diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-14 16:42:43 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-14 16:42:43 -0400 |
commit | 2cf4d4514d5b43c1f3b64bd0ec8b9853bde8f1dc (patch) | |
tree | e35a625496acc6ac852846d40b8851186b9d1ac4 /arch/arm/mach-u300 | |
parent | 44b7532b8b464f606053562400719c9c21276037 (diff) | |
parent | ce53895a5d24e0ee19fb92f56c17323fb4c9ab27 (diff) |
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (417 commits)
MAINTAINERS: EB110ATX is not ebsa110
MAINTAINERS: update Eric Miao's email address and status
fb: add support of LCD display controller on pxa168/910 (base layer)
[ARM] 5552/1: ep93xx get_uart_rate(): use EP93XX_SYSCON_PWRCNT and EP93XX_SYSCON_PWRCN
[ARM] pxa/sharpsl_pm: zaurus needs generic pxa suspend/resume routines
[ARM] 5544/1: Trust PrimeCell resource sizes
[ARM] pxa/sharpsl_pm: cleanup of gpio-related code.
[ARM] pxa/sharpsl_pm: drop set_irq_type calls
[ARM] pxa/sharpsl_pm: merge pxa-specific code into generic one
[ARM] pxa/sharpsl_pm: merge the two sharpsl_pm.c since it's now pxa specific
[ARM] sa1100: remove unused collie_pm.c
[ARM] pxa: fix the conflicting non-static declarations of global_gpios[]
[ARM] 5550/1: Add default configure file for w90p910 platform
[ARM] 5549/1: Add clock api for w90p910 platform.
[ARM] 5548/1: Add gpio api for w90p910 platform
[ARM] 5551/1: Add multi-function pin api for w90p910 platform.
[ARM] Make ARM_VIC_NR depend on ARM_VIC
[ARM] 5546/1: ARM PL022 SSP/SPI driver v3
ARM: OMAP4: SMP: Update defconfig for OMAP4430
ARM: OMAP4: SMP: Enable SMP support for OMAP4430
...
Diffstat (limited to 'arch/arm/mach-u300')
28 files changed, 5318 insertions, 0 deletions
diff --git a/arch/arm/mach-u300/Kconfig b/arch/arm/mach-u300/Kconfig new file mode 100644 index 000000000000..337b9aabce49 --- /dev/null +++ b/arch/arm/mach-u300/Kconfig | |||
@@ -0,0 +1,105 @@ | |||
1 | if ARCH_U300 | ||
2 | |||
3 | menu "ST-Ericsson AB U300/U330/U335/U365 Platform" | ||
4 | |||
5 | comment "ST-Ericsson Mobile Platform Products" | ||
6 | |||
7 | config MACH_U300 | ||
8 | bool "U300" | ||
9 | |||
10 | comment "ST-Ericsson U300/U330/U335/U365 Feature Selections" | ||
11 | |||
12 | choice | ||
13 | prompt "U300/U330/U335/U365 system type" | ||
14 | default MACH_U300_BS2X | ||
15 | ---help--- | ||
16 | You need to select the target system, i.e. the | ||
17 | U300/U330/U335/U365 board that you want to compile your kernel | ||
18 | for. | ||
19 | |||
20 | config MACH_U300_BS2X | ||
21 | bool "S26/S26/B25/B26 Test Products" | ||
22 | depends on MACH_U300 | ||
23 | help | ||
24 | Select this if you're developing on the | ||
25 | S26/S25 test products. (Also works on | ||
26 | B26/B25 big boards.) | ||
27 | |||
28 | config MACH_U300_BS330 | ||
29 | bool "S330/B330 Test Products" | ||
30 | depends on MACH_U300 | ||
31 | help | ||
32 | Select this if you're developing on the | ||
33 | S330/B330 test products. | ||
34 | |||
35 | config MACH_U300_BS335 | ||
36 | bool "S335/B335 Test Products" | ||
37 | depends on MACH_U300 | ||
38 | help | ||
39 | Select this if you're developing on the | ||
40 | S335/B335 test products. | ||
41 | |||
42 | config MACH_U300_BS365 | ||
43 | bool "S365/B365 Test Products" | ||
44 | depends on MACH_U300 | ||
45 | help | ||
46 | Select this if you're developing on the | ||
47 | S365/B365 test products. | ||
48 | |||
49 | endchoice | ||
50 | |||
51 | choice | ||
52 | prompt "Memory configuration" | ||
53 | default MACH_U300_SINGLE_RAM | ||
54 | ---help--- | ||
55 | You have to config the kernel according to the physical memory | ||
56 | configuration. | ||
57 | |||
58 | config MACH_U300_SINGLE_RAM | ||
59 | bool "Single RAM" | ||
60 | help | ||
61 | Select this if you want support for Single RAM phones. | ||
62 | |||
63 | config MACH_U300_DUAL_RAM | ||
64 | bool "Dual RAM" | ||
65 | help | ||
66 | Select this if you want support for Dual RAM phones. | ||
67 | This is two RAM memorys on different EMIFs. | ||
68 | endchoice | ||
69 | |||
70 | config U300_DEBUG | ||
71 | bool "Debug support for U300" | ||
72 | depends on PM | ||
73 | help | ||
74 | Debug support for U300 in sysfs, procfs etc. | ||
75 | |||
76 | config MACH_U300_SEMI_IS_SHARED | ||
77 | bool "The SEMI is used by both the access and application side" | ||
78 | depends on MACH_U300 | ||
79 | help | ||
80 | This makes it possible to use the SEMI (Shared External | ||
81 | Memory Interface) from both from access and application | ||
82 | side. | ||
83 | |||
84 | comment "All the settings below must match the bootloader's settings" | ||
85 | |||
86 | config MACH_U300_ACCESS_MEM_SIZE | ||
87 | int "Access CPU memory allocation" | ||
88 | range 7 25 | ||
89 | depends on MACH_U300_SINGLE_RAM | ||
90 | default 13 | ||
91 | help | ||
92 | How much memory in MiB that the Access side CPU has allocated | ||
93 | |||
94 | config MACH_U300_2MB_ALIGNMENT_FIX | ||
95 | bool "2MiB alignment fix" | ||
96 | depends on MACH_U300_SINGLE_RAM | ||
97 | default y | ||
98 | help | ||
99 | If yes and the Access side CPU has allocated an odd size in | ||
100 | MiB, this fix gives you one MiB extra that would otherwise be | ||
101 | lost due to Linux 2 MiB alignment policy. | ||
102 | |||
103 | endmenu | ||
104 | |||
105 | endif | ||
diff --git a/arch/arm/mach-u300/Makefile b/arch/arm/mach-u300/Makefile new file mode 100644 index 000000000000..24950e0df4b4 --- /dev/null +++ b/arch/arm/mach-u300/Makefile | |||
@@ -0,0 +1,11 @@ | |||
1 | # | ||
2 | # Makefile for the linux kernel, U300 machine. | ||
3 | # | ||
4 | |||
5 | obj-y := core.o clock.o timer.o gpio.o padmux.o | ||
6 | obj-m := | ||
7 | obj-n := | ||
8 | obj- := | ||
9 | |||
10 | obj-$(CONFIG_ARCH_U300) += u300.o | ||
11 | obj-$(CONFIG_MMC) += mmc.o | ||
diff --git a/arch/arm/mach-u300/Makefile.boot b/arch/arm/mach-u300/Makefile.boot new file mode 100644 index 000000000000..6fbfc6ea2d35 --- /dev/null +++ b/arch/arm/mach-u300/Makefile.boot | |||
@@ -0,0 +1,15 @@ | |||
1 | # Note: the following conditions must always be true: | ||
2 | # ZRELADDR == virt_to_phys(TEXTADDR) | ||
3 | # PARAMS_PHYS must be within 4MB of ZRELADDR | ||
4 | # INITRD_PHYS must be in RAM | ||
5 | |||
6 | ifdef CONFIG_MACH_U300_SINGLE_RAM | ||
7 | zreladdr-y := 0x28E08000 | ||
8 | params_phys-y := 0x28E00100 | ||
9 | else | ||
10 | zreladdr-y := 0x48008000 | ||
11 | params_phys-y := 0x48000100 | ||
12 | endif | ||
13 | |||
14 | # This isn't used. | ||
15 | #initrd_phys-y := 0x29800000 | ||
diff --git a/arch/arm/mach-u300/clock.c b/arch/arm/mach-u300/clock.c new file mode 100644 index 000000000000..5cd04d6751b3 --- /dev/null +++ b/arch/arm/mach-u300/clock.c | |||
@@ -0,0 +1,1487 @@ | |||
1 | /* | ||
2 | * | ||
3 | * arch/arm/mach-u300/clock.c | ||
4 | * | ||
5 | * | ||
6 | * Copyright (C) 2007-2009 ST-Ericsson AB | ||
7 | * License terms: GNU General Public License (GPL) version 2 | ||
8 | * Define clocks in the app platform. | ||
9 | * Author: Linus Walleij <linus.walleij@stericsson.com> | ||
10 | * Author: Jonas Aaberg <jonas.aberg@stericsson.com> | ||
11 | * | ||
12 | */ | ||
13 | #include <linux/module.h> | ||
14 | #include <linux/kernel.h> | ||
15 | #include <linux/list.h> | ||
16 | #include <linux/errno.h> | ||
17 | #include <linux/err.h> | ||
18 | #include <linux/string.h> | ||
19 | #include <linux/clk.h> | ||
20 | #include <linux/mutex.h> | ||
21 | #include <linux/spinlock.h> | ||
22 | #include <linux/debugfs.h> | ||
23 | #include <linux/device.h> | ||
24 | #include <linux/init.h> | ||
25 | #include <linux/timer.h> | ||
26 | #include <linux/io.h> | ||
27 | |||
28 | #include <asm/clkdev.h> | ||
29 | #include <mach/hardware.h> | ||
30 | #include <mach/syscon.h> | ||
31 | |||
32 | #include "clock.h" | ||
33 | |||
34 | /* | ||
35 | * TODO: | ||
36 | * - move all handling of the CCR register into this file and create | ||
37 | * a spinlock for the CCR register | ||
38 | * - switch to the clkdevice lookup mechanism that maps clocks to | ||
39 | * device ID:s instead when it becomes available in kernel 2.6.29. | ||
40 | * - implement rate get/set for all clocks that need it. | ||
41 | */ | ||
42 | |||
43 | /* | ||
44 | * Syscon clock I/O registers lock so clock requests don't collide | ||
45 | * NOTE: this is a local lock only used to lock access to clock and | ||
46 | * reset registers in syscon. | ||
47 | */ | ||
48 | static DEFINE_SPINLOCK(syscon_clkreg_lock); | ||
49 | static DEFINE_SPINLOCK(syscon_resetreg_lock); | ||
50 | |||
51 | /* | ||
52 | * The clocking hierarchy currently looks like this. | ||
53 | * NOTE: the idea is NOT to show how the clocks are routed on the chip! | ||
54 | * The ideas is to show dependencies, so a clock higher up in the | ||
55 | * hierarchy has to be on in order for another clock to be on. Now, | ||
56 | * both CPU and DMA can actually be on top of the hierarchy, and that | ||
57 | * is not modeled currently. Instead we have the backbone AMBA bus on | ||
58 | * top. This bus cannot be programmed in any way but conceptually it | ||
59 | * needs to be active for the bridges and devices to transport data. | ||
60 | * | ||
61 | * Please be aware that a few clocks are hw controlled, which mean that | ||
62 | * the hw itself can turn on/off or change the rate of the clock when | ||
63 | * needed! | ||
64 | * | ||
65 | * AMBA bus | ||
66 | * | | ||
67 | * +- CPU | ||
68 | * +- NANDIF NAND Flash interface | ||
69 | * +- SEMI Shared Memory interface | ||
70 | * +- ISP Image Signal Processor (U335 only) | ||
71 | * +- CDS (U335 only) | ||
72 | * +- DMA Direct Memory Access Controller | ||
73 | * +- AAIF APP/ACC Inteface (Mobile Scalable Link, MSL) | ||
74 | * +- APEX | ||
75 | * +- VIDEO_ENC AVE2/3 Video Encoder | ||
76 | * +- XGAM Graphics Accelerator Controller | ||
77 | * +- AHB | ||
78 | * | | ||
79 | * +- ahb:0 AHB Bridge | ||
80 | * | | | ||
81 | * | +- ahb:1 INTCON Interrupt controller | ||
82 | * | +- ahb:3 MSPRO Memory Stick Pro controller | ||
83 | * | +- ahb:4 EMIF External Memory interface | ||
84 | * | | ||
85 | * +- fast:0 FAST bridge | ||
86 | * | | | ||
87 | * | +- fast:1 MMCSD MMC/SD card reader controller | ||
88 | * | +- fast:2 I2S0 PCM I2S channel 0 controller | ||
89 | * | +- fast:3 I2S1 PCM I2S channel 1 controller | ||
90 | * | +- fast:4 I2C0 I2C channel 0 controller | ||
91 | * | +- fast:5 I2C1 I2C channel 1 controller | ||
92 | * | +- fast:6 SPI SPI controller | ||
93 | * | +- fast:7 UART1 Secondary UART (U335 only) | ||
94 | * | | ||
95 | * +- slow:0 SLOW bridge | ||
96 | * | | ||
97 | * +- slow:1 SYSCON (not possible to control) | ||
98 | * +- slow:2 WDOG Watchdog | ||
99 | * +- slow:3 UART0 primary UART | ||
100 | * +- slow:4 TIMER_APP Application timer - used in Linux | ||
101 | * +- slow:5 KEYPAD controller | ||
102 | * +- slow:6 GPIO controller | ||
103 | * +- slow:7 RTC controller | ||
104 | * +- slow:8 BT Bus Tracer (not used currently) | ||
105 | * +- slow:9 EH Event Handler (not used currently) | ||
106 | * +- slow:a TIMER_ACC Access style timer (not used currently) | ||
107 | * +- slow:b PPM (U335 only, what is that?) | ||
108 | */ | ||
109 | |||
110 | /* | ||
111 | * Reset control functions. We remember if a block has been | ||
112 | * taken out of reset and don't remove the reset assertion again | ||
113 | * and vice versa. Currently we only remove resets so the | ||
114 | * enablement function is defined out. | ||
115 | */ | ||
116 | static void syscon_block_reset_enable(struct clk *clk) | ||
117 | { | ||
118 | u16 val; | ||
119 | unsigned long iflags; | ||
120 | |||
121 | /* Not all blocks support resetting */ | ||
122 | if (!clk->res_reg || !clk->res_mask) | ||
123 | return; | ||
124 | spin_lock_irqsave(&syscon_resetreg_lock, iflags); | ||
125 | val = readw(clk->res_reg); | ||
126 | val |= clk->res_mask; | ||
127 | writew(val, clk->res_reg); | ||
128 | spin_unlock_irqrestore(&syscon_resetreg_lock, iflags); | ||
129 | clk->reset = true; | ||
130 | } | ||
131 | |||
132 | static void syscon_block_reset_disable(struct clk *clk) | ||
133 | { | ||
134 | u16 val; | ||
135 | unsigned long iflags; | ||
136 | |||
137 | /* Not all blocks support resetting */ | ||
138 | if (!clk->res_reg || !clk->res_mask) | ||
139 | return; | ||
140 | spin_lock_irqsave(&syscon_resetreg_lock, iflags); | ||
141 | val = readw(clk->res_reg); | ||
142 | val &= ~clk->res_mask; | ||
143 | writew(val, clk->res_reg); | ||
144 | spin_unlock_irqrestore(&syscon_resetreg_lock, iflags); | ||
145 | clk->reset = false; | ||
146 | } | ||
147 | |||
148 | int __clk_get(struct clk *clk) | ||
149 | { | ||
150 | u16 val; | ||
151 | |||
152 | /* The MMC and MSPRO clocks need some special set-up */ | ||
153 | if (!strcmp(clk->name, "MCLK")) { | ||
154 | /* Set default MMC clock divisor to 18.9 MHz */ | ||
155 | writew(0x0054U, U300_SYSCON_VBASE + U300_SYSCON_MMF0R); | ||
156 | val = readw(U300_SYSCON_VBASE + U300_SYSCON_MMCR); | ||
157 | /* Disable the MMC feedback clock */ | ||
158 | val &= ~U300_SYSCON_MMCR_MMC_FB_CLK_SEL_ENABLE; | ||
159 | /* Disable MSPRO frequency */ | ||
160 | val &= ~U300_SYSCON_MMCR_MSPRO_FREQSEL_ENABLE; | ||
161 | writew(val, U300_SYSCON_VBASE + U300_SYSCON_MMCR); | ||
162 | } | ||
163 | if (!strcmp(clk->name, "MSPRO")) { | ||
164 | val = readw(U300_SYSCON_VBASE + U300_SYSCON_MMCR); | ||
165 | /* Disable the MMC feedback clock */ | ||
166 | val &= ~U300_SYSCON_MMCR_MMC_FB_CLK_SEL_ENABLE; | ||
167 | /* Enable MSPRO frequency */ | ||
168 | val |= U300_SYSCON_MMCR_MSPRO_FREQSEL_ENABLE; | ||
169 | writew(val, U300_SYSCON_VBASE + U300_SYSCON_MMCR); | ||
170 | } | ||
171 | return 1; | ||
172 | } | ||
173 | EXPORT_SYMBOL(__clk_get); | ||
174 | |||
175 | void __clk_put(struct clk *clk) | ||
176 | { | ||
177 | } | ||
178 | EXPORT_SYMBOL(__clk_put); | ||
179 | |||
180 | static void syscon_clk_disable(struct clk *clk) | ||
181 | { | ||
182 | unsigned long iflags; | ||
183 | |||
184 | /* Don't touch the hardware controlled clocks */ | ||
185 | if (clk->hw_ctrld) | ||
186 | return; | ||
187 | |||
188 | spin_lock_irqsave(&syscon_clkreg_lock, iflags); | ||
189 | writew(clk->clk_val, U300_SYSCON_VBASE + U300_SYSCON_SBCDR); | ||
190 | spin_unlock_irqrestore(&syscon_clkreg_lock, iflags); | ||
191 | } | ||
192 | |||
193 | static void syscon_clk_enable(struct clk *clk) | ||
194 | { | ||
195 | unsigned long iflags; | ||
196 | |||
197 | /* Don't touch the hardware controlled clocks */ | ||
198 | if (clk->hw_ctrld) | ||
199 | return; | ||
200 | |||
201 | spin_lock_irqsave(&syscon_clkreg_lock, iflags); | ||
202 | writew(clk->clk_val, U300_SYSCON_VBASE + U300_SYSCON_SBCER); | ||
203 | spin_unlock_irqrestore(&syscon_clkreg_lock, iflags); | ||
204 | } | ||
205 | |||
206 | static u16 syscon_clk_get_rate(void) | ||
207 | { | ||
208 | u16 val; | ||
209 | unsigned long iflags; | ||
210 | |||
211 | spin_lock_irqsave(&syscon_clkreg_lock, iflags); | ||
212 | val = readw(U300_SYSCON_VBASE + U300_SYSCON_CCR); | ||
213 | val &= U300_SYSCON_CCR_CLKING_PERFORMANCE_MASK; | ||
214 | spin_unlock_irqrestore(&syscon_clkreg_lock, iflags); | ||
215 | return val; | ||
216 | } | ||
217 | |||
218 | #ifdef CONFIG_MACH_U300_USE_I2S_AS_MASTER | ||
219 | static void enable_i2s0_vcxo(void) | ||
220 | { | ||
221 | u16 val; | ||
222 | unsigned long iflags; | ||
223 | |||
224 | spin_lock_irqsave(&syscon_clkreg_lock, iflags); | ||
225 | /* Set I2S0 to use the VCXO 26 MHz clock */ | ||
226 | val = readw(U300_SYSCON_VBASE + U300_SYSCON_CCR); | ||
227 | val |= U300_SYSCON_CCR_TURN_VCXO_ON; | ||
228 | writew(val, U300_SYSCON_VBASE + U300_SYSCON_CCR); | ||
229 | val |= U300_SYSCON_CCR_I2S0_USE_VCXO; | ||
230 | writew(val, U300_SYSCON_VBASE + U300_SYSCON_CCR); | ||
231 | val = readw(U300_SYSCON_VBASE + U300_SYSCON_CEFR); | ||
232 | val |= U300_SYSCON_CEFR_I2S0_CLK_EN; | ||
233 | writew(val, U300_SYSCON_VBASE + U300_SYSCON_CEFR); | ||
234 | spin_unlock_irqrestore(&syscon_clkreg_lock, iflags); | ||
235 | } | ||
236 | |||
237 | static void enable_i2s1_vcxo(void) | ||
238 | { | ||
239 | u16 val; | ||
240 | unsigned long iflags; | ||
241 | |||
242 | spin_lock_irqsave(&syscon_clkreg_lock, iflags); | ||
243 | /* Set I2S1 to use the VCXO 26 MHz clock */ | ||
244 | val = readw(U300_SYSCON_VBASE + U300_SYSCON_CCR); | ||
245 | val |= U300_SYSCON_CCR_TURN_VCXO_ON; | ||
246 | writew(val, U300_SYSCON_VBASE + U300_SYSCON_CCR); | ||
247 | val |= U300_SYSCON_CCR_I2S1_USE_VCXO; | ||
248 | writew(val, U300_SYSCON_VBASE + U300_SYSCON_CCR); | ||
249 | val = readw(U300_SYSCON_VBASE + U300_SYSCON_CEFR); | ||
250 | val |= U300_SYSCON_CEFR_I2S1_CLK_EN; | ||
251 | writew(val, U300_SYSCON_VBASE + U300_SYSCON_CEFR); | ||
252 | spin_unlock_irqrestore(&syscon_clkreg_lock, iflags); | ||
253 | } | ||
254 | |||
255 | static void disable_i2s0_vcxo(void) | ||
256 | { | ||
257 | u16 val; | ||
258 | unsigned long iflags; | ||
259 | |||
260 | spin_lock_irqsave(&syscon_clkreg_lock, iflags); | ||
261 | /* Disable I2S0 use of the VCXO 26 MHz clock */ | ||
262 | val = readw(U300_SYSCON_VBASE + U300_SYSCON_CCR); | ||
263 | val &= ~U300_SYSCON_CCR_I2S0_USE_VCXO; | ||
264 | writew(val, U300_SYSCON_VBASE + U300_SYSCON_CCR); | ||
265 | /* Deactivate VCXO if noone else is using VCXO */ | ||
266 | if (!(val & U300_SYSCON_CCR_I2S1_USE_VCXO)) | ||
267 | val &= ~U300_SYSCON_CCR_TURN_VCXO_ON; | ||
268 | writew(val, U300_SYSCON_VBASE + U300_SYSCON_CCR); | ||
269 | val = readw(U300_SYSCON_VBASE + U300_SYSCON_CEFR); | ||
270 | val &= ~U300_SYSCON_CEFR_I2S0_CLK_EN; | ||
271 | writew(val, U300_SYSCON_VBASE + U300_SYSCON_CEFR); | ||
272 | spin_unlock_irqrestore(&syscon_clkreg_lock, iflags); | ||
273 | } | ||
274 | |||
275 | static void disable_i2s1_vcxo(void) | ||
276 | { | ||
277 | u16 val; | ||
278 | unsigned long iflags; | ||
279 | |||
280 | spin_lock_irqsave(&syscon_clkreg_lock, iflags); | ||
281 | /* Disable I2S1 use of the VCXO 26 MHz clock */ | ||
282 | val = readw(U300_SYSCON_VBASE + U300_SYSCON_CCR); | ||
283 | val &= ~U300_SYSCON_CCR_I2S1_USE_VCXO; | ||
284 | writew(val, U300_SYSCON_VBASE + U300_SYSCON_CCR); | ||
285 | /* Deactivate VCXO if noone else is using VCXO */ | ||
286 | if (!(val & U300_SYSCON_CCR_I2S0_USE_VCXO)) | ||
287 | val &= ~U300_SYSCON_CCR_TURN_VCXO_ON; | ||
288 | writew(val, U300_SYSCON_VBASE + U300_SYSCON_CCR); | ||
289 | val = readw(U300_SYSCON_VBASE + U300_SYSCON_CEFR); | ||
290 | val &= ~U300_SYSCON_CEFR_I2S0_CLK_EN; | ||
291 | writew(val, U300_SYSCON_VBASE + U300_SYSCON_CEFR); | ||
292 | spin_unlock_irqrestore(&syscon_clkreg_lock, iflags); | ||
293 | } | ||
294 | #endif /* CONFIG_MACH_U300_USE_I2S_AS_MASTER */ | ||
295 | |||
296 | |||
297 | static void syscon_clk_rate_set_mclk(unsigned long rate) | ||
298 | { | ||
299 | u16 val; | ||
300 | u32 reg; | ||
301 | unsigned long iflags; | ||
302 | |||
303 | switch (rate) { | ||
304 | case 18900000: | ||
305 | val = 0x0054; | ||
306 | break; | ||
307 | case 20800000: | ||
308 | val = 0x0044; | ||
309 | break; | ||
310 | case 23100000: | ||
311 | val = 0x0043; | ||
312 | break; | ||
313 | case 26000000: | ||
314 | val = 0x0033; | ||
315 | break; | ||
316 | case 29700000: | ||
317 | val = 0x0032; | ||
318 | break; | ||
319 | case 34700000: | ||
320 | val = 0x0022; | ||
321 | break; | ||
322 | case 41600000: | ||
323 | val = 0x0021; | ||
324 | break; | ||
325 | case 52000000: | ||
326 | val = 0x0011; | ||
327 | break; | ||
328 | case 104000000: | ||
329 | val = 0x0000; | ||
330 | break; | ||
331 | default: | ||
332 | printk(KERN_ERR "Trying to set MCLK to unknown speed! %ld\n", | ||
333 | rate); | ||
334 | return; | ||
335 | } | ||
336 | |||
337 | spin_lock_irqsave(&syscon_clkreg_lock, iflags); | ||
338 | reg = readw(U300_SYSCON_VBASE + U300_SYSCON_MMF0R) & | ||
339 | ~U300_SYSCON_MMF0R_MASK; | ||
340 | writew(reg | val, U300_SYSCON_VBASE + U300_SYSCON_MMF0R); | ||
341 | spin_unlock_irqrestore(&syscon_clkreg_lock, iflags); | ||
342 | } | ||
343 | |||
344 | void syscon_clk_rate_set_cpuclk(unsigned long rate) | ||
345 | { | ||
346 | u16 val; | ||
347 | unsigned long iflags; | ||
348 | |||
349 | switch (rate) { | ||
350 | case 13000000: | ||
351 | val = U300_SYSCON_CCR_CLKING_PERFORMANCE_LOW_POWER; | ||
352 | break; | ||
353 | case 52000000: | ||
354 | val = U300_SYSCON_CCR_CLKING_PERFORMANCE_INTERMEDIATE; | ||
355 | break; | ||
356 | case 104000000: | ||
357 | val = U300_SYSCON_CCR_CLKING_PERFORMANCE_HIGH; | ||
358 | break; | ||
359 | case 208000000: | ||
360 | val = U300_SYSCON_CCR_CLKING_PERFORMANCE_BEST; | ||
361 | break; | ||
362 | default: | ||
363 | return; | ||
364 | } | ||
365 | spin_lock_irqsave(&syscon_clkreg_lock, iflags); | ||
366 | val |= readw(U300_SYSCON_VBASE + U300_SYSCON_CCR) & | ||
367 | ~U300_SYSCON_CCR_CLKING_PERFORMANCE_MASK ; | ||
368 | writew(val, U300_SYSCON_VBASE + U300_SYSCON_CCR); | ||
369 | spin_unlock_irqrestore(&syscon_clkreg_lock, iflags); | ||
370 | } | ||
371 | EXPORT_SYMBOL(syscon_clk_rate_set_cpuclk); | ||
372 | |||
373 | void clk_disable(struct clk *clk) | ||
374 | { | ||
375 | unsigned long iflags; | ||
376 | |||
377 | spin_lock_irqsave(&clk->lock, iflags); | ||
378 | if (clk->usecount > 0 && !(--clk->usecount)) { | ||
379 | /* some blocks lack clocking registers and cannot be disabled */ | ||
380 | if (clk->disable) | ||
381 | clk->disable(clk); | ||
382 | if (likely((u32)clk->parent)) | ||
383 | clk_disable(clk->parent); | ||
384 | } | ||
385 | #ifdef CONFIG_MACH_U300_USE_I2S_AS_MASTER | ||
386 | if (unlikely(!strcmp(clk->name, "I2S0"))) | ||
387 | disable_i2s0_vcxo(); | ||
388 | if (unlikely(!strcmp(clk->name, "I2S1"))) | ||
389 | disable_i2s1_vcxo(); | ||
390 | #endif | ||
391 | spin_unlock_irqrestore(&clk->lock, iflags); | ||
392 | } | ||
393 | EXPORT_SYMBOL(clk_disable); | ||
394 | |||
395 | int clk_enable(struct clk *clk) | ||
396 | { | ||
397 | int ret = 0; | ||
398 | unsigned long iflags; | ||
399 | |||
400 | spin_lock_irqsave(&clk->lock, iflags); | ||
401 | if (clk->usecount++ == 0) { | ||
402 | if (likely((u32)clk->parent)) | ||
403 | ret = clk_enable(clk->parent); | ||
404 | |||
405 | if (unlikely(ret != 0)) | ||
406 | clk->usecount--; | ||
407 | else { | ||
408 | /* remove reset line (we never enable reset again) */ | ||
409 | syscon_block_reset_disable(clk); | ||
410 | /* clocks without enable function are always on */ | ||
411 | if (clk->enable) | ||
412 | clk->enable(clk); | ||
413 | #ifdef CONFIG_MACH_U300_USE_I2S_AS_MASTER | ||
414 | if (unlikely(!strcmp(clk->name, "I2S0"))) | ||
415 | enable_i2s0_vcxo(); | ||
416 | if (unlikely(!strcmp(clk->name, "I2S1"))) | ||
417 | enable_i2s1_vcxo(); | ||
418 | #endif | ||
419 | } | ||
420 | } | ||
421 | spin_unlock_irqrestore(&clk->lock, iflags); | ||
422 | return ret; | ||
423 | |||
424 | } | ||
425 | EXPORT_SYMBOL(clk_enable); | ||
426 | |||
427 | /* Returns the clock rate in Hz */ | ||
428 | static unsigned long clk_get_rate_cpuclk(struct clk *clk) | ||
429 | { | ||
430 | u16 val; | ||
431 | |||
432 | val = syscon_clk_get_rate(); | ||
433 | |||
434 | switch (val) { | ||
435 | case U300_SYSCON_CCR_CLKING_PERFORMANCE_LOW_POWER: | ||
436 | case U300_SYSCON_CCR_CLKING_PERFORMANCE_LOW: | ||
437 | return 13000000; | ||
438 | case U300_SYSCON_CCR_CLKING_PERFORMANCE_INTERMEDIATE: | ||
439 | return 52000000; | ||
440 | case U300_SYSCON_CCR_CLKING_PERFORMANCE_HIGH: | ||
441 | return 104000000; | ||
442 | case U300_SYSCON_CCR_CLKING_PERFORMANCE_BEST: | ||
443 | return 208000000; | ||
444 | default: | ||
445 | break; | ||
446 | } | ||
447 | return clk->rate; | ||
448 | } | ||
449 | |||
450 | static unsigned long clk_get_rate_ahb_clk(struct clk *clk) | ||
451 | { | ||
452 | u16 val; | ||
453 | |||
454 | val = syscon_clk_get_rate(); | ||
455 | |||
456 | switch (val) { | ||
457 | case U300_SYSCON_CCR_CLKING_PERFORMANCE_LOW_POWER: | ||
458 | case U300_SYSCON_CCR_CLKING_PERFORMANCE_LOW: | ||
459 | return 6500000; | ||
460 | case U300_SYSCON_CCR_CLKING_PERFORMANCE_INTERMEDIATE: | ||
461 | return 26000000; | ||
462 | case U300_SYSCON_CCR_CLKING_PERFORMANCE_HIGH: | ||
463 | case U300_SYSCON_CCR_CLKING_PERFORMANCE_BEST: | ||
464 | return 52000000; | ||
465 | default: | ||
466 | break; | ||
467 | } | ||
468 | return clk->rate; | ||
469 | |||
470 | } | ||
471 | |||
472 | static unsigned long clk_get_rate_emif_clk(struct clk *clk) | ||
473 | { | ||
474 | u16 val; | ||
475 | |||
476 | val = syscon_clk_get_rate(); | ||
477 | |||
478 | switch (val) { | ||
479 | case U300_SYSCON_CCR_CLKING_PERFORMANCE_LOW_POWER: | ||
480 | case U300_SYSCON_CCR_CLKING_PERFORMANCE_LOW: | ||
481 | return 13000000; | ||
482 | case U300_SYSCON_CCR_CLKING_PERFORMANCE_INTERMEDIATE: | ||
483 | return 52000000; | ||
484 | case U300_SYSCON_CCR_CLKING_PERFORMANCE_HIGH: | ||
485 | case U300_SYSCON_CCR_CLKING_PERFORMANCE_BEST: | ||
486 | return 104000000; | ||
487 | default: | ||
488 | break; | ||
489 | } | ||
490 | return clk->rate; | ||
491 | |||
492 | } | ||
493 | |||
494 | static unsigned long clk_get_rate_xgamclk(struct clk *clk) | ||
495 | { | ||
496 | u16 val; | ||
497 | |||
498 | val = syscon_clk_get_rate(); | ||
499 | |||
500 | switch (val) { | ||
501 | case U300_SYSCON_CCR_CLKING_PERFORMANCE_LOW_POWER: | ||
502 | case U300_SYSCON_CCR_CLKING_PERFORMANCE_LOW: | ||
503 | return 6500000; | ||
504 | case U300_SYSCON_CCR_CLKING_PERFORMANCE_INTERMEDIATE: | ||
505 | return 26000000; | ||
506 | case U300_SYSCON_CCR_CLKING_PERFORMANCE_HIGH: | ||
507 | case U300_SYSCON_CCR_CLKING_PERFORMANCE_BEST: | ||
508 | return 52000000; | ||
509 | default: | ||
510 | break; | ||
511 | } | ||
512 | |||
513 | return clk->rate; | ||
514 | } | ||
515 | |||
516 | static unsigned long clk_get_rate_mclk(struct clk *clk) | ||
517 | { | ||
518 | u16 val; | ||
519 | |||
520 | val = syscon_clk_get_rate(); | ||
521 | |||
522 | switch (val) { | ||
523 | case U300_SYSCON_CCR_CLKING_PERFORMANCE_LOW_POWER: | ||
524 | /* | ||
525 | * Here, the 208 MHz PLL gets shut down and the always | ||
526 | * on 13 MHz PLL used for RTC etc kicks into use | ||
527 | * instead. | ||
528 | */ | ||
529 | return 13000000; | ||
530 | case U300_SYSCON_CCR_CLKING_PERFORMANCE_LOW: | ||
531 | case U300_SYSCON_CCR_CLKING_PERFORMANCE_INTERMEDIATE: | ||
532 | case U300_SYSCON_CCR_CLKING_PERFORMANCE_HIGH: | ||
533 | case U300_SYSCON_CCR_CLKING_PERFORMANCE_BEST: | ||
534 | { | ||
535 | /* | ||
536 | * This clock is under program control. The register is | ||
537 | * divided in two nybbles, bit 7-4 gives cycles-1 to count | ||
538 | * high, bit 3-0 gives cycles-1 to count low. Distribute | ||
539 | * these with no more than 1 cycle difference between | ||
540 | * low and high and add low and high to get the actual | ||
541 | * divisor. The base PLL is 208 MHz. Writing 0x00 will | ||
542 | * divide by 1 and 1 so the highest frequency possible | ||
543 | * is 104 MHz. | ||
544 | * | ||
545 | * e.g. 0x54 => | ||
546 | * f = 208 / ((5+1) + (4+1)) = 208 / 11 = 18.9 MHz | ||
547 | */ | ||
548 | u16 val = readw(U300_SYSCON_VBASE + U300_SYSCON_MMF0R) & | ||
549 | U300_SYSCON_MMF0R_MASK; | ||
550 | switch (val) { | ||
551 | case 0x0054: | ||
552 | return 18900000; | ||
553 | case 0x0044: | ||
554 | return 20800000; | ||
555 | case 0x0043: | ||
556 | return 23100000; | ||
557 | case 0x0033: | ||
558 | return 26000000; | ||
559 | case 0x0032: | ||
560 | return 29700000; | ||
561 | case 0x0022: | ||
562 | return 34700000; | ||
563 | case 0x0021: | ||
564 | return 41600000; | ||
565 | case 0x0011: | ||
566 | return 52000000; | ||
567 | case 0x0000: | ||
568 | return 104000000; | ||
569 | default: | ||
570 | break; | ||
571 | } | ||
572 | } | ||
573 | default: | ||
574 | break; | ||
575 | } | ||
576 | |||
577 | return clk->rate; | ||
578 | } | ||
579 | |||
580 | static unsigned long clk_get_rate_i2s_i2c_spi(struct clk *clk) | ||
581 | { | ||
582 | u16 val; | ||
583 | |||
584 | val = syscon_clk_get_rate(); | ||
585 | |||
586 | switch (val) { | ||
587 | case U300_SYSCON_CCR_CLKING_PERFORMANCE_LOW_POWER: | ||
588 | case U300_SYSCON_CCR_CLKING_PERFORMANCE_LOW: | ||
589 | return 13000000; | ||
590 | case U300_SYSCON_CCR_CLKING_PERFORMANCE_INTERMEDIATE: | ||
591 | case U300_SYSCON_CCR_CLKING_PERFORMANCE_HIGH: | ||
592 | case U300_SYSCON_CCR_CLKING_PERFORMANCE_BEST: | ||
593 | return 26000000; | ||
594 | default: | ||
595 | break; | ||
596 | } | ||
597 | |||
598 | return clk->rate; | ||
599 | } | ||
600 | |||
601 | unsigned long clk_get_rate(struct clk *clk) | ||
602 | { | ||
603 | if (clk->get_rate) | ||
604 | return clk->get_rate(clk); | ||
605 | else | ||
606 | return clk->rate; | ||
607 | } | ||
608 | EXPORT_SYMBOL(clk_get_rate); | ||
609 | |||
610 | static unsigned long clk_round_rate_mclk(struct clk *clk, unsigned long rate) | ||
611 | { | ||
612 | if (rate >= 18900000) | ||
613 | return 18900000; | ||
614 | if (rate >= 20800000) | ||
615 | return 20800000; | ||
616 | if (rate >= 23100000) | ||
617 | return 23100000; | ||
618 | if (rate >= 26000000) | ||
619 | return 26000000; | ||
620 | if (rate >= 29700000) | ||
621 | return 29700000; | ||
622 | if (rate >= 34700000) | ||
623 | return 34700000; | ||
624 | if (rate >= 41600000) | ||
625 | return 41600000; | ||
626 | if (rate >= 52000000) | ||
627 | return 52000000; | ||
628 | return -EINVAL; | ||
629 | } | ||
630 | |||
631 | static unsigned long clk_round_rate_cpuclk(struct clk *clk, unsigned long rate) | ||
632 | { | ||
633 | if (rate >= 13000000) | ||
634 | return 13000000; | ||
635 | if (rate >= 52000000) | ||
636 | return 52000000; | ||
637 | if (rate >= 104000000) | ||
638 | return 104000000; | ||
639 | if (rate >= 208000000) | ||
640 | return 208000000; | ||
641 | return -EINVAL; | ||
642 | } | ||
643 | |||
644 | /* | ||
645 | * This adjusts a requested rate to the closest exact rate | ||
646 | * a certain clock can provide. For a fixed clock it's | ||
647 | * mostly clk->rate. | ||
648 | */ | ||
649 | long clk_round_rate(struct clk *clk, unsigned long rate) | ||
650 | { | ||
651 | /* TODO: get apropriate switches for EMIFCLK, AHBCLK and MCLK */ | ||
652 | /* Else default to fixed value */ | ||
653 | |||
654 | if (clk->round_rate) { | ||
655 | return (long) clk->round_rate(clk, rate); | ||
656 | } else { | ||
657 | printk(KERN_ERR "clock: Failed to round rate of %s\n", | ||
658 | clk->name); | ||
659 | } | ||
660 | return (long) clk->rate; | ||
661 | } | ||
662 | EXPORT_SYMBOL(clk_round_rate); | ||
663 | |||
664 | static int clk_set_rate_mclk(struct clk *clk, unsigned long rate) | ||
665 | { | ||
666 | syscon_clk_rate_set_mclk(clk_round_rate(clk, rate)); | ||
667 | return 0; | ||
668 | } | ||
669 | |||
670 | static int clk_set_rate_cpuclk(struct clk *clk, unsigned long rate) | ||
671 | { | ||
672 | syscon_clk_rate_set_cpuclk(clk_round_rate(clk, rate)); | ||
673 | return 0; | ||
674 | } | ||
675 | |||
676 | int clk_set_rate(struct clk *clk, unsigned long rate) | ||
677 | { | ||
678 | /* TODO: set for EMIFCLK and AHBCLK */ | ||
679 | /* Else assume the clock is fixed and fail */ | ||
680 | if (clk->set_rate) { | ||
681 | return clk->set_rate(clk, rate); | ||
682 | } else { | ||
683 | printk(KERN_ERR "clock: Failed to set %s to %ld hz\n", | ||
684 | clk->name, rate); | ||
685 | return -EINVAL; | ||
686 | } | ||
687 | } | ||
688 | EXPORT_SYMBOL(clk_set_rate); | ||
689 | |||
690 | /* | ||
691 | * Clock definitions. The clock parents are set to respective | ||
692 | * bridge and the clock framework makes sure that the clocks have | ||
693 | * parents activated and are brought out of reset when in use. | ||
694 | * | ||
695 | * Clocks that have hw_ctrld = true are hw controlled, and the hw | ||
696 | * can by itself turn these clocks on and off. | ||
697 | * So in other words, we don't really have to care about them. | ||
698 | */ | ||
699 | |||
700 | static struct clk amba_clk = { | ||
701 | .name = "AMBA", | ||
702 | .rate = 52000000, /* this varies! */ | ||
703 | .hw_ctrld = true, | ||
704 | .reset = false, | ||
705 | }; | ||
706 | |||
707 | /* | ||
708 | * These blocks are connected directly to the AMBA bus | ||
709 | * with no bridge. | ||
710 | */ | ||
711 | |||
712 | static struct clk cpu_clk = { | ||
713 | .name = "CPU", | ||
714 | .parent = &amba_clk, | ||
715 | .rate = 208000000, /* this varies! */ | ||
716 | .hw_ctrld = true, | ||
717 | .reset = true, | ||
718 | .res_reg = U300_SYSCON_VBASE + U300_SYSCON_RRR, | ||
719 | .res_mask = U300_SYSCON_RRR_CPU_RESET_EN, | ||
720 | .set_rate = clk_set_rate_cpuclk, | ||
721 | .get_rate = clk_get_rate_cpuclk, | ||
722 | .round_rate = clk_round_rate_cpuclk, | ||
723 | }; | ||
724 | |||
725 | static struct clk nandif_clk = { | ||
726 | .name = "NANDIF", | ||
727 | .parent = &amba_clk, | ||
728 | .hw_ctrld = false, | ||
729 | .reset = true, | ||
730 | .res_reg = U300_SYSCON_VBASE + U300_SYSCON_RRR, | ||
731 | .res_mask = U300_SYSCON_RRR_NANDIF_RESET_EN, | ||
732 | .clk_val = U300_SYSCON_SBCER_NANDIF_CLK_EN, | ||
733 | .enable = syscon_clk_enable, | ||
734 | .disable = syscon_clk_disable, | ||
735 | }; | ||
736 | |||
737 | static struct clk semi_clk = { | ||
738 | .name = "SEMI", | ||
739 | .parent = &amba_clk, | ||
740 | .rate = 0, /* FIXME */ | ||
741 | /* It is not possible to reset SEMI */ | ||
742 | .hw_ctrld = false, | ||
743 | .reset = false, | ||
744 | .clk_val = U300_SYSCON_SBCER_SEMI_CLK_EN, | ||
745 | .enable = syscon_clk_enable, | ||
746 | .disable = syscon_clk_disable, | ||
747 | }; | ||
748 | |||
749 | #ifdef CONFIG_MACH_U300_BS335 | ||
750 | static struct clk isp_clk = { | ||
751 | .name = "ISP", | ||
752 | .parent = &amba_clk, | ||
753 | .rate = 0, /* FIXME */ | ||
754 | .hw_ctrld = false, | ||
755 | .reset = true, | ||
756 | .res_reg = U300_SYSCON_VBASE + U300_SYSCON_RRR, | ||
757 | .res_mask = U300_SYSCON_RRR_ISP_RESET_EN, | ||
758 | .clk_val = U300_SYSCON_SBCER_ISP_CLK_EN, | ||
759 | .enable = syscon_clk_enable, | ||
760 | .disable = syscon_clk_disable, | ||
761 | }; | ||
762 | |||
763 | static struct clk cds_clk = { | ||
764 | .name = "CDS", | ||
765 | .parent = &amba_clk, | ||
766 | .rate = 0, /* FIXME */ | ||
767 | .hw_ctrld = false, | ||
768 | .reset = true, | ||
769 | .res_reg = U300_SYSCON_VBASE + U300_SYSCON_RRR, | ||
770 | .res_mask = U300_SYSCON_RRR_CDS_RESET_EN, | ||
771 | .clk_val = U300_SYSCON_SBCER_CDS_CLK_EN, | ||
772 | .enable = syscon_clk_enable, | ||
773 | .disable = syscon_clk_disable, | ||
774 | }; | ||
775 | #endif | ||
776 | |||
777 | static struct clk dma_clk = { | ||
778 | .name = "DMA", | ||
779 | .parent = &amba_clk, | ||
780 | .rate = 52000000, /* this varies! */ | ||
781 | .hw_ctrld = true, | ||
782 | .reset = true, | ||
783 | .res_reg = U300_SYSCON_VBASE + U300_SYSCON_RRR, | ||
784 | .res_mask = U300_SYSCON_RRR_DMAC_RESET_EN, | ||
785 | .clk_val = U300_SYSCON_SBCER_DMAC_CLK_EN, | ||
786 | .enable = syscon_clk_enable, | ||
787 | .disable = syscon_clk_disable, | ||
788 | }; | ||
789 | |||
790 | static struct clk aaif_clk = { | ||
791 | .name = "AAIF", | ||
792 | .parent = &amba_clk, | ||
793 | .rate = 52000000, /* this varies! */ | ||
794 | .hw_ctrld = true, | ||
795 | .reset = true, | ||
796 | .res_reg = U300_SYSCON_VBASE + U300_SYSCON_RRR, | ||
797 | .res_mask = U300_SYSCON_RRR_AAIF_RESET_EN, | ||
798 | .clk_val = U300_SYSCON_SBCER_AAIF_CLK_EN, | ||
799 | .enable = syscon_clk_enable, | ||
800 | .disable = syscon_clk_disable, | ||
801 | }; | ||
802 | |||
803 | static struct clk apex_clk = { | ||
804 | .name = "APEX", | ||
805 | .parent = &amba_clk, | ||
806 | .rate = 0, /* FIXME */ | ||
807 | .hw_ctrld = true, | ||
808 | .reset = true, | ||
809 | .res_reg = U300_SYSCON_VBASE + U300_SYSCON_RRR, | ||
810 | .res_mask = U300_SYSCON_RRR_APEX_RESET_EN, | ||
811 | .clk_val = U300_SYSCON_SBCER_APEX_CLK_EN, | ||
812 | .enable = syscon_clk_enable, | ||
813 | .disable = syscon_clk_disable, | ||
814 | }; | ||
815 | |||
816 | static struct clk video_enc_clk = { | ||
817 | .name = "VIDEO_ENC", | ||
818 | .parent = &amba_clk, | ||
819 | .rate = 208000000, /* this varies! */ | ||
820 | .hw_ctrld = false, | ||
821 | .reset = false, | ||
822 | .res_reg = U300_SYSCON_VBASE + U300_SYSCON_RRR, | ||
823 | /* This has XGAM in the name but refers to the video encoder */ | ||
824 | .res_mask = U300_SYSCON_RRR_XGAM_VC_SYNC_RESET_EN, | ||
825 | .clk_val = U300_SYSCON_SBCER_VIDEO_ENC_CLK_EN, | ||
826 | .enable = syscon_clk_enable, | ||
827 | .disable = syscon_clk_disable, | ||
828 | }; | ||
829 | |||
830 | static struct clk xgam_clk = { | ||
831 | .name = "XGAMCLK", | ||
832 | .parent = &amba_clk, | ||
833 | .rate = 52000000, /* this varies! */ | ||
834 | .hw_ctrld = false, | ||
835 | .reset = true, | ||
836 | .res_reg = U300_SYSCON_VBASE + U300_SYSCON_RRR, | ||
837 | .res_mask = U300_SYSCON_RRR_XGAM_RESET_EN, | ||
838 | .clk_val = U300_SYSCON_SBCER_XGAM_CLK_EN, | ||
839 | .get_rate = clk_get_rate_xgamclk, | ||
840 | .enable = syscon_clk_enable, | ||
841 | .disable = syscon_clk_disable, | ||
842 | }; | ||
843 | |||
844 | /* This clock is used to activate the video encoder */ | ||
845 | static struct clk ahb_clk = { | ||
846 | .name = "AHB", | ||
847 | .parent = &amba_clk, | ||
848 | .rate = 52000000, /* this varies! */ | ||
849 | .hw_ctrld = false, /* This one is set to false due to HW bug */ | ||
850 | .reset = true, | ||
851 | .res_reg = U300_SYSCON_VBASE + U300_SYSCON_RRR, | ||
852 | .res_mask = U300_SYSCON_RRR_AHB_RESET_EN, | ||
853 | .clk_val = U300_SYSCON_SBCER_AHB_CLK_EN, | ||
854 | .enable = syscon_clk_enable, | ||
855 | .disable = syscon_clk_disable, | ||
856 | .get_rate = clk_get_rate_ahb_clk, | ||
857 | }; | ||
858 | |||
859 | |||
860 | /* | ||
861 | * Clocks on the AHB bridge | ||
862 | */ | ||
863 | |||
864 | static struct clk ahb_subsys_clk = { | ||
865 | .name = "AHB_SUBSYS", | ||
866 | .parent = &amba_clk, | ||
867 | .rate = 52000000, /* this varies! */ | ||
868 | .hw_ctrld = true, | ||
869 | .reset = false, | ||
870 | .clk_val = U300_SYSCON_SBCER_AHB_SUBSYS_BRIDGE_CLK_EN, | ||
871 | .enable = syscon_clk_enable, | ||
872 | .disable = syscon_clk_disable, | ||
873 | .get_rate = clk_get_rate_ahb_clk, | ||
874 | }; | ||
875 | |||
876 | static struct clk intcon_clk = { | ||
877 | .name = "INTCON", | ||
878 | .parent = &ahb_subsys_clk, | ||
879 | .rate = 52000000, /* this varies! */ | ||
880 | .hw_ctrld = false, | ||
881 | .reset = true, | ||
882 | .res_reg = U300_SYSCON_VBASE + U300_SYSCON_RRR, | ||
883 | .res_mask = U300_SYSCON_RRR_INTCON_RESET_EN, | ||
884 | /* INTCON can be reset but not clock-gated */ | ||
885 | }; | ||
886 | |||
887 | static struct clk mspro_clk = { | ||
888 | .name = "MSPRO", | ||
889 | .parent = &ahb_subsys_clk, | ||
890 | .rate = 0, /* FIXME */ | ||
891 | .hw_ctrld = false, | ||
892 | .reset = true, | ||
893 | .res_reg = U300_SYSCON_VBASE + U300_SYSCON_RRR, | ||
894 | .res_mask = U300_SYSCON_RRR_MSPRO_RESET_EN, | ||
895 | .clk_val = U300_SYSCON_SBCER_MSPRO_CLK_EN, | ||
896 | .enable = syscon_clk_enable, | ||
897 | .disable = syscon_clk_disable, | ||
898 | }; | ||
899 | |||
900 | static struct clk emif_clk = { | ||
901 | .name = "EMIF", | ||
902 | .parent = &ahb_subsys_clk, | ||
903 | .rate = 104000000, /* this varies! */ | ||
904 | .hw_ctrld = false, | ||
905 | .reset = true, | ||
906 | .res_reg = U300_SYSCON_VBASE + U300_SYSCON_RRR, | ||
907 | .res_mask = U300_SYSCON_RRR_EMIF_RESET_EN, | ||
908 | .clk_val = U300_SYSCON_SBCER_EMIF_CLK_EN, | ||
909 | .enable = syscon_clk_enable, | ||
910 | .disable = syscon_clk_disable, | ||
911 | .get_rate = clk_get_rate_emif_clk, | ||
912 | }; | ||
913 | |||
914 | |||
915 | /* | ||
916 | * Clocks on the FAST bridge | ||
917 | */ | ||
918 | static struct clk fast_clk = { | ||
919 | .name = "FAST_BRIDGE", | ||
920 | .parent = &amba_clk, | ||
921 | .rate = 13000000, /* this varies! */ | ||
922 | .hw_ctrld = true, | ||
923 | .reset = true, | ||
924 | .res_reg = U300_SYSCON_VBASE + U300_SYSCON_RFR, | ||
925 | .res_mask = U300_SYSCON_RFR_FAST_BRIDGE_RESET_ENABLE, | ||
926 | .clk_val = U300_SYSCON_SBCER_FAST_BRIDGE_CLK_EN, | ||
927 | .enable = syscon_clk_enable, | ||
928 | .disable = syscon_clk_disable, | ||
929 | }; | ||
930 | |||
931 | static struct clk mmcsd_clk = { | ||
932 | .name = "MCLK", | ||
933 | .parent = &fast_clk, | ||
934 | .rate = 18900000, /* this varies! */ | ||
935 | .hw_ctrld = false, | ||
936 | .reset = true, | ||
937 | .res_reg = U300_SYSCON_VBASE + U300_SYSCON_RFR, | ||
938 | .res_mask = U300_SYSCON_RFR_MMC_RESET_ENABLE, | ||
939 | .clk_val = U300_SYSCON_SBCER_MMC_CLK_EN, | ||
940 | .get_rate = clk_get_rate_mclk, | ||
941 | .set_rate = clk_set_rate_mclk, | ||
942 | .round_rate = clk_round_rate_mclk, | ||
943 | .disable = syscon_clk_disable, | ||
944 | .enable = syscon_clk_enable, | ||
945 | }; | ||
946 | |||
947 | static struct clk i2s0_clk = { | ||
948 | .name = "i2s0", | ||
949 | .parent = &fast_clk, | ||
950 | .rate = 26000000, /* this varies! */ | ||
951 | .hw_ctrld = true, | ||
952 | .reset = true, | ||
953 | .res_reg = U300_SYSCON_VBASE + U300_SYSCON_RFR, | ||
954 | .res_mask = U300_SYSCON_RFR_PCM_I2S0_RESET_ENABLE, | ||
955 | .clk_val = U300_SYSCON_SBCER_I2S0_CORE_CLK_EN, | ||
956 | .enable = syscon_clk_enable, | ||
957 | .disable = syscon_clk_disable, | ||
958 | .get_rate = clk_get_rate_i2s_i2c_spi, | ||
959 | }; | ||
960 | |||
961 | static struct clk i2s1_clk = { | ||
962 | .name = "i2s1", | ||
963 | .parent = &fast_clk, | ||
964 | .rate = 26000000, /* this varies! */ | ||
965 | .hw_ctrld = true, | ||
966 | .reset = true, | ||
967 | .res_reg = U300_SYSCON_VBASE + U300_SYSCON_RFR, | ||
968 | .res_mask = U300_SYSCON_RFR_PCM_I2S1_RESET_ENABLE, | ||
969 | .clk_val = U300_SYSCON_SBCER_I2S1_CORE_CLK_EN, | ||
970 | .enable = syscon_clk_enable, | ||
971 | .disable = syscon_clk_disable, | ||
972 | .get_rate = clk_get_rate_i2s_i2c_spi, | ||
973 | }; | ||
974 | |||
975 | static struct clk i2c0_clk = { | ||
976 | .name = "I2C0", | ||
977 | .parent = &fast_clk, | ||
978 | .rate = 26000000, /* this varies! */ | ||
979 | .hw_ctrld = false, | ||
980 | .reset = true, | ||
981 | .res_reg = U300_SYSCON_VBASE + U300_SYSCON_RFR, | ||
982 | .res_mask = U300_SYSCON_RFR_I2C0_RESET_ENABLE, | ||
983 | .clk_val = U300_SYSCON_SBCER_I2C0_CLK_EN, | ||
984 | .enable = syscon_clk_enable, | ||
985 | .disable = syscon_clk_disable, | ||
986 | .get_rate = clk_get_rate_i2s_i2c_spi, | ||
987 | }; | ||
988 | |||
989 | static struct clk i2c1_clk = { | ||
990 | .name = "I2C1", | ||
991 | .parent = &fast_clk, | ||
992 | .rate = 26000000, /* this varies! */ | ||
993 | .hw_ctrld = false, | ||
994 | .reset = true, | ||
995 | .res_reg = U300_SYSCON_VBASE + U300_SYSCON_RFR, | ||
996 | .res_mask = U300_SYSCON_RFR_I2C1_RESET_ENABLE, | ||
997 | .clk_val = U300_SYSCON_SBCER_I2C1_CLK_EN, | ||
998 | .enable = syscon_clk_enable, | ||
999 | .disable = syscon_clk_disable, | ||
1000 | .get_rate = clk_get_rate_i2s_i2c_spi, | ||
1001 | }; | ||
1002 | |||
1003 | static struct clk spi_clk = { | ||
1004 | .name = "SPI", | ||
1005 | .parent = &fast_clk, | ||
1006 | .rate = 26000000, /* this varies! */ | ||
1007 | .hw_ctrld = false, | ||
1008 | .reset = true, | ||
1009 | .res_reg = U300_SYSCON_VBASE + U300_SYSCON_RFR, | ||
1010 | .res_mask = U300_SYSCON_RFR_SPI_RESET_ENABLE, | ||
1011 | .clk_val = U300_SYSCON_SBCER_SPI_CLK_EN, | ||
1012 | .enable = syscon_clk_enable, | ||
1013 | .disable = syscon_clk_disable, | ||
1014 | .get_rate = clk_get_rate_i2s_i2c_spi, | ||
1015 | }; | ||
1016 | |||
1017 | #ifdef CONFIG_MACH_U300_BS335 | ||
1018 | static struct clk uart1_clk = { | ||
1019 | .name = "UART1", | ||
1020 | .parent = &fast_clk, | ||
1021 | .rate = 13000000, | ||
1022 | .hw_ctrld = false, | ||
1023 | .reset = true, | ||
1024 | .res_reg = U300_SYSCON_VBASE + U300_SYSCON_RFR, | ||
1025 | .res_mask = U300_SYSCON_RFR_UART1_RESET_ENABLE, | ||
1026 | .clk_val = U300_SYSCON_SBCER_UART1_CLK_EN, | ||
1027 | .enable = syscon_clk_enable, | ||
1028 | .disable = syscon_clk_disable, | ||
1029 | }; | ||
1030 | #endif | ||
1031 | |||
1032 | |||
1033 | /* | ||
1034 | * Clocks on the SLOW bridge | ||
1035 | */ | ||
1036 | static struct clk slow_clk = { | ||
1037 | .name = "SLOW_BRIDGE", | ||
1038 | .parent = &amba_clk, | ||
1039 | .rate = 13000000, | ||
1040 | .hw_ctrld = true, | ||
1041 | .reset = true, | ||
1042 | .res_reg = U300_SYSCON_VBASE + U300_SYSCON_RSR, | ||
1043 | .res_mask = U300_SYSCON_RSR_SLOW_BRIDGE_RESET_EN, | ||
1044 | .clk_val = U300_SYSCON_SBCER_SLOW_BRIDGE_CLK_EN, | ||
1045 | .enable = syscon_clk_enable, | ||
1046 | .disable = syscon_clk_disable, | ||
1047 | }; | ||
1048 | |||
1049 | /* TODO: implement SYSCON clock? */ | ||
1050 | |||
1051 | static struct clk wdog_clk = { | ||
1052 | .name = "WDOG", | ||
1053 | .parent = &slow_clk, | ||
1054 | .hw_ctrld = false, | ||
1055 | .rate = 32768, | ||
1056 | .reset = false, | ||
1057 | /* This is always on, cannot be enabled/disabled or reset */ | ||
1058 | }; | ||
1059 | |||
1060 | /* This one is hardwired to PLL13 */ | ||
1061 | static struct clk uart_clk = { | ||
1062 | .name = "UARTCLK", | ||
1063 | .parent = &slow_clk, | ||
1064 | .rate = 13000000, | ||
1065 | .hw_ctrld = false, | ||
1066 | .reset = true, | ||
1067 | .res_reg = U300_SYSCON_VBASE + U300_SYSCON_RSR, | ||
1068 | .res_mask = U300_SYSCON_RSR_UART_RESET_EN, | ||
1069 | .clk_val = U300_SYSCON_SBCER_UART_CLK_EN, | ||
1070 | .enable = syscon_clk_enable, | ||
1071 | .disable = syscon_clk_disable, | ||
1072 | }; | ||
1073 | |||
1074 | static struct clk keypad_clk = { | ||
1075 | .name = "KEYPAD", | ||
1076 | .parent = &slow_clk, | ||
1077 | .rate = 32768, | ||
1078 | .hw_ctrld = false, | ||
1079 | .reset = true, | ||
1080 | .res_reg = U300_SYSCON_VBASE + U300_SYSCON_RSR, | ||
1081 | .res_mask = U300_SYSCON_RSR_KEYPAD_RESET_EN, | ||
1082 | .clk_val = U300_SYSCON_SBCER_KEYPAD_CLK_EN, | ||
1083 | .enable = syscon_clk_enable, | ||
1084 | .disable = syscon_clk_disable, | ||
1085 | }; | ||
1086 | |||
1087 | static struct clk gpio_clk = { | ||
1088 | .name = "GPIO", | ||
1089 | .parent = &slow_clk, | ||
1090 | .rate = 13000000, | ||
1091 | .hw_ctrld = true, | ||
1092 | .reset = true, | ||
1093 | .res_reg = U300_SYSCON_VBASE + U300_SYSCON_RSR, | ||
1094 | .res_mask = U300_SYSCON_RSR_GPIO_RESET_EN, | ||
1095 | .clk_val = U300_SYSCON_SBCER_GPIO_CLK_EN, | ||
1096 | .enable = syscon_clk_enable, | ||
1097 | .disable = syscon_clk_disable, | ||
1098 | }; | ||
1099 | |||
1100 | static struct clk rtc_clk = { | ||
1101 | .name = "RTC", | ||
1102 | .parent = &slow_clk, | ||
1103 | .rate = 32768, | ||
1104 | .hw_ctrld = true, | ||
1105 | .reset = true, | ||
1106 | .res_reg = U300_SYSCON_VBASE + U300_SYSCON_RSR, | ||
1107 | .res_mask = U300_SYSCON_RSR_RTC_RESET_EN, | ||
1108 | /* This clock is always on, cannot be enabled/disabled */ | ||
1109 | }; | ||
1110 | |||
1111 | static struct clk bustr_clk = { | ||
1112 | .name = "BUSTR", | ||
1113 | .parent = &slow_clk, | ||
1114 | .rate = 13000000, | ||
1115 | .hw_ctrld = true, | ||
1116 | .reset = true, | ||
1117 | .res_reg = U300_SYSCON_VBASE + U300_SYSCON_RSR, | ||
1118 | .res_mask = U300_SYSCON_RSR_BTR_RESET_EN, | ||
1119 | .clk_val = U300_SYSCON_SBCER_BTR_CLK_EN, | ||
1120 | .enable = syscon_clk_enable, | ||
1121 | .disable = syscon_clk_disable, | ||
1122 | }; | ||
1123 | |||
1124 | static struct clk evhist_clk = { | ||
1125 | .name = "EVHIST", | ||
1126 | .parent = &slow_clk, | ||
1127 | .rate = 13000000, | ||
1128 | .hw_ctrld = true, | ||
1129 | .reset = true, | ||
1130 | .res_reg = U300_SYSCON_VBASE + U300_SYSCON_RSR, | ||
1131 | .res_mask = U300_SYSCON_RSR_EH_RESET_EN, | ||
1132 | .clk_val = U300_SYSCON_SBCER_EH_CLK_EN, | ||
1133 | .enable = syscon_clk_enable, | ||
1134 | .disable = syscon_clk_disable, | ||
1135 | }; | ||
1136 | |||
1137 | static struct clk timer_clk = { | ||
1138 | .name = "TIMER", | ||
1139 | .parent = &slow_clk, | ||
1140 | .rate = 13000000, | ||
1141 | .hw_ctrld = true, | ||
1142 | .reset = true, | ||
1143 | .res_reg = U300_SYSCON_VBASE + U300_SYSCON_RSR, | ||
1144 | .res_mask = U300_SYSCON_RSR_ACC_TMR_RESET_EN, | ||
1145 | .clk_val = U300_SYSCON_SBCER_ACC_TMR_CLK_EN, | ||
1146 | .enable = syscon_clk_enable, | ||
1147 | .disable = syscon_clk_disable, | ||
1148 | }; | ||
1149 | |||
1150 | static struct clk app_timer_clk = { | ||
1151 | .name = "TIMER_APP", | ||
1152 | .parent = &slow_clk, | ||
1153 | .rate = 13000000, | ||
1154 | .hw_ctrld = true, | ||
1155 | .reset = true, | ||
1156 | .res_reg = U300_SYSCON_VBASE + U300_SYSCON_RSR, | ||
1157 | .res_mask = U300_SYSCON_RSR_APP_TMR_RESET_EN, | ||
1158 | .clk_val = U300_SYSCON_SBCER_APP_TMR_CLK_EN, | ||
1159 | .enable = syscon_clk_enable, | ||
1160 | .disable = syscon_clk_disable, | ||
1161 | }; | ||
1162 | |||
1163 | #ifdef CONFIG_MACH_U300_BS335 | ||
1164 | static struct clk ppm_clk = { | ||
1165 | .name = "PPM", | ||
1166 | .parent = &slow_clk, | ||
1167 | .rate = 0, /* FIXME */ | ||
1168 | .hw_ctrld = true, /* TODO: Look up if it is hw ctrld or not */ | ||
1169 | .reset = true, | ||
1170 | .res_reg = U300_SYSCON_VBASE + U300_SYSCON_RSR, | ||
1171 | .res_mask = U300_SYSCON_RSR_PPM_RESET_EN, | ||
1172 | .clk_val = U300_SYSCON_SBCER_PPM_CLK_EN, | ||
1173 | .enable = syscon_clk_enable, | ||
1174 | .disable = syscon_clk_disable, | ||
1175 | }; | ||
1176 | #endif | ||
1177 | |||
1178 | #define DEF_LOOKUP(devid, clkref) \ | ||
1179 | { \ | ||
1180 | .dev_id = devid, \ | ||
1181 | .clk = clkref, \ | ||
1182 | } | ||
1183 | |||
1184 | /* | ||
1185 | * Here we only define clocks that are meaningful to | ||
1186 | * look up through clockdevice. | ||
1187 | */ | ||
1188 | static struct clk_lookup lookups[] = { | ||
1189 | /* Connected directly to the AMBA bus */ | ||
1190 | DEF_LOOKUP("amba", &amba_clk), | ||
1191 | DEF_LOOKUP("cpu", &cpu_clk), | ||
1192 | DEF_LOOKUP("nandif", &nandif_clk), | ||
1193 | DEF_LOOKUP("semi", &semi_clk), | ||
1194 | #ifdef CONFIG_MACH_U300_BS335 | ||
1195 | DEF_LOOKUP("isp", &isp_clk), | ||
1196 | DEF_LOOKUP("cds", &cds_clk), | ||
1197 | #endif | ||
1198 | DEF_LOOKUP("dma", &dma_clk), | ||
1199 | DEF_LOOKUP("aaif", &aaif_clk), | ||
1200 | DEF_LOOKUP("apex", &apex_clk), | ||
1201 | DEF_LOOKUP("video_enc", &video_enc_clk), | ||
1202 | DEF_LOOKUP("xgam", &xgam_clk), | ||
1203 | DEF_LOOKUP("ahb", &ahb_clk), | ||
1204 | /* AHB bridge clocks */ | ||
1205 | DEF_LOOKUP("ahb", &ahb_subsys_clk), | ||
1206 | DEF_LOOKUP("intcon", &intcon_clk), | ||
1207 | DEF_LOOKUP("mspro", &mspro_clk), | ||
1208 | DEF_LOOKUP("pl172", &emif_clk), | ||
1209 | /* FAST bridge clocks */ | ||
1210 | DEF_LOOKUP("fast", &fast_clk), | ||
1211 | DEF_LOOKUP("mmci", &mmcsd_clk), | ||
1212 | /* | ||
1213 | * The .0 and .1 identifiers on these comes from the platform device | ||
1214 | * .id field and are assigned when the platform devices are registered. | ||
1215 | */ | ||
1216 | DEF_LOOKUP("i2s.0", &i2s0_clk), | ||
1217 | DEF_LOOKUP("i2s.1", &i2s1_clk), | ||
1218 | DEF_LOOKUP("stddci2c.0", &i2c0_clk), | ||
1219 | DEF_LOOKUP("stddci2c.1", &i2c1_clk), | ||
1220 | DEF_LOOKUP("pl022", &spi_clk), | ||
1221 | #ifdef CONFIG_MACH_U300_BS335 | ||
1222 | DEF_LOOKUP("uart1", &uart1_clk), | ||
1223 | #endif | ||
1224 | /* SLOW bridge clocks */ | ||
1225 | DEF_LOOKUP("slow", &slow_clk), | ||
1226 | DEF_LOOKUP("wdog", &wdog_clk), | ||
1227 | DEF_LOOKUP("uart0", &uart_clk), | ||
1228 | DEF_LOOKUP("apptimer", &app_timer_clk), | ||
1229 | DEF_LOOKUP("keypad", &keypad_clk), | ||
1230 | DEF_LOOKUP("u300-gpio", &gpio_clk), | ||
1231 | DEF_LOOKUP("rtc0", &rtc_clk), | ||
1232 | DEF_LOOKUP("bustr", &bustr_clk), | ||
1233 | DEF_LOOKUP("evhist", &evhist_clk), | ||
1234 | DEF_LOOKUP("timer", &timer_clk), | ||
1235 | #ifdef CONFIG_MACH_U300_BS335 | ||
1236 | DEF_LOOKUP("ppm", &ppm_clk), | ||
1237 | #endif | ||
1238 | }; | ||
1239 | |||
1240 | static void __init clk_register(void) | ||
1241 | { | ||
1242 | int i; | ||
1243 | |||
1244 | /* Register the lookups */ | ||
1245 | for (i = 0; i < ARRAY_SIZE(lookups); i++) | ||
1246 | clkdev_add(&lookups[i]); | ||
1247 | } | ||
1248 | |||
1249 | /* | ||
1250 | * These are the clocks for cells registered as primecell drivers | ||
1251 | * on the AMBA bus. These must be on during AMBA device registration | ||
1252 | * since the bus probe will attempt to read magic configuration | ||
1253 | * registers for these devices. If they are deactivated these probes | ||
1254 | * will fail. | ||
1255 | * | ||
1256 | * | ||
1257 | * Please note that on emif, both RAM and NAND is connected in dual | ||
1258 | * RAM phones. On single RAM phones, ram is on semi and NAND on emif. | ||
1259 | * | ||
1260 | */ | ||
1261 | void u300_clock_primecells(void) | ||
1262 | { | ||
1263 | clk_enable(&intcon_clk); | ||
1264 | clk_enable(&uart_clk); | ||
1265 | #ifdef CONFIG_MACH_U300_BS335 | ||
1266 | clk_enable(&uart1_clk); | ||
1267 | #endif | ||
1268 | clk_enable(&spi_clk); | ||
1269 | |||
1270 | clk_enable(&mmcsd_clk); | ||
1271 | |||
1272 | } | ||
1273 | EXPORT_SYMBOL(u300_clock_primecells); | ||
1274 | |||
1275 | void u300_unclock_primecells(void) | ||
1276 | { | ||
1277 | |||
1278 | clk_disable(&intcon_clk); | ||
1279 | clk_disable(&uart_clk); | ||
1280 | #ifdef CONFIG_MACH_U300_BS335 | ||
1281 | clk_disable(&uart1_clk); | ||
1282 | #endif | ||
1283 | clk_disable(&spi_clk); | ||
1284 | clk_disable(&mmcsd_clk); | ||
1285 | |||
1286 | } | ||
1287 | EXPORT_SYMBOL(u300_unclock_primecells); | ||
1288 | |||
1289 | /* | ||
1290 | * The interrupt controller is enabled before the clock API is registered. | ||
1291 | */ | ||
1292 | void u300_enable_intcon_clock(void) | ||
1293 | { | ||
1294 | clk_enable(&intcon_clk); | ||
1295 | } | ||
1296 | EXPORT_SYMBOL(u300_enable_intcon_clock); | ||
1297 | |||
1298 | /* | ||
1299 | * The timer is enabled before the clock API is registered. | ||
1300 | */ | ||
1301 | void u300_enable_timer_clock(void) | ||
1302 | { | ||
1303 | clk_enable(&app_timer_clk); | ||
1304 | } | ||
1305 | EXPORT_SYMBOL(u300_enable_timer_clock); | ||
1306 | |||
1307 | #if (defined(CONFIG_DEBUG_FS) && defined(CONFIG_U300_DEBUG)) | ||
1308 | /* | ||
1309 | * The following makes it possible to view the status (especially | ||
1310 | * reference count and reset status) for the clocks in the platform | ||
1311 | * by looking into the special file <debugfs>/u300_clocks | ||
1312 | */ | ||
1313 | |||
1314 | /* A list of all clocks in the platform */ | ||
1315 | static struct clk *clks[] = { | ||
1316 | /* Top node clock for the AMBA bus */ | ||
1317 | &amba_clk, | ||
1318 | /* Connected directly to the AMBA bus */ | ||
1319 | &cpu_clk, | ||
1320 | &nandif_clk, | ||
1321 | &semi_clk, | ||
1322 | #ifdef CONFIG_MACH_U300_BS335 | ||
1323 | &isp_clk, | ||
1324 | &cds_clk, | ||
1325 | #endif | ||
1326 | &dma_clk, | ||
1327 | &aaif_clk, | ||
1328 | &apex_clk, | ||
1329 | &video_enc_clk, | ||
1330 | &xgam_clk, | ||
1331 | &ahb_clk, | ||
1332 | |||
1333 | /* AHB bridge clocks */ | ||
1334 | &ahb_subsys_clk, | ||
1335 | &intcon_clk, | ||
1336 | &mspro_clk, | ||
1337 | &emif_clk, | ||
1338 | /* FAST bridge clocks */ | ||
1339 | &fast_clk, | ||
1340 | &mmcsd_clk, | ||
1341 | &i2s0_clk, | ||
1342 | &i2s1_clk, | ||
1343 | &i2c0_clk, | ||
1344 | &i2c1_clk, | ||
1345 | &spi_clk, | ||
1346 | #ifdef CONFIG_MACH_U300_BS335 | ||
1347 | &uart1_clk, | ||
1348 | #endif | ||
1349 | /* SLOW bridge clocks */ | ||
1350 | &slow_clk, | ||
1351 | &wdog_clk, | ||
1352 | &uart_clk, | ||
1353 | &app_timer_clk, | ||
1354 | &keypad_clk, | ||
1355 | &gpio_clk, | ||
1356 | &rtc_clk, | ||
1357 | &bustr_clk, | ||
1358 | &evhist_clk, | ||
1359 | &timer_clk, | ||
1360 | #ifdef CONFIG_MACH_U300_BS335 | ||
1361 | &ppm_clk, | ||
1362 | #endif | ||
1363 | }; | ||
1364 | |||
1365 | static int u300_clocks_show(struct seq_file *s, void *data) | ||
1366 | { | ||
1367 | struct clk *clk; | ||
1368 | int i; | ||
1369 | |||
1370 | seq_printf(s, "CLOCK DEVICE RESET STATE\t" \ | ||
1371 | "ACTIVE\tUSERS\tHW CTRL FREQ\n"); | ||
1372 | seq_printf(s, "---------------------------------------------" \ | ||
1373 | "-----------------------------------------\n"); | ||
1374 | for (i = 0; i < ARRAY_SIZE(clks); i++) { | ||
1375 | clk = clks[i]; | ||
1376 | if (clk != ERR_PTR(-ENOENT)) { | ||
1377 | /* Format clock and device name nicely */ | ||
1378 | char cdp[33]; | ||
1379 | int chars; | ||
1380 | |||
1381 | chars = snprintf(&cdp[0], 17, "%s", clk->name); | ||
1382 | while (chars < 16) { | ||
1383 | cdp[chars] = ' '; | ||
1384 | chars++; | ||
1385 | } | ||
1386 | chars = snprintf(&cdp[16], 17, "%s", clk->dev ? | ||
1387 | dev_name(clk->dev) : "N/A"); | ||
1388 | while (chars < 16) { | ||
1389 | cdp[chars+16] = ' '; | ||
1390 | chars++; | ||
1391 | } | ||
1392 | cdp[32] = '\0'; | ||
1393 | if (clk->get_rate) | ||
1394 | seq_printf(s, | ||
1395 | "%s%s\t%s\t%d\t%s\t%lu Hz\n", | ||
1396 | &cdp[0], | ||
1397 | clk->reset ? | ||
1398 | "ASSERTED" : "RELEASED", | ||
1399 | clk->usecount ? "ON" : "OFF", | ||
1400 | clk->usecount, | ||
1401 | clk->hw_ctrld ? "YES" : "NO ", | ||
1402 | clk->get_rate(clk)); | ||
1403 | else | ||
1404 | seq_printf(s, | ||
1405 | "%s%s\t%s\t%d\t%s\t" \ | ||
1406 | "(unknown rate)\n", | ||
1407 | &cdp[0], | ||
1408 | clk->reset ? | ||
1409 | "ASSERTED" : "RELEASED", | ||
1410 | clk->usecount ? "ON" : "OFF", | ||
1411 | clk->usecount, | ||
1412 | clk->hw_ctrld ? "YES" : "NO "); | ||
1413 | } | ||
1414 | } | ||
1415 | return 0; | ||
1416 | } | ||
1417 | |||
1418 | static int u300_clocks_open(struct inode *inode, struct file *file) | ||
1419 | { | ||
1420 | return single_open(file, u300_clocks_show, NULL); | ||
1421 | } | ||
1422 | |||
1423 | static const struct file_operations u300_clocks_operations = { | ||
1424 | .open = u300_clocks_open, | ||
1425 | .read = seq_read, | ||
1426 | .llseek = seq_lseek, | ||
1427 | .release = single_release, | ||
1428 | }; | ||
1429 | |||
1430 | static void init_clk_read_procfs(void) | ||
1431 | { | ||
1432 | /* Expose a simple debugfs interface to view all clocks */ | ||
1433 | (void) debugfs_create_file("u300_clocks", S_IFREG | S_IRUGO, | ||
1434 | NULL, NULL, &u300_clocks_operations); | ||
1435 | } | ||
1436 | #else | ||
1437 | static inline void init_clk_read_procfs(void) | ||
1438 | { | ||
1439 | } | ||
1440 | #endif | ||
1441 | |||
1442 | static int __init u300_clock_init(void) | ||
1443 | { | ||
1444 | u16 val; | ||
1445 | |||
1446 | /* | ||
1447 | * FIXME: shall all this powermanagement stuff really live here??? | ||
1448 | */ | ||
1449 | |||
1450 | /* Set system to run at PLL208, max performance, a known state. */ | ||
1451 | val = readw(U300_SYSCON_VBASE + U300_SYSCON_CCR); | ||
1452 | val &= ~U300_SYSCON_CCR_CLKING_PERFORMANCE_MASK; | ||
1453 | writew(val, U300_SYSCON_VBASE + U300_SYSCON_CCR); | ||
1454 | /* Wait for the PLL208 to lock if not locked in yet */ | ||
1455 | while (!(readw(U300_SYSCON_VBASE + U300_SYSCON_CSR) & | ||
1456 | U300_SYSCON_CSR_PLL208_LOCK_IND)); | ||
1457 | |||
1458 | /* Power management enable */ | ||
1459 | val = readw(U300_SYSCON_VBASE + U300_SYSCON_PMCR); | ||
1460 | val |= U300_SYSCON_PMCR_PWR_MGNT_ENABLE; | ||
1461 | writew(val, U300_SYSCON_VBASE + U300_SYSCON_PMCR); | ||
1462 | |||
1463 | clk_register(); | ||
1464 | |||
1465 | init_clk_read_procfs(); | ||
1466 | |||
1467 | /* | ||
1468 | * Some of these may be on when we boot the system so make sure they | ||
1469 | * are turned OFF. | ||
1470 | */ | ||
1471 | syscon_block_reset_enable(&timer_clk); | ||
1472 | timer_clk.disable(&timer_clk); | ||
1473 | |||
1474 | /* | ||
1475 | * These shall be turned on by default when we boot the system | ||
1476 | * so make sure they are ON. (Adding CPU here is a bit too much.) | ||
1477 | * These clocks will be claimed by drivers later. | ||
1478 | */ | ||
1479 | syscon_block_reset_disable(&semi_clk); | ||
1480 | syscon_block_reset_disable(&emif_clk); | ||
1481 | semi_clk.enable(&semi_clk); | ||
1482 | emif_clk.enable(&emif_clk); | ||
1483 | |||
1484 | return 0; | ||
1485 | } | ||
1486 | /* initialize clocking early to be available later in the boot */ | ||
1487 | core_initcall(u300_clock_init); | ||
diff --git a/arch/arm/mach-u300/clock.h b/arch/arm/mach-u300/clock.h new file mode 100644 index 000000000000..fc6d9ccfe7e3 --- /dev/null +++ b/arch/arm/mach-u300/clock.h | |||
@@ -0,0 +1,53 @@ | |||
1 | /* | ||
2 | * arch/arm/mach-u300/include/mach/clock.h | ||
3 | * | ||
4 | * Copyright (C) 2004 - 2005 Nokia corporation | ||
5 | * Written by Tuukka Tikkanen <tuukka.tikkanen@elektrobit.com> | ||
6 | * Based on clocks.h by Tony Lindgren, Gordon McNutt and RidgeRun, Inc | ||
7 | * Copyright (C) 2007-2009 ST-Ericsson AB | ||
8 | * Adopted to ST-Ericsson U300 platforms by | ||
9 | * Jonas Aaberg <jonas.aberg@stericsson.com> | ||
10 | * | ||
11 | * This program is free software; you can redistribute it and/or modify | ||
12 | * it under the terms of the GNU General Public License version 2 as | ||
13 | * published by the Free Software Foundation. | ||
14 | * | ||
15 | */ | ||
16 | |||
17 | #ifndef __MACH_CLOCK_H | ||
18 | #define __MACH_CLOCK_H | ||
19 | |||
20 | #include <linux/clk.h> | ||
21 | |||
22 | struct clk { | ||
23 | struct list_head node; | ||
24 | struct module *owner; | ||
25 | struct device *dev; | ||
26 | const char *name; | ||
27 | struct clk *parent; | ||
28 | |||
29 | spinlock_t lock; | ||
30 | unsigned long rate; | ||
31 | bool reset; | ||
32 | __u16 clk_val; | ||
33 | __s8 usecount; | ||
34 | __u32 res_reg; | ||
35 | __u16 res_mask; | ||
36 | |||
37 | bool hw_ctrld; | ||
38 | |||
39 | void (*recalc) (struct clk *); | ||
40 | int (*set_rate) (struct clk *, unsigned long); | ||
41 | unsigned long (*get_rate) (struct clk *); | ||
42 | unsigned long (*round_rate) (struct clk *, unsigned long); | ||
43 | void (*init) (struct clk *); | ||
44 | void (*enable) (struct clk *); | ||
45 | void (*disable) (struct clk *); | ||
46 | }; | ||
47 | |||
48 | void u300_clock_primecells(void); | ||
49 | void u300_unclock_primecells(void); | ||
50 | void u300_enable_intcon_clock(void); | ||
51 | void u300_enable_timer_clock(void); | ||
52 | |||
53 | #endif | ||
diff --git a/arch/arm/mach-u300/core.c b/arch/arm/mach-u300/core.c new file mode 100644 index 000000000000..89b3ccf35e1b --- /dev/null +++ b/arch/arm/mach-u300/core.c | |||
@@ -0,0 +1,649 @@ | |||
1 | /* | ||
2 | * | ||
3 | * arch/arm/mach-u300/core.c | ||
4 | * | ||
5 | * | ||
6 | * Copyright (C) 2007-2009 ST-Ericsson AB | ||
7 | * License terms: GNU General Public License (GPL) version 2 | ||
8 | * Core platform support, IRQ handling and device definitions. | ||
9 | * Author: Linus Walleij <linus.walleij@stericsson.com> | ||
10 | */ | ||
11 | #include <linux/kernel.h> | ||
12 | #include <linux/init.h> | ||
13 | #include <linux/spinlock.h> | ||
14 | #include <linux/interrupt.h> | ||
15 | #include <linux/bitops.h> | ||
16 | #include <linux/device.h> | ||
17 | #include <linux/mm.h> | ||
18 | #include <linux/termios.h> | ||
19 | #include <linux/amba/bus.h> | ||
20 | #include <linux/platform_device.h> | ||
21 | #include <linux/gpio.h> | ||
22 | |||
23 | #include <asm/types.h> | ||
24 | #include <asm/setup.h> | ||
25 | #include <asm/memory.h> | ||
26 | #include <asm/hardware/vic.h> | ||
27 | #include <asm/mach/map.h> | ||
28 | #include <asm/mach/irq.h> | ||
29 | |||
30 | #include <mach/hardware.h> | ||
31 | #include <mach/syscon.h> | ||
32 | |||
33 | #include "clock.h" | ||
34 | #include "mmc.h" | ||
35 | |||
36 | /* | ||
37 | * Static I/O mappings that are needed for booting the U300 platforms. The | ||
38 | * only things we need are the areas where we find the timer, syscon and | ||
39 | * intcon, since the remaining device drivers will map their own memory | ||
40 | * physical to virtual as the need arise. | ||
41 | */ | ||
42 | static struct map_desc u300_io_desc[] __initdata = { | ||
43 | { | ||
44 | .virtual = U300_SLOW_PER_VIRT_BASE, | ||
45 | .pfn = __phys_to_pfn(U300_SLOW_PER_PHYS_BASE), | ||
46 | .length = SZ_64K, | ||
47 | .type = MT_DEVICE, | ||
48 | }, | ||
49 | { | ||
50 | .virtual = U300_AHB_PER_VIRT_BASE, | ||
51 | .pfn = __phys_to_pfn(U300_AHB_PER_PHYS_BASE), | ||
52 | .length = SZ_32K, | ||
53 | .type = MT_DEVICE, | ||
54 | }, | ||
55 | { | ||
56 | .virtual = U300_FAST_PER_VIRT_BASE, | ||
57 | .pfn = __phys_to_pfn(U300_FAST_PER_PHYS_BASE), | ||
58 | .length = SZ_32K, | ||
59 | .type = MT_DEVICE, | ||
60 | }, | ||
61 | { | ||
62 | .virtual = 0xffff2000, /* TCM memory */ | ||
63 | .pfn = __phys_to_pfn(0xffff2000), | ||
64 | .length = SZ_16K, | ||
65 | .type = MT_DEVICE, | ||
66 | }, | ||
67 | |||
68 | /* | ||
69 | * This overlaps with the IRQ vectors etc at 0xffff0000, so these | ||
70 | * may have to be moved to 0x00000000 in order to use the ROM. | ||
71 | */ | ||
72 | /* | ||
73 | { | ||
74 | .virtual = U300_BOOTROM_VIRT_BASE, | ||
75 | .pfn = __phys_to_pfn(U300_BOOTROM_PHYS_BASE), | ||
76 | .length = SZ_64K, | ||
77 | .type = MT_ROM, | ||
78 | }, | ||
79 | */ | ||
80 | }; | ||
81 | |||
82 | void __init u300_map_io(void) | ||
83 | { | ||
84 | iotable_init(u300_io_desc, ARRAY_SIZE(u300_io_desc)); | ||
85 | } | ||
86 | |||
87 | /* | ||
88 | * Declaration of devices found on the U300 board and | ||
89 | * their respective memory locations. | ||
90 | */ | ||
91 | static struct amba_device uart0_device = { | ||
92 | .dev = { | ||
93 | .init_name = "uart0", /* Slow device at 0x3000 offset */ | ||
94 | .platform_data = NULL, | ||
95 | }, | ||
96 | .res = { | ||
97 | .start = U300_UART0_BASE, | ||
98 | .end = U300_UART0_BASE + SZ_4K - 1, | ||
99 | .flags = IORESOURCE_MEM, | ||
100 | }, | ||
101 | .irq = { IRQ_U300_UART0, NO_IRQ }, | ||
102 | }; | ||
103 | |||
104 | /* The U335 have an additional UART1 on the APP CPU */ | ||
105 | #ifdef CONFIG_MACH_U300_BS335 | ||
106 | static struct amba_device uart1_device = { | ||
107 | .dev = { | ||
108 | .init_name = "uart1", /* Fast device at 0x7000 offset */ | ||
109 | .platform_data = NULL, | ||
110 | }, | ||
111 | .res = { | ||
112 | .start = U300_UART1_BASE, | ||
113 | .end = U300_UART1_BASE + SZ_4K - 1, | ||
114 | .flags = IORESOURCE_MEM, | ||
115 | }, | ||
116 | .irq = { IRQ_U300_UART1, NO_IRQ }, | ||
117 | }; | ||
118 | #endif | ||
119 | |||
120 | static struct amba_device pl172_device = { | ||
121 | .dev = { | ||
122 | .init_name = "pl172", /* AHB device at 0x4000 offset */ | ||
123 | .platform_data = NULL, | ||
124 | }, | ||
125 | .res = { | ||
126 | .start = U300_EMIF_CFG_BASE, | ||
127 | .end = U300_EMIF_CFG_BASE + SZ_4K - 1, | ||
128 | .flags = IORESOURCE_MEM, | ||
129 | }, | ||
130 | }; | ||
131 | |||
132 | |||
133 | /* | ||
134 | * Everything within this next ifdef deals with external devices connected to | ||
135 | * the APP SPI bus. | ||
136 | */ | ||
137 | static struct amba_device pl022_device = { | ||
138 | .dev = { | ||
139 | .coherent_dma_mask = ~0, | ||
140 | .init_name = "pl022", /* Fast device at 0x6000 offset */ | ||
141 | }, | ||
142 | .res = { | ||
143 | .start = U300_SPI_BASE, | ||
144 | .end = U300_SPI_BASE + SZ_4K - 1, | ||
145 | .flags = IORESOURCE_MEM, | ||
146 | }, | ||
147 | .irq = {IRQ_U300_SPI, NO_IRQ }, | ||
148 | /* | ||
149 | * This device has a DMA channel but the Linux driver does not use | ||
150 | * it currently. | ||
151 | */ | ||
152 | }; | ||
153 | |||
154 | static struct amba_device mmcsd_device = { | ||
155 | .dev = { | ||
156 | .init_name = "mmci", /* Fast device at 0x1000 offset */ | ||
157 | .platform_data = NULL, /* Added later */ | ||
158 | }, | ||
159 | .res = { | ||
160 | .start = U300_MMCSD_BASE, | ||
161 | .end = U300_MMCSD_BASE + SZ_4K - 1, | ||
162 | .flags = IORESOURCE_MEM, | ||
163 | }, | ||
164 | .irq = {IRQ_U300_MMCSD_MCIINTR0, IRQ_U300_MMCSD_MCIINTR1 }, | ||
165 | /* | ||
166 | * This device has a DMA channel but the Linux driver does not use | ||
167 | * it currently. | ||
168 | */ | ||
169 | }; | ||
170 | |||
171 | /* | ||
172 | * The order of device declaration may be important, since some devices | ||
173 | * have dependencies on other devices being initialized first. | ||
174 | */ | ||
175 | static struct amba_device *amba_devs[] __initdata = { | ||
176 | &uart0_device, | ||
177 | #ifdef CONFIG_MACH_U300_BS335 | ||
178 | &uart1_device, | ||
179 | #endif | ||
180 | &pl022_device, | ||
181 | &pl172_device, | ||
182 | &mmcsd_device, | ||
183 | }; | ||
184 | |||
185 | /* Here follows a list of all hw resources that the platform devices | ||
186 | * allocate. Note, clock dependencies are not included | ||
187 | */ | ||
188 | |||
189 | static struct resource gpio_resources[] = { | ||
190 | { | ||
191 | .start = U300_GPIO_BASE, | ||
192 | .end = (U300_GPIO_BASE + SZ_4K - 1), | ||
193 | .flags = IORESOURCE_MEM, | ||
194 | }, | ||
195 | { | ||
196 | .name = "gpio0", | ||
197 | .start = IRQ_U300_GPIO_PORT0, | ||
198 | .end = IRQ_U300_GPIO_PORT0, | ||
199 | .flags = IORESOURCE_IRQ, | ||
200 | }, | ||
201 | { | ||
202 | .name = "gpio1", | ||
203 | .start = IRQ_U300_GPIO_PORT1, | ||
204 | .end = IRQ_U300_GPIO_PORT1, | ||
205 | .flags = IORESOURCE_IRQ, | ||
206 | }, | ||
207 | { | ||
208 | .name = "gpio2", | ||
209 | .start = IRQ_U300_GPIO_PORT2, | ||
210 | .end = IRQ_U300_GPIO_PORT2, | ||
211 | .flags = IORESOURCE_IRQ, | ||
212 | }, | ||
213 | #ifdef U300_COH901571_3 | ||
214 | { | ||
215 | .name = "gpio3", | ||
216 | .start = IRQ_U300_GPIO_PORT3, | ||
217 | .end = IRQ_U300_GPIO_PORT3, | ||
218 | .flags = IORESOURCE_IRQ, | ||
219 | }, | ||
220 | { | ||
221 | .name = "gpio4", | ||
222 | .start = IRQ_U300_GPIO_PORT4, | ||
223 | .end = IRQ_U300_GPIO_PORT4, | ||
224 | .flags = IORESOURCE_IRQ, | ||
225 | }, | ||
226 | #ifdef CONFIG_MACH_U300_BS335 | ||
227 | { | ||
228 | .name = "gpio5", | ||
229 | .start = IRQ_U300_GPIO_PORT5, | ||
230 | .end = IRQ_U300_GPIO_PORT5, | ||
231 | .flags = IORESOURCE_IRQ, | ||
232 | }, | ||
233 | { | ||
234 | .name = "gpio6", | ||
235 | .start = IRQ_U300_GPIO_PORT6, | ||
236 | .end = IRQ_U300_GPIO_PORT6, | ||
237 | .flags = IORESOURCE_IRQ, | ||
238 | }, | ||
239 | #endif /* CONFIG_MACH_U300_BS335 */ | ||
240 | #endif /* U300_COH901571_3 */ | ||
241 | }; | ||
242 | |||
243 | static struct resource keypad_resources[] = { | ||
244 | { | ||
245 | .start = U300_KEYPAD_BASE, | ||
246 | .end = U300_KEYPAD_BASE + SZ_4K - 1, | ||
247 | .flags = IORESOURCE_MEM, | ||
248 | }, | ||
249 | { | ||
250 | .name = "coh901461-press", | ||
251 | .start = IRQ_U300_KEYPAD_KEYBF, | ||
252 | .end = IRQ_U300_KEYPAD_KEYBF, | ||
253 | .flags = IORESOURCE_IRQ, | ||
254 | }, | ||
255 | { | ||
256 | .name = "coh901461-release", | ||
257 | .start = IRQ_U300_KEYPAD_KEYBR, | ||
258 | .end = IRQ_U300_KEYPAD_KEYBR, | ||
259 | .flags = IORESOURCE_IRQ, | ||
260 | }, | ||
261 | }; | ||
262 | |||
263 | static struct resource rtc_resources[] = { | ||
264 | { | ||
265 | .start = U300_RTC_BASE, | ||
266 | .end = U300_RTC_BASE + SZ_4K - 1, | ||
267 | .flags = IORESOURCE_MEM, | ||
268 | }, | ||
269 | { | ||
270 | .start = IRQ_U300_RTC, | ||
271 | .end = IRQ_U300_RTC, | ||
272 | .flags = IORESOURCE_IRQ, | ||
273 | }, | ||
274 | }; | ||
275 | |||
276 | /* | ||
277 | * Fsmc does have IRQs: #43 and #44 (NFIF and NFIF2) | ||
278 | * but these are not yet used by the driver. | ||
279 | */ | ||
280 | static struct resource fsmc_resources[] = { | ||
281 | { | ||
282 | .start = U300_NAND_IF_PHYS_BASE, | ||
283 | .end = U300_NAND_IF_PHYS_BASE + SZ_4K - 1, | ||
284 | .flags = IORESOURCE_MEM, | ||
285 | }, | ||
286 | }; | ||
287 | |||
288 | static struct resource i2c0_resources[] = { | ||
289 | { | ||
290 | .start = U300_I2C0_BASE, | ||
291 | .end = U300_I2C0_BASE + SZ_4K - 1, | ||
292 | .flags = IORESOURCE_MEM, | ||
293 | }, | ||
294 | { | ||
295 | .start = IRQ_U300_I2C0, | ||
296 | .end = IRQ_U300_I2C0, | ||
297 | .flags = IORESOURCE_IRQ, | ||
298 | }, | ||
299 | }; | ||
300 | |||
301 | static struct resource i2c1_resources[] = { | ||
302 | { | ||
303 | .start = U300_I2C1_BASE, | ||
304 | .end = U300_I2C1_BASE + SZ_4K - 1, | ||
305 | .flags = IORESOURCE_MEM, | ||
306 | }, | ||
307 | { | ||
308 | .start = IRQ_U300_I2C1, | ||
309 | .end = IRQ_U300_I2C1, | ||
310 | .flags = IORESOURCE_IRQ, | ||
311 | }, | ||
312 | |||
313 | }; | ||
314 | |||
315 | static struct resource wdog_resources[] = { | ||
316 | { | ||
317 | .start = U300_WDOG_BASE, | ||
318 | .end = U300_WDOG_BASE + SZ_4K - 1, | ||
319 | .flags = IORESOURCE_MEM, | ||
320 | }, | ||
321 | { | ||
322 | .start = IRQ_U300_WDOG, | ||
323 | .end = IRQ_U300_WDOG, | ||
324 | .flags = IORESOURCE_IRQ, | ||
325 | } | ||
326 | }; | ||
327 | |||
328 | /* TODO: These should be protected by suitable #ifdef's */ | ||
329 | static struct resource ave_resources[] = { | ||
330 | { | ||
331 | .name = "AVE3e I/O Area", | ||
332 | .start = U300_VIDEOENC_BASE, | ||
333 | .end = U300_VIDEOENC_BASE + SZ_512K - 1, | ||
334 | .flags = IORESOURCE_MEM, | ||
335 | }, | ||
336 | { | ||
337 | .name = "AVE3e IRQ0", | ||
338 | .start = IRQ_U300_VIDEO_ENC_0, | ||
339 | .end = IRQ_U300_VIDEO_ENC_0, | ||
340 | .flags = IORESOURCE_IRQ, | ||
341 | }, | ||
342 | { | ||
343 | .name = "AVE3e IRQ1", | ||
344 | .start = IRQ_U300_VIDEO_ENC_1, | ||
345 | .end = IRQ_U300_VIDEO_ENC_1, | ||
346 | .flags = IORESOURCE_IRQ, | ||
347 | }, | ||
348 | { | ||
349 | .name = "AVE3e Physmem Area", | ||
350 | .start = 0, /* 0 will be remapped to reserved memory */ | ||
351 | .end = SZ_1M - 1, | ||
352 | .flags = IORESOURCE_MEM, | ||
353 | }, | ||
354 | /* | ||
355 | * The AVE3e requires two regions of 256MB that it considers | ||
356 | * "invisible". The hardware will not be able to access these | ||
357 | * adresses, so they should never point to system RAM. | ||
358 | */ | ||
359 | { | ||
360 | .name = "AVE3e Reserved 0", | ||
361 | .start = 0xd0000000, | ||
362 | .end = 0xd0000000 + SZ_256M - 1, | ||
363 | .flags = IORESOURCE_MEM, | ||
364 | }, | ||
365 | { | ||
366 | .name = "AVE3e Reserved 1", | ||
367 | .start = 0xe0000000, | ||
368 | .end = 0xe0000000 + SZ_256M - 1, | ||
369 | .flags = IORESOURCE_MEM, | ||
370 | }, | ||
371 | }; | ||
372 | |||
373 | static struct platform_device wdog_device = { | ||
374 | .name = "wdog", | ||
375 | .id = -1, | ||
376 | .num_resources = ARRAY_SIZE(wdog_resources), | ||
377 | .resource = wdog_resources, | ||
378 | }; | ||
379 | |||
380 | static struct platform_device i2c0_device = { | ||
381 | .name = "stddci2c", | ||
382 | .id = 0, | ||
383 | .num_resources = ARRAY_SIZE(i2c0_resources), | ||
384 | .resource = i2c0_resources, | ||
385 | }; | ||
386 | |||
387 | static struct platform_device i2c1_device = { | ||
388 | .name = "stddci2c", | ||
389 | .id = 1, | ||
390 | .num_resources = ARRAY_SIZE(i2c1_resources), | ||
391 | .resource = i2c1_resources, | ||
392 | }; | ||
393 | |||
394 | static struct platform_device gpio_device = { | ||
395 | .name = "u300-gpio", | ||
396 | .id = -1, | ||
397 | .num_resources = ARRAY_SIZE(gpio_resources), | ||
398 | .resource = gpio_resources, | ||
399 | }; | ||
400 | |||
401 | static struct platform_device keypad_device = { | ||
402 | .name = "keypad", | ||
403 | .id = -1, | ||
404 | .num_resources = ARRAY_SIZE(keypad_resources), | ||
405 | .resource = keypad_resources, | ||
406 | }; | ||
407 | |||
408 | static struct platform_device rtc_device = { | ||
409 | .name = "rtc0", | ||
410 | .id = -1, | ||
411 | .num_resources = ARRAY_SIZE(rtc_resources), | ||
412 | .resource = rtc_resources, | ||
413 | }; | ||
414 | |||
415 | static struct platform_device fsmc_device = { | ||
416 | .name = "nandif", | ||
417 | .id = -1, | ||
418 | .num_resources = ARRAY_SIZE(fsmc_resources), | ||
419 | .resource = fsmc_resources, | ||
420 | }; | ||
421 | |||
422 | static struct platform_device ave_device = { | ||
423 | .name = "video_enc", | ||
424 | .id = -1, | ||
425 | .num_resources = ARRAY_SIZE(ave_resources), | ||
426 | .resource = ave_resources, | ||
427 | }; | ||
428 | |||
429 | /* | ||
430 | * Notice that AMBA devices are initialized before platform devices. | ||
431 | * | ||
432 | */ | ||
433 | static struct platform_device *platform_devs[] __initdata = { | ||
434 | &i2c0_device, | ||
435 | &i2c1_device, | ||
436 | &keypad_device, | ||
437 | &rtc_device, | ||
438 | &gpio_device, | ||
439 | &fsmc_device, | ||
440 | &wdog_device, | ||
441 | &ave_device | ||
442 | }; | ||
443 | |||
444 | |||
445 | /* | ||
446 | * Interrupts: the U300 platforms have two pl190 ARM PrimeCells connected | ||
447 | * together so some interrupts are connected to the first one and some | ||
448 | * to the second one. | ||
449 | */ | ||
450 | void __init u300_init_irq(void) | ||
451 | { | ||
452 | u32 mask[2] = {0, 0}; | ||
453 | int i; | ||
454 | |||
455 | for (i = 0; i < NR_IRQS; i++) | ||
456 | set_bit(i, (unsigned long *) &mask[0]); | ||
457 | u300_enable_intcon_clock(); | ||
458 | vic_init((void __iomem *) U300_INTCON0_VBASE, 0, mask[0], 0); | ||
459 | vic_init((void __iomem *) U300_INTCON1_VBASE, 32, mask[1], 0); | ||
460 | } | ||
461 | |||
462 | |||
463 | /* | ||
464 | * U300 platforms peripheral handling | ||
465 | */ | ||
466 | struct db_chip { | ||
467 | u16 chipid; | ||
468 | const char *name; | ||
469 | }; | ||
470 | |||
471 | /* | ||
472 | * This is a list of the Digital Baseband chips used in the U300 platform. | ||
473 | */ | ||
474 | static struct db_chip db_chips[] __initdata = { | ||
475 | { | ||
476 | .chipid = 0xb800, | ||
477 | .name = "DB3000", | ||
478 | }, | ||
479 | { | ||
480 | .chipid = 0xc000, | ||
481 | .name = "DB3100", | ||
482 | }, | ||
483 | { | ||
484 | .chipid = 0xc800, | ||
485 | .name = "DB3150", | ||
486 | }, | ||
487 | { | ||
488 | .chipid = 0xd800, | ||
489 | .name = "DB3200", | ||
490 | }, | ||
491 | { | ||
492 | .chipid = 0xe000, | ||
493 | .name = "DB3250", | ||
494 | }, | ||
495 | { | ||
496 | .chipid = 0xe800, | ||
497 | .name = "DB3210", | ||
498 | }, | ||
499 | { | ||
500 | .chipid = 0xf000, | ||
501 | .name = "DB3350 P1x", | ||
502 | }, | ||
503 | { | ||
504 | .chipid = 0xf100, | ||
505 | .name = "DB3350 P2x", | ||
506 | }, | ||
507 | { | ||
508 | .chipid = 0x0000, /* List terminator */ | ||
509 | .name = NULL, | ||
510 | } | ||
511 | }; | ||
512 | |||
513 | static void u300_init_check_chip(void) | ||
514 | { | ||
515 | |||
516 | u16 val; | ||
517 | struct db_chip *chip; | ||
518 | const char *chipname; | ||
519 | const char unknown[] = "UNKNOWN"; | ||
520 | |||
521 | /* Read out and print chip ID */ | ||
522 | val = readw(U300_SYSCON_VBASE + U300_SYSCON_CIDR); | ||
523 | /* This is in funky bigendian order... */ | ||
524 | val = (val & 0xFFU) << 8 | (val >> 8); | ||
525 | chip = db_chips; | ||
526 | chipname = unknown; | ||
527 | |||
528 | for ( ; chip->chipid; chip++) { | ||
529 | if (chip->chipid == (val & 0xFF00U)) { | ||
530 | chipname = chip->name; | ||
531 | break; | ||
532 | } | ||
533 | } | ||
534 | printk(KERN_INFO "Initializing U300 system on %s baseband chip " \ | ||
535 | "(chip ID 0x%04x)\n", chipname, val); | ||
536 | |||
537 | #ifdef CONFIG_MACH_U300_BS26 | ||
538 | if ((val & 0xFF00U) != 0xc800) { | ||
539 | printk(KERN_ERR "Platform configured for BS25/BS26 " \ | ||
540 | "with DB3150 but %s detected, expect problems!", | ||
541 | chipname); | ||
542 | } | ||
543 | #endif | ||
544 | #ifdef CONFIG_MACH_U300_BS330 | ||
545 | if ((val & 0xFF00U) != 0xd800) { | ||
546 | printk(KERN_ERR "Platform configured for BS330 " \ | ||
547 | "with DB3200 but %s detected, expect problems!", | ||
548 | chipname); | ||
549 | } | ||
550 | #endif | ||
551 | #ifdef CONFIG_MACH_U300_BS335 | ||
552 | if ((val & 0xFF00U) != 0xf000 && (val & 0xFF00U) != 0xf100) { | ||
553 | printk(KERN_ERR "Platform configured for BS365 " \ | ||
554 | " with DB3350 but %s detected, expect problems!", | ||
555 | chipname); | ||
556 | } | ||
557 | #endif | ||
558 | #ifdef CONFIG_MACH_U300_BS365 | ||
559 | if ((val & 0xFF00U) != 0xe800) { | ||
560 | printk(KERN_ERR "Platform configured for BS365 " \ | ||
561 | "with DB3210 but %s detected, expect problems!", | ||
562 | chipname); | ||
563 | } | ||
564 | #endif | ||
565 | |||
566 | |||
567 | } | ||
568 | |||
569 | /* | ||
570 | * Some devices and their resources require reserved physical memory from | ||
571 | * the end of the available RAM. This function traverses the list of devices | ||
572 | * and assigns actual adresses to these. | ||
573 | */ | ||
574 | static void __init u300_assign_physmem(void) | ||
575 | { | ||
576 | unsigned long curr_start = __pa(high_memory); | ||
577 | int i, j; | ||
578 | |||
579 | for (i = 0; i < ARRAY_SIZE(platform_devs); i++) { | ||
580 | for (j = 0; j < platform_devs[i]->num_resources; j++) { | ||
581 | struct resource *const res = | ||
582 | &platform_devs[i]->resource[j]; | ||
583 | |||
584 | if (IORESOURCE_MEM == res->flags && | ||
585 | 0 == res->start) { | ||
586 | res->start = curr_start; | ||
587 | res->end += curr_start; | ||
588 | curr_start += (res->end - res->start + 1); | ||
589 | |||
590 | printk(KERN_INFO "core.c: Mapping RAM " \ | ||
591 | "%#x-%#x to device %s:%s\n", | ||
592 | res->start, res->end, | ||
593 | platform_devs[i]->name, res->name); | ||
594 | } | ||
595 | } | ||
596 | } | ||
597 | } | ||
598 | |||
599 | void __init u300_init_devices(void) | ||
600 | { | ||
601 | int i; | ||
602 | u16 val; | ||
603 | |||
604 | /* Check what platform we run and print some status information */ | ||
605 | u300_init_check_chip(); | ||
606 | |||
607 | /* Set system to run at PLL208, max performance, a known state. */ | ||
608 | val = readw(U300_SYSCON_VBASE + U300_SYSCON_CCR); | ||
609 | val &= ~U300_SYSCON_CCR_CLKING_PERFORMANCE_MASK; | ||
610 | writew(val, U300_SYSCON_VBASE + U300_SYSCON_CCR); | ||
611 | /* Wait for the PLL208 to lock if not locked in yet */ | ||
612 | while (!(readw(U300_SYSCON_VBASE + U300_SYSCON_CSR) & | ||
613 | U300_SYSCON_CSR_PLL208_LOCK_IND)); | ||
614 | |||
615 | /* Register the AMBA devices in the AMBA bus abstraction layer */ | ||
616 | u300_clock_primecells(); | ||
617 | for (i = 0; i < ARRAY_SIZE(amba_devs); i++) { | ||
618 | struct amba_device *d = amba_devs[i]; | ||
619 | amba_device_register(d, &iomem_resource); | ||
620 | } | ||
621 | u300_unclock_primecells(); | ||
622 | |||
623 | u300_assign_physmem(); | ||
624 | |||
625 | /* Register the platform devices */ | ||
626 | platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs)); | ||
627 | |||
628 | #ifndef CONFIG_MACH_U300_SEMI_IS_SHARED | ||
629 | /* | ||
630 | * Enable SEMI self refresh. Self-refresh of the SDRAM is entered when | ||
631 | * both subsystems are requesting this mode. | ||
632 | * If we not share the Acc SDRAM, this is never the case. Therefore | ||
633 | * enable it here from the App side. | ||
634 | */ | ||
635 | val = readw(U300_SYSCON_VBASE + U300_SYSCON_SMCR) | | ||
636 | U300_SYSCON_SMCR_SEMI_SREFREQ_ENABLE; | ||
637 | writew(val, U300_SYSCON_VBASE + U300_SYSCON_SMCR); | ||
638 | #endif /* CONFIG_MACH_U300_SEMI_IS_SHARED */ | ||
639 | } | ||
640 | |||
641 | static int core_module_init(void) | ||
642 | { | ||
643 | /* | ||
644 | * This needs to be initialized later: it needs the input framework | ||
645 | * to be initialized first. | ||
646 | */ | ||
647 | return mmc_init(&mmcsd_device); | ||
648 | } | ||
649 | module_init(core_module_init); | ||
diff --git a/arch/arm/mach-u300/gpio.c b/arch/arm/mach-u300/gpio.c new file mode 100644 index 000000000000..308cdb197a92 --- /dev/null +++ b/arch/arm/mach-u300/gpio.c | |||
@@ -0,0 +1,703 @@ | |||
1 | /* | ||
2 | * | ||
3 | * arch/arm/mach-u300/gpio.c | ||
4 | * | ||
5 | * | ||
6 | * Copyright (C) 2007-2009 ST-Ericsson AB | ||
7 | * License terms: GNU General Public License (GPL) version 2 | ||
8 | * U300 GPIO module. | ||
9 | * This can driver either of the two basic GPIO cores | ||
10 | * available in the U300 platforms: | ||
11 | * COH 901 335 - Used in DB3150 (U300 1.0) and DB3200 (U330 1.0) | ||
12 | * COH 901 571/3 - Used in DB3210 (U365 2.0) and DB3350 (U335 1.0) | ||
13 | * Notice that you also have inline macros in <asm-arch/gpio.h> | ||
14 | * Author: Linus Walleij <linus.walleij@stericsson.com> | ||
15 | * Author: Jonas Aaberg <jonas.aberg@stericsson.com> | ||
16 | * | ||
17 | */ | ||
18 | #include <linux/module.h> | ||
19 | #include <linux/interrupt.h> | ||
20 | #include <linux/delay.h> | ||
21 | #include <linux/errno.h> | ||
22 | #include <linux/io.h> | ||
23 | #include <linux/clk.h> | ||
24 | #include <linux/err.h> | ||
25 | #include <linux/platform_device.h> | ||
26 | #include <linux/gpio.h> | ||
27 | |||
28 | /* Need access to SYSCON registers for PADmuxing */ | ||
29 | #include <mach/syscon.h> | ||
30 | |||
31 | #include "padmux.h" | ||
32 | |||
33 | /* Reference to GPIO block clock */ | ||
34 | static struct clk *clk; | ||
35 | |||
36 | /* Memory resource */ | ||
37 | static struct resource *memres; | ||
38 | static void __iomem *virtbase; | ||
39 | static struct device *gpiodev; | ||
40 | |||
41 | struct u300_gpio_port { | ||
42 | const char *name; | ||
43 | int irq; | ||
44 | int number; | ||
45 | }; | ||
46 | |||
47 | |||
48 | static struct u300_gpio_port gpio_ports[] = { | ||
49 | { | ||
50 | .name = "gpio0", | ||
51 | .number = 0, | ||
52 | }, | ||
53 | { | ||
54 | .name = "gpio1", | ||
55 | .number = 1, | ||
56 | }, | ||
57 | { | ||
58 | .name = "gpio2", | ||
59 | .number = 2, | ||
60 | }, | ||
61 | #ifdef U300_COH901571_3 | ||
62 | { | ||
63 | .name = "gpio3", | ||
64 | .number = 3, | ||
65 | }, | ||
66 | { | ||
67 | .name = "gpio4", | ||
68 | .number = 4, | ||
69 | }, | ||
70 | #ifdef CONFIG_MACH_U300_BS335 | ||
71 | { | ||
72 | .name = "gpio5", | ||
73 | .number = 5, | ||
74 | }, | ||
75 | { | ||
76 | .name = "gpio6", | ||
77 | .number = 6, | ||
78 | }, | ||
79 | #endif | ||
80 | #endif | ||
81 | |||
82 | }; | ||
83 | |||
84 | |||
85 | #ifdef U300_COH901571_3 | ||
86 | |||
87 | /* Default input value */ | ||
88 | #define DEFAULT_OUTPUT_LOW 0 | ||
89 | #define DEFAULT_OUTPUT_HIGH 1 | ||
90 | |||
91 | /* GPIO Pull-Up status */ | ||
92 | #define DISABLE_PULL_UP 0 | ||
93 | #define ENABLE_PULL_UP 1 | ||
94 | |||
95 | #define GPIO_NOT_USED 0 | ||
96 | #define GPIO_IN 1 | ||
97 | #define GPIO_OUT 2 | ||
98 | |||
99 | struct u300_gpio_configuration_data { | ||
100 | unsigned char pin_usage; | ||
101 | unsigned char default_output_value; | ||
102 | unsigned char pull_up; | ||
103 | }; | ||
104 | |||
105 | /* Initial configuration */ | ||
106 | const struct u300_gpio_configuration_data | ||
107 | u300_gpio_config[U300_GPIO_NUM_PORTS][U300_GPIO_PINS_PER_PORT] = { | ||
108 | #ifdef CONFIG_MACH_U300_BS335 | ||
109 | /* Port 0, pins 0-7 */ | ||
110 | { | ||
111 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
112 | {GPIO_OUT, DEFAULT_OUTPUT_HIGH, DISABLE_PULL_UP}, | ||
113 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
114 | {GPIO_OUT, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
115 | {GPIO_OUT, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
116 | {GPIO_OUT, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
117 | {GPIO_OUT, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
118 | {GPIO_OUT, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP} | ||
119 | }, | ||
120 | /* Port 1, pins 0-7 */ | ||
121 | { | ||
122 | {GPIO_OUT, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
123 | {GPIO_OUT, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
124 | {GPIO_OUT, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
125 | {GPIO_IN, DEFAULT_OUTPUT_LOW, ENABLE_PULL_UP}, | ||
126 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
127 | {GPIO_OUT, DEFAULT_OUTPUT_HIGH, DISABLE_PULL_UP}, | ||
128 | {GPIO_OUT, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
129 | {GPIO_OUT, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP} | ||
130 | }, | ||
131 | /* Port 2, pins 0-7 */ | ||
132 | { | ||
133 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
134 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
135 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
136 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
137 | {GPIO_OUT, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
138 | {GPIO_IN, DEFAULT_OUTPUT_LOW, ENABLE_PULL_UP}, | ||
139 | {GPIO_OUT, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
140 | {GPIO_IN, DEFAULT_OUTPUT_LOW, ENABLE_PULL_UP} | ||
141 | }, | ||
142 | /* Port 3, pins 0-7 */ | ||
143 | { | ||
144 | {GPIO_IN, DEFAULT_OUTPUT_LOW, ENABLE_PULL_UP}, | ||
145 | {GPIO_OUT, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
146 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
147 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
148 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
149 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
150 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
151 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP} | ||
152 | }, | ||
153 | /* Port 4, pins 0-7 */ | ||
154 | { | ||
155 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
156 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
157 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
158 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
159 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
160 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
161 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
162 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP} | ||
163 | }, | ||
164 | /* Port 5, pins 0-7 */ | ||
165 | { | ||
166 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
167 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
168 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
169 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
170 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
171 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
172 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
173 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP} | ||
174 | }, | ||
175 | /* Port 6, pind 0-7 */ | ||
176 | { | ||
177 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
178 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
179 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
180 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
181 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
182 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
183 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
184 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP} | ||
185 | } | ||
186 | #endif | ||
187 | |||
188 | #ifdef CONFIG_MACH_U300_BS365 | ||
189 | /* Port 0, pins 0-7 */ | ||
190 | { | ||
191 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
192 | {GPIO_OUT, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
193 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
194 | {GPIO_OUT, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
195 | {GPIO_OUT, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
196 | {GPIO_OUT, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
197 | {GPIO_IN, DEFAULT_OUTPUT_LOW, ENABLE_PULL_UP}, | ||
198 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP} | ||
199 | }, | ||
200 | /* Port 1, pins 0-7 */ | ||
201 | { | ||
202 | {GPIO_OUT, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
203 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
204 | {GPIO_OUT, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
205 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
206 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
207 | {GPIO_OUT, DEFAULT_OUTPUT_HIGH, DISABLE_PULL_UP}, | ||
208 | {GPIO_OUT, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
209 | {GPIO_OUT, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP} | ||
210 | }, | ||
211 | /* Port 2, pins 0-7 */ | ||
212 | { | ||
213 | {GPIO_IN, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
214 | {GPIO_IN, DEFAULT_OUTPUT_LOW, ENABLE_PULL_UP}, | ||
215 | {GPIO_OUT, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
216 | {GPIO_OUT, DEFAULT_OUTPUT_LOW, DISABLE_PULL_UP}, | ||
217 | {GPIO_IN, DEFAULT_OUTPUT_LOW, ENABLE_PULL_UP}, | ||
218 | {GPIO_IN, DEFAULT_OUTPUT_LOW, ENABLE_PULL_UP}, | ||
219 | {GPIO_IN, DEFAULT_OUTPUT_LOW, ENABLE_PULL_UP}, | ||
220 | {GPIO_IN, DEFAULT_OUTPUT_LOW, ENABLE_PULL_UP} | ||
221 | }, | ||
222 | /* Port 3, pins 0-7 */ | ||
223 | { | ||
224 | {GPIO_IN, DEFAULT_OUTPUT_LOW, ENABLE_PULL_UP}, | ||
225 | {GPIO_IN, DEFAULT_OUTPUT_LOW, ENABLE_PULL_UP}, | ||
226 | {GPIO_IN, DEFAULT_OUTPUT_LOW, ENABLE_PULL_UP}, | ||
227 | {GPIO_IN, DEFAULT_OUTPUT_LOW, ENABLE_PULL_UP}, | ||
228 | {GPIO_IN, DEFAULT_OUTPUT_LOW, ENABLE_PULL_UP}, | ||
229 | {GPIO_IN, DEFAULT_OUTPUT_LOW, ENABLE_PULL_UP}, | ||
230 | {GPIO_IN, DEFAULT_OUTPUT_LOW, ENABLE_PULL_UP}, | ||
231 | {GPIO_IN, DEFAULT_OUTPUT_LOW, ENABLE_PULL_UP} | ||
232 | }, | ||
233 | /* Port 4, pins 0-7 */ | ||
234 | { | ||
235 | {GPIO_IN, DEFAULT_OUTPUT_LOW, ENABLE_PULL_UP}, | ||
236 | {GPIO_IN, DEFAULT_OUTPUT_LOW, ENABLE_PULL_UP}, | ||
237 | {GPIO_IN, DEFAULT_OUTPUT_LOW, ENABLE_PULL_UP}, | ||
238 | {GPIO_IN, DEFAULT_OUTPUT_LOW, ENABLE_PULL_UP}, | ||
239 | /* These 4 pins doesn't exist on DB3210 */ | ||
240 | {GPIO_OUT, DEFAULT_OUTPUT_LOW, ENABLE_PULL_UP}, | ||
241 | {GPIO_OUT, DEFAULT_OUTPUT_LOW, ENABLE_PULL_UP}, | ||
242 | {GPIO_OUT, DEFAULT_OUTPUT_LOW, ENABLE_PULL_UP}, | ||
243 | {GPIO_OUT, DEFAULT_OUTPUT_LOW, ENABLE_PULL_UP} | ||
244 | } | ||
245 | #endif | ||
246 | }; | ||
247 | #endif | ||
248 | |||
249 | |||
250 | /* No users == we can power down GPIO */ | ||
251 | static int gpio_users; | ||
252 | |||
253 | struct gpio_struct { | ||
254 | int (*callback)(void *); | ||
255 | void *data; | ||
256 | int users; | ||
257 | }; | ||
258 | |||
259 | static struct gpio_struct gpio_pin[U300_GPIO_MAX]; | ||
260 | |||
261 | /* | ||
262 | * Let drivers register callback in order to get notified when there is | ||
263 | * an interrupt on the gpio pin | ||
264 | */ | ||
265 | int gpio_register_callback(unsigned gpio, int (*func)(void *arg), void *data) | ||
266 | { | ||
267 | if (gpio_pin[gpio].callback) | ||
268 | dev_warn(gpiodev, "%s: WARNING: callback already " | ||
269 | "registered for gpio pin#%d\n", __func__, gpio); | ||
270 | gpio_pin[gpio].callback = func; | ||
271 | gpio_pin[gpio].data = data; | ||
272 | |||
273 | return 0; | ||
274 | } | ||
275 | EXPORT_SYMBOL(gpio_register_callback); | ||
276 | |||
277 | int gpio_unregister_callback(unsigned gpio) | ||
278 | { | ||
279 | if (!gpio_pin[gpio].callback) | ||
280 | dev_warn(gpiodev, "%s: WARNING: callback already " | ||
281 | "unregistered for gpio pin#%d\n", __func__, gpio); | ||
282 | gpio_pin[gpio].callback = NULL; | ||
283 | gpio_pin[gpio].data = NULL; | ||
284 | |||
285 | return 0; | ||
286 | } | ||
287 | EXPORT_SYMBOL(gpio_unregister_callback); | ||
288 | |||
289 | int gpio_request(unsigned gpio, const char *label) | ||
290 | { | ||
291 | if (gpio_pin[gpio].users) | ||
292 | return -EINVAL; | ||
293 | else | ||
294 | gpio_pin[gpio].users++; | ||
295 | |||
296 | gpio_users++; | ||
297 | |||
298 | return 0; | ||
299 | } | ||
300 | EXPORT_SYMBOL(gpio_request); | ||
301 | |||
302 | void gpio_free(unsigned gpio) | ||
303 | { | ||
304 | gpio_users--; | ||
305 | gpio_pin[gpio].users--; | ||
306 | if (unlikely(gpio_pin[gpio].users < 0)) { | ||
307 | dev_warn(gpiodev, "warning: gpio#%d release mismatch\n", | ||
308 | gpio); | ||
309 | gpio_pin[gpio].users = 0; | ||
310 | } | ||
311 | |||
312 | return; | ||
313 | } | ||
314 | EXPORT_SYMBOL(gpio_free); | ||
315 | |||
316 | /* This returns zero or nonzero */ | ||
317 | int gpio_get_value(unsigned gpio) | ||
318 | { | ||
319 | return readl(virtbase + U300_GPIO_PXPDIR + | ||
320 | PIN_TO_PORT(gpio) * U300_GPIO_PORTX_SPACING) & (1 << (gpio & 0x07)); | ||
321 | } | ||
322 | EXPORT_SYMBOL(gpio_get_value); | ||
323 | |||
324 | /* | ||
325 | * We hope that the compiler will optimize away the unused branch | ||
326 | * in case "value" is a constant | ||
327 | */ | ||
328 | void gpio_set_value(unsigned gpio, int value) | ||
329 | { | ||
330 | u32 val; | ||
331 | unsigned long flags; | ||
332 | |||
333 | local_irq_save(flags); | ||
334 | if (value) { | ||
335 | /* set */ | ||
336 | val = readl(virtbase + U300_GPIO_PXPDOR + | ||
337 | PIN_TO_PORT(gpio) * U300_GPIO_PORTX_SPACING) | ||
338 | & (1 << (gpio & 0x07)); | ||
339 | writel(val | (1 << (gpio & 0x07)), virtbase + | ||
340 | U300_GPIO_PXPDOR + | ||
341 | PIN_TO_PORT(gpio) * U300_GPIO_PORTX_SPACING); | ||
342 | } else { | ||
343 | /* clear */ | ||
344 | val = readl(virtbase + U300_GPIO_PXPDOR + | ||
345 | PIN_TO_PORT(gpio) * U300_GPIO_PORTX_SPACING) | ||
346 | & (1 << (gpio & 0x07)); | ||
347 | writel(val & ~(1 << (gpio & 0x07)), virtbase + | ||
348 | U300_GPIO_PXPDOR + | ||
349 | PIN_TO_PORT(gpio) * U300_GPIO_PORTX_SPACING); | ||
350 | } | ||
351 | local_irq_restore(flags); | ||
352 | } | ||
353 | EXPORT_SYMBOL(gpio_set_value); | ||
354 | |||
355 | int gpio_direction_input(unsigned gpio) | ||
356 | { | ||
357 | unsigned long flags; | ||
358 | u32 val; | ||
359 | |||
360 | if (gpio > U300_GPIO_MAX) | ||
361 | return -EINVAL; | ||
362 | |||
363 | local_irq_save(flags); | ||
364 | val = readl(virtbase + U300_GPIO_PXPCR + PIN_TO_PORT(gpio) * | ||
365 | U300_GPIO_PORTX_SPACING); | ||
366 | /* Mask out this pin*/ | ||
367 | val &= ~(U300_GPIO_PXPCR_PIN_MODE_MASK << ((gpio & 0x07) << 1)); | ||
368 | /* This is not needed since it sets the bits to zero.*/ | ||
369 | /* val |= (U300_GPIO_PXPCR_PIN_MODE_INPUT << (gpio*2)); */ | ||
370 | writel(val, virtbase + U300_GPIO_PXPCR + PIN_TO_PORT(gpio) * | ||
371 | U300_GPIO_PORTX_SPACING); | ||
372 | local_irq_restore(flags); | ||
373 | return 0; | ||
374 | } | ||
375 | EXPORT_SYMBOL(gpio_direction_input); | ||
376 | |||
377 | int gpio_direction_output(unsigned gpio, int value) | ||
378 | { | ||
379 | unsigned long flags; | ||
380 | u32 val; | ||
381 | |||
382 | if (gpio > U300_GPIO_MAX) | ||
383 | return -EINVAL; | ||
384 | |||
385 | local_irq_save(flags); | ||
386 | val = readl(virtbase + U300_GPIO_PXPCR + PIN_TO_PORT(gpio) * | ||
387 | U300_GPIO_PORTX_SPACING); | ||
388 | /* Mask out this pin */ | ||
389 | val &= ~(U300_GPIO_PXPCR_PIN_MODE_MASK << ((gpio & 0x07) << 1)); | ||
390 | /* | ||
391 | * FIXME: configure for push/pull, open drain or open source per pin | ||
392 | * in setup. The current driver will only support push/pull. | ||
393 | */ | ||
394 | val |= (U300_GPIO_PXPCR_PIN_MODE_OUTPUT_PUSH_PULL | ||
395 | << ((gpio & 0x07) << 1)); | ||
396 | writel(val, virtbase + U300_GPIO_PXPCR + PIN_TO_PORT(gpio) * | ||
397 | U300_GPIO_PORTX_SPACING); | ||
398 | gpio_set_value(gpio, value); | ||
399 | local_irq_restore(flags); | ||
400 | return 0; | ||
401 | } | ||
402 | EXPORT_SYMBOL(gpio_direction_output); | ||
403 | |||
404 | /* | ||
405 | * Enable an IRQ, edge is rising edge (!= 0) or falling edge (==0). | ||
406 | */ | ||
407 | void enable_irq_on_gpio_pin(unsigned gpio, int edge) | ||
408 | { | ||
409 | u32 val; | ||
410 | unsigned long flags; | ||
411 | local_irq_save(flags); | ||
412 | |||
413 | val = readl(virtbase + U300_GPIO_PXIEN + PIN_TO_PORT(gpio) * | ||
414 | U300_GPIO_PORTX_SPACING); | ||
415 | val |= (1 << (gpio & 0x07)); | ||
416 | writel(val, virtbase + U300_GPIO_PXIEN + PIN_TO_PORT(gpio) * | ||
417 | U300_GPIO_PORTX_SPACING); | ||
418 | val = readl(virtbase + U300_GPIO_PXICR + PIN_TO_PORT(gpio) * | ||
419 | U300_GPIO_PORTX_SPACING); | ||
420 | if (edge) | ||
421 | val |= (1 << (gpio & 0x07)); | ||
422 | else | ||
423 | val &= ~(1 << (gpio & 0x07)); | ||
424 | writel(val, virtbase + U300_GPIO_PXICR + PIN_TO_PORT(gpio) * | ||
425 | U300_GPIO_PORTX_SPACING); | ||
426 | local_irq_restore(flags); | ||
427 | } | ||
428 | EXPORT_SYMBOL(enable_irq_on_gpio_pin); | ||
429 | |||
430 | void disable_irq_on_gpio_pin(unsigned gpio) | ||
431 | { | ||
432 | u32 val; | ||
433 | unsigned long flags; | ||
434 | |||
435 | local_irq_save(flags); | ||
436 | val = readl(virtbase + U300_GPIO_PXIEN + PIN_TO_PORT(gpio) * | ||
437 | U300_GPIO_PORTX_SPACING); | ||
438 | val &= ~(1 << (gpio & 0x07)); | ||
439 | writel(val, virtbase + U300_GPIO_PXIEN + PIN_TO_PORT(gpio) * | ||
440 | U300_GPIO_PORTX_SPACING); | ||
441 | local_irq_restore(flags); | ||
442 | } | ||
443 | EXPORT_SYMBOL(disable_irq_on_gpio_pin); | ||
444 | |||
445 | /* Enable (value == 0) or disable (value == 1) internal pullup */ | ||
446 | void gpio_pullup(unsigned gpio, int value) | ||
447 | { | ||
448 | u32 val; | ||
449 | unsigned long flags; | ||
450 | |||
451 | local_irq_save(flags); | ||
452 | if (value) { | ||
453 | val = readl(virtbase + U300_GPIO_PXPER + PIN_TO_PORT(gpio) * | ||
454 | U300_GPIO_PORTX_SPACING); | ||
455 | writel(val | (1 << (gpio & 0x07)), virtbase + U300_GPIO_PXPER + | ||
456 | PIN_TO_PORT(gpio) * U300_GPIO_PORTX_SPACING); | ||
457 | } else { | ||
458 | val = readl(virtbase + U300_GPIO_PXPER + PIN_TO_PORT(gpio) * | ||
459 | U300_GPIO_PORTX_SPACING); | ||
460 | writel(val & ~(1 << (gpio & 0x07)), virtbase + U300_GPIO_PXPER + | ||
461 | PIN_TO_PORT(gpio) * U300_GPIO_PORTX_SPACING); | ||
462 | } | ||
463 | local_irq_restore(flags); | ||
464 | } | ||
465 | EXPORT_SYMBOL(gpio_pullup); | ||
466 | |||
467 | static irqreturn_t gpio_irq_handler(int irq, void *dev_id) | ||
468 | { | ||
469 | struct u300_gpio_port *port = dev_id; | ||
470 | u32 val; | ||
471 | int pin; | ||
472 | |||
473 | /* Read event register */ | ||
474 | val = readl(virtbase + U300_GPIO_PXIEV + port->number * | ||
475 | U300_GPIO_PORTX_SPACING); | ||
476 | /* Mask with enable register */ | ||
477 | val &= readl(virtbase + U300_GPIO_PXIEV + port->number * | ||
478 | U300_GPIO_PORTX_SPACING); | ||
479 | /* Mask relevant bits */ | ||
480 | val &= U300_GPIO_PXIEV_ALL_IRQ_EVENT_MASK; | ||
481 | /* ACK IRQ (clear event) */ | ||
482 | writel(val, virtbase + U300_GPIO_PXIEV + port->number * | ||
483 | U300_GPIO_PORTX_SPACING); | ||
484 | /* Print message */ | ||
485 | while (val != 0) { | ||
486 | unsigned gpio; | ||
487 | |||
488 | pin = __ffs(val); | ||
489 | /* mask off this pin */ | ||
490 | val &= ~(1 << pin); | ||
491 | gpio = (port->number << 3) + pin; | ||
492 | |||
493 | if (gpio_pin[gpio].callback) | ||
494 | (void)gpio_pin[gpio].callback(gpio_pin[gpio].data); | ||
495 | else | ||
496 | dev_dbg(gpiodev, "stray GPIO IRQ on line %d\n", | ||
497 | gpio); | ||
498 | } | ||
499 | return IRQ_HANDLED; | ||
500 | } | ||
501 | |||
502 | static void gpio_set_initial_values(void) | ||
503 | { | ||
504 | #ifdef U300_COH901571_3 | ||
505 | int i, j; | ||
506 | unsigned long flags; | ||
507 | u32 val; | ||
508 | |||
509 | /* Write default values to all pins */ | ||
510 | for (i = 0; i < U300_GPIO_NUM_PORTS; i++) { | ||
511 | val = 0; | ||
512 | for (j = 0; j < 8; j++) | ||
513 | val |= (u32) (u300_gpio_config[i][j].default_output_value != DEFAULT_OUTPUT_LOW) << j; | ||
514 | local_irq_save(flags); | ||
515 | writel(val, virtbase + U300_GPIO_PXPDOR + i * U300_GPIO_PORTX_SPACING); | ||
516 | local_irq_restore(flags); | ||
517 | } | ||
518 | |||
519 | /* | ||
520 | * Put all pins that are set to either 'GPIO_OUT' or 'GPIO_NOT_USED' | ||
521 | * to output and 'GPIO_IN' to input for each port. And initalize | ||
522 | * default value on outputs. | ||
523 | */ | ||
524 | for (i = 0; i < U300_GPIO_NUM_PORTS; i++) { | ||
525 | for (j = 0; j < U300_GPIO_PINS_PER_PORT; j++) { | ||
526 | local_irq_save(flags); | ||
527 | val = readl(virtbase + U300_GPIO_PXPCR + | ||
528 | i * U300_GPIO_PORTX_SPACING); | ||
529 | /* Mask out this pin */ | ||
530 | val &= ~(U300_GPIO_PXPCR_PIN_MODE_MASK << (j << 1)); | ||
531 | |||
532 | if (u300_gpio_config[i][j].pin_usage != GPIO_IN) | ||
533 | val |= (U300_GPIO_PXPCR_PIN_MODE_OUTPUT_PUSH_PULL << (j << 1)); | ||
534 | writel(val, virtbase + U300_GPIO_PXPCR + | ||
535 | i * U300_GPIO_PORTX_SPACING); | ||
536 | local_irq_restore(flags); | ||
537 | } | ||
538 | } | ||
539 | |||
540 | /* Enable or disable the internal pull-ups in the GPIO ASIC block */ | ||
541 | for (i = 0; i < U300_GPIO_MAX; i++) { | ||
542 | val = 0; | ||
543 | for (j = 0; j < 8; j++) | ||
544 | val |= (u32)((u300_gpio_config[i][j].pull_up == DISABLE_PULL_UP)) << j; | ||
545 | local_irq_save(flags); | ||
546 | writel(val, virtbase + U300_GPIO_PXPER + i * U300_GPIO_PORTX_SPACING); | ||
547 | local_irq_restore(flags); | ||
548 | } | ||
549 | #endif | ||
550 | } | ||
551 | |||
552 | static int __init gpio_probe(struct platform_device *pdev) | ||
553 | { | ||
554 | u32 val; | ||
555 | int err = 0; | ||
556 | int i; | ||
557 | int num_irqs; | ||
558 | |||
559 | gpiodev = &pdev->dev; | ||
560 | memset(gpio_pin, 0, sizeof(gpio_pin)); | ||
561 | |||
562 | /* Get GPIO clock */ | ||
563 | clk = clk_get(&pdev->dev, NULL); | ||
564 | if (IS_ERR(clk)) { | ||
565 | err = PTR_ERR(clk); | ||
566 | dev_err(gpiodev, "could not get GPIO clock\n"); | ||
567 | goto err_no_clk; | ||
568 | } | ||
569 | err = clk_enable(clk); | ||
570 | if (err) { | ||
571 | dev_err(gpiodev, "could not enable GPIO clock\n"); | ||
572 | goto err_no_clk_enable; | ||
573 | } | ||
574 | |||
575 | memres = platform_get_resource(pdev, IORESOURCE_MEM, 0); | ||
576 | if (!memres) | ||
577 | goto err_no_resource; | ||
578 | |||
579 | if (request_mem_region(memres->start, memres->end - memres->start, "GPIO Controller") | ||
580 | == NULL) { | ||
581 | err = -ENODEV; | ||
582 | goto err_no_ioregion; | ||
583 | } | ||
584 | |||
585 | virtbase = ioremap(memres->start, resource_size(memres)); | ||
586 | if (!virtbase) { | ||
587 | err = -ENOMEM; | ||
588 | goto err_no_ioremap; | ||
589 | } | ||
590 | dev_info(gpiodev, "remapped 0x%08x to %p\n", | ||
591 | memres->start, virtbase); | ||
592 | |||
593 | #ifdef U300_COH901335 | ||
594 | dev_info(gpiodev, "initializing GPIO Controller COH 901 335\n"); | ||
595 | /* Turn on the GPIO block */ | ||
596 | writel(U300_GPIO_CR_BLOCK_CLOCK_ENABLE, virtbase + U300_GPIO_CR); | ||
597 | #endif | ||
598 | |||
599 | #ifdef U300_COH901571_3 | ||
600 | dev_info(gpiodev, "initializing GPIO Controller COH 901 571/3\n"); | ||
601 | val = readl(virtbase + U300_GPIO_CR); | ||
602 | dev_info(gpiodev, "COH901571/3 block version: %d, " \ | ||
603 | "number of cores: %d\n", | ||
604 | ((val & 0x0000FE00) >> 9), | ||
605 | ((val & 0x000001FC) >> 2)); | ||
606 | writel(U300_GPIO_CR_BLOCK_CLKRQ_ENABLE, virtbase + U300_GPIO_CR); | ||
607 | #endif | ||
608 | |||
609 | /* Set up some padmuxing here */ | ||
610 | #ifdef CONFIG_MMC | ||
611 | pmx_set_mission_mode_mmc(); | ||
612 | #endif | ||
613 | #ifdef CONFIG_SPI_PL022 | ||
614 | pmx_set_mission_mode_spi(); | ||
615 | #endif | ||
616 | |||
617 | gpio_set_initial_values(); | ||
618 | |||
619 | for (num_irqs = 0 ; num_irqs < U300_GPIO_NUM_PORTS; num_irqs++) { | ||
620 | |||
621 | gpio_ports[num_irqs].irq = | ||
622 | platform_get_irq_byname(pdev, | ||
623 | gpio_ports[num_irqs].name); | ||
624 | |||
625 | err = request_irq(gpio_ports[num_irqs].irq, | ||
626 | gpio_irq_handler, IRQF_DISABLED, | ||
627 | gpio_ports[num_irqs].name, | ||
628 | &gpio_ports[num_irqs]); | ||
629 | if (err) { | ||
630 | dev_err(gpiodev, "cannot allocate IRQ for %s!\n", | ||
631 | gpio_ports[num_irqs].name); | ||
632 | goto err_no_irq; | ||
633 | } | ||
634 | /* Turns off PortX_irq_force */ | ||
635 | writel(0x0, virtbase + U300_GPIO_PXIFR + | ||
636 | num_irqs * U300_GPIO_PORTX_SPACING); | ||
637 | } | ||
638 | |||
639 | return 0; | ||
640 | |||
641 | err_no_irq: | ||
642 | for (i = 0; i < num_irqs; i++) | ||
643 | free_irq(gpio_ports[i].irq, &gpio_ports[i]); | ||
644 | iounmap(virtbase); | ||
645 | err_no_ioremap: | ||
646 | release_mem_region(memres->start, memres->end - memres->start); | ||
647 | err_no_ioregion: | ||
648 | err_no_resource: | ||
649 | clk_disable(clk); | ||
650 | err_no_clk_enable: | ||
651 | clk_put(clk); | ||
652 | err_no_clk: | ||
653 | dev_info(gpiodev, "module ERROR:%d\n", err); | ||
654 | return err; | ||
655 | } | ||
656 | |||
657 | static int __exit gpio_remove(struct platform_device *pdev) | ||
658 | { | ||
659 | int i; | ||
660 | |||
661 | /* Turn off the GPIO block */ | ||
662 | writel(0x00000000U, virtbase + U300_GPIO_CR); | ||
663 | for (i = 0 ; i < U300_GPIO_NUM_PORTS; i++) | ||
664 | free_irq(gpio_ports[i].irq, &gpio_ports[i]); | ||
665 | iounmap(virtbase); | ||
666 | release_mem_region(memres->start, memres->end - memres->start); | ||
667 | clk_disable(clk); | ||
668 | clk_put(clk); | ||
669 | return 0; | ||
670 | } | ||
671 | |||
672 | static struct platform_driver gpio_driver = { | ||
673 | .driver = { | ||
674 | .name = "u300-gpio", | ||
675 | }, | ||
676 | .remove = __exit_p(gpio_remove), | ||
677 | }; | ||
678 | |||
679 | |||
680 | static int __init u300_gpio_init(void) | ||
681 | { | ||
682 | return platform_driver_probe(&gpio_driver, gpio_probe); | ||
683 | } | ||
684 | |||
685 | static void __exit u300_gpio_exit(void) | ||
686 | { | ||
687 | platform_driver_unregister(&gpio_driver); | ||
688 | } | ||
689 | |||
690 | arch_initcall(u300_gpio_init); | ||
691 | module_exit(u300_gpio_exit); | ||
692 | |||
693 | MODULE_AUTHOR("Linus Walleij <linus.walleij@stericsson.com>"); | ||
694 | |||
695 | #ifdef U300_COH901571_3 | ||
696 | MODULE_DESCRIPTION("ST-Ericsson AB COH 901 571/3 GPIO driver"); | ||
697 | #endif | ||
698 | |||
699 | #ifdef U300_COH901335 | ||
700 | MODULE_DESCRIPTION("ST-Ericsson AB COH 901 335 GPIO driver"); | ||
701 | #endif | ||
702 | |||
703 | MODULE_LICENSE("GPL"); | ||
diff --git a/arch/arm/mach-u300/include/mach/clkdev.h b/arch/arm/mach-u300/include/mach/clkdev.h new file mode 100644 index 000000000000..92e3cc872c66 --- /dev/null +++ b/arch/arm/mach-u300/include/mach/clkdev.h | |||
@@ -0,0 +1,7 @@ | |||
1 | #ifndef __MACH_CLKDEV_H | ||
2 | #define __MACH_CLKDEV_H | ||
3 | |||
4 | int __clk_get(struct clk *clk); | ||
5 | void __clk_put(struct clk *clk); | ||
6 | |||
7 | #endif | ||
diff --git a/arch/arm/mach-u300/include/mach/debug-macro.S b/arch/arm/mach-u300/include/mach/debug-macro.S new file mode 100644 index 000000000000..f3a1cbbeeab3 --- /dev/null +++ b/arch/arm/mach-u300/include/mach/debug-macro.S | |||
@@ -0,0 +1,22 @@ | |||
1 | /* | ||
2 | * | ||
3 | * arch-arm/mach-u300/include/mach/debug-macro.S | ||
4 | * | ||
5 | * | ||
6 | * Copyright (C) 2006-2009 ST-Ericsson AB | ||
7 | * License terms: GNU General Public License (GPL) version 2 | ||
8 | * Debugging macro include header. | ||
9 | * Author: Linus Walleij <linus.walleij@stericsson.com> | ||
10 | */ | ||
11 | #include <mach/hardware.h> | ||
12 | |||
13 | .macro addruart,rx | ||
14 | /* If we move the adress using MMU, use this. */ | ||
15 | mrc p15, 0, \rx, c1, c0 | ||
16 | tst \rx, #1 @ MMU enabled? | ||
17 | ldreq \rx, = U300_SLOW_PER_PHYS_BASE @ MMU off, physical address | ||
18 | ldrne \rx, = U300_SLOW_PER_VIRT_BASE @ MMU on, virtual address | ||
19 | orr \rx, \rx, #0x00003000 | ||
20 | .endm | ||
21 | |||
22 | #include <asm/hardware/debug-pl01x.S> | ||
diff --git a/arch/arm/mach-u300/include/mach/entry-macro.S b/arch/arm/mach-u300/include/mach/entry-macro.S new file mode 100644 index 000000000000..20731ae39d38 --- /dev/null +++ b/arch/arm/mach-u300/include/mach/entry-macro.S | |||
@@ -0,0 +1,40 @@ | |||
1 | /* | ||
2 | * | ||
3 | * arch-arm/mach-u300/include/mach/entry-macro.S | ||
4 | * | ||
5 | * | ||
6 | * Copyright (C) 2006-2009 ST-Ericsson AB | ||
7 | * License terms: GNU General Public License (GPL) version 2 | ||
8 | * Low-level IRQ helper macros for ST-Ericsson U300 | ||
9 | * Author: Linus Walleij <linus.walleij@stericsson.com> | ||
10 | */ | ||
11 | #include <mach/hardware.h> | ||
12 | #include <asm/hardware/vic.h> | ||
13 | |||
14 | .macro disable_fiq | ||
15 | .endm | ||
16 | |||
17 | .macro get_irqnr_preamble, base, tmp | ||
18 | .endm | ||
19 | |||
20 | .macro arch_ret_to_user, tmp1, tmp2 | ||
21 | .endm | ||
22 | |||
23 | .macro get_irqnr_and_base, irqnr, irqstat, base, tmp | ||
24 | ldr \base, = U300_AHB_PER_VIRT_BASE-U300_AHB_PER_PHYS_BASE+U300_INTCON0_BASE | ||
25 | ldr \irqstat, [\base, #VIC_IRQ_STATUS] @ get masked status | ||
26 | mov \irqnr, #0 | ||
27 | teq \irqstat, #0 | ||
28 | bne 1002f | ||
29 | 1001: ldr \base, = U300_AHB_PER_VIRT_BASE-U300_AHB_PER_PHYS_BASE+U300_INTCON1_BASE | ||
30 | ldr \irqstat, [\base, #VIC_IRQ_STATUS] @ get masked status | ||
31 | mov \irqnr, #32 | ||
32 | teq \irqstat, #0 | ||
33 | beq 1003f | ||
34 | 1002: tst \irqstat, #1 | ||
35 | bne 1003f | ||
36 | add \irqnr, \irqnr, #1 | ||
37 | movs \irqstat, \irqstat, lsr #1 | ||
38 | bne 1002b | ||
39 | 1003: /* EQ will be set if no irqs pending */ | ||
40 | .endm | ||
diff --git a/arch/arm/mach-u300/include/mach/gpio.h b/arch/arm/mach-u300/include/mach/gpio.h new file mode 100644 index 000000000000..c8174128d7eb --- /dev/null +++ b/arch/arm/mach-u300/include/mach/gpio.h | |||
@@ -0,0 +1,290 @@ | |||
1 | /* | ||
2 | * | ||
3 | * arch/arm/mach-u300/include/mach/gpio.h | ||
4 | * | ||
5 | * | ||
6 | * Copyright (C) 2007-2009 ST-Ericsson AB | ||
7 | * License terms: GNU General Public License (GPL) version 2 | ||
8 | * GPIO block resgister definitions and inline macros for | ||
9 | * U300 GPIO COH 901 335 or COH 901 571/3 | ||
10 | * Author: Linus Walleij <linus.walleij@stericsson.com> | ||
11 | */ | ||
12 | |||
13 | #ifndef __MACH_U300_GPIO_H | ||
14 | #define __MACH_U300_GPIO_H | ||
15 | |||
16 | #include <linux/kernel.h> | ||
17 | #include <linux/io.h> | ||
18 | #include <mach/hardware.h> | ||
19 | #include <asm/irq.h> | ||
20 | |||
21 | /* Switch type depending on platform/chip variant */ | ||
22 | #if defined(CONFIG_MACH_U300_BS2X) || defined(CONFIG_MACH_U300_BS330) | ||
23 | #define U300_COH901335 | ||
24 | #endif | ||
25 | #if defined(CONFIG_MACH_U300_BS365) || defined(CONFIG_MACH_U300_BS335) | ||
26 | #define U300_COH901571_3 | ||
27 | #endif | ||
28 | |||
29 | /* Get base address for regs here */ | ||
30 | #include "u300-regs.h" | ||
31 | /* IRQ numbers */ | ||
32 | #include "irqs.h" | ||
33 | |||
34 | /* | ||
35 | * This is the GPIO block definitions. GPIO (General Purpose I/O) can be | ||
36 | * used for anything, and often is. The event/enable etc figures are for | ||
37 | * the lowermost pin (pin 0 on each port), shift this left to match your | ||
38 | * pin if you're gonna use these values. | ||
39 | */ | ||
40 | #ifdef U300_COH901335 | ||
41 | #define U300_GPIO_PORTX_SPACING (0x1C) | ||
42 | /* Port X Pin Data Register 32bit, this is both input and output (R/W) */ | ||
43 | #define U300_GPIO_PXPDIR (0x00) | ||
44 | #define U300_GPIO_PXPDOR (0x00) | ||
45 | /* Port X Pin Config Register 32bit (R/W) */ | ||
46 | #define U300_GPIO_PXPCR (0x04) | ||
47 | #define U300_GPIO_PXPCR_ALL_PINS_MODE_MASK (0x0000FFFFUL) | ||
48 | #define U300_GPIO_PXPCR_PIN_MODE_MASK (0x00000003UL) | ||
49 | #define U300_GPIO_PXPCR_PIN_MODE_SHIFT (0x00000002UL) | ||
50 | #define U300_GPIO_PXPCR_PIN_MODE_INPUT (0x00000000UL) | ||
51 | #define U300_GPIO_PXPCR_PIN_MODE_OUTPUT_PUSH_PULL (0x00000001UL) | ||
52 | #define U300_GPIO_PXPCR_PIN_MODE_OUTPUT_OPEN_DRAIN (0x00000002UL) | ||
53 | #define U300_GPIO_PXPCR_PIN_MODE_OUTPUT_OPEN_SOURCE (0x00000003UL) | ||
54 | /* Port X Interrupt Event Register 32bit (R/W) */ | ||
55 | #define U300_GPIO_PXIEV (0x08) | ||
56 | #define U300_GPIO_PXIEV_ALL_IRQ_EVENT_MASK (0x000000FFUL) | ||
57 | #define U300_GPIO_PXIEV_IRQ_EVENT (0x00000001UL) | ||
58 | /* Port X Interrupt Enable Register 32bit (R/W) */ | ||
59 | #define U300_GPIO_PXIEN (0x0C) | ||
60 | #define U300_GPIO_PXIEN_ALL_IRQ_ENABLE_MASK (0x000000FFUL) | ||
61 | #define U300_GPIO_PXIEN_IRQ_ENABLE (0x00000001UL) | ||
62 | /* Port X Interrupt Force Register 32bit (R/W) */ | ||
63 | #define U300_GPIO_PXIFR (0x10) | ||
64 | #define U300_GPIO_PXIFR_ALL_IRQ_FORCE_MASK (0x000000FFUL) | ||
65 | #define U300_GPIO_PXIFR_IRQ_FORCE (0x00000001UL) | ||
66 | /* Port X Interrupt Config Register 32bit (R/W) */ | ||
67 | #define U300_GPIO_PXICR (0x14) | ||
68 | #define U300_GPIO_PXICR_ALL_IRQ_CONFIG_MASK (0x000000FFUL) | ||
69 | #define U300_GPIO_PXICR_IRQ_CONFIG_MASK (0x00000001UL) | ||
70 | #define U300_GPIO_PXICR_IRQ_CONFIG_FALLING_EDGE (0x00000000UL) | ||
71 | #define U300_GPIO_PXICR_IRQ_CONFIG_RISING_EDGE (0x00000001UL) | ||
72 | /* Port X Pull-up Enable Register 32bit (R/W) */ | ||
73 | #define U300_GPIO_PXPER (0x18) | ||
74 | #define U300_GPIO_PXPER_ALL_PULL_UP_DISABLE_MASK (0x000000FFUL) | ||
75 | #define U300_GPIO_PXPER_PULL_UP_DISABLE (0x00000001UL) | ||
76 | /* Control Register 32bit (R/W) */ | ||
77 | #define U300_GPIO_CR (0x54) | ||
78 | #define U300_GPIO_CR_BLOCK_CLOCK_ENABLE (0x00000001UL) | ||
79 | /* three ports of 8 bits each = GPIO pins 0..23 */ | ||
80 | #define U300_GPIO_NUM_PORTS 3 | ||
81 | #define U300_GPIO_PINS_PER_PORT 8 | ||
82 | #define U300_GPIO_MAX (U300_GPIO_PINS_PER_PORT * U300_GPIO_NUM_PORTS - 1) | ||
83 | #endif | ||
84 | |||
85 | #ifdef U300_COH901571_3 | ||
86 | /* | ||
87 | * Control Register 32bit (R/W) | ||
88 | * bit 15-9 (mask 0x0000FE00) contains the number of cores. 8*cores | ||
89 | * gives the number of GPIO pins. | ||
90 | * bit 8-2 (mask 0x000001FC) contains the core version ID. | ||
91 | */ | ||
92 | #define U300_GPIO_CR (0x00) | ||
93 | #define U300_GPIO_CR_SYNC_SEL_ENABLE (0x00000002UL) | ||
94 | #define U300_GPIO_CR_BLOCK_CLKRQ_ENABLE (0x00000001UL) | ||
95 | #define U300_GPIO_PORTX_SPACING (0x30) | ||
96 | /* Port X Pin Data INPUT Register 32bit (R/W) */ | ||
97 | #define U300_GPIO_PXPDIR (0x04) | ||
98 | /* Port X Pin Data OUTPUT Register 32bit (R/W) */ | ||
99 | #define U300_GPIO_PXPDOR (0x08) | ||
100 | /* Port X Pin Config Register 32bit (R/W) */ | ||
101 | #define U300_GPIO_PXPCR (0x0C) | ||
102 | #define U300_GPIO_PXPCR_ALL_PINS_MODE_MASK (0x0000FFFFUL) | ||
103 | #define U300_GPIO_PXPCR_PIN_MODE_MASK (0x00000003UL) | ||
104 | #define U300_GPIO_PXPCR_PIN_MODE_SHIFT (0x00000002UL) | ||
105 | #define U300_GPIO_PXPCR_PIN_MODE_INPUT (0x00000000UL) | ||
106 | #define U300_GPIO_PXPCR_PIN_MODE_OUTPUT_PUSH_PULL (0x00000001UL) | ||
107 | #define U300_GPIO_PXPCR_PIN_MODE_OUTPUT_OPEN_DRAIN (0x00000002UL) | ||
108 | #define U300_GPIO_PXPCR_PIN_MODE_OUTPUT_OPEN_SOURCE (0x00000003UL) | ||
109 | /* Port X Pull-up Enable Register 32bit (R/W) */ | ||
110 | #define U300_GPIO_PXPER (0x10) | ||
111 | #define U300_GPIO_PXPER_ALL_PULL_UP_DISABLE_MASK (0x000000FFUL) | ||
112 | #define U300_GPIO_PXPER_PULL_UP_DISABLE (0x00000001UL) | ||
113 | /* Port X Interrupt Event Register 32bit (R/W) */ | ||
114 | #define U300_GPIO_PXIEV (0x14) | ||
115 | #define U300_GPIO_PXIEV_ALL_IRQ_EVENT_MASK (0x000000FFUL) | ||
116 | #define U300_GPIO_PXIEV_IRQ_EVENT (0x00000001UL) | ||
117 | /* Port X Interrupt Enable Register 32bit (R/W) */ | ||
118 | #define U300_GPIO_PXIEN (0x18) | ||
119 | #define U300_GPIO_PXIEN_ALL_IRQ_ENABLE_MASK (0x000000FFUL) | ||
120 | #define U300_GPIO_PXIEN_IRQ_ENABLE (0x00000001UL) | ||
121 | /* Port X Interrupt Force Register 32bit (R/W) */ | ||
122 | #define U300_GPIO_PXIFR (0x1C) | ||
123 | #define U300_GPIO_PXIFR_ALL_IRQ_FORCE_MASK (0x000000FFUL) | ||
124 | #define U300_GPIO_PXIFR_IRQ_FORCE (0x00000001UL) | ||
125 | /* Port X Interrupt Config Register 32bit (R/W) */ | ||
126 | #define U300_GPIO_PXICR (0x20) | ||
127 | #define U300_GPIO_PXICR_ALL_IRQ_CONFIG_MASK (0x000000FFUL) | ||
128 | #define U300_GPIO_PXICR_IRQ_CONFIG_MASK (0x00000001UL) | ||
129 | #define U300_GPIO_PXICR_IRQ_CONFIG_FALLING_EDGE (0x00000000UL) | ||
130 | #define U300_GPIO_PXICR_IRQ_CONFIG_RISING_EDGE (0x00000001UL) | ||
131 | #ifdef CONFIG_MACH_U300_BS335 | ||
132 | /* seven ports of 8 bits each = GPIO pins 0..55 */ | ||
133 | #define U300_GPIO_NUM_PORTS 7 | ||
134 | #else | ||
135 | /* five ports of 8 bits each = GPIO pins 0..39 */ | ||
136 | #define U300_GPIO_NUM_PORTS 5 | ||
137 | #endif | ||
138 | #define U300_GPIO_PINS_PER_PORT 8 | ||
139 | #define U300_GPIO_MAX (U300_GPIO_PINS_PER_PORT * U300_GPIO_NUM_PORTS - 1) | ||
140 | #endif | ||
141 | |||
142 | /* | ||
143 | * Individual pin assignments for the B26/S26. Notice that the | ||
144 | * actual usage of these pins depends on the PAD MUX settings, that | ||
145 | * is why the same number can potentially appear several times. | ||
146 | * In the reference design each pin is only used for one purpose. | ||
147 | * These were determined by inspecting the B26/S26 schematic: | ||
148 | * 2/1911-ROA 128 1603 | ||
149 | */ | ||
150 | #ifdef CONFIG_MACH_U300_BS2X | ||
151 | #define U300_GPIO_PIN_UART_RX 0 | ||
152 | #define U300_GPIO_PIN_UART_TX 1 | ||
153 | #define U300_GPIO_PIN_GPIO02 2 /* Unrouted */ | ||
154 | #define U300_GPIO_PIN_GPIO03 3 /* Unrouted */ | ||
155 | #define U300_GPIO_PIN_CAM_SLEEP 4 | ||
156 | #define U300_GPIO_PIN_CAM_REG_EN 5 | ||
157 | #define U300_GPIO_PIN_GPIO06 6 /* Unrouted */ | ||
158 | #define U300_GPIO_PIN_GPIO07 7 /* Unrouted */ | ||
159 | |||
160 | #define U300_GPIO_PIN_GPIO08 8 /* Service point SP2321 */ | ||
161 | #define U300_GPIO_PIN_GPIO09 9 /* Service point SP2322 */ | ||
162 | #define U300_GPIO_PIN_PHFSENSE 10 /* Headphone jack sensing */ | ||
163 | #define U300_GPIO_PIN_MMC_CLKRET 11 /* Clock return from MMC/SD card */ | ||
164 | #define U300_GPIO_PIN_MMC_CD 12 /* MMC Card insertion detection */ | ||
165 | #define U300_GPIO_PIN_FLIPSENSE 13 /* Mechanical flip sensing */ | ||
166 | #define U300_GPIO_PIN_GPIO14 14 /* DSP JTAG Port RTCK */ | ||
167 | #define U300_GPIO_PIN_GPIO15 15 /* Unrouted */ | ||
168 | |||
169 | #define U300_GPIO_PIN_GPIO16 16 /* Unrouted */ | ||
170 | #define U300_GPIO_PIN_GPIO17 17 /* Unrouted */ | ||
171 | #define U300_GPIO_PIN_GPIO18 18 /* Unrouted */ | ||
172 | #define U300_GPIO_PIN_GPIO19 19 /* Unrouted */ | ||
173 | #define U300_GPIO_PIN_GPIO20 20 /* Unrouted */ | ||
174 | #define U300_GPIO_PIN_GPIO21 21 /* Unrouted */ | ||
175 | #define U300_GPIO_PIN_GPIO22 22 /* Unrouted */ | ||
176 | #define U300_GPIO_PIN_GPIO23 23 /* Unrouted */ | ||
177 | #endif | ||
178 | |||
179 | /* | ||
180 | * Individual pin assignments for the B330/S330 and B365/S365. | ||
181 | * Notice that the actual usage of these pins depends on the | ||
182 | * PAD MUX settings, that is why the same number can potentially | ||
183 | * appear several times. In the reference design each pin is only | ||
184 | * used for one purpose. These were determined by inspecting the | ||
185 | * S365 schematic. | ||
186 | */ | ||
187 | #if defined(CONFIG_MACH_U300_BS330) || defined(CONFIG_MACH_U300_BS365) || \ | ||
188 | defined(CONFIG_MACH_U300_BS335) | ||
189 | #define U300_GPIO_PIN_UART_RX 0 | ||
190 | #define U300_GPIO_PIN_UART_TX 1 | ||
191 | #define U300_GPIO_PIN_UART_CTS 2 | ||
192 | #define U300_GPIO_PIN_UART_RTS 3 | ||
193 | #define U300_GPIO_PIN_CAM_MAIN_STANDBY 4 /* Camera MAIN standby */ | ||
194 | #define U300_GPIO_PIN_GPIO05 5 /* Unrouted */ | ||
195 | #define U300_GPIO_PIN_MS_CD 6 /* Memory Stick Card insertion */ | ||
196 | #define U300_GPIO_PIN_GPIO07 7 /* Test point TP2430 */ | ||
197 | |||
198 | #define U300_GPIO_PIN_GPIO08 8 /* Test point TP2437 */ | ||
199 | #define U300_GPIO_PIN_GPIO09 9 /* Test point TP2431 */ | ||
200 | #define U300_GPIO_PIN_GPIO10 10 /* Test point TP2432 */ | ||
201 | #define U300_GPIO_PIN_MMC_CLKRET 11 /* Clock return from MMC/SD card */ | ||
202 | #define U300_GPIO_PIN_MMC_CD 12 /* MMC Card insertion detection */ | ||
203 | #define U300_GPIO_PIN_CAM_SUB_STANDBY 13 /* Camera SUB standby */ | ||
204 | #define U300_GPIO_PIN_GPIO14 14 /* Test point TP2436 */ | ||
205 | #define U300_GPIO_PIN_GPIO15 15 /* Unrouted */ | ||
206 | |||
207 | #define U300_GPIO_PIN_GPIO16 16 /* Test point TP2438 */ | ||
208 | #define U300_GPIO_PIN_PHFSENSE 17 /* Headphone jack sensing */ | ||
209 | #define U300_GPIO_PIN_GPIO18 18 /* Test point TP2439 */ | ||
210 | #define U300_GPIO_PIN_GPIO19 19 /* Routed somewhere */ | ||
211 | #define U300_GPIO_PIN_GPIO20 20 /* Unrouted */ | ||
212 | #define U300_GPIO_PIN_GPIO21 21 /* Unrouted */ | ||
213 | #define U300_GPIO_PIN_GPIO22 22 /* Unrouted */ | ||
214 | #define U300_GPIO_PIN_GPIO23 23 /* Unrouted */ | ||
215 | |||
216 | #define U300_GPIO_PIN_GPIO24 24 /* Unrouted */ | ||
217 | #define U300_GPIO_PIN_GPIO25 25 /* Unrouted */ | ||
218 | #define U300_GPIO_PIN_GPIO26 26 /* Unrouted */ | ||
219 | #define U300_GPIO_PIN_GPIO27 27 /* Unrouted */ | ||
220 | #define U300_GPIO_PIN_GPIO28 28 /* Unrouted */ | ||
221 | #define U300_GPIO_PIN_GPIO29 29 /* Unrouted */ | ||
222 | #define U300_GPIO_PIN_GPIO30 30 /* Unrouted */ | ||
223 | #define U300_GPIO_PIN_GPIO31 31 /* Unrouted */ | ||
224 | |||
225 | #define U300_GPIO_PIN_GPIO32 32 /* Unrouted */ | ||
226 | #define U300_GPIO_PIN_GPIO33 33 /* Unrouted */ | ||
227 | #define U300_GPIO_PIN_GPIO34 34 /* Unrouted */ | ||
228 | #define U300_GPIO_PIN_GPIO35 35 /* Unrouted */ | ||
229 | #define U300_GPIO_PIN_GPIO36 36 /* Unrouted */ | ||
230 | #define U300_GPIO_PIN_GPIO37 37 /* Unrouted */ | ||
231 | #define U300_GPIO_PIN_GPIO38 38 /* Unrouted */ | ||
232 | #define U300_GPIO_PIN_GPIO39 39 /* Unrouted */ | ||
233 | |||
234 | #ifdef CONFIG_MACH_U300_BS335 | ||
235 | |||
236 | #define U300_GPIO_PIN_GPIO40 40 /* Unrouted */ | ||
237 | #define U300_GPIO_PIN_GPIO41 41 /* Unrouted */ | ||
238 | #define U300_GPIO_PIN_GPIO42 42 /* Unrouted */ | ||
239 | #define U300_GPIO_PIN_GPIO43 43 /* Unrouted */ | ||
240 | #define U300_GPIO_PIN_GPIO44 44 /* Unrouted */ | ||
241 | #define U300_GPIO_PIN_GPIO45 45 /* Unrouted */ | ||
242 | #define U300_GPIO_PIN_GPIO46 46 /* Unrouted */ | ||
243 | #define U300_GPIO_PIN_GPIO47 47 /* Unrouted */ | ||
244 | |||
245 | #define U300_GPIO_PIN_GPIO48 48 /* Unrouted */ | ||
246 | #define U300_GPIO_PIN_GPIO49 49 /* Unrouted */ | ||
247 | #define U300_GPIO_PIN_GPIO50 50 /* Unrouted */ | ||
248 | #define U300_GPIO_PIN_GPIO51 51 /* Unrouted */ | ||
249 | #define U300_GPIO_PIN_GPIO52 52 /* Unrouted */ | ||
250 | #define U300_GPIO_PIN_GPIO53 53 /* Unrouted */ | ||
251 | #define U300_GPIO_PIN_GPIO54 54 /* Unrouted */ | ||
252 | #define U300_GPIO_PIN_GPIO55 55 /* Unrouted */ | ||
253 | #endif | ||
254 | |||
255 | #endif | ||
256 | |||
257 | /* translates a pin number to a port number */ | ||
258 | #define PIN_TO_PORT(val) (val >> 3) | ||
259 | |||
260 | /* These can be found in arch/arm/mach-u300/gpio.c */ | ||
261 | extern int gpio_request(unsigned gpio, const char *label); | ||
262 | extern void gpio_free(unsigned gpio); | ||
263 | extern int gpio_direction_input(unsigned gpio); | ||
264 | extern int gpio_direction_output(unsigned gpio, int value); | ||
265 | extern int gpio_register_callback(unsigned gpio, | ||
266 | int (*func)(void *arg), | ||
267 | void *); | ||
268 | extern int gpio_unregister_callback(unsigned gpio); | ||
269 | extern void enable_irq_on_gpio_pin(unsigned gpio, int edge); | ||
270 | extern void disable_irq_on_gpio_pin(unsigned gpio); | ||
271 | extern void gpio_pullup(unsigned gpio, int value); | ||
272 | extern int gpio_get_value(unsigned gpio); | ||
273 | extern void gpio_set_value(unsigned gpio, int value); | ||
274 | |||
275 | /* wrappers to sleep-enable the previous two functions */ | ||
276 | static inline unsigned gpio_to_irq(unsigned gpio) | ||
277 | { | ||
278 | return PIN_TO_PORT(gpio) + IRQ_U300_GPIO_PORT0; | ||
279 | } | ||
280 | |||
281 | static inline unsigned irq_to_gpio(unsigned irq) | ||
282 | { | ||
283 | /* | ||
284 | * FIXME: This is no 1-1 mapping at all, it points to the | ||
285 | * whole block of 8 pins. | ||
286 | */ | ||
287 | return (irq - IRQ_U300_GPIO_PORT0) << 3; | ||
288 | } | ||
289 | |||
290 | #endif | ||
diff --git a/arch/arm/mach-u300/include/mach/hardware.h b/arch/arm/mach-u300/include/mach/hardware.h new file mode 100644 index 000000000000..b99d4ce0ac2b --- /dev/null +++ b/arch/arm/mach-u300/include/mach/hardware.h | |||
@@ -0,0 +1,5 @@ | |||
1 | /* | ||
2 | * arch/arm/mach-u300/include/mach/hardware.h | ||
3 | */ | ||
4 | #include <asm/sizes.h> | ||
5 | #include <mach/u300-regs.h> | ||
diff --git a/arch/arm/mach-u300/include/mach/io.h b/arch/arm/mach-u300/include/mach/io.h new file mode 100644 index 000000000000..5d6b4c13b3a0 --- /dev/null +++ b/arch/arm/mach-u300/include/mach/io.h | |||
@@ -0,0 +1,20 @@ | |||
1 | /* | ||
2 | * | ||
3 | * arch/arm/mach-u300/include/mach/io.h | ||
4 | * | ||
5 | * | ||
6 | * Copyright (C) 2006-2009 ST-Ericsson AB | ||
7 | * License terms: GNU General Public License (GPL) version 2 | ||
8 | * Dummy IO map for being able to use writew()/readw(), | ||
9 | * writel()/readw() and similar accessor functions. | ||
10 | * Author: Linus Walleij <linus.walleij@stericsson.com> | ||
11 | */ | ||
12 | #ifndef __MACH_IO_H | ||
13 | #define __MACH_IO_H | ||
14 | |||
15 | #define IO_SPACE_LIMIT 0xffffffff | ||
16 | |||
17 | #define __io(a) __typesafe_io(a) | ||
18 | #define __mem_pci(a) (a) | ||
19 | |||
20 | #endif | ||
diff --git a/arch/arm/mach-u300/include/mach/irqs.h b/arch/arm/mach-u300/include/mach/irqs.h new file mode 100644 index 000000000000..a6867b12773e --- /dev/null +++ b/arch/arm/mach-u300/include/mach/irqs.h | |||
@@ -0,0 +1,114 @@ | |||
1 | /* | ||
2 | * | ||
3 | * arch/arm/mach-u300/include/mach/irqs.h | ||
4 | * | ||
5 | * | ||
6 | * Copyright (C) 2006-2009 ST-Ericsson AB | ||
7 | * License terms: GNU General Public License (GPL) version 2 | ||
8 | * IRQ channel definitions for the U300 platforms. | ||
9 | * Author: Linus Walleij <linus.walleij@stericsson.com> | ||
10 | */ | ||
11 | |||
12 | #ifndef __MACH_IRQS_H | ||
13 | #define __MACH_IRQS_H | ||
14 | |||
15 | #define IRQ_U300_INTCON0_START 0 | ||
16 | #define IRQ_U300_INTCON1_START 32 | ||
17 | /* These are on INTCON0 - 30 lines */ | ||
18 | #define IRQ_U300_IRQ0_EXT 0 | ||
19 | #define IRQ_U300_IRQ1_EXT 1 | ||
20 | #define IRQ_U300_DMA 2 | ||
21 | #define IRQ_U300_VIDEO_ENC_0 3 | ||
22 | #define IRQ_U300_VIDEO_ENC_1 4 | ||
23 | #define IRQ_U300_AAIF_RX 5 | ||
24 | #define IRQ_U300_AAIF_TX 6 | ||
25 | #define IRQ_U300_AAIF_VGPIO 7 | ||
26 | #define IRQ_U300_AAIF_WAKEUP 8 | ||
27 | #define IRQ_U300_PCM_I2S0_FRAME 9 | ||
28 | #define IRQ_U300_PCM_I2S0_FIFO 10 | ||
29 | #define IRQ_U300_PCM_I2S1_FRAME 11 | ||
30 | #define IRQ_U300_PCM_I2S1_FIFO 12 | ||
31 | #define IRQ_U300_XGAM_GAMCON 13 | ||
32 | #define IRQ_U300_XGAM_CDI 14 | ||
33 | #define IRQ_U300_XGAM_CDICON 15 | ||
34 | #if defined(CONFIG_MACH_U300_BS2X) || defined(CONFIG_MACH_U300_BS330) | ||
35 | /* MMIACC not used on the DB3210 or DB3350 chips */ | ||
36 | #define IRQ_U300_XGAM_MMIACC 16 | ||
37 | #endif | ||
38 | #define IRQ_U300_XGAM_PDI 17 | ||
39 | #define IRQ_U300_XGAM_PDICON 18 | ||
40 | #define IRQ_U300_XGAM_GAMEACC 19 | ||
41 | #define IRQ_U300_XGAM_MCIDCT 20 | ||
42 | #define IRQ_U300_APEX 21 | ||
43 | #define IRQ_U300_UART0 22 | ||
44 | #define IRQ_U300_SPI 23 | ||
45 | #define IRQ_U300_TIMER_APP_OS 24 | ||
46 | #define IRQ_U300_TIMER_APP_DD 25 | ||
47 | #define IRQ_U300_TIMER_APP_GP1 26 | ||
48 | #define IRQ_U300_TIMER_APP_GP2 27 | ||
49 | #define IRQ_U300_TIMER_OS 28 | ||
50 | #define IRQ_U300_TIMER_MS 29 | ||
51 | #define IRQ_U300_KEYPAD_KEYBF 30 | ||
52 | #define IRQ_U300_KEYPAD_KEYBR 31 | ||
53 | /* These are on INTCON1 - 32 lines */ | ||
54 | #define IRQ_U300_GPIO_PORT0 32 | ||
55 | #define IRQ_U300_GPIO_PORT1 33 | ||
56 | #define IRQ_U300_GPIO_PORT2 34 | ||
57 | |||
58 | #if defined(CONFIG_MACH_U300_BS2X) || defined(CONFIG_MACH_U300_BS330) || \ | ||
59 | defined(CONFIG_MACH_U300_BS335) | ||
60 | /* These are for DB3150, DB3200 and DB3350 */ | ||
61 | #define IRQ_U300_WDOG 35 | ||
62 | #define IRQ_U300_EVHIST 36 | ||
63 | #define IRQ_U300_MSPRO 37 | ||
64 | #define IRQ_U300_MMCSD_MCIINTR0 38 | ||
65 | #define IRQ_U300_MMCSD_MCIINTR1 39 | ||
66 | #define IRQ_U300_I2C0 40 | ||
67 | #define IRQ_U300_I2C1 41 | ||
68 | #define IRQ_U300_RTC 42 | ||
69 | #define IRQ_U300_NFIF 43 | ||
70 | #define IRQ_U300_NFIF2 44 | ||
71 | #endif | ||
72 | |||
73 | /* DB3150 and DB3200 have only 45 IRQs */ | ||
74 | #if defined(CONFIG_MACH_U300_BS2X) || defined(CONFIG_MACH_U300_BS330) | ||
75 | #define U300_NR_IRQS 45 | ||
76 | #endif | ||
77 | |||
78 | /* The DB3350-specific interrupt lines */ | ||
79 | #ifdef CONFIG_MACH_U300_BS335 | ||
80 | #define IRQ_U300_ISP_F0 45 | ||
81 | #define IRQ_U300_ISP_F1 46 | ||
82 | #define IRQ_U300_ISP_F2 47 | ||
83 | #define IRQ_U300_ISP_F3 48 | ||
84 | #define IRQ_U300_ISP_F4 49 | ||
85 | #define IRQ_U300_GPIO_PORT3 50 | ||
86 | #define IRQ_U300_SYSCON_PLL_LOCK 51 | ||
87 | #define IRQ_U300_UART1 52 | ||
88 | #define IRQ_U300_GPIO_PORT4 53 | ||
89 | #define IRQ_U300_GPIO_PORT5 54 | ||
90 | #define IRQ_U300_GPIO_PORT6 55 | ||
91 | #define U300_NR_IRQS 56 | ||
92 | #endif | ||
93 | |||
94 | /* The DB3210-specific interrupt lines */ | ||
95 | #ifdef CONFIG_MACH_U300_BS365 | ||
96 | #define IRQ_U300_GPIO_PORT3 35 | ||
97 | #define IRQ_U300_GPIO_PORT4 36 | ||
98 | #define IRQ_U300_WDOG 37 | ||
99 | #define IRQ_U300_EVHIST 38 | ||
100 | #define IRQ_U300_MSPRO 39 | ||
101 | #define IRQ_U300_MMCSD_MCIINTR0 40 | ||
102 | #define IRQ_U300_MMCSD_MCIINTR1 41 | ||
103 | #define IRQ_U300_I2C0 42 | ||
104 | #define IRQ_U300_I2C1 43 | ||
105 | #define IRQ_U300_RTC 44 | ||
106 | #define IRQ_U300_NFIF 45 | ||
107 | #define IRQ_U300_NFIF2 46 | ||
108 | #define IRQ_U300_SYSCON_PLL_LOCK 47 | ||
109 | #define U300_NR_IRQS 48 | ||
110 | #endif | ||
111 | |||
112 | #define NR_IRQS U300_NR_IRQS | ||
113 | |||
114 | #endif | ||
diff --git a/arch/arm/mach-u300/include/mach/memory.h b/arch/arm/mach-u300/include/mach/memory.h new file mode 100644 index 000000000000..bf134bcc129d --- /dev/null +++ b/arch/arm/mach-u300/include/mach/memory.h | |||
@@ -0,0 +1,42 @@ | |||
1 | /* | ||
2 | * | ||
3 | * arch/arm/mach-u300/include/mach/memory.h | ||
4 | * | ||
5 | * | ||
6 | * Copyright (C) 2007-2009 ST-Ericsson AB | ||
7 | * License terms: GNU General Public License (GPL) version 2 | ||
8 | * Memory virtual/physical mapping constants. | ||
9 | * Author: Linus Walleij <linus.walleij@stericsson.com> | ||
10 | * Author: Jonas Aaberg <jonas.aberg@stericsson.com> | ||
11 | */ | ||
12 | |||
13 | #ifndef __MACH_MEMORY_H | ||
14 | #define __MACH_MEMORY_H | ||
15 | |||
16 | #ifdef CONFIG_MACH_U300_DUAL_RAM | ||
17 | |||
18 | #define PHYS_OFFSET UL(0x48000000) | ||
19 | #define BOOT_PARAMS_OFFSET (PHYS_OFFSET + 0x100) | ||
20 | |||
21 | #else | ||
22 | |||
23 | #ifdef CONFIG_MACH_U300_2MB_ALIGNMENT_FIX | ||
24 | #define PHYS_OFFSET (0x28000000 + \ | ||
25 | (CONFIG_MACH_U300_ACCESS_MEM_SIZE - \ | ||
26 | (CONFIG_MACH_U300_ACCESS_MEM_SIZE & 1))*1024*1024) | ||
27 | #else | ||
28 | #define PHYS_OFFSET (0x28000000 + \ | ||
29 | (CONFIG_MACH_U300_ACCESS_MEM_SIZE + \ | ||
30 | (CONFIG_MACH_U300_ACCESS_MEM_SIZE & 1))*1024*1024) | ||
31 | #endif | ||
32 | #define BOOT_PARAMS_OFFSET (0x28000000 + \ | ||
33 | (CONFIG_MACH_U300_ACCESS_MEM_SIZE + \ | ||
34 | (CONFIG_MACH_U300_ACCESS_MEM_SIZE & 1))*1024*1024 + 0x100) | ||
35 | #endif | ||
36 | |||
37 | /* | ||
38 | * We enable a real big DMA buffer if need be. | ||
39 | */ | ||
40 | #define CONSISTENT_DMA_SIZE SZ_4M | ||
41 | |||
42 | #endif | ||
diff --git a/arch/arm/mach-u300/include/mach/platform.h b/arch/arm/mach-u300/include/mach/platform.h new file mode 100644 index 000000000000..77d9210a82e2 --- /dev/null +++ b/arch/arm/mach-u300/include/mach/platform.h | |||
@@ -0,0 +1,19 @@ | |||
1 | /* | ||
2 | * | ||
3 | * arch/arm/mach-u300/include/mach/platform.h | ||
4 | * | ||
5 | * | ||
6 | * Copyright (C) 2006-2009 ST-Ericsson AB | ||
7 | * License terms: GNU General Public License (GPL) version 2 | ||
8 | * Basic platform init and mapping functions. | ||
9 | * Author: Linus Walleij <linus.walleij@stericsson.com> | ||
10 | */ | ||
11 | |||
12 | #ifndef __ASSEMBLY__ | ||
13 | |||
14 | void u300_map_io(void); | ||
15 | void u300_init_irq(void); | ||
16 | void u300_init_devices(void); | ||
17 | extern struct sys_timer u300_timer; | ||
18 | |||
19 | #endif | ||
diff --git a/arch/arm/mach-u300/include/mach/syscon.h b/arch/arm/mach-u300/include/mach/syscon.h new file mode 100644 index 000000000000..1c90d1b1ccb6 --- /dev/null +++ b/arch/arm/mach-u300/include/mach/syscon.h | |||
@@ -0,0 +1,644 @@ | |||
1 | /* | ||
2 | * | ||
3 | * arch/arm/mach-u300/include/mach/syscon.h | ||
4 | * | ||
5 | * | ||
6 | * Copyright (C) 2008 ST-Ericsson AB | ||
7 | * | ||
8 | * Author: Rickard Andersson <rickard.andersson@stericsson.com> | ||
9 | */ | ||
10 | |||
11 | #ifndef __MACH_SYSCON_H | ||
12 | #define __MACH_SYSCON_H | ||
13 | |||
14 | /* | ||
15 | * All register defines for SYSCON registers that concerns individual | ||
16 | * block clocks and reset lines are registered here. This is because | ||
17 | * we don't want any other file to try to fool around with this stuff. | ||
18 | */ | ||
19 | |||
20 | /* APP side SYSCON registers */ | ||
21 | /* TODO: this is incomplete. Add all from asic_syscon_map.h eventually. */ | ||
22 | /* CLK Control Register 16bit (R/W) */ | ||
23 | #define U300_SYSCON_CCR (0x0000) | ||
24 | #define U300_SYSCON_CCR_I2S1_USE_VCXO (0x0040) | ||
25 | #define U300_SYSCON_CCR_I2S0_USE_VCXO (0x0020) | ||
26 | #define U300_SYSCON_CCR_TURN_VCXO_ON (0x0008) | ||
27 | #define U300_SYSCON_CCR_CLKING_PERFORMANCE_MASK (0x0007) | ||
28 | #define U300_SYSCON_CCR_CLKING_PERFORMANCE_LOW_POWER (0x04) | ||
29 | #define U300_SYSCON_CCR_CLKING_PERFORMANCE_LOW (0x03) | ||
30 | #define U300_SYSCON_CCR_CLKING_PERFORMANCE_INTERMEDIATE (0x02) | ||
31 | #define U300_SYSCON_CCR_CLKING_PERFORMANCE_HIGH (0x01) | ||
32 | #define U300_SYSCON_CCR_CLKING_PERFORMANCE_BEST (0x00) | ||
33 | /* CLK Status Register 16bit (R/W) */ | ||
34 | #define U300_SYSCON_CSR (0x0004) | ||
35 | #define U300_SYSCON_CSR_PLL208_LOCK_IND (0x0002) | ||
36 | #define U300_SYSCON_CSR_PLL13_LOCK_IND (0x0001) | ||
37 | /* Reset lines for SLOW devices 16bit (R/W) */ | ||
38 | #define U300_SYSCON_RSR (0x0014) | ||
39 | #ifdef CONFIG_MACH_U300_BS335 | ||
40 | #define U300_SYSCON_RSR_PPM_RESET_EN (0x0200) | ||
41 | #endif | ||
42 | #define U300_SYSCON_RSR_ACC_TMR_RESET_EN (0x0100) | ||
43 | #define U300_SYSCON_RSR_APP_TMR_RESET_EN (0x0080) | ||
44 | #define U300_SYSCON_RSR_RTC_RESET_EN (0x0040) | ||
45 | #define U300_SYSCON_RSR_KEYPAD_RESET_EN (0x0020) | ||
46 | #define U300_SYSCON_RSR_GPIO_RESET_EN (0x0010) | ||
47 | #define U300_SYSCON_RSR_EH_RESET_EN (0x0008) | ||
48 | #define U300_SYSCON_RSR_BTR_RESET_EN (0x0004) | ||
49 | #define U300_SYSCON_RSR_UART_RESET_EN (0x0002) | ||
50 | #define U300_SYSCON_RSR_SLOW_BRIDGE_RESET_EN (0x0001) | ||
51 | /* Reset lines for FAST devices 16bit (R/W) */ | ||
52 | #define U300_SYSCON_RFR (0x0018) | ||
53 | #ifdef CONFIG_MACH_U300_BS335 | ||
54 | #define U300_SYSCON_RFR_UART1_RESET_ENABLE (0x0080) | ||
55 | #endif | ||
56 | #define U300_SYSCON_RFR_SPI_RESET_ENABLE (0x0040) | ||
57 | #define U300_SYSCON_RFR_MMC_RESET_ENABLE (0x0020) | ||
58 | #define U300_SYSCON_RFR_PCM_I2S1_RESET_ENABLE (0x0010) | ||
59 | #define U300_SYSCON_RFR_PCM_I2S0_RESET_ENABLE (0x0008) | ||
60 | #define U300_SYSCON_RFR_I2C1_RESET_ENABLE (0x0004) | ||
61 | #define U300_SYSCON_RFR_I2C0_RESET_ENABLE (0x0002) | ||
62 | #define U300_SYSCON_RFR_FAST_BRIDGE_RESET_ENABLE (0x0001) | ||
63 | /* Reset lines for the rest of the peripherals 16bit (R/W) */ | ||
64 | #define U300_SYSCON_RRR (0x001c) | ||
65 | #ifdef CONFIG_MACH_U300_BS335 | ||
66 | #define U300_SYSCON_RRR_CDS_RESET_EN (0x4000) | ||
67 | #define U300_SYSCON_RRR_ISP_RESET_EN (0x2000) | ||
68 | #endif | ||
69 | #define U300_SYSCON_RRR_INTCON_RESET_EN (0x1000) | ||
70 | #define U300_SYSCON_RRR_MSPRO_RESET_EN (0x0800) | ||
71 | #define U300_SYSCON_RRR_XGAM_RESET_EN (0x0100) | ||
72 | #define U300_SYSCON_RRR_XGAM_VC_SYNC_RESET_EN (0x0080) | ||
73 | #define U300_SYSCON_RRR_NANDIF_RESET_EN (0x0040) | ||
74 | #define U300_SYSCON_RRR_EMIF_RESET_EN (0x0020) | ||
75 | #define U300_SYSCON_RRR_DMAC_RESET_EN (0x0010) | ||
76 | #define U300_SYSCON_RRR_CPU_RESET_EN (0x0008) | ||
77 | #define U300_SYSCON_RRR_APEX_RESET_EN (0x0004) | ||
78 | #define U300_SYSCON_RRR_AHB_RESET_EN (0x0002) | ||
79 | #define U300_SYSCON_RRR_AAIF_RESET_EN (0x0001) | ||
80 | /* Clock enable for SLOW peripherals 16bit (R/W) */ | ||
81 | #define U300_SYSCON_CESR (0x0020) | ||
82 | #ifdef CONFIG_MACH_U300_BS335 | ||
83 | #define U300_SYSCON_CESR_PPM_CLK_EN (0x0200) | ||
84 | #endif | ||
85 | #define U300_SYSCON_CESR_ACC_TMR_CLK_EN (0x0100) | ||
86 | #define U300_SYSCON_CESR_APP_TMR_CLK_EN (0x0080) | ||
87 | #define U300_SYSCON_CESR_KEYPAD_CLK_EN (0x0040) | ||
88 | #define U300_SYSCON_CESR_GPIO_CLK_EN (0x0010) | ||
89 | #define U300_SYSCON_CESR_EH_CLK_EN (0x0008) | ||
90 | #define U300_SYSCON_CESR_BTR_CLK_EN (0x0004) | ||
91 | #define U300_SYSCON_CESR_UART_CLK_EN (0x0002) | ||
92 | #define U300_SYSCON_CESR_SLOW_BRIDGE_CLK_EN (0x0001) | ||
93 | /* Clock enable for FAST peripherals 16bit (R/W) */ | ||
94 | #define U300_SYSCON_CEFR (0x0024) | ||
95 | #ifdef CONFIG_MACH_U300_BS335 | ||
96 | #define U300_SYSCON_CEFR_UART1_CLK_EN (0x0200) | ||
97 | #endif | ||
98 | #define U300_SYSCON_CEFR_I2S1_CORE_CLK_EN (0x0100) | ||
99 | #define U300_SYSCON_CEFR_I2S0_CORE_CLK_EN (0x0080) | ||
100 | #define U300_SYSCON_CEFR_SPI_CLK_EN (0x0040) | ||
101 | #define U300_SYSCON_CEFR_MMC_CLK_EN (0x0020) | ||
102 | #define U300_SYSCON_CEFR_I2S1_CLK_EN (0x0010) | ||
103 | #define U300_SYSCON_CEFR_I2S0_CLK_EN (0x0008) | ||
104 | #define U300_SYSCON_CEFR_I2C1_CLK_EN (0x0004) | ||
105 | #define U300_SYSCON_CEFR_I2C0_CLK_EN (0x0002) | ||
106 | #define U300_SYSCON_CEFR_FAST_BRIDGE_CLK_EN (0x0001) | ||
107 | /* Clock enable for the rest of the peripherals 16bit (R/W) */ | ||
108 | #define U300_SYSCON_CERR (0x0028) | ||
109 | #ifdef CONFIG_MACH_U300_BS335 | ||
110 | #define U300_SYSCON_CERR_CDS_CLK_EN (0x2000) | ||
111 | #define U300_SYSCON_CERR_ISP_CLK_EN (0x1000) | ||
112 | #endif | ||
113 | #define U300_SYSCON_CERR_MSPRO_CLK_EN (0x0800) | ||
114 | #define U300_SYSCON_CERR_AHB_SUBSYS_BRIDGE_CLK_EN (0x0400) | ||
115 | #define U300_SYSCON_CERR_SEMI_CLK_EN (0x0200) | ||
116 | #define U300_SYSCON_CERR_XGAM_CLK_EN (0x0100) | ||
117 | #define U300_SYSCON_CERR_VIDEO_ENC_CLK_EN (0x0080) | ||
118 | #define U300_SYSCON_CERR_NANDIF_CLK_EN (0x0040) | ||
119 | #define U300_SYSCON_CERR_EMIF_CLK_EN (0x0020) | ||
120 | #define U300_SYSCON_CERR_DMAC_CLK_EN (0x0010) | ||
121 | #define U300_SYSCON_CERR_CPU_CLK_EN (0x0008) | ||
122 | #define U300_SYSCON_CERR_APEX_CLK_EN (0x0004) | ||
123 | #define U300_SYSCON_CERR_AHB_CLK_EN (0x0002) | ||
124 | #define U300_SYSCON_CERR_AAIF_CLK_EN (0x0001) | ||
125 | /* Single block clock enable 16bit (-/W) */ | ||
126 | #define U300_SYSCON_SBCER (0x002c) | ||
127 | #ifdef CONFIG_MACH_U300_BS335 | ||
128 | #define U300_SYSCON_SBCER_PPM_CLK_EN (0x0009) | ||
129 | #endif | ||
130 | #define U300_SYSCON_SBCER_ACC_TMR_CLK_EN (0x0008) | ||
131 | #define U300_SYSCON_SBCER_APP_TMR_CLK_EN (0x0007) | ||
132 | #define U300_SYSCON_SBCER_KEYPAD_CLK_EN (0x0006) | ||
133 | #define U300_SYSCON_SBCER_GPIO_CLK_EN (0x0004) | ||
134 | #define U300_SYSCON_SBCER_EH_CLK_EN (0x0003) | ||
135 | #define U300_SYSCON_SBCER_BTR_CLK_EN (0x0002) | ||
136 | #define U300_SYSCON_SBCER_UART_CLK_EN (0x0001) | ||
137 | #define U300_SYSCON_SBCER_SLOW_BRIDGE_CLK_EN (0x0000) | ||
138 | #ifdef CONFIG_MACH_U300_BS335 | ||
139 | #define U300_SYSCON_SBCER_UART1_CLK_EN (0x0019) | ||
140 | #endif | ||
141 | #define U300_SYSCON_SBCER_I2S1_CORE_CLK_EN (0x0018) | ||
142 | #define U300_SYSCON_SBCER_I2S0_CORE_CLK_EN (0x0017) | ||
143 | #define U300_SYSCON_SBCER_SPI_CLK_EN (0x0016) | ||
144 | #define U300_SYSCON_SBCER_MMC_CLK_EN (0x0015) | ||
145 | #define U300_SYSCON_SBCER_I2S1_CLK_EN (0x0014) | ||
146 | #define U300_SYSCON_SBCER_I2S0_CLK_EN (0x0013) | ||
147 | #define U300_SYSCON_SBCER_I2C1_CLK_EN (0x0012) | ||
148 | #define U300_SYSCON_SBCER_I2C0_CLK_EN (0x0011) | ||
149 | #define U300_SYSCON_SBCER_FAST_BRIDGE_CLK_EN (0x0010) | ||
150 | #ifdef CONFIG_MACH_U300_BS335 | ||
151 | #define U300_SYSCON_SBCER_CDS_CLK_EN (0x002D) | ||
152 | #define U300_SYSCON_SBCER_ISP_CLK_EN (0x002C) | ||
153 | #endif | ||
154 | #define U300_SYSCON_SBCER_MSPRO_CLK_EN (0x002B) | ||
155 | #define U300_SYSCON_SBCER_AHB_SUBSYS_BRIDGE_CLK_EN (0x002A) | ||
156 | #define U300_SYSCON_SBCER_SEMI_CLK_EN (0x0029) | ||
157 | #define U300_SYSCON_SBCER_XGAM_CLK_EN (0x0028) | ||
158 | #define U300_SYSCON_SBCER_VIDEO_ENC_CLK_EN (0x0027) | ||
159 | #define U300_SYSCON_SBCER_NANDIF_CLK_EN (0x0026) | ||
160 | #define U300_SYSCON_SBCER_EMIF_CLK_EN (0x0025) | ||
161 | #define U300_SYSCON_SBCER_DMAC_CLK_EN (0x0024) | ||
162 | #define U300_SYSCON_SBCER_CPU_CLK_EN (0x0023) | ||
163 | #define U300_SYSCON_SBCER_APEX_CLK_EN (0x0022) | ||
164 | #define U300_SYSCON_SBCER_AHB_CLK_EN (0x0021) | ||
165 | #define U300_SYSCON_SBCER_AAIF_CLK_EN (0x0020) | ||
166 | /* Single block clock disable 16bit (-/W) */ | ||
167 | #define U300_SYSCON_SBCDR (0x0030) | ||
168 | /* Same values as above for SBCER */ | ||
169 | /* Clock force SLOW peripherals 16bit (R/W) */ | ||
170 | #define U300_SYSCON_CFSR (0x003c) | ||
171 | #ifdef CONFIG_MACH_U300_BS335 | ||
172 | #define U300_SYSCON_CFSR_PPM_CLK_FORCE_EN (0x0200) | ||
173 | #endif | ||
174 | #define U300_SYSCON_CFSR_ACC_TMR_CLK_FORCE_EN (0x0100) | ||
175 | #define U300_SYSCON_CFSR_APP_TMR_CLK_FORCE_EN (0x0080) | ||
176 | #define U300_SYSCON_CFSR_KEYPAD_CLK_FORCE_EN (0x0020) | ||
177 | #define U300_SYSCON_CFSR_GPIO_CLK_FORCE_EN (0x0010) | ||
178 | #define U300_SYSCON_CFSR_EH_CLK_FORCE_EN (0x0008) | ||
179 | #define U300_SYSCON_CFSR_BTR_CLK_FORCE_EN (0x0004) | ||
180 | #define U300_SYSCON_CFSR_UART_CLK_FORCE_EN (0x0002) | ||
181 | #define U300_SYSCON_CFSR_SLOW_BRIDGE_CLK_FORCE_EN (0x0001) | ||
182 | /* Clock force FAST peripherals 16bit (R/W) */ | ||
183 | #define U300_SYSCON_CFFR (0x40) | ||
184 | /* Values not defined. Define if you want to use them. */ | ||
185 | /* Clock force the rest of the peripherals 16bit (R/W) */ | ||
186 | #define U300_SYSCON_CFRR (0x44) | ||
187 | #ifdef CONFIG_MACH_U300_BS335 | ||
188 | #define U300_SYSCON_CFRR_CDS_CLK_FORCE_EN (0x2000) | ||
189 | #define U300_SYSCON_CFRR_ISP_CLK_FORCE_EN (0x1000) | ||
190 | #endif | ||
191 | #define U300_SYSCON_CFRR_MSPRO_CLK_FORCE_EN (0x0800) | ||
192 | #define U300_SYSCON_CFRR_AHB_SUBSYS_BRIDGE_CLK_FORCE_EN (0x0400) | ||
193 | #define U300_SYSCON_CFRR_SEMI_CLK_FORCE_EN (0x0200) | ||
194 | #define U300_SYSCON_CFRR_XGAM_CLK_FORCE_EN (0x0100) | ||
195 | #define U300_SYSCON_CFRR_VIDEO_ENC_CLK_FORCE_EN (0x0080) | ||
196 | #define U300_SYSCON_CFRR_NANDIF_CLK_FORCE_EN (0x0040) | ||
197 | #define U300_SYSCON_CFRR_EMIF_CLK_FORCE_EN (0x0020) | ||
198 | #define U300_SYSCON_CFRR_DMAC_CLK_FORCE_EN (0x0010) | ||
199 | #define U300_SYSCON_CFRR_CPU_CLK_FORCE_EN (0x0008) | ||
200 | #define U300_SYSCON_CFRR_APEX_CLK_FORCE_EN (0x0004) | ||
201 | #define U300_SYSCON_CFRR_AHB_CLK_FORCE_EN (0x0002) | ||
202 | #define U300_SYSCON_CFRR_AAIF_CLK_FORCE_EN (0x0001) | ||
203 | /* PLL208 Frequency Control 16bit (R/W) */ | ||
204 | #define U300_SYSCON_PFCR (0x48) | ||
205 | #define U300_SYSCON_PFCR_DPLL_MULT_NUM (0x000F) | ||
206 | /* Power Management Control 16bit (R/W) */ | ||
207 | #define U300_SYSCON_PMCR (0x50) | ||
208 | #define U300_SYSCON_PMCR_DCON_ENABLE (0x0002) | ||
209 | #define U300_SYSCON_PMCR_PWR_MGNT_ENABLE (0x0001) | ||
210 | /* | ||
211 | * All other clocking registers moved to clock.c! | ||
212 | */ | ||
213 | /* Reset Out 16bit (R/W) */ | ||
214 | #define U300_SYSCON_RCR (0x6c) | ||
215 | #define U300_SYSCON_RCR_RESOUT0_RST_N_DISABLE (0x0001) | ||
216 | /* EMIF Slew Rate Control 16bit (R/W) */ | ||
217 | #define U300_SYSCON_SRCLR (0x70) | ||
218 | #define U300_SYSCON_SRCLR_MASK (0x03FF) | ||
219 | #define U300_SYSCON_SRCLR_VALUE (0x03FF) | ||
220 | #define U300_SYSCON_SRCLR_EMIF_1_SLRC_5_B (0x0200) | ||
221 | #define U300_SYSCON_SRCLR_EMIF_1_SLRC_5_A (0x0100) | ||
222 | #define U300_SYSCON_SRCLR_EMIF_1_SLRC_4_B (0x0080) | ||
223 | #define U300_SYSCON_SRCLR_EMIF_1_SLRC_4_A (0x0040) | ||
224 | #define U300_SYSCON_SRCLR_EMIF_1_SLRC_3_B (0x0020) | ||
225 | #define U300_SYSCON_SRCLR_EMIF_1_SLRC_3_A (0x0010) | ||
226 | #define U300_SYSCON_SRCLR_EMIF_1_SLRC_2_B (0x0008) | ||
227 | #define U300_SYSCON_SRCLR_EMIF_1_SLRC_2_A (0x0004) | ||
228 | #define U300_SYSCON_SRCLR_EMIF_1_SLRC_1_B (0x0002) | ||
229 | #define U300_SYSCON_SRCLR_EMIF_1_SLRC_1_A (0x0001) | ||
230 | /* EMIF Clock Control Register 16bit (R/W) */ | ||
231 | #define U300_SYSCON_ECCR (0x0078) | ||
232 | #define U300_SYSCON_ECCR_MASK (0x000F) | ||
233 | #define U300_SYSCON_ECCR_EMIF_1_STATIC_CLK_EN_N_DISABLE (0x0008) | ||
234 | #define U300_SYSCON_ECCR_EMIF_1_RET_OUT_CLK_EN_N_DISABLE (0x0004) | ||
235 | #define U300_SYSCON_ECCR_EMIF_MEMCLK_RET_EN_N_DISABLE (0x0002) | ||
236 | #define U300_SYSCON_ECCR_EMIF_SDRCLK_RET_EN_N_DISABLE (0x0001) | ||
237 | /* PAD MUX Control register 1 (LOW) 16bit (R/W) */ | ||
238 | #define U300_SYSCON_PMC1LR (0x007C) | ||
239 | #define U300_SYSCON_PMC1LR_MASK (0xFFFF) | ||
240 | #define U300_SYSCON_PMC1LR_CDI_MASK (0xC000) | ||
241 | #define U300_SYSCON_PMC1LR_CDI_CDI (0x0000) | ||
242 | #define U300_SYSCON_PMC1LR_CDI_EMIF (0x4000) | ||
243 | #define U300_SYSCON_PMC1LR_CDI_GPIO (0x8000) | ||
244 | #define U300_SYSCON_PMC1LR_CDI_WCDMA (0xC000) | ||
245 | #define U300_SYSCON_PMC1LR_PDI_MASK (0x3000) | ||
246 | #define U300_SYSCON_PMC1LR_PDI_PDI (0x0000) | ||
247 | #define U300_SYSCON_PMC1LR_PDI_EGG (0x1000) | ||
248 | #define U300_SYSCON_PMC1LR_PDI_WCDMA (0x3000) | ||
249 | #define U300_SYSCON_PMC1LR_MMCSD_MASK (0x0C00) | ||
250 | #define U300_SYSCON_PMC1LR_MMCSD_MMCSD (0x0000) | ||
251 | #define U300_SYSCON_PMC1LR_MMCSD_MSPRO (0x0400) | ||
252 | #define U300_SYSCON_PMC1LR_MMCSD_DSP (0x0800) | ||
253 | #define U300_SYSCON_PMC1LR_MMCSD_WCDMA (0x0C00) | ||
254 | #define U300_SYSCON_PMC1LR_ETM_MASK (0x0300) | ||
255 | #define U300_SYSCON_PMC1LR_ETM_ACC (0x0000) | ||
256 | #define U300_SYSCON_PMC1LR_ETM_APP (0x0100) | ||
257 | #define U300_SYSCON_PMC1LR_EMIF_1_CS2_MASK (0x00C0) | ||
258 | #define U300_SYSCON_PMC1LR_EMIF_1_CS2_STATIC (0x0000) | ||
259 | #define U300_SYSCON_PMC1LR_EMIF_1_CS2_NFIF (0x0040) | ||
260 | #define U300_SYSCON_PMC1LR_EMIF_1_CS2_SDRAM (0x0080) | ||
261 | #define U300_SYSCON_PMC1LR_EMIF_1_CS2_STATIC_2GB (0x00C0) | ||
262 | #define U300_SYSCON_PMC1LR_EMIF_1_CS1_MASK (0x0030) | ||
263 | #define U300_SYSCON_PMC1LR_EMIF_1_CS1_STATIC (0x0000) | ||
264 | #define U300_SYSCON_PMC1LR_EMIF_1_CS1_NFIF (0x0010) | ||
265 | #define U300_SYSCON_PMC1LR_EMIF_1_CS1_SDRAM (0x0020) | ||
266 | #define U300_SYSCON_PMC1LR_EMIF_1_CS1_SEMI (0x0030) | ||
267 | #define U300_SYSCON_PMC1LR_EMIF_1_CS0_MASK (0x000C) | ||
268 | #define U300_SYSCON_PMC1LR_EMIF_1_CS0_STATIC (0x0000) | ||
269 | #define U300_SYSCON_PMC1LR_EMIF_1_CS0_NFIF (0x0004) | ||
270 | #define U300_SYSCON_PMC1LR_EMIF_1_CS0_SDRAM (0x0008) | ||
271 | #define U300_SYSCON_PMC1LR_EMIF_1_CS0_SEMI (0x000C) | ||
272 | #define U300_SYSCON_PMC1LR_EMIF_1_MASK (0x0003) | ||
273 | #define U300_SYSCON_PMC1LR_EMIF_1_STATIC (0x0000) | ||
274 | #define U300_SYSCON_PMC1LR_EMIF_1_SDRAM0 (0x0001) | ||
275 | #define U300_SYSCON_PMC1LR_EMIF_1_SDRAM1 (0x0002) | ||
276 | #define U300_SYSCON_PMC1LR_EMIF_1 (0x0003) | ||
277 | /* PAD MUX Control register 2 (HIGH) 16bit (R/W) */ | ||
278 | #define U300_SYSCON_PMC1HR (0x007E) | ||
279 | #define U300_SYSCON_PMC1HR_MASK (0xFFFF) | ||
280 | #define U300_SYSCON_PMC1HR_MISC_2_MASK (0xC000) | ||
281 | #define U300_SYSCON_PMC1HR_MISC_2_APP_GPIO (0x0000) | ||
282 | #define U300_SYSCON_PMC1HR_MISC_2_MSPRO (0x4000) | ||
283 | #define U300_SYSCON_PMC1HR_MISC_2_DSP (0x8000) | ||
284 | #define U300_SYSCON_PMC1HR_MISC_2_AAIF (0xC000) | ||
285 | #define U300_SYSCON_PMC1HR_APP_GPIO_2_MASK (0x3000) | ||
286 | #define U300_SYSCON_PMC1HR_APP_GPIO_2_APP_GPIO (0x0000) | ||
287 | #define U300_SYSCON_PMC1HR_APP_GPIO_2_NFIF (0x1000) | ||
288 | #define U300_SYSCON_PMC1HR_APP_GPIO_2_DSP (0x2000) | ||
289 | #define U300_SYSCON_PMC1HR_APP_GPIO_2_AAIF (0x3000) | ||
290 | #define U300_SYSCON_PMC1HR_APP_GPIO_1_MASK (0x0C00) | ||
291 | #define U300_SYSCON_PMC1HR_APP_GPIO_1_APP_GPIO (0x0000) | ||
292 | #define U300_SYSCON_PMC1HR_APP_GPIO_1_MMC (0x0400) | ||
293 | #define U300_SYSCON_PMC1HR_APP_GPIO_1_DSP (0x0800) | ||
294 | #define U300_SYSCON_PMC1HR_APP_GPIO_1_AAIF (0x0C00) | ||
295 | #define U300_SYSCON_PMC1HR_APP_SPI_CS_2_MASK (0x0300) | ||
296 | #define U300_SYSCON_PMC1HR_APP_SPI_CS_2_APP_GPIO (0x0000) | ||
297 | #define U300_SYSCON_PMC1HR_APP_SPI_CS_2_SPI (0x0100) | ||
298 | #define U300_SYSCON_PMC1HR_APP_SPI_CS_2_AAIF (0x0300) | ||
299 | #define U300_SYSCON_PMC1HR_APP_SPI_CS_1_MASK (0x00C0) | ||
300 | #define U300_SYSCON_PMC1HR_APP_SPI_CS_1_APP_GPIO (0x0000) | ||
301 | #define U300_SYSCON_PMC1HR_APP_SPI_CS_1_SPI (0x0040) | ||
302 | #define U300_SYSCON_PMC1HR_APP_SPI_CS_1_AAIF (0x00C0) | ||
303 | #define U300_SYSCON_PMC1HR_APP_SPI_2_MASK (0x0030) | ||
304 | #define U300_SYSCON_PMC1HR_APP_SPI_2_APP_GPIO (0x0000) | ||
305 | #define U300_SYSCON_PMC1HR_APP_SPI_2_SPI (0x0010) | ||
306 | #define U300_SYSCON_PMC1HR_APP_SPI_2_DSP (0x0020) | ||
307 | #define U300_SYSCON_PMC1HR_APP_SPI_2_AAIF (0x0030) | ||
308 | #define U300_SYSCON_PMC1HR_APP_UART0_2_MASK (0x000C) | ||
309 | #define U300_SYSCON_PMC1HR_APP_UART0_2_APP_GPIO (0x0000) | ||
310 | #define U300_SYSCON_PMC1HR_APP_UART0_2_UART0 (0x0004) | ||
311 | #define U300_SYSCON_PMC1HR_APP_UART0_2_NFIF_CS (0x0008) | ||
312 | #define U300_SYSCON_PMC1HR_APP_UART0_2_AAIF (0x000C) | ||
313 | #define U300_SYSCON_PMC1HR_APP_UART0_1_MASK (0x0003) | ||
314 | #define U300_SYSCON_PMC1HR_APP_UART0_1_APP_GPIO (0x0000) | ||
315 | #define U300_SYSCON_PMC1HR_APP_UART0_1_UART0 (0x0001) | ||
316 | #define U300_SYSCON_PMC1HR_APP_UART0_1_AAIF (0x0003) | ||
317 | /* Step one for killing the applications system 16bit (-/W) */ | ||
318 | #define U300_SYSCON_KA1R (0x0080) | ||
319 | #define U300_SYSCON_KA1R_MASK (0xFFFF) | ||
320 | #define U300_SYSCON_KA1R_VALUE (0xFFFF) | ||
321 | /* Step two for killing the application system 16bit (-/W) */ | ||
322 | #define U300_SYSCON_KA2R (0x0084) | ||
323 | #define U300_SYSCON_KA2R_MASK (0xFFFF) | ||
324 | #define U300_SYSCON_KA2R_VALUE (0xFFFF) | ||
325 | /* MMC/MSPRO frequency divider register 0 16bit (R/W) */ | ||
326 | #define U300_SYSCON_MMF0R (0x90) | ||
327 | #define U300_SYSCON_MMF0R_MASK (0x00FF) | ||
328 | #define U300_SYSCON_MMF0R_FREQ_0_HIGH_MASK (0x00F0) | ||
329 | #define U300_SYSCON_MMF0R_FREQ_0_LOW_MASK (0x000F) | ||
330 | /* MMC/MSPRO frequency divider register 1 16bit (R/W) */ | ||
331 | #define U300_SYSCON_MMF1R (0x94) | ||
332 | #define U300_SYSCON_MMF1R_MASK (0x00FF) | ||
333 | #define U300_SYSCON_MMF1R_FREQ_1_HIGH_MASK (0x00F0) | ||
334 | #define U300_SYSCON_MMF1R_FREQ_1_LOW_MASK (0x000F) | ||
335 | /* AAIF control register 16 bit (R/W) */ | ||
336 | #define U300_SYSCON_AAIFCR (0x98) | ||
337 | #define U300_SYSCON_AAIFCR_MASK (0x0003) | ||
338 | #define U300_SYSCON_AAIFCR_AASW_CTRL_MASK (0x0003) | ||
339 | #define U300_SYSCON_AAIFCR_AASW_CTRL_FUNCTIONAL (0x0000) | ||
340 | #define U300_SYSCON_AAIFCR_AASW_CTRL_MONITORING (0x0001) | ||
341 | #define U300_SYSCON_AAIFCR_AASW_CTRL_ACC_TO_EXT (0x0002) | ||
342 | #define U300_SYSCON_AAIFCR_AASW_CTRL_APP_TO_EXT (0x0003) | ||
343 | /* Clock control for the MMC and MSPRO blocks 16bit (R/W) */ | ||
344 | #define U300_SYSCON_MMCR (0x9C) | ||
345 | #define U300_SYSCON_MMCR_MASK (0x0003) | ||
346 | #define U300_SYSCON_MMCR_MMC_FB_CLK_SEL_ENABLE (0x0002) | ||
347 | #define U300_SYSCON_MMCR_MSPRO_FREQSEL_ENABLE (0x0001) | ||
348 | |||
349 | /* TODO: More SYSCON registers missing */ | ||
350 | #define U300_SYSCON_PMC3R (0x10c) | ||
351 | #define U300_SYSCON_PMC3R_APP_MISC_11_MASK (0xc000) | ||
352 | #define U300_SYSCON_PMC3R_APP_MISC_11_SPI (0x4000) | ||
353 | #define U300_SYSCON_PMC3R_APP_MISC_10_MASK (0x3000) | ||
354 | #define U300_SYSCON_PMC3R_APP_MISC_10_SPI (0x1000) | ||
355 | /* TODO: Missing other configs, I just added the SPI stuff */ | ||
356 | |||
357 | /* SYS_0_CLK_CONTROL first clock control 16bit (R/W) */ | ||
358 | #define U300_SYSCON_S0CCR (0x120) | ||
359 | #define U300_SYSCON_S0CCR_FIELD_MASK (0x43FF) | ||
360 | #define U300_SYSCON_S0CCR_CLOCK_REQ (0x4000) | ||
361 | #define U300_SYSCON_S0CCR_CLOCK_INV (0x0200) | ||
362 | #define U300_SYSCON_S0CCR_CLOCK_FREQ_MASK (0x01E0) | ||
363 | #define U300_SYSCON_S0CCR_CLOCK_SELECT_MASK (0x001E) | ||
364 | #define U300_SYSCON_S0CCR_CLOCK_ENABLE (0x0001) | ||
365 | #define U300_SYSCON_S0CCR_SEL_MCLK (0x8<<1) | ||
366 | #define U300_SYSCON_S0CCR_SEL_ACC_FSM_CLK (0xA<<1) | ||
367 | #define U300_SYSCON_S0CCR_SEL_PLL60_48_CLK (0xC<<1) | ||
368 | #define U300_SYSCON_S0CCR_SEL_PLL60_60_CLK (0xD<<1) | ||
369 | #define U300_SYSCON_S0CCR_SEL_ACC_PLL208_CLK (0xE<<1) | ||
370 | #define U300_SYSCON_S0CCR_SEL_APP_PLL13_CLK (0x0<<1) | ||
371 | #define U300_SYSCON_S0CCR_SEL_APP_FSM_CLK (0x2<<1) | ||
372 | #define U300_SYSCON_S0CCR_SEL_RTC_CLK (0x4<<1) | ||
373 | #define U300_SYSCON_S0CCR_SEL_APP_PLL208_CLK (0x6<<1) | ||
374 | /* SYS_1_CLK_CONTROL second clock control 16 bit (R/W) */ | ||
375 | #define U300_SYSCON_S1CCR (0x124) | ||
376 | #define U300_SYSCON_S1CCR_FIELD_MASK (0x43FF) | ||
377 | #define U300_SYSCON_S1CCR_CLOCK_REQ (0x4000) | ||
378 | #define U300_SYSCON_S1CCR_CLOCK_INV (0x0200) | ||
379 | #define U300_SYSCON_S1CCR_CLOCK_FREQ_MASK (0x01E0) | ||
380 | #define U300_SYSCON_S1CCR_CLOCK_SELECT_MASK (0x001E) | ||
381 | #define U300_SYSCON_S1CCR_CLOCK_ENABLE (0x0001) | ||
382 | #define U300_SYSCON_S1CCR_SEL_MCLK (0x8<<1) | ||
383 | #define U300_SYSCON_S1CCR_SEL_ACC_FSM_CLK (0xA<<1) | ||
384 | #define U300_SYSCON_S1CCR_SEL_PLL60_48_CLK (0xC<<1) | ||
385 | #define U300_SYSCON_S1CCR_SEL_PLL60_60_CLK (0xD<<1) | ||
386 | #define U300_SYSCON_S1CCR_SEL_ACC_PLL208_CLK (0xE<<1) | ||
387 | #define U300_SYSCON_S1CCR_SEL_ACC_PLL13_CLK (0x0<<1) | ||
388 | #define U300_SYSCON_S1CCR_SEL_APP_FSM_CLK (0x2<<1) | ||
389 | #define U300_SYSCON_S1CCR_SEL_RTC_CLK (0x4<<1) | ||
390 | #define U300_SYSCON_S1CCR_SEL_APP_PLL208_CLK (0x6<<1) | ||
391 | /* SYS_2_CLK_CONTROL third clock contol 16 bit (R/W) */ | ||
392 | #define U300_SYSCON_S2CCR (0x128) | ||
393 | #define U300_SYSCON_S2CCR_FIELD_MASK (0xC3FF) | ||
394 | #define U300_SYSCON_S2CCR_CLK_STEAL (0x8000) | ||
395 | #define U300_SYSCON_S2CCR_CLOCK_REQ (0x4000) | ||
396 | #define U300_SYSCON_S2CCR_CLOCK_INV (0x0200) | ||
397 | #define U300_SYSCON_S2CCR_CLOCK_FREQ_MASK (0x01E0) | ||
398 | #define U300_SYSCON_S2CCR_CLOCK_SELECT_MASK (0x001E) | ||
399 | #define U300_SYSCON_S2CCR_CLOCK_ENABLE (0x0001) | ||
400 | #define U300_SYSCON_S2CCR_SEL_MCLK (0x8<<1) | ||
401 | #define U300_SYSCON_S2CCR_SEL_ACC_FSM_CLK (0xA<<1) | ||
402 | #define U300_SYSCON_S2CCR_SEL_PLL60_48_CLK (0xC<<1) | ||
403 | #define U300_SYSCON_S2CCR_SEL_PLL60_60_CLK (0xD<<1) | ||
404 | #define U300_SYSCON_S2CCR_SEL_ACC_PLL208_CLK (0xE<<1) | ||
405 | #define U300_SYSCON_S2CCR_SEL_ACC_PLL13_CLK (0x0<<1) | ||
406 | #define U300_SYSCON_S2CCR_SEL_APP_FSM_CLK (0x2<<1) | ||
407 | #define U300_SYSCON_S2CCR_SEL_RTC_CLK (0x4<<1) | ||
408 | #define U300_SYSCON_S2CCR_SEL_APP_PLL208_CLK (0x6<<1) | ||
409 | /* SYS_MISC_CONTROL, miscellaneous 16bit (R/W) */ | ||
410 | #define U300_SYSCON_MCR (0x12c) | ||
411 | #define U300_SYSCON_MCR_FIELD_MASK (0x00FF) | ||
412 | #define U300_SYSCON_MCR_PMGEN_CR_4_MASK (0x00C0) | ||
413 | #define U300_SYSCON_MCR_PMGEN_CR_4_GPIO (0x0000) | ||
414 | #define U300_SYSCON_MCR_PMGEN_CR_4_SPI (0x0040) | ||
415 | #define U300_SYSCON_MCR_PMGEN_CR_4_AAIF (0x00C0) | ||
416 | #define U300_SYSCON_MCR_PMGEN_CR_2_MASK (0x0030) | ||
417 | #define U300_SYSCON_MCR_PMGEN_CR_2_GPIO (0x0000) | ||
418 | #define U300_SYSCON_MCR_PMGEN_CR_2_EMIF_1_STATIC (0x0010) | ||
419 | #define U300_SYSCON_MCR_PMGEN_CR_2_DSP (0x0020) | ||
420 | #define U300_SYSCON_MCR_PMGEN_CR_2_AAIF (0x0030) | ||
421 | #define U300_SYSCON_MCR_PMGEN_CR_0_MASK (0x000C) | ||
422 | #define U300_SYSCON_MCR_PMGEN_CR_0_EMIF_1_SDRAM_M1 (0x0000) | ||
423 | #define U300_SYSCON_MCR_PMGEN_CR_0_EMIF_1_SDRAM_M2 (0x0004) | ||
424 | #define U300_SYSCON_MCR_PMGEN_CR_0_EMIF_1_SDRAM_M3 (0x0008) | ||
425 | #define U300_SYSCON_MCR_PMGEN_CR_0_EMIF_0_SDRAM (0x000C) | ||
426 | #define U300_SYSCON_MCR_PM1G_MODE_ENABLE (0x0002) | ||
427 | #define U300_SYSCON_MCR_PMTG5_MODE_ENABLE (0x0001) | ||
428 | /* Clock activity observability register 0 */ | ||
429 | #define U300_SYSCON_C0OAR (0x140) | ||
430 | #define U300_SYSCON_C0OAR_MASK (0xFFFF) | ||
431 | #define U300_SYSCON_C0OAR_VALUE (0xFFFF) | ||
432 | #define U300_SYSCON_C0OAR_BT_H_CLK (0x8000) | ||
433 | #define U300_SYSCON_C0OAR_ASPB_P_CLK (0x4000) | ||
434 | #define U300_SYSCON_C0OAR_APP_SEMI_H_CLK (0x2000) | ||
435 | #define U300_SYSCON_C0OAR_APP_SEMI_CLK (0x1000) | ||
436 | #define U300_SYSCON_C0OAR_APP_MMC_MSPRO_CLK (0x0800) | ||
437 | #define U300_SYSCON_C0OAR_APP_I2S1_CLK (0x0400) | ||
438 | #define U300_SYSCON_C0OAR_APP_I2S0_CLK (0x0200) | ||
439 | #define U300_SYSCON_C0OAR_APP_CPU_CLK (0x0100) | ||
440 | #define U300_SYSCON_C0OAR_APP_52_CLK (0x0080) | ||
441 | #define U300_SYSCON_C0OAR_APP_208_CLK (0x0040) | ||
442 | #define U300_SYSCON_C0OAR_APP_104_CLK (0x0020) | ||
443 | #define U300_SYSCON_C0OAR_APEX_CLK (0x0010) | ||
444 | #define U300_SYSCON_C0OAR_AHPB_M_H_CLK (0x0008) | ||
445 | #define U300_SYSCON_C0OAR_AHB_CLK (0x0004) | ||
446 | #define U300_SYSCON_C0OAR_AFPB_P_CLK (0x0002) | ||
447 | #define U300_SYSCON_C0OAR_AAIF_CLK (0x0001) | ||
448 | /* Clock activity observability register 1 */ | ||
449 | #define U300_SYSCON_C1OAR (0x144) | ||
450 | #define U300_SYSCON_C1OAR_MASK (0x3FFE) | ||
451 | #define U300_SYSCON_C1OAR_VALUE (0x3FFE) | ||
452 | #define U300_SYSCON_C1OAR_NFIF_F_CLK (0x2000) | ||
453 | #define U300_SYSCON_C1OAR_MSPRO_CLK (0x1000) | ||
454 | #define U300_SYSCON_C1OAR_MMC_P_CLK (0x0800) | ||
455 | #define U300_SYSCON_C1OAR_MMC_CLK (0x0400) | ||
456 | #define U300_SYSCON_C1OAR_KP_P_CLK (0x0200) | ||
457 | #define U300_SYSCON_C1OAR_I2C1_P_CLK (0x0100) | ||
458 | #define U300_SYSCON_C1OAR_I2C0_P_CLK (0x0080) | ||
459 | #define U300_SYSCON_C1OAR_GPIO_CLK (0x0040) | ||
460 | #define U300_SYSCON_C1OAR_EMIF_MPMC_CLK (0x0020) | ||
461 | #define U300_SYSCON_C1OAR_EMIF_H_CLK (0x0010) | ||
462 | #define U300_SYSCON_C1OAR_EVHIST_CLK (0x0008) | ||
463 | #define U300_SYSCON_C1OAR_PPM_CLK (0x0004) | ||
464 | #define U300_SYSCON_C1OAR_DMA_CLK (0x0002) | ||
465 | /* Clock activity observability register 2 */ | ||
466 | #define U300_SYSCON_C2OAR (0x148) | ||
467 | #define U300_SYSCON_C2OAR_MASK (0x0FFF) | ||
468 | #define U300_SYSCON_C2OAR_VALUE (0x0FFF) | ||
469 | #define U300_SYSCON_C2OAR_XGAM_CDI_CLK (0x0800) | ||
470 | #define U300_SYSCON_C2OAR_XGAM_CLK (0x0400) | ||
471 | #define U300_SYSCON_C2OAR_VC_H_CLK (0x0200) | ||
472 | #define U300_SYSCON_C2OAR_VC_CLK (0x0100) | ||
473 | #define U300_SYSCON_C2OAR_UA_P_CLK (0x0080) | ||
474 | #define U300_SYSCON_C2OAR_TMR1_CLK (0x0040) | ||
475 | #define U300_SYSCON_C2OAR_TMR0_CLK (0x0020) | ||
476 | #define U300_SYSCON_C2OAR_SPI_P_CLK (0x0010) | ||
477 | #define U300_SYSCON_C2OAR_PCM_I2S1_CORE_CLK (0x0008) | ||
478 | #define U300_SYSCON_C2OAR_PCM_I2S1_CLK (0x0004) | ||
479 | #define U300_SYSCON_C2OAR_PCM_I2S0_CORE_CLK (0x0002) | ||
480 | #define U300_SYSCON_C2OAR_PCM_I2S0_CLK (0x0001) | ||
481 | |||
482 | /* Chip ID register 16bit (R/-) */ | ||
483 | #define U300_SYSCON_CIDR (0x400) | ||
484 | /* Video IRQ clear 16bit (R/W) */ | ||
485 | #define U300_SYSCON_VICR (0x404) | ||
486 | #define U300_SYSCON_VICR_VIDEO1_IRQ_CLEAR_ENABLE (0x0002) | ||
487 | #define U300_SYSCON_VICR_VIDEO0_IRQ_CLEAR_ENABLE (0x0001) | ||
488 | /* SMCR */ | ||
489 | #define U300_SYSCON_SMCR (0x4d0) | ||
490 | #define U300_SYSCON_SMCR_FIELD_MASK (0x000e) | ||
491 | #define U300_SYSCON_SMCR_SEMI_SREFACK_IND (0x0008) | ||
492 | #define U300_SYSCON_SMCR_SEMI_SREFREQ_ENABLE (0x0004) | ||
493 | #define U300_SYSCON_SMCR_SEMI_EXT_BOOT_MODE_ENABLE (0x0002) | ||
494 | /* CPU_SW_DBGEN Software Debug Enable 16bit (R/W) */ | ||
495 | #define U300_SYSCON_CSDR (0x4f0) | ||
496 | #define U300_SYSCON_CSDR_SW_DEBUG_ENABLE (0x0001) | ||
497 | /* PRINT_CONTROL Print Control 16bit (R/-) */ | ||
498 | #define U300_SYSCON_PCR (0x4f8) | ||
499 | #define U300_SYSCON_PCR_SERV_IND (0x0001) | ||
500 | /* BOOT_CONTROL 16bit (R/-) */ | ||
501 | #define U300_SYSCON_BCR (0x4fc) | ||
502 | #define U300_SYSCON_BCR_ACC_CPU_SUBSYS_VINITHI_IND (0x0400) | ||
503 | #define U300_SYSCON_BCR_APP_CPU_SUBSYS_VINITHI_IND (0x0200) | ||
504 | #define U300_SYSCON_BCR_EXTRA_BOOT_OPTION_MASK (0x01FC) | ||
505 | #define U300_SYSCON_BCR_APP_BOOT_SERV_MASK (0x0003) | ||
506 | |||
507 | |||
508 | /* CPU clock defines */ | ||
509 | /** | ||
510 | * CPU high frequency in MHz | ||
511 | */ | ||
512 | #define SYSCON_CPU_CLOCK_HIGH 208 | ||
513 | /** | ||
514 | * CPU medium frequency in MHz | ||
515 | */ | ||
516 | #define SYSCON_CPU_CLOCK_MEDIUM 104 | ||
517 | /** | ||
518 | * CPU low frequency in MHz | ||
519 | */ | ||
520 | #define SYSCON_CPU_CLOCK_LOW 13 | ||
521 | |||
522 | /* EMIF clock defines */ | ||
523 | /** | ||
524 | * EMIF high frequency in MHz | ||
525 | */ | ||
526 | #define SYSCON_EMIF_CLOCK_HIGH 104 | ||
527 | /** | ||
528 | * EMIF medium frequency in MHz | ||
529 | */ | ||
530 | #define SYSCON_EMIF_CLOCK_MEDIUM 104 | ||
531 | /** | ||
532 | * EMIF low frequency in MHz | ||
533 | */ | ||
534 | #define SYSCON_EMIF_CLOCK_LOW 13 | ||
535 | |||
536 | /* AHB clock defines */ | ||
537 | /** | ||
538 | * AHB high frequency in MHz | ||
539 | */ | ||
540 | #define SYSCON_AHB_CLOCK_HIGH 52 | ||
541 | /** | ||
542 | * AHB medium frequency in MHz | ||
543 | */ | ||
544 | #define SYSCON_AHB_CLOCK_MEDIUM 52 | ||
545 | /** | ||
546 | * AHB low frequency in MHz | ||
547 | */ | ||
548 | #define SYSCON_AHB_CLOCK_LOW 7 /* i.e 13/2=6.5MHz */ | ||
549 | |||
550 | enum syscon_busmaster { | ||
551 | SYSCON_BM_DMAC, | ||
552 | SYSCON_BM_XGAM, | ||
553 | SYSCON_BM_VIDEO_ENC | ||
554 | }; | ||
555 | |||
556 | /* | ||
557 | * Note that this array must match the order of the array "clk_reg" | ||
558 | * in syscon.c | ||
559 | */ | ||
560 | enum syscon_clk { | ||
561 | SYSCON_CLKCONTROL_SLOW_BRIDGE, | ||
562 | SYSCON_CLKCONTROL_UART, | ||
563 | SYSCON_CLKCONTROL_BTR, | ||
564 | SYSCON_CLKCONTROL_EH, | ||
565 | SYSCON_CLKCONTROL_GPIO, | ||
566 | SYSCON_CLKCONTROL_KEYPAD, | ||
567 | SYSCON_CLKCONTROL_APP_TIMER, | ||
568 | SYSCON_CLKCONTROL_ACC_TIMER, | ||
569 | SYSCON_CLKCONTROL_FAST_BRIDGE, | ||
570 | SYSCON_CLKCONTROL_I2C0, | ||
571 | SYSCON_CLKCONTROL_I2C1, | ||
572 | SYSCON_CLKCONTROL_I2S0, | ||
573 | SYSCON_CLKCONTROL_I2S1, | ||
574 | SYSCON_CLKCONTROL_MMC, | ||
575 | SYSCON_CLKCONTROL_SPI, | ||
576 | SYSCON_CLKCONTROL_I2S0_CORE, | ||
577 | SYSCON_CLKCONTROL_I2S1_CORE, | ||
578 | SYSCON_CLKCONTROL_AAIF, | ||
579 | SYSCON_CLKCONTROL_AHB, | ||
580 | SYSCON_CLKCONTROL_APEX, | ||
581 | SYSCON_CLKCONTROL_CPU, | ||
582 | SYSCON_CLKCONTROL_DMA, | ||
583 | SYSCON_CLKCONTROL_EMIF, | ||
584 | SYSCON_CLKCONTROL_NAND_IF, | ||
585 | SYSCON_CLKCONTROL_VIDEO_ENC, | ||
586 | SYSCON_CLKCONTROL_XGAM, | ||
587 | SYSCON_CLKCONTROL_SEMI, | ||
588 | SYSCON_CLKCONTROL_AHB_SUBSYS, | ||
589 | SYSCON_CLKCONTROL_MSPRO | ||
590 | }; | ||
591 | |||
592 | enum syscon_sysclk_mode { | ||
593 | SYSCON_SYSCLK_DISABLED, | ||
594 | SYSCON_SYSCLK_M_CLK, | ||
595 | SYSCON_SYSCLK_ACC_FSM, | ||
596 | SYSCON_SYSCLK_PLL60_48, | ||
597 | SYSCON_SYSCLK_PLL60_60, | ||
598 | SYSCON_SYSCLK_ACC_PLL208, | ||
599 | SYSCON_SYSCLK_APP_PLL13, | ||
600 | SYSCON_SYSCLK_APP_FSM, | ||
601 | SYSCON_SYSCLK_RTC, | ||
602 | SYSCON_SYSCLK_APP_PLL208 | ||
603 | }; | ||
604 | |||
605 | enum syscon_sysclk_req { | ||
606 | SYSCON_SYSCLKREQ_DISABLED, | ||
607 | SYSCON_SYSCLKREQ_ACTIVE_LOW | ||
608 | }; | ||
609 | |||
610 | enum syscon_clk_mode { | ||
611 | SYSCON_CLKMODE_OFF, | ||
612 | SYSCON_CLKMODE_DEFAULT, | ||
613 | SYSCON_CLKMODE_LOW, | ||
614 | SYSCON_CLKMODE_MEDIUM, | ||
615 | SYSCON_CLKMODE_HIGH, | ||
616 | SYSCON_CLKMODE_PERMANENT, | ||
617 | SYSCON_CLKMODE_ON, | ||
618 | }; | ||
619 | |||
620 | enum syscon_call_mode { | ||
621 | SYSCON_CLKCALL_NOWAIT, | ||
622 | SYSCON_CLKCALL_WAIT, | ||
623 | }; | ||
624 | |||
625 | int syscon_dc_on(bool keep_power_on); | ||
626 | int syscon_set_busmaster_active_state(enum syscon_busmaster busmaster, | ||
627 | bool active); | ||
628 | bool syscon_get_busmaster_active_state(void); | ||
629 | int syscon_set_sleep_mask(enum syscon_clk, | ||
630 | bool sleep_ctrl); | ||
631 | int syscon_config_sysclk(u32 sysclk, | ||
632 | enum syscon_sysclk_mode sysclkmode, | ||
633 | bool inverse, | ||
634 | u32 divisor, | ||
635 | enum syscon_sysclk_req sysclkreq); | ||
636 | bool syscon_can_turn_off_semi_clock(void); | ||
637 | |||
638 | /* This function is restricted to core.c */ | ||
639 | int syscon_request_normal_power(bool req); | ||
640 | |||
641 | /* This function is restricted to be used by platform_speed.c */ | ||
642 | int syscon_speed_request(enum syscon_call_mode wait_mode, | ||
643 | enum syscon_clk_mode req_clk_mode); | ||
644 | #endif /* __MACH_SYSCON_H */ | ||
diff --git a/arch/arm/mach-u300/include/mach/system.h b/arch/arm/mach-u300/include/mach/system.h new file mode 100644 index 000000000000..8daf13634ce0 --- /dev/null +++ b/arch/arm/mach-u300/include/mach/system.h | |||
@@ -0,0 +1,42 @@ | |||
1 | /* | ||
2 | * | ||
3 | * arch/arm/mach-u300/include/mach/system.h | ||
4 | * | ||
5 | * | ||
6 | * Copyright (C) 2007-2009 ST-Ericsson AB | ||
7 | * License terms: GNU General Public License (GPL) version 2 | ||
8 | * System shutdown and reset functions. | ||
9 | * Author: Linus Walleij <linus.walleij@stericsson.com> | ||
10 | */ | ||
11 | #include <mach/hardware.h> | ||
12 | #include <asm/io.h> | ||
13 | #include <asm/hardware/vic.h> | ||
14 | #include <asm/irq.h> | ||
15 | |||
16 | /* Forward declare this function from the watchdog */ | ||
17 | void coh901327_watchdog_reset(void); | ||
18 | |||
19 | static inline void arch_idle(void) | ||
20 | { | ||
21 | cpu_do_idle(); | ||
22 | } | ||
23 | |||
24 | static void arch_reset(char mode, const char *cmd) | ||
25 | { | ||
26 | switch (mode) { | ||
27 | case 's': | ||
28 | case 'h': | ||
29 | printk(KERN_CRIT "RESET: shutting down/rebooting system\n"); | ||
30 | /* Disable interrupts */ | ||
31 | local_irq_disable(); | ||
32 | #ifdef CONFIG_COH901327_WATCHDOG | ||
33 | coh901327_watchdog_reset(); | ||
34 | #endif | ||
35 | break; | ||
36 | default: | ||
37 | /* Do nothing */ | ||
38 | break; | ||
39 | } | ||
40 | /* Wait for system do die/reset. */ | ||
41 | while (1); | ||
42 | } | ||
diff --git a/arch/arm/mach-u300/include/mach/timex.h b/arch/arm/mach-u300/include/mach/timex.h new file mode 100644 index 000000000000..f233b72633f6 --- /dev/null +++ b/arch/arm/mach-u300/include/mach/timex.h | |||
@@ -0,0 +1,17 @@ | |||
1 | /* | ||
2 | * | ||
3 | * arch/arm/mach-u300/include/mach/timex.h | ||
4 | * | ||
5 | * | ||
6 | * Copyright (C) 2006-2009 ST-Ericsson AB | ||
7 | * License terms: GNU General Public License (GPL) version 2 | ||
8 | * Platform tick rate definition. | ||
9 | * Author: Linus Walleij <linus.walleij@stericsson.com> | ||
10 | */ | ||
11 | #ifndef __MACH_TIMEX_H | ||
12 | #define __MACH_TIMEX_H | ||
13 | |||
14 | /* This is for the APP OS GP1 (General Purpose 1) timer */ | ||
15 | #define CLOCK_TICK_RATE 1000000 | ||
16 | |||
17 | #endif | ||
diff --git a/arch/arm/mach-u300/include/mach/u300-regs.h b/arch/arm/mach-u300/include/mach/u300-regs.h new file mode 100644 index 000000000000..88333dfb19fc --- /dev/null +++ b/arch/arm/mach-u300/include/mach/u300-regs.h | |||
@@ -0,0 +1,187 @@ | |||
1 | /* | ||
2 | * | ||
3 | * arch/arm/mach-u300/include/mach/u300-regs.h | ||
4 | * | ||
5 | * | ||
6 | * Copyright (C) 2006-2009 ST-Ericsson AB | ||
7 | * License terms: GNU General Public License (GPL) version 2 | ||
8 | * Basic register address definitions in physical memory and | ||
9 | * some block defintions for core devices like the timer. | ||
10 | * Author: Linus Walleij <linus.walleij@stericsson.com> | ||
11 | */ | ||
12 | |||
13 | #ifndef __MACH_U300_REGS_H | ||
14 | #define __MACH_U300_REGS_H | ||
15 | |||
16 | /* | ||
17 | * These are the large blocks of memory allocated for I/O. | ||
18 | * the defines are used for setting up the I/O memory mapping. | ||
19 | */ | ||
20 | |||
21 | /* NAND Flash CS0 */ | ||
22 | #define U300_NAND_CS0_PHYS_BASE 0x80000000 | ||
23 | #define U300_NAND_CS0_VIRT_BASE 0xff040000 | ||
24 | |||
25 | /* NFIF */ | ||
26 | #define U300_NAND_IF_PHYS_BASE 0x9f800000 | ||
27 | #define U300_NAND_IF_VIRT_BASE 0xff030000 | ||
28 | |||
29 | /* AHB Peripherals */ | ||
30 | #define U300_AHB_PER_PHYS_BASE 0xa0000000 | ||
31 | #define U300_AHB_PER_VIRT_BASE 0xff010000 | ||
32 | |||
33 | /* FAST Peripherals */ | ||
34 | #define U300_FAST_PER_PHYS_BASE 0xc0000000 | ||
35 | #define U300_FAST_PER_VIRT_BASE 0xff020000 | ||
36 | |||
37 | /* SLOW Peripherals */ | ||
38 | #define U300_SLOW_PER_PHYS_BASE 0xc0010000 | ||
39 | #define U300_SLOW_PER_VIRT_BASE 0xff000000 | ||
40 | |||
41 | /* Boot ROM */ | ||
42 | #define U300_BOOTROM_PHYS_BASE 0xffff0000 | ||
43 | #define U300_BOOTROM_VIRT_BASE 0xffff0000 | ||
44 | |||
45 | /* SEMI config base */ | ||
46 | #ifdef CONFIG_MACH_U300_BS335 | ||
47 | #define U300_SEMI_CONFIG_BASE 0x2FFE0000 | ||
48 | #else | ||
49 | #define U300_SEMI_CONFIG_BASE 0x30000000 | ||
50 | #endif | ||
51 | |||
52 | /* | ||
53 | * All the following peripherals are specified at their PHYSICAL address, | ||
54 | * so if you need to access them (in the kernel), you MUST use the macros | ||
55 | * defined in <asm/io.h> to map to the IO_ADDRESS_AHB() IO_ADDRESS_FAST() | ||
56 | * etc. | ||
57 | */ | ||
58 | |||
59 | /* | ||
60 | * AHB peripherals | ||
61 | */ | ||
62 | |||
63 | /* AHB Peripherals Bridge Controller */ | ||
64 | #define U300_AHB_BRIDGE_BASE (U300_AHB_PER_PHYS_BASE+0x0000) | ||
65 | |||
66 | /* Vectored Interrupt Controller 0, servicing 32 interrupts */ | ||
67 | #define U300_INTCON0_BASE (U300_AHB_PER_PHYS_BASE+0x1000) | ||
68 | #define U300_INTCON0_VBASE (U300_AHB_PER_VIRT_BASE+0x1000) | ||
69 | |||
70 | /* Vectored Interrupt Controller 1, servicing 32 interrupts */ | ||
71 | #define U300_INTCON1_BASE (U300_AHB_PER_PHYS_BASE+0x2000) | ||
72 | #define U300_INTCON1_VBASE (U300_AHB_PER_VIRT_BASE+0x2000) | ||
73 | |||
74 | /* Memory Stick Pro (MSPRO) controller */ | ||
75 | #define U300_MSPRO_BASE (U300_AHB_PER_PHYS_BASE+0x3000) | ||
76 | |||
77 | /* EMIF Configuration Area */ | ||
78 | #define U300_EMIF_CFG_BASE (U300_AHB_PER_PHYS_BASE+0x4000) | ||
79 | |||
80 | |||
81 | /* | ||
82 | * FAST peripherals | ||
83 | */ | ||
84 | |||
85 | /* FAST bridge control */ | ||
86 | #define U300_FAST_BRIDGE_BASE (U300_FAST_PER_PHYS_BASE+0x0000) | ||
87 | |||
88 | /* MMC/SD controller */ | ||
89 | #define U300_MMCSD_BASE (U300_FAST_PER_PHYS_BASE+0x1000) | ||
90 | |||
91 | /* PCM I2S0 controller */ | ||
92 | #define U300_PCM_I2S0_BASE (U300_FAST_PER_PHYS_BASE+0x2000) | ||
93 | |||
94 | /* PCM I2S1 controller */ | ||
95 | #define U300_PCM_I2S1_BASE (U300_FAST_PER_PHYS_BASE+0x3000) | ||
96 | |||
97 | /* I2C0 controller */ | ||
98 | #define U300_I2C0_BASE (U300_FAST_PER_PHYS_BASE+0x4000) | ||
99 | |||
100 | /* I2C1 controller */ | ||
101 | #define U300_I2C1_BASE (U300_FAST_PER_PHYS_BASE+0x5000) | ||
102 | |||
103 | /* SPI controller */ | ||
104 | #define U300_SPI_BASE (U300_FAST_PER_PHYS_BASE+0x6000) | ||
105 | |||
106 | #ifdef CONFIG_MACH_U300_BS335 | ||
107 | /* Fast UART1 on U335 only */ | ||
108 | #define U300_UART1_BASE (U300_SLOW_PER_PHYS_BASE+0x7000) | ||
109 | #endif | ||
110 | |||
111 | /* | ||
112 | * SLOW peripherals | ||
113 | */ | ||
114 | |||
115 | /* SLOW bridge control */ | ||
116 | #define U300_SLOW_BRIDGE_BASE (U300_SLOW_PER_PHYS_BASE) | ||
117 | |||
118 | /* SYSCON */ | ||
119 | #define U300_SYSCON_BASE (U300_SLOW_PER_PHYS_BASE+0x1000) | ||
120 | #define U300_SYSCON_VBASE (U300_SLOW_PER_VIRT_BASE+0x1000) | ||
121 | |||
122 | /* Watchdog */ | ||
123 | #define U300_WDOG_BASE (U300_SLOW_PER_PHYS_BASE+0x2000) | ||
124 | |||
125 | /* UART0 */ | ||
126 | #define U300_UART0_BASE (U300_SLOW_PER_PHYS_BASE+0x3000) | ||
127 | |||
128 | /* APP side special timer */ | ||
129 | #define U300_TIMER_APP_BASE (U300_SLOW_PER_PHYS_BASE+0x4000) | ||
130 | #define U300_TIMER_APP_VBASE (U300_SLOW_PER_VIRT_BASE+0x4000) | ||
131 | |||
132 | /* Keypad */ | ||
133 | #define U300_KEYPAD_BASE (U300_SLOW_PER_PHYS_BASE+0x5000) | ||
134 | |||
135 | /* GPIO */ | ||
136 | #define U300_GPIO_BASE (U300_SLOW_PER_PHYS_BASE+0x6000) | ||
137 | |||
138 | /* RTC */ | ||
139 | #define U300_RTC_BASE (U300_SLOW_PER_PHYS_BASE+0x7000) | ||
140 | |||
141 | /* Bus tracer */ | ||
142 | #define U300_BUSTR_BASE (U300_SLOW_PER_PHYS_BASE+0x8000) | ||
143 | |||
144 | /* Event handler (hardware queue) */ | ||
145 | #define U300_EVHIST_BASE (U300_SLOW_PER_PHYS_BASE+0x9000) | ||
146 | |||
147 | /* Genric Timer */ | ||
148 | #define U300_TIMER_BASE (U300_SLOW_PER_PHYS_BASE+0xa000) | ||
149 | |||
150 | /* PPM */ | ||
151 | #define U300_PPM_BASE (U300_SLOW_PER_PHYS_BASE+0xb000) | ||
152 | |||
153 | |||
154 | /* | ||
155 | * REST peripherals | ||
156 | */ | ||
157 | |||
158 | /* ISP (image signal processor) is only available in U335 */ | ||
159 | #ifdef CONFIG_MACH_U300_BS335 | ||
160 | #define U300_ISP_BASE (0xA0008000) | ||
161 | #endif | ||
162 | |||
163 | /* DMA Controller base */ | ||
164 | #define U300_DMAC_BASE (0xC0020000) | ||
165 | |||
166 | /* MSL Base */ | ||
167 | #define U300_MSL_BASE (0xc0022000) | ||
168 | |||
169 | /* APEX Base */ | ||
170 | #define U300_APEX_BASE (0xc0030000) | ||
171 | |||
172 | /* Video Encoder Base */ | ||
173 | #ifdef CONFIG_MACH_U300_BS335 | ||
174 | #define U300_VIDEOENC_BASE (0xc0080000) | ||
175 | #else | ||
176 | #define U300_VIDEOENC_BASE (0xc0040000) | ||
177 | #endif | ||
178 | |||
179 | /* XGAM Base */ | ||
180 | #define U300_XGAM_BASE (0xd0000000) | ||
181 | |||
182 | /* | ||
183 | * Virtual accessor macros for static devices | ||
184 | */ | ||
185 | |||
186 | |||
187 | #endif | ||
diff --git a/arch/arm/mach-u300/include/mach/uncompress.h b/arch/arm/mach-u300/include/mach/uncompress.h new file mode 100644 index 000000000000..29acb718acf7 --- /dev/null +++ b/arch/arm/mach-u300/include/mach/uncompress.h | |||
@@ -0,0 +1,46 @@ | |||
1 | /* | ||
2 | * arch/arm/mach-u300/include/mach/uncompress.h | ||
3 | * | ||
4 | * Copyright (C) 2003 ARM Limited | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License as published by | ||
8 | * the Free Software Foundation; either version 2 of the License, or | ||
9 | * (at your option) any later version. | ||
10 | * | ||
11 | * This program is distributed in the hope that it will be useful, | ||
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
14 | * GNU General Public License for more details. | ||
15 | * | ||
16 | * You should have received a copy of the GNU General Public License | ||
17 | * along with this program; if not, write to the Free Software | ||
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
19 | */ | ||
20 | #define AMBA_UART_DR (*(volatile unsigned char *)0xc0013000) | ||
21 | #define AMBA_UART_LCRH (*(volatile unsigned char *)0xc001302C) | ||
22 | #define AMBA_UART_CR (*(volatile unsigned char *)0xc0013030) | ||
23 | #define AMBA_UART_FR (*(volatile unsigned char *)0xc0013018) | ||
24 | |||
25 | /* | ||
26 | * This does not append a newline | ||
27 | */ | ||
28 | static inline void putc(int c) | ||
29 | { | ||
30 | while (AMBA_UART_FR & (1 << 5)) | ||
31 | barrier(); | ||
32 | |||
33 | AMBA_UART_DR = c; | ||
34 | } | ||
35 | |||
36 | static inline void flush(void) | ||
37 | { | ||
38 | while (AMBA_UART_FR & (1 << 3)) | ||
39 | barrier(); | ||
40 | } | ||
41 | |||
42 | /* | ||
43 | * nothing to do | ||
44 | */ | ||
45 | #define arch_decomp_setup() | ||
46 | #define arch_decomp_wdog() | ||
diff --git a/arch/arm/mach-u300/include/mach/vmalloc.h b/arch/arm/mach-u300/include/mach/vmalloc.h new file mode 100644 index 000000000000..b00c51a66fbe --- /dev/null +++ b/arch/arm/mach-u300/include/mach/vmalloc.h | |||
@@ -0,0 +1,12 @@ | |||
1 | /* | ||
2 | * | ||
3 | * arch/arm/mach-u300/include/mach/vmalloc.h | ||
4 | * | ||
5 | * | ||
6 | * Copyright (C) 2006-2009 ST-Ericsson AB | ||
7 | * License terms: GNU General Public License (GPL) version 2 | ||
8 | * Virtual memory allocations | ||
9 | * End must be above the I/O registers and on an even 2MiB boundary. | ||
10 | * Author: Linus Walleij <linus.walleij@stericsson.com> | ||
11 | */ | ||
12 | #define VMALLOC_END 0xfe800000 | ||
diff --git a/arch/arm/mach-u300/mmc.c b/arch/arm/mach-u300/mmc.c new file mode 100644 index 000000000000..3138d3955c9e --- /dev/null +++ b/arch/arm/mach-u300/mmc.c | |||
@@ -0,0 +1,216 @@ | |||
1 | /* | ||
2 | * | ||
3 | * arch/arm/mach-u300/mmc.c | ||
4 | * | ||
5 | * | ||
6 | * Copyright (C) 2009 ST-Ericsson AB | ||
7 | * License terms: GNU General Public License (GPL) version 2 | ||
8 | * | ||
9 | * Author: Linus Walleij <linus.walleij@stericsson.com> | ||
10 | * Author: Johan Lundin <johan.lundin@stericsson.com> | ||
11 | * Author: Jonas Aaberg <jonas.aberg@stericsson.com> | ||
12 | */ | ||
13 | #include <linux/device.h> | ||
14 | #include <linux/amba/bus.h> | ||
15 | #include <linux/mmc/host.h> | ||
16 | #include <linux/input.h> | ||
17 | #include <linux/workqueue.h> | ||
18 | #include <linux/delay.h> | ||
19 | #include <linux/regulator/consumer.h> | ||
20 | #include <linux/regulator/machine.h> | ||
21 | #include <linux/gpio.h> | ||
22 | |||
23 | #include <asm/mach/mmc.h> | ||
24 | #include "mmc.h" | ||
25 | |||
26 | struct mmci_card_event { | ||
27 | struct input_dev *mmc_input; | ||
28 | int mmc_inserted; | ||
29 | struct work_struct workq; | ||
30 | struct mmc_platform_data mmc0_plat_data; | ||
31 | }; | ||
32 | |||
33 | static unsigned int mmc_status(struct device *dev) | ||
34 | { | ||
35 | struct mmci_card_event *mmci_card = container_of( | ||
36 | dev->platform_data, | ||
37 | struct mmci_card_event, mmc0_plat_data); | ||
38 | |||
39 | return mmci_card->mmc_inserted; | ||
40 | } | ||
41 | |||
42 | /* | ||
43 | * Here follows a large chunk of code which will only be enabled if you | ||
44 | * have both the AB3100 chip mounted and the MMC subsystem activated. | ||
45 | */ | ||
46 | |||
47 | static u32 mmc_translate_vdd(struct device *dev, unsigned int voltage) | ||
48 | { | ||
49 | int v; | ||
50 | |||
51 | /* | ||
52 | * MMC Spec: | ||
53 | * bit 7: 1.70 - 1.95V | ||
54 | * bit 8 - 14: 2.0 - 2.6V | ||
55 | * bit 15 - 23: 2.7 - 3.6V | ||
56 | * | ||
57 | * ab3100 voltages: | ||
58 | * 000 - 2.85V | ||
59 | * 001 - 2.75V | ||
60 | * 010 - 1.8V | ||
61 | * 011 - 1.5V | ||
62 | */ | ||
63 | switch (voltage) { | ||
64 | case 8: | ||
65 | v = 3; | ||
66 | break; | ||
67 | case 9: | ||
68 | case 10: | ||
69 | case 11: | ||
70 | case 12: | ||
71 | case 13: | ||
72 | case 14: | ||
73 | case 15: | ||
74 | v = 1; | ||
75 | break; | ||
76 | case 16: | ||
77 | v = 1; | ||
78 | break; | ||
79 | case 17: | ||
80 | case 18: | ||
81 | case 19: | ||
82 | case 20: | ||
83 | case 21: | ||
84 | case 22: | ||
85 | case 23: | ||
86 | case 24: | ||
87 | v = 0; | ||
88 | break; | ||
89 | default: | ||
90 | v = 0; | ||
91 | break; | ||
92 | } | ||
93 | |||
94 | /* PL180 voltage register bits */ | ||
95 | return v << 2; | ||
96 | } | ||
97 | |||
98 | |||
99 | |||
100 | static int mmci_callback(void *data) | ||
101 | { | ||
102 | struct mmci_card_event *mmci_card = data; | ||
103 | |||
104 | disable_irq_on_gpio_pin(U300_GPIO_PIN_MMC_CD); | ||
105 | schedule_work(&mmci_card->workq); | ||
106 | |||
107 | return 0; | ||
108 | } | ||
109 | |||
110 | |||
111 | static ssize_t gpio_show(struct device *dev, struct device_attribute *attr, | ||
112 | char *buf) | ||
113 | { | ||
114 | struct mmci_card_event *mmci_card = container_of( | ||
115 | dev->platform_data, | ||
116 | struct mmci_card_event, mmc0_plat_data); | ||
117 | |||
118 | |||
119 | return sprintf(buf, "%d\n", !mmci_card->mmc_inserted); | ||
120 | } | ||
121 | |||
122 | static DEVICE_ATTR(mmc_inserted, S_IRUGO, gpio_show, NULL); | ||
123 | |||
124 | static void _mmci_callback(struct work_struct *ws) | ||
125 | { | ||
126 | |||
127 | struct mmci_card_event *mmci_card = container_of( | ||
128 | ws, | ||
129 | struct mmci_card_event, workq); | ||
130 | |||
131 | mdelay(20); | ||
132 | |||
133 | mmci_card->mmc_inserted = !!gpio_get_value(U300_GPIO_PIN_MMC_CD); | ||
134 | |||
135 | input_report_switch(mmci_card->mmc_input, KEY_INSERT, | ||
136 | !mmci_card->mmc_inserted); | ||
137 | input_sync(mmci_card->mmc_input); | ||
138 | |||
139 | pr_debug("MMC/SD card was %s\n", | ||
140 | mmci_card->mmc_inserted ? "removed" : "inserted"); | ||
141 | |||
142 | enable_irq_on_gpio_pin(U300_GPIO_PIN_MMC_CD, !mmci_card->mmc_inserted); | ||
143 | } | ||
144 | |||
145 | int __devinit mmc_init(struct amba_device *adev) | ||
146 | { | ||
147 | struct mmci_card_event *mmci_card; | ||
148 | struct device *mmcsd_device = &adev->dev; | ||
149 | int ret = 0; | ||
150 | |||
151 | mmci_card = kzalloc(sizeof(struct mmci_card_event), GFP_KERNEL); | ||
152 | if (!mmci_card) | ||
153 | return -ENOMEM; | ||
154 | |||
155 | /* Nominally 2.85V on our platform */ | ||
156 | mmci_card->mmc0_plat_data.ocr_mask = MMC_VDD_28_29; | ||
157 | mmci_card->mmc0_plat_data.translate_vdd = mmc_translate_vdd; | ||
158 | mmci_card->mmc0_plat_data.status = mmc_status; | ||
159 | |||
160 | mmcsd_device->platform_data = (void *) &mmci_card->mmc0_plat_data; | ||
161 | |||
162 | INIT_WORK(&mmci_card->workq, _mmci_callback); | ||
163 | |||
164 | ret = gpio_request(U300_GPIO_PIN_MMC_CD, "MMC card detection"); | ||
165 | if (ret) { | ||
166 | printk(KERN_CRIT "Could not allocate MMC card detection " \ | ||
167 | "GPIO pin\n"); | ||
168 | goto out; | ||
169 | } | ||
170 | |||
171 | ret = gpio_direction_input(U300_GPIO_PIN_MMC_CD); | ||
172 | if (ret) { | ||
173 | printk(KERN_CRIT "Invalid GPIO pin requested\n"); | ||
174 | goto out; | ||
175 | } | ||
176 | |||
177 | ret = sysfs_create_file(&mmcsd_device->kobj, | ||
178 | &dev_attr_mmc_inserted.attr); | ||
179 | if (ret) | ||
180 | goto out; | ||
181 | |||
182 | mmci_card->mmc_input = input_allocate_device(); | ||
183 | if (!mmci_card->mmc_input) { | ||
184 | printk(KERN_CRIT "Could not allocate MMC input device\n"); | ||
185 | return -ENOMEM; | ||
186 | } | ||
187 | |||
188 | mmci_card->mmc_input->name = "MMC insert notification"; | ||
189 | mmci_card->mmc_input->id.bustype = BUS_HOST; | ||
190 | mmci_card->mmc_input->id.vendor = 0; | ||
191 | mmci_card->mmc_input->id.product = 0; | ||
192 | mmci_card->mmc_input->id.version = 0x0100; | ||
193 | mmci_card->mmc_input->dev.parent = mmcsd_device; | ||
194 | input_set_capability(mmci_card->mmc_input, EV_SW, KEY_INSERT); | ||
195 | |||
196 | /* | ||
197 | * Since this must always be compiled into the kernel, this input | ||
198 | * is never unregistered or free:ed. | ||
199 | */ | ||
200 | ret = input_register_device(mmci_card->mmc_input); | ||
201 | if (ret) { | ||
202 | input_free_device(mmci_card->mmc_input); | ||
203 | goto out; | ||
204 | } | ||
205 | |||
206 | input_set_drvdata(mmci_card->mmc_input, mmci_card); | ||
207 | |||
208 | ret = gpio_register_callback(U300_GPIO_PIN_MMC_CD, mmci_callback, | ||
209 | mmci_card); | ||
210 | |||
211 | schedule_work(&mmci_card->workq); | ||
212 | |||
213 | printk(KERN_INFO "Registered MMC insert/remove notification\n"); | ||
214 | out: | ||
215 | return ret; | ||
216 | } | ||
diff --git a/arch/arm/mach-u300/mmc.h b/arch/arm/mach-u300/mmc.h new file mode 100644 index 000000000000..92b85125abb3 --- /dev/null +++ b/arch/arm/mach-u300/mmc.h | |||
@@ -0,0 +1,18 @@ | |||
1 | /* | ||
2 | * | ||
3 | * arch/arm/mach-u300/mmc.h | ||
4 | * | ||
5 | * | ||
6 | * Copyright (C) 2009 ST-Ericsson AB | ||
7 | * License terms: GNU General Public License (GPL) version 2 | ||
8 | * | ||
9 | * Author: Jonas Aaberg <jonas.aberg@stericsson.com> | ||
10 | */ | ||
11 | #ifndef MMC_H | ||
12 | #define MMC_H | ||
13 | |||
14 | #include <linux/amba/bus.h> | ||
15 | |||
16 | int __devinit mmc_init(struct amba_device *adev); | ||
17 | |||
18 | #endif | ||
diff --git a/arch/arm/mach-u300/padmux.c b/arch/arm/mach-u300/padmux.c new file mode 100644 index 000000000000..f3664564f086 --- /dev/null +++ b/arch/arm/mach-u300/padmux.c | |||
@@ -0,0 +1,58 @@ | |||
1 | /* | ||
2 | * | ||
3 | * arch/arm/mach-u300/padmux.c | ||
4 | * | ||
5 | * | ||
6 | * Copyright (C) 2009 ST-Ericsson AB | ||
7 | * License terms: GNU General Public License (GPL) version 2 | ||
8 | * U300 PADMUX functions | ||
9 | * Author: Linus Walleij <linus.walleij@stericsson.com> | ||
10 | * | ||
11 | */ | ||
12 | #include <linux/io.h> | ||
13 | #include <linux/err.h> | ||
14 | #include <mach/u300-regs.h> | ||
15 | #include <mach/syscon.h> | ||
16 | |||
17 | #include "padmux.h" | ||
18 | |||
19 | /* Set the PAD MUX to route the MMC reader correctly to GPIO0. */ | ||
20 | void pmx_set_mission_mode_mmc(void) | ||
21 | { | ||
22 | u16 val; | ||
23 | |||
24 | val = readw(U300_SYSCON_VBASE + U300_SYSCON_PMC1LR); | ||
25 | val &= ~U300_SYSCON_PMC1LR_MMCSD_MASK; | ||
26 | writew(val, U300_SYSCON_VBASE + U300_SYSCON_PMC1LR); | ||
27 | val = readw(U300_SYSCON_VBASE + U300_SYSCON_PMC1HR); | ||
28 | val &= ~U300_SYSCON_PMC1HR_APP_GPIO_1_MASK; | ||
29 | val |= U300_SYSCON_PMC1HR_APP_GPIO_1_MMC; | ||
30 | writew(val, U300_SYSCON_VBASE + U300_SYSCON_PMC1HR); | ||
31 | } | ||
32 | |||
33 | void pmx_set_mission_mode_spi(void) | ||
34 | { | ||
35 | u16 val; | ||
36 | |||
37 | /* Set up padmuxing so the SPI port and its chipselects are active */ | ||
38 | val = readw(U300_SYSCON_VBASE + U300_SYSCON_PMC1HR); | ||
39 | /* | ||
40 | * Activate the SPI port (disable the use of these pins for generic | ||
41 | * GPIO, DSP, AAIF | ||
42 | */ | ||
43 | val &= ~U300_SYSCON_PMC1HR_APP_SPI_2_MASK; | ||
44 | val |= U300_SYSCON_PMC1HR_APP_SPI_2_SPI; | ||
45 | /* | ||
46 | * Use GPIO pin SPI CS1 for CS1 actually (it can be used for other | ||
47 | * things also) | ||
48 | */ | ||
49 | val &= ~U300_SYSCON_PMC1HR_APP_SPI_CS_1_MASK; | ||
50 | val |= U300_SYSCON_PMC1HR_APP_SPI_CS_1_SPI; | ||
51 | /* | ||
52 | * Use GPIO pin SPI CS2 for CS2 actually (it can be used for other | ||
53 | * things also) | ||
54 | */ | ||
55 | val &= ~U300_SYSCON_PMC1HR_APP_SPI_CS_2_MASK; | ||
56 | val |= U300_SYSCON_PMC1HR_APP_SPI_CS_2_SPI; | ||
57 | writew(val, U300_SYSCON_VBASE + U300_SYSCON_PMC1HR); | ||
58 | } | ||
diff --git a/arch/arm/mach-u300/padmux.h b/arch/arm/mach-u300/padmux.h new file mode 100644 index 000000000000..8c2099ac5046 --- /dev/null +++ b/arch/arm/mach-u300/padmux.h | |||
@@ -0,0 +1,19 @@ | |||
1 | /* | ||
2 | * | ||
3 | * arch/arm/mach-u300/padmux.h | ||
4 | * | ||
5 | * | ||
6 | * Copyright (C) 2009 ST-Ericsson AB | ||
7 | * License terms: GNU General Public License (GPL) version 2 | ||
8 | * U300 PADMUX API | ||
9 | * Author: Linus Walleij <linus.walleij@stericsson.com> | ||
10 | * | ||
11 | */ | ||
12 | |||
13 | #ifndef __MACH_U300_PADMUX_H | ||
14 | #define __MACH_U300_PADMUX_H | ||
15 | |||
16 | void pmx_set_mission_mode_mmc(void); | ||
17 | void pmx_set_mission_mode_spi(void); | ||
18 | |||
19 | #endif | ||
diff --git a/arch/arm/mach-u300/timer.c b/arch/arm/mach-u300/timer.c new file mode 100644 index 000000000000..cce53204880e --- /dev/null +++ b/arch/arm/mach-u300/timer.c | |||
@@ -0,0 +1,422 @@ | |||
1 | /* | ||
2 | * | ||
3 | * arch/arm/mach-u300/timer.c | ||
4 | * | ||
5 | * | ||
6 | * Copyright (C) 2007-2009 ST-Ericsson AB | ||
7 | * License terms: GNU General Public License (GPL) version 2 | ||
8 | * Timer COH 901 328, runs the OS timer interrupt. | ||
9 | * Author: Linus Walleij <linus.walleij@stericsson.com> | ||
10 | */ | ||
11 | #include <linux/interrupt.h> | ||
12 | #include <linux/time.h> | ||
13 | #include <linux/timex.h> | ||
14 | #include <linux/clockchips.h> | ||
15 | #include <linux/clocksource.h> | ||
16 | #include <linux/types.h> | ||
17 | #include <linux/io.h> | ||
18 | |||
19 | #include <mach/hardware.h> | ||
20 | |||
21 | /* Generic stuff */ | ||
22 | #include <asm/mach/map.h> | ||
23 | #include <asm/mach/time.h> | ||
24 | #include <asm/mach/irq.h> | ||
25 | |||
26 | #include "clock.h" | ||
27 | |||
28 | /* | ||
29 | * APP side special timer registers | ||
30 | * This timer contains four timers which can fire an interrupt each. | ||
31 | * OS (operating system) timer @ 32768 Hz | ||
32 | * DD (device driver) timer @ 1 kHz | ||
33 | * GP1 (general purpose 1) timer @ 1MHz | ||
34 | * GP2 (general purpose 2) timer @ 1MHz | ||
35 | */ | ||
36 | |||
37 | /* Reset OS Timer 32bit (-/W) */ | ||
38 | #define U300_TIMER_APP_ROST (0x0000) | ||
39 | #define U300_TIMER_APP_ROST_TIMER_RESET (0x00000000) | ||
40 | /* Enable OS Timer 32bit (-/W) */ | ||
41 | #define U300_TIMER_APP_EOST (0x0004) | ||
42 | #define U300_TIMER_APP_EOST_TIMER_ENABLE (0x00000000) | ||
43 | /* Disable OS Timer 32bit (-/W) */ | ||
44 | #define U300_TIMER_APP_DOST (0x0008) | ||
45 | #define U300_TIMER_APP_DOST_TIMER_DISABLE (0x00000000) | ||
46 | /* OS Timer Mode Register 32bit (-/W) */ | ||
47 | #define U300_TIMER_APP_SOSTM (0x000c) | ||
48 | #define U300_TIMER_APP_SOSTM_MODE_CONTINUOUS (0x00000000) | ||
49 | #define U300_TIMER_APP_SOSTM_MODE_ONE_SHOT (0x00000001) | ||
50 | /* OS Timer Status Register 32bit (R/-) */ | ||
51 | #define U300_TIMER_APP_OSTS (0x0010) | ||
52 | #define U300_TIMER_APP_OSTS_TIMER_STATE_MASK (0x0000000F) | ||
53 | #define U300_TIMER_APP_OSTS_TIMER_STATE_IDLE (0x00000001) | ||
54 | #define U300_TIMER_APP_OSTS_TIMER_STATE_ACTIVE (0x00000002) | ||
55 | #define U300_TIMER_APP_OSTS_ENABLE_IND (0x00000010) | ||
56 | #define U300_TIMER_APP_OSTS_MODE_MASK (0x00000020) | ||
57 | #define U300_TIMER_APP_OSTS_MODE_CONTINUOUS (0x00000000) | ||
58 | #define U300_TIMER_APP_OSTS_MODE_ONE_SHOT (0x00000020) | ||
59 | #define U300_TIMER_APP_OSTS_IRQ_ENABLED_IND (0x00000040) | ||
60 | #define U300_TIMER_APP_OSTS_IRQ_PENDING_IND (0x00000080) | ||
61 | /* OS Timer Current Count Register 32bit (R/-) */ | ||
62 | #define U300_TIMER_APP_OSTCC (0x0014) | ||
63 | /* OS Timer Terminal Count Register 32bit (R/W) */ | ||
64 | #define U300_TIMER_APP_OSTTC (0x0018) | ||
65 | /* OS Timer Interrupt Enable Register 32bit (-/W) */ | ||
66 | #define U300_TIMER_APP_OSTIE (0x001c) | ||
67 | #define U300_TIMER_APP_OSTIE_IRQ_DISABLE (0x00000000) | ||
68 | #define U300_TIMER_APP_OSTIE_IRQ_ENABLE (0x00000001) | ||
69 | /* OS Timer Interrupt Acknowledge Register 32bit (-/W) */ | ||
70 | #define U300_TIMER_APP_OSTIA (0x0020) | ||
71 | #define U300_TIMER_APP_OSTIA_IRQ_ACK (0x00000080) | ||
72 | |||
73 | /* Reset DD Timer 32bit (-/W) */ | ||
74 | #define U300_TIMER_APP_RDDT (0x0040) | ||
75 | #define U300_TIMER_APP_RDDT_TIMER_RESET (0x00000000) | ||
76 | /* Enable DD Timer 32bit (-/W) */ | ||
77 | #define U300_TIMER_APP_EDDT (0x0044) | ||
78 | #define U300_TIMER_APP_EDDT_TIMER_ENABLE (0x00000000) | ||
79 | /* Disable DD Timer 32bit (-/W) */ | ||
80 | #define U300_TIMER_APP_DDDT (0x0048) | ||
81 | #define U300_TIMER_APP_DDDT_TIMER_DISABLE (0x00000000) | ||
82 | /* DD Timer Mode Register 32bit (-/W) */ | ||
83 | #define U300_TIMER_APP_SDDTM (0x004c) | ||
84 | #define U300_TIMER_APP_SDDTM_MODE_CONTINUOUS (0x00000000) | ||
85 | #define U300_TIMER_APP_SDDTM_MODE_ONE_SHOT (0x00000001) | ||
86 | /* DD Timer Status Register 32bit (R/-) */ | ||
87 | #define U300_TIMER_APP_DDTS (0x0050) | ||
88 | #define U300_TIMER_APP_DDTS_TIMER_STATE_MASK (0x0000000F) | ||
89 | #define U300_TIMER_APP_DDTS_TIMER_STATE_IDLE (0x00000001) | ||
90 | #define U300_TIMER_APP_DDTS_TIMER_STATE_ACTIVE (0x00000002) | ||
91 | #define U300_TIMER_APP_DDTS_ENABLE_IND (0x00000010) | ||
92 | #define U300_TIMER_APP_DDTS_MODE_MASK (0x00000020) | ||
93 | #define U300_TIMER_APP_DDTS_MODE_CONTINUOUS (0x00000000) | ||
94 | #define U300_TIMER_APP_DDTS_MODE_ONE_SHOT (0x00000020) | ||
95 | #define U300_TIMER_APP_DDTS_IRQ_ENABLED_IND (0x00000040) | ||
96 | #define U300_TIMER_APP_DDTS_IRQ_PENDING_IND (0x00000080) | ||
97 | /* DD Timer Current Count Register 32bit (R/-) */ | ||
98 | #define U300_TIMER_APP_DDTCC (0x0054) | ||
99 | /* DD Timer Terminal Count Register 32bit (R/W) */ | ||
100 | #define U300_TIMER_APP_DDTTC (0x0058) | ||
101 | /* DD Timer Interrupt Enable Register 32bit (-/W) */ | ||
102 | #define U300_TIMER_APP_DDTIE (0x005c) | ||
103 | #define U300_TIMER_APP_DDTIE_IRQ_DISABLE (0x00000000) | ||
104 | #define U300_TIMER_APP_DDTIE_IRQ_ENABLE (0x00000001) | ||
105 | /* DD Timer Interrupt Acknowledge Register 32bit (-/W) */ | ||
106 | #define U300_TIMER_APP_DDTIA (0x0060) | ||
107 | #define U300_TIMER_APP_DDTIA_IRQ_ACK (0x00000080) | ||
108 | |||
109 | /* Reset GP1 Timer 32bit (-/W) */ | ||
110 | #define U300_TIMER_APP_RGPT1 (0x0080) | ||
111 | #define U300_TIMER_APP_RGPT1_TIMER_RESET (0x00000000) | ||
112 | /* Enable GP1 Timer 32bit (-/W) */ | ||
113 | #define U300_TIMER_APP_EGPT1 (0x0084) | ||
114 | #define U300_TIMER_APP_EGPT1_TIMER_ENABLE (0x00000000) | ||
115 | /* Disable GP1 Timer 32bit (-/W) */ | ||
116 | #define U300_TIMER_APP_DGPT1 (0x0088) | ||
117 | #define U300_TIMER_APP_DGPT1_TIMER_DISABLE (0x00000000) | ||
118 | /* GP1 Timer Mode Register 32bit (-/W) */ | ||
119 | #define U300_TIMER_APP_SGPT1M (0x008c) | ||
120 | #define U300_TIMER_APP_SGPT1M_MODE_CONTINUOUS (0x00000000) | ||
121 | #define U300_TIMER_APP_SGPT1M_MODE_ONE_SHOT (0x00000001) | ||
122 | /* GP1 Timer Status Register 32bit (R/-) */ | ||
123 | #define U300_TIMER_APP_GPT1S (0x0090) | ||
124 | #define U300_TIMER_APP_GPT1S_TIMER_STATE_MASK (0x0000000F) | ||
125 | #define U300_TIMER_APP_GPT1S_TIMER_STATE_IDLE (0x00000001) | ||
126 | #define U300_TIMER_APP_GPT1S_TIMER_STATE_ACTIVE (0x00000002) | ||
127 | #define U300_TIMER_APP_GPT1S_ENABLE_IND (0x00000010) | ||
128 | #define U300_TIMER_APP_GPT1S_MODE_MASK (0x00000020) | ||
129 | #define U300_TIMER_APP_GPT1S_MODE_CONTINUOUS (0x00000000) | ||
130 | #define U300_TIMER_APP_GPT1S_MODE_ONE_SHOT (0x00000020) | ||
131 | #define U300_TIMER_APP_GPT1S_IRQ_ENABLED_IND (0x00000040) | ||
132 | #define U300_TIMER_APP_GPT1S_IRQ_PENDING_IND (0x00000080) | ||
133 | /* GP1 Timer Current Count Register 32bit (R/-) */ | ||
134 | #define U300_TIMER_APP_GPT1CC (0x0094) | ||
135 | /* GP1 Timer Terminal Count Register 32bit (R/W) */ | ||
136 | #define U300_TIMER_APP_GPT1TC (0x0098) | ||
137 | /* GP1 Timer Interrupt Enable Register 32bit (-/W) */ | ||
138 | #define U300_TIMER_APP_GPT1IE (0x009c) | ||
139 | #define U300_TIMER_APP_GPT1IE_IRQ_DISABLE (0x00000000) | ||
140 | #define U300_TIMER_APP_GPT1IE_IRQ_ENABLE (0x00000001) | ||
141 | /* GP1 Timer Interrupt Acknowledge Register 32bit (-/W) */ | ||
142 | #define U300_TIMER_APP_GPT1IA (0x00a0) | ||
143 | #define U300_TIMER_APP_GPT1IA_IRQ_ACK (0x00000080) | ||
144 | |||
145 | /* Reset GP2 Timer 32bit (-/W) */ | ||
146 | #define U300_TIMER_APP_RGPT2 (0x00c0) | ||
147 | #define U300_TIMER_APP_RGPT2_TIMER_RESET (0x00000000) | ||
148 | /* Enable GP2 Timer 32bit (-/W) */ | ||
149 | #define U300_TIMER_APP_EGPT2 (0x00c4) | ||
150 | #define U300_TIMER_APP_EGPT2_TIMER_ENABLE (0x00000000) | ||
151 | /* Disable GP2 Timer 32bit (-/W) */ | ||
152 | #define U300_TIMER_APP_DGPT2 (0x00c8) | ||
153 | #define U300_TIMER_APP_DGPT2_TIMER_DISABLE (0x00000000) | ||
154 | /* GP2 Timer Mode Register 32bit (-/W) */ | ||
155 | #define U300_TIMER_APP_SGPT2M (0x00cc) | ||
156 | #define U300_TIMER_APP_SGPT2M_MODE_CONTINUOUS (0x00000000) | ||
157 | #define U300_TIMER_APP_SGPT2M_MODE_ONE_SHOT (0x00000001) | ||
158 | /* GP2 Timer Status Register 32bit (R/-) */ | ||
159 | #define U300_TIMER_APP_GPT2S (0x00d0) | ||
160 | #define U300_TIMER_APP_GPT2S_TIMER_STATE_MASK (0x0000000F) | ||
161 | #define U300_TIMER_APP_GPT2S_TIMER_STATE_IDLE (0x00000001) | ||
162 | #define U300_TIMER_APP_GPT2S_TIMER_STATE_ACTIVE (0x00000002) | ||
163 | #define U300_TIMER_APP_GPT2S_ENABLE_IND (0x00000010) | ||
164 | #define U300_TIMER_APP_GPT2S_MODE_MASK (0x00000020) | ||
165 | #define U300_TIMER_APP_GPT2S_MODE_CONTINUOUS (0x00000000) | ||
166 | #define U300_TIMER_APP_GPT2S_MODE_ONE_SHOT (0x00000020) | ||
167 | #define U300_TIMER_APP_GPT2S_IRQ_ENABLED_IND (0x00000040) | ||
168 | #define U300_TIMER_APP_GPT2S_IRQ_PENDING_IND (0x00000080) | ||
169 | /* GP2 Timer Current Count Register 32bit (R/-) */ | ||
170 | #define U300_TIMER_APP_GPT2CC (0x00d4) | ||
171 | /* GP2 Timer Terminal Count Register 32bit (R/W) */ | ||
172 | #define U300_TIMER_APP_GPT2TC (0x00d8) | ||
173 | /* GP2 Timer Interrupt Enable Register 32bit (-/W) */ | ||
174 | #define U300_TIMER_APP_GPT2IE (0x00dc) | ||
175 | #define U300_TIMER_APP_GPT2IE_IRQ_DISABLE (0x00000000) | ||
176 | #define U300_TIMER_APP_GPT2IE_IRQ_ENABLE (0x00000001) | ||
177 | /* GP2 Timer Interrupt Acknowledge Register 32bit (-/W) */ | ||
178 | #define U300_TIMER_APP_GPT2IA (0x00e0) | ||
179 | #define U300_TIMER_APP_GPT2IA_IRQ_ACK (0x00000080) | ||
180 | |||
181 | /* Clock request control register - all four timers */ | ||
182 | #define U300_TIMER_APP_CRC (0x100) | ||
183 | #define U300_TIMER_APP_CRC_CLOCK_REQUEST_ENABLE (0x00000001) | ||
184 | |||
185 | #define TICKS_PER_JIFFY ((CLOCK_TICK_RATE + (HZ/2)) / HZ) | ||
186 | #define US_PER_TICK ((1000000 + (HZ/2)) / HZ) | ||
187 | |||
188 | /* | ||
189 | * The u300_set_mode() function is always called first, if we | ||
190 | * have oneshot timer active, the oneshot scheduling function | ||
191 | * u300_set_next_event() is called immediately after. | ||
192 | */ | ||
193 | static void u300_set_mode(enum clock_event_mode mode, | ||
194 | struct clock_event_device *evt) | ||
195 | { | ||
196 | switch (mode) { | ||
197 | case CLOCK_EVT_MODE_PERIODIC: | ||
198 | /* Disable interrupts on GPT1 */ | ||
199 | writel(U300_TIMER_APP_GPT1IE_IRQ_DISABLE, | ||
200 | U300_TIMER_APP_VBASE + U300_TIMER_APP_GPT1IE); | ||
201 | /* Disable GP1 while we're reprogramming it. */ | ||
202 | writel(U300_TIMER_APP_DGPT1_TIMER_DISABLE, | ||
203 | U300_TIMER_APP_VBASE + U300_TIMER_APP_DGPT1); | ||
204 | /* | ||
205 | * Set the periodic mode to a certain number of ticks per | ||
206 | * jiffy. | ||
207 | */ | ||
208 | writel(TICKS_PER_JIFFY, | ||
209 | U300_TIMER_APP_VBASE + U300_TIMER_APP_GPT1TC); | ||
210 | /* | ||
211 | * Set continuous mode, so the timer keeps triggering | ||
212 | * interrupts. | ||
213 | */ | ||
214 | writel(U300_TIMER_APP_SGPT1M_MODE_CONTINUOUS, | ||
215 | U300_TIMER_APP_VBASE + U300_TIMER_APP_SGPT1M); | ||
216 | /* Enable timer interrupts */ | ||
217 | writel(U300_TIMER_APP_GPT1IE_IRQ_ENABLE, | ||
218 | U300_TIMER_APP_VBASE + U300_TIMER_APP_GPT1IE); | ||
219 | /* Then enable the OS timer again */ | ||
220 | writel(U300_TIMER_APP_EGPT1_TIMER_ENABLE, | ||
221 | U300_TIMER_APP_VBASE + U300_TIMER_APP_EGPT1); | ||
222 | break; | ||
223 | case CLOCK_EVT_MODE_ONESHOT: | ||
224 | /* Just break; here? */ | ||
225 | /* | ||
226 | * The actual event will be programmed by the next event hook, | ||
227 | * so we just set a dummy value somewhere at the end of the | ||
228 | * universe here. | ||
229 | */ | ||
230 | /* Disable interrupts on GPT1 */ | ||
231 | writel(U300_TIMER_APP_GPT1IE_IRQ_DISABLE, | ||
232 | U300_TIMER_APP_VBASE + U300_TIMER_APP_GPT1IE); | ||
233 | /* Disable GP1 while we're reprogramming it. */ | ||
234 | writel(U300_TIMER_APP_DGPT1_TIMER_DISABLE, | ||
235 | U300_TIMER_APP_VBASE + U300_TIMER_APP_DGPT1); | ||
236 | /* | ||
237 | * Expire far in the future, u300_set_next_event() will be | ||
238 | * called soon... | ||
239 | */ | ||
240 | writel(0xFFFFFFFF, U300_TIMER_APP_VBASE + U300_TIMER_APP_GPT1TC); | ||
241 | /* We run one shot per tick here! */ | ||
242 | writel(U300_TIMER_APP_SGPT1M_MODE_ONE_SHOT, | ||
243 | U300_TIMER_APP_VBASE + U300_TIMER_APP_SGPT1M); | ||
244 | /* Enable interrupts for this timer */ | ||
245 | writel(U300_TIMER_APP_GPT1IE_IRQ_ENABLE, | ||
246 | U300_TIMER_APP_VBASE + U300_TIMER_APP_GPT1IE); | ||
247 | /* Enable timer */ | ||
248 | writel(U300_TIMER_APP_EGPT1_TIMER_ENABLE, | ||
249 | U300_TIMER_APP_VBASE + U300_TIMER_APP_EGPT1); | ||
250 | break; | ||
251 | case CLOCK_EVT_MODE_UNUSED: | ||
252 | case CLOCK_EVT_MODE_SHUTDOWN: | ||
253 | /* Disable interrupts on GP1 */ | ||
254 | writel(U300_TIMER_APP_GPT1IE_IRQ_DISABLE, | ||
255 | U300_TIMER_APP_VBASE + U300_TIMER_APP_GPT1IE); | ||
256 | /* Disable GP1 */ | ||
257 | writel(U300_TIMER_APP_DGPT1_TIMER_DISABLE, | ||
258 | U300_TIMER_APP_VBASE + U300_TIMER_APP_DGPT1); | ||
259 | break; | ||
260 | case CLOCK_EVT_MODE_RESUME: | ||
261 | /* Ignore this call */ | ||
262 | break; | ||
263 | } | ||
264 | } | ||
265 | |||
266 | /* | ||
267 | * The app timer in one shot mode obviously has to be reprogrammed | ||
268 | * in EXACTLY this sequence to work properly. Do NOT try to e.g. replace | ||
269 | * the interrupt disable + timer disable commands with a reset command, | ||
270 | * it will fail miserably. Apparently (and I found this the hard way) | ||
271 | * the timer is very sensitive to the instruction order, though you don't | ||
272 | * get that impression from the data sheet. | ||
273 | */ | ||
274 | static int u300_set_next_event(unsigned long cycles, | ||
275 | struct clock_event_device *evt) | ||
276 | |||
277 | { | ||
278 | /* Disable interrupts on GPT1 */ | ||
279 | writel(U300_TIMER_APP_GPT1IE_IRQ_DISABLE, | ||
280 | U300_TIMER_APP_VBASE + U300_TIMER_APP_GPT1IE); | ||
281 | /* Disable GP1 while we're reprogramming it. */ | ||
282 | writel(U300_TIMER_APP_DGPT1_TIMER_DISABLE, | ||
283 | U300_TIMER_APP_VBASE + U300_TIMER_APP_DGPT1); | ||
284 | /* Reset the General Purpose timer 1. */ | ||
285 | writel(U300_TIMER_APP_RGPT1_TIMER_RESET, | ||
286 | U300_TIMER_APP_VBASE + U300_TIMER_APP_RGPT1); | ||
287 | /* IRQ in n * cycles */ | ||
288 | writel(cycles, U300_TIMER_APP_VBASE + U300_TIMER_APP_GPT1TC); | ||
289 | /* | ||
290 | * We run one shot per tick here! (This is necessary to reconfigure, | ||
291 | * the timer will tilt if you don't!) | ||
292 | */ | ||
293 | writel(U300_TIMER_APP_SGPT1M_MODE_ONE_SHOT, | ||
294 | U300_TIMER_APP_VBASE + U300_TIMER_APP_SGPT1M); | ||
295 | /* Enable timer interrupts */ | ||
296 | writel(U300_TIMER_APP_GPT1IE_IRQ_ENABLE, | ||
297 | U300_TIMER_APP_VBASE + U300_TIMER_APP_GPT1IE); | ||
298 | /* Then enable the OS timer again */ | ||
299 | writel(U300_TIMER_APP_EGPT1_TIMER_ENABLE, | ||
300 | U300_TIMER_APP_VBASE + U300_TIMER_APP_EGPT1); | ||
301 | return 0; | ||
302 | } | ||
303 | |||
304 | |||
305 | /* Use general purpose timer 1 as clock event */ | ||
306 | static struct clock_event_device clockevent_u300_1mhz = { | ||
307 | .name = "GPT1", | ||
308 | .rating = 300, /* Reasonably fast and accurate clock event */ | ||
309 | .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT, | ||
310 | /* 22 calculated using the algorithm in arch/mips/kernel/time.c */ | ||
311 | .shift = 22, | ||
312 | .set_next_event = u300_set_next_event, | ||
313 | .set_mode = u300_set_mode, | ||
314 | }; | ||
315 | |||
316 | /* Clock event timer interrupt handler */ | ||
317 | static irqreturn_t u300_timer_interrupt(int irq, void *dev_id) | ||
318 | { | ||
319 | struct clock_event_device *evt = &clockevent_u300_1mhz; | ||
320 | /* ACK/Clear timer IRQ for the APP GPT1 Timer */ | ||
321 | writel(U300_TIMER_APP_GPT1IA_IRQ_ACK, | ||
322 | U300_TIMER_APP_VBASE + U300_TIMER_APP_GPT1IA); | ||
323 | evt->event_handler(evt); | ||
324 | return IRQ_HANDLED; | ||
325 | } | ||
326 | |||
327 | static struct irqaction u300_timer_irq = { | ||
328 | .name = "U300 Timer Tick", | ||
329 | .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL, | ||
330 | .handler = u300_timer_interrupt, | ||
331 | }; | ||
332 | |||
333 | /* Use general purpose timer 2 as clock source */ | ||
334 | static cycle_t u300_get_cycles(struct clocksource *cs) | ||
335 | { | ||
336 | return (cycles_t) readl(U300_TIMER_APP_VBASE + U300_TIMER_APP_GPT2CC); | ||
337 | } | ||
338 | |||
339 | static struct clocksource clocksource_u300_1mhz = { | ||
340 | .name = "GPT2", | ||
341 | .rating = 300, /* Reasonably fast and accurate clock source */ | ||
342 | .read = u300_get_cycles, | ||
343 | .mask = CLOCKSOURCE_MASK(32), /* 32 bits */ | ||
344 | /* 22 calculated using the algorithm in arch/mips/kernel/time.c */ | ||
345 | .shift = 22, | ||
346 | .flags = CLOCK_SOURCE_IS_CONTINUOUS, | ||
347 | }; | ||
348 | |||
349 | |||
350 | /* | ||
351 | * This sets up the system timers, clock source and clock event. | ||
352 | */ | ||
353 | static void __init u300_timer_init(void) | ||
354 | { | ||
355 | u300_enable_timer_clock(); | ||
356 | /* | ||
357 | * Disable the "OS" and "DD" timers - these are designed for Symbian! | ||
358 | * Example usage in cnh1601578 cpu subsystem pd_timer_app.c | ||
359 | */ | ||
360 | writel(U300_TIMER_APP_CRC_CLOCK_REQUEST_ENABLE, | ||
361 | U300_TIMER_APP_VBASE + U300_TIMER_APP_CRC); | ||
362 | writel(U300_TIMER_APP_ROST_TIMER_RESET, | ||
363 | U300_TIMER_APP_VBASE + U300_TIMER_APP_ROST); | ||
364 | writel(U300_TIMER_APP_DOST_TIMER_DISABLE, | ||
365 | U300_TIMER_APP_VBASE + U300_TIMER_APP_DOST); | ||
366 | writel(U300_TIMER_APP_RDDT_TIMER_RESET, | ||
367 | U300_TIMER_APP_VBASE + U300_TIMER_APP_RDDT); | ||
368 | writel(U300_TIMER_APP_DDDT_TIMER_DISABLE, | ||
369 | U300_TIMER_APP_VBASE + U300_TIMER_APP_DDDT); | ||
370 | |||
371 | /* Reset the General Purpose timer 1. */ | ||
372 | writel(U300_TIMER_APP_RGPT1_TIMER_RESET, | ||
373 | U300_TIMER_APP_VBASE + U300_TIMER_APP_RGPT1); | ||
374 | |||
375 | /* Set up the IRQ handler */ | ||
376 | setup_irq(IRQ_U300_TIMER_APP_GP1, &u300_timer_irq); | ||
377 | |||
378 | /* Reset the General Purpose timer 2 */ | ||
379 | writel(U300_TIMER_APP_RGPT2_TIMER_RESET, | ||
380 | U300_TIMER_APP_VBASE + U300_TIMER_APP_RGPT2); | ||
381 | /* Set this timer to run around forever */ | ||
382 | writel(0xFFFFFFFFU, U300_TIMER_APP_VBASE + U300_TIMER_APP_GPT2TC); | ||
383 | /* Set continuous mode so it wraps around */ | ||
384 | writel(U300_TIMER_APP_SGPT2M_MODE_CONTINUOUS, | ||
385 | U300_TIMER_APP_VBASE + U300_TIMER_APP_SGPT2M); | ||
386 | /* Disable timer interrupts */ | ||
387 | writel(U300_TIMER_APP_GPT2IE_IRQ_DISABLE, | ||
388 | U300_TIMER_APP_VBASE + U300_TIMER_APP_GPT2IE); | ||
389 | /* Then enable the GP2 timer to use as a free running us counter */ | ||
390 | writel(U300_TIMER_APP_EGPT2_TIMER_ENABLE, | ||
391 | U300_TIMER_APP_VBASE + U300_TIMER_APP_EGPT2); | ||
392 | |||
393 | /* This is a pure microsecond clock source */ | ||
394 | clocksource_u300_1mhz.mult = | ||
395 | clocksource_khz2mult(1000, clocksource_u300_1mhz.shift); | ||
396 | if (clocksource_register(&clocksource_u300_1mhz)) | ||
397 | printk(KERN_ERR "timer: failed to initialize clock " | ||
398 | "source %s\n", clocksource_u300_1mhz.name); | ||
399 | |||
400 | clockevent_u300_1mhz.mult = | ||
401 | div_sc(1000000, NSEC_PER_SEC, clockevent_u300_1mhz.shift); | ||
402 | /* 32bit counter, so 32bits delta is max */ | ||
403 | clockevent_u300_1mhz.max_delta_ns = | ||
404 | clockevent_delta2ns(0xffffffff, &clockevent_u300_1mhz); | ||
405 | /* This timer is slow enough to set for 1 cycle == 1 MHz */ | ||
406 | clockevent_u300_1mhz.min_delta_ns = | ||
407 | clockevent_delta2ns(1, &clockevent_u300_1mhz); | ||
408 | clockevent_u300_1mhz.cpumask = cpumask_of(0); | ||
409 | clockevents_register_device(&clockevent_u300_1mhz); | ||
410 | /* | ||
411 | * TODO: init and register the rest of the timers too, they can be | ||
412 | * used by hrtimers! | ||
413 | */ | ||
414 | } | ||
415 | |||
416 | /* | ||
417 | * Very simple system timer that only register the clock event and | ||
418 | * clock source. | ||
419 | */ | ||
420 | struct sys_timer u300_timer = { | ||
421 | .init = u300_timer_init, | ||
422 | }; | ||
diff --git a/arch/arm/mach-u300/u300.c b/arch/arm/mach-u300/u300.c new file mode 100644 index 000000000000..d2a0b8847a18 --- /dev/null +++ b/arch/arm/mach-u300/u300.c | |||
@@ -0,0 +1,55 @@ | |||
1 | /* | ||
2 | * | ||
3 | * arch/arm/mach-u300/u300.c | ||
4 | * | ||
5 | * | ||
6 | * Copyright (C) 2006-2009 ST-Ericsson AB | ||
7 | * License terms: GNU General Public License (GPL) version 2 | ||
8 | * Platform machine definition. | ||
9 | * Author: Linus Walleij <linus.walleij@stericsson.com> | ||
10 | */ | ||
11 | #include <linux/kernel.h> | ||
12 | #include <linux/init.h> | ||
13 | #include <linux/mm.h> | ||
14 | #include <linux/sched.h> | ||
15 | #include <linux/interrupt.h> | ||
16 | #include <linux/ioport.h> | ||
17 | #include <linux/platform_device.h> | ||
18 | #include <linux/io.h> | ||
19 | #include <mach/hardware.h> | ||
20 | #include <mach/platform.h> | ||
21 | #include <mach/memory.h> | ||
22 | #include <asm/mach-types.h> | ||
23 | #include <asm/mach/arch.h> | ||
24 | |||
25 | static void __init u300_init_machine(void) | ||
26 | { | ||
27 | u300_init_devices(); | ||
28 | } | ||
29 | |||
30 | #ifdef CONFIG_MACH_U300_BS2X | ||
31 | #define MACH_U300_STRING "Ericsson AB U300 S25/S26/B25/B26 Prototype Board" | ||
32 | #endif | ||
33 | |||
34 | #ifdef CONFIG_MACH_U300_BS330 | ||
35 | #define MACH_U300_STRING "Ericsson AB U330 S330/B330 Prototype Board" | ||
36 | #endif | ||
37 | |||
38 | #ifdef CONFIG_MACH_U300_BS335 | ||
39 | #define MACH_U300_STRING "Ericsson AB U335 S335/B335 Prototype Board" | ||
40 | #endif | ||
41 | |||
42 | #ifdef CONFIG_MACH_U300_BS365 | ||
43 | #define MACH_U300_STRING "Ericsson AB U365 S365/B365 Prototype Board" | ||
44 | #endif | ||
45 | |||
46 | MACHINE_START(U300, MACH_U300_STRING) | ||
47 | /* Maintainer: Linus Walleij <linus.walleij@stericsson.com> */ | ||
48 | .phys_io = U300_AHB_PER_PHYS_BASE, | ||
49 | .io_pg_offst = ((U300_AHB_PER_VIRT_BASE) >> 18) & 0xfffc, | ||
50 | .boot_params = BOOT_PARAMS_OFFSET, | ||
51 | .map_io = u300_map_io, | ||
52 | .init_irq = u300_init_irq, | ||
53 | .timer = &u300_timer, | ||
54 | .init_machine = u300_init_machine, | ||
55 | MACHINE_END | ||