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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-09 16:05:57 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-09 16:05:57 -0400
commit932c37c375cca25175f9b6acee4c75d7a96d985f (patch)
treed7ba3620cd9a7a21c2de1bdfc7badd7637ed635e /arch/arm/plat-omap
parentc855ff3718e5f667b463b20b9de516b4cd7625ad (diff)
parent805f53f085346b6765eda02820721a14ce0d644f (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: (28 commits) ARM: OMAP: Fix GCC-reported compile time bug ARM: OMAP: restore CONFIG_GENERIC_TIME ARM: OMAP: partial LED fixes ARM: OMAP: add SoSSI clock (call propagate_rate for childrens) ARM: OMAP: FB sync with N800 tree (support for dynamic SRAM allocations) ARM: OMAP: Sync framebuffer headers with N800 tree ARM: OMAP: Mostly cosmetic to sync up with linux-omap tree ARM: OMAP: Fix gpmc header ARM: OMAP: Add mailbox support for IVA [ARM] armv7: add Makefile and Kconfig entries [ARM] armv7: add support for asid-tagged VIVT I-cache [ARM] armv7: add dedicated ARMv7 barrier instructions [ARM] armv7: Add ARMv7 cacheid macros [ARM] armv7: add support for ARMv7 cores. [ARM] Fix ARM branch relocation range [ARM] 4363/1: AT91: Remove legacy PIO definitions [ARM] 4361/1: AT91: Build error ARM: OMAP: Sync core code with linux-omap ARM: OMAP: Sync headers with linux-omap ARM: OMAP: h4 must have blinky leds!! ...
Diffstat (limited to 'arch/arm/plat-omap')
-rw-r--r--arch/arm/plat-omap/Kconfig13
-rw-r--r--arch/arm/plat-omap/Makefile5
-rw-r--r--arch/arm/plat-omap/clock.c37
-rw-r--r--arch/arm/plat-omap/common.c8
-rw-r--r--arch/arm/plat-omap/debug-leds.c314
-rw-r--r--arch/arm/plat-omap/devices.c74
-rw-r--r--arch/arm/plat-omap/dma.c25
-rw-r--r--arch/arm/plat-omap/dmtimer.c2
-rw-r--r--arch/arm/plat-omap/fb.c305
-rw-r--r--arch/arm/plat-omap/gpio.c3
-rw-r--r--arch/arm/plat-omap/mailbox.c509
-rw-r--r--arch/arm/plat-omap/mailbox.h100
-rw-r--r--arch/arm/plat-omap/sram.c56
-rw-r--r--arch/arm/plat-omap/usb.c199
14 files changed, 1532 insertions, 118 deletions
diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig
index 9e8d21eca4ec..cfc69f3842fd 100644
--- a/arch/arm/plat-omap/Kconfig
+++ b/arch/arm/plat-omap/Kconfig
@@ -20,6 +20,11 @@ endchoice
20 20
21comment "OMAP Feature Selections" 21comment "OMAP Feature Selections"
22 22
23config OMAP_DEBUG_LEDS
24 bool
25 help
26 For debug card leds on TI reference boards.
27
23config OMAP_RESET_CLOCKS 28config OMAP_RESET_CLOCKS
24 bool "Reset unused clocks during boot" 29 bool "Reset unused clocks during boot"
25 depends on ARCH_OMAP 30 depends on ARCH_OMAP
@@ -58,6 +63,14 @@ config OMAP_MUX_WARNINGS
58 to change the pin multiplexing setup. When there are no warnings 63 to change the pin multiplexing setup. When there are no warnings
59 printed, it's safe to deselect OMAP_MUX for your product. 64 printed, it's safe to deselect OMAP_MUX for your product.
60 65
66config OMAP_MCBSP
67 bool "McBSP support"
68 depends on ARCH_OMAP
69 default y
70 help
71 Say Y here if you want support for the OMAP Multichannel
72 Buffered Serial Port.
73
61choice 74choice
62 prompt "System timer" 75 prompt "System timer"
63 default OMAP_MPU_TIMER 76 default OMAP_MPU_TIMER
diff --git a/arch/arm/plat-omap/Makefile b/arch/arm/plat-omap/Makefile
index 2896b4546411..41a3c1cf3bd4 100644
--- a/arch/arm/plat-omap/Makefile
+++ b/arch/arm/plat-omap/Makefile
@@ -3,7 +3,8 @@
3# 3#
4 4
5# Common support 5# Common support
6obj-y := common.o sram.o sram-fn.o clock.o devices.o dma.o mux.o gpio.o mcbsp.o usb.o fb.o 6obj-y := common.o sram.o sram-fn.o clock.o devices.o dma.o mux.o gpio.o \
7 usb.o fb.o
7obj-m := 8obj-m :=
8obj-n := 9obj-n :=
9obj- := 10obj- :=
@@ -16,4 +17,4 @@ obj-$(CONFIG_ARCH_OMAP16XX) += ocpi.o
16 17
17obj-$(CONFIG_CPU_FREQ) += cpu-omap.o 18obj-$(CONFIG_CPU_FREQ) += cpu-omap.o
18obj-$(CONFIG_OMAP_DM_TIMER) += dmtimer.o 19obj-$(CONFIG_OMAP_DM_TIMER) += dmtimer.o
19 20obj-$(CONFIG_OMAP_DEBUG_LEDS) += debug-leds.o
diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c
index f1179ad4be1b..0a603242f367 100644
--- a/arch/arm/plat-omap/clock.c
+++ b/arch/arm/plat-omap/clock.c
@@ -33,6 +33,41 @@ static DEFINE_SPINLOCK(clockfw_lock);
33 33
34static struct clk_functions *arch_clock; 34static struct clk_functions *arch_clock;
35 35
36#ifdef CONFIG_PM_DEBUG
37
38static void print_parents(struct clk *clk)
39{
40 struct clk *p;
41 int printed = 0;
42
43 list_for_each_entry(p, &clocks, node) {
44 if (p->parent == clk && p->usecount) {
45 if (!clk->usecount && !printed) {
46 printk("MISMATCH: %s\n", clk->name);
47 printed = 1;
48 }
49 printk("\t%-15s\n", p->name);
50 }
51 }
52}
53
54void clk_print_usecounts(void)
55{
56 unsigned long flags;
57 struct clk *p;
58
59 spin_lock_irqsave(&clockfw_lock, flags);
60 list_for_each_entry(p, &clocks, node) {
61 if (p->usecount)
62 printk("%-15s: %d\n", p->name, p->usecount);
63 print_parents(p);
64
65 }
66 spin_unlock_irqrestore(&clockfw_lock, flags);
67}
68
69#endif
70
36/*------------------------------------------------------------------------- 71/*-------------------------------------------------------------------------
37 * Standard clock functions defined in include/linux/clk.h 72 * Standard clock functions defined in include/linux/clk.h
38 *-------------------------------------------------------------------------*/ 73 *-------------------------------------------------------------------------*/
@@ -249,6 +284,8 @@ void followparent_recalc(struct clk *clk)
249 return; 284 return;
250 285
251 clk->rate = clk->parent->rate; 286 clk->rate = clk->parent->rate;
287 if (unlikely(clk->flags & RATE_PROPAGATES))
288 propagate_rate(clk);
252} 289}
253 290
254/* Propagate rate to children */ 291/* Propagate rate to children */
diff --git a/arch/arm/plat-omap/common.c b/arch/arm/plat-omap/common.c
index fecd3d625995..dd8708ad0a71 100644
--- a/arch/arm/plat-omap/common.c
+++ b/arch/arm/plat-omap/common.c
@@ -93,8 +93,12 @@ static const void *get_config(u16 tag, size_t len, int skip, size_t *len_out)
93 * in the kernel. */ 93 * in the kernel. */
94 for (i = 0; i < omap_board_config_size; i++) { 94 for (i = 0; i < omap_board_config_size; i++) {
95 if (omap_board_config[i].tag == tag) { 95 if (omap_board_config[i].tag == tag) {
96 kinfo = &omap_board_config[i]; 96 if (skip == 0) {
97 break; 97 kinfo = &omap_board_config[i];
98 break;
99 } else {
100 skip--;
101 }
98 } 102 }
99 } 103 }
100 if (kinfo == NULL) 104 if (kinfo == NULL)
diff --git a/arch/arm/plat-omap/debug-leds.c b/arch/arm/plat-omap/debug-leds.c
new file mode 100644
index 000000000000..9128a80d228f
--- /dev/null
+++ b/arch/arm/plat-omap/debug-leds.c
@@ -0,0 +1,314 @@
1/*
2 * linux/arch/arm/plat-omap/debug-leds.c
3 *
4 * Copyright 2003 by Texas Instruments Incorporated
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 version 2 as
8 * published by the Free Software Foundation.
9 */
10
11#include <linux/init.h>
12#include <linux/platform_device.h>
13#include <linux/leds.h>
14
15#include <asm/io.h>
16#include <asm/hardware.h>
17#include <asm/leds.h>
18#include <asm/system.h>
19#include <asm/mach-types.h>
20
21#include <asm/arch/fpga.h>
22#include <asm/arch/gpio.h>
23
24
25/* Many OMAP development platforms reuse the same "debug board"; these
26 * platforms include H2, H3, H4, and Perseus2. There are 16 LEDs on the
27 * debug board (all green), accessed through FPGA registers.
28 *
29 * The "surfer" expansion board and H2 sample board also have two-color
30 * green+red LEDs (in parallel), used here for timer and idle indicators
31 * in preference to the ones on the debug board, for a "Disco LED" effect.
32 *
33 * This driver exports either the original ARM LED API, the new generic
34 * one, or both.
35 */
36
37static spinlock_t lock;
38static struct h2p2_dbg_fpga __iomem *fpga;
39static u16 led_state, hw_led_state;
40
41
42#ifdef CONFIG_LEDS_OMAP_DEBUG
43#define new_led_api() 1
44#else
45#define new_led_api() 0
46#endif
47
48
49/*-------------------------------------------------------------------------*/
50
51/* original ARM debug LED API:
52 * - timer and idle leds (some boards use non-FPGA leds here);
53 * - up to 4 generic leds, easily accessed in-kernel (any context)
54 */
55
56#define GPIO_LED_RED 3
57#define GPIO_LED_GREEN OMAP_MPUIO(4)
58
59#define LED_STATE_ENABLED 0x01
60#define LED_STATE_CLAIMED 0x02
61#define LED_TIMER_ON 0x04
62
63#define GPIO_IDLE GPIO_LED_GREEN
64#define GPIO_TIMER GPIO_LED_RED
65
66static void h2p2_dbg_leds_event(led_event_t evt)
67{
68 unsigned long flags;
69
70 spin_lock_irqsave(&lock, flags);
71
72 if (!(led_state & LED_STATE_ENABLED) && evt != led_start)
73 goto done;
74
75 switch (evt) {
76 case led_start:
77 if (fpga)
78 led_state |= LED_STATE_ENABLED;
79 break;
80
81 case led_stop:
82 case led_halted:
83 /* all leds off during suspend or shutdown */
84
85 if (!(machine_is_omap_perseus2() || machine_is_omap_h4())) {
86 omap_set_gpio_dataout(GPIO_TIMER, 0);
87 omap_set_gpio_dataout(GPIO_IDLE, 0);
88 }
89
90 __raw_writew(~0, &fpga->leds);
91 led_state &= ~LED_STATE_ENABLED;
92 goto done;
93
94 case led_claim:
95 led_state |= LED_STATE_CLAIMED;
96 hw_led_state = 0;
97 break;
98
99 case led_release:
100 led_state &= ~LED_STATE_CLAIMED;
101 break;
102
103#ifdef CONFIG_LEDS_TIMER
104 case led_timer:
105 led_state ^= LED_TIMER_ON;
106
107 if (machine_is_omap_perseus2() || machine_is_omap_h4())
108 hw_led_state ^= H2P2_DBG_FPGA_P2_LED_TIMER;
109 else {
110 omap_set_gpio_dataout(GPIO_TIMER,
111 led_state & LED_TIMER_ON);
112 goto done;
113 }
114
115 break;
116#endif
117
118#ifdef CONFIG_LEDS_CPU
119 /* LED lit iff busy */
120 case led_idle_start:
121 if (machine_is_omap_perseus2() || machine_is_omap_h4())
122 hw_led_state &= ~H2P2_DBG_FPGA_P2_LED_IDLE;
123 else {
124 omap_set_gpio_dataout(GPIO_IDLE, 1);
125 goto done;
126 }
127
128 break;
129
130 case led_idle_end:
131 if (machine_is_omap_perseus2() || machine_is_omap_h4())
132 hw_led_state |= H2P2_DBG_FPGA_P2_LED_IDLE;
133 else {
134 omap_set_gpio_dataout(GPIO_IDLE, 0);
135 goto done;
136 }
137
138 break;
139#endif
140
141 case led_green_on:
142 hw_led_state |= H2P2_DBG_FPGA_LED_GREEN;
143 break;
144 case led_green_off:
145 hw_led_state &= ~H2P2_DBG_FPGA_LED_GREEN;
146 break;
147
148 case led_amber_on:
149 hw_led_state |= H2P2_DBG_FPGA_LED_AMBER;
150 break;
151 case led_amber_off:
152 hw_led_state &= ~H2P2_DBG_FPGA_LED_AMBER;
153 break;
154
155 case led_red_on:
156 hw_led_state |= H2P2_DBG_FPGA_LED_RED;
157 break;
158 case led_red_off:
159 hw_led_state &= ~H2P2_DBG_FPGA_LED_RED;
160 break;
161
162 case led_blue_on:
163 hw_led_state |= H2P2_DBG_FPGA_LED_BLUE;
164 break;
165 case led_blue_off:
166 hw_led_state &= ~H2P2_DBG_FPGA_LED_BLUE;
167 break;
168
169 default:
170 break;
171 }
172
173
174 /*
175 * Actually burn the LEDs
176 */
177 if (led_state & LED_STATE_ENABLED)
178 __raw_writew(~hw_led_state, &fpga->leds);
179
180done:
181 spin_unlock_irqrestore(&lock, flags);
182}
183
184/*-------------------------------------------------------------------------*/
185
186/* "new" LED API
187 * - with syfs access and generic triggering
188 * - not readily accessible to in-kernel drivers
189 */
190
191struct dbg_led {
192 struct led_classdev cdev;
193 u16 mask;
194};
195
196static struct dbg_led dbg_leds[] = {
197 /* REVISIT at least H2 uses different timer & cpu leds... */
198#ifndef CONFIG_LEDS_TIMER
199 { .mask = 1 << 0, .cdev.name = "d4:green",
200 .cdev.default_trigger = "heartbeat", },
201#endif
202#ifndef CONFIG_LEDS_CPU
203 { .mask = 1 << 1, .cdev.name = "d5:green", }, /* !idle */
204#endif
205 { .mask = 1 << 2, .cdev.name = "d6:green", },
206 { .mask = 1 << 3, .cdev.name = "d7:green", },
207
208 { .mask = 1 << 4, .cdev.name = "d8:green", },
209 { .mask = 1 << 5, .cdev.name = "d9:green", },
210 { .mask = 1 << 6, .cdev.name = "d10:green", },
211 { .mask = 1 << 7, .cdev.name = "d11:green", },
212
213 { .mask = 1 << 8, .cdev.name = "d12:green", },
214 { .mask = 1 << 9, .cdev.name = "d13:green", },
215 { .mask = 1 << 10, .cdev.name = "d14:green", },
216 { .mask = 1 << 11, .cdev.name = "d15:green", },
217
218#ifndef CONFIG_LEDS
219 { .mask = 1 << 12, .cdev.name = "d16:green", },
220 { .mask = 1 << 13, .cdev.name = "d17:green", },
221 { .mask = 1 << 14, .cdev.name = "d18:green", },
222 { .mask = 1 << 15, .cdev.name = "d19:green", },
223#endif
224};
225
226static void
227fpga_led_set(struct led_classdev *cdev, enum led_brightness value)
228{
229 struct dbg_led *led = container_of(cdev, struct dbg_led, cdev);
230 unsigned long flags;
231
232 spin_lock_irqsave(&lock, flags);
233 if (value == LED_OFF)
234 hw_led_state &= ~led->mask;
235 else
236 hw_led_state |= led->mask;
237 __raw_writew(~hw_led_state, &fpga->leds);
238 spin_unlock_irqrestore(&lock, flags);
239}
240
241static void __init newled_init(struct device *dev)
242{
243 unsigned i;
244 struct dbg_led *led;
245 int status;
246
247 for (i = 0, led = dbg_leds; i < ARRAY_SIZE(dbg_leds); i++, led++) {
248 led->cdev.brightness_set = fpga_led_set;
249 status = led_classdev_register(dev, &led->cdev);
250 if (status < 0)
251 break;
252 }
253 return;
254}
255
256
257/*-------------------------------------------------------------------------*/
258
259static int /* __init */ fpga_probe(struct platform_device *pdev)
260{
261 struct resource *iomem;
262
263 spin_lock_init(&lock);
264
265 iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
266 if (!iomem)
267 return -ENODEV;
268
269 fpga = ioremap(iomem->start, H2P2_DBG_FPGA_SIZE);
270 __raw_writew(~0, &fpga->leds);
271
272#ifdef CONFIG_LEDS
273 leds_event = h2p2_dbg_leds_event;
274 leds_event(led_start);
275#endif
276
277 if (new_led_api()) {
278 newled_init(&pdev->dev);
279 }
280
281 return 0;
282}
283
284static int fpga_suspend_late(struct platform_device *pdev, pm_message_t mesg)
285{
286 __raw_writew(~0, &fpga->leds);
287 return 0;
288}
289
290static int fpga_resume_early(struct platform_device *pdev)
291{
292 __raw_writew(~hw_led_state, &fpga->leds);
293 return 0;
294}
295
296
297static struct platform_driver led_driver = {
298 .driver.name = "omap_dbg_led",
299 .probe = fpga_probe,
300 .suspend_late = fpga_suspend_late,
301 .resume_early = fpga_resume_early,
302};
303
304static int __init fpga_init(void)
305{
306 if (machine_is_omap_h4()
307 || machine_is_omap_h3()
308 || machine_is_omap_h2()
309 || machine_is_omap_perseus2()
310 )
311 return platform_driver_register(&led_driver);
312 return 0;
313}
314fs_initcall(fpga_init);
diff --git a/arch/arm/plat-omap/devices.c b/arch/arm/plat-omap/devices.c
index eeb33fed6f7c..c5dab1d6417e 100644
--- a/arch/arm/plat-omap/devices.c
+++ b/arch/arm/plat-omap/devices.c
@@ -25,7 +25,71 @@
25#include <asm/arch/gpio.h> 25#include <asm/arch/gpio.h>
26#include <asm/arch/menelaus.h> 26#include <asm/arch/menelaus.h>
27 27
28#if defined(CONFIG_I2C_OMAP) || defined(CONFIG_I2C_OMAP_MODULE) 28#if defined(CONFIG_OMAP_DSP) || defined(CONFIG_OMAP_DSP_MODULE)
29
30#include "../plat-omap/dsp/dsp_common.h"
31
32static struct dsp_platform_data dsp_pdata = {
33 .kdev_list = LIST_HEAD_INIT(dsp_pdata.kdev_list),
34};
35
36static struct resource omap_dsp_resources[] = {
37 {
38 .name = "dsp_mmu",
39 .start = -1,
40 .flags = IORESOURCE_IRQ,
41 },
42};
43
44static struct platform_device omap_dsp_device = {
45 .name = "dsp",
46 .id = -1,
47 .num_resources = ARRAY_SIZE(omap_dsp_resources),
48 .resource = omap_dsp_resources,
49 .dev = {
50 .platform_data = &dsp_pdata,
51 },
52};
53
54static inline void omap_init_dsp(void)
55{
56 struct resource *res;
57 int irq;
58
59 if (cpu_is_omap15xx())
60 irq = INT_1510_DSP_MMU;
61 else if (cpu_is_omap16xx())
62 irq = INT_1610_DSP_MMU;
63 else if (cpu_is_omap24xx())
64 irq = INT_24XX_DSP_MMU;
65
66 res = platform_get_resource_byname(&omap_dsp_device,
67 IORESOURCE_IRQ, "dsp_mmu");
68 res->start = irq;
69
70 platform_device_register(&omap_dsp_device);
71}
72
73int dsp_kfunc_device_register(struct dsp_kfunc_device *kdev)
74{
75 static DEFINE_MUTEX(dsp_pdata_lock);
76
77 mutex_init(&kdev->lock);
78
79 mutex_lock(&dsp_pdata_lock);
80 list_add_tail(&kdev->entry, &dsp_pdata.kdev_list);
81 mutex_unlock(&dsp_pdata_lock);
82
83 return 0;
84}
85EXPORT_SYMBOL(dsp_kfunc_device_register);
86
87#else
88static inline void omap_init_dsp(void) { }
89#endif /* CONFIG_OMAP_DSP */
90
91/*-------------------------------------------------------------------------*/
92#if defined(CONFIG_I2C_OMAP) || defined(CONFIG_I2C_OMAP_MODULE)
29 93
30#define OMAP1_I2C_BASE 0xfffb3800 94#define OMAP1_I2C_BASE 0xfffb3800
31#define OMAP2_I2C_BASE1 0x48070000 95#define OMAP2_I2C_BASE1 0x48070000
@@ -48,8 +112,8 @@ static struct resource i2c_resources1[] = {
48/* DMA not used; works around erratum writing to non-empty i2c fifo */ 112/* DMA not used; works around erratum writing to non-empty i2c fifo */
49 113
50static struct platform_device omap_i2c_device1 = { 114static struct platform_device omap_i2c_device1 = {
51 .name = "i2c_omap", 115 .name = "i2c_omap",
52 .id = 1, 116 .id = 1,
53 .num_resources = ARRAY_SIZE(i2c_resources1), 117 .num_resources = ARRAY_SIZE(i2c_resources1),
54 .resource = i2c_resources1, 118 .resource = i2c_resources1,
55}; 119};
@@ -376,7 +440,7 @@ static inline void omap_init_wdt(void) {}
376 440
377/*-------------------------------------------------------------------------*/ 441/*-------------------------------------------------------------------------*/
378 442
379#if defined(CONFIG_OMAP_RNG) || defined(CONFIG_OMAP_RNG_MODULE) 443#if defined(CONFIG_HW_RANDOM_OMAP) || defined(CONFIG_HW_RANDOM_OMAP_MODULE)
380 444
381#ifdef CONFIG_ARCH_OMAP24XX 445#ifdef CONFIG_ARCH_OMAP24XX
382#define OMAP_RNG_BASE 0x480A0000 446#define OMAP_RNG_BASE 0x480A0000
@@ -436,6 +500,7 @@ static int __init omap_init_devices(void)
436 /* please keep these calls, and their implementations above, 500 /* please keep these calls, and their implementations above,
437 * in alphabetical order so they're easier to sort through. 501 * in alphabetical order so they're easier to sort through.
438 */ 502 */
503 omap_init_dsp();
439 omap_init_i2c(); 504 omap_init_i2c();
440 omap_init_kp(); 505 omap_init_kp();
441 omap_init_mmc(); 506 omap_init_mmc();
@@ -446,4 +511,3 @@ static int __init omap_init_devices(void)
446 return 0; 511 return 0;
447} 512}
448arch_initcall(omap_init_devices); 513arch_initcall(omap_init_devices);
449
diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
index f3f84fbf8b87..2d86b106ff3e 100644
--- a/arch/arm/plat-omap/dma.c
+++ b/arch/arm/plat-omap/dma.c
@@ -925,10 +925,17 @@ static int omap2_dma_handle_ch(int ch)
925{ 925{
926 u32 status = OMAP_DMA_CSR_REG(ch); 926 u32 status = OMAP_DMA_CSR_REG(ch);
927 927
928 if (!status) 928 if (!status) {
929 if (printk_ratelimit())
930 printk(KERN_WARNING "Spurious DMA IRQ for lch %d\n", ch);
929 return 0; 931 return 0;
930 if (unlikely(dma_chan[ch].dev_id == -1)) 932 }
933 if (unlikely(dma_chan[ch].dev_id == -1)) {
934 if (printk_ratelimit())
935 printk(KERN_WARNING "IRQ %04x for non-allocated DMA"
936 "channel %d\n", status, ch);
931 return 0; 937 return 0;
938 }
932 if (unlikely(status & OMAP_DMA_DROP_IRQ)) 939 if (unlikely(status & OMAP_DMA_DROP_IRQ))
933 printk(KERN_INFO 940 printk(KERN_INFO
934 "DMA synchronization event drop occurred with device " 941 "DMA synchronization event drop occurred with device "
@@ -959,11 +966,15 @@ static irqreturn_t omap2_dma_irq_handler(int irq, void *dev_id)
959 int i; 966 int i;
960 967
961 val = omap_readl(OMAP_DMA4_IRQSTATUS_L0); 968 val = omap_readl(OMAP_DMA4_IRQSTATUS_L0);
962 969 if (val == 0) {
963 for (i = 1; i <= OMAP_LOGICAL_DMA_CH_COUNT; i++) { 970 if (printk_ratelimit())
964 int active = val & (1 << (i - 1)); 971 printk(KERN_WARNING "Spurious DMA IRQ\n");
965 if (active) 972 return IRQ_HANDLED;
966 omap2_dma_handle_ch(i - 1); 973 }
974 for (i = 0; i < OMAP_LOGICAL_DMA_CH_COUNT && val != 0; i++) {
975 if (val & 1)
976 omap2_dma_handle_ch(i);
977 val >>= 1;
967 } 978 }
968 979
969 return IRQ_HANDLED; 980 return IRQ_HANDLED;
diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c
index 659619f235ca..36073dfaa4db 100644
--- a/arch/arm/plat-omap/dmtimer.c
+++ b/arch/arm/plat-omap/dmtimer.c
@@ -372,7 +372,7 @@ void omap_dm_timer_set_source(struct omap_dm_timer *timer, int source)
372 372
373 /* When the functional clock disappears, too quick writes seem to 373 /* When the functional clock disappears, too quick writes seem to
374 * cause an abort. */ 374 * cause an abort. */
375 __delay(15000); 375 __delay(150000);
376} 376}
377 377
378#endif 378#endif
diff --git a/arch/arm/plat-omap/fb.c b/arch/arm/plat-omap/fb.c
index 56acb8720f78..4493bcff5172 100644
--- a/arch/arm/plat-omap/fb.c
+++ b/arch/arm/plat-omap/fb.c
@@ -1,3 +1,26 @@
1/*
2 * File: arch/arm/plat-omap/fb.c
3 *
4 * Framebuffer device registration for TI OMAP platforms
5 *
6 * Copyright (C) 2006 Nokia Corporation
7 * Author: Imre Deak <imre.deak@nokia.com>
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; either version 2 of the License, or (at your
12 * option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License along
20 * with this program; if not, write to the Free Software Foundation, Inc.,
21 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22 */
23
1#include <linux/module.h> 24#include <linux/module.h>
2#include <linux/kernel.h> 25#include <linux/kernel.h>
3#include <linux/init.h> 26#include <linux/init.h>
@@ -16,6 +39,8 @@
16#if defined(CONFIG_FB_OMAP) || defined(CONFIG_FB_OMAP_MODULE) 39#if defined(CONFIG_FB_OMAP) || defined(CONFIG_FB_OMAP_MODULE)
17 40
18static struct omapfb_platform_data omapfb_config; 41static struct omapfb_platform_data omapfb_config;
42static int config_invalid;
43static int configured_regions;
19 44
20static u64 omap_fb_dma_mask = ~(u32)0; 45static u64 omap_fb_dma_mask = ~(u32)0;
21 46
@@ -30,39 +55,270 @@ static struct platform_device omap_fb_device = {
30 .num_resources = 0, 55 .num_resources = 0,
31}; 56};
32 57
33/* called from map_io */ 58static inline int ranges_overlap(unsigned long start1, unsigned long size1,
34void omapfb_reserve_mem(void) 59 unsigned long start2, unsigned long size2)
35{ 60{
36 const struct omap_fbmem_config *fbmem_conf; 61 return (start1 >= start2 && start1 < start2 + size2) ||
62 (start2 >= start1 && start2 < start1 + size1);
63}
37 64
38 omapfb_config.fbmem.fb_sram_start = omap_fb_sram_start; 65static inline int range_included(unsigned long start1, unsigned long size1,
39 omapfb_config.fbmem.fb_sram_size = omap_fb_sram_size; 66 unsigned long start2, unsigned long size2)
67{
68 return start1 >= start2 && start1 + size1 <= start2 + size2;
69}
40 70
41 fbmem_conf = omap_get_config(OMAP_TAG_FBMEM, struct omap_fbmem_config);
42 71
43 if (fbmem_conf != NULL) { 72/* Check if there is an overlapping region. */
44 /* indicate that the bootloader already initialized the 73static int fbmem_region_reserved(unsigned long start, size_t size)
45 * fb device, so we'll skip that part in the fb driver 74{
46 */ 75 struct omapfb_mem_region *rg;
47 omapfb_config.fbmem.fb_sdram_start = fbmem_conf->fb_sdram_start; 76 int i;
48 omapfb_config.fbmem.fb_sdram_size = fbmem_conf->fb_sdram_size; 77
49 if (fbmem_conf->fb_sdram_size) { 78 rg = &omapfb_config.mem_desc.region[0];
50 pr_info("Reserving %u bytes SDRAM for frame buffer\n", 79 for (i = 0; i < OMAPFB_PLANE_NUM; i++, rg++) {
51 fbmem_conf->fb_sdram_size); 80 if (!rg->paddr)
52 reserve_bootmem(fbmem_conf->fb_sdram_start, 81 /* Empty slot. */
53 fbmem_conf->fb_sdram_size); 82 continue;
83 if (ranges_overlap(start, size, rg->paddr, rg->size))
84 return 1;
85 }
86 return 0;
87}
88
89/*
90 * Get the region_idx`th region from board config/ATAG and convert it to
91 * our internal format.
92 */
93static int get_fbmem_region(int region_idx, struct omapfb_mem_region *rg)
94{
95 const struct omap_fbmem_config *conf;
96 u32 paddr;
97
98 conf = omap_get_nr_config(OMAP_TAG_FBMEM,
99 struct omap_fbmem_config, region_idx);
100 if (conf == NULL)
101 return -ENOENT;
102
103 paddr = conf->start;
104 /*
105 * Low bits encode the page allocation mode, if high bits
106 * are zero. Otherwise we need a page aligned fixed
107 * address.
108 */
109 memset(rg, 0, sizeof(*rg));
110 rg->type = paddr & ~PAGE_MASK;
111 rg->paddr = paddr & PAGE_MASK;
112 rg->size = PAGE_ALIGN(conf->size);
113 return 0;
114}
115
116static int set_fbmem_region_type(struct omapfb_mem_region *rg, int mem_type,
117 unsigned long mem_start,
118 unsigned long mem_size)
119{
120 /*
121 * Check if the configuration specifies the type explicitly.
122 * type = 0 && paddr = 0, a default don't care case maps to
123 * the SDRAM type.
124 */
125 if (rg->type || (!rg->type && !rg->paddr))
126 return 0;
127 if (ranges_overlap(rg->paddr, rg->size, mem_start, mem_size)) {
128 rg->type = mem_type;
129 return 0;
130 }
131 /* Can't determine it. */
132 return -1;
133}
134
135static int check_fbmem_region(int region_idx, struct omapfb_mem_region *rg,
136 unsigned long start_avail, unsigned size_avail)
137{
138 unsigned long paddr = rg->paddr;
139 size_t size = rg->size;
140
141 if (rg->type > OMAPFB_MEMTYPE_MAX) {
142 printk(KERN_ERR
143 "Invalid start address for FB region %d\n", region_idx);
144 return -EINVAL;
145 }
146
147 if (!rg->size) {
148 printk(KERN_ERR "Zero size for FB region %d\n", region_idx);
149 return -EINVAL;
150 }
151
152 if (!paddr)
153 /* Allocate this dynamically, leave paddr 0 for now. */
154 return 0;
155
156 /*
157 * Fixed region for the given RAM range. Check if it's already
158 * reserved by the FB code or someone else.
159 */
160 if (fbmem_region_reserved(paddr, size) ||
161 !range_included(paddr, size, start_avail, size_avail)) {
162 printk(KERN_ERR "Trying to use reserved memory "
163 "for FB region %d\n", region_idx);
164 return -EINVAL;
165 }
166
167 return 0;
168}
169
170/*
171 * Called from map_io. We need to call to this early enough so that we
172 * can reserve the fixed SDRAM regions before VM could get hold of them.
173 */
174void omapfb_reserve_sdram(void)
175{
176 struct bootmem_data *bdata;
177 unsigned long sdram_start, sdram_size;
178 unsigned long reserved;
179 int i;
180
181 if (config_invalid)
182 return;
183
184 bdata = NODE_DATA(0)->bdata;
185 sdram_start = bdata->node_boot_start;
186 sdram_size = (bdata->node_low_pfn << PAGE_SHIFT) - sdram_start;
187 reserved = 0;
188 for (i = 0; ; i++) {
189 struct omapfb_mem_region rg;
190
191 if (get_fbmem_region(i, &rg) < 0)
192 break;
193 if (i == OMAPFB_PLANE_NUM) {
194 printk(KERN_ERR
195 "Extraneous FB mem configuration entries\n");
196 config_invalid = 1;
197 return;
54 } 198 }
199 /* Check if it's our memory type. */
200 if (set_fbmem_region_type(&rg, OMAPFB_MEMTYPE_SDRAM,
201 sdram_start, sdram_size) < 0 ||
202 (rg.type != OMAPFB_MEMTYPE_SDRAM))
203 continue;
204 BUG_ON(omapfb_config.mem_desc.region[i].size);
205 if (check_fbmem_region(i, &rg, sdram_start, sdram_size) < 0) {
206 config_invalid = 1;
207 return;
208 }
209 if (rg.paddr)
210 reserve_bootmem(rg.paddr, rg.size);
211 reserved += rg.size;
212 omapfb_config.mem_desc.region[i] = rg;
213 configured_regions++;
55 } 214 }
215 omapfb_config.mem_desc.region_cnt = i;
216 if (reserved)
217 pr_info("Reserving %lu bytes SDRAM for frame buffer\n",
218 reserved);
219}
220
221/*
222 * Called at sram init time, before anything is pushed to the SRAM stack.
223 * Because of the stack scheme, we will allocate everything from the
224 * start of the lowest address region to the end of SRAM. This will also
225 * include padding for page alignment and possible holes between regions.
226 *
227 * As opposed to the SDRAM case, we'll also do any dynamic allocations at
228 * this point, since the driver built as a module would have problem with
229 * freeing / reallocating the regions.
230 */
231unsigned long omapfb_reserve_sram(unsigned long sram_pstart,
232 unsigned long sram_vstart,
233 unsigned long sram_size,
234 unsigned long pstart_avail,
235 unsigned long size_avail)
236{
237 struct omapfb_mem_region rg;
238 unsigned long pend_avail;
239 unsigned long reserved;
240 int i;
241
242 if (config_invalid)
243 return 0;
244
245 reserved = 0;
246 pend_avail = pstart_avail + size_avail;
247 for (i = 0; ; i++) {
248 if (get_fbmem_region(i, &rg) < 0)
249 break;
250 if (i == OMAPFB_PLANE_NUM) {
251 printk(KERN_ERR
252 "Extraneous FB mem configuration entries\n");
253 config_invalid = 1;
254 return 0;
255 }
256
257 /* Check if it's our memory type. */
258 if (set_fbmem_region_type(&rg, OMAPFB_MEMTYPE_SRAM,
259 sram_pstart, sram_size) < 0 ||
260 (rg.type != OMAPFB_MEMTYPE_SRAM))
261 continue;
262 BUG_ON(omapfb_config.mem_desc.region[i].size);
263
264 if (check_fbmem_region(i, &rg, pstart_avail, size_avail) < 0) {
265 config_invalid = 1;
266 return 0;
267 }
268
269 if (!rg.paddr) {
270 /* Dynamic allocation */
271 if ((size_avail & PAGE_MASK) < rg.size) {
272 printk("Not enough SRAM for FB region %d\n",
273 i);
274 config_invalid = 1;
275 return 0;
276 }
277 size_avail = (size_avail - rg.size) & PAGE_MASK;
278 rg.paddr = pstart_avail + size_avail;
279 }
280 /* Reserve everything above the start of the region. */
281 if (pend_avail - rg.paddr > reserved)
282 reserved = pend_avail - rg.paddr;
283 size_avail = pend_avail - reserved - pstart_avail;
284
285 /*
286 * We have a kernel mapping for this already, so the
287 * driver won't have to make one.
288 */
289 rg.vaddr = (void *)(sram_vstart + rg.paddr - sram_pstart);
290 omapfb_config.mem_desc.region[i] = rg;
291 configured_regions++;
292 }
293 omapfb_config.mem_desc.region_cnt = i;
294 if (reserved)
295 pr_info("Reserving %lu bytes SRAM for frame buffer\n",
296 reserved);
297 return reserved;
298}
299
300void omapfb_set_ctrl_platform_data(void *data)
301{
302 omapfb_config.ctrl_platform_data = data;
56} 303}
57 304
58static inline int omap_init_fb(void) 305static inline int omap_init_fb(void)
59{ 306{
60 const struct omap_lcd_config *conf; 307 const struct omap_lcd_config *conf;
61 308
309 if (config_invalid)
310 return 0;
311 if (configured_regions != omapfb_config.mem_desc.region_cnt) {
312 printk(KERN_ERR "Invalid FB mem configuration entries\n");
313 return 0;
314 }
62 conf = omap_get_config(OMAP_TAG_LCD, struct omap_lcd_config); 315 conf = omap_get_config(OMAP_TAG_LCD, struct omap_lcd_config);
63 if (conf == NULL) 316 if (conf == NULL) {
317 if (configured_regions)
318 /* FB mem config, but no LCD config? */
319 printk(KERN_ERR "Missing LCD configuration\n");
64 return 0; 320 return 0;
65 321 }
66 omapfb_config.lcd = *conf; 322 omapfb_config.lcd = *conf;
67 323
68 return platform_device_register(&omap_fb_device); 324 return platform_device_register(&omap_fb_device);
@@ -72,7 +328,16 @@ arch_initcall(omap_init_fb);
72 328
73#else 329#else
74 330
75void omapfb_reserve_mem(void) {} 331void omapfb_reserve_sdram(void) {}
332unsigned long omapfb_reserve_sram(unsigned long sram_pstart,
333 unsigned long sram_vstart,
334 unsigned long sram_size,
335 unsigned long start_avail,
336 unsigned long size_avail)
337{
338 return 0;
339}
340
76 341
77#endif 342#endif
78 343
diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c
index 9dc6d3617bdb..337455dfe64d 100644
--- a/arch/arm/plat-omap/gpio.c
+++ b/arch/arm/plat-omap/gpio.c
@@ -13,7 +13,6 @@
13 13
14#include <linux/init.h> 14#include <linux/init.h>
15#include <linux/module.h> 15#include <linux/module.h>
16#include <linux/sched.h>
17#include <linux/interrupt.h> 16#include <linux/interrupt.h>
18#include <linux/sysdev.h> 17#include <linux/sysdev.h>
19#include <linux/err.h> 18#include <linux/err.h>
@@ -1545,7 +1544,7 @@ void omap2_gpio_resume_after_retention(void)
1545 * This may get called early from board specific init 1544 * This may get called early from board specific init
1546 * for boards that have interrupts routed via FPGA. 1545 * for boards that have interrupts routed via FPGA.
1547 */ 1546 */
1548int omap_gpio_init(void) 1547int __init omap_gpio_init(void)
1549{ 1548{
1550 if (!initialized) 1549 if (!initialized)
1551 return _omap_gpio_init(); 1550 return _omap_gpio_init();
diff --git a/arch/arm/plat-omap/mailbox.c b/arch/arm/plat-omap/mailbox.c
new file mode 100644
index 000000000000..de7e6ef48bd0
--- /dev/null
+++ b/arch/arm/plat-omap/mailbox.c
@@ -0,0 +1,509 @@
1/*
2 * OMAP mailbox driver
3 *
4 * Copyright (C) 2006 Nokia Corporation. All rights reserved.
5 *
6 * Contact: Toshihiro Kobayashi <toshihiro.kobayashi@nokia.com>
7 * Restructured by Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * version 2 as published by the Free Software Foundation.
12 *
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
21 * 02110-1301 USA
22 *
23 */
24
25#include <linux/init.h>
26#include <linux/module.h>
27#include <linux/sched.h>
28#include <linux/interrupt.h>
29#include <linux/device.h>
30#include <linux/blkdev.h>
31#include <linux/err.h>
32#include <linux/delay.h>
33#include <asm/io.h>
34#include <asm/arch/mailbox.h>
35#include "mailbox.h"
36
37static struct omap_mbox *mboxes;
38static DEFINE_RWLOCK(mboxes_lock);
39
40/* Mailbox Sequence Bit function */
41void omap_mbox_init_seq(struct omap_mbox *mbox)
42{
43 mbox_seq_init(mbox);
44}
45EXPORT_SYMBOL(omap_mbox_init_seq);
46
47/*
48 * message sender
49 */
50static int __mbox_msg_send(struct omap_mbox *mbox, mbox_msg_t msg, void *arg)
51{
52 int ret = 0, i = 1000;
53
54 while (mbox_fifo_full(mbox)) {
55 if (mbox->ops->type == OMAP_MBOX_TYPE2)
56 return -1;
57 if (--i == 0)
58 return -1;
59 udelay(1);
60 }
61
62 if (arg && mbox->txq->callback) {
63 ret = mbox->txq->callback(arg);
64 if (ret)
65 goto out;
66 }
67
68 mbox_seq_toggle(mbox, &msg);
69 mbox_fifo_write(mbox, msg);
70 out:
71 return ret;
72}
73
74int omap_mbox_msg_send(struct omap_mbox *mbox, mbox_msg_t msg, void* arg)
75{
76 struct request *rq;
77 struct request_queue *q = mbox->txq->queue;
78 int ret = 0;
79
80 rq = blk_get_request(q, WRITE, GFP_ATOMIC);
81 if (unlikely(!rq)) {
82 ret = -ENOMEM;
83 goto fail;
84 }
85
86 rq->data = (void *)msg;
87 blk_insert_request(q, rq, 0, arg);
88
89 schedule_work(&mbox->txq->work);
90 fail:
91 return ret;
92}
93EXPORT_SYMBOL(omap_mbox_msg_send);
94
95static void mbox_tx_work(struct work_struct *work)
96{
97 int ret;
98 struct request *rq;
99 struct omap_mbox_queue *mq = container_of(work,
100 struct omap_mbox_queue, work);
101 struct omap_mbox *mbox = mq->queue->queuedata;
102 struct request_queue *q = mbox->txq->queue;
103
104 while (1) {
105 spin_lock(q->queue_lock);
106 rq = elv_next_request(q);
107 spin_unlock(q->queue_lock);
108
109 if (!rq)
110 break;
111
112 ret = __mbox_msg_send(mbox, (mbox_msg_t) rq->data, rq->special);
113 if (ret) {
114 enable_mbox_irq(mbox, IRQ_TX);
115 return;
116 }
117
118 spin_lock(q->queue_lock);
119 blkdev_dequeue_request(rq);
120 end_that_request_last(rq, 0);
121 spin_unlock(q->queue_lock);
122 }
123}
124
125/*
126 * Message receiver(workqueue)
127 */
128static void mbox_rx_work(struct work_struct *work)
129{
130 struct omap_mbox_queue *mq =
131 container_of(work, struct omap_mbox_queue, work);
132 struct omap_mbox *mbox = mq->queue->queuedata;
133 struct request_queue *q = mbox->rxq->queue;
134 struct request *rq;
135 mbox_msg_t msg;
136 unsigned long flags;
137
138 if (mbox->rxq->callback == NULL) {
139 sysfs_notify(&mbox->dev.kobj, NULL, "mbox");
140 return;
141 }
142
143 while (1) {
144 spin_lock_irqsave(q->queue_lock, flags);
145 rq = elv_next_request(q);
146 spin_unlock_irqrestore(q->queue_lock, flags);
147 if (!rq)
148 break;
149
150 msg = (mbox_msg_t) rq->data;
151
152 spin_lock_irqsave(q->queue_lock, flags);
153 blkdev_dequeue_request(rq);
154 end_that_request_last(rq, 0);
155 spin_unlock_irqrestore(q->queue_lock, flags);
156
157 mbox->rxq->callback((void *)msg);
158 }
159}
160
161/*
162 * Mailbox interrupt handler
163 */
164static void mbox_txq_fn(request_queue_t * q)
165{
166}
167
168static void mbox_rxq_fn(request_queue_t * q)
169{
170}
171
172static void __mbox_tx_interrupt(struct omap_mbox *mbox)
173{
174 disable_mbox_irq(mbox, IRQ_TX);
175 ack_mbox_irq(mbox, IRQ_TX);
176 schedule_work(&mbox->txq->work);
177}
178
179static void __mbox_rx_interrupt(struct omap_mbox *mbox)
180{
181 struct request *rq;
182 mbox_msg_t msg;
183 request_queue_t *q = mbox->rxq->queue;
184
185 disable_mbox_irq(mbox, IRQ_RX);
186
187 while (!mbox_fifo_empty(mbox)) {
188 rq = blk_get_request(q, WRITE, GFP_ATOMIC);
189 if (unlikely(!rq))
190 goto nomem;
191
192 msg = mbox_fifo_read(mbox);
193 rq->data = (void *)msg;
194
195 if (unlikely(mbox_seq_test(mbox, msg))) {
196 pr_info("mbox: Illegal seq bit!(%08x)\n", msg);
197 if (mbox->err_notify)
198 mbox->err_notify();
199 }
200
201 blk_insert_request(q, rq, 0, NULL);
202 if (mbox->ops->type == OMAP_MBOX_TYPE1)
203 break;
204 }
205
206 /* no more messages in the fifo. clear IRQ source. */
207 ack_mbox_irq(mbox, IRQ_RX);
208 enable_mbox_irq(mbox, IRQ_RX);
209 nomem:
210 schedule_work(&mbox->rxq->work);
211}
212
213static irqreturn_t mbox_interrupt(int irq, void *p)
214{
215 struct omap_mbox *mbox = (struct omap_mbox *)p;
216
217 if (is_mbox_irq(mbox, IRQ_TX))
218 __mbox_tx_interrupt(mbox);
219
220 if (is_mbox_irq(mbox, IRQ_RX))
221 __mbox_rx_interrupt(mbox);
222
223 return IRQ_HANDLED;
224}
225
226/*
227 * sysfs files
228 */
229static ssize_t
230omap_mbox_write(struct device *dev, struct device_attribute *attr,
231 const char * buf, size_t count)
232{
233 int ret;
234 mbox_msg_t *p = (mbox_msg_t *)buf;
235 struct omap_mbox *mbox = dev_get_drvdata(dev);
236
237 for (; count >= sizeof(mbox_msg_t); count -= sizeof(mbox_msg_t)) {
238 ret = omap_mbox_msg_send(mbox, be32_to_cpu(*p), NULL);
239 if (ret)
240 return -EAGAIN;
241 p++;
242 }
243
244 return (size_t)((char *)p - buf);
245}
246
247static ssize_t
248omap_mbox_read(struct device *dev, struct device_attribute *attr, char *buf)
249{
250 unsigned long flags;
251 struct request *rq;
252 mbox_msg_t *p = (mbox_msg_t *) buf;
253 struct omap_mbox *mbox = dev_get_drvdata(dev);
254 struct request_queue *q = mbox->rxq->queue;
255
256 while (1) {
257 spin_lock_irqsave(q->queue_lock, flags);
258 rq = elv_next_request(q);
259 spin_unlock_irqrestore(q->queue_lock, flags);
260
261 if (!rq)
262 break;
263
264 *p = (mbox_msg_t) rq->data;
265
266 spin_lock_irqsave(q->queue_lock, flags);
267 blkdev_dequeue_request(rq);
268 end_that_request_last(rq, 0);
269 spin_unlock_irqrestore(q->queue_lock, flags);
270
271 if (unlikely(mbox_seq_test(mbox, *p))) {
272 pr_info("mbox: Illegal seq bit!(%08x) ignored\n", *p);
273 continue;
274 }
275 p++;
276 }
277
278 pr_debug("%02x %02x %02x %02x\n", buf[0], buf[1], buf[2], buf[3]);
279
280 return (size_t) ((char *)p - buf);
281}
282
283static DEVICE_ATTR(mbox, S_IRUGO | S_IWUSR, omap_mbox_read, omap_mbox_write);
284
285static ssize_t mbox_show(struct class *class, char *buf)
286{
287 return sprintf(buf, "mbox");
288}
289
290static CLASS_ATTR(mbox, S_IRUGO, mbox_show, NULL);
291
292static struct class omap_mbox_class = {
293 .name = "omap_mbox",
294};
295
296static struct omap_mbox_queue *mbox_queue_alloc(struct omap_mbox *mbox,
297 request_fn_proc * proc,
298 void (*work) (struct work_struct *))
299{
300 request_queue_t *q;
301 struct omap_mbox_queue *mq;
302
303 mq = kzalloc(sizeof(struct omap_mbox_queue), GFP_KERNEL);
304 if (!mq)
305 return NULL;
306
307 spin_lock_init(&mq->lock);
308
309 q = blk_init_queue(proc, &mq->lock);
310 if (!q)
311 goto error;
312 q->queuedata = mbox;
313 mq->queue = q;
314
315 INIT_WORK(&mq->work, work);
316
317 return mq;
318error:
319 kfree(mq);
320 return NULL;
321}
322
323static void mbox_queue_free(struct omap_mbox_queue *q)
324{
325 blk_cleanup_queue(q->queue);
326 kfree(q);
327}
328
329static int omap_mbox_init(struct omap_mbox *mbox)
330{
331 int ret;
332 struct omap_mbox_queue *mq;
333
334 if (likely(mbox->ops->startup)) {
335 ret = mbox->ops->startup(mbox);
336 if (unlikely(ret))
337 return ret;
338 }
339
340 mbox->dev.class = &omap_mbox_class;
341 strlcpy(mbox->dev.bus_id, mbox->name, KOBJ_NAME_LEN);
342 dev_set_drvdata(&mbox->dev, mbox);
343
344 ret = device_register(&mbox->dev);
345 if (unlikely(ret))
346 goto fail_device_reg;
347
348 ret = device_create_file(&mbox->dev, &dev_attr_mbox);
349 if (unlikely(ret)) {
350 printk(KERN_ERR
351 "device_create_file failed: %d\n", ret);
352 goto fail_create_mbox;
353 }
354
355 ret = request_irq(mbox->irq, mbox_interrupt, IRQF_DISABLED,
356 mbox->name, mbox);
357 if (unlikely(ret)) {
358 printk(KERN_ERR
359 "failed to register mailbox interrupt:%d\n", ret);
360 goto fail_request_irq;
361 }
362 enable_mbox_irq(mbox, IRQ_RX);
363
364 mq = mbox_queue_alloc(mbox, mbox_txq_fn, mbox_tx_work);
365 if (!mq) {
366 ret = -ENOMEM;
367 goto fail_alloc_txq;
368 }
369 mbox->txq = mq;
370
371 mq = mbox_queue_alloc(mbox, mbox_rxq_fn, mbox_rx_work);
372 if (!mq) {
373 ret = -ENOMEM;
374 goto fail_alloc_rxq;
375 }
376 mbox->rxq = mq;
377
378 return 0;
379
380 fail_alloc_rxq:
381 mbox_queue_free(mbox->txq);
382 fail_alloc_txq:
383 free_irq(mbox->irq, mbox);
384 fail_request_irq:
385 device_remove_file(&mbox->dev, &dev_attr_mbox);
386 fail_create_mbox:
387 device_unregister(&mbox->dev);
388 fail_device_reg:
389 if (unlikely(mbox->ops->shutdown))
390 mbox->ops->shutdown(mbox);
391
392 return ret;
393}
394
395static void omap_mbox_fini(struct omap_mbox *mbox)
396{
397 mbox_queue_free(mbox->txq);
398 mbox_queue_free(mbox->rxq);
399
400 free_irq(mbox->irq, mbox);
401 device_remove_file(&mbox->dev, &dev_attr_mbox);
402 class_unregister(&omap_mbox_class);
403
404 if (unlikely(mbox->ops->shutdown))
405 mbox->ops->shutdown(mbox);
406}
407
408static struct omap_mbox **find_mboxes(const char *name)
409{
410 struct omap_mbox **p;
411
412 for (p = &mboxes; *p; p = &(*p)->next) {
413 if (strcmp((*p)->name, name) == 0)
414 break;
415 }
416
417 return p;
418}
419
420struct omap_mbox *omap_mbox_get(const char *name)
421{
422 struct omap_mbox *mbox;
423 int ret;
424
425 read_lock(&mboxes_lock);
426 mbox = *(find_mboxes(name));
427 if (mbox == NULL) {
428 read_unlock(&mboxes_lock);
429 return ERR_PTR(-ENOENT);
430 }
431
432 read_unlock(&mboxes_lock);
433
434 ret = omap_mbox_init(mbox);
435 if (ret)
436 return ERR_PTR(-ENODEV);
437
438 return mbox;
439}
440EXPORT_SYMBOL(omap_mbox_get);
441
442void omap_mbox_put(struct omap_mbox *mbox)
443{
444 omap_mbox_fini(mbox);
445}
446EXPORT_SYMBOL(omap_mbox_put);
447
448int omap_mbox_register(struct omap_mbox *mbox)
449{
450 int ret = 0;
451 struct omap_mbox **tmp;
452
453 if (!mbox)
454 return -EINVAL;
455 if (mbox->next)
456 return -EBUSY;
457
458 write_lock(&mboxes_lock);
459 tmp = find_mboxes(mbox->name);
460 if (*tmp)
461 ret = -EBUSY;
462 else
463 *tmp = mbox;
464 write_unlock(&mboxes_lock);
465
466 return ret;
467}
468EXPORT_SYMBOL(omap_mbox_register);
469
470int omap_mbox_unregister(struct omap_mbox *mbox)
471{
472 struct omap_mbox **tmp;
473
474 write_lock(&mboxes_lock);
475 tmp = &mboxes;
476 while (*tmp) {
477 if (mbox == *tmp) {
478 *tmp = mbox->next;
479 mbox->next = NULL;
480 write_unlock(&mboxes_lock);
481 return 0;
482 }
483 tmp = &(*tmp)->next;
484 }
485 write_unlock(&mboxes_lock);
486
487 return -EINVAL;
488}
489EXPORT_SYMBOL(omap_mbox_unregister);
490
491static int __init omap_mbox_class_init(void)
492{
493 int ret = class_register(&omap_mbox_class);
494 if (!ret)
495 ret = class_create_file(&omap_mbox_class, &class_attr_mbox);
496
497 return ret;
498}
499
500static void __exit omap_mbox_class_exit(void)
501{
502 class_remove_file(&omap_mbox_class, &class_attr_mbox);
503 class_unregister(&omap_mbox_class);
504}
505
506subsys_initcall(omap_mbox_class_init);
507module_exit(omap_mbox_class_exit);
508
509MODULE_LICENSE("GPL");
diff --git a/arch/arm/plat-omap/mailbox.h b/arch/arm/plat-omap/mailbox.h
new file mode 100644
index 000000000000..67c6740b8ad5
--- /dev/null
+++ b/arch/arm/plat-omap/mailbox.h
@@ -0,0 +1,100 @@
1/*
2 * Mailbox internal functions
3 *
4 * Copyright (C) 2006 Nokia Corporation
5 * Written by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
6 *
7 * This file is subject to the terms and conditions of the GNU General Public
8 * License. See the file "COPYING" in the main directory of this archive
9 * for more details.
10 */
11
12#ifndef __ARCH_ARM_PLAT_MAILBOX_H
13#define __ARCH_ARM_PLAT_MAILBOX_H
14
15/*
16 * Mailbox sequence bit API
17 */
18#if defined(CONFIG_ARCH_OMAP1)
19# define MBOX_USE_SEQ_BIT
20#elif defined(CONFIG_ARCH_OMAP2)
21# define MBOX_USE_SEQ_BIT
22#endif
23
24#ifdef MBOX_USE_SEQ_BIT
25/* seq_rcv should be initialized with any value other than
26 * 0 and 1 << 31, to allow either value for the first
27 * message. */
28static inline void mbox_seq_init(struct omap_mbox *mbox)
29{
30 /* any value other than 0 and 1 << 31 */
31 mbox->seq_rcv = 0xffffffff;
32}
33
34static inline void mbox_seq_toggle(struct omap_mbox *mbox, mbox_msg_t * msg)
35{
36 /* add seq_snd to msg */
37 *msg = (*msg & 0x7fffffff) | mbox->seq_snd;
38 /* flip seq_snd */
39 mbox->seq_snd ^= 1 << 31;
40}
41
42static inline int mbox_seq_test(struct omap_mbox *mbox, mbox_msg_t msg)
43{
44 mbox_msg_t seq = msg & (1 << 31);
45 if (seq == mbox->seq_rcv)
46 return -1;
47 mbox->seq_rcv = seq;
48 return 0;
49}
50#else
51static inline void mbox_seq_init(struct omap_mbox *mbox)
52{
53}
54static inline void mbox_seq_toggle(struct omap_mbox *mbox, mbox_msg_t * msg)
55{
56}
57static inline int mbox_seq_test(struct omap_mbox *mbox, mbox_msg_t msg)
58{
59 return 0;
60}
61#endif
62
63/* Mailbox FIFO handle functions */
64static inline mbox_msg_t mbox_fifo_read(struct omap_mbox *mbox)
65{
66 return mbox->ops->fifo_read(mbox);
67}
68static inline void mbox_fifo_write(struct omap_mbox *mbox, mbox_msg_t msg)
69{
70 mbox->ops->fifo_write(mbox, msg);
71}
72static inline int mbox_fifo_empty(struct omap_mbox *mbox)
73{
74 return mbox->ops->fifo_empty(mbox);
75}
76static inline int mbox_fifo_full(struct omap_mbox *mbox)
77{
78 return mbox->ops->fifo_full(mbox);
79}
80
81/* Mailbox IRQ handle functions */
82static inline void enable_mbox_irq(struct omap_mbox *mbox, omap_mbox_irq_t irq)
83{
84 mbox->ops->enable_irq(mbox, irq);
85}
86static inline void disable_mbox_irq(struct omap_mbox *mbox, omap_mbox_irq_t irq)
87{
88 mbox->ops->disable_irq(mbox, irq);
89}
90static inline void ack_mbox_irq(struct omap_mbox *mbox, omap_mbox_irq_t irq)
91{
92 if (mbox->ops->ack_irq)
93 mbox->ops->ack_irq(mbox, irq);
94}
95static inline int is_mbox_irq(struct omap_mbox *mbox, omap_mbox_irq_t irq)
96{
97 return mbox->ops->is_irq(mbox, irq);
98}
99
100#endif /* __ARCH_ARM_PLAT_MAILBOX_H */
diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c
index 19014b2ff4c6..bc46f33aede3 100644
--- a/arch/arm/plat-omap/sram.c
+++ b/arch/arm/plat-omap/sram.c
@@ -46,14 +46,19 @@
46 46
47#define ROUND_DOWN(value,boundary) ((value) & (~((boundary)-1))) 47#define ROUND_DOWN(value,boundary) ((value) & (~((boundary)-1)))
48 48
49static unsigned long omap_sram_start;
49static unsigned long omap_sram_base; 50static unsigned long omap_sram_base;
50static unsigned long omap_sram_size; 51static unsigned long omap_sram_size;
51static unsigned long omap_sram_ceil; 52static unsigned long omap_sram_ceil;
52 53
53unsigned long omap_fb_sram_start; 54extern unsigned long omapfb_reserve_sram(unsigned long sram_pstart,
54unsigned long omap_fb_sram_size; 55 unsigned long sram_vstart,
56 unsigned long sram_size,
57 unsigned long pstart_avail,
58 unsigned long size_avail);
55 59
56/* Depending on the target RAMFS firewall setup, the public usable amount of 60/*
61 * Depending on the target RAMFS firewall setup, the public usable amount of
57 * SRAM varies. The default accessable size for all device types is 2k. A GP 62 * SRAM varies. The default accessable size for all device types is 2k. A GP
58 * device allows ARM11 but not other initators for full size. This 63 * device allows ARM11 but not other initators for full size. This
59 * functionality seems ok until some nice security API happens. 64 * functionality seems ok until some nice security API happens.
@@ -77,32 +82,6 @@ static int is_sram_locked(void)
77 return 1; /* assume locked with no PPA or security driver */ 82 return 1; /* assume locked with no PPA or security driver */
78} 83}
79 84
80void get_fb_sram_conf(unsigned long start_avail, unsigned size_avail,
81 unsigned long *start, unsigned long *size)
82{
83 const struct omap_fbmem_config *fbmem_conf;
84
85 fbmem_conf = omap_get_config(OMAP_TAG_FBMEM, struct omap_fbmem_config);
86 if (fbmem_conf != NULL) {
87 *start = fbmem_conf->fb_sram_start;
88 *size = fbmem_conf->fb_sram_size;
89 } else {
90 *size = 0;
91 *start = 0;
92 }
93
94 if (*size && (
95 *start < start_avail ||
96 *start + *size > start_avail + size_avail)) {
97 printk(KERN_ERR "invalid FB SRAM configuration\n");
98 *start = start_avail;
99 *size = size_avail;
100 }
101
102 if (*size)
103 pr_info("Reserving %lu bytes SRAM for frame buffer\n", *size);
104}
105
106/* 85/*
107 * The amount of SRAM depends on the core type. 86 * The amount of SRAM depends on the core type.
108 * Note that we cannot try to test for SRAM here because writes 87 * Note that we cannot try to test for SRAM here because writes
@@ -111,16 +90,16 @@ void get_fb_sram_conf(unsigned long start_avail, unsigned size_avail,
111 */ 90 */
112void __init omap_detect_sram(void) 91void __init omap_detect_sram(void)
113{ 92{
114 unsigned long sram_start; 93 unsigned long reserved;
115 94
116 if (cpu_is_omap24xx()) { 95 if (cpu_is_omap24xx()) {
117 if (is_sram_locked()) { 96 if (is_sram_locked()) {
118 omap_sram_base = OMAP2_SRAM_PUB_VA; 97 omap_sram_base = OMAP2_SRAM_PUB_VA;
119 sram_start = OMAP2_SRAM_PUB_PA; 98 omap_sram_start = OMAP2_SRAM_PUB_PA;
120 omap_sram_size = 0x800; /* 2K */ 99 omap_sram_size = 0x800; /* 2K */
121 } else { 100 } else {
122 omap_sram_base = OMAP2_SRAM_VA; 101 omap_sram_base = OMAP2_SRAM_VA;
123 sram_start = OMAP2_SRAM_PA; 102 omap_sram_start = OMAP2_SRAM_PA;
124 if (cpu_is_omap242x()) 103 if (cpu_is_omap242x())
125 omap_sram_size = 0xa0000; /* 640K */ 104 omap_sram_size = 0xa0000; /* 640K */
126 else if (cpu_is_omap243x()) 105 else if (cpu_is_omap243x())
@@ -128,7 +107,7 @@ void __init omap_detect_sram(void)
128 } 107 }
129 } else { 108 } else {
130 omap_sram_base = OMAP1_SRAM_VA; 109 omap_sram_base = OMAP1_SRAM_VA;
131 sram_start = OMAP1_SRAM_PA; 110 omap_sram_start = OMAP1_SRAM_PA;
132 111
133 if (cpu_is_omap730()) 112 if (cpu_is_omap730())
134 omap_sram_size = 0x32000; /* 200K */ 113 omap_sram_size = 0x32000; /* 200K */
@@ -144,12 +123,11 @@ void __init omap_detect_sram(void)
144 omap_sram_size = 0x4000; 123 omap_sram_size = 0x4000;
145 } 124 }
146 } 125 }
147 get_fb_sram_conf(sram_start + SRAM_BOOTLOADER_SZ, 126 reserved = omapfb_reserve_sram(omap_sram_start, omap_sram_base,
148 omap_sram_size - SRAM_BOOTLOADER_SZ, 127 omap_sram_size,
149 &omap_fb_sram_start, &omap_fb_sram_size); 128 omap_sram_start + SRAM_BOOTLOADER_SZ,
150 if (omap_fb_sram_size) 129 omap_sram_size - SRAM_BOOTLOADER_SZ);
151 omap_sram_size -= sram_start + omap_sram_size - 130 omap_sram_size -= reserved;
152 omap_fb_sram_start;
153 omap_sram_ceil = omap_sram_base + omap_sram_size; 131 omap_sram_ceil = omap_sram_base + omap_sram_size;
154} 132}
155 133
diff --git a/arch/arm/plat-omap/usb.c b/arch/arm/plat-omap/usb.c
index 7e8096809be2..25489aafb113 100644
--- a/arch/arm/plat-omap/usb.c
+++ b/arch/arm/plat-omap/usb.c
@@ -37,9 +37,27 @@
37#include <asm/arch/usb.h> 37#include <asm/arch/usb.h>
38#include <asm/arch/board.h> 38#include <asm/arch/board.h>
39 39
40#ifdef CONFIG_ARCH_OMAP1
41
42#define INT_USB_IRQ_GEN IH2_BASE + 20
43#define INT_USB_IRQ_NISO IH2_BASE + 30
44#define INT_USB_IRQ_ISO IH2_BASE + 29
45#define INT_USB_IRQ_HGEN INT_USB_HHC_1
46#define INT_USB_IRQ_OTG IH2_BASE + 8
47
48#else
49
50#define INT_USB_IRQ_GEN INT_24XX_USB_IRQ_GEN
51#define INT_USB_IRQ_NISO INT_24XX_USB_IRQ_NISO
52#define INT_USB_IRQ_ISO INT_24XX_USB_IRQ_ISO
53#define INT_USB_IRQ_HGEN INT_24XX_USB_IRQ_HGEN
54#define INT_USB_IRQ_OTG INT_24XX_USB_IRQ_OTG
55
56#endif
57
58
40/* These routines should handle the standard chip-specific modes 59/* These routines should handle the standard chip-specific modes
41 * for usb0/1/2 ports, covering basic mux and transceiver setup. 60 * for usb0/1/2 ports, covering basic mux and transceiver setup.
42 * Call omap_usb_init() once, from INIT_MACHINE().
43 * 61 *
44 * Some board-*.c files will need to set up additional mux options, 62 * Some board-*.c files will need to set up additional mux options,
45 * like for suspend handling, vbus sensing, GPIOs, and the D+ pullup. 63 * like for suspend handling, vbus sensing, GPIOs, and the D+ pullup.
@@ -96,19 +114,26 @@ static u32 __init omap_usb0_init(unsigned nwires, unsigned is_device)
96{ 114{
97 u32 syscon1 = 0; 115 u32 syscon1 = 0;
98 116
117 if (cpu_is_omap24xx())
118 CONTROL_DEVCONF_REG &= ~USBT0WRMODEI(USB_BIDIR_TLL);
119
99 if (nwires == 0) { 120 if (nwires == 0) {
100 if (!cpu_is_omap15xx()) { 121 if (cpu_class_is_omap1() && !cpu_is_omap15xx()) {
101 /* pulldown D+/D- */ 122 /* pulldown D+/D- */
102 USB_TRANSCEIVER_CTRL_REG &= ~(3 << 1); 123 USB_TRANSCEIVER_CTRL_REG &= ~(3 << 1);
103 } 124 }
104 return 0; 125 return 0;
105 } 126 }
106 127
107 if (is_device) 128 if (is_device) {
108 omap_cfg_reg(W4_USB_PUEN); 129 if (cpu_is_omap24xx())
130 omap_cfg_reg(J20_24XX_USB0_PUEN);
131 else
132 omap_cfg_reg(W4_USB_PUEN);
133 }
109 134
110 /* internal transceiver */ 135 /* internal transceiver (unavailable on 17xx, 24xx) */
111 if (nwires == 2) { 136 if (!cpu_class_is_omap2() && nwires == 2) {
112 // omap_cfg_reg(P9_USB_DP); 137 // omap_cfg_reg(P9_USB_DP);
113 // omap_cfg_reg(R8_USB_DM); 138 // omap_cfg_reg(R8_USB_DM);
114 139
@@ -136,29 +161,50 @@ static u32 __init omap_usb0_init(unsigned nwires, unsigned is_device)
136 return 0; 161 return 0;
137 } 162 }
138 163
139 omap_cfg_reg(V6_USB0_TXD); 164 if (cpu_is_omap24xx()) {
140 omap_cfg_reg(W9_USB0_TXEN); 165 omap_cfg_reg(K18_24XX_USB0_DAT);
141 omap_cfg_reg(W5_USB0_SE0); 166 omap_cfg_reg(K19_24XX_USB0_TXEN);
167 omap_cfg_reg(J14_24XX_USB0_SE0);
168 if (nwires != 3)
169 omap_cfg_reg(J18_24XX_USB0_RCV);
170 } else {
171 omap_cfg_reg(V6_USB0_TXD);
172 omap_cfg_reg(W9_USB0_TXEN);
173 omap_cfg_reg(W5_USB0_SE0);
174 if (nwires != 3)
175 omap_cfg_reg(Y5_USB0_RCV);
176 }
142 177
143 /* NOTE: SPEED and SUSP aren't configured here */ 178 /* NOTE: SPEED and SUSP aren't configured here. OTG hosts
179 * may be able to use I2C requests to set those bits along
180 * with VBUS switching and overcurrent detction.
181 */
144 182
145 if (nwires != 3) 183 if (cpu_class_is_omap1() && nwires != 6)
146 omap_cfg_reg(Y5_USB0_RCV);
147 if (nwires != 6)
148 USB_TRANSCEIVER_CTRL_REG &= ~CONF_USB2_UNI_R; 184 USB_TRANSCEIVER_CTRL_REG &= ~CONF_USB2_UNI_R;
149 185
150 switch (nwires) { 186 switch (nwires) {
151 case 3: 187 case 3:
152 syscon1 = 2; 188 syscon1 = 2;
189 if (cpu_is_omap24xx())
190 CONTROL_DEVCONF_REG |= USBT0WRMODEI(USB_BIDIR);
153 break; 191 break;
154 case 4: 192 case 4:
155 syscon1 = 1; 193 syscon1 = 1;
194 if (cpu_is_omap24xx())
195 CONTROL_DEVCONF_REG |= USBT0WRMODEI(USB_BIDIR);
156 break; 196 break;
157 case 6: 197 case 6:
158 syscon1 = 3; 198 syscon1 = 3;
159 omap_cfg_reg(AA9_USB0_VP); 199 if (cpu_is_omap24xx()) {
160 omap_cfg_reg(R9_USB0_VM); 200 omap_cfg_reg(J19_24XX_USB0_VP);
161 USB_TRANSCEIVER_CTRL_REG |= CONF_USB2_UNI_R; 201 omap_cfg_reg(K20_24XX_USB0_VM);
202 CONTROL_DEVCONF_REG |= USBT0WRMODEI(USB_UNIDIR);
203 } else {
204 omap_cfg_reg(AA9_USB0_VP);
205 omap_cfg_reg(R9_USB0_VM);
206 USB_TRANSCEIVER_CTRL_REG |= CONF_USB2_UNI_R;
207 }
162 break; 208 break;
163 default: 209 default:
164 printk(KERN_ERR "illegal usb%d %d-wire transceiver\n", 210 printk(KERN_ERR "illegal usb%d %d-wire transceiver\n",
@@ -171,14 +217,22 @@ static u32 __init omap_usb1_init(unsigned nwires)
171{ 217{
172 u32 syscon1 = 0; 218 u32 syscon1 = 0;
173 219
174 if (nwires != 6 && !cpu_is_omap15xx()) 220 if (cpu_class_is_omap1() && !cpu_is_omap15xx() && nwires != 6)
175 USB_TRANSCEIVER_CTRL_REG &= ~CONF_USB1_UNI_R; 221 USB_TRANSCEIVER_CTRL_REG &= ~CONF_USB1_UNI_R;
222 if (cpu_is_omap24xx())
223 CONTROL_DEVCONF_REG &= ~USBT1WRMODEI(USB_BIDIR_TLL);
224
176 if (nwires == 0) 225 if (nwires == 0)
177 return 0; 226 return 0;
178 227
179 /* external transceiver */ 228 /* external transceiver */
180 omap_cfg_reg(USB1_TXD); 229 if (cpu_class_is_omap1()) {
181 omap_cfg_reg(USB1_TXEN); 230 omap_cfg_reg(USB1_TXD);
231 omap_cfg_reg(USB1_TXEN);
232 if (nwires != 3)
233 omap_cfg_reg(USB1_RCV);
234 }
235
182 if (cpu_is_omap15xx()) { 236 if (cpu_is_omap15xx()) {
183 omap_cfg_reg(USB1_SEO); 237 omap_cfg_reg(USB1_SEO);
184 omap_cfg_reg(USB1_SPEED); 238 omap_cfg_reg(USB1_SPEED);
@@ -190,20 +244,38 @@ static u32 __init omap_usb1_init(unsigned nwires)
190 } else if (cpu_is_omap1710()) { 244 } else if (cpu_is_omap1710()) {
191 omap_cfg_reg(R13_1710_USB1_SE0); 245 omap_cfg_reg(R13_1710_USB1_SE0);
192 // SUSP 246 // SUSP
247 } else if (cpu_is_omap24xx()) {
248 /* NOTE: board-specific code must set up pin muxing for usb1,
249 * since each signal could come out on either of two balls.
250 */
193 } else { 251 } else {
194 pr_debug("usb unrecognized\n"); 252 pr_debug("usb%d cpu unrecognized\n", 1);
253 return 0;
195 } 254 }
196 if (nwires != 3)
197 omap_cfg_reg(USB1_RCV);
198 255
199 switch (nwires) { 256 switch (nwires) {
257 case 2:
258 if (!cpu_is_omap24xx())
259 goto bad;
260 /* NOTE: board-specific code must override this setting if
261 * this TLL link is not using DP/DM
262 */
263 syscon1 = 1;
264 CONTROL_DEVCONF_REG |= USBT1WRMODEI(USB_BIDIR_TLL);
265 break;
200 case 3: 266 case 3:
201 syscon1 = 2; 267 syscon1 = 2;
268 if (cpu_is_omap24xx())
269 CONTROL_DEVCONF_REG |= USBT1WRMODEI(USB_BIDIR);
202 break; 270 break;
203 case 4: 271 case 4:
204 syscon1 = 1; 272 syscon1 = 1;
273 if (cpu_is_omap24xx())
274 CONTROL_DEVCONF_REG |= USBT1WRMODEI(USB_BIDIR);
205 break; 275 break;
206 case 6: 276 case 6:
277 if (cpu_is_omap24xx())
278 goto bad;
207 syscon1 = 3; 279 syscon1 = 3;
208 omap_cfg_reg(USB1_VP); 280 omap_cfg_reg(USB1_VP);
209 omap_cfg_reg(USB1_VM); 281 omap_cfg_reg(USB1_VM);
@@ -211,6 +283,7 @@ static u32 __init omap_usb1_init(unsigned nwires)
211 USB_TRANSCEIVER_CTRL_REG |= CONF_USB1_UNI_R; 283 USB_TRANSCEIVER_CTRL_REG |= CONF_USB1_UNI_R;
212 break; 284 break;
213 default: 285 default:
286bad:
214 printk(KERN_ERR "illegal usb%d %d-wire transceiver\n", 287 printk(KERN_ERR "illegal usb%d %d-wire transceiver\n",
215 1, nwires); 288 1, nwires);
216 } 289 }
@@ -221,10 +294,17 @@ static u32 __init omap_usb2_init(unsigned nwires, unsigned alt_pingroup)
221{ 294{
222 u32 syscon1 = 0; 295 u32 syscon1 = 0;
223 296
224 /* NOTE erratum: must leave USB2_UNI_R set if usb0 in use */ 297 if (cpu_is_omap24xx()) {
298 CONTROL_DEVCONF_REG &= ~(USBT2WRMODEI(USB_BIDIR_TLL)
299 | USBT2TLL5PI);
300 alt_pingroup = 0;
301 }
302
303 /* NOTE omap1 erratum: must leave USB2_UNI_R set if usb0 in use */
225 if (alt_pingroup || nwires == 0) 304 if (alt_pingroup || nwires == 0)
226 return 0; 305 return 0;
227 if (nwires != 6 && !cpu_is_omap15xx()) 306
307 if (cpu_class_is_omap1() && !cpu_is_omap15xx() && nwires != 6)
228 USB_TRANSCEIVER_CTRL_REG &= ~CONF_USB2_UNI_R; 308 USB_TRANSCEIVER_CTRL_REG &= ~CONF_USB2_UNI_R;
229 309
230 /* external transceiver */ 310 /* external transceiver */
@@ -242,19 +322,54 @@ static u32 __init omap_usb2_init(unsigned nwires, unsigned alt_pingroup)
242 if (nwires != 3) 322 if (nwires != 3)
243 omap_cfg_reg(Y5_USB2_RCV); 323 omap_cfg_reg(Y5_USB2_RCV);
244 // FIXME omap_cfg_reg(USB2_SPEED); 324 // FIXME omap_cfg_reg(USB2_SPEED);
325 } else if (cpu_is_omap24xx()) {
326 omap_cfg_reg(Y11_24XX_USB2_DAT);
327 omap_cfg_reg(AA10_24XX_USB2_SE0);
328 if (nwires > 2)
329 omap_cfg_reg(AA12_24XX_USB2_TXEN);
330 if (nwires > 3)
331 omap_cfg_reg(AA6_24XX_USB2_RCV);
245 } else { 332 } else {
246 pr_debug("usb unrecognized\n"); 333 pr_debug("usb%d cpu unrecognized\n", 1);
334 return 0;
247 } 335 }
248 // omap_cfg_reg(USB2_SUSP); 336 // if (cpu_class_is_omap1()) omap_cfg_reg(USB2_SUSP);
249 337
250 switch (nwires) { 338 switch (nwires) {
339 case 2:
340 if (!cpu_is_omap24xx())
341 goto bad;
342 /* NOTE: board-specific code must override this setting if
343 * this TLL link is not using DP/DM
344 */
345 syscon1 = 1;
346 CONTROL_DEVCONF_REG |= USBT2WRMODEI(USB_BIDIR_TLL);
347 break;
251 case 3: 348 case 3:
252 syscon1 = 2; 349 syscon1 = 2;
350 if (cpu_is_omap24xx())
351 CONTROL_DEVCONF_REG |= USBT2WRMODEI(USB_BIDIR);
253 break; 352 break;
254 case 4: 353 case 4:
255 syscon1 = 1; 354 syscon1 = 1;
355 if (cpu_is_omap24xx())
356 CONTROL_DEVCONF_REG |= USBT2WRMODEI(USB_BIDIR);
357 break;
358 case 5:
359 if (!cpu_is_omap24xx())
360 goto bad;
361 omap_cfg_reg(AA4_24XX_USB2_TLLSE0);
362 /* NOTE: board-specific code must override this setting if
363 * this TLL link is not using DP/DM. Something must also
364 * set up OTG_SYSCON2.HMC_TLL{ATTACH,SPEED}
365 */
366 syscon1 = 3;
367 CONTROL_DEVCONF_REG |= USBT2WRMODEI(USB_UNIDIR_TLL)
368 | USBT2TLL5PI;
256 break; 369 break;
257 case 6: 370 case 6:
371 if (cpu_is_omap24xx())
372 goto bad;
258 syscon1 = 3; 373 syscon1 = 3;
259 if (cpu_is_omap15xx()) { 374 if (cpu_is_omap15xx()) {
260 omap_cfg_reg(USB2_VP); 375 omap_cfg_reg(USB2_VP);
@@ -266,6 +381,7 @@ static u32 __init omap_usb2_init(unsigned nwires, unsigned alt_pingroup)
266 } 381 }
267 break; 382 break;
268 default: 383 default:
384bad:
269 printk(KERN_ERR "illegal usb%d %d-wire transceiver\n", 385 printk(KERN_ERR "illegal usb%d %d-wire transceiver\n",
270 2, nwires); 386 2, nwires);
271 } 387 }
@@ -294,13 +410,13 @@ static struct resource udc_resources[] = {
294 .end = UDC_BASE + 0xff, 410 .end = UDC_BASE + 0xff,
295 .flags = IORESOURCE_MEM, 411 .flags = IORESOURCE_MEM,
296 }, { /* general IRQ */ 412 }, { /* general IRQ */
297 .start = IH2_BASE + 20, 413 .start = INT_USB_IRQ_GEN,
298 .flags = IORESOURCE_IRQ, 414 .flags = IORESOURCE_IRQ,
299 }, { /* PIO IRQ */ 415 }, { /* PIO IRQ */
300 .start = IH2_BASE + 30, 416 .start = INT_USB_IRQ_NISO,
301 .flags = IORESOURCE_IRQ, 417 .flags = IORESOURCE_IRQ,
302 }, { /* SOF IRQ */ 418 }, { /* SOF IRQ */
303 .start = IH2_BASE + 29, 419 .start = INT_USB_IRQ_ISO,
304 .flags = IORESOURCE_IRQ, 420 .flags = IORESOURCE_IRQ,
305 }, 421 },
306}; 422};
@@ -329,11 +445,11 @@ static u64 ohci_dmamask = ~(u32)0;
329static struct resource ohci_resources[] = { 445static struct resource ohci_resources[] = {
330 { 446 {
331 .start = OMAP_OHCI_BASE, 447 .start = OMAP_OHCI_BASE,
332 .end = OMAP_OHCI_BASE + 4096 - 1, 448 .end = OMAP_OHCI_BASE + 0xff,
333 .flags = IORESOURCE_MEM, 449 .flags = IORESOURCE_MEM,
334 }, 450 },
335 { 451 {
336 .start = INT_USB_HHC_1, 452 .start = INT_USB_IRQ_HGEN,
337 .flags = IORESOURCE_IRQ, 453 .flags = IORESOURCE_IRQ,
338 }, 454 },
339}; 455};
@@ -361,7 +477,7 @@ static struct resource otg_resources[] = {
361 .end = OTG_BASE + 0xff, 477 .end = OTG_BASE + 0xff,
362 .flags = IORESOURCE_MEM, 478 .flags = IORESOURCE_MEM,
363 }, { 479 }, {
364 .start = IH2_BASE + 8, 480 .start = INT_USB_IRQ_OTG,
365 .flags = IORESOURCE_IRQ, 481 .flags = IORESOURCE_IRQ,
366 }, 482 },
367}; 483};
@@ -385,7 +501,7 @@ static struct platform_device otg_device = {
385 501
386 502
387// FIXME correct answer depends on hmc_mode, 503// FIXME correct answer depends on hmc_mode,
388// as does any nonzero value for config->otg port number 504// as does (on omap1) any nonzero value for config->otg port number
389#ifdef CONFIG_USB_GADGET_OMAP 505#ifdef CONFIG_USB_GADGET_OMAP
390#define is_usb0_device(config) 1 506#define is_usb0_device(config) 1
391#else 507#else
@@ -426,12 +542,13 @@ omap_otg_init(struct omap_usb_config *config)
426 if (config->otg) 542 if (config->otg)
427 syscon |= OTG_EN; 543 syscon |= OTG_EN;
428#endif 544#endif
429 pr_debug("USB_TRANSCEIVER_CTRL_REG = %03x\n", USB_TRANSCEIVER_CTRL_REG); 545 if (cpu_class_is_omap1())
546 pr_debug("USB_TRANSCEIVER_CTRL_REG = %03x\n", USB_TRANSCEIVER_CTRL_REG);
430 pr_debug("OTG_SYSCON_2_REG = %08x\n", syscon); 547 pr_debug("OTG_SYSCON_2_REG = %08x\n", syscon);
431 OTG_SYSCON_2_REG = syscon; 548 OTG_SYSCON_2_REG = syscon;
432 549
433 printk("USB: hmc %d", config->hmc_mode); 550 printk("USB: hmc %d", config->hmc_mode);
434 if (alt_pingroup) 551 if (!alt_pingroup)
435 printk(", usb2 alt %d wires", config->pins[2]); 552 printk(", usb2 alt %d wires", config->pins[2]);
436 else if (config->pins[0]) 553 else if (config->pins[0])
437 printk(", usb0 %d wires%s", config->pins[0], 554 printk(", usb0 %d wires%s", config->pins[0],
@@ -444,10 +561,12 @@ omap_otg_init(struct omap_usb_config *config)
444 printk(", Mini-AB on usb%d", config->otg - 1); 561 printk(", Mini-AB on usb%d", config->otg - 1);
445 printk("\n"); 562 printk("\n");
446 563
447 /* leave USB clocks/controllers off until needed */ 564 if (cpu_class_is_omap1()) {
448 ULPD_SOFT_REQ_REG &= ~SOFT_USB_CLK_REQ; 565 /* leave USB clocks/controllers off until needed */
449 ULPD_CLOCK_CTRL_REG &= ~USB_MCLK_EN; 566 ULPD_SOFT_REQ_REG &= ~SOFT_USB_CLK_REQ;
450 ULPD_CLOCK_CTRL_REG |= DIS_USB_PVCI_CLK; 567 ULPD_CLOCK_CTRL_REG &= ~USB_MCLK_EN;
568 ULPD_CLOCK_CTRL_REG |= DIS_USB_PVCI_CLK;
569 }
451 syscon = OTG_SYSCON_1_REG; 570 syscon = OTG_SYSCON_1_REG;
452 syscon |= HST_IDLE_EN|DEV_IDLE_EN|OTG_IDLE_EN; 571 syscon |= HST_IDLE_EN|DEV_IDLE_EN|OTG_IDLE_EN;
453 572
@@ -585,7 +704,7 @@ omap_usb_init(void)
585 } 704 }
586 platform_data = *config; 705 platform_data = *config;
587 706
588 if (cpu_is_omap730() || cpu_is_omap16xx()) 707 if (cpu_is_omap730() || cpu_is_omap16xx() || cpu_is_omap24xx())
589 omap_otg_init(&platform_data); 708 omap_otg_init(&platform_data);
590 else if (cpu_is_omap15xx()) 709 else if (cpu_is_omap15xx())
591 omap_1510_usb_init(&platform_data); 710 omap_1510_usb_init(&platform_data);
generated by cgit v1.2.2 (git 2.25.0) at 2024-10-25 08:36:46 -0400