diff options
author | Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-07 18:40:39 -0500 |
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committer | Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-07 18:40:39 -0500 |
commit | ea14fad0d416354a4e9bb1a04f32acba706f9548 (patch) | |
tree | 2c8acc5331f189aef1d40ddce3f40d6be9314e77 /arch/arm/mach-at91rm9200/at91sam9261.c | |
parent | 6ee7e78e7c78d871409ad4df30551c9355be7d0e (diff) | |
parent | 6705cda24fad1cb0ac82ac4f312df8ec735b39b0 (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: (76 commits)
[ARM] 4002/1: S3C24XX: leave parent IRQs unmasked
[ARM] 4001/1: S3C24XX: shorten reboot time
[ARM] 3983/2: remove unused argument to __bug()
[ARM] 4000/1: Osiris: add third serial port in
[ARM] 3999/1: RX3715: suspend to RAM support
[ARM] 3998/1: VR1000: LED platform devices
[ARM] 3995/1: iop13xx: add iop13xx support
[ARM] 3968/1: iop13xx: add iop13xx_defconfig
[ARM] Update mach-types
[ARM] Allow gcc to optimise arm_add_memory a little more
[ARM] 3991/1: i.MX/MX1 high resolution time source
[ARM] 3990/1: i.MX/MX1 more precise PLL decode
[ARM] 3986/1: H1940: suspend to RAM support
[ARM] 3985/1: ixp4xx clocksource cleanup
[ARM] 3984/1: ixp4xx/nslu2: Fix disk LED numbering (take 2)
[ARM] 3994/1: ixp23xx: fix handling of pci master aborts
[ARM] 3981/1: sched_clock for PXA2xx
[ARM] 3980/1: extend the ARM Versatile sched_clock implementation from 32 to 63 bit
[ARM] 3979/1: extend the SA11x0 sched_clock implementation from 32 to 63 bit period
[ARM] 3978/1: macro to provide a 63-bit value from a 32-bit hardware counter
...
Diffstat (limited to 'arch/arm/mach-at91rm9200/at91sam9261.c')
-rw-r--r-- | arch/arm/mach-at91rm9200/at91sam9261.c | 289 |
1 files changed, 289 insertions, 0 deletions
diff --git a/arch/arm/mach-at91rm9200/at91sam9261.c b/arch/arm/mach-at91rm9200/at91sam9261.c new file mode 100644 index 000000000000..5a82f35da2e9 --- /dev/null +++ b/arch/arm/mach-at91rm9200/at91sam9261.c | |||
@@ -0,0 +1,289 @@ | |||
1 | /* | ||
2 | * arch/arm/mach-at91rm9200/at91sam9261.c | ||
3 | * | ||
4 | * Copyright (C) 2005 SAN People | ||
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 | */ | ||
12 | |||
13 | #include <linux/module.h> | ||
14 | |||
15 | #include <asm/mach/arch.h> | ||
16 | #include <asm/mach/map.h> | ||
17 | #include <asm/arch/at91sam9261.h> | ||
18 | #include <asm/arch/at91_pmc.h> | ||
19 | |||
20 | #include "generic.h" | ||
21 | #include "clock.h" | ||
22 | |||
23 | static struct map_desc at91sam9261_io_desc[] __initdata = { | ||
24 | { | ||
25 | .virtual = AT91_VA_BASE_SYS, | ||
26 | .pfn = __phys_to_pfn(AT91_BASE_SYS), | ||
27 | .length = SZ_16K, | ||
28 | .type = MT_DEVICE, | ||
29 | }, { | ||
30 | .virtual = AT91_IO_VIRT_BASE - AT91SAM9261_SRAM_SIZE, | ||
31 | .pfn = __phys_to_pfn(AT91SAM9261_SRAM_BASE), | ||
32 | .length = AT91SAM9261_SRAM_SIZE, | ||
33 | .type = MT_DEVICE, | ||
34 | }, | ||
35 | }; | ||
36 | |||
37 | /* -------------------------------------------------------------------- | ||
38 | * Clocks | ||
39 | * -------------------------------------------------------------------- */ | ||
40 | |||
41 | /* | ||
42 | * The peripheral clocks. | ||
43 | */ | ||
44 | static struct clk pioA_clk = { | ||
45 | .name = "pioA_clk", | ||
46 | .pmc_mask = 1 << AT91SAM9261_ID_PIOA, | ||
47 | .type = CLK_TYPE_PERIPHERAL, | ||
48 | }; | ||
49 | static struct clk pioB_clk = { | ||
50 | .name = "pioB_clk", | ||
51 | .pmc_mask = 1 << AT91SAM9261_ID_PIOB, | ||
52 | .type = CLK_TYPE_PERIPHERAL, | ||
53 | }; | ||
54 | static struct clk pioC_clk = { | ||
55 | .name = "pioC_clk", | ||
56 | .pmc_mask = 1 << AT91SAM9261_ID_PIOC, | ||
57 | .type = CLK_TYPE_PERIPHERAL, | ||
58 | }; | ||
59 | static struct clk usart0_clk = { | ||
60 | .name = "usart0_clk", | ||
61 | .pmc_mask = 1 << AT91SAM9261_ID_US0, | ||
62 | .type = CLK_TYPE_PERIPHERAL, | ||
63 | }; | ||
64 | static struct clk usart1_clk = { | ||
65 | .name = "usart1_clk", | ||
66 | .pmc_mask = 1 << AT91SAM9261_ID_US1, | ||
67 | .type = CLK_TYPE_PERIPHERAL, | ||
68 | }; | ||
69 | static struct clk usart2_clk = { | ||
70 | .name = "usart2_clk", | ||
71 | .pmc_mask = 1 << AT91SAM9261_ID_US2, | ||
72 | .type = CLK_TYPE_PERIPHERAL, | ||
73 | }; | ||
74 | static struct clk mmc_clk = { | ||
75 | .name = "mci_clk", | ||
76 | .pmc_mask = 1 << AT91SAM9261_ID_MCI, | ||
77 | .type = CLK_TYPE_PERIPHERAL, | ||
78 | }; | ||
79 | static struct clk udc_clk = { | ||
80 | .name = "udc_clk", | ||
81 | .pmc_mask = 1 << AT91SAM9261_ID_UDP, | ||
82 | .type = CLK_TYPE_PERIPHERAL, | ||
83 | }; | ||
84 | static struct clk twi_clk = { | ||
85 | .name = "twi_clk", | ||
86 | .pmc_mask = 1 << AT91SAM9261_ID_TWI, | ||
87 | .type = CLK_TYPE_PERIPHERAL, | ||
88 | }; | ||
89 | static struct clk spi0_clk = { | ||
90 | .name = "spi0_clk", | ||
91 | .pmc_mask = 1 << AT91SAM9261_ID_SPI0, | ||
92 | .type = CLK_TYPE_PERIPHERAL, | ||
93 | }; | ||
94 | static struct clk spi1_clk = { | ||
95 | .name = "spi1_clk", | ||
96 | .pmc_mask = 1 << AT91SAM9261_ID_SPI1, | ||
97 | .type = CLK_TYPE_PERIPHERAL, | ||
98 | }; | ||
99 | static struct clk ohci_clk = { | ||
100 | .name = "ohci_clk", | ||
101 | .pmc_mask = 1 << AT91SAM9261_ID_UHP, | ||
102 | .type = CLK_TYPE_PERIPHERAL, | ||
103 | }; | ||
104 | static struct clk lcdc_clk = { | ||
105 | .name = "lcdc_clk", | ||
106 | .pmc_mask = 1 << AT91SAM9261_ID_LCDC, | ||
107 | .type = CLK_TYPE_PERIPHERAL, | ||
108 | }; | ||
109 | |||
110 | static struct clk *periph_clocks[] __initdata = { | ||
111 | &pioA_clk, | ||
112 | &pioB_clk, | ||
113 | &pioC_clk, | ||
114 | &usart0_clk, | ||
115 | &usart1_clk, | ||
116 | &usart2_clk, | ||
117 | &mmc_clk, | ||
118 | &udc_clk, | ||
119 | &twi_clk, | ||
120 | &spi0_clk, | ||
121 | &spi1_clk, | ||
122 | // ssc 0 .. ssc2 | ||
123 | // tc0 .. tc2 | ||
124 | &ohci_clk, | ||
125 | &lcdc_clk, | ||
126 | // irq0 .. irq2 | ||
127 | }; | ||
128 | |||
129 | /* | ||
130 | * The four programmable clocks. | ||
131 | * You must configure pin multiplexing to bring these signals out. | ||
132 | */ | ||
133 | static struct clk pck0 = { | ||
134 | .name = "pck0", | ||
135 | .pmc_mask = AT91_PMC_PCK0, | ||
136 | .type = CLK_TYPE_PROGRAMMABLE, | ||
137 | .id = 0, | ||
138 | }; | ||
139 | static struct clk pck1 = { | ||
140 | .name = "pck1", | ||
141 | .pmc_mask = AT91_PMC_PCK1, | ||
142 | .type = CLK_TYPE_PROGRAMMABLE, | ||
143 | .id = 1, | ||
144 | }; | ||
145 | static struct clk pck2 = { | ||
146 | .name = "pck2", | ||
147 | .pmc_mask = AT91_PMC_PCK2, | ||
148 | .type = CLK_TYPE_PROGRAMMABLE, | ||
149 | .id = 2, | ||
150 | }; | ||
151 | static struct clk pck3 = { | ||
152 | .name = "pck3", | ||
153 | .pmc_mask = AT91_PMC_PCK3, | ||
154 | .type = CLK_TYPE_PROGRAMMABLE, | ||
155 | .id = 3, | ||
156 | }; | ||
157 | |||
158 | /* HClocks */ | ||
159 | static struct clk hck0 = { | ||
160 | .name = "hck0", | ||
161 | .pmc_mask = AT91_PMC_HCK0, | ||
162 | .type = CLK_TYPE_SYSTEM, | ||
163 | .id = 0, | ||
164 | }; | ||
165 | static struct clk hck1 = { | ||
166 | .name = "hck1", | ||
167 | .pmc_mask = AT91_PMC_HCK1, | ||
168 | .type = CLK_TYPE_SYSTEM, | ||
169 | .id = 1, | ||
170 | }; | ||
171 | |||
172 | static void __init at91sam9261_register_clocks(void) | ||
173 | { | ||
174 | int i; | ||
175 | |||
176 | for (i = 0; i < ARRAY_SIZE(periph_clocks); i++) | ||
177 | clk_register(periph_clocks[i]); | ||
178 | |||
179 | clk_register(&pck0); | ||
180 | clk_register(&pck1); | ||
181 | clk_register(&pck2); | ||
182 | clk_register(&pck3); | ||
183 | |||
184 | clk_register(&hck0); | ||
185 | clk_register(&hck1); | ||
186 | } | ||
187 | |||
188 | /* -------------------------------------------------------------------- | ||
189 | * GPIO | ||
190 | * -------------------------------------------------------------------- */ | ||
191 | |||
192 | static struct at91_gpio_bank at91sam9261_gpio[] = { | ||
193 | { | ||
194 | .id = AT91SAM9261_ID_PIOA, | ||
195 | .offset = AT91_PIOA, | ||
196 | .clock = &pioA_clk, | ||
197 | }, { | ||
198 | .id = AT91SAM9261_ID_PIOB, | ||
199 | .offset = AT91_PIOB, | ||
200 | .clock = &pioB_clk, | ||
201 | }, { | ||
202 | .id = AT91SAM9261_ID_PIOC, | ||
203 | .offset = AT91_PIOC, | ||
204 | .clock = &pioC_clk, | ||
205 | } | ||
206 | }; | ||
207 | |||
208 | static void at91sam9261_reset(void) | ||
209 | { | ||
210 | #warning "Implement CPU reset" | ||
211 | } | ||
212 | |||
213 | |||
214 | /* -------------------------------------------------------------------- | ||
215 | * AT91SAM9261 processor initialization | ||
216 | * -------------------------------------------------------------------- */ | ||
217 | |||
218 | void __init at91sam9261_initialize(unsigned long main_clock) | ||
219 | { | ||
220 | /* Map peripherals */ | ||
221 | iotable_init(at91sam9261_io_desc, ARRAY_SIZE(at91sam9261_io_desc)); | ||
222 | |||
223 | at91_arch_reset = at91sam9261_reset; | ||
224 | at91_extern_irq = (1 << AT91SAM9261_ID_IRQ0) | (1 << AT91SAM9261_ID_IRQ1) | ||
225 | | (1 << AT91SAM9261_ID_IRQ2); | ||
226 | |||
227 | /* Init clock subsystem */ | ||
228 | at91_clock_init(main_clock); | ||
229 | |||
230 | /* Register the processor-specific clocks */ | ||
231 | at91sam9261_register_clocks(); | ||
232 | |||
233 | /* Register GPIO subsystem */ | ||
234 | at91_gpio_init(at91sam9261_gpio, 3); | ||
235 | } | ||
236 | |||
237 | /* -------------------------------------------------------------------- | ||
238 | * Interrupt initialization | ||
239 | * -------------------------------------------------------------------- */ | ||
240 | |||
241 | /* | ||
242 | * The default interrupt priority levels (0 = lowest, 7 = highest). | ||
243 | */ | ||
244 | static unsigned int at91sam9261_default_irq_priority[NR_AIC_IRQS] __initdata = { | ||
245 | 7, /* Advanced Interrupt Controller */ | ||
246 | 7, /* System Peripherals */ | ||
247 | 0, /* Parallel IO Controller A */ | ||
248 | 0, /* Parallel IO Controller B */ | ||
249 | 0, /* Parallel IO Controller C */ | ||
250 | 0, | ||
251 | 6, /* USART 0 */ | ||
252 | 6, /* USART 1 */ | ||
253 | 6, /* USART 2 */ | ||
254 | 0, /* Multimedia Card Interface */ | ||
255 | 4, /* USB Device Port */ | ||
256 | 0, /* Two-Wire Interface */ | ||
257 | 6, /* Serial Peripheral Interface 0 */ | ||
258 | 6, /* Serial Peripheral Interface 1 */ | ||
259 | 5, /* Serial Synchronous Controller 0 */ | ||
260 | 5, /* Serial Synchronous Controller 1 */ | ||
261 | 5, /* Serial Synchronous Controller 2 */ | ||
262 | 0, /* Timer Counter 0 */ | ||
263 | 0, /* Timer Counter 1 */ | ||
264 | 0, /* Timer Counter 2 */ | ||
265 | 3, /* USB Host port */ | ||
266 | 3, /* LCD Controller */ | ||
267 | 0, | ||
268 | 0, | ||
269 | 0, | ||
270 | 0, | ||
271 | 0, | ||
272 | 0, | ||
273 | 0, | ||
274 | 0, /* Advanced Interrupt Controller */ | ||
275 | 0, /* Advanced Interrupt Controller */ | ||
276 | 0, /* Advanced Interrupt Controller */ | ||
277 | }; | ||
278 | |||
279 | void __init at91sam9261_init_interrupts(unsigned int priority[NR_AIC_IRQS]) | ||
280 | { | ||
281 | if (!priority) | ||
282 | priority = at91sam9261_default_irq_priority; | ||
283 | |||
284 | /* Initialize the AIC interrupt controller */ | ||
285 | at91_aic_init(priority); | ||
286 | |||
287 | /* Enable GPIO interrupts */ | ||
288 | at91_gpio_irq_setup(); | ||
289 | } | ||