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authorLinus Torvalds <torvalds@woody.osdl.org>2006-12-07 18:40:39 -0500
committerLinus Torvalds <torvalds@woody.osdl.org>2006-12-07 18:40:39 -0500
commitea14fad0d416354a4e9bb1a04f32acba706f9548 (patch)
tree2c8acc5331f189aef1d40ddce3f40d6be9314e77 /arch/arm/mach-at91rm9200/at91sam9261.c
parent6ee7e78e7c78d871409ad4df30551c9355be7d0e (diff)
parent6705cda24fad1cb0ac82ac4f312df8ec735b39b0 (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.c289
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
23static 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 */
44static struct clk pioA_clk = {
45 .name = "pioA_clk",
46 .pmc_mask = 1 << AT91SAM9261_ID_PIOA,
47 .type = CLK_TYPE_PERIPHERAL,
48};
49static struct clk pioB_clk = {
50 .name = "pioB_clk",
51 .pmc_mask = 1 << AT91SAM9261_ID_PIOB,
52 .type = CLK_TYPE_PERIPHERAL,
53};
54static struct clk pioC_clk = {
55 .name = "pioC_clk",
56 .pmc_mask = 1 << AT91SAM9261_ID_PIOC,
57 .type = CLK_TYPE_PERIPHERAL,
58};
59static struct clk usart0_clk = {
60 .name = "usart0_clk",
61 .pmc_mask = 1 << AT91SAM9261_ID_US0,
62 .type = CLK_TYPE_PERIPHERAL,
63};
64static struct clk usart1_clk = {
65 .name = "usart1_clk",
66 .pmc_mask = 1 << AT91SAM9261_ID_US1,
67 .type = CLK_TYPE_PERIPHERAL,
68};
69static struct clk usart2_clk = {
70 .name = "usart2_clk",
71 .pmc_mask = 1 << AT91SAM9261_ID_US2,
72 .type = CLK_TYPE_PERIPHERAL,
73};
74static struct clk mmc_clk = {
75 .name = "mci_clk",
76 .pmc_mask = 1 << AT91SAM9261_ID_MCI,
77 .type = CLK_TYPE_PERIPHERAL,
78};
79static struct clk udc_clk = {
80 .name = "udc_clk",
81 .pmc_mask = 1 << AT91SAM9261_ID_UDP,
82 .type = CLK_TYPE_PERIPHERAL,
83};
84static struct clk twi_clk = {
85 .name = "twi_clk",
86 .pmc_mask = 1 << AT91SAM9261_ID_TWI,
87 .type = CLK_TYPE_PERIPHERAL,
88};
89static struct clk spi0_clk = {
90 .name = "spi0_clk",
91 .pmc_mask = 1 << AT91SAM9261_ID_SPI0,
92 .type = CLK_TYPE_PERIPHERAL,
93};
94static struct clk spi1_clk = {
95 .name = "spi1_clk",
96 .pmc_mask = 1 << AT91SAM9261_ID_SPI1,
97 .type = CLK_TYPE_PERIPHERAL,
98};
99static struct clk ohci_clk = {
100 .name = "ohci_clk",
101 .pmc_mask = 1 << AT91SAM9261_ID_UHP,
102 .type = CLK_TYPE_PERIPHERAL,
103};
104static struct clk lcdc_clk = {
105 .name = "lcdc_clk",
106 .pmc_mask = 1 << AT91SAM9261_ID_LCDC,
107 .type = CLK_TYPE_PERIPHERAL,
108};
109
110static 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 */
133static struct clk pck0 = {
134 .name = "pck0",
135 .pmc_mask = AT91_PMC_PCK0,
136 .type = CLK_TYPE_PROGRAMMABLE,
137 .id = 0,
138};
139static struct clk pck1 = {
140 .name = "pck1",
141 .pmc_mask = AT91_PMC_PCK1,
142 .type = CLK_TYPE_PROGRAMMABLE,
143 .id = 1,
144};
145static struct clk pck2 = {
146 .name = "pck2",
147 .pmc_mask = AT91_PMC_PCK2,
148 .type = CLK_TYPE_PROGRAMMABLE,
149 .id = 2,
150};
151static struct clk pck3 = {
152 .name = "pck3",
153 .pmc_mask = AT91_PMC_PCK3,
154 .type = CLK_TYPE_PROGRAMMABLE,
155 .id = 3,
156};
157
158/* HClocks */
159static struct clk hck0 = {
160 .name = "hck0",
161 .pmc_mask = AT91_PMC_HCK0,
162 .type = CLK_TYPE_SYSTEM,
163 .id = 0,
164};
165static struct clk hck1 = {
166 .name = "hck1",
167 .pmc_mask = AT91_PMC_HCK1,
168 .type = CLK_TYPE_SYSTEM,
169 .id = 1,
170};
171
172static 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
192static 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
208static void at91sam9261_reset(void)
209{
210#warning "Implement CPU reset"
211}
212
213
214/* --------------------------------------------------------------------
215 * AT91SAM9261 processor initialization
216 * -------------------------------------------------------------------- */
217
218void __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 */
244static 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
279void __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}