Merge remote-tracking branch 'armsoc/at91/9x5' into at91-3.4-base2
[deliverable/linux.git] / arch / arm / mach-at91 / at91sam9rl.c
CommitLineData
877d7720
AV
1/*
2 * arch/arm/mach-at91/at91sam9rl.c
3 *
4 * Copyright (C) 2005 SAN People
5 * Copyright (C) 2007 Atmel Corporation
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 for
9 * more details.
10 */
11
12#include <linux/module.h>
13
c9dfafba 14#include <asm/proc-fns.h>
80b02c17 15#include <asm/irq.h>
877d7720
AV
16#include <asm/mach/arch.h>
17#include <asm/mach/map.h>
a09e64fb 18#include <mach/cpu.h>
8c3583b6 19#include <mach/at91_dbgu.h>
a09e64fb
RK
20#include <mach/at91sam9rl.h>
21#include <mach/at91_pmc.h>
22#include <mach/at91_rstc.h>
877d7720 23
21d08b9d 24#include "soc.h"
877d7720
AV
25#include "generic.h"
26#include "clock.h"
faee0cc3 27#include "sam9_smc.h"
877d7720 28
877d7720
AV
29/* --------------------------------------------------------------------
30 * Clocks
31 * -------------------------------------------------------------------- */
32
33/*
34 * The peripheral clocks.
35 */
36static struct clk pioA_clk = {
37 .name = "pioA_clk",
38 .pmc_mask = 1 << AT91SAM9RL_ID_PIOA,
39 .type = CLK_TYPE_PERIPHERAL,
40};
41static struct clk pioB_clk = {
42 .name = "pioB_clk",
43 .pmc_mask = 1 << AT91SAM9RL_ID_PIOB,
44 .type = CLK_TYPE_PERIPHERAL,
45};
46static struct clk pioC_clk = {
47 .name = "pioC_clk",
48 .pmc_mask = 1 << AT91SAM9RL_ID_PIOC,
49 .type = CLK_TYPE_PERIPHERAL,
50};
51static struct clk pioD_clk = {
52 .name = "pioD_clk",
53 .pmc_mask = 1 << AT91SAM9RL_ID_PIOD,
54 .type = CLK_TYPE_PERIPHERAL,
55};
56static struct clk usart0_clk = {
57 .name = "usart0_clk",
58 .pmc_mask = 1 << AT91SAM9RL_ID_US0,
59 .type = CLK_TYPE_PERIPHERAL,
60};
61static struct clk usart1_clk = {
62 .name = "usart1_clk",
63 .pmc_mask = 1 << AT91SAM9RL_ID_US1,
64 .type = CLK_TYPE_PERIPHERAL,
65};
66static struct clk usart2_clk = {
67 .name = "usart2_clk",
68 .pmc_mask = 1 << AT91SAM9RL_ID_US2,
69 .type = CLK_TYPE_PERIPHERAL,
70};
71static struct clk usart3_clk = {
72 .name = "usart3_clk",
73 .pmc_mask = 1 << AT91SAM9RL_ID_US3,
74 .type = CLK_TYPE_PERIPHERAL,
75};
76static struct clk mmc_clk = {
77 .name = "mci_clk",
78 .pmc_mask = 1 << AT91SAM9RL_ID_MCI,
79 .type = CLK_TYPE_PERIPHERAL,
80};
81static struct clk twi0_clk = {
82 .name = "twi0_clk",
83 .pmc_mask = 1 << AT91SAM9RL_ID_TWI0,
84 .type = CLK_TYPE_PERIPHERAL,
85};
86static struct clk twi1_clk = {
87 .name = "twi1_clk",
88 .pmc_mask = 1 << AT91SAM9RL_ID_TWI1,
89 .type = CLK_TYPE_PERIPHERAL,
90};
91static struct clk spi_clk = {
92 .name = "spi_clk",
93 .pmc_mask = 1 << AT91SAM9RL_ID_SPI,
94 .type = CLK_TYPE_PERIPHERAL,
95};
96static struct clk ssc0_clk = {
97 .name = "ssc0_clk",
98 .pmc_mask = 1 << AT91SAM9RL_ID_SSC0,
99 .type = CLK_TYPE_PERIPHERAL,
100};
101static struct clk ssc1_clk = {
102 .name = "ssc1_clk",
103 .pmc_mask = 1 << AT91SAM9RL_ID_SSC1,
104 .type = CLK_TYPE_PERIPHERAL,
105};
106static struct clk tc0_clk = {
107 .name = "tc0_clk",
108 .pmc_mask = 1 << AT91SAM9RL_ID_TC0,
109 .type = CLK_TYPE_PERIPHERAL,
110};
111static struct clk tc1_clk = {
112 .name = "tc1_clk",
113 .pmc_mask = 1 << AT91SAM9RL_ID_TC1,
114 .type = CLK_TYPE_PERIPHERAL,
115};
116static struct clk tc2_clk = {
117 .name = "tc2_clk",
118 .pmc_mask = 1 << AT91SAM9RL_ID_TC2,
119 .type = CLK_TYPE_PERIPHERAL,
120};
bb1ad68b
AV
121static struct clk pwm_clk = {
122 .name = "pwm_clk",
877d7720
AV
123 .pmc_mask = 1 << AT91SAM9RL_ID_PWMC,
124 .type = CLK_TYPE_PERIPHERAL,
125};
126static struct clk tsc_clk = {
127 .name = "tsc_clk",
128 .pmc_mask = 1 << AT91SAM9RL_ID_TSC,
129 .type = CLK_TYPE_PERIPHERAL,
130};
131static struct clk dma_clk = {
132 .name = "dma_clk",
133 .pmc_mask = 1 << AT91SAM9RL_ID_DMA,
134 .type = CLK_TYPE_PERIPHERAL,
135};
136static struct clk udphs_clk = {
137 .name = "udphs_clk",
138 .pmc_mask = 1 << AT91SAM9RL_ID_UDPHS,
139 .type = CLK_TYPE_PERIPHERAL,
140};
141static struct clk lcdc_clk = {
142 .name = "lcdc_clk",
143 .pmc_mask = 1 << AT91SAM9RL_ID_LCDC,
144 .type = CLK_TYPE_PERIPHERAL,
145};
146static struct clk ac97_clk = {
147 .name = "ac97_clk",
148 .pmc_mask = 1 << AT91SAM9RL_ID_AC97C,
149 .type = CLK_TYPE_PERIPHERAL,
150};
151
152static struct clk *periph_clocks[] __initdata = {
153 &pioA_clk,
154 &pioB_clk,
155 &pioC_clk,
156 &pioD_clk,
157 &usart0_clk,
158 &usart1_clk,
159 &usart2_clk,
160 &usart3_clk,
161 &mmc_clk,
162 &twi0_clk,
163 &twi1_clk,
164 &spi_clk,
165 &ssc0_clk,
166 &ssc1_clk,
167 &tc0_clk,
168 &tc1_clk,
169 &tc2_clk,
bb1ad68b 170 &pwm_clk,
877d7720
AV
171 &tsc_clk,
172 &dma_clk,
173 &udphs_clk,
174 &lcdc_clk,
175 &ac97_clk,
176 // irq0
177};
178
bd602995 179static struct clk_lookup periph_clocks_lookups[] = {
9d87159e
JCPV
180 CLKDEV_CON_DEV_ID("hclk", "atmel_usba_udc", &utmi_clk),
181 CLKDEV_CON_DEV_ID("pclk", "atmel_usba_udc", &udphs_clk),
bd602995
JCPV
182 CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.0", &tc0_clk),
183 CLKDEV_CON_DEV_ID("t1_clk", "atmel_tcb.0", &tc1_clk),
184 CLKDEV_CON_DEV_ID("t2_clk", "atmel_tcb.0", &tc2_clk),
185 CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc0_clk),
186 CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk),
619d4a4b
JCPV
187 CLKDEV_CON_ID("pioA", &pioA_clk),
188 CLKDEV_CON_ID("pioB", &pioB_clk),
189 CLKDEV_CON_ID("pioC", &pioC_clk),
190 CLKDEV_CON_ID("pioD", &pioD_clk),
bd602995
JCPV
191};
192
193static struct clk_lookup usart_clocks_lookups[] = {
194 CLKDEV_CON_DEV_ID("usart", "atmel_usart.0", &mck),
195 CLKDEV_CON_DEV_ID("usart", "atmel_usart.1", &usart0_clk),
196 CLKDEV_CON_DEV_ID("usart", "atmel_usart.2", &usart1_clk),
197 CLKDEV_CON_DEV_ID("usart", "atmel_usart.3", &usart2_clk),
198 CLKDEV_CON_DEV_ID("usart", "atmel_usart.4", &usart3_clk),
199};
200
877d7720
AV
201/*
202 * The two programmable clocks.
203 * You must configure pin multiplexing to bring these signals out.
204 */
205static struct clk pck0 = {
206 .name = "pck0",
207 .pmc_mask = AT91_PMC_PCK0,
208 .type = CLK_TYPE_PROGRAMMABLE,
209 .id = 0,
210};
211static struct clk pck1 = {
212 .name = "pck1",
213 .pmc_mask = AT91_PMC_PCK1,
214 .type = CLK_TYPE_PROGRAMMABLE,
215 .id = 1,
216};
217
218static void __init at91sam9rl_register_clocks(void)
219{
220 int i;
221
222 for (i = 0; i < ARRAY_SIZE(periph_clocks); i++)
223 clk_register(periph_clocks[i]);
224
bd602995
JCPV
225 clkdev_add_table(periph_clocks_lookups,
226 ARRAY_SIZE(periph_clocks_lookups));
227 clkdev_add_table(usart_clocks_lookups,
228 ARRAY_SIZE(usart_clocks_lookups));
229
877d7720
AV
230 clk_register(&pck0);
231 clk_register(&pck1);
232}
233
bd602995
JCPV
234static struct clk_lookup console_clock_lookup;
235
236void __init at91sam9rl_set_console_clock(int id)
237{
238 if (id >= ARRAY_SIZE(usart_clocks_lookups))
239 return;
240
241 console_clock_lookup.con_id = "usart";
242 console_clock_lookup.clk = usart_clocks_lookups[id].clk;
243 clkdev_add(&console_clock_lookup);
244}
245
877d7720
AV
246/* --------------------------------------------------------------------
247 * GPIO
248 * -------------------------------------------------------------------- */
249
1a2d9156 250static struct at91_gpio_bank at91sam9rl_gpio[] __initdata = {
877d7720
AV
251 {
252 .id = AT91SAM9RL_ID_PIOA,
80e91cb8 253 .regbase = AT91SAM9RL_BASE_PIOA,
877d7720
AV
254 }, {
255 .id = AT91SAM9RL_ID_PIOB,
80e91cb8 256 .regbase = AT91SAM9RL_BASE_PIOB,
877d7720
AV
257 }, {
258 .id = AT91SAM9RL_ID_PIOC,
80e91cb8 259 .regbase = AT91SAM9RL_BASE_PIOC,
877d7720
AV
260 }, {
261 .id = AT91SAM9RL_ID_PIOD,
80e91cb8 262 .regbase = AT91SAM9RL_BASE_PIOD,
877d7720
AV
263 }
264};
265
877d7720
AV
266/* --------------------------------------------------------------------
267 * AT91SAM9RL processor initialization
268 * -------------------------------------------------------------------- */
269
21d08b9d 270static void __init at91sam9rl_map_io(void)
877d7720 271{
8c3583b6 272 unsigned long sram_size;
877d7720 273
8c3583b6 274 switch (at91_soc_initdata.cidr & AT91_CIDR_SRAMSIZ) {
877d7720
AV
275 case AT91_CIDR_SRAMSIZ_32K:
276 sram_size = 2 * SZ_16K;
277 break;
278 case AT91_CIDR_SRAMSIZ_16K:
279 default:
280 sram_size = SZ_16K;
281 }
282
877d7720 283 /* Map SRAM */
f0051d82 284 at91_init_sram(0, AT91SAM9RL_SRAM_BASE, sram_size);
1b021a3b 285}
877d7720 286
cfa5a1fe
JCPV
287static void __init at91sam9rl_ioremap_registers(void)
288{
f22deee5 289 at91_ioremap_shdwc(AT91SAM9RL_BASE_SHDWC);
e9f68b5c 290 at91_ioremap_rstc(AT91SAM9RL_BASE_RSTC);
4ab0c599 291 at91sam926x_ioremap_pit(AT91SAM9RL_BASE_PIT);
faee0cc3 292 at91sam9_ioremap_smc(0, AT91SAM9RL_BASE_SMC);
cfa5a1fe
JCPV
293}
294
c9dfafba
NP
295static void at91sam9rl_idle(void)
296{
297 at91_sys_write(AT91_PMC_SCDR, AT91_PMC_PCK);
298 cpu_do_idle();
299}
300
46539374 301static void __init at91sam9rl_initialize(void)
1b021a3b 302{
c9dfafba 303 arm_pm_idle = at91sam9rl_idle;
1b2073e7 304 arm_pm_restart = at91sam9_alt_restart;
877d7720
AV
305 at91_extern_irq = (1 << AT91SAM9RL_ID_IRQ0);
306
877d7720
AV
307 /* Register GPIO subsystem */
308 at91_gpio_init(at91sam9rl_gpio, 4);
309}
310
311/* --------------------------------------------------------------------
312 * Interrupt initialization
313 * -------------------------------------------------------------------- */
314
315/*
316 * The default interrupt priority levels (0 = lowest, 7 = highest).
317 */
318static unsigned int at91sam9rl_default_irq_priority[NR_AIC_IRQS] __initdata = {
319 7, /* Advanced Interrupt Controller */
320 7, /* System Peripherals */
321 1, /* Parallel IO Controller A */
322 1, /* Parallel IO Controller B */
323 1, /* Parallel IO Controller C */
324 1, /* Parallel IO Controller D */
325 5, /* USART 0 */
326 5, /* USART 1 */
327 5, /* USART 2 */
328 5, /* USART 3 */
329 0, /* Multimedia Card Interface */
330 6, /* Two-Wire Interface 0 */
331 6, /* Two-Wire Interface 1 */
332 5, /* Serial Peripheral Interface */
333 4, /* Serial Synchronous Controller 0 */
334 4, /* Serial Synchronous Controller 1 */
335 0, /* Timer Counter 0 */
336 0, /* Timer Counter 1 */
337 0, /* Timer Counter 2 */
338 0,
339 0, /* Touch Screen Controller */
340 0, /* DMA Controller */
341 2, /* USB Device High speed port */
342 2, /* LCD Controller */
343 6, /* AC97 Controller */
344 0,
345 0,
346 0,
347 0,
348 0,
349 0,
350 0, /* Advanced Interrupt Controller */
351};
352
8c3583b6 353struct at91_init_soc __initdata at91sam9rl_soc = {
21d08b9d 354 .map_io = at91sam9rl_map_io,
92100c12 355 .default_irq_priority = at91sam9rl_default_irq_priority,
cfa5a1fe 356 .ioremap_registers = at91sam9rl_ioremap_registers,
51ddec76 357 .register_clocks = at91sam9rl_register_clocks,
21d08b9d
JCPV
358 .init = at91sam9rl_initialize,
359};
This page took 0.371575 seconds and 5 git commands to generate.