2 * arch/arm/mach-at91/at91sam9263.c
4 * Copyright (C) 2007 Atmel Corporation.
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.
13 #include <linux/module.h>
15 #include <asm/proc-fns.h>
17 #include <asm/mach/arch.h>
18 #include <asm/mach/map.h>
19 #include <asm/system_misc.h>
20 #include <mach/at91sam9263.h>
21 #include <mach/at91_aic.h>
22 #include <mach/at91_pmc.h>
23 #include <mach/at91_rstc.h>
30 /* --------------------------------------------------------------------
32 * -------------------------------------------------------------------- */
35 * The peripheral clocks.
37 static struct clk pioA_clk
= {
39 .pmc_mask
= 1 << AT91SAM9263_ID_PIOA
,
40 .type
= CLK_TYPE_PERIPHERAL
,
42 static struct clk pioB_clk
= {
44 .pmc_mask
= 1 << AT91SAM9263_ID_PIOB
,
45 .type
= CLK_TYPE_PERIPHERAL
,
47 static struct clk pioCDE_clk
= {
49 .pmc_mask
= 1 << AT91SAM9263_ID_PIOCDE
,
50 .type
= CLK_TYPE_PERIPHERAL
,
52 static struct clk usart0_clk
= {
54 .pmc_mask
= 1 << AT91SAM9263_ID_US0
,
55 .type
= CLK_TYPE_PERIPHERAL
,
57 static struct clk usart1_clk
= {
59 .pmc_mask
= 1 << AT91SAM9263_ID_US1
,
60 .type
= CLK_TYPE_PERIPHERAL
,
62 static struct clk usart2_clk
= {
64 .pmc_mask
= 1 << AT91SAM9263_ID_US2
,
65 .type
= CLK_TYPE_PERIPHERAL
,
67 static struct clk mmc0_clk
= {
69 .pmc_mask
= 1 << AT91SAM9263_ID_MCI0
,
70 .type
= CLK_TYPE_PERIPHERAL
,
72 static struct clk mmc1_clk
= {
74 .pmc_mask
= 1 << AT91SAM9263_ID_MCI1
,
75 .type
= CLK_TYPE_PERIPHERAL
,
77 static struct clk can_clk
= {
79 .pmc_mask
= 1 << AT91SAM9263_ID_CAN
,
80 .type
= CLK_TYPE_PERIPHERAL
,
82 static struct clk twi_clk
= {
84 .pmc_mask
= 1 << AT91SAM9263_ID_TWI
,
85 .type
= CLK_TYPE_PERIPHERAL
,
87 static struct clk spi0_clk
= {
89 .pmc_mask
= 1 << AT91SAM9263_ID_SPI0
,
90 .type
= CLK_TYPE_PERIPHERAL
,
92 static struct clk spi1_clk
= {
94 .pmc_mask
= 1 << AT91SAM9263_ID_SPI1
,
95 .type
= CLK_TYPE_PERIPHERAL
,
97 static struct clk ssc0_clk
= {
99 .pmc_mask
= 1 << AT91SAM9263_ID_SSC0
,
100 .type
= CLK_TYPE_PERIPHERAL
,
102 static struct clk ssc1_clk
= {
104 .pmc_mask
= 1 << AT91SAM9263_ID_SSC1
,
105 .type
= CLK_TYPE_PERIPHERAL
,
107 static struct clk ac97_clk
= {
109 .pmc_mask
= 1 << AT91SAM9263_ID_AC97C
,
110 .type
= CLK_TYPE_PERIPHERAL
,
112 static struct clk tcb_clk
= {
114 .pmc_mask
= 1 << AT91SAM9263_ID_TCB
,
115 .type
= CLK_TYPE_PERIPHERAL
,
117 static struct clk pwm_clk
= {
119 .pmc_mask
= 1 << AT91SAM9263_ID_PWMC
,
120 .type
= CLK_TYPE_PERIPHERAL
,
122 static struct clk macb_clk
= {
124 .pmc_mask
= 1 << AT91SAM9263_ID_EMAC
,
125 .type
= CLK_TYPE_PERIPHERAL
,
127 static struct clk dma_clk
= {
129 .pmc_mask
= 1 << AT91SAM9263_ID_DMA
,
130 .type
= CLK_TYPE_PERIPHERAL
,
132 static struct clk twodge_clk
= {
134 .pmc_mask
= 1 << AT91SAM9263_ID_2DGE
,
135 .type
= CLK_TYPE_PERIPHERAL
,
137 static struct clk udc_clk
= {
139 .pmc_mask
= 1 << AT91SAM9263_ID_UDP
,
140 .type
= CLK_TYPE_PERIPHERAL
,
142 static struct clk isi_clk
= {
144 .pmc_mask
= 1 << AT91SAM9263_ID_ISI
,
145 .type
= CLK_TYPE_PERIPHERAL
,
147 static struct clk lcdc_clk
= {
149 .pmc_mask
= 1 << AT91SAM9263_ID_LCDC
,
150 .type
= CLK_TYPE_PERIPHERAL
,
152 static struct clk ohci_clk
= {
154 .pmc_mask
= 1 << AT91SAM9263_ID_UHP
,
155 .type
= CLK_TYPE_PERIPHERAL
,
158 static struct clk
*periph_clocks
[] __initdata
= {
186 static struct clk_lookup periph_clocks_lookups
[] = {
187 /* One additional fake clock for macb_hclk */
188 CLKDEV_CON_ID("hclk", &macb_clk
),
189 CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc0_clk
),
190 CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk
),
191 CLKDEV_CON_DEV_ID("mci_clk", "at91_mci.0", &mmc0_clk
),
192 CLKDEV_CON_DEV_ID("mci_clk", "at91_mci.1", &mmc1_clk
),
193 CLKDEV_CON_DEV_ID("spi_clk", "atmel_spi.0", &spi0_clk
),
194 CLKDEV_CON_DEV_ID("spi_clk", "atmel_spi.1", &spi1_clk
),
195 CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.0", &tcb_clk
),
196 CLKDEV_CON_DEV_ID(NULL
, "i2c-at91sam9260", &twi_clk
),
197 /* fake hclk clock */
198 CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &ohci_clk
),
199 CLKDEV_CON_ID("pioA", &pioA_clk
),
200 CLKDEV_CON_ID("pioB", &pioB_clk
),
201 CLKDEV_CON_ID("pioC", &pioCDE_clk
),
202 CLKDEV_CON_ID("pioD", &pioCDE_clk
),
203 CLKDEV_CON_ID("pioE", &pioCDE_clk
),
204 /* more usart lookup table for DT entries */
205 CLKDEV_CON_DEV_ID("usart", "ffffee00.serial", &mck
),
206 CLKDEV_CON_DEV_ID("usart", "fff8c000.serial", &usart0_clk
),
207 CLKDEV_CON_DEV_ID("usart", "fff90000.serial", &usart1_clk
),
208 CLKDEV_CON_DEV_ID("usart", "fff94000.serial", &usart2_clk
),
209 /* more tc lookup table for DT entries */
210 CLKDEV_CON_DEV_ID("t0_clk", "fff7c000.timer", &tcb_clk
),
211 CLKDEV_CON_DEV_ID("hclk", "a00000.ohci", &ohci_clk
),
212 CLKDEV_CON_DEV_ID("spi_clk", "fffa4000.spi", &spi0_clk
),
213 CLKDEV_CON_DEV_ID("spi_clk", "fffa8000.spi", &spi1_clk
),
214 CLKDEV_CON_DEV_ID(NULL
, "fff88000.i2c", &twi_clk
),
217 static struct clk_lookup usart_clocks_lookups
[] = {
218 CLKDEV_CON_DEV_ID("usart", "atmel_usart.0", &mck
),
219 CLKDEV_CON_DEV_ID("usart", "atmel_usart.1", &usart0_clk
),
220 CLKDEV_CON_DEV_ID("usart", "atmel_usart.2", &usart1_clk
),
221 CLKDEV_CON_DEV_ID("usart", "atmel_usart.3", &usart2_clk
),
225 * The four programmable clocks.
226 * You must configure pin multiplexing to bring these signals out.
228 static struct clk pck0
= {
230 .pmc_mask
= AT91_PMC_PCK0
,
231 .type
= CLK_TYPE_PROGRAMMABLE
,
234 static struct clk pck1
= {
236 .pmc_mask
= AT91_PMC_PCK1
,
237 .type
= CLK_TYPE_PROGRAMMABLE
,
240 static struct clk pck2
= {
242 .pmc_mask
= AT91_PMC_PCK2
,
243 .type
= CLK_TYPE_PROGRAMMABLE
,
246 static struct clk pck3
= {
248 .pmc_mask
= AT91_PMC_PCK3
,
249 .type
= CLK_TYPE_PROGRAMMABLE
,
253 static void __init
at91sam9263_register_clocks(void)
257 for (i
= 0; i
< ARRAY_SIZE(periph_clocks
); i
++)
258 clk_register(periph_clocks
[i
]);
260 clkdev_add_table(periph_clocks_lookups
,
261 ARRAY_SIZE(periph_clocks_lookups
));
262 clkdev_add_table(usart_clocks_lookups
,
263 ARRAY_SIZE(usart_clocks_lookups
));
271 /* --------------------------------------------------------------------
273 * -------------------------------------------------------------------- */
275 static struct at91_gpio_bank at91sam9263_gpio
[] __initdata
= {
277 .id
= AT91SAM9263_ID_PIOA
,
278 .regbase
= AT91SAM9263_BASE_PIOA
,
280 .id
= AT91SAM9263_ID_PIOB
,
281 .regbase
= AT91SAM9263_BASE_PIOB
,
283 .id
= AT91SAM9263_ID_PIOCDE
,
284 .regbase
= AT91SAM9263_BASE_PIOC
,
286 .id
= AT91SAM9263_ID_PIOCDE
,
287 .regbase
= AT91SAM9263_BASE_PIOD
,
289 .id
= AT91SAM9263_ID_PIOCDE
,
290 .regbase
= AT91SAM9263_BASE_PIOE
,
294 /* --------------------------------------------------------------------
295 * AT91SAM9263 processor initialization
296 * -------------------------------------------------------------------- */
298 static void __init
at91sam9263_map_io(void)
300 at91_init_sram(0, AT91SAM9263_SRAM0_BASE
, AT91SAM9263_SRAM0_SIZE
);
301 at91_init_sram(1, AT91SAM9263_SRAM1_BASE
, AT91SAM9263_SRAM1_SIZE
);
304 static void __init
at91sam9263_ioremap_registers(void)
306 at91_ioremap_shdwc(AT91SAM9263_BASE_SHDWC
);
307 at91_ioremap_rstc(AT91SAM9263_BASE_RSTC
);
308 at91_ioremap_ramc(0, AT91SAM9263_BASE_SDRAMC0
, 512);
309 at91_ioremap_ramc(1, AT91SAM9263_BASE_SDRAMC1
, 512);
310 at91sam926x_ioremap_pit(AT91SAM9263_BASE_PIT
);
311 at91sam9_ioremap_smc(0, AT91SAM9263_BASE_SMC0
);
312 at91sam9_ioremap_smc(1, AT91SAM9263_BASE_SMC1
);
313 at91_ioremap_matrix(AT91SAM9263_BASE_MATRIX
);
316 static void __init
at91sam9263_initialize(void)
318 arm_pm_idle
= at91sam9_idle
;
319 arm_pm_restart
= at91sam9_alt_restart
;
320 at91_extern_irq
= (1 << AT91SAM9263_ID_IRQ0
) | (1 << AT91SAM9263_ID_IRQ1
);
322 /* Register GPIO subsystem */
323 at91_gpio_init(at91sam9263_gpio
, 5);
326 /* --------------------------------------------------------------------
327 * Interrupt initialization
328 * -------------------------------------------------------------------- */
331 * The default interrupt priority levels (0 = lowest, 7 = highest).
333 static unsigned int at91sam9263_default_irq_priority
[NR_AIC_IRQS
] __initdata
= {
334 7, /* Advanced Interrupt Controller (FIQ) */
335 7, /* System Peripherals */
336 1, /* Parallel IO Controller A */
337 1, /* Parallel IO Controller B */
338 1, /* Parallel IO Controller C, D and E */
344 0, /* Multimedia Card Interface 0 */
345 0, /* Multimedia Card Interface 1 */
347 6, /* Two-Wire Interface */
348 5, /* Serial Peripheral Interface 0 */
349 5, /* Serial Peripheral Interface 1 */
350 4, /* Serial Synchronous Controller 0 */
351 4, /* Serial Synchronous Controller 1 */
352 5, /* AC97 Controller */
353 0, /* Timer Counter 0, 1 and 2 */
354 0, /* Pulse Width Modulation Controller */
357 0, /* 2D Graphic Engine */
358 2, /* USB Device Port */
359 0, /* Image Sensor Interface */
360 3, /* LDC Controller */
361 0, /* DMA Controller */
363 2, /* USB Host port */
364 0, /* Advanced Interrupt Controller (IRQ0) */
365 0, /* Advanced Interrupt Controller (IRQ1) */
368 struct at91_init_soc __initdata at91sam9263_soc
= {
369 .map_io
= at91sam9263_map_io
,
370 .default_irq_priority
= at91sam9263_default_irq_priority
,
371 .ioremap_registers
= at91sam9263_ioremap_registers
,
372 .register_clocks
= at91sam9263_register_clocks
,
373 .init
= at91sam9263_initialize
,