[ARM] 4760/1: [AT91] SPI CS0 errata on AT91RM9200
[deliverable/linux.git] / arch / arm / mach-at91 / board-csb337.c
CommitLineData
49978db4 1/*
9d041268 2 * linux/arch/arm/mach-at91/board-csb337.c
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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 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
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21#include <linux/types.h>
22#include <linux/init.h>
23#include <linux/mm.h>
24#include <linux/module.h>
25#include <linux/platform_device.h>
466e6227 26#include <linux/spi/spi.h>
127a7ec6 27#include <linux/mtd/physmap.h>
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28#include <linux/input.h>
29#include <linux/gpio_keys.h>
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30
31#include <asm/hardware.h>
32#include <asm/setup.h>
33#include <asm/mach-types.h>
34#include <asm/irq.h>
35
36#include <asm/mach/arch.h>
37#include <asm/mach/map.h>
38#include <asm/mach/irq.h>
39
49978db4 40#include <asm/arch/board.h>
466e6227 41#include <asm/arch/gpio.h>
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42
43#include "generic.h"
44
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45
46/*
47 * Serial port configuration.
48 * 0 .. 3 = USART0 .. USART3
49 * 4 = DBGU
50 */
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51static struct at91_uart_config __initdata csb337_uart_config = {
52 .console_tty = 0, /* ttyS0 */
53 .nr_tty = 2,
54 .tty_map = { 4, 1, -1, -1, -1 } /* ttyS0, ..., ttyS4 */
55};
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56
57static void __init csb337_map_io(void)
58{
2eeaaa21 59 /* Initialize processor: 3.6864 MHz crystal */
f2173834 60 at91rm9200_initialize(3686400, AT91RM9200_BGA);
49978db4 61
cc2832a1 62 /* Setup the LEDs */
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63 at91_init_leds(AT91_PIN_PB0, AT91_PIN_PB1);
64
65 /* Setup the serial ports and console */
66 at91_init_serial(&csb337_uart_config);
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67}
68
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69static void __init csb337_init_irq(void)
70{
71 at91rm9200_init_interrupts(NULL);
72}
73
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74static struct at91_eth_data __initdata csb337_eth_data = {
75 .phy_irq_pin = AT91_PIN_PC2,
76 .is_rmii = 0,
77};
78
79static struct at91_usbh_data __initdata csb337_usbh_data = {
80 .ports = 2,
81};
82
83static struct at91_udc_data __initdata csb337_udc_data = {
84 // this has no VBUS sensing pin
85 .pullup_pin = AT91_PIN_PA24,
86};
87
b5b9068c 88static struct i2c_board_info __initdata csb337_i2c_devices[] = {
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89 {
90 I2C_BOARD_INFO("rtc-ds1307", 0x68),
91 .type = "ds1307",
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92 },
93};
94
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95static struct at91_cf_data __initdata csb337_cf_data = {
96 /*
97 * connector P4 on the CSB 337 mates to
98 * connector P8 on the CSB 300CF
99 */
100
101 /* CSB337 specific */
102 .det_pin = AT91_PIN_PC3,
103
104 /* CSB300CF specific */
105 .irq_pin = AT91_PIN_PA19,
106 .vcc_pin = AT91_PIN_PD0,
107 .rst_pin = AT91_PIN_PD2,
108};
109
110static struct at91_mmc_data __initdata csb337_mmc_data = {
111 .det_pin = AT91_PIN_PD5,
c019d49b 112 .slot_b = 0,
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113 .wire4 = 1,
114 .wp_pin = AT91_PIN_PD6,
115};
116
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117static struct spi_board_info csb337_spi_devices[] = {
118 { /* CAN controller */
119 .modalias = "sak82c900",
120 .chip_select = 0,
121 .max_speed_hz = 6 * 1000 * 1000,
122 },
123};
124
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125#define CSB_FLASH_BASE AT91_CHIPSELECT_0
126#define CSB_FLASH_SIZE 0x800000
127
128static struct mtd_partition csb_flash_partitions[] = {
129 {
130 .name = "uMON flash",
131 .offset = 0,
132 .size = MTDPART_SIZ_FULL,
133 .mask_flags = MTD_WRITEABLE, /* read only */
134 }
135};
136
137static struct physmap_flash_data csb_flash_data = {
138 .width = 2,
139 .parts = csb_flash_partitions,
140 .nr_parts = ARRAY_SIZE(csb_flash_partitions),
141};
142
143static struct resource csb_flash_resources[] = {
144 {
145 .start = CSB_FLASH_BASE,
146 .end = CSB_FLASH_BASE + CSB_FLASH_SIZE - 1,
147 .flags = IORESOURCE_MEM,
148 }
149};
150
151static struct platform_device csb_flash = {
152 .name = "physmap-flash",
153 .id = 0,
154 .dev = {
155 .platform_data = &csb_flash_data,
156 },
157 .resource = csb_flash_resources,
158 .num_resources = ARRAY_SIZE(csb_flash_resources),
159};
160
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161/*
162 * GPIO Buttons (on CSB300)
163 */
164#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
165static struct gpio_keys_button csb300_buttons[] = {
166 {
167 .gpio = AT91_PIN_PB29,
168 .code = BTN_0,
169 .desc = "sw0",
170 .active_low = 1,
171 .wakeup = 1,
172 },
173 {
174 .gpio = AT91_PIN_PB28,
175 .code = BTN_1,
176 .desc = "sw1",
177 .active_low = 1,
178 .wakeup = 1,
179 },
180 {
181 .gpio = AT91_PIN_PA21,
182 .code = BTN_2,
183 .desc = "sw2",
184 .active_low = 1,
185 .wakeup = 1,
186 }
187};
188
189static struct gpio_keys_platform_data csb300_button_data = {
190 .buttons = csb300_buttons,
191 .nbuttons = ARRAY_SIZE(csb300_buttons),
192};
193
194static struct platform_device csb300_button_device = {
195 .name = "gpio-keys",
196 .id = -1,
197 .num_resources = 0,
198 .dev = {
199 .platform_data = &csb300_button_data,
200 }
201};
202
203static void __init csb300_add_device_buttons(void)
204{
205 at91_set_gpio_input(AT91_PIN_PB29, 0); /* sw0 */
206 at91_set_deglitch(AT91_PIN_PB29, 1);
207 at91_set_gpio_input(AT91_PIN_PB28, 0); /* sw1 */
208 at91_set_deglitch(AT91_PIN_PB28, 1);
209 at91_set_gpio_input(AT91_PIN_PA21, 0); /* sw2 */
210 at91_set_deglitch(AT91_PIN_PA21, 1);
211
212 platform_device_register(&csb300_button_device);
213}
214#else
215static void __init csb300_add_device_buttons(void) {}
216#endif
217
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218static void __init csb337_board_init(void)
219{
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220 /* Serial */
221 at91_add_device_serial();
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222 /* Ethernet */
223 at91_add_device_eth(&csb337_eth_data);
224 /* USB Host */
225 at91_add_device_usbh(&csb337_usbh_data);
226 /* USB Device */
227 at91_add_device_udc(&csb337_udc_data);
466e6227 228 /* I2C */
f230d3f5 229 at91_add_device_i2c(csb337_i2c_devices, ARRAY_SIZE(csb337_i2c_devices));
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230 /* Compact Flash */
231 at91_set_gpio_input(AT91_PIN_PB22, 1); /* IOIS16 */
232 at91_add_device_cf(&csb337_cf_data);
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233 /* SPI */
234 at91_add_device_spi(csb337_spi_devices, ARRAY_SIZE(csb337_spi_devices));
49978db4 235 /* MMC */
d0760b3b 236 at91_add_device_mmc(0, &csb337_mmc_data);
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237 /* NOR flash */
238 platform_device_register(&csb_flash);
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239 /* Switches on CSB300 */
240 csb300_add_device_buttons();
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241}
242
243MACHINE_START(CSB337, "Cogent CSB337")
244 /* Maintainer: Bill Gatliff */
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245 .phys_io = AT91_BASE_SYS,
246 .io_pg_offst = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
247 .boot_params = AT91_SDRAM_BASE + 0x100,
248 .timer = &at91rm9200_timer,
249 .map_io = csb337_map_io,
250 .init_irq = csb337_init_irq,
251 .init_machine = csb337_board_init,
252MACHINE_END
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