Tony Lindgren | 9b6553c | 2006-04-02 17:46:30 +0100 | [diff] [blame] | 1 | /* |
| 2 | * linux/arch/arm/mach-omap/omap2/board-apollon.c |
| 3 | * |
| 4 | * Copyright (C) 2005,2006 Samsung Electronics |
| 5 | * Author: Kyungmin Park <kyungmin.park@samsung.com> |
| 6 | * |
| 7 | * Modified from mach-omap/omap2/board-h4.c |
| 8 | * |
| 9 | * Code for apollon OMAP2 board. Should work on many OMAP2 systems where |
| 10 | * the bootloader passes the board-specific data to the kernel. |
| 11 | * Do not put any board specific code to this file; create a new machine |
| 12 | * type if you need custom low-level initializations. |
| 13 | * |
| 14 | * This program is free software; you can redistribute it and/or modify |
| 15 | * it under the terms of the GNU General Public License version 2 as |
| 16 | * published by the Free Software Foundation. |
| 17 | */ |
| 18 | |
| 19 | #include <linux/kernel.h> |
| 20 | #include <linux/init.h> |
| 21 | #include <linux/platform_device.h> |
| 22 | #include <linux/mtd/mtd.h> |
| 23 | #include <linux/mtd/partitions.h> |
| 24 | #include <linux/mtd/onenand.h> |
| 25 | #include <linux/interrupt.h> |
| 26 | #include <linux/delay.h> |
| 27 | |
| 28 | #include <asm/hardware.h> |
| 29 | #include <asm/mach-types.h> |
| 30 | #include <asm/mach/arch.h> |
| 31 | #include <asm/mach/flash.h> |
| 32 | |
| 33 | #include <asm/arch/gpio.h> |
| 34 | #include <asm/arch/mux.h> |
| 35 | #include <asm/arch/usb.h> |
| 36 | #include <asm/arch/board.h> |
| 37 | #include <asm/arch/common.h> |
| 38 | #include "prcm-regs.h" |
| 39 | |
| 40 | /* LED & Switch macros */ |
| 41 | #define LED0_GPIO13 13 |
| 42 | #define LED1_GPIO14 14 |
| 43 | #define LED2_GPIO15 15 |
| 44 | #define SW_ENTER_GPIO16 16 |
| 45 | #define SW_UP_GPIO17 17 |
| 46 | #define SW_DOWN_GPIO58 58 |
| 47 | |
| 48 | static struct mtd_partition apollon_partitions[] = { |
| 49 | { |
| 50 | .name = "X-Loader + U-Boot", |
| 51 | .offset = 0, |
| 52 | .size = SZ_128K, |
| 53 | .mask_flags = MTD_WRITEABLE, |
| 54 | }, |
| 55 | { |
| 56 | .name = "params", |
| 57 | .offset = MTDPART_OFS_APPEND, |
| 58 | .size = SZ_128K, |
| 59 | }, |
| 60 | { |
| 61 | .name = "kernel", |
| 62 | .offset = MTDPART_OFS_APPEND, |
| 63 | .size = SZ_2M, |
| 64 | }, |
| 65 | { |
| 66 | .name = "rootfs", |
| 67 | .offset = MTDPART_OFS_APPEND, |
| 68 | .size = SZ_16M, |
| 69 | }, |
| 70 | { |
| 71 | .name = "filesystem00", |
| 72 | .offset = MTDPART_OFS_APPEND, |
| 73 | .size = SZ_32M, |
| 74 | }, |
| 75 | { |
| 76 | .name = "filesystem01", |
| 77 | .offset = MTDPART_OFS_APPEND, |
| 78 | .size = MTDPART_SIZ_FULL, |
| 79 | }, |
| 80 | }; |
| 81 | |
| 82 | static struct flash_platform_data apollon_flash_data = { |
| 83 | .parts = apollon_partitions, |
| 84 | .nr_parts = ARRAY_SIZE(apollon_partitions), |
| 85 | }; |
| 86 | |
| 87 | static struct resource apollon_flash_resource = { |
| 88 | .start = APOLLON_CS0_BASE, |
| 89 | .end = APOLLON_CS0_BASE + SZ_128K, |
| 90 | .flags = IORESOURCE_MEM, |
| 91 | }; |
| 92 | |
| 93 | static struct platform_device apollon_onenand_device = { |
| 94 | .name = "onenand", |
| 95 | .id = -1, |
| 96 | .dev = { |
| 97 | .platform_data = &apollon_flash_data, |
| 98 | }, |
| 99 | .num_resources = ARRAY_SIZE(&apollon_flash_resource), |
| 100 | .resource = &apollon_flash_resource, |
| 101 | }; |
| 102 | |
| 103 | static struct resource apollon_smc91x_resources[] = { |
| 104 | [0] = { |
| 105 | .start = APOLLON_ETHR_START, /* Physical */ |
| 106 | .end = APOLLON_ETHR_START + 0xf, |
| 107 | .flags = IORESOURCE_MEM, |
| 108 | }, |
| 109 | [1] = { |
| 110 | .start = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ), |
| 111 | .end = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ), |
| 112 | .flags = IORESOURCE_IRQ, |
| 113 | }, |
| 114 | }; |
| 115 | |
| 116 | static struct platform_device apollon_smc91x_device = { |
| 117 | .name = "smc91x", |
| 118 | .id = -1, |
| 119 | .num_resources = ARRAY_SIZE(apollon_smc91x_resources), |
| 120 | .resource = apollon_smc91x_resources, |
| 121 | }; |
| 122 | |
| 123 | static struct platform_device apollon_lcd_device = { |
| 124 | .name = "apollon_lcd", |
| 125 | .id = -1, |
| 126 | }; |
| 127 | |
| 128 | static struct platform_device *apollon_devices[] __initdata = { |
| 129 | &apollon_onenand_device, |
| 130 | &apollon_smc91x_device, |
| 131 | &apollon_lcd_device, |
| 132 | }; |
| 133 | |
| 134 | static inline void __init apollon_init_smc91x(void) |
| 135 | { |
| 136 | /* Make sure CS1 timings are correct */ |
| 137 | GPMC_CONFIG1_1 = 0x00011203; |
| 138 | GPMC_CONFIG2_1 = 0x001f1f01; |
| 139 | GPMC_CONFIG3_1 = 0x00080803; |
| 140 | GPMC_CONFIG4_1 = 0x1c091c09; |
| 141 | GPMC_CONFIG5_1 = 0x041f1f1f; |
| 142 | GPMC_CONFIG6_1 = 0x000004c4; |
| 143 | GPMC_CONFIG7_1 = 0x00000f40 | (APOLLON_CS1_BASE >> 24); |
| 144 | udelay(100); |
| 145 | |
| 146 | omap_cfg_reg(W4__24XX_GPIO74); |
| 147 | if (omap_request_gpio(APOLLON_ETHR_GPIO_IRQ) < 0) { |
| 148 | printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n", |
| 149 | APOLLON_ETHR_GPIO_IRQ); |
| 150 | return; |
| 151 | } |
| 152 | omap_set_gpio_direction(APOLLON_ETHR_GPIO_IRQ, 1); |
| 153 | } |
| 154 | |
| 155 | static void __init omap_apollon_init_irq(void) |
| 156 | { |
| 157 | omap2_init_common_hw(); |
| 158 | omap_init_irq(); |
| 159 | omap_gpio_init(); |
| 160 | apollon_init_smc91x(); |
| 161 | } |
| 162 | |
| 163 | static struct omap_uart_config apollon_uart_config __initdata = { |
| 164 | .enabled_uarts = (1 << 0) | (0 << 1) | (0 << 2), |
| 165 | }; |
| 166 | |
| 167 | static struct omap_mmc_config apollon_mmc_config __initdata = { |
| 168 | .mmc [0] = { |
Kyungmin Park | abc45e1 | 2006-09-25 12:41:25 +0300 | [diff] [blame] | 169 | .enabled = 1, |
| 170 | .wire4 = 1, |
Tony Lindgren | 9b6553c | 2006-04-02 17:46:30 +0100 | [diff] [blame] | 171 | .wp_pin = -1, |
| 172 | .power_pin = -1, |
| 173 | .switch_pin = -1, |
| 174 | }, |
| 175 | }; |
| 176 | |
| 177 | static struct omap_lcd_config apollon_lcd_config __initdata = { |
| 178 | .ctrl_name = "internal", |
| 179 | }; |
| 180 | |
| 181 | static struct omap_board_config_kernel apollon_config[] = { |
| 182 | { OMAP_TAG_UART, &apollon_uart_config }, |
| 183 | { OMAP_TAG_MMC, &apollon_mmc_config }, |
| 184 | { OMAP_TAG_LCD, &apollon_lcd_config }, |
| 185 | }; |
| 186 | |
| 187 | static void __init apollon_led_init(void) |
| 188 | { |
| 189 | /* LED0 - AA10 */ |
| 190 | omap_cfg_reg(AA10_242X_GPIO13); |
| 191 | omap_request_gpio(LED0_GPIO13); |
| 192 | omap_set_gpio_direction(LED0_GPIO13, 0); |
| 193 | omap_set_gpio_dataout(LED0_GPIO13, 0); |
| 194 | /* LED1 - AA6 */ |
| 195 | omap_cfg_reg(AA6_242X_GPIO14); |
| 196 | omap_request_gpio(LED1_GPIO14); |
| 197 | omap_set_gpio_direction(LED1_GPIO14, 0); |
| 198 | omap_set_gpio_dataout(LED1_GPIO14, 0); |
| 199 | /* LED2 - AA4 */ |
| 200 | omap_cfg_reg(AA4_242X_GPIO15); |
| 201 | omap_request_gpio(LED2_GPIO15); |
| 202 | omap_set_gpio_direction(LED2_GPIO15, 0); |
| 203 | omap_set_gpio_dataout(LED2_GPIO15, 0); |
| 204 | } |
| 205 | |
| 206 | static irqreturn_t apollon_sw_interrupt(int irq, void *ignored, struct pt_regs *regs) |
| 207 | { |
| 208 | static unsigned int led0, led1, led2; |
| 209 | |
| 210 | if (irq == OMAP_GPIO_IRQ(SW_ENTER_GPIO16)) |
| 211 | omap_set_gpio_dataout(LED0_GPIO13, led0 ^= 1); |
| 212 | else if (irq == OMAP_GPIO_IRQ(SW_UP_GPIO17)) |
| 213 | omap_set_gpio_dataout(LED1_GPIO14, led1 ^= 1); |
| 214 | else if (irq == OMAP_GPIO_IRQ(SW_DOWN_GPIO58)) |
| 215 | omap_set_gpio_dataout(LED2_GPIO15, led2 ^= 1); |
| 216 | |
| 217 | return IRQ_HANDLED; |
| 218 | } |
| 219 | |
| 220 | static void __init apollon_sw_init(void) |
| 221 | { |
| 222 | /* Enter SW - Y11 */ |
| 223 | omap_cfg_reg(Y11_242X_GPIO16); |
| 224 | omap_request_gpio(SW_ENTER_GPIO16); |
| 225 | omap_set_gpio_direction(SW_ENTER_GPIO16, 1); |
| 226 | /* Up SW - AA12 */ |
| 227 | omap_cfg_reg(AA12_242X_GPIO17); |
| 228 | omap_request_gpio(SW_UP_GPIO17); |
| 229 | omap_set_gpio_direction(SW_UP_GPIO17, 1); |
| 230 | /* Down SW - AA8 */ |
| 231 | omap_cfg_reg(AA8_242X_GPIO58); |
| 232 | omap_request_gpio(SW_DOWN_GPIO58); |
| 233 | omap_set_gpio_direction(SW_DOWN_GPIO58, 1); |
| 234 | |
| 235 | set_irq_type(OMAP_GPIO_IRQ(SW_ENTER_GPIO16), IRQT_RISING); |
| 236 | if (request_irq(OMAP_GPIO_IRQ(SW_ENTER_GPIO16), &apollon_sw_interrupt, |
Thomas Gleixner | 52e405e | 2006-07-03 02:20:05 +0200 | [diff] [blame] | 237 | IRQF_SHARED, "enter sw", |
Tony Lindgren | 9b6553c | 2006-04-02 17:46:30 +0100 | [diff] [blame] | 238 | &apollon_sw_interrupt)) |
| 239 | return; |
| 240 | set_irq_type(OMAP_GPIO_IRQ(SW_UP_GPIO17), IRQT_RISING); |
| 241 | if (request_irq(OMAP_GPIO_IRQ(SW_UP_GPIO17), &apollon_sw_interrupt, |
Thomas Gleixner | 52e405e | 2006-07-03 02:20:05 +0200 | [diff] [blame] | 242 | IRQF_SHARED, "up sw", |
Tony Lindgren | 9b6553c | 2006-04-02 17:46:30 +0100 | [diff] [blame] | 243 | &apollon_sw_interrupt)) |
| 244 | return; |
| 245 | set_irq_type(OMAP_GPIO_IRQ(SW_DOWN_GPIO58), IRQT_RISING); |
| 246 | if (request_irq(OMAP_GPIO_IRQ(SW_DOWN_GPIO58), &apollon_sw_interrupt, |
Thomas Gleixner | 52e405e | 2006-07-03 02:20:05 +0200 | [diff] [blame] | 247 | IRQF_SHARED, "down sw", |
Tony Lindgren | 9b6553c | 2006-04-02 17:46:30 +0100 | [diff] [blame] | 248 | &apollon_sw_interrupt)) |
| 249 | return; |
| 250 | } |
| 251 | |
| 252 | static void __init omap_apollon_init(void) |
| 253 | { |
| 254 | apollon_led_init(); |
| 255 | apollon_sw_init(); |
| 256 | |
| 257 | /* REVISIT: where's the correct place */ |
| 258 | omap_cfg_reg(W19_24XX_SYS_NIRQ); |
| 259 | |
Kyungmin Park | abc45e1 | 2006-09-25 12:41:25 +0300 | [diff] [blame] | 260 | /* Use Interal loop-back in MMC/SDIO Module Input Clock selection */ |
| 261 | CONTROL_DEVCONF |= (1 << 24); |
| 262 | |
Tony Lindgren | 9b6553c | 2006-04-02 17:46:30 +0100 | [diff] [blame] | 263 | /* |
| 264 | * Make sure the serial ports are muxed on at this point. |
| 265 | * You have to mux them off in device drivers later on |
| 266 | * if not needed. |
| 267 | */ |
| 268 | platform_add_devices(apollon_devices, ARRAY_SIZE(apollon_devices)); |
| 269 | omap_board_config = apollon_config; |
| 270 | omap_board_config_size = ARRAY_SIZE(apollon_config); |
| 271 | omap_serial_init(); |
| 272 | } |
| 273 | |
| 274 | static void __init omap_apollon_map_io(void) |
| 275 | { |
| 276 | omap2_map_common_io(); |
| 277 | } |
| 278 | |
| 279 | MACHINE_START(OMAP_APOLLON, "OMAP24xx Apollon") |
| 280 | /* Maintainer: Kyungmin Park <kyungmin.park@samsung.com> */ |
| 281 | .phys_io = 0x48000000, |
| 282 | .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc, |
| 283 | .boot_params = 0x80000100, |
| 284 | .map_io = omap_apollon_map_io, |
| 285 | .init_irq = omap_apollon_init_irq, |
| 286 | .init_machine = omap_apollon_init, |
| 287 | .timer = &omap_timer, |
| 288 | MACHINE_END |