arch/arm/mach-omap1/board-perseus2.c

   1 /*
   2  * linux/arch/arm/mach-omap1/board-perseus2.c
   3  *
   4  * Modified from board-generic.c
   5  *
   6  * Original OMAP730 support by Jean Pihet <j-pihet@ti.com>
   7  * Updated for 2.6 by Kevin Hilman <kjh@hilman.org>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12  */
  13 #include <linux/gpio.h>
  14 #include <linux/kernel.h>
  15 #include <linux/init.h>
  16 #include <linux/platform_device.h>
  17 #include <linux/delay.h>
  18 #include <linux/mtd/mtd.h>
  19 #include <linux/mtd/platnand.h>
  20 #include <linux/mtd/physmap.h>
  21 #include <linux/input.h>
  22 #include <linux/smc91x.h>
  23 #include <linux/omapfb.h>
  24 #include <linux/platform_data/keypad-omap.h>
  25
  26 #include <asm/mach-types.h>
  27 #include <asm/mach/arch.h>
  28 #include <asm/mach/map.h>
  29
  30 #include <mach/tc.h>
  31 #include <mach/mux.h>
  32 #include "flash.h"
  33
  34 #include <mach/hardware.h>
  35
  36 #include "iomap.h"
  37 #include "common.h"
  38 #include "fpga.h"
  39
  40 static const unsigned int p2_keymap[] = {
  41         KEY(0, 0, KEY_UP),
  42         KEY(1, 0, KEY_RIGHT),
  43         KEY(2, 0, KEY_LEFT),
  44         KEY(3, 0, KEY_DOWN),
  45         KEY(4, 0, KEY_ENTER),
  46         KEY(0, 1, KEY_F10),
  47         KEY(1, 1, KEY_SEND),
  48         KEY(2, 1, KEY_END),
  49         KEY(3, 1, KEY_VOLUMEDOWN),
  50         KEY(4, 1, KEY_VOLUMEUP),
  51         KEY(5, 1, KEY_RECORD),
  52         KEY(0, 2, KEY_F9),
  53         KEY(1, 2, KEY_3),
  54         KEY(2, 2, KEY_6),
  55         KEY(3, 2, KEY_9),
  56         KEY(4, 2, KEY_KPDOT),
  57         KEY(0, 3, KEY_BACK),
  58         KEY(1, 3, KEY_2),
  59         KEY(2, 3, KEY_5),
  60         KEY(3, 3, KEY_8),
  61         KEY(4, 3, KEY_0),
  62         KEY(5, 3, KEY_KPSLASH),
  63         KEY(0, 4, KEY_HOME),
  64         KEY(1, 4, KEY_1),
  65         KEY(2, 4, KEY_4),
  66         KEY(3, 4, KEY_7),
  67         KEY(4, 4, KEY_KPASTERISK),
  68         KEY(5, 4, KEY_POWER),
  69 };
  70
  71 static struct smc91x_platdata smc91x_info = {
  72         .flags  = SMC91X_USE_16BIT | SMC91X_NOWAIT,
  73         .leda   = RPC_LED_100_10,
  74         .ledb   = RPC_LED_TX_RX,
  75 };
  76
  77 static struct resource smc91x_resources[] = {
  78         [0] = {
  79                 .start  = H2P2_DBG_FPGA_ETHR_START,     /* Physical */
  80                 .end    = H2P2_DBG_FPGA_ETHR_START + 0xf,
  81                 .flags  = IORESOURCE_MEM,
  82         },
  83         [1] = {
  84                 .start  = INT_7XX_MPU_EXT_NIRQ,
  85                 .end    = 0,
  86                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
  87         },
  88 };
  89
  90 static struct mtd_partition nor_partitions[] = {
  91         /* bootloader (U-Boot, etc) in first sector */
  92         {
  93               .name             = "bootloader",
  94               .offset           = 0,
  95               .size             = SZ_128K,
  96               .mask_flags       = MTD_WRITEABLE, /* force read-only */
  97         },
  98         /* bootloader params in the next sector */
  99         {
 100               .name             = "params",
 101               .offset           = MTDPART_OFS_APPEND,
 102               .size             = SZ_128K,
 103               .mask_flags       = 0,
 104         },
 105         /* kernel */
 106         {
 107               .name             = "kernel",
 108               .offset           = MTDPART_OFS_APPEND,
 109               .size             = SZ_2M,
 110               .mask_flags       = 0
 111         },
 112         /* rest of flash is a file system */
 113         {
 114               .name             = "rootfs",
 115               .offset           = MTDPART_OFS_APPEND,
 116               .size             = MTDPART_SIZ_FULL,
 117               .mask_flags       = 0
 118         },
 119 };
 120
 121 static struct physmap_flash_data nor_data = {
 122         .width          = 2,
 123         .set_vpp        = omap1_set_vpp,
 124         .parts          = nor_partitions,
 125         .nr_parts       = ARRAY_SIZE(nor_partitions),
 126 };
 127
 128 static struct resource nor_resource = {
 129         .start          = OMAP_CS0_PHYS,
 130         .end            = OMAP_CS0_PHYS + SZ_32M - 1,
 131         .flags          = IORESOURCE_MEM,
 132 };
 133
 134 static struct platform_device nor_device = {
 135         .name           = "physmap-flash",
 136         .id             = 0,
 137         .dev            = {
 138                 .platform_data  = &nor_data,
 139         },
 140         .num_resources  = 1,
 141         .resource       = &nor_resource,
 142 };
 143
 144 #define P2_NAND_RB_GPIO_PIN     62
 145
 146 static int nand_dev_ready(struct nand_chip *chip)
 147 {
 148         return gpio_get_value(P2_NAND_RB_GPIO_PIN);
 149 }
 150
 151 static struct platform_nand_data nand_data = {
 152         .chip   = {
 153                 .nr_chips               = 1,
 154                 .chip_offset            = 0,
 155                 .options                = NAND_SAMSUNG_LP_OPTIONS,
 156         },
 157         .ctrl   = {
 158                 .cmd_ctrl       = omap1_nand_cmd_ctl,
 159                 .dev_ready      = nand_dev_ready,
 160         },
 161 };
 162
 163 static struct resource nand_resource = {
 164         .start          = OMAP_CS3_PHYS,
 165         .end            = OMAP_CS3_PHYS + SZ_4K - 1,
 166         .flags          = IORESOURCE_MEM,
 167 };
 168
 169 static struct platform_device nand_device = {
 170         .name           = "gen_nand",
 171         .id             = 0,
 172         .dev            = {
 173                 .platform_data  = &nand_data,
 174         },
 175         .num_resources  = 1,
 176         .resource       = &nand_resource,
 177 };
 178
 179 static struct platform_device smc91x_device = {
 180         .name           = "smc91x",
 181         .id             = 0,
 182         .dev    = {
 183                 .platform_data  = &smc91x_info,
 184         },
 185         .num_resources  = ARRAY_SIZE(smc91x_resources),
 186         .resource       = smc91x_resources,
 187 };
 188
 189 static struct resource kp_resources[] = {
 190         [0] = {
 191                 .start  = INT_7XX_MPUIO_KEYPAD,
 192                 .end    = INT_7XX_MPUIO_KEYPAD,
 193                 .flags  = IORESOURCE_IRQ,
 194         },
 195 };
 196
 197 static const struct matrix_keymap_data p2_keymap_data = {
 198         .keymap         = p2_keymap,
 199         .keymap_size    = ARRAY_SIZE(p2_keymap),
 200 };
 201
 202 static struct omap_kp_platform_data kp_data = {
 203         .rows           = 8,
 204         .cols           = 8,
 205         .keymap_data    = &p2_keymap_data,
 206         .delay          = 4,
 207         .dbounce        = true,
 208 };
 209
 210 static struct platform_device kp_device = {
 211         .name           = "omap-keypad",
 212         .id             = -1,
 213         .dev            = {
 214                 .platform_data = &kp_data,
 215         },
 216         .num_resources  = ARRAY_SIZE(kp_resources),
 217         .resource       = kp_resources,
 218 };
 219
 220 static struct platform_device *devices[] __initdata = {
 221         &nor_device,
 222         &nand_device,
 223         &smc91x_device,
 224         &kp_device,
 225 };
 226
 227 static const struct omap_lcd_config perseus2_lcd_config __initconst = {
 228         .ctrl_name      = "internal",
 229 };
 230
 231 static void __init perseus2_init_smc91x(void)
 232 {
 233         __raw_writeb(1, H2P2_DBG_FPGA_LAN_RESET);
 234         mdelay(50);
 235         __raw_writeb(__raw_readb(H2P2_DBG_FPGA_LAN_RESET) & ~1,
 236                    H2P2_DBG_FPGA_LAN_RESET);
 237         mdelay(50);
 238 }
 239
 240 static void __init omap_perseus2_init(void)
 241 {
 242         /* Early, board-dependent init */
 243
 244         /*
 245          * Hold GSM Reset until needed
 246          */
 247         omap_writew(omap_readw(OMAP7XX_DSP_M_CTL) & ~1, OMAP7XX_DSP_M_CTL);
 248
 249         /*
 250          * UARTs -> done automagically by 8250 driver
 251          */
 252
 253         /*
 254          * CSx timings, GPIO Mux ... setup
 255          */
 256
 257         /* Flash: CS0 timings setup */
 258         omap_writel(0x0000fff3, OMAP7XX_FLASH_CFG_0);
 259         omap_writel(0x00000088, OMAP7XX_FLASH_ACFG_0);
 260
 261         /*
 262          * Ethernet support through the debug board
 263          * CS1 timings setup
 264          */
 265         omap_writel(0x0000fff3, OMAP7XX_FLASH_CFG_1);
 266         omap_writel(0x00000000, OMAP7XX_FLASH_ACFG_1);
 267
 268         /*
 269          * Configure MPU_EXT_NIRQ IO in IO_CONF9 register,
 270          * It is used as the Ethernet controller interrupt
 271          */
 272         omap_writel(omap_readl(OMAP7XX_IO_CONF_9) & 0x1FFFFFFF,
 273                                 OMAP7XX_IO_CONF_9);
 274
 275         perseus2_init_smc91x();
 276
 277         BUG_ON(gpio_request(P2_NAND_RB_GPIO_PIN, "NAND ready") < 0);
 278         gpio_direction_input(P2_NAND_RB_GPIO_PIN);
 279
 280         omap_cfg_reg(L3_1610_FLASH_CS2B_OE);
 281         omap_cfg_reg(M8_1610_FLASH_CS2B_WE);
 282
 283         /* Mux pins for keypad */
 284         omap_cfg_reg(E2_7XX_KBR0);
 285         omap_cfg_reg(J7_7XX_KBR1);
 286         omap_cfg_reg(E1_7XX_KBR2);
 287         omap_cfg_reg(F3_7XX_KBR3);
 288         omap_cfg_reg(D2_7XX_KBR4);
 289         omap_cfg_reg(C2_7XX_KBC0);
 290         omap_cfg_reg(D3_7XX_KBC1);
 291         omap_cfg_reg(E4_7XX_KBC2);
 292         omap_cfg_reg(F4_7XX_KBC3);
 293         omap_cfg_reg(E3_7XX_KBC4);
 294
 295         platform_add_devices(devices, ARRAY_SIZE(devices));
 296
 297         omap_serial_init();
 298         omap_register_i2c_bus(1, 100, NULL, 0);
 299
 300         omapfb_set_lcd_config(&perseus2_lcd_config);
 301 }
 302
 303 /* Only FPGA needs to be mapped here. All others are done with ioremap */
 304 static struct map_desc omap_perseus2_io_desc[] __initdata = {
 305         {
 306                 .virtual        = H2P2_DBG_FPGA_BASE,
 307                 .pfn            = __phys_to_pfn(H2P2_DBG_FPGA_START),
 308                 .length         = H2P2_DBG_FPGA_SIZE,
 309                 .type           = MT_DEVICE
 310         }
 311 };
 312
 313 static void __init omap_perseus2_map_io(void)
 314 {
 315         omap7xx_map_io();
 316         iotable_init(omap_perseus2_io_desc,
 317                      ARRAY_SIZE(omap_perseus2_io_desc));
 318 }
 319
 320 MACHINE_START(OMAP_PERSEUS2, "OMAP730 Perseus2")
 321         /* Maintainer: Kevin Hilman <kjh@hilman.org> */
 322         .atag_offset    = 0x100,
 323         .map_io         = omap_perseus2_map_io,
 324         .init_early     = omap1_init_early,
 325         .init_irq       = omap1_init_irq,
 326         .handle_irq     = omap1_handle_irq,
 327         .init_machine   = omap_perseus2_init,
 328         .init_late      = omap1_init_late,
 329         .init_time      = omap1_timer_init,
 330         .restart        = omap1_restart,
 331 MACHINE_END