kernel/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/nand.h>
  20 #include <linux/mtd/partitions.h>
  21 #include <linux/mtd/physmap.h>
  22 #include <linux/input.h>
  23 #include <linux/smc91x.h>
  24 #include <linux/omapfb.h>
  25 #include <linux/platform_data/keypad-omap.h>
  26
  27 #include <asm/mach-types.h>
  28 #include <asm/mach/arch.h>
  29 #include <asm/mach/map.h>
  30
  31 #include <mach/tc.h>
  32 #include <mach/mux.h>
  33 #include <mach/flash.h>
  34
  35 #include <mach/hardware.h>
  36
  37 #include "iomap.h"
  38 #include "common.h"
  39 #include "fpga.h"
  40
  41 static const unsigned int p2_keymap[] = {
  42         KEY(0, 0, KEY_UP),
  43         KEY(1, 0, KEY_RIGHT),
  44         KEY(2, 0, KEY_LEFT),
  45         KEY(3, 0, KEY_DOWN),
  46         KEY(4, 0, KEY_ENTER),
  47         KEY(0, 1, KEY_F10),
  48         KEY(1, 1, KEY_SEND),
  49         KEY(2, 1, KEY_END),
  50         KEY(3, 1, KEY_VOLUMEDOWN),
  51         KEY(4, 1, KEY_VOLUMEUP),
  52         KEY(5, 1, KEY_RECORD),
  53         KEY(0, 2, KEY_F9),
  54         KEY(1, 2, KEY_3),
  55         KEY(2, 2, KEY_6),
  56         KEY(3, 2, KEY_9),
  57         KEY(4, 2, KEY_KPDOT),
  58         KEY(0, 3, KEY_BACK),
  59         KEY(1, 3, KEY_2),
  60         KEY(2, 3, KEY_5),
  61         KEY(3, 3, KEY_8),
  62         KEY(4, 3, KEY_0),
  63         KEY(5, 3, KEY_KPSLASH),
  64         KEY(0, 4, KEY_HOME),
  65         KEY(1, 4, KEY_1),
  66         KEY(2, 4, KEY_4),
  67         KEY(3, 4, KEY_7),
  68         KEY(4, 4, KEY_KPASTERISK),
  69         KEY(5, 4, KEY_POWER),
  70 };
  71
  72 static struct smc91x_platdata smc91x_info = {
  73         .flags  = SMC91X_USE_16BIT | SMC91X_NOWAIT,
  74         .leda   = RPC_LED_100_10,
  75         .ledb   = RPC_LED_TX_RX,
  76 };
  77
  78 static struct resource smc91x_resources[] = {
  79         [0] = {
  80                 .start  = H2P2_DBG_FPGA_ETHR_START,     /* Physical */
  81                 .end    = H2P2_DBG_FPGA_ETHR_START + 0xf,
  82                 .flags  = IORESOURCE_MEM,
  83         },
  84         [1] = {
  85                 .start  = INT_7XX_MPU_EXT_NIRQ,
  86                 .end    = 0,
  87                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
  88         },
  89 };
  90
  91 static struct mtd_partition nor_partitions[] = {
  92         /* bootloader (U-Boot, etc) in first sector */
  93         {
  94               .name             = "bootloader",
  95               .offset           = 0,
  96               .size             = SZ_128K,
  97               .mask_flags       = MTD_WRITEABLE, /* force read-only */
  98         },
  99         /* bootloader params in the next sector */
 100         {
 101               .name             = "params",
 102               .offset           = MTDPART_OFS_APPEND,
 103               .size             = SZ_128K,
 104               .mask_flags       = 0,
 105         },
 106         /* kernel */
 107         {
 108               .name             = "kernel",
 109               .offset           = MTDPART_OFS_APPEND,
 110               .size             = SZ_2M,
 111               .mask_flags       = 0
 112         },
 113         /* rest of flash is a file system */
 114         {
 115               .name             = "rootfs",
 116               .offset           = MTDPART_OFS_APPEND,
 117               .size             = MTDPART_SIZ_FULL,
 118               .mask_flags       = 0
 119         },
 120 };
 121
 122 static struct physmap_flash_data nor_data = {
 123         .width          = 2,
 124         .set_vpp        = omap1_set_vpp,
 125         .parts          = nor_partitions,
 126         .nr_parts       = ARRAY_SIZE(nor_partitions),
 127 };
 128
 129 static struct resource nor_resource = {
 130         .start          = OMAP_CS0_PHYS,
 131         .end            = OMAP_CS0_PHYS + SZ_32M - 1,
 132         .flags          = IORESOURCE_MEM,
 133 };
 134
 135 static struct platform_device nor_device = {
 136         .name           = "physmap-flash",
 137         .id             = 0,
 138         .dev            = {
 139                 .platform_data  = &nor_data,
 140         },
 141         .num_resources  = 1,
 142         .resource       = &nor_resource,
 143 };
 144
 145 #define P2_NAND_RB_GPIO_PIN     62
 146
 147 static int nand_dev_ready(struct mtd_info *mtd)
 148 {
 149         return gpio_get_value(P2_NAND_RB_GPIO_PIN);
 150 }
 151
 152 static struct platform_nand_data nand_data = {
 153         .chip   = {
 154                 .nr_chips               = 1,
 155                 .chip_offset            = 0,
 156                 .options                = NAND_SAMSUNG_LP_OPTIONS,
 157         },
 158         .ctrl   = {
 159                 .cmd_ctrl       = omap1_nand_cmd_ctl,
 160                 .dev_ready      = nand_dev_ready,
 161         },
 162 };
 163
 164 static struct resource nand_resource = {
 165         .start          = OMAP_CS3_PHYS,
 166         .end            = OMAP_CS3_PHYS + SZ_4K - 1,
 167         .flags          = IORESOURCE_MEM,
 168 };
 169
 170 static struct platform_device nand_device = {
 171         .name           = "gen_nand",
 172         .id             = 0,
 173         .dev            = {
 174                 .platform_data  = &nand_data,
 175         },
 176         .num_resources  = 1,
 177         .resource       = &nand_resource,
 178 };
 179
 180 static struct platform_device smc91x_device = {
 181         .name           = "smc91x",
 182         .id             = 0,
 183         .dev    = {
 184                 .platform_data  = &smc91x_info,
 185         },
 186         .num_resources  = ARRAY_SIZE(smc91x_resources),
 187         .resource       = smc91x_resources,
 188 };
 189
 190 static struct resource kp_resources[] = {
 191         [0] = {
 192                 .start  = INT_7XX_MPUIO_KEYPAD,
 193                 .end    = INT_7XX_MPUIO_KEYPAD,
 194                 .flags  = IORESOURCE_IRQ,
 195         },
 196 };
 197
 198 static const struct matrix_keymap_data p2_keymap_data = {
 199         .keymap         = p2_keymap,
 200         .keymap_size    = ARRAY_SIZE(p2_keymap),
 201 };
 202
 203 static struct omap_kp_platform_data kp_data = {
 204         .rows           = 8,
 205         .cols           = 8,
 206         .keymap_data    = &p2_keymap_data,
 207         .delay          = 4,
 208         .dbounce        = true,
 209 };
 210
 211 static struct platform_device kp_device = {
 212         .name           = "omap-keypad",
 213         .id             = -1,
 214         .dev            = {
 215                 .platform_data = &kp_data,
 216         },
 217         .num_resources  = ARRAY_SIZE(kp_resources),
 218         .resource       = kp_resources,
 219 };
 220
 221 static struct platform_device *devices[] __initdata = {
 222         &nor_device,
 223         &nand_device,
 224         &smc91x_device,
 225         &kp_device,
 226 };
 227
 228 static struct omap_lcd_config perseus2_lcd_config __initdata = {
 229         .ctrl_name      = "internal",
 230 };
 231
 232 static void __init perseus2_init_smc91x(void)
 233 {
 234         __raw_writeb(1, H2P2_DBG_FPGA_LAN_RESET);
 235         mdelay(50);
 236         __raw_writeb(__raw_readb(H2P2_DBG_FPGA_LAN_RESET) & ~1,
 237                    H2P2_DBG_FPGA_LAN_RESET);
 238         mdelay(50);
 239 }
 240
 241 static void __init omap_perseus2_init(void)
 242 {
 243         /* Early, board-dependent init */
 244
 245         /*
 246          * Hold GSM Reset until needed
 247          */
 248         omap_writew(omap_readw(OMAP7XX_DSP_M_CTL) & ~1, OMAP7XX_DSP_M_CTL);
 249
 250         /*
 251          * UARTs -> done automagically by 8250 driver
 252          */
 253
 254         /*
 255          * CSx timings, GPIO Mux ... setup
 256          */
 257
 258         /* Flash: CS0 timings setup */
 259         omap_writel(0x0000fff3, OMAP7XX_FLASH_CFG_0);
 260         omap_writel(0x00000088, OMAP7XX_FLASH_ACFG_0);
 261
 262         /*
 263          * Ethernet support through the debug board
 264          * CS1 timings setup
 265          */
 266         omap_writel(0x0000fff3, OMAP7XX_FLASH_CFG_1);
 267         omap_writel(0x00000000, OMAP7XX_FLASH_ACFG_1);
 268
 269         /*
 270          * Configure MPU_EXT_NIRQ IO in IO_CONF9 register,
 271          * It is used as the Ethernet controller interrupt
 272          */
 273         omap_writel(omap_readl(OMAP7XX_IO_CONF_9) & 0x1FFFFFFF,
 274                                 OMAP7XX_IO_CONF_9);
 275
 276         perseus2_init_smc91x();
 277
 278         BUG_ON(gpio_request(P2_NAND_RB_GPIO_PIN, "NAND ready") < 0);
 279         gpio_direction_input(P2_NAND_RB_GPIO_PIN);
 280
 281         omap_cfg_reg(L3_1610_FLASH_CS2B_OE);
 282         omap_cfg_reg(M8_1610_FLASH_CS2B_WE);
 283
 284         /* Mux pins for keypad */
 285         omap_cfg_reg(E2_7XX_KBR0);
 286         omap_cfg_reg(J7_7XX_KBR1);
 287         omap_cfg_reg(E1_7XX_KBR2);
 288         omap_cfg_reg(F3_7XX_KBR3);
 289         omap_cfg_reg(D2_7XX_KBR4);
 290         omap_cfg_reg(C2_7XX_KBC0);
 291         omap_cfg_reg(D3_7XX_KBC1);
 292         omap_cfg_reg(E4_7XX_KBC2);
 293         omap_cfg_reg(F4_7XX_KBC3);
 294         omap_cfg_reg(E3_7XX_KBC4);
 295
 296         platform_add_devices(devices, ARRAY_SIZE(devices));
 297
 298         omap_serial_init();
 299         omap_register_i2c_bus(1, 100, NULL, 0);
 300
 301         omapfb_set_lcd_config(&perseus2_lcd_config);
 302 }
 303
 304 /* Only FPGA needs to be mapped here. All others are done with ioremap */
 305 static struct map_desc omap_perseus2_io_desc[] __initdata = {
 306         {
 307                 .virtual        = H2P2_DBG_FPGA_BASE,
 308                 .pfn            = __phys_to_pfn(H2P2_DBG_FPGA_START),
 309                 .length         = H2P2_DBG_FPGA_SIZE,
 310                 .type           = MT_DEVICE
 311         }
 312 };
 313
 314 static void __init omap_perseus2_map_io(void)
 315 {
 316         omap7xx_map_io();
 317         iotable_init(omap_perseus2_io_desc,
 318                      ARRAY_SIZE(omap_perseus2_io_desc));
 319 }
 320
 321 MACHINE_START(OMAP_PERSEUS2, "OMAP730 Perseus2")
 322         /* Maintainer: Kevin Hilman <kjh@hilman.org> */
 323         .atag_offset    = 0x100,
 324         .map_io         = omap_perseus2_map_io,
 325         .init_early     = omap1_init_early,
 326         .init_irq       = omap1_init_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