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

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * linux/arch/arm/mach-omap1/board-perseus2.c
   4  *
   5  * Modified from board-generic.c
   6  *
   7  * Original OMAP730 support by Jean Pihet <j-pihet@ti.com>
   8  * Updated for 2.6 by Kevin Hilman <kjh@hilman.org>
   9  */
  10 #include <linux/gpio.h>
  11 #include <linux/kernel.h>
  12 #include <linux/init.h>
  13 #include <linux/platform_device.h>
  14 #include <linux/delay.h>
  15 #include <linux/mtd/mtd.h>
  16 #include <linux/mtd/platnand.h>
  17 #include <linux/mtd/physmap.h>
  18 #include <linux/input.h>
  19 #include <linux/smc91x.h>
  20 #include <linux/omapfb.h>
  21 #include <linux/platform_data/keypad-omap.h>
  22
  23 #include <asm/mach-types.h>
  24 #include <asm/mach/arch.h>
  25 #include <asm/mach/map.h>
  26
  27 #include <mach/tc.h>
  28 #include <mach/mux.h>
  29 #include "flash.h"
  30
  31 #include <mach/hardware.h>
  32
  33 #include "iomap.h"
  34 #include "common.h"
  35 #include "fpga.h"
  36
  37 static const unsigned int p2_keymap[] = {
  38         KEY(0, 0, KEY_UP),
  39         KEY(1, 0, KEY_RIGHT),
  40         KEY(2, 0, KEY_LEFT),
  41         KEY(3, 0, KEY_DOWN),
  42         KEY(4, 0, KEY_ENTER),
  43         KEY(0, 1, KEY_F10),
  44         KEY(1, 1, KEY_SEND),
  45         KEY(2, 1, KEY_END),
  46         KEY(3, 1, KEY_VOLUMEDOWN),
  47         KEY(4, 1, KEY_VOLUMEUP),
  48         KEY(5, 1, KEY_RECORD),
  49         KEY(0, 2, KEY_F9),
  50         KEY(1, 2, KEY_3),
  51         KEY(2, 2, KEY_6),
  52         KEY(3, 2, KEY_9),
  53         KEY(4, 2, KEY_KPDOT),
  54         KEY(0, 3, KEY_BACK),
  55         KEY(1, 3, KEY_2),
  56         KEY(2, 3, KEY_5),
  57         KEY(3, 3, KEY_8),
  58         KEY(4, 3, KEY_0),
  59         KEY(5, 3, KEY_KPSLASH),
  60         KEY(0, 4, KEY_HOME),
  61         KEY(1, 4, KEY_1),
  62         KEY(2, 4, KEY_4),
  63         KEY(3, 4, KEY_7),
  64         KEY(4, 4, KEY_KPASTERISK),
  65         KEY(5, 4, KEY_POWER),
  66 };
  67
  68 static struct smc91x_platdata smc91x_info = {
  69         .flags  = SMC91X_USE_16BIT | SMC91X_NOWAIT,
  70         .leda   = RPC_LED_100_10,
  71         .ledb   = RPC_LED_TX_RX,
  72 };
  73
  74 static struct resource smc91x_resources[] = {
  75         [0] = {
  76                 .start  = H2P2_DBG_FPGA_ETHR_START,     /* Physical */
  77                 .end    = H2P2_DBG_FPGA_ETHR_START + 0xf,
  78                 .flags  = IORESOURCE_MEM,
  79         },
  80         [1] = {
  81                 .start  = INT_7XX_MPU_EXT_NIRQ,
  82                 .end    = 0,
  83                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
  84         },
  85 };
  86
  87 static struct mtd_partition nor_partitions[] = {
  88         /* bootloader (U-Boot, etc) in first sector */
  89         {
  90               .name             = "bootloader",
  91               .offset           = 0,
  92               .size             = SZ_128K,
  93               .mask_flags       = MTD_WRITEABLE, /* force read-only */
  94         },
  95         /* bootloader params in the next sector */
  96         {
  97               .name             = "params",
  98               .offset           = MTDPART_OFS_APPEND,
  99               .size             = SZ_128K,
 100               .mask_flags       = 0,
 101         },
 102         /* kernel */
 103         {
 104               .name             = "kernel",
 105               .offset           = MTDPART_OFS_APPEND,
 106               .size             = SZ_2M,
 107               .mask_flags       = 0
 108         },
 109         /* rest of flash is a file system */
 110         {
 111               .name             = "rootfs",
 112               .offset           = MTDPART_OFS_APPEND,
 113               .size             = MTDPART_SIZ_FULL,
 114               .mask_flags       = 0
 115         },
 116 };
 117
 118 static struct physmap_flash_data nor_data = {
 119         .width          = 2,
 120         .set_vpp        = omap1_set_vpp,
 121         .parts          = nor_partitions,
 122         .nr_parts       = ARRAY_SIZE(nor_partitions),
 123 };
 124
 125 static struct resource nor_resource = {
 126         .start          = OMAP_CS0_PHYS,
 127         .end            = OMAP_CS0_PHYS + SZ_32M - 1,
 128         .flags          = IORESOURCE_MEM,
 129 };
 130
 131 static struct platform_device nor_device = {
 132         .name           = "physmap-flash",
 133         .id             = 0,
 134         .dev            = {
 135                 .platform_data  = &nor_data,
 136         },
 137         .num_resources  = 1,
 138         .resource       = &nor_resource,
 139 };
 140
 141 #define P2_NAND_RB_GPIO_PIN     62
 142
 143 static int nand_dev_ready(struct nand_chip *chip)
 144 {
 145         return gpio_get_value(P2_NAND_RB_GPIO_PIN);
 146 }
 147
 148 static struct platform_nand_data nand_data = {
 149         .chip   = {
 150                 .nr_chips               = 1,
 151                 .chip_offset            = 0,
 152                 .options                = NAND_SAMSUNG_LP_OPTIONS,
 153         },
 154         .ctrl   = {
 155                 .cmd_ctrl       = omap1_nand_cmd_ctl,
 156                 .dev_ready      = nand_dev_ready,
 157         },
 158 };
 159
 160 static struct resource nand_resource = {
 161         .start          = OMAP_CS3_PHYS,
 162         .end            = OMAP_CS3_PHYS + SZ_4K - 1,
 163         .flags          = IORESOURCE_MEM,
 164 };
 165
 166 static struct platform_device nand_device = {
 167         .name           = "gen_nand",
 168         .id             = 0,
 169         .dev            = {
 170                 .platform_data  = &nand_data,
 171         },
 172         .num_resources  = 1,
 173         .resource       = &nand_resource,
 174 };
 175
 176 static struct platform_device smc91x_device = {
 177         .name           = "smc91x",
 178         .id             = 0,
 179         .dev    = {
 180                 .platform_data  = &smc91x_info,
 181         },
 182         .num_resources  = ARRAY_SIZE(smc91x_resources),
 183         .resource       = smc91x_resources,
 184 };
 185
 186 static struct resource kp_resources[] = {
 187         [0] = {
 188                 .start  = INT_7XX_MPUIO_KEYPAD,
 189                 .end    = INT_7XX_MPUIO_KEYPAD,
 190                 .flags  = IORESOURCE_IRQ,
 191         },
 192 };
 193
 194 static const struct matrix_keymap_data p2_keymap_data = {
 195         .keymap         = p2_keymap,
 196         .keymap_size    = ARRAY_SIZE(p2_keymap),
 197 };
 198
 199 static struct omap_kp_platform_data kp_data = {
 200         .rows           = 8,
 201         .cols           = 8,
 202         .keymap_data    = &p2_keymap_data,
 203         .delay          = 4,
 204         .dbounce        = true,
 205 };
 206
 207 static struct platform_device kp_device = {
 208         .name           = "omap-keypad",
 209         .id             = -1,
 210         .dev            = {
 211                 .platform_data = &kp_data,
 212         },
 213         .num_resources  = ARRAY_SIZE(kp_resources),
 214         .resource       = kp_resources,
 215 };
 216
 217 static struct platform_device *devices[] __initdata = {
 218         &nor_device,
 219         &nand_device,
 220         &smc91x_device,
 221         &kp_device,
 222 };
 223
 224 static const struct omap_lcd_config perseus2_lcd_config __initconst = {
 225         .ctrl_name      = "internal",
 226 };
 227
 228 static void __init perseus2_init_smc91x(void)
 229 {
 230         __raw_writeb(1, H2P2_DBG_FPGA_LAN_RESET);
 231         mdelay(50);
 232         __raw_writeb(__raw_readb(H2P2_DBG_FPGA_LAN_RESET) & ~1,
 233                    H2P2_DBG_FPGA_LAN_RESET);
 234         mdelay(50);
 235 }
 236
 237 static void __init omap_perseus2_init(void)
 238 {
 239         /* Early, board-dependent init */
 240
 241         /*
 242          * Hold GSM Reset until needed
 243          */
 244         omap_writew(omap_readw(OMAP7XX_DSP_M_CTL) & ~1, OMAP7XX_DSP_M_CTL);
 245
 246         /*
 247          * UARTs -> done automagically by 8250 driver
 248          */
 249
 250         /*
 251          * CSx timings, GPIO Mux ... setup
 252          */
 253
 254         /* Flash: CS0 timings setup */
 255         omap_writel(0x0000fff3, OMAP7XX_FLASH_CFG_0);
 256         omap_writel(0x00000088, OMAP7XX_FLASH_ACFG_0);
 257
 258         /*
 259          * Ethernet support through the debug board
 260          * CS1 timings setup
 261          */
 262         omap_writel(0x0000fff3, OMAP7XX_FLASH_CFG_1);
 263         omap_writel(0x00000000, OMAP7XX_FLASH_ACFG_1);
 264
 265         /*
 266          * Configure MPU_EXT_NIRQ IO in IO_CONF9 register,
 267          * It is used as the Ethernet controller interrupt
 268          */
 269         omap_writel(omap_readl(OMAP7XX_IO_CONF_9) & 0x1FFFFFFF,
 270                                 OMAP7XX_IO_CONF_9);
 271
 272         perseus2_init_smc91x();
 273
 274         BUG_ON(gpio_request(P2_NAND_RB_GPIO_PIN, "NAND ready") < 0);
 275         gpio_direction_input(P2_NAND_RB_GPIO_PIN);
 276
 277         omap_cfg_reg(L3_1610_FLASH_CS2B_OE);
 278         omap_cfg_reg(M8_1610_FLASH_CS2B_WE);
 279
 280         /* Mux pins for keypad */
 281         omap_cfg_reg(E2_7XX_KBR0);
 282         omap_cfg_reg(J7_7XX_KBR1);
 283         omap_cfg_reg(E1_7XX_KBR2);
 284         omap_cfg_reg(F3_7XX_KBR3);
 285         omap_cfg_reg(D2_7XX_KBR4);
 286         omap_cfg_reg(C2_7XX_KBC0);
 287         omap_cfg_reg(D3_7XX_KBC1);
 288         omap_cfg_reg(E4_7XX_KBC2);
 289         omap_cfg_reg(F4_7XX_KBC3);
 290         omap_cfg_reg(E3_7XX_KBC4);
 291
 292         platform_add_devices(devices, ARRAY_SIZE(devices));
 293
 294         omap_serial_init();
 295         omap_register_i2c_bus(1, 100, NULL, 0);
 296
 297         omapfb_set_lcd_config(&perseus2_lcd_config);
 298 }
 299
 300 /* Only FPGA needs to be mapped here. All others are done with ioremap */
 301 static struct map_desc omap_perseus2_io_desc[] __initdata = {
 302         {
 303                 .virtual        = H2P2_DBG_FPGA_BASE,
 304                 .pfn            = __phys_to_pfn(H2P2_DBG_FPGA_START),
 305                 .length         = H2P2_DBG_FPGA_SIZE,
 306                 .type           = MT_DEVICE
 307         }
 308 };
 309
 310 static void __init omap_perseus2_map_io(void)
 311 {
 312         omap7xx_map_io();
 313         iotable_init(omap_perseus2_io_desc,
 314                      ARRAY_SIZE(omap_perseus2_io_desc));
 315 }
 316
 317 MACHINE_START(OMAP_PERSEUS2, "OMAP730 Perseus2")
 318         /* Maintainer: Kevin Hilman <kjh@hilman.org> */
 319         .atag_offset    = 0x100,
 320         .map_io         = omap_perseus2_map_io,
 321         .init_early     = omap1_init_early,
 322         .init_irq       = omap1_init_irq,
 323         .handle_irq     = omap1_handle_irq,
 324         .init_machine   = omap_perseus2_init,
 325         .init_late      = omap1_init_late,
 326         .init_time      = omap1_timer_init,
 327         .restart        = omap1_restart,
 328 MACHINE_END