linux/arch/arm/mach-omap1/board-palmtt.c
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   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * linux/arch/arm/mach-omap1/board-palmtt.c
   4 *
   5 * Modified from board-palmtt2.c
   6 *
   7 * Modified and amended for Palm Tungsten|T
   8 * by Marek Vasut <marek.vasut@gmail.com>
   9 */
  10
  11#include <linux/delay.h>
  12#include <linux/gpio.h>
  13#include <linux/kernel.h>
  14#include <linux/init.h>
  15#include <linux/platform_device.h>
  16#include <linux/notifier.h>
  17#include <linux/clk.h>
  18#include <linux/input.h>
  19#include <linux/interrupt.h>
  20#include <linux/mtd/mtd.h>
  21#include <linux/mtd/partitions.h>
  22#include <linux/mtd/physmap.h>
  23#include <linux/leds.h>
  24#include <linux/omapfb.h>
  25#include <linux/spi/spi.h>
  26#include <linux/spi/ads7846.h>
  27#include <linux/platform_data/omap1_bl.h>
  28#include <linux/platform_data/leds-omap.h>
  29
  30#include <asm/mach-types.h>
  31#include <asm/mach/arch.h>
  32#include <asm/mach/map.h>
  33
  34#include "flash.h"
  35#include <mach/mux.h>
  36#include <linux/omap-dma.h>
  37#include <mach/tc.h>
  38#include <linux/platform_data/keypad-omap.h>
  39
  40#include <mach/hardware.h>
  41#include <mach/usb.h>
  42
  43#include "common.h"
  44
  45#define PALMTT_USBDETECT_GPIO   0
  46#define PALMTT_CABLE_GPIO       1
  47#define PALMTT_LED_GPIO         3
  48#define PALMTT_PENIRQ_GPIO      6
  49#define PALMTT_MMC_WP_GPIO      8
  50#define PALMTT_HDQ_GPIO         11
  51
  52static const unsigned int palmtt_keymap[] = {
  53        KEY(0, 0, KEY_ESC),
  54        KEY(1, 0, KEY_SPACE),
  55        KEY(2, 0, KEY_LEFTCTRL),
  56        KEY(3, 0, KEY_TAB),
  57        KEY(4, 0, KEY_ENTER),
  58        KEY(0, 1, KEY_LEFT),
  59        KEY(1, 1, KEY_DOWN),
  60        KEY(2, 1, KEY_UP),
  61        KEY(3, 1, KEY_RIGHT),
  62        KEY(0, 2, KEY_SLEEP),
  63        KEY(4, 2, KEY_Y),
  64};
  65
  66static struct mtd_partition palmtt_partitions[] = {
  67        {
  68                .name           = "write8k",
  69                .offset         = 0,
  70                .size           = SZ_8K,
  71                .mask_flags     = 0,
  72        },
  73        {
  74                .name           = "PalmOS-BootLoader(ro)",
  75                .offset         = SZ_8K,
  76                .size           = 7 * SZ_8K,
  77                .mask_flags     = MTD_WRITEABLE,
  78        },
  79        {
  80                .name           = "u-boot",
  81                .offset         = MTDPART_OFS_APPEND,
  82                .size           = 8 * SZ_8K,
  83                .mask_flags     = 0,
  84        },
  85        {
  86                .name           = "PalmOS-FS(ro)",
  87                .offset         = MTDPART_OFS_APPEND,
  88                .size           = 7 * SZ_1M + 4 * SZ_64K - 16 * SZ_8K,
  89                .mask_flags     = MTD_WRITEABLE,
  90        },
  91        {
  92                .name           = "u-boot(rez)",
  93                .offset         = MTDPART_OFS_APPEND,
  94                .size           = SZ_128K,
  95                .mask_flags     = 0
  96        },
  97        {
  98                .name           = "empty",
  99                .offset         = MTDPART_OFS_APPEND,
 100                .size           = MTDPART_SIZ_FULL,
 101                .mask_flags     = 0
 102        }
 103};
 104
 105static struct physmap_flash_data palmtt_flash_data = {
 106        .width          = 2,
 107        .set_vpp        = omap1_set_vpp,
 108        .parts          = palmtt_partitions,
 109        .nr_parts       = ARRAY_SIZE(palmtt_partitions),
 110};
 111
 112static struct resource palmtt_flash_resource = {
 113        .start          = OMAP_CS0_PHYS,
 114        .end            = OMAP_CS0_PHYS + SZ_8M - 1,
 115        .flags          = IORESOURCE_MEM,
 116};
 117
 118static struct platform_device palmtt_flash_device = {
 119        .name           = "physmap-flash",
 120        .id             = 0,
 121        .dev            = {
 122                .platform_data  = &palmtt_flash_data,
 123        },
 124        .num_resources  = 1,
 125        .resource       = &palmtt_flash_resource,
 126};
 127
 128static struct resource palmtt_kp_resources[] = {
 129        [0] = {
 130                .start  = INT_KEYBOARD,
 131                .end    = INT_KEYBOARD,
 132                .flags  = IORESOURCE_IRQ,
 133        },
 134};
 135
 136static const struct matrix_keymap_data palmtt_keymap_data = {
 137        .keymap         = palmtt_keymap,
 138        .keymap_size    = ARRAY_SIZE(palmtt_keymap),
 139};
 140
 141static struct omap_kp_platform_data palmtt_kp_data = {
 142        .rows   = 6,
 143        .cols   = 3,
 144        .keymap_data = &palmtt_keymap_data,
 145};
 146
 147static struct platform_device palmtt_kp_device = {
 148        .name           = "omap-keypad",
 149        .id             = -1,
 150        .dev            = {
 151                .platform_data = &palmtt_kp_data,
 152        },
 153        .num_resources  = ARRAY_SIZE(palmtt_kp_resources),
 154        .resource       = palmtt_kp_resources,
 155};
 156
 157static struct platform_device palmtt_lcd_device = {
 158        .name           = "lcd_palmtt",
 159        .id             = -1,
 160};
 161
 162static struct platform_device palmtt_spi_device = {
 163        .name           = "spi_palmtt",
 164        .id             = -1,
 165};
 166
 167static struct omap_backlight_config palmtt_backlight_config = {
 168        .default_intensity      = 0xa0,
 169};
 170
 171static struct platform_device palmtt_backlight_device = {
 172        .name           = "omap-bl",
 173        .id             = -1,
 174        .dev            = {
 175                .platform_data= &palmtt_backlight_config,
 176        },
 177};
 178
 179static struct omap_led_config palmtt_led_config[] = {
 180        {
 181                .cdev   = {
 182                        .name   = "palmtt:led0",
 183                },
 184                .gpio   = PALMTT_LED_GPIO,
 185        },
 186};
 187
 188static struct omap_led_platform_data palmtt_led_data = {
 189        .nr_leds        = ARRAY_SIZE(palmtt_led_config),
 190        .leds           = palmtt_led_config,
 191};
 192
 193static struct platform_device palmtt_led_device = {
 194        .name   = "omap-led",
 195        .id     = -1,
 196        .dev    = {
 197                .platform_data  = &palmtt_led_data,
 198        },
 199};
 200
 201static struct platform_device *palmtt_devices[] __initdata = {
 202        &palmtt_flash_device,
 203        &palmtt_kp_device,
 204        &palmtt_lcd_device,
 205        &palmtt_spi_device,
 206        &palmtt_backlight_device,
 207        &palmtt_led_device,
 208};
 209
 210static int palmtt_get_pendown_state(void)
 211{
 212        return !gpio_get_value(6);
 213}
 214
 215static const struct ads7846_platform_data palmtt_ts_info = {
 216        .model                  = 7846,
 217        .vref_delay_usecs       = 100,  /* internal, no capacitor */
 218        .x_plate_ohms           = 419,
 219        .y_plate_ohms           = 486,
 220        .get_pendown_state      = palmtt_get_pendown_state,
 221};
 222
 223static struct spi_board_info __initdata palmtt_boardinfo[] = {
 224        {
 225                /* MicroWire (bus 2) CS0 has an ads7846e */
 226                .modalias       = "ads7846",
 227                .platform_data  = &palmtt_ts_info,
 228                .max_speed_hz   = 120000        /* max sample rate at 3V */
 229                                        * 26    /* command + data + overhead */,
 230                .bus_num        = 2,
 231                .chip_select    = 0,
 232        }
 233};
 234
 235static struct omap_usb_config palmtt_usb_config __initdata = {
 236        .register_dev   = 1,
 237        .hmc_mode       = 0,
 238        .pins[0]        = 2,
 239};
 240
 241static const struct omap_lcd_config palmtt_lcd_config __initconst = {
 242        .ctrl_name      = "internal",
 243};
 244
 245static void __init omap_mpu_wdt_mode(int mode) {
 246        if (mode)
 247                omap_writew(0x8000, OMAP_WDT_TIMER_MODE);
 248        else {
 249                omap_writew(0x00f5, OMAP_WDT_TIMER_MODE);
 250                omap_writew(0x00a0, OMAP_WDT_TIMER_MODE);
 251        }
 252}
 253
 254static void __init omap_palmtt_init(void)
 255{
 256        /* mux pins for uarts */
 257        omap_cfg_reg(UART1_TX);
 258        omap_cfg_reg(UART1_RTS);
 259        omap_cfg_reg(UART2_TX);
 260        omap_cfg_reg(UART2_RTS);
 261        omap_cfg_reg(UART3_TX);
 262        omap_cfg_reg(UART3_RX);
 263
 264        omap_mpu_wdt_mode(0);
 265
 266        platform_add_devices(palmtt_devices, ARRAY_SIZE(palmtt_devices));
 267
 268        palmtt_boardinfo[0].irq = gpio_to_irq(6);
 269        spi_register_board_info(palmtt_boardinfo,ARRAY_SIZE(palmtt_boardinfo));
 270        omap_serial_init();
 271        omap1_usb_init(&palmtt_usb_config);
 272        omap_register_i2c_bus(1, 100, NULL, 0);
 273
 274        omapfb_set_lcd_config(&palmtt_lcd_config);
 275}
 276
 277MACHINE_START(OMAP_PALMTT, "OMAP1510 based Palm Tungsten|T")
 278        .atag_offset    = 0x100,
 279        .map_io         = omap15xx_map_io,
 280        .init_early     = omap1_init_early,
 281        .init_irq       = omap1_init_irq,
 282        .handle_irq     = omap1_handle_irq,
 283        .init_machine   = omap_palmtt_init,
 284        .init_late      = omap1_init_late,
 285        .init_time      = omap1_timer_init,
 286        .restart        = omap1_restart,
 287MACHINE_END
 288