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

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