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/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
  52 static 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
  66 static 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
 105 static 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
 112 static struct resource palmtt_flash_resource = {
 113         .start          = OMAP_CS0_PHYS,
 114         .end            = OMAP_CS0_PHYS + SZ_8M - 1,
 115         .flags          = IORESOURCE_MEM,
 116 };
 117
 118 static 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
 128 static struct resource palmtt_kp_resources[] = {
 129         [0] = {
 130                 .start  = INT_KEYBOARD,
 131                 .end    = INT_KEYBOARD,
 132                 .flags  = IORESOURCE_IRQ,
 133         },
 134 };
 135
 136 static const struct matrix_keymap_data palmtt_keymap_data = {
 137         .keymap         = palmtt_keymap,
 138         .keymap_size    = ARRAY_SIZE(palmtt_keymap),
 139 };
 140
 141 static struct omap_kp_platform_data palmtt_kp_data = {
 142         .rows   = 6,
 143         .cols   = 3,
 144         .keymap_data = &palmtt_keymap_data,
 145 };
 146
 147 static 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
 157 static struct platform_device palmtt_lcd_device = {
 158         .name           = "lcd_palmtt",
 159         .id             = -1,
 160 };
 161
 162 static struct platform_device palmtt_spi_device = {
 163         .name           = "spi_palmtt",
 164         .id             = -1,
 165 };
 166
 167 static struct omap_backlight_config palmtt_backlight_config = {
 168         .default_intensity      = 0xa0,
 169 };
 170
 171 static struct platform_device palmtt_backlight_device = {
 172         .name           = "omap-bl",
 173         .id             = -1,
 174         .dev            = {
 175                 .platform_data= &palmtt_backlight_config,
 176         },
 177 };
 178
 179 static struct omap_led_config palmtt_led_config[] = {
 180         {
 181                 .cdev   = {
 182                         .name   = "palmtt:led0",
 183                 },
 184                 .gpio   = PALMTT_LED_GPIO,
 185         },
 186 };
 187
 188 static struct omap_led_platform_data palmtt_led_data = {
 189         .nr_leds        = ARRAY_SIZE(palmtt_led_config),
 190         .leds           = palmtt_led_config,
 191 };
 192
 193 static struct platform_device palmtt_led_device = {
 194         .name   = "omap-led",
 195         .id     = -1,
 196         .dev    = {
 197                 .platform_data  = &palmtt_led_data,
 198         },
 199 };
 200
 201 static 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
 210 static int palmtt_get_pendown_state(void)
 211 {
 212         return !gpio_get_value(6);
 213 }
 214
 215 static 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
 223 static 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
 235 static struct omap_usb_config palmtt_usb_config __initdata = {
 236         .register_dev   = 1,
 237         .hmc_mode       = 0,
 238         .pins[0]        = 2,
 239 };
 240
 241 static const struct omap_lcd_config palmtt_lcd_config __initconst = {
 242         .ctrl_name      = "internal",
 243 };
 244
 245 static 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
 254 static 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
 277 MACHINE_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,
 287 MACHINE_END