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

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * linux/arch/arm/mach-omap1/board-palmte.c
   4  *
   5  * Modified from board-generic.c
   6  *
   7  * Support for the Palm Tungsten E PDA.
   8  *
   9  * Original version : Laurent Gonzalez
  10  *
  11  * Maintainers : http://palmtelinux.sf.net
  12  *                [email protected]
  13  *
  14  * Copyright (c) 2006 Andrzej Zaborowski  <[email protected]>
  15  */
  16 #include <linux/gpio/machine.h>
  17 #include <linux/gpio/consumer.h>
  18 #include <linux/kernel.h>
  19 #include <linux/init.h>
  20 #include <linux/input.h>
  21 #include <linux/platform_device.h>
  22 #include <linux/mtd/mtd.h>
  23 #include <linux/mtd/partitions.h>
  24 #include <linux/mtd/physmap.h>
  25 #include <linux/spi/spi.h>
  26 #include <linux/interrupt.h>
  27 #include <linux/apm-emulation.h>
  28 #include <linux/omapfb.h>
  29 #include <linux/omap-dma.h>
  30 #include <linux/platform_data/keypad-omap.h>
  31 #include <linux/platform_data/omap1_bl.h>
  32
  33 #include <asm/mach-types.h>
  34 #include <asm/mach/arch.h>
  35 #include <asm/mach/map.h>
  36
  37 #include "tc.h"
  38 #include "flash.h"
  39 #include "mux.h"
  40 #include "hardware.h"
  41 #include "usb.h"
  42 #include "mmc.h"
  43 #include "common.h"
  44
  45 #define PALMTE_USBDETECT_GPIO   0
  46 #define PALMTE_USB_OR_DC_GPIO   1
  47 #define PALMTE_TSC_GPIO         4
  48 #define PALMTE_PINTDAV_GPIO     6
  49 #define PALMTE_MMC_WP_GPIO      8
  50 #define PALMTE_MMC_POWER_GPIO   9
  51 #define PALMTE_HDQ_GPIO         11
  52 #define PALMTE_HEADPHONES_GPIO  14
  53 #define PALMTE_SPEAKER_GPIO     15
  54
  55 static const unsigned int palmte_keymap[] = {
  56         KEY(0, 0, KEY_F1),              /* Calendar */
  57         KEY(1, 0, KEY_F2),              /* Contacts */
  58         KEY(2, 0, KEY_F3),              /* Tasks List */
  59         KEY(3, 0, KEY_F4),              /* Note Pad */
  60         KEY(4, 0, KEY_POWER),
  61         KEY(0, 1, KEY_LEFT),
  62         KEY(1, 1, KEY_DOWN),
  63         KEY(2, 1, KEY_UP),
  64         KEY(3, 1, KEY_RIGHT),
  65         KEY(4, 1, KEY_ENTER),
  66 };
  67
  68 static const struct matrix_keymap_data palmte_keymap_data = {
  69         .keymap         = palmte_keymap,
  70         .keymap_size    = ARRAY_SIZE(palmte_keymap),
  71 };
  72
  73 static struct omap_kp_platform_data palmte_kp_data = {
  74         .rows   = 8,
  75         .cols   = 8,
  76         .keymap_data = &palmte_keymap_data,
  77         .rep    = true,
  78         .delay  = 12,
  79 };
  80
  81 static struct resource palmte_kp_resources[] = {
  82         [0]     = {
  83                 .start  = INT_KEYBOARD,
  84                 .end    = INT_KEYBOARD,
  85                 .flags  = IORESOURCE_IRQ,
  86         },
  87 };
  88
  89 static struct platform_device palmte_kp_device = {
  90         .name           = "omap-keypad",
  91         .id             = -1,
  92         .dev            = {
  93                 .platform_data  = &palmte_kp_data,
  94         },
  95         .num_resources  = ARRAY_SIZE(palmte_kp_resources),
  96         .resource       = palmte_kp_resources,
  97 };
  98
  99 static struct mtd_partition palmte_rom_partitions[] = {
 100         /* PalmOS "Small ROM", contains the bootloader and the debugger */
 101         {
 102                 .name           = "smallrom",
 103                 .offset         = 0,
 104                 .size           = 0xa000,
 105                 .mask_flags     = MTD_WRITEABLE,
 106         },
 107         /* PalmOS "Big ROM", a filesystem with all the OS code and data */
 108         {
 109                 .name           = "bigrom",
 110                 .offset         = SZ_128K,
 111                 /*
 112                  * 0x5f0000 bytes big in the multi-language ("EFIGS") version,
 113                  * 0x7b0000 bytes in the English-only ("enUS") version.
 114                  */
 115                 .size           = 0x7b0000,
 116                 .mask_flags     = MTD_WRITEABLE,
 117         },
 118 };
 119
 120 static struct physmap_flash_data palmte_rom_data = {
 121         .width          = 2,
 122         .set_vpp        = omap1_set_vpp,
 123         .parts          = palmte_rom_partitions,
 124         .nr_parts       = ARRAY_SIZE(palmte_rom_partitions),
 125 };
 126
 127 static struct resource palmte_rom_resource = {
 128         .start          = OMAP_CS0_PHYS,
 129         .end            = OMAP_CS0_PHYS + SZ_8M - 1,
 130         .flags          = IORESOURCE_MEM,
 131 };
 132
 133 static struct platform_device palmte_rom_device = {
 134         .name           = "physmap-flash",
 135         .id             = -1,
 136         .dev            = {
 137                 .platform_data  = &palmte_rom_data,
 138         },
 139         .num_resources  = 1,
 140         .resource       = &palmte_rom_resource,
 141 };
 142
 143 static struct platform_device palmte_lcd_device = {
 144         .name           = "lcd_palmte",
 145         .id             = -1,
 146 };
 147
 148 static struct omap_backlight_config palmte_backlight_config = {
 149         .default_intensity      = 0xa0,
 150 };
 151
 152 static struct platform_device palmte_backlight_device = {
 153         .name           = "omap-bl",
 154         .id             = -1,
 155         .dev            = {
 156                 .platform_data  = &palmte_backlight_config,
 157         },
 158 };
 159
 160 static struct platform_device *palmte_devices[] __initdata = {
 161         &palmte_rom_device,
 162         &palmte_kp_device,
 163         &palmte_lcd_device,
 164         &palmte_backlight_device,
 165 };
 166
 167 static struct omap_usb_config palmte_usb_config __initdata = {
 168         .register_dev   = 1,    /* Mini-B only receptacle */
 169         .hmc_mode       = 0,
 170         .pins[0]        = 2,
 171 };
 172
 173 static const struct omap_lcd_config palmte_lcd_config __initconst = {
 174         .ctrl_name      = "internal",
 175 };
 176
 177 static struct spi_board_info palmte_spi_info[] __initdata = {
 178         {
 179                 .modalias       = "tsc2102",
 180                 .bus_num        = 2,    /* uWire (officially) */
 181                 .chip_select    = 0,    /* As opposed to 3 */
 182                 .max_speed_hz   = 8000000,
 183         },
 184 };
 185
 186 #if IS_ENABLED(CONFIG_MMC_OMAP)
 187
 188 static struct omap_mmc_platform_data _palmte_mmc_config = {
 189         .nr_slots                       = 1,
 190         .slots[0]                       = {
 191                 .ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
 192                 .name                   = "mmcblk",
 193         },
 194 };
 195
 196 static struct omap_mmc_platform_data *palmte_mmc_config[OMAP15XX_NR_MMC] = {
 197         [0] = &_palmte_mmc_config,
 198 };
 199
 200 static void palmte_mmc_init(void)
 201 {
 202         omap1_init_mmc(palmte_mmc_config, OMAP15XX_NR_MMC);
 203 }
 204
 205 #else /* CONFIG_MMC_OMAP */
 206
 207 static void palmte_mmc_init(void)
 208 {
 209 }
 210
 211 #endif /* CONFIG_MMC_OMAP */
 212
 213 static struct gpiod_lookup_table palmte_irq_gpio_table = {
 214         .dev_id = NULL,
 215         .table = {
 216                 /* GPIO used for TSC2102 PINTDAV IRQ */
 217                 GPIO_LOOKUP("gpio-0-15", PALMTE_PINTDAV_GPIO, "tsc2102_irq",
 218                             GPIO_ACTIVE_HIGH),
 219                 /* GPIO used for USB or DC input detection */
 220                 GPIO_LOOKUP("gpio-0-15", PALMTE_USB_OR_DC_GPIO, "usb_dc_irq",
 221                             GPIO_ACTIVE_HIGH),
 222                 { }
 223         },
 224 };
 225
 226 static void __init omap_palmte_init(void)
 227 {
 228         struct gpio_desc *d;
 229
 230         /* mux pins for uarts */
 231         omap_cfg_reg(UART1_TX);
 232         omap_cfg_reg(UART1_RTS);
 233         omap_cfg_reg(UART2_TX);
 234         omap_cfg_reg(UART2_RTS);
 235         omap_cfg_reg(UART3_TX);
 236         omap_cfg_reg(UART3_RX);
 237
 238         platform_add_devices(palmte_devices, ARRAY_SIZE(palmte_devices));
 239
 240         gpiod_add_lookup_table(&palmte_irq_gpio_table);
 241         d = gpiod_get(NULL, "tsc2102_irq", GPIOD_IN);
 242         if (IS_ERR(d))
 243                 pr_err("Unable to get TSC2102 IRQ GPIO descriptor\n");
 244         else
 245                 palmte_spi_info[0].irq = gpiod_to_irq(d);
 246         spi_register_board_info(palmte_spi_info, ARRAY_SIZE(palmte_spi_info));
 247
 248         /* We are getting this just to set it up as input */
 249         d = gpiod_get(NULL, "usb_dc_irq", GPIOD_IN);
 250         if (IS_ERR(d))
 251                 pr_err("Unable to get USB/DC IRQ GPIO descriptor\n");
 252         else
 253                 gpiod_put(d);
 254
 255         omap_serial_init();
 256         omap1_usb_init(&palmte_usb_config);
 257         omap_register_i2c_bus(1, 100, NULL, 0);
 258
 259         omapfb_set_lcd_config(&palmte_lcd_config);
 260         palmte_mmc_init();
 261 }
 262
 263 MACHINE_START(OMAP_PALMTE, "OMAP310 based Palm Tungsten E")
 264         .atag_offset    = 0x100,
 265         .map_io         = omap1_map_io,
 266         .init_early     = omap1_init_early,
 267         .init_irq       = omap1_init_irq,
 268         .init_machine   = omap_palmte_init,
 269         .init_late      = omap1_init_late,
 270         .init_time      = omap1_timer_init,
 271         .restart        = omap1_restart,
 272 MACHINE_END