arm/mach-omap1/board-palmtt.c

0001 // SPDX-License-Identifier: GPL-2.0-only
0002 /*
0003  * linux/arch/arm/mach-omap1/board-palmtt.c
0004  *
0005  * Modified from board-palmtt2.c
0006  *
0007  * Modified and amended for Palm Tungsten|T
0008  * by Marek Vasut <marek.vasut@gmail.com>
0009  */
0010
0011 #include <linux/delay.h>
0012 #include <linux/gpio.h>
0013 #include <linux/kernel.h>
0014 #include <linux/init.h>
0015 #include <linux/platform_device.h>
0016 #include <linux/notifier.h>
0017 #include <linux/clk.h>
0018 #include <linux/input.h>
0019 #include <linux/interrupt.h>
0020 #include <linux/mtd/mtd.h>
0021 #include <linux/mtd/partitions.h>
0022 #include <linux/mtd/physmap.h>
0023 #include <linux/leds.h>
0024 #include <linux/omapfb.h>
0025 #include <linux/spi/spi.h>
0026 #include <linux/spi/ads7846.h>
0027 #include <linux/omap-dma.h>
0028 #include <linux/platform_data/omap1_bl.h>
0029 #include <linux/platform_data/leds-omap.h>
0030 #include <linux/platform_data/keypad-omap.h>
0031
0032 #include <asm/mach-types.h>
0033 #include <asm/mach/arch.h>
0034 #include <asm/mach/map.h>
0035
0036 #include "tc.h"
0037 #include "flash.h"
0038 #include "mux.h"
0039 #include "hardware.h"
0040 #include "usb.h"
0041 #include "common.h"
0042
0043 #define PALMTT_USBDETECT_GPIO   0
0044 #define PALMTT_CABLE_GPIO   1
0045 #define PALMTT_LED_GPIO     3
0046 #define PALMTT_PENIRQ_GPIO  6
0047 #define PALMTT_MMC_WP_GPIO  8
0048 #define PALMTT_HDQ_GPIO     11
0049
0050 static const unsigned int palmtt_keymap[] = {
0051     KEY(0, 0, KEY_ESC),
0052     KEY(1, 0, KEY_SPACE),
0053     KEY(2, 0, KEY_LEFTCTRL),
0054     KEY(3, 0, KEY_TAB),
0055     KEY(4, 0, KEY_ENTER),
0056     KEY(0, 1, KEY_LEFT),
0057     KEY(1, 1, KEY_DOWN),
0058     KEY(2, 1, KEY_UP),
0059     KEY(3, 1, KEY_RIGHT),
0060     KEY(0, 2, KEY_SLEEP),
0061     KEY(4, 2, KEY_Y),
0062 };
0063
0064 static struct mtd_partition palmtt_partitions[] = {
0065     {
0066         .name       = "write8k",
0067         .offset     = 0,
0068         .size       = SZ_8K,
0069         .mask_flags = 0,
0070     },
0071     {
0072         .name       = "PalmOS-BootLoader(ro)",
0073         .offset     = SZ_8K,
0074         .size       = 7 * SZ_8K,
0075         .mask_flags = MTD_WRITEABLE,
0076     },
0077     {
0078         .name       = "u-boot",
0079         .offset     = MTDPART_OFS_APPEND,
0080         .size       = 8 * SZ_8K,
0081         .mask_flags = 0,
0082     },
0083     {
0084         .name       = "PalmOS-FS(ro)",
0085         .offset     = MTDPART_OFS_APPEND,
0086         .size       = 7 * SZ_1M + 4 * SZ_64K - 16 * SZ_8K,
0087         .mask_flags = MTD_WRITEABLE,
0088     },
0089     {
0090         .name       = "u-boot(rez)",
0091         .offset     = MTDPART_OFS_APPEND,
0092         .size       = SZ_128K,
0093         .mask_flags = 0
0094     },
0095     {
0096         .name       = "empty",
0097         .offset     = MTDPART_OFS_APPEND,
0098         .size       = MTDPART_SIZ_FULL,
0099         .mask_flags = 0
0100     }
0101 };
0102
0103 static struct physmap_flash_data palmtt_flash_data = {
0104     .width      = 2,
0105     .set_vpp    = omap1_set_vpp,
0106     .parts      = palmtt_partitions,
0107     .nr_parts   = ARRAY_SIZE(palmtt_partitions),
0108 };
0109
0110 static struct resource palmtt_flash_resource = {
0111     .start      = OMAP_CS0_PHYS,
0112     .end        = OMAP_CS0_PHYS + SZ_8M - 1,
0113     .flags      = IORESOURCE_MEM,
0114 };
0115
0116 static struct platform_device palmtt_flash_device = {
0117     .name       = "physmap-flash",
0118     .id     = 0,
0119     .dev        = {
0120         .platform_data  = &palmtt_flash_data,
0121     },
0122     .num_resources  = 1,
0123     .resource   = &palmtt_flash_resource,
0124 };
0125
0126 static struct resource palmtt_kp_resources[] = {
0127     [0] = {
0128         .start  = INT_KEYBOARD,
0129         .end    = INT_KEYBOARD,
0130         .flags  = IORESOURCE_IRQ,
0131     },
0132 };
0133
0134 static const struct matrix_keymap_data palmtt_keymap_data = {
0135     .keymap     = palmtt_keymap,
0136     .keymap_size    = ARRAY_SIZE(palmtt_keymap),
0137 };
0138
0139 static struct omap_kp_platform_data palmtt_kp_data = {
0140     .rows   = 6,
0141     .cols   = 3,
0142     .keymap_data = &palmtt_keymap_data,
0143 };
0144
0145 static struct platform_device palmtt_kp_device = {
0146     .name       = "omap-keypad",
0147     .id     = -1,
0148     .dev        = {
0149         .platform_data = &palmtt_kp_data,
0150     },
0151     .num_resources  = ARRAY_SIZE(palmtt_kp_resources),
0152     .resource   = palmtt_kp_resources,
0153 };
0154
0155 static struct platform_device palmtt_lcd_device = {
0156     .name       = "lcd_palmtt",
0157     .id     = -1,
0158 };
0159
0160 static struct platform_device palmtt_spi_device = {
0161     .name       = "spi_palmtt",
0162     .id     = -1,
0163 };
0164
0165 static struct omap_backlight_config palmtt_backlight_config = {
0166     .default_intensity  = 0xa0,
0167 };
0168
0169 static struct platform_device palmtt_backlight_device = {
0170     .name       = "omap-bl",
0171     .id     = -1,
0172     .dev        = {
0173         .platform_data= &palmtt_backlight_config,
0174     },
0175 };
0176
0177 static struct omap_led_config palmtt_led_config[] = {
0178     {
0179         .cdev   = {
0180             .name   = "palmtt:led0",
0181         },
0182         .gpio   = PALMTT_LED_GPIO,
0183     },
0184 };
0185
0186 static struct omap_led_platform_data palmtt_led_data = {
0187     .nr_leds    = ARRAY_SIZE(palmtt_led_config),
0188     .leds       = palmtt_led_config,
0189 };
0190
0191 static struct platform_device palmtt_led_device = {
0192     .name   = "omap-led",
0193     .id = -1,
0194     .dev    = {
0195         .platform_data  = &palmtt_led_data,
0196     },
0197 };
0198
0199 static struct platform_device *palmtt_devices[] __initdata = {
0200     &palmtt_flash_device,
0201     &palmtt_kp_device,
0202     &palmtt_lcd_device,
0203     &palmtt_spi_device,
0204     &palmtt_backlight_device,
0205     &palmtt_led_device,
0206 };
0207
0208 static int palmtt_get_pendown_state(void)
0209 {
0210     return !gpio_get_value(6);
0211 }
0212
0213 static const struct ads7846_platform_data palmtt_ts_info = {
0214     .model          = 7846,
0215     .vref_delay_usecs   = 100,  /* internal, no capacitor */
0216     .x_plate_ohms       = 419,
0217     .y_plate_ohms       = 486,
0218     .get_pendown_state  = palmtt_get_pendown_state,
0219 };
0220
0221 static struct spi_board_info __initdata palmtt_boardinfo[] = {
0222     {
0223         /* MicroWire (bus 2) CS0 has an ads7846e */
0224         .modalias   = "ads7846",
0225         .platform_data  = &palmtt_ts_info,
0226         .max_speed_hz   = 120000    /* max sample rate at 3V */
0227                     * 26    /* command + data + overhead */,
0228         .bus_num    = 2,
0229         .chip_select    = 0,
0230     }
0231 };
0232
0233 static struct omap_usb_config palmtt_usb_config __initdata = {
0234     .register_dev   = 1,
0235     .hmc_mode   = 0,
0236     .pins[0]    = 2,
0237 };
0238
0239 static const struct omap_lcd_config palmtt_lcd_config __initconst = {
0240     .ctrl_name  = "internal",
0241 };
0242
0243 static void __init omap_mpu_wdt_mode(int mode) {
0244     if (mode)
0245         omap_writew(0x8000, OMAP_WDT_TIMER_MODE);
0246     else {
0247         omap_writew(0x00f5, OMAP_WDT_TIMER_MODE);
0248         omap_writew(0x00a0, OMAP_WDT_TIMER_MODE);
0249     }
0250 }
0251
0252 static void __init omap_palmtt_init(void)
0253 {
0254     /* mux pins for uarts */
0255     omap_cfg_reg(UART1_TX);
0256     omap_cfg_reg(UART1_RTS);
0257     omap_cfg_reg(UART2_TX);
0258     omap_cfg_reg(UART2_RTS);
0259     omap_cfg_reg(UART3_TX);
0260     omap_cfg_reg(UART3_RX);
0261
0262     omap_mpu_wdt_mode(0);
0263
0264     platform_add_devices(palmtt_devices, ARRAY_SIZE(palmtt_devices));
0265
0266     palmtt_boardinfo[0].irq = gpio_to_irq(6);
0267     spi_register_board_info(palmtt_boardinfo,ARRAY_SIZE(palmtt_boardinfo));
0268     omap_serial_init();
0269     omap1_usb_init(&palmtt_usb_config);
0270     omap_register_i2c_bus(1, 100, NULL, 0);
0271
0272     omapfb_set_lcd_config(&palmtt_lcd_config);
0273 }
0274
0275 MACHINE_START(OMAP_PALMTT, "OMAP1510 based Palm Tungsten|T")
0276     .atag_offset    = 0x100,
0277     .map_io     = omap15xx_map_io,
0278     .init_early     = omap1_init_early,
0279     .init_irq   = omap1_init_irq,
0280     .handle_irq = omap1_handle_irq,
0281     .init_machine   = omap_palmtt_init,
0282     .init_late  = omap1_init_late,
0283     .init_time  = omap1_timer_init,
0284     .restart    = omap1_restart,
0285 MACHINE_END