303 lines
7.1 KiB
C
303 lines
7.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* linux/arch/arm/mach-omap1/board-palmz71.c
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*
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* Modified from board-generic.c
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*
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* Support for the Palm Zire71 PDA.
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*
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* Original version : Laurent Gonzalez
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*
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* Modified for zire71 : Marek Vasut
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*/
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#include <linux/delay.h>
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#include <linux/gpio.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/notifier.h>
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#include <linux/clk.h>
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#include <linux/irq.h>
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#include <linux/input.h>
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#include <linux/interrupt.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/mtd/physmap.h>
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#include <linux/omapfb.h>
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#include <linux/spi/spi.h>
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#include <linux/spi/ads7846.h>
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#include <linux/platform_data/omap1_bl.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include "flash.h"
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#include <mach/mux.h>
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#include <linux/omap-dma.h>
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#include <mach/tc.h>
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#include <linux/platform_data/keypad-omap.h>
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#include <mach/hardware.h>
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#include <mach/usb.h>
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#include "common.h"
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#define PALMZ71_USBDETECT_GPIO 0
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#define PALMZ71_PENIRQ_GPIO 6
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#define PALMZ71_MMC_WP_GPIO 8
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#define PALMZ71_HDQ_GPIO 11
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#define PALMZ71_HOTSYNC_GPIO OMAP_MPUIO(1)
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#define PALMZ71_CABLE_GPIO OMAP_MPUIO(2)
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#define PALMZ71_SLIDER_GPIO OMAP_MPUIO(3)
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#define PALMZ71_MMC_IN_GPIO OMAP_MPUIO(4)
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static const unsigned int palmz71_keymap[] = {
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KEY(0, 0, KEY_F1),
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KEY(1, 0, KEY_F2),
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KEY(2, 0, KEY_F3),
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KEY(3, 0, KEY_F4),
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KEY(4, 0, KEY_POWER),
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KEY(0, 1, KEY_LEFT),
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KEY(1, 1, KEY_DOWN),
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KEY(2, 1, KEY_UP),
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KEY(3, 1, KEY_RIGHT),
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KEY(4, 1, KEY_ENTER),
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KEY(0, 2, KEY_CAMERA),
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};
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static const struct matrix_keymap_data palmz71_keymap_data = {
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.keymap = palmz71_keymap,
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.keymap_size = ARRAY_SIZE(palmz71_keymap),
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};
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static struct omap_kp_platform_data palmz71_kp_data = {
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.rows = 8,
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.cols = 8,
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.keymap_data = &palmz71_keymap_data,
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.rep = true,
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.delay = 80,
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};
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static struct resource palmz71_kp_resources[] = {
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[0] = {
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.start = INT_KEYBOARD,
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.end = INT_KEYBOARD,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device palmz71_kp_device = {
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.name = "omap-keypad",
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.id = -1,
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.dev = {
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.platform_data = &palmz71_kp_data,
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},
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.num_resources = ARRAY_SIZE(palmz71_kp_resources),
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.resource = palmz71_kp_resources,
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};
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static struct mtd_partition palmz71_rom_partitions[] = {
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/* PalmOS "Small ROM", contains the bootloader and the debugger */
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{
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.name = "smallrom",
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.offset = 0,
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.size = 0xa000,
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.mask_flags = MTD_WRITEABLE,
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},
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/* PalmOS "Big ROM", a filesystem with all the OS code and data */
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{
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.name = "bigrom",
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.offset = SZ_128K,
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/*
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* 0x5f0000 bytes big in the multi-language ("EFIGS") version,
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* 0x7b0000 bytes in the English-only ("enUS") version.
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*/
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.size = 0x7b0000,
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.mask_flags = MTD_WRITEABLE,
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},
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};
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static struct physmap_flash_data palmz71_rom_data = {
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.width = 2,
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.set_vpp = omap1_set_vpp,
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.parts = palmz71_rom_partitions,
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.nr_parts = ARRAY_SIZE(palmz71_rom_partitions),
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};
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static struct resource palmz71_rom_resource = {
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.start = OMAP_CS0_PHYS,
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.end = OMAP_CS0_PHYS + SZ_8M - 1,
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.flags = IORESOURCE_MEM,
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};
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static struct platform_device palmz71_rom_device = {
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.name = "physmap-flash",
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.id = -1,
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.dev = {
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.platform_data = &palmz71_rom_data,
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},
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.num_resources = 1,
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.resource = &palmz71_rom_resource,
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};
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static struct platform_device palmz71_lcd_device = {
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.name = "lcd_palmz71",
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.id = -1,
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};
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static struct platform_device palmz71_spi_device = {
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.name = "spi_palmz71",
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.id = -1,
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};
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static struct omap_backlight_config palmz71_backlight_config = {
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.default_intensity = 0xa0,
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};
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static struct platform_device palmz71_backlight_device = {
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.name = "omap-bl",
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.id = -1,
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.dev = {
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.platform_data = &palmz71_backlight_config,
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},
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};
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static struct platform_device *devices[] __initdata = {
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&palmz71_rom_device,
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&palmz71_kp_device,
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&palmz71_lcd_device,
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&palmz71_spi_device,
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&palmz71_backlight_device,
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};
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static int
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palmz71_get_pendown_state(void)
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{
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return !gpio_get_value(PALMZ71_PENIRQ_GPIO);
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}
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static const struct ads7846_platform_data palmz71_ts_info = {
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.model = 7846,
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.vref_delay_usecs = 100, /* internal, no capacitor */
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.x_plate_ohms = 419,
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.y_plate_ohms = 486,
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.get_pendown_state = palmz71_get_pendown_state,
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};
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static struct spi_board_info __initdata palmz71_boardinfo[] = { {
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/* MicroWire (bus 2) CS0 has an ads7846e */
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.modalias = "ads7846",
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.platform_data = &palmz71_ts_info,
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.max_speed_hz = 120000 /* max sample rate at 3V */
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* 26 /* command + data + overhead */,
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.bus_num = 2,
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.chip_select = 0,
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} };
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static struct omap_usb_config palmz71_usb_config __initdata = {
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.register_dev = 1, /* Mini-B only receptacle */
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.hmc_mode = 0,
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.pins[0] = 2,
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};
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static const struct omap_lcd_config palmz71_lcd_config __initconst = {
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.ctrl_name = "internal",
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};
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static irqreturn_t
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palmz71_powercable(int irq, void *dev_id)
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{
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if (gpio_get_value(PALMZ71_USBDETECT_GPIO)) {
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printk(KERN_INFO "PM: Power cable connected\n");
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irq_set_irq_type(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
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IRQ_TYPE_EDGE_FALLING);
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} else {
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printk(KERN_INFO "PM: Power cable disconnected\n");
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irq_set_irq_type(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
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IRQ_TYPE_EDGE_RISING);
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}
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return IRQ_HANDLED;
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}
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static void __init
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omap_mpu_wdt_mode(int mode)
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{
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if (mode)
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omap_writew(0x8000, OMAP_WDT_TIMER_MODE);
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else {
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omap_writew(0x00f5, OMAP_WDT_TIMER_MODE);
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omap_writew(0x00a0, OMAP_WDT_TIMER_MODE);
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}
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}
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static void __init
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palmz71_gpio_setup(int early)
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{
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if (early) {
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/* Only set GPIO1 so we have a working serial */
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gpio_direction_output(1, 1);
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} else {
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/* Set MMC/SD host WP pin as input */
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if (gpio_request(PALMZ71_MMC_WP_GPIO, "MMC WP") < 0) {
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printk(KERN_ERR "Could not reserve WP GPIO!\n");
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return;
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}
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gpio_direction_input(PALMZ71_MMC_WP_GPIO);
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/* Monitor the Power-cable-connected signal */
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if (gpio_request(PALMZ71_USBDETECT_GPIO, "USB detect") < 0) {
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printk(KERN_ERR
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"Could not reserve cable signal GPIO!\n");
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return;
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}
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gpio_direction_input(PALMZ71_USBDETECT_GPIO);
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if (request_irq(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
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palmz71_powercable, 0, "palmz71-cable", NULL))
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printk(KERN_ERR
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"IRQ request for power cable failed!\n");
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palmz71_powercable(gpio_to_irq(PALMZ71_USBDETECT_GPIO), NULL);
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}
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}
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static void __init
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omap_palmz71_init(void)
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{
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/* mux pins for uarts */
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omap_cfg_reg(UART1_TX);
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omap_cfg_reg(UART1_RTS);
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omap_cfg_reg(UART2_TX);
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omap_cfg_reg(UART2_RTS);
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omap_cfg_reg(UART3_TX);
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omap_cfg_reg(UART3_RX);
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palmz71_gpio_setup(1);
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omap_mpu_wdt_mode(0);
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platform_add_devices(devices, ARRAY_SIZE(devices));
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palmz71_boardinfo[0].irq = gpio_to_irq(PALMZ71_PENIRQ_GPIO);
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spi_register_board_info(palmz71_boardinfo,
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ARRAY_SIZE(palmz71_boardinfo));
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omap1_usb_init(&palmz71_usb_config);
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omap_serial_init();
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omap_register_i2c_bus(1, 100, NULL, 0);
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palmz71_gpio_setup(0);
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omapfb_set_lcd_config(&palmz71_lcd_config);
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}
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MACHINE_START(OMAP_PALMZ71, "OMAP310 based Palm Zire71")
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.atag_offset = 0x100,
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.map_io = omap15xx_map_io,
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.init_early = omap1_init_early,
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.init_irq = omap1_init_irq,
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.handle_irq = omap1_handle_irq,
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.init_machine = omap_palmz71_init,
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.init_late = omap1_init_late,
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.init_time = omap1_timer_init,
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.restart = omap1_restart,
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MACHINE_END
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