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302 lines
7.1 KiB
302 lines
7.1 KiB
// 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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