246 lines
5.6 KiB
C
246 lines
5.6 KiB
C
/*
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* linux/arch/mips/jz4740/board-sakc.c
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*
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* SAKC setup routines, based on QI_LB60
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*
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* Copyright (c) 2009 Qi Hardware inc.,
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* Author: Xiangfu Liu <xiangfu@qi-hardware.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 or later
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* as published by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/gpio.h>
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#include <asm/mach-jz4740/board-sakc.h>
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#include <asm/mach-jz4740/platform.h>
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#include <linux/input.h>
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//#include <linux/gpio_keys.h>
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#include <linux/mtd/jz4740_nand.h>
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#include <linux/jz4740_fb.h>
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//#include <linux/input/matrix_keypad.h>
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#include <linux/mtd/jz4740_nand.h>
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#include <linux/spi/spi.h>
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#include <linux/spi/spi_gpio.h>
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//#include <linux/power_supply.h>
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//#include <linux/power/jz4740-battery.h>
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//#include <linux/power/gpio-charger.h>
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#include <linux/mmc/jz4740_mmc.h>
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/* NAND */
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static struct nand_ecclayout sakc_ecclayout_1gb = {
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.eccbytes = 36,
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.eccpos = {
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6, 7, 8, 9, 10, 11, 12, 13,
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14, 15, 16, 17, 18, 19, 20, 21,
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22, 23, 24, 25, 26, 27, 28, 29,
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30, 31, 32, 33, 34, 35, 36, 37,
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38, 39, 40, 41},
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.oobfree = {
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{.offset = 2,
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.length = 4},
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{.offset = 42,
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.length = 22}}
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};
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static struct mtd_partition sakc_partitions_1gb[] = {
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{ .name = "NAND BOOT partition",
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.offset = 0 * 0x100000,
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.size = 4 * 0x100000,
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},
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{ .name = "NAND KERNEL partition",
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.offset = 4 * 0x100000,
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.size = 4 * 0x100000,
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},
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{ .name = "NAND ROOTFS partition",
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.offset = 8 * 0x100000,
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.size = (504 + 512) * 0x100000,
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},
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};
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static struct nand_ecclayout sakc_ecclayout_2gb = {
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.eccbytes = 72,
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.eccpos = {
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12, 13, 14, 15, 16, 17, 18, 19,
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20, 21, 22, 23, 24, 25, 26, 27,
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28, 29, 30, 31, 32, 33, 34, 35,
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36, 37, 38, 39, 40, 41, 42, 43,
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44, 45, 46, 47, 48, 49, 50, 51,
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52, 53, 54, 55, 56, 57, 58, 59,
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60, 61, 62, 63, 64, 65, 66, 67,
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68, 69, 70, 71, 72, 73, 74, 75,
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76, 77, 78, 79, 80, 81, 82, 83},
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.oobfree = {
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{.offset = 2,
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.length = 10},
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{.offset = 84,
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.length = 44}}
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};
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static struct mtd_partition sakc_partitions_2gb[] = {
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{ .name = "NAND BOOT partition",
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.offset = 0 * 0x100000,
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.size = 4 * 0x100000,
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},
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{ .name = "NAND KERNEL partition",
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.offset = 4 * 0x100000,
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.size = 4 * 0x100000,
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},
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{ .name = "NAND ROOTFS partition",
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.offset = 8 * 0x100000,
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.size = (504 + 512 + 1024) * 0x100000,
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},
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};
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static void sakc_nand_ident(struct platform_device *pdev,
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struct nand_chip *chip,
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struct mtd_partition **partitions,
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int *num_partitions)
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{
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if (chip->page_shift == 12) {
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chip->ecc.layout = &sakc_ecclayout_2gb;
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*partitions = sakc_partitions_2gb;
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*num_partitions = ARRAY_SIZE(sakc_partitions_2gb);
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} else {
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chip->ecc.layout = &sakc_ecclayout_1gb;
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*partitions = sakc_partitions_1gb;
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*num_partitions = ARRAY_SIZE(sakc_partitions_1gb);
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}
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}
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static struct jz_nand_platform_data sakc_nand_pdata = {
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.ident_callback = sakc_nand_ident,
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.busy_gpio = 94,
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};
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/* Display */
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static struct fb_videomode sakc_video_modes[] = {
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{
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.name = "320x240",
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.xres = 320,
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.yres = 240,
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.pixclock = 700000,
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.left_margin = 140,
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.right_margin = 273,
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.upper_margin = 20,
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.lower_margin = 2,
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.hsync_len = 1,
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.vsync_len = 1,
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.sync = 0,
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.vmode = FB_VMODE_NONINTERLACED,
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},
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};
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static struct jz4740_fb_platform_data sakc_fb_pdata = {
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.width = 60,
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.height = 45,
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.num_modes = ARRAY_SIZE(sakc_video_modes),
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.modes = sakc_video_modes,
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.bpp = 24,
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.lcd_type = JZ_LCD_TYPE_8BIT_SERIAL,
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};
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struct spi_gpio_platform_data spigpio_platform_data = {
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.sck = JZ_GPIO_PORTC(23),
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.mosi = JZ_GPIO_PORTC(22),
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.miso = JZ_GPIO_PORTC(22),
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.num_chipselect = 1,
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};
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static struct platform_device spigpio_device = {
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.name = "spi_gpio",
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.id = 1,
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.dev = {
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.platform_data = &spigpio_platform_data,
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},
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};
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static struct spi_board_info sakc_spi_board_info[] = {
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{
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.modalias = "gpm940b0",
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.controller_data = (void*)JZ_GPIO_PORTC(21),
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.chip_select = 0,
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.bus_num = 1,
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.max_speed_hz = 30 * 1000,
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},
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};
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/* MMC */
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static struct jz4740_mmc_platform_data sakc_mmc_pdata = {
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.gpio_card_detect = JZ_GPIO_PORTC(27),
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.gpio_read_only = -1,
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.gpio_power = -1,
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.power_active_low = 1,
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.data_1bit = 1,
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};
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static struct platform_device *jz_platform_devices[] __initdata = {
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&jz4740_usb_ohci_device,
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&jz4740_usb_gdt_device,
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&jz4740_mmc_device,
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&jz4740_nand_device,
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&spigpio_device,
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&jz4740_framebuffer_device,
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&jz4740_i2s_device,
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&jz4740_codec_device,
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&jz4740_rtc_device,
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&jz4740_adc_device,
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};
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static void __init board_gpio_setup(void)
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{
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/* We only need to enable/disable pullup here for pins used in generic
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* drivers. Everything else is done by the drivers themselfs. */
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jz_gpio_disable_pullup(GPIO_SD_CD_N);
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}
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static int __init sakc_init_platform_devices(void)
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{
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jz4740_framebuffer_device.dev.platform_data = &sakc_fb_pdata;
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jz4740_nand_device.dev.platform_data = &sakc_nand_pdata;
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jz4740_mmc_device.dev.platform_data = &sakc_mmc_pdata;
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spi_register_board_info(sakc_spi_board_info,
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ARRAY_SIZE(sakc_spi_board_info));
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return platform_add_devices(jz_platform_devices,
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ARRAY_SIZE(jz_platform_devices));
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}
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extern int jz_gpiolib_init(void);
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extern int jz_init_clocks(unsigned long extal);
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static __init int board_sakc(char *str)
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{
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sakc_mmc_pdata.card_detect_active_low = 1;
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return 1;
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}
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__setup("sakc", board_sakc);
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static int __init sakc_board_setup(void)
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{
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printk("Qi Hardware JZ4725 SAKC setup\n");
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if (jz_gpiolib_init())
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panic("Failed to initalize jz gpio\n");
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jz_init_clocks(12000000);
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board_gpio_setup();
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if (sakc_init_platform_devices())
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panic("Failed to initalize platform devices\n");
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return 0;
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}
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arch_initcall(sakc_board_setup);
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