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289 lines
7.4 KiB
289 lines
7.4 KiB
/*
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* linux/arch/arm/mach-omap2/board-apollon.c
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*
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* Copyright (C) 2005,2006 Samsung Electronics
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* Author: Kyungmin Park <kyungmin.park@samsung.com>
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*
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* Modified from mach-omap/omap2/board-h4.c
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*
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* Code for apollon OMAP2 board. Should work on many OMAP2 systems where
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* the bootloader passes the board-specific data to the kernel.
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* Do not put any board specific code to this file; create a new machine
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* type if you need custom low-level initializations.
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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 as
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* 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/platform_device.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/onenand.h>
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#include <linux/irq.h>
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#include <linux/interrupt.h>
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#include <linux/delay.h>
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#include <asm/hardware.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/flash.h>
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#include <asm/arch/gpio.h>
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#include <asm/arch/mux.h>
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#include <asm/arch/usb.h>
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#include <asm/arch/board.h>
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#include <asm/arch/common.h>
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#include "prcm-regs.h"
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/* LED & Switch macros */
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#define LED0_GPIO13 13
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#define LED1_GPIO14 14
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#define LED2_GPIO15 15
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#define SW_ENTER_GPIO16 16
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#define SW_UP_GPIO17 17
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#define SW_DOWN_GPIO58 58
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static struct mtd_partition apollon_partitions[] = {
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{
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.name = "X-Loader + U-Boot",
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.offset = 0,
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.size = SZ_128K,
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.mask_flags = MTD_WRITEABLE,
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},
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{
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.name = "params",
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.offset = MTDPART_OFS_APPEND,
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.size = SZ_128K,
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},
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{
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.name = "kernel",
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.offset = MTDPART_OFS_APPEND,
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.size = SZ_2M,
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},
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{
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.name = "rootfs",
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.offset = MTDPART_OFS_APPEND,
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.size = SZ_16M,
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},
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{
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.name = "filesystem00",
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.offset = MTDPART_OFS_APPEND,
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.size = SZ_32M,
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},
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{
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.name = "filesystem01",
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.offset = MTDPART_OFS_APPEND,
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.size = MTDPART_SIZ_FULL,
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},
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};
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static struct flash_platform_data apollon_flash_data = {
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.parts = apollon_partitions,
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.nr_parts = ARRAY_SIZE(apollon_partitions),
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};
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static struct resource apollon_flash_resource = {
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.start = APOLLON_CS0_BASE,
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.end = APOLLON_CS0_BASE + SZ_128K,
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.flags = IORESOURCE_MEM,
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};
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static struct platform_device apollon_onenand_device = {
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.name = "onenand",
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.id = -1,
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.dev = {
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.platform_data = &apollon_flash_data,
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},
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.num_resources = ARRAY_SIZE(&apollon_flash_resource),
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.resource = &apollon_flash_resource,
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};
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static struct resource apollon_smc91x_resources[] = {
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[0] = {
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.start = APOLLON_ETHR_START, /* Physical */
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.end = APOLLON_ETHR_START + 0xf,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ),
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.end = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ),
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device apollon_smc91x_device = {
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.name = "smc91x",
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.id = -1,
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.num_resources = ARRAY_SIZE(apollon_smc91x_resources),
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.resource = apollon_smc91x_resources,
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};
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static struct platform_device apollon_lcd_device = {
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.name = "apollon_lcd",
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.id = -1,
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};
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static struct platform_device *apollon_devices[] __initdata = {
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&apollon_onenand_device,
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&apollon_smc91x_device,
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&apollon_lcd_device,
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};
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static inline void __init apollon_init_smc91x(void)
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{
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/* Make sure CS1 timings are correct */
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GPMC_CONFIG1_1 = 0x00011203;
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GPMC_CONFIG2_1 = 0x001f1f01;
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GPMC_CONFIG3_1 = 0x00080803;
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GPMC_CONFIG4_1 = 0x1c091c09;
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GPMC_CONFIG5_1 = 0x041f1f1f;
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GPMC_CONFIG6_1 = 0x000004c4;
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GPMC_CONFIG7_1 = 0x00000f40 | (APOLLON_CS1_BASE >> 24);
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udelay(100);
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omap_cfg_reg(W4__24XX_GPIO74);
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if (omap_request_gpio(APOLLON_ETHR_GPIO_IRQ) < 0) {
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printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
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APOLLON_ETHR_GPIO_IRQ);
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return;
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}
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omap_set_gpio_direction(APOLLON_ETHR_GPIO_IRQ, 1);
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}
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static void __init omap_apollon_init_irq(void)
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{
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omap2_init_common_hw();
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omap_init_irq();
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omap_gpio_init();
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apollon_init_smc91x();
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}
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static struct omap_uart_config apollon_uart_config __initdata = {
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.enabled_uarts = (1 << 0) | (0 << 1) | (0 << 2),
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};
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static struct omap_mmc_config apollon_mmc_config __initdata = {
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.mmc [0] = {
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.enabled = 1,
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.wire4 = 1,
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.wp_pin = -1,
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.power_pin = -1,
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.switch_pin = -1,
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},
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};
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static struct omap_lcd_config apollon_lcd_config __initdata = {
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.ctrl_name = "internal",
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};
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static struct omap_board_config_kernel apollon_config[] = {
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{ OMAP_TAG_UART, &apollon_uart_config },
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{ OMAP_TAG_MMC, &apollon_mmc_config },
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{ OMAP_TAG_LCD, &apollon_lcd_config },
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};
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static void __init apollon_led_init(void)
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{
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/* LED0 - AA10 */
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omap_cfg_reg(AA10_242X_GPIO13);
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omap_request_gpio(LED0_GPIO13);
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omap_set_gpio_direction(LED0_GPIO13, 0);
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omap_set_gpio_dataout(LED0_GPIO13, 0);
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/* LED1 - AA6 */
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omap_cfg_reg(AA6_242X_GPIO14);
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omap_request_gpio(LED1_GPIO14);
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omap_set_gpio_direction(LED1_GPIO14, 0);
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omap_set_gpio_dataout(LED1_GPIO14, 0);
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/* LED2 - AA4 */
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omap_cfg_reg(AA4_242X_GPIO15);
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omap_request_gpio(LED2_GPIO15);
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omap_set_gpio_direction(LED2_GPIO15, 0);
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omap_set_gpio_dataout(LED2_GPIO15, 0);
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}
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static irqreturn_t apollon_sw_interrupt(int irq, void *ignored)
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{
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static unsigned int led0, led1, led2;
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if (irq == OMAP_GPIO_IRQ(SW_ENTER_GPIO16))
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omap_set_gpio_dataout(LED0_GPIO13, led0 ^= 1);
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else if (irq == OMAP_GPIO_IRQ(SW_UP_GPIO17))
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omap_set_gpio_dataout(LED1_GPIO14, led1 ^= 1);
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else if (irq == OMAP_GPIO_IRQ(SW_DOWN_GPIO58))
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omap_set_gpio_dataout(LED2_GPIO15, led2 ^= 1);
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return IRQ_HANDLED;
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}
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static void __init apollon_sw_init(void)
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{
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/* Enter SW - Y11 */
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omap_cfg_reg(Y11_242X_GPIO16);
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omap_request_gpio(SW_ENTER_GPIO16);
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omap_set_gpio_direction(SW_ENTER_GPIO16, 1);
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/* Up SW - AA12 */
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omap_cfg_reg(AA12_242X_GPIO17);
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omap_request_gpio(SW_UP_GPIO17);
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omap_set_gpio_direction(SW_UP_GPIO17, 1);
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/* Down SW - AA8 */
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omap_cfg_reg(AA8_242X_GPIO58);
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omap_request_gpio(SW_DOWN_GPIO58);
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omap_set_gpio_direction(SW_DOWN_GPIO58, 1);
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set_irq_type(OMAP_GPIO_IRQ(SW_ENTER_GPIO16), IRQT_RISING);
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if (request_irq(OMAP_GPIO_IRQ(SW_ENTER_GPIO16), &apollon_sw_interrupt,
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IRQF_SHARED, "enter sw",
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&apollon_sw_interrupt))
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return;
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set_irq_type(OMAP_GPIO_IRQ(SW_UP_GPIO17), IRQT_RISING);
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if (request_irq(OMAP_GPIO_IRQ(SW_UP_GPIO17), &apollon_sw_interrupt,
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IRQF_SHARED, "up sw",
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&apollon_sw_interrupt))
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return;
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set_irq_type(OMAP_GPIO_IRQ(SW_DOWN_GPIO58), IRQT_RISING);
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if (request_irq(OMAP_GPIO_IRQ(SW_DOWN_GPIO58), &apollon_sw_interrupt,
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IRQF_SHARED, "down sw",
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&apollon_sw_interrupt))
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return;
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}
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static void __init omap_apollon_init(void)
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{
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apollon_led_init();
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apollon_sw_init();
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/* REVISIT: where's the correct place */
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omap_cfg_reg(W19_24XX_SYS_NIRQ);
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/* Use Interal loop-back in MMC/SDIO Module Input Clock selection */
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CONTROL_DEVCONF |= (1 << 24);
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/*
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* Make sure the serial ports are muxed on at this point.
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* You have to mux them off in device drivers later on
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* if not needed.
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*/
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platform_add_devices(apollon_devices, ARRAY_SIZE(apollon_devices));
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omap_board_config = apollon_config;
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omap_board_config_size = ARRAY_SIZE(apollon_config);
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omap_serial_init();
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}
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static void __init omap_apollon_map_io(void)
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{
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omap2_map_common_io();
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}
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MACHINE_START(OMAP_APOLLON, "OMAP24xx Apollon")
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/* Maintainer: Kyungmin Park <kyungmin.park@samsung.com> */
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.phys_io = 0x48000000,
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.io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
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.boot_params = 0x80000100,
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.map_io = omap_apollon_map_io,
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.init_irq = omap_apollon_init_irq,
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.init_machine = omap_apollon_init,
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.timer = &omap_timer,
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MACHINE_END
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