/* * linux/arch/arm/mach-omap2/board-apollon.c * * Copyright (C) 2005,2006 Samsung Electronics * Author: Kyungmin Park <kyungmin.park@samsung.com> * * Modified from mach-omap/omap2/board-h4.c * * Code for apollon OMAP2 board. Should work on many OMAP2 systems where * the bootloader passes the board-specific data to the kernel. * Do not put any board specific code to this file; create a new machine * type if you need custom low-level initializations. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include <linux/kernel.h> #include <linux/init.h> #include <linux/platform_device.h> #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> #include <linux/mtd/onenand.h> #include <linux/delay.h> #include <linux/leds.h> #include <linux/err.h> #include <linux/clk.h> #include <mach/hardware.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> #include <asm/mach/flash.h> #include <mach/gpio.h> #include <mach/led.h> #include <mach/mux.h> #include <mach/usb.h> #include <mach/board.h> #include <mach/common.h> #include <mach/gpmc.h> #include <mach/control.h> /* LED & Switch macros */ #define LED0_GPIO13 13 #define LED1_GPIO14 14 #define LED2_GPIO15 15 #define SW_ENTER_GPIO16 16 #define SW_UP_GPIO17 17 #define SW_DOWN_GPIO58 58 #define APOLLON_FLASH_CS 0 #define APOLLON_ETH_CS 1 #define APOLLON_ETHR_GPIO_IRQ 74 static struct mtd_partition apollon_partitions[] = { { .name = "X-Loader + U-Boot", .offset = 0, .size = SZ_128K, .mask_flags = MTD_WRITEABLE, }, { .name = "params", .offset = MTDPART_OFS_APPEND, .size = SZ_128K, }, { .name = "kernel", .offset = MTDPART_OFS_APPEND, .size = SZ_2M, }, { .name = "rootfs", .offset = MTDPART_OFS_APPEND, .size = SZ_16M, }, { .name = "filesystem00", .offset = MTDPART_OFS_APPEND, .size = SZ_32M, }, { .name = "filesystem01", .offset = MTDPART_OFS_APPEND, .size = MTDPART_SIZ_FULL, }, }; static struct flash_platform_data apollon_flash_data = { .parts = apollon_partitions, .nr_parts = ARRAY_SIZE(apollon_partitions), }; static struct resource apollon_flash_resource[] = { [0] = { .flags = IORESOURCE_MEM, }, }; static struct platform_device apollon_onenand_device = { .name = "onenand", .id = -1, .dev = { .platform_data = &apollon_flash_data, }, .num_resources = ARRAY_SIZE(apollon_flash_resource), .resource = apollon_flash_resource, }; static void __init apollon_flash_init(void) { unsigned long base; if (gpmc_cs_request(APOLLON_FLASH_CS, SZ_128K, &base) < 0) { printk(KERN_ERR "Cannot request OneNAND GPMC CS\n"); return; } apollon_flash_resource[0].start = base; apollon_flash_resource[0].end = base + SZ_128K - 1; } static struct resource apollon_smc91x_resources[] = { [0] = { .flags = IORESOURCE_MEM, }, [1] = { .start = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ), .end = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ), .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE, }, }; static struct platform_device apollon_smc91x_device = { .name = "smc91x", .id = -1, .num_resources = ARRAY_SIZE(apollon_smc91x_resources), .resource = apollon_smc91x_resources, }; static struct platform_device apollon_lcd_device = { .name = "apollon_lcd", .id = -1, }; static struct omap_led_config apollon_led_config[] = { { .cdev = { .name = "apollon:led0", }, .gpio = LED0_GPIO13, }, { .cdev = { .name = "apollon:led1", }, .gpio = LED1_GPIO14, }, { .cdev = { .name = "apollon:led2", }, .gpio = LED2_GPIO15, }, }; static struct omap_led_platform_data apollon_led_data = { .nr_leds = ARRAY_SIZE(apollon_led_config), .leds = apollon_led_config, }; static struct platform_device apollon_led_device = { .name = "omap-led", .id = -1, .dev = { .platform_data = &apollon_led_data, }, }; static struct platform_device *apollon_devices[] __initdata = { &apollon_onenand_device, &apollon_smc91x_device, &apollon_lcd_device, &apollon_led_device, }; static inline void __init apollon_init_smc91x(void) { unsigned long base; unsigned int rate; struct clk *gpmc_fck; int eth_cs; gpmc_fck = clk_get(NULL, "gpmc_fck"); /* Always on ENABLE_ON_INIT */ if (IS_ERR(gpmc_fck)) { WARN_ON(1); return; } clk_enable(gpmc_fck); rate = clk_get_rate(gpmc_fck); eth_cs = APOLLON_ETH_CS; /* Make sure CS1 timings are correct */ gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1, 0x00011200); if (rate >= 160000000) { gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01); gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803); gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a); gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F); gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4); } else if (rate >= 130000000) { gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00); gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802); gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09); gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F); gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4); } else {/* rate = 100000000 */ gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00); gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802); gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09); gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F); gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2); } if (gpmc_cs_request(APOLLON_ETH_CS, SZ_16M, &base) < 0) { printk(KERN_ERR "Failed to request GPMC CS for smc91x\n"); goto out; } apollon_smc91x_resources[0].start = base + 0x300; apollon_smc91x_resources[0].end = base + 0x30f; udelay(100); omap_cfg_reg(W4__24XX_GPIO74); if (gpio_request(APOLLON_ETHR_GPIO_IRQ, "SMC91x irq") < 0) { printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n", APOLLON_ETHR_GPIO_IRQ); gpmc_cs_free(APOLLON_ETH_CS); goto out; } gpio_direction_input(APOLLON_ETHR_GPIO_IRQ); out: clk_disable(gpmc_fck); clk_put(gpmc_fck); } static void __init omap_apollon_init_irq(void) { omap2_init_common_hw(NULL); omap_init_irq(); omap_gpio_init(); apollon_init_smc91x(); } static struct omap_uart_config apollon_uart_config __initdata = { .enabled_uarts = (1 << 0) | (0 << 1) | (0 << 2), }; static struct omap_usb_config apollon_usb_config __initdata = { .register_dev = 1, .hmc_mode = 0x14, /* 0:dev 1:host1 2:disable */ .pins[0] = 6, }; static struct omap_lcd_config apollon_lcd_config __initdata = { .ctrl_name = "internal", }; static struct omap_board_config_kernel apollon_config[] = { { OMAP_TAG_UART, &apollon_uart_config }, { OMAP_TAG_LCD, &apollon_lcd_config }, }; static void __init apollon_led_init(void) { /* LED0 - AA10 */ omap_cfg_reg(AA10_242X_GPIO13); gpio_request(LED0_GPIO13, "LED0"); gpio_direction_output(LED0_GPIO13, 0); /* LED1 - AA6 */ omap_cfg_reg(AA6_242X_GPIO14); gpio_request(LED1_GPIO14, "LED1"); gpio_direction_output(LED1_GPIO14, 0); /* LED2 - AA4 */ omap_cfg_reg(AA4_242X_GPIO15); gpio_request(LED2_GPIO15, "LED2"); gpio_direction_output(LED2_GPIO15, 0); } static void __init apollon_usb_init(void) { /* USB device */ /* DEVICE_SUSPEND */ omap_cfg_reg(P21_242X_GPIO12); gpio_request(12, "USB suspend"); gpio_direction_output(12, 0); omap_usb_init(&apollon_usb_config); } static void __init omap_apollon_init(void) { u32 v; apollon_led_init(); apollon_flash_init(); apollon_usb_init(); /* REVISIT: where's the correct place */ omap_cfg_reg(W19_24XX_SYS_NIRQ); /* Use Interal loop-back in MMC/SDIO Module Input Clock selection */ v = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0); v |= (1 << 24); omap_ctrl_writel(v, OMAP2_CONTROL_DEVCONF0); /* * Make sure the serial ports are muxed on at this point. * You have to mux them off in device drivers later on * if not needed. */ platform_add_devices(apollon_devices, ARRAY_SIZE(apollon_devices)); omap_board_config = apollon_config; omap_board_config_size = ARRAY_SIZE(apollon_config); omap_serial_init(); } static void __init omap_apollon_map_io(void) { omap2_set_globals_242x(); omap2_map_common_io(); } MACHINE_START(OMAP_APOLLON, "OMAP24xx Apollon") /* Maintainer: Kyungmin Park <kyungmin.park@samsung.com> */ .phys_io = 0x48000000, .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc, .boot_params = 0x80000100, .map_io = omap_apollon_map_io, .init_irq = omap_apollon_init_irq, .init_machine = omap_apollon_init, .timer = &omap_timer, MACHINE_END