arch/arm/mach-omap2/board-apollon.c - kernel/prism - Git at Google

 /*
  * 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 onenand_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-flash",
 	.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 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_LCD,		&apollon_lcd_config },
 };

 static void __init omap_apollon_init_irq(void)
 {
 	omap_board_config = apollon_config;
 	omap_board_config_size = ARRAY_SIZE(apollon_config);
 	omap2_init_common_hw(NULL, NULL);
 	omap_init_irq();
 	omap_gpio_init();
 	apollon_init_smc91x();
 }

 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_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
	/*
	* 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 onenand_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-flash",
	.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 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_LCD, &apollon_lcd_config },
	};

	static void __init omap_apollon_init_irq(void)
	{
	omap_board_config = apollon_config;
	omap_board_config_size = ARRAY_SIZE(apollon_config);
	omap2_init_common_hw(NULL, NULL);
	omap_init_irq();
	omap_gpio_init();
	apollon_init_smc91x();
	}

	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_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