arch/arm/mach-omap2/board-2430sdp.c - linux - Git at Google

 /*
  * linux/arch/arm/mach-omap2/board-2430sdp.c
  *
  * Copyright (C) 2006 Texas Instruments
  *
  * Modified from mach-omap2/board-generic.c
  *
  * Initial Code : Based on a patch from Komal Shah and Richard Woodruff
  * Updated the Code for 2430 SDP : Syed Mohammed Khasim
  *
  * 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/delay.h>
 #include <linux/i2c/twl4030.h>
 #include <linux/err.h>
 #include <linux/clk.h>
 #include <linux/io.h>

 #include <mach/hardware.h>
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
 #include <asm/mach/flash.h>

 #include <mach/gpio.h>
 #include <mach/mux.h>
 #include <mach/board.h>
 #include <mach/common.h>
 #include <mach/gpmc.h>

 #include "mmc-twl4030.h"

 #define	SDP2430_FLASH_CS	0
 #define	SDP2430_SMC91X_CS	5

 static struct mtd_partition sdp2430_partitions[] = {
 	/* bootloader (U-Boot, etc) in first sector */
 	{
 		.name		= "bootloader",
 		.offset		= 0,
 		.size		= SZ_256K,
 		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
 	 },
 	/* bootloader params in the next sector */
 	{
 		.name		= "params",
 		.offset		= MTDPART_OFS_APPEND,
 		.size		= SZ_128K,
 		.mask_flags	= 0,
 	 },
 	/* kernel */
 	{
 		.name		= "kernel",
 		.offset		= MTDPART_OFS_APPEND,
 		.size		= SZ_2M,
 		.mask_flags	= 0
 	},
 	/* file system */
 	{
 		.name		= "filesystem",
 		.offset		= MTDPART_OFS_APPEND,
 		.size		= MTDPART_SIZ_FULL,
 		.mask_flags	= 0
 	}
 };

 static struct flash_platform_data sdp2430_flash_data = {
 	.map_name	= "cfi_probe",
 	.width		= 2,
 	.parts		= sdp2430_partitions,
 	.nr_parts	= ARRAY_SIZE(sdp2430_partitions),
 };

 static struct resource sdp2430_flash_resource = {
 	.start		= SDP2430_CS0_BASE,
 	.end		= SDP2430_CS0_BASE + SZ_64M - 1,
 	.flags		= IORESOURCE_MEM,
 };

 static struct platform_device sdp2430_flash_device = {
 	.name		= "omapflash",
 	.id		= 0,
 	.dev = {
 		.platform_data	= &sdp2430_flash_data,
 	},
 	.num_resources	= 1,
 	.resource	= &sdp2430_flash_resource,
 };

 static struct resource sdp2430_smc91x_resources[] = {
 	[0] = {
 		.start	= SDP2430_CS0_BASE,
 		.end	= SDP2430_CS0_BASE + SZ_64M - 1,
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
 		.start	= OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
 		.end	= OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
 		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
 	},
 };

 static struct platform_device sdp2430_smc91x_device = {
 	.name		= "smc91x",
 	.id		= -1,
 	.num_resources	= ARRAY_SIZE(sdp2430_smc91x_resources),
 	.resource	= sdp2430_smc91x_resources,
 };

 static struct platform_device *sdp2430_devices[] __initdata = {
 	&sdp2430_smc91x_device,
 	&sdp2430_flash_device,
 };

 static inline void __init sdp2430_init_smc91x(void)
 {
 	int eth_cs;
 	unsigned long cs_mem_base;
 	unsigned int rate;
 	struct clk *gpmc_fck;

 	eth_cs = SDP2430_SMC91X_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);

 	/* Make sure CS1 timings are correct, for 2430 always muxed */
 	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(eth_cs, SZ_16M, &cs_mem_base) < 0) {
 		printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
 		goto out;
 	}

 	sdp2430_smc91x_resources[0].start = cs_mem_base + 0x300;
 	sdp2430_smc91x_resources[0].end = cs_mem_base + 0x30f;
 	udelay(100);

 	if (gpio_request(OMAP24XX_ETHR_GPIO_IRQ, "SMC91x irq") < 0) {
 		printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
 			OMAP24XX_ETHR_GPIO_IRQ);
 		gpmc_cs_free(eth_cs);
 		goto out;
 	}
 	gpio_direction_input(OMAP24XX_ETHR_GPIO_IRQ);

 out:
 	clk_disable(gpmc_fck);
 	clk_put(gpmc_fck);
 }

 static void __init omap_2430sdp_init_irq(void)
 {
 	omap2_init_common_hw();
 	omap_init_irq();
 	omap_gpio_init();
 	sdp2430_init_smc91x();
 }

 static struct omap_uart_config sdp2430_uart_config __initdata = {
 	.enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
 };

 static struct omap_board_config_kernel sdp2430_config[] = {
 	{OMAP_TAG_UART, &sdp2430_uart_config},
 };


 static struct twl4030_gpio_platform_data sdp2430_gpio_data = {
 	.gpio_base	= OMAP_MAX_GPIO_LINES,
 	.irq_base	= TWL4030_GPIO_IRQ_BASE,
 	.irq_end	= TWL4030_GPIO_IRQ_END,
 };

 static struct twl4030_platform_data sdp2430_twldata = {
 	.irq_base	= TWL4030_IRQ_BASE,
 	.irq_end	= TWL4030_IRQ_END,

 	/* platform_data for children goes here */
 	.gpio		= &sdp2430_gpio_data,
 };

 static struct i2c_board_info __initdata sdp2430_i2c_boardinfo[] = {
 	{
 		I2C_BOARD_INFO("twl4030", 0x48),
 		.flags = I2C_CLIENT_WAKE,
 		.irq = INT_24XX_SYS_NIRQ,
 		.platform_data = &sdp2430_twldata,
 	},
 };

 static int __init omap2430_i2c_init(void)
 {
 	omap_register_i2c_bus(1, 400, NULL, 0);
 	omap_register_i2c_bus(2, 2600, sdp2430_i2c_boardinfo,
 			ARRAY_SIZE(sdp2430_i2c_boardinfo));
 	return 0;
 }

 static struct twl4030_hsmmc_info mmc[] __initdata = {
 	{
 		.mmc		= 1,
 		.wires		= 4,
 		.gpio_cd	= -EINVAL,
 		.gpio_wp	= -EINVAL,
 		.ext_clock	= 1,
 	},
 	{}	/* Terminator */
 };

 static void __init omap_2430sdp_init(void)
 {
 	omap2430_i2c_init();

 	platform_add_devices(sdp2430_devices, ARRAY_SIZE(sdp2430_devices));
 	omap_board_config = sdp2430_config;
 	omap_board_config_size = ARRAY_SIZE(sdp2430_config);
 	omap_serial_init();
 	twl4030_mmc_init(mmc);
 }

 static void __init omap_2430sdp_map_io(void)
 {
 	omap2_set_globals_243x();
 	omap2_map_common_io();
 }

 MACHINE_START(OMAP_2430SDP, "OMAP2430 sdp2430 board")
 	/* Maintainer: Syed Khasim - Texas Instruments Inc */
 	.phys_io	= 0x48000000,
 	.io_pg_offst	= ((0xd8000000) >> 18) & 0xfffc,
 	.boot_params	= 0x80000100,
 	.map_io		= omap_2430sdp_map_io,
 	.init_irq	= omap_2430sdp_init_irq,
 	.init_machine	= omap_2430sdp_init,
 	.timer		= &omap_timer,
 MACHINE_END
	/*
	* linux/arch/arm/mach-omap2/board-2430sdp.c
	*
	* Copyright (C) 2006 Texas Instruments
	*
	* Modified from mach-omap2/board-generic.c
	*
	* Initial Code : Based on a patch from Komal Shah and Richard Woodruff
	* Updated the Code for 2430 SDP : Syed Mohammed Khasim
	*
	* 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/delay.h>
	#include <linux/i2c/twl4030.h>
	#include <linux/err.h>
	#include <linux/clk.h>
	#include <linux/io.h>

	#include <mach/hardware.h>
	#include <asm/mach-types.h>
	#include <asm/mach/arch.h>
	#include <asm/mach/map.h>
	#include <asm/mach/flash.h>

	#include <mach/gpio.h>
	#include <mach/mux.h>
	#include <mach/board.h>
	#include <mach/common.h>
	#include <mach/gpmc.h>

	#include "mmc-twl4030.h"

	#define SDP2430_FLASH_CS 0
	#define SDP2430_SMC91X_CS 5

	static struct mtd_partition sdp2430_partitions[] = {
	/* bootloader (U-Boot, etc) in first sector */
	{
	.name = "bootloader",
	.offset = 0,
	.size = SZ_256K,
	.mask_flags = MTD_WRITEABLE, /* force read-only */
	},
	/* bootloader params in the next sector */
	{
	.name = "params",
	.offset = MTDPART_OFS_APPEND,
	.size = SZ_128K,
	.mask_flags = 0,
	},
	/* kernel */
	{
	.name = "kernel",
	.offset = MTDPART_OFS_APPEND,
	.size = SZ_2M,
	.mask_flags = 0
	},
	/* file system */
	{
	.name = "filesystem",
	.offset = MTDPART_OFS_APPEND,
	.size = MTDPART_SIZ_FULL,
	.mask_flags = 0
	}
	};

	static struct flash_platform_data sdp2430_flash_data = {
	.map_name = "cfi_probe",
	.width = 2,
	.parts = sdp2430_partitions,
	.nr_parts = ARRAY_SIZE(sdp2430_partitions),
	};

	static struct resource sdp2430_flash_resource = {
	.start = SDP2430_CS0_BASE,
	.end = SDP2430_CS0_BASE + SZ_64M - 1,
	.flags = IORESOURCE_MEM,
	};

	static struct platform_device sdp2430_flash_device = {
	.name = "omapflash",
	.id = 0,
	.dev = {
	.platform_data = &sdp2430_flash_data,
	},
	.num_resources = 1,
	.resource = &sdp2430_flash_resource,
	};

	static struct resource sdp2430_smc91x_resources[] = {
	[0] = {
	.start = SDP2430_CS0_BASE,
	.end = SDP2430_CS0_BASE + SZ_64M - 1,
	.flags = IORESOURCE_MEM,
	},
	[1] = {
	.start = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
	.end = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
	.flags = IORESOURCE_IRQ \| IORESOURCE_IRQ_LOWLEVEL,
	},
	};

	static struct platform_device sdp2430_smc91x_device = {
	.name = "smc91x",
	.id = -1,
	.num_resources = ARRAY_SIZE(sdp2430_smc91x_resources),
	.resource = sdp2430_smc91x_resources,
	};

	static struct platform_device *sdp2430_devices[] __initdata = {
	&sdp2430_smc91x_device,
	&sdp2430_flash_device,
	};

	static inline void __init sdp2430_init_smc91x(void)
	{
	int eth_cs;
	unsigned long cs_mem_base;
	unsigned int rate;
	struct clk *gpmc_fck;

	eth_cs = SDP2430_SMC91X_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);

	/* Make sure CS1 timings are correct, for 2430 always muxed */
	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(eth_cs, SZ_16M, &cs_mem_base) < 0) {
	printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
	goto out;
	}

	sdp2430_smc91x_resources[0].start = cs_mem_base + 0x300;
	sdp2430_smc91x_resources[0].end = cs_mem_base + 0x30f;
	udelay(100);

	if (gpio_request(OMAP24XX_ETHR_GPIO_IRQ, "SMC91x irq") < 0) {
	printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
	OMAP24XX_ETHR_GPIO_IRQ);
	gpmc_cs_free(eth_cs);
	goto out;
	}
	gpio_direction_input(OMAP24XX_ETHR_GPIO_IRQ);

	out:
	clk_disable(gpmc_fck);
	clk_put(gpmc_fck);
	}

	static void __init omap_2430sdp_init_irq(void)
	{
	omap2_init_common_hw();
	omap_init_irq();
	omap_gpio_init();
	sdp2430_init_smc91x();
	}

	static struct omap_uart_config sdp2430_uart_config __initdata = {
	.enabled_uarts = ((1 << 0) \| (1 << 1) \| (1 << 2)),
	};

	static struct omap_board_config_kernel sdp2430_config[] = {
	{OMAP_TAG_UART, &sdp2430_uart_config},
	};


	static struct twl4030_gpio_platform_data sdp2430_gpio_data = {
	.gpio_base = OMAP_MAX_GPIO_LINES,
	.irq_base = TWL4030_GPIO_IRQ_BASE,
	.irq_end = TWL4030_GPIO_IRQ_END,
	};

	static struct twl4030_platform_data sdp2430_twldata = {
	.irq_base = TWL4030_IRQ_BASE,
	.irq_end = TWL4030_IRQ_END,

	/* platform_data for children goes here */
	.gpio = &sdp2430_gpio_data,
	};

	static struct i2c_board_info __initdata sdp2430_i2c_boardinfo[] = {
	{
	I2C_BOARD_INFO("twl4030", 0x48),
	.flags = I2C_CLIENT_WAKE,
	.irq = INT_24XX_SYS_NIRQ,
	.platform_data = &sdp2430_twldata,
	},
	};

	static int __init omap2430_i2c_init(void)
	{
	omap_register_i2c_bus(1, 400, NULL, 0);
	omap_register_i2c_bus(2, 2600, sdp2430_i2c_boardinfo,
	ARRAY_SIZE(sdp2430_i2c_boardinfo));
	return 0;
	}

	static struct twl4030_hsmmc_info mmc[] __initdata = {
	{
	.mmc = 1,
	.wires = 4,
	.gpio_cd = -EINVAL,
	.gpio_wp = -EINVAL,
	.ext_clock = 1,
	},
	{} /* Terminator */
	};

	static void __init omap_2430sdp_init(void)
	{
	omap2430_i2c_init();

	platform_add_devices(sdp2430_devices, ARRAY_SIZE(sdp2430_devices));
	omap_board_config = sdp2430_config;
	omap_board_config_size = ARRAY_SIZE(sdp2430_config);
	omap_serial_init();
	twl4030_mmc_init(mmc);
	}

	static void __init omap_2430sdp_map_io(void)
	{
	omap2_set_globals_243x();
	omap2_map_common_io();
	}

	MACHINE_START(OMAP_2430SDP, "OMAP2430 sdp2430 board")
	/* Maintainer: Syed Khasim - Texas Instruments Inc */
	.phys_io = 0x48000000,
	.io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
	.boot_params = 0x80000100,
	.map_io = omap_2430sdp_map_io,
	.init_irq = omap_2430sdp_init_irq,
	.init_machine = omap_2430sdp_init,
	.timer = &omap_timer,
	MACHINE_END