arch/arm/mach-ixp4xx/ixdp425-setup.c - maze/linux - Git at Google

 /*
  * arch/arm/mach-ixp4xx/ixdp425-setup.c
  *
  * IXDP425/IXCDP1100 board-setup
  *
  * Copyright (C) 2003-2005 MontaVista Software, Inc.
  *
  * Author: Deepak Saxena <dsaxena@plexity.net>
  */

 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/device.h>
 #include <linux/serial.h>
 #include <linux/tty.h>
 #include <linux/serial_8250.h>
 #include <linux/slab.h>
 #include <linux/i2c-gpio.h>
 #include <linux/io.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/nand.h>
 #include <linux/mtd/partitions.h>

 #include <asm/types.h>
 #include <asm/setup.h>
 #include <asm/memory.h>
 #include <asm/hardware.h>
 #include <asm/mach-types.h>
 #include <asm/irq.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/flash.h>
 #include <asm/delay.h>

 static struct flash_platform_data ixdp425_flash_data = {
 	.map_name	= "cfi_probe",
 	.width		= 2,
 };

 static struct resource ixdp425_flash_resource = {
 	.flags		= IORESOURCE_MEM,
 };

 static struct platform_device ixdp425_flash = {
 	.name		= "IXP4XX-Flash",
 	.id		= 0,
 	.dev		= {
 		.platform_data = &ixdp425_flash_data,
 	},
 	.num_resources	= 1,
 	.resource	= &ixdp425_flash_resource,
 };

 #if defined(CONFIG_MTD_NAND_PLATFORM) || \
     defined(CONFIG_MTD_NAND_PLATFORM_MODULE)

 #ifdef CONFIG_MTD_PARTITIONS
 const char *part_probes[] = { "cmdlinepart", NULL };

 static struct mtd_partition ixdp425_partitions[] = {
 	{
 		.name	= "ixp400 NAND FS 0",
 		.offset	= 0,
 		.size 	= SZ_8M
 	}, {
 		.name	= "ixp400 NAND FS 1",
 		.offset	= MTDPART_OFS_APPEND,
 		.size	= MTDPART_SIZ_FULL
 	},
 };
 #endif

 static void
 ixdp425_flash_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 {
 	struct nand_chip *this = mtd->priv;
 	int offset = (int)this->priv;

 	if (ctrl & NAND_CTRL_CHANGE) {
 		if (ctrl & NAND_NCE) {
 			gpio_line_set(IXDP425_NAND_NCE_PIN, IXP4XX_GPIO_LOW);
 			udelay(5);
 		} else
 			gpio_line_set(IXDP425_NAND_NCE_PIN, IXP4XX_GPIO_HIGH);

 		offset = (ctrl & NAND_CLE) ? IXDP425_NAND_CMD_BYTE : 0;
 		offset |= (ctrl & NAND_ALE) ? IXDP425_NAND_ADDR_BYTE : 0;
 		this->priv = (void *)offset;
 	}

 	if (cmd != NAND_CMD_NONE)
 		writeb(cmd, this->IO_ADDR_W + offset);
 }

 static struct platform_nand_data ixdp425_flash_nand_data = {
 	.chip = {
 		.chip_delay		= 30,
 		.options		= NAND_NO_AUTOINCR,
 #ifdef CONFIG_MTD_PARTITIONS
 		.part_probe_types 	= part_probes,
 		.partitions	 	= ixdp425_partitions,
 		.nr_partitions	 	= ARRAY_SIZE(ixdp425_partitions),
 #endif
 	},
 	.ctrl = {
 		.cmd_ctrl 		= ixdp425_flash_nand_cmd_ctrl
 	}
 };

 static struct resource ixdp425_flash_nand_resource = {
 	.flags		= IORESOURCE_MEM,
 };

 static struct platform_device ixdp425_flash_nand = {
 	.name		= "gen_nand",
 	.id		= -1,
 	.dev		= {
 		.platform_data = &ixdp425_flash_nand_data,
 	},
 	.num_resources	= 1,
 	.resource	= &ixdp425_flash_nand_resource,
 };
 #endif	/* CONFIG_MTD_NAND_PLATFORM */

 static struct i2c_gpio_platform_data ixdp425_i2c_gpio_data = {
 	.sda_pin	= IXDP425_SDA_PIN,
 	.scl_pin	= IXDP425_SCL_PIN,
 };

 static struct platform_device ixdp425_i2c_gpio = {
 	.name		= "i2c-gpio",
 	.id		= 0,
 	.dev	 = {
 		.platform_data	= &ixdp425_i2c_gpio_data,
 	},
 };

 static struct resource ixdp425_uart_resources[] = {
 	{
 		.start		= IXP4XX_UART1_BASE_PHYS,
 		.end		= IXP4XX_UART1_BASE_PHYS + 0x0fff,
 		.flags		= IORESOURCE_MEM
 	},
 	{
 		.start		= IXP4XX_UART2_BASE_PHYS,
 		.end		= IXP4XX_UART2_BASE_PHYS + 0x0fff,
 		.flags		= IORESOURCE_MEM
 	}
 };

 static struct plat_serial8250_port ixdp425_uart_data[] = {
 	{
 		.mapbase	= IXP4XX_UART1_BASE_PHYS,
 		.membase	= (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
 		.irq		= IRQ_IXP4XX_UART1,
 		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
 		.iotype		= UPIO_MEM,
 		.regshift	= 2,
 		.uartclk	= IXP4XX_UART_XTAL,
 	},
 	{
 		.mapbase	= IXP4XX_UART2_BASE_PHYS,
 		.membase	= (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
 		.irq		= IRQ_IXP4XX_UART2,
 		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
 		.iotype		= UPIO_MEM,
 		.regshift	= 2,
 		.uartclk	= IXP4XX_UART_XTAL,
 	},
 	{ },
 };

 static struct platform_device ixdp425_uart = {
 	.name			= "serial8250",
 	.id			= PLAT8250_DEV_PLATFORM,
 	.dev.platform_data	= ixdp425_uart_data,
 	.num_resources		= 2,
 	.resource		= ixdp425_uart_resources
 };

 static struct platform_device *ixdp425_devices[] __initdata = {
 	&ixdp425_i2c_gpio,
 	&ixdp425_flash,
 #if defined(CONFIG_MTD_NAND_PLATFORM) || \
     defined(CONFIG_MTD_NAND_PLATFORM_MODULE)
 	&ixdp425_flash_nand,
 #endif
 	&ixdp425_uart
 };

 static void __init ixdp425_init(void)
 {
 	ixp4xx_sys_init();

 	ixdp425_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
 	ixdp425_flash_resource.end =
 		IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;

 #if defined(CONFIG_MTD_NAND_PLATFORM) || \
     defined(CONFIG_MTD_NAND_PLATFORM_MODULE)
 	ixdp425_flash_nand_resource.start = IXP4XX_EXP_BUS_BASE(3),
 	ixdp425_flash_nand_resource.end   = IXP4XX_EXP_BUS_BASE(3) + 0x10 - 1;

 	gpio_line_config(IXDP425_NAND_NCE_PIN, IXP4XX_GPIO_OUT);

 	/* Configure expansion bus for NAND Flash */
 	*IXP4XX_EXP_CS3 = IXP4XX_EXP_BUS_CS_EN |
 			  IXP4XX_EXP_BUS_STROBE_T(1) |	/* extend by 1 clock */
 			  IXP4XX_EXP_BUS_CYCLES(0) |	/* Intel cycles */
 			  IXP4XX_EXP_BUS_SIZE(0) |	/* 512bytes addr space*/
 			  IXP4XX_EXP_BUS_WR_EN |
 			  IXP4XX_EXP_BUS_BYTE_EN;	/* 8 bit data bus */
 #endif

 	if (cpu_is_ixp43x()) {
 		ixdp425_uart.num_resources = 1;
 		ixdp425_uart_data[1].flags = 0;
 	}

 	platform_add_devices(ixdp425_devices, ARRAY_SIZE(ixdp425_devices));
 }

 #ifdef CONFIG_ARCH_IXDP425
 MACHINE_START(IXDP425, "Intel IXDP425 Development Platform")
 	/* Maintainer: MontaVista Software, Inc. */
 	.phys_io	= IXP4XX_PERIPHERAL_BASE_PHYS,
 	.io_pg_offst	= ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
 	.map_io		= ixp4xx_map_io,
 	.init_irq	= ixp4xx_init_irq,
 	.timer		= &ixp4xx_timer,
 	.boot_params	= 0x0100,
 	.init_machine	= ixdp425_init,
 MACHINE_END
 #endif

 #ifdef CONFIG_MACH_IXDP465
 MACHINE_START(IXDP465, "Intel IXDP465 Development Platform")
 	/* Maintainer: MontaVista Software, Inc. */
 	.phys_io	= IXP4XX_PERIPHERAL_BASE_PHYS,
 	.io_pg_offst	= ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
 	.map_io		= ixp4xx_map_io,
 	.init_irq	= ixp4xx_init_irq,
 	.timer		= &ixp4xx_timer,
 	.boot_params	= 0x0100,
 	.init_machine	= ixdp425_init,
 MACHINE_END
 #endif

 #ifdef CONFIG_ARCH_PRPMC1100
 MACHINE_START(IXCDP1100, "Intel IXCDP1100 Development Platform")
 	/* Maintainer: MontaVista Software, Inc. */
 	.phys_io	= IXP4XX_PERIPHERAL_BASE_PHYS,
 	.io_pg_offst	= ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
 	.map_io		= ixp4xx_map_io,
 	.init_irq	= ixp4xx_init_irq,
 	.timer		= &ixp4xx_timer,
 	.boot_params	= 0x0100,
 	.init_machine	= ixdp425_init,
 MACHINE_END
 #endif

 #ifdef CONFIG_MACH_KIXRP435
 MACHINE_START(KIXRP435, "Intel KIXRP435 Reference Platform")
 	/* Maintainer: MontaVista Software, Inc. */
 	.phys_io	= IXP4XX_PERIPHERAL_BASE_PHYS,
 	.io_pg_offst	= ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
 	.map_io		= ixp4xx_map_io,
 	.init_irq	= ixp4xx_init_irq,
 	.timer		= &ixp4xx_timer,
 	.boot_params	= 0x0100,
 	.init_machine	= ixdp425_init,
 MACHINE_END
 #endif
	/*
	* arch/arm/mach-ixp4xx/ixdp425-setup.c
	*
	* IXDP425/IXCDP1100 board-setup
	*
	* Copyright (C) 2003-2005 MontaVista Software, Inc.
	*
	* Author: Deepak Saxena <dsaxena@plexity.net>
	*/

	#include <linux/kernel.h>
	#include <linux/init.h>
	#include <linux/device.h>
	#include <linux/serial.h>
	#include <linux/tty.h>
	#include <linux/serial_8250.h>
	#include <linux/slab.h>
	#include <linux/i2c-gpio.h>
	#include <linux/io.h>
	#include <linux/mtd/mtd.h>
	#include <linux/mtd/nand.h>
	#include <linux/mtd/partitions.h>

	#include <asm/types.h>
	#include <asm/setup.h>
	#include <asm/memory.h>
	#include <asm/hardware.h>
	#include <asm/mach-types.h>
	#include <asm/irq.h>
	#include <asm/mach/arch.h>
	#include <asm/mach/flash.h>
	#include <asm/delay.h>

	static struct flash_platform_data ixdp425_flash_data = {
	.map_name = "cfi_probe",
	.width = 2,
	};

	static struct resource ixdp425_flash_resource = {
	.flags = IORESOURCE_MEM,
	};

	static struct platform_device ixdp425_flash = {
	.name = "IXP4XX-Flash",
	.id = 0,
	.dev = {
	.platform_data = &ixdp425_flash_data,
	},
	.num_resources = 1,
	.resource = &ixdp425_flash_resource,
	};

	#if defined(CONFIG_MTD_NAND_PLATFORM) \|\| \
	defined(CONFIG_MTD_NAND_PLATFORM_MODULE)

	#ifdef CONFIG_MTD_PARTITIONS
	const char *part_probes[] = { "cmdlinepart", NULL };

	static struct mtd_partition ixdp425_partitions[] = {
	{
	.name = "ixp400 NAND FS 0",
	.offset = 0,
	.size = SZ_8M
	}, {
	.name = "ixp400 NAND FS 1",
	.offset = MTDPART_OFS_APPEND,
	.size = MTDPART_SIZ_FULL
	},
	};
	#endif

	static void
	ixdp425_flash_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
	{
	struct nand_chip *this = mtd->priv;
	int offset = (int)this->priv;

	if (ctrl & NAND_CTRL_CHANGE) {
	if (ctrl & NAND_NCE) {
	gpio_line_set(IXDP425_NAND_NCE_PIN, IXP4XX_GPIO_LOW);
	udelay(5);
	} else
	gpio_line_set(IXDP425_NAND_NCE_PIN, IXP4XX_GPIO_HIGH);

	offset = (ctrl & NAND_CLE) ? IXDP425_NAND_CMD_BYTE : 0;
	offset \|= (ctrl & NAND_ALE) ? IXDP425_NAND_ADDR_BYTE : 0;
	this->priv = (void *)offset;
	}

	if (cmd != NAND_CMD_NONE)
	writeb(cmd, this->IO_ADDR_W + offset);
	}

	static struct platform_nand_data ixdp425_flash_nand_data = {
	.chip = {
	.chip_delay = 30,
	.options = NAND_NO_AUTOINCR,
	#ifdef CONFIG_MTD_PARTITIONS
	.part_probe_types = part_probes,
	.partitions = ixdp425_partitions,
	.nr_partitions = ARRAY_SIZE(ixdp425_partitions),
	#endif
	},
	.ctrl = {
	.cmd_ctrl = ixdp425_flash_nand_cmd_ctrl
	}
	};

	static struct resource ixdp425_flash_nand_resource = {
	.flags = IORESOURCE_MEM,
	};

	static struct platform_device ixdp425_flash_nand = {
	.name = "gen_nand",
	.id = -1,
	.dev = {
	.platform_data = &ixdp425_flash_nand_data,
	},
	.num_resources = 1,
	.resource = &ixdp425_flash_nand_resource,
	};
	#endif /* CONFIG_MTD_NAND_PLATFORM */

	static struct i2c_gpio_platform_data ixdp425_i2c_gpio_data = {
	.sda_pin = IXDP425_SDA_PIN,
	.scl_pin = IXDP425_SCL_PIN,
	};

	static struct platform_device ixdp425_i2c_gpio = {
	.name = "i2c-gpio",
	.id = 0,
	.dev = {
	.platform_data = &ixdp425_i2c_gpio_data,
	},
	};

	static struct resource ixdp425_uart_resources[] = {
	{
	.start = IXP4XX_UART1_BASE_PHYS,
	.end = IXP4XX_UART1_BASE_PHYS + 0x0fff,
	.flags = IORESOURCE_MEM
	},
	{
	.start = IXP4XX_UART2_BASE_PHYS,
	.end = IXP4XX_UART2_BASE_PHYS + 0x0fff,
	.flags = IORESOURCE_MEM
	}
	};

	static struct plat_serial8250_port ixdp425_uart_data[] = {
	{
	.mapbase = IXP4XX_UART1_BASE_PHYS,
	.membase = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
	.irq = IRQ_IXP4XX_UART1,
	.flags = UPF_BOOT_AUTOCONF \| UPF_SKIP_TEST,
	.iotype = UPIO_MEM,
	.regshift = 2,
	.uartclk = IXP4XX_UART_XTAL,
	},
	{
	.mapbase = IXP4XX_UART2_BASE_PHYS,
	.membase = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
	.irq = IRQ_IXP4XX_UART2,
	.flags = UPF_BOOT_AUTOCONF \| UPF_SKIP_TEST,
	.iotype = UPIO_MEM,
	.regshift = 2,
	.uartclk = IXP4XX_UART_XTAL,
	},
	{ },
	};

	static struct platform_device ixdp425_uart = {
	.name = "serial8250",
	.id = PLAT8250_DEV_PLATFORM,
	.dev.platform_data = ixdp425_uart_data,
	.num_resources = 2,
	.resource = ixdp425_uart_resources
	};

	static struct platform_device *ixdp425_devices[] __initdata = {
	&ixdp425_i2c_gpio,
	&ixdp425_flash,
	#if defined(CONFIG_MTD_NAND_PLATFORM) \|\| \
	defined(CONFIG_MTD_NAND_PLATFORM_MODULE)
	&ixdp425_flash_nand,
	#endif
	&ixdp425_uart
	};

	static void __init ixdp425_init(void)
	{
	ixp4xx_sys_init();

	ixdp425_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
	ixdp425_flash_resource.end =
	IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;

	#if defined(CONFIG_MTD_NAND_PLATFORM) \|\| \
	defined(CONFIG_MTD_NAND_PLATFORM_MODULE)
	ixdp425_flash_nand_resource.start = IXP4XX_EXP_BUS_BASE(3),
	ixdp425_flash_nand_resource.end = IXP4XX_EXP_BUS_BASE(3) + 0x10 - 1;

	gpio_line_config(IXDP425_NAND_NCE_PIN, IXP4XX_GPIO_OUT);

	/* Configure expansion bus for NAND Flash */
	*IXP4XX_EXP_CS3 = IXP4XX_EXP_BUS_CS_EN \|
	IXP4XX_EXP_BUS_STROBE_T(1) \| /* extend by 1 clock */
	IXP4XX_EXP_BUS_CYCLES(0) \| /* Intel cycles */
	IXP4XX_EXP_BUS_SIZE(0) \| /* 512bytes addr space*/
	IXP4XX_EXP_BUS_WR_EN \|
	IXP4XX_EXP_BUS_BYTE_EN; /* 8 bit data bus */
	#endif

	if (cpu_is_ixp43x()) {
	ixdp425_uart.num_resources = 1;
	ixdp425_uart_data[1].flags = 0;
	}

	platform_add_devices(ixdp425_devices, ARRAY_SIZE(ixdp425_devices));
	}

	#ifdef CONFIG_ARCH_IXDP425
	MACHINE_START(IXDP425, "Intel IXDP425 Development Platform")
	/* Maintainer: MontaVista Software, Inc. */
	.phys_io = IXP4XX_PERIPHERAL_BASE_PHYS,
	.io_pg_offst = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
	.map_io = ixp4xx_map_io,
	.init_irq = ixp4xx_init_irq,
	.timer = &ixp4xx_timer,
	.boot_params = 0x0100,
	.init_machine = ixdp425_init,
	MACHINE_END
	#endif

	#ifdef CONFIG_MACH_IXDP465
	MACHINE_START(IXDP465, "Intel IXDP465 Development Platform")
	/* Maintainer: MontaVista Software, Inc. */
	.phys_io = IXP4XX_PERIPHERAL_BASE_PHYS,
	.io_pg_offst = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
	.map_io = ixp4xx_map_io,
	.init_irq = ixp4xx_init_irq,
	.timer = &ixp4xx_timer,
	.boot_params = 0x0100,
	.init_machine = ixdp425_init,
	MACHINE_END
	#endif

	#ifdef CONFIG_ARCH_PRPMC1100
	MACHINE_START(IXCDP1100, "Intel IXCDP1100 Development Platform")
	/* Maintainer: MontaVista Software, Inc. */
	.phys_io = IXP4XX_PERIPHERAL_BASE_PHYS,
	.io_pg_offst = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
	.map_io = ixp4xx_map_io,
	.init_irq = ixp4xx_init_irq,
	.timer = &ixp4xx_timer,
	.boot_params = 0x0100,
	.init_machine = ixdp425_init,
	MACHINE_END
	#endif

	#ifdef CONFIG_MACH_KIXRP435
	MACHINE_START(KIXRP435, "Intel KIXRP435 Reference Platform")
	/* Maintainer: MontaVista Software, Inc. */
	.phys_io = IXP4XX_PERIPHERAL_BASE_PHYS,
	.io_pg_offst = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
	.map_io = ixp4xx_map_io,
	.init_irq = ixp4xx_init_irq,
	.timer = &ixp4xx_timer,
	.boot_params = 0x0100,
	.init_machine = ixdp425_init,
	MACHINE_END
	#endif