arch/arm/mach-nomadik/board-nhk8815.c - maze/linux - Git at Google

 /*
  *  linux/arch/arm/mach-nomadik/board-8815nhk.c
  *
  *  Copyright (C) STMicroelectronics
  *
  * 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.
  *
  *  NHK15 board specifc driver definition
  */
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/amba/bus.h>
 #include <linux/interrupt.h>
 #include <linux/gpio.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/nand.h>
 #include <linux/mtd/onenand.h>
 #include <linux/mtd/partitions.h>
 #include <linux/io.h>
 #include <asm/hardware/vic.h>
 #include <asm/sizes.h>
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/irq.h>
 #include <asm/mach/flash.h>
 #include <asm/mach/time.h>

 #include <plat/gpio-nomadik.h>
 #include <plat/mtu.h>

 #include <mach/nand.h>
 #include <mach/fsmc.h>

 #include "cpu-8815.h"

 /* Initial value for SRC control register: all timers use MXTAL/8 source */
 #define SRC_CR_INIT_MASK	0x00007fff
 #define SRC_CR_INIT_VAL		0x2aaa8000

 /* These addresses span 16MB, so use three individual pages */
 static struct resource nhk8815_nand_resources[] = {
 	{
 		.name = "nand_addr",
 		.start = NAND_IO_ADDR,
 		.end = NAND_IO_ADDR + 0xfff,
 		.flags = IORESOURCE_MEM,
 	}, {
 		.name = "nand_cmd",
 		.start = NAND_IO_CMD,
 		.end = NAND_IO_CMD + 0xfff,
 		.flags = IORESOURCE_MEM,
 	}, {
 		.name = "nand_data",
 		.start = NAND_IO_DATA,
 		.end = NAND_IO_DATA + 0xfff,
 		.flags = IORESOURCE_MEM,
 	}
 };

 static int nhk8815_nand_init(void)
 {
 	/* FSMC setup for nand chip select (8-bit nand in 8815NHK) */
 	writel(0x0000000E, FSMC_PCR(0));
 	writel(0x000D0A00, FSMC_PMEM(0));
 	writel(0x00100A00, FSMC_PATT(0));

 	/* enable access to the chip select area */
 	writel(readl(FSMC_PCR(0)) | 0x04, FSMC_PCR(0));

 	return 0;
 }

 /*
  * These partitions are the same as those used in the 2.6.20 release
  * shipped by the vendor; the first two partitions are mandated
  * by the boot ROM, and the bootloader area is somehow oversized...
  */
 static struct mtd_partition nhk8815_partitions[] = {
 	{
 		.name	= "X-Loader(NAND)",
 		.offset = 0,
 		.size	= SZ_256K,
 	}, {
 		.name	= "MemInit(NAND)",
 		.offset	= MTDPART_OFS_APPEND,
 		.size	= SZ_256K,
 	}, {
 		.name	= "BootLoader(NAND)",
 		.offset	= MTDPART_OFS_APPEND,
 		.size	= SZ_2M,
 	}, {
 		.name	= "Kernel zImage(NAND)",
 		.offset	= MTDPART_OFS_APPEND,
 		.size	= 3 * SZ_1M,
 	}, {
 		.name	= "Root Filesystem(NAND)",
 		.offset	= MTDPART_OFS_APPEND,
 		.size	= 22 * SZ_1M,
 	}, {
 		.name	= "User Filesystem(NAND)",
 		.offset	= MTDPART_OFS_APPEND,
 		.size	= MTDPART_SIZ_FULL,
 	}
 };

 static struct nomadik_nand_platform_data nhk8815_nand_data = {
 	.parts		= nhk8815_partitions,
 	.nparts		= ARRAY_SIZE(nhk8815_partitions),
 	.options	= NAND_COPYBACK | NAND_CACHEPRG | NAND_NO_PADDING \
 			| NAND_NO_READRDY,
 	.init		= nhk8815_nand_init,
 };

 static struct platform_device nhk8815_nand_device = {
 	.name		= "nomadik_nand",
 	.dev		= {
 		.platform_data = &nhk8815_nand_data,
 	},
 	.resource	= nhk8815_nand_resources,
 	.num_resources	= ARRAY_SIZE(nhk8815_nand_resources),
 };

 /* These are the partitions for the OneNand device, different from above */
 static struct mtd_partition nhk8815_onenand_partitions[] = {
 	{
 		.name	= "X-Loader(OneNAND)",
 		.offset = 0,
 		.size	= SZ_256K,
 	}, {
 		.name	= "MemInit(OneNAND)",
 		.offset	= MTDPART_OFS_APPEND,
 		.size	= SZ_256K,
 	}, {
 		.name	= "BootLoader(OneNAND)",
 		.offset	= MTDPART_OFS_APPEND,
 		.size	= SZ_2M-SZ_256K,
 	}, {
 		.name	= "SysImage(OneNAND)",
 		.offset	= MTDPART_OFS_APPEND,
 		.size	= 4 * SZ_1M,
 	}, {
 		.name	= "Root Filesystem(OneNAND)",
 		.offset	= MTDPART_OFS_APPEND,
 		.size	= 22 * SZ_1M,
 	}, {
 		.name	= "User Filesystem(OneNAND)",
 		.offset	= MTDPART_OFS_APPEND,
 		.size	= MTDPART_SIZ_FULL,
 	}
 };

 static struct onenand_platform_data nhk8815_onenand_data = {
 	.parts		= nhk8815_onenand_partitions,
 	.nr_parts	= ARRAY_SIZE(nhk8815_onenand_partitions),
 };

 static struct resource nhk8815_onenand_resource[] = {
 	{
 		.start		= 0x30000000,
 		.end		= 0x30000000 + SZ_128K - 1,
 		.flags		= IORESOURCE_MEM,
 	},
 };

 static struct platform_device nhk8815_onenand_device = {
 	.name		= "onenand-flash",
 	.id		= -1,
 	.dev		= {
 		.platform_data	= &nhk8815_onenand_data,
 	},
 	.resource	= nhk8815_onenand_resource,
 	.num_resources	= ARRAY_SIZE(nhk8815_onenand_resource),
 };

 static void __init nhk8815_onenand_init(void)
 {
 #ifdef CONFIG_MTD_ONENAND
        /* Set up SMCS0 for OneNand */
 	writel(0x000030db, FSMC_BCR(0));
 	writel(0x02100551, FSMC_BTR(0));
 #endif
 }

 static AMBA_APB_DEVICE(uart0, "uart0", 0, NOMADIK_UART0_BASE,
 	{ IRQ_UART0 }, NULL);

 static AMBA_APB_DEVICE(uart1, "uart1", 0, NOMADIK_UART1_BASE,
 	{ IRQ_UART1 }, NULL);

 static struct amba_device *amba_devs[] __initdata = {
 	&uart0_device,
 	&uart1_device,
 };

 static struct resource nhk8815_eth_resources[] = {
 	{
 		.name = "smc91x-regs",
 		.start = 0x34000000 + 0x300,
 		.end = 0x34000000 + SZ_64K - 1,
 		.flags = IORESOURCE_MEM,
 	}, {
 		.start = NOMADIK_GPIO_TO_IRQ(115),
 		.end = NOMADIK_GPIO_TO_IRQ(115),
 		.flags = IORESOURCE_IRQ | IRQF_TRIGGER_RISING,
 	}
 };

 static struct platform_device nhk8815_eth_device = {
 	.name = "smc91x",
 	.resource = nhk8815_eth_resources,
 	.num_resources = ARRAY_SIZE(nhk8815_eth_resources),
 };

 static int __init nhk8815_eth_init(void)
 {
 	int gpio_nr = 115; /* hardwired in the board */
 	int err;

 	err = gpio_request(gpio_nr, "eth_irq");
 	if (!err) err = nmk_gpio_set_mode(gpio_nr, NMK_GPIO_ALT_GPIO);
 	if (!err) err = gpio_direction_input(gpio_nr);
 	if (err)
 		pr_err("Error %i in %s\n", err, __func__);
 	return err;
 }
 device_initcall(nhk8815_eth_init);

 static struct platform_device *nhk8815_platform_devices[] __initdata = {
 	&nhk8815_nand_device,
 	&nhk8815_onenand_device,
 	&nhk8815_eth_device,
 	/* will add more devices */
 };

 static void __init nomadik_timer_init(void)
 {
 	u32 src_cr;

 	/* Configure timer sources in "system reset controller" ctrl reg */
 	src_cr = readl(io_p2v(NOMADIK_SRC_BASE));
 	src_cr &= SRC_CR_INIT_MASK;
 	src_cr |= SRC_CR_INIT_VAL;
 	writel(src_cr, io_p2v(NOMADIK_SRC_BASE));

 	nmdk_timer_init(io_p2v(NOMADIK_MTU0_BASE));
 }

 static struct sys_timer nomadik_timer = {
 	.init	= nomadik_timer_init,
 };

 static void __init nhk8815_platform_init(void)
 {
 	int i;

 	cpu8815_platform_init();
 	nhk8815_onenand_init();
 	platform_add_devices(nhk8815_platform_devices,
 			     ARRAY_SIZE(nhk8815_platform_devices));

 	for (i = 0; i < ARRAY_SIZE(amba_devs); i++)
 		amba_device_register(amba_devs[i], &iomem_resource);
 }

 MACHINE_START(NOMADIK, "NHK8815")
 	/* Maintainer: ST MicroElectronics */
 	.atag_offset	= 0x100,
 	.map_io		= cpu8815_map_io,
 	.init_irq	= cpu8815_init_irq,
 	.handle_irq	= vic_handle_irq,
 	.timer		= &nomadik_timer,
 	.init_machine	= nhk8815_platform_init,
 	.restart	= cpu8815_restart,
 MACHINE_END
	/*
	* linux/arch/arm/mach-nomadik/board-8815nhk.c
	*
	* Copyright (C) STMicroelectronics
	*
	* 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.
	*
	* NHK15 board specifc driver definition
	*/
	#include <linux/types.h>
	#include <linux/kernel.h>
	#include <linux/init.h>
	#include <linux/platform_device.h>
	#include <linux/amba/bus.h>
	#include <linux/interrupt.h>
	#include <linux/gpio.h>
	#include <linux/mtd/mtd.h>
	#include <linux/mtd/nand.h>
	#include <linux/mtd/onenand.h>
	#include <linux/mtd/partitions.h>
	#include <linux/io.h>
	#include <asm/hardware/vic.h>
	#include <asm/sizes.h>
	#include <asm/mach-types.h>
	#include <asm/mach/arch.h>
	#include <asm/mach/irq.h>
	#include <asm/mach/flash.h>
	#include <asm/mach/time.h>

	#include <plat/gpio-nomadik.h>
	#include <plat/mtu.h>

	#include <mach/nand.h>
	#include <mach/fsmc.h>

	#include "cpu-8815.h"

	/* Initial value for SRC control register: all timers use MXTAL/8 source */
	#define SRC_CR_INIT_MASK 0x00007fff
	#define SRC_CR_INIT_VAL 0x2aaa8000

	/* These addresses span 16MB, so use three individual pages */
	static struct resource nhk8815_nand_resources[] = {
	{
	.name = "nand_addr",
	.start = NAND_IO_ADDR,
	.end = NAND_IO_ADDR + 0xfff,
	.flags = IORESOURCE_MEM,
	}, {
	.name = "nand_cmd",
	.start = NAND_IO_CMD,
	.end = NAND_IO_CMD + 0xfff,
	.flags = IORESOURCE_MEM,
	}, {
	.name = "nand_data",
	.start = NAND_IO_DATA,
	.end = NAND_IO_DATA + 0xfff,
	.flags = IORESOURCE_MEM,
	}
	};

	static int nhk8815_nand_init(void)
	{
	/* FSMC setup for nand chip select (8-bit nand in 8815NHK) */
	writel(0x0000000E, FSMC_PCR(0));
	writel(0x000D0A00, FSMC_PMEM(0));
	writel(0x00100A00, FSMC_PATT(0));

	/* enable access to the chip select area */
	writel(readl(FSMC_PCR(0)) \| 0x04, FSMC_PCR(0));

	return 0;
	}

	/*
	* These partitions are the same as those used in the 2.6.20 release
	* shipped by the vendor; the first two partitions are mandated
	* by the boot ROM, and the bootloader area is somehow oversized...
	*/
	static struct mtd_partition nhk8815_partitions[] = {
	{
	.name = "X-Loader(NAND)",
	.offset = 0,
	.size = SZ_256K,
	}, {
	.name = "MemInit(NAND)",
	.offset = MTDPART_OFS_APPEND,
	.size = SZ_256K,
	}, {
	.name = "BootLoader(NAND)",
	.offset = MTDPART_OFS_APPEND,
	.size = SZ_2M,
	}, {
	.name = "Kernel zImage(NAND)",
	.offset = MTDPART_OFS_APPEND,
	.size = 3 * SZ_1M,
	}, {
	.name = "Root Filesystem(NAND)",
	.offset = MTDPART_OFS_APPEND,
	.size = 22 * SZ_1M,
	}, {
	.name = "User Filesystem(NAND)",
	.offset = MTDPART_OFS_APPEND,
	.size = MTDPART_SIZ_FULL,
	}
	};

	static struct nomadik_nand_platform_data nhk8815_nand_data = {
	.parts = nhk8815_partitions,
	.nparts = ARRAY_SIZE(nhk8815_partitions),
	.options = NAND_COPYBACK \| NAND_CACHEPRG \| NAND_NO_PADDING \
	\| NAND_NO_READRDY,
	.init = nhk8815_nand_init,
	};

	static struct platform_device nhk8815_nand_device = {
	.name = "nomadik_nand",
	.dev = {
	.platform_data = &nhk8815_nand_data,
	},
	.resource = nhk8815_nand_resources,
	.num_resources = ARRAY_SIZE(nhk8815_nand_resources),
	};

	/* These are the partitions for the OneNand device, different from above */
	static struct mtd_partition nhk8815_onenand_partitions[] = {
	{
	.name = "X-Loader(OneNAND)",
	.offset = 0,
	.size = SZ_256K,
	}, {
	.name = "MemInit(OneNAND)",
	.offset = MTDPART_OFS_APPEND,
	.size = SZ_256K,
	}, {
	.name = "BootLoader(OneNAND)",
	.offset = MTDPART_OFS_APPEND,
	.size = SZ_2M-SZ_256K,
	}, {
	.name = "SysImage(OneNAND)",
	.offset = MTDPART_OFS_APPEND,
	.size = 4 * SZ_1M,
	}, {
	.name = "Root Filesystem(OneNAND)",
	.offset = MTDPART_OFS_APPEND,
	.size = 22 * SZ_1M,
	}, {
	.name = "User Filesystem(OneNAND)",
	.offset = MTDPART_OFS_APPEND,
	.size = MTDPART_SIZ_FULL,
	}
	};

	static struct onenand_platform_data nhk8815_onenand_data = {
	.parts = nhk8815_onenand_partitions,
	.nr_parts = ARRAY_SIZE(nhk8815_onenand_partitions),
	};

	static struct resource nhk8815_onenand_resource[] = {
	{
	.start = 0x30000000,
	.end = 0x30000000 + SZ_128K - 1,
	.flags = IORESOURCE_MEM,
	},
	};

	static struct platform_device nhk8815_onenand_device = {
	.name = "onenand-flash",
	.id = -1,
	.dev = {
	.platform_data = &nhk8815_onenand_data,
	},
	.resource = nhk8815_onenand_resource,
	.num_resources = ARRAY_SIZE(nhk8815_onenand_resource),
	};

	static void __init nhk8815_onenand_init(void)
	{
	#ifdef CONFIG_MTD_ONENAND
	/* Set up SMCS0 for OneNand */
	writel(0x000030db, FSMC_BCR(0));
	writel(0x02100551, FSMC_BTR(0));
	#endif
	}

	static AMBA_APB_DEVICE(uart0, "uart0", 0, NOMADIK_UART0_BASE,
	{ IRQ_UART0 }, NULL);

	static AMBA_APB_DEVICE(uart1, "uart1", 0, NOMADIK_UART1_BASE,
	{ IRQ_UART1 }, NULL);

	static struct amba_device *amba_devs[] __initdata = {
	&uart0_device,
	&uart1_device,
	};

	static struct resource nhk8815_eth_resources[] = {
	{
	.name = "smc91x-regs",
	.start = 0x34000000 + 0x300,
	.end = 0x34000000 + SZ_64K - 1,
	.flags = IORESOURCE_MEM,
	}, {
	.start = NOMADIK_GPIO_TO_IRQ(115),
	.end = NOMADIK_GPIO_TO_IRQ(115),
	.flags = IORESOURCE_IRQ \| IRQF_TRIGGER_RISING,
	}
	};

	static struct platform_device nhk8815_eth_device = {
	.name = "smc91x",
	.resource = nhk8815_eth_resources,
	.num_resources = ARRAY_SIZE(nhk8815_eth_resources),
	};

	static int __init nhk8815_eth_init(void)
	{
	int gpio_nr = 115; /* hardwired in the board */
	int err;

	err = gpio_request(gpio_nr, "eth_irq");
	if (!err) err = nmk_gpio_set_mode(gpio_nr, NMK_GPIO_ALT_GPIO);
	if (!err) err = gpio_direction_input(gpio_nr);
	if (err)
	pr_err("Error %i in %s\n", err, __func__);
	return err;
	}
	device_initcall(nhk8815_eth_init);

	static struct platform_device *nhk8815_platform_devices[] __initdata = {
	&nhk8815_nand_device,
	&nhk8815_onenand_device,
	&nhk8815_eth_device,
	/* will add more devices */
	};

	static void __init nomadik_timer_init(void)
	{
	u32 src_cr;

	/* Configure timer sources in "system reset controller" ctrl reg */
	src_cr = readl(io_p2v(NOMADIK_SRC_BASE));
	src_cr &= SRC_CR_INIT_MASK;
	src_cr \|= SRC_CR_INIT_VAL;
	writel(src_cr, io_p2v(NOMADIK_SRC_BASE));

	nmdk_timer_init(io_p2v(NOMADIK_MTU0_BASE));
	}

	static struct sys_timer nomadik_timer = {
	.init = nomadik_timer_init,
	};

	static void __init nhk8815_platform_init(void)
	{
	int i;

	cpu8815_platform_init();
	nhk8815_onenand_init();
	platform_add_devices(nhk8815_platform_devices,
	ARRAY_SIZE(nhk8815_platform_devices));

	for (i = 0; i < ARRAY_SIZE(amba_devs); i++)
	amba_device_register(amba_devs[i], &iomem_resource);
	}

	MACHINE_START(NOMADIK, "NHK8815")
	/* Maintainer: ST MicroElectronics */
	.atag_offset = 0x100,
	.map_io = cpu8815_map_io,
	.init_irq = cpu8815_init_irq,
	.handle_irq = vic_handle_irq,
	.timer = &nomadik_timer,
	.init_machine = nhk8815_platform_init,
	.restart = cpu8815_restart,
	MACHINE_END