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/*
* 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/partitions.h>
#include <linux/io.h>
#include <asm/sizes.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/irq.h>
#include <mach/setup.h>
#include <mach/nand.h>
#include <mach/fsmc.h>
#include "clock.h"
/* These adresses 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 | NAND_NO_AUTOINCR,
.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),
};
#define __MEM_4K_RESOURCE(x) \
.res = {.start = (x), .end = (x) + SZ_4K - 1, .flags = IORESOURCE_MEM}
static struct amba_device uart0_device = {
.dev = { .init_name = "uart0" },
__MEM_4K_RESOURCE(NOMADIK_UART0_BASE),
.irq = {IRQ_UART0, NO_IRQ},
};
static struct amba_device uart1_device = {
.dev = { .init_name = "uart1" },
__MEM_4K_RESOURCE(NOMADIK_UART1_BASE),
.irq = {IRQ_UART1, NO_IRQ},
};
static struct amba_device *amba_devs[] __initdata = {
&uart0_device,
&uart1_device,
};
/* We have a fixed clock alone, by now */
static struct clk nhk8815_clk_48 = {
.rate = 48*1000*1000,
};
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_eth_device,
/* will add more devices */
};
static void __init nhk8815_platform_init(void)
{
int i;
cpu8815_platform_init();
platform_add_devices(nhk8815_platform_devices,
ARRAY_SIZE(nhk8815_platform_devices));
for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
nmdk_clk_create(&nhk8815_clk_48, amba_devs[i]->dev.init_name);
amba_device_register(amba_devs[i], &iomem_resource);
}
}
MACHINE_START(NOMADIK, "NHK8815")
/* Maintainer: ST MicroElectronics */
.phys_io = NOMADIK_UART0_BASE,
.io_pg_offst = (IO_ADDRESS(NOMADIK_UART0_BASE) >> 18) & 0xfffc,
.boot_params = 0x100,
.map_io = cpu8815_map_io,
.init_irq = cpu8815_init_irq,
.timer = &nomadik_timer,
.init_machine = nhk8815_platform_init,
MACHINE_END
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