/* linux/arch/arm/mach-s3c2410/nor-simtec.c * * Copyright (c) 2008 Simtec Electronics * http://armlinux.simtec.co.uk/ * Ben Dooks <ben@simtec.co.uk> * * Simtec NOR mapping * * 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/module.h> #include <linux/types.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/platform_device.h> #include <linux/mtd/mtd.h> #include <linux/mtd/map.h> #include <linux/mtd/physmap.h> #include <linux/mtd/partitions.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> #include <asm/mach/irq.h> #include <mach/map.h> #include <mach/bast-map.h> #include <mach/bast-cpld.h> #include "nor-simtec.h" static void simtec_nor_vpp(struct map_info *map, int vpp) { unsigned int val; unsigned long flags; local_irq_save(flags); val = __raw_readb(BAST_VA_CTRL3); printk(KERN_DEBUG "%s(%d)\n", __func__, vpp); if (vpp) val |= BAST_CPLD_CTRL3_ROMWEN; else val &= ~BAST_CPLD_CTRL3_ROMWEN; __raw_writeb(val, BAST_VA_CTRL3); local_irq_restore(flags); } static struct physmap_flash_data simtec_nor_pdata = { .width = 2, .set_vpp = simtec_nor_vpp, .nr_parts = 0, }; static struct resource simtec_nor_resource[] = { [0] = { .start = S3C2410_CS1 + 0x4000000, .end = S3C2410_CS1 + 0x4000000 + SZ_8M - 1, .flags = IORESOURCE_MEM, } }; static struct platform_device simtec_device_nor = { .name = "physmap-flash", .id = -1, .num_resources = ARRAY_SIZE(simtec_nor_resource), .resource = simtec_nor_resource, .dev = { .platform_data = &simtec_nor_pdata, }, }; void __init nor_simtec_init(void) { int ret; ret = platform_device_register(&simtec_device_nor); if (ret < 0) printk(KERN_ERR "failed to register physmap-flash device\n"); else simtec_nor_vpp(NULL, 1); }