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74 lines
1.5 KiB
74 lines
1.5 KiB
// SPDX-License-Identifier: GPL-2.0 |
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// |
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// Copyright (c) 2008 Simtec Electronics |
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// http://armlinux.simtec.co.uk/ |
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// Ben Dooks <[email protected]> |
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// |
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// Simtec NOR mapping |
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#include <linux/module.h> |
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#include <linux/types.h> |
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#include <linux/init.h> |
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#include <linux/kernel.h> |
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#include <linux/platform_device.h> |
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#include <linux/mtd/mtd.h> |
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#include <linux/mtd/map.h> |
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#include <linux/mtd/physmap.h> |
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#include <linux/mtd/partitions.h> |
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#include <asm/mach/arch.h> |
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#include <asm/mach/map.h> |
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#include <asm/mach/irq.h> |
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#include "map.h" |
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#include "bast.h" |
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#include "simtec.h" |
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static void simtec_nor_vpp(struct platform_device *pdev, int vpp) |
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{ |
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unsigned int val; |
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val = __raw_readb(BAST_VA_CTRL3); |
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printk(KERN_DEBUG "%s(%d)\n", __func__, vpp); |
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if (vpp) |
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val |= BAST_CPLD_CTRL3_ROMWEN; |
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else |
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val &= ~BAST_CPLD_CTRL3_ROMWEN; |
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__raw_writeb(val, BAST_VA_CTRL3); |
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} |
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static struct physmap_flash_data simtec_nor_pdata = { |
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.width = 2, |
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.set_vpp = simtec_nor_vpp, |
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.nr_parts = 0, |
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}; |
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static struct resource simtec_nor_resource[] = { |
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[0] = DEFINE_RES_MEM(S3C2410_CS1 + 0x4000000, SZ_8M), |
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}; |
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static struct platform_device simtec_device_nor = { |
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.name = "physmap-flash", |
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.id = -1, |
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.num_resources = ARRAY_SIZE(simtec_nor_resource), |
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.resource = simtec_nor_resource, |
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.dev = { |
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.platform_data = &simtec_nor_pdata, |
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}, |
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}; |
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void __init nor_simtec_init(void) |
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{ |
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int ret; |
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ret = platform_device_register(&simtec_device_nor); |
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if (ret < 0) |
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printk(KERN_ERR "failed to register physmap-flash device\n"); |
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else |
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simtec_nor_vpp(NULL, 1); |
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}
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