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Diffstat (limited to 'arch/arm/mach-s3c/simtec-nor.c')
-rw-r--r--arch/arm/mach-s3c/simtec-nor.c74
1 files changed, 74 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c/simtec-nor.c b/arch/arm/mach-s3c/simtec-nor.c
new file mode 100644
index 000000000000..a6fba056a747
--- /dev/null
+++ b/arch/arm/mach-s3c/simtec-nor.c
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (c) 2008 Simtec Electronics
+// http://armlinux.simtec.co.uk/
+// Ben Dooks <ben@simtec.co.uk>
+//
+// Simtec NOR mapping
+
+#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 "map.h"
+
+#include "bast.h"
+#include "simtec.h"
+
+static void simtec_nor_vpp(struct platform_device *pdev, int vpp)
+{
+ unsigned int val;
+
+ 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);
+}
+
+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] = DEFINE_RES_MEM(S3C2410_CS1 + 0x4000000, SZ_8M),
+};
+
+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);
+}