-diff -urN linux-2.6.17/drivers/mtd/maps/rdc3210.c linux-2.6.17.new/drivers/mtd/maps/rdc3210.c
---- linux-2.6.17/drivers/mtd/maps/rdc3210.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.17.new/drivers/mtd/maps/rdc3210.c 2006-09-24 22:55:20.000000000 +0200
-@@ -0,0 +1,211 @@
-+/*******************************************************************
-+ * Simple Flash mapping for RDC3210 *
-+ * *
-+ * 2005.03.23 *
-+ * Dante Su (dante_su@gemtek.com.tw) *
-+ * Copyright (C) 2005 Gemtek Corporation *
-+ *******************************************************************/
-+
-+#include <linux/module.h>
-+#include <linux/slab.h>
-+#include <linux/types.h>
-+#include <linux/kernel.h>
-+#include <asm/io.h>
-+#include <linux/mtd/mtd.h>
-+#include <linux/mtd/map.h>
-+#include <linux/mtd/partitions.h>
-+#include <linux/config.h>
-+
-+#define WINDOW_ADDR 0xFFC00000
-+#define WINDOW_SIZE 0x00400000
-+
-+#define BUSWIDTH 2
-+
-+static struct mtd_info *rdc3210_mtd_info;
-+
-+__u8 rdc3210_map_read8(struct map_info *map, unsigned long ofs)
-+{
-+ return *(__u8 *)(map->map_priv_1 + ofs);
-+}
-+
-+__u16 rdc3210_map_read16(struct map_info *map, unsigned long ofs)
-+{
-+ return *(__u16 *)(map->map_priv_1 + ofs);
-+}
-+
-+__u32 rdc3210_map_read32(struct map_info *map, unsigned long ofs)
-+{
-+ return *(__u32 *)(map->map_priv_1 + ofs);
-+}
-+
-+void rdc3210_map_write8(struct map_info *map, __u8 d, unsigned long adr)
-+{
-+ *(__u8 *)(map->map_priv_1 + adr) = d;
-+}
-+
-+void rdc3210_map_write16(struct map_info *map, __u16 d, unsigned long adr)
-+{
-+ *(__u16 *)(map->map_priv_1 + adr) = d;
-+}
-+
-+void rdc3210_map_write32(struct map_info *map, __u32 d, unsigned long adr)
-+{
-+ *(__u32 *)(map->map_priv_1 + adr) = d;
-+}
-+
-+void rdc3210_map_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
-+{
-+ int i;
-+ u16 *dst = (u16 *)(to);
-+ u16 *src = (u16 *)(map->map_priv_1 + from);
-+
-+ for(i = 0; i < (len / 2); ++i)
-+ dst[i] = src[i];
-+
-+ if(len & 1)
-+ {
-+ printk("# WARNNING!!! rdc3210_map_copy_from has odd length\n");
-+ //dst[len - 1] = B0(src[i]);
-+ }
-+}
-+
-+void rdc3210_map_copy_to(struct map_info *map, void *to, unsigned long from, ssize_t len)
-+{
-+ int i;
-+ u16 *dst = (u16 *)(map->map_priv_1 + to);
-+ u16 *src = (u16 *)(from);
-+
-+ for(i = 0; i < (len / 2); ++i)
-+ dst[i] = src[i];
-+
-+ if(len & 1)
-+ {
-+ printk("# WARNNING!!! rdc3210_map_copy_from has odd length\n");
-+ //dst[len - 1] = B0(src[i]);
-+ }
-+}
-+
-+static struct map_info rdc3210_map =
-+{
-+ .name = "RDC3210 Flash",
-+ .size = WINDOW_SIZE,
-+ .bankwidth = BUSWIDTH,
-+ .phys = WINDOW_ADDR,
-+};
-+
-+/* Dante: This is the default static mapping, however this is nothing but a hint. (Say dynamic mapping) */
-+static struct mtd_partition rdc3210_parts[] =
-+{
-+ { .name = "linux", .offset = 0, .size = 0x003C0000 }, /* 3840 KB = (Kernel + ROMFS) = (768 KB + 3072 KB) */
-+ { .name = "romfs", .offset = 0x000C0000, .size = 0x00300000 }, /* 3072 KB */
-+ { .name = "nvram", .offset = 0x003C0000, .size = 0x00010000 }, /* 64 KB */
-+ { .name = "factory", .offset = 0x003D0000, .size = 0x00010000 }, /* 64 KB */
-+ { .name = "bootldr", .offset = 0x003E0000, .size = 0x00020000 }, /* 128 KB */
-+};
-+
-+static int __init rdc3210_mtd_init(void)
-+{
-+ printk(KERN_NOTICE "flash device: 0x%x at 0x%x\n", WINDOW_SIZE, WINDOW_ADDR);
-+
-+ rdc3210_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE);
-+
-+ if (!rdc3210_map.virt)
-+ {
-+ printk("Failed to ioremap\n");
-+ return -EIO;
-+ }
-+
-+ simple_map_init(&rdc3210_map);
-+
-+ rdc3210_mtd_info = do_map_probe("cfi_probe", &rdc3210_map);
-+ /* Dante: This is for fixed map */
-+ if (rdc3210_mtd_info)
-+ {
-+ rdc3210_mtd_info->owner = THIS_MODULE;
-+ add_mtd_partitions(rdc3210_mtd_info, rdc3210_parts, sizeof(rdc3210_parts)/sizeof(rdc3210_parts[0]));
-+ return 0;
-+ }
-+ /* Dante: This is for dynamic mapping */
-+#if 0
-+ if (rdc3210_mtd_info)
-+ { // Dante
-+ unsigned int tmp;
-+ gt_imghdr_t *hdr;
-+
-+ hdr = (gt_imghdr_t *)(rdc3210_map.virt);
-+
-+ if(memcmp(hdr->magic, GTIMG_MAGIC, 4))
-+ {
-+ printk("Invalid MAGIC for Firmware Image!!!\n");
-+ return -EIO;
-+ }
-+
-+ /* 1. Adjust Redboot */
-+ tmp = flashdrv_get_size() - rdc3210_parts[4].size;
-+ rdc3210_parts[4].offset = flashdrv_get_sector_addr(flashdrv_get_sector(tmp));
-+ rdc3210_parts[4].size = flashdrv_get_size() - rdc3210_parts[4].offset;
-+
-+ /* 2. Adjust NVRAM */
-+ tmp -= rdc3210_parts[3].size;
-+ rdc3210_parts[3].offset = flashdrv_get_sector_addr(flashdrv_get_sector(tmp));
-+ rdc3210_parts[3].size = rdc3210_parts[4].offset - rdc3210_parts[3].offset;
-+
-+ /* 3. Adjust Factory Default */
-+ tmp -= rdc3210_parts[2].size;
-+ rdc3210_parts[2].offset = flashdrv_get_sector_addr(flashdrv_get_sector(tmp));
-+ rdc3210_parts[2].size = rdc3210_parts[3].offset - rdc3210_parts[2].offset;
-+
-+ /* 4. Adjust Linux (Kernel + ROMFS) */
-+ rdc3210_parts[0].size = rdc3210_parts[2].offset - rdc3210_parts[0].offset;
-+
-+ /* 5. Adjust ROMFS */
-+ tmp = hdr->kernelsz + sizeof(gt_imghdr_t);
-+ rdc3210_parts[1].offset = rdc3210_parts[0].offset + (((tmp / 32) + ((tmp % 32) ? 1 : 0)) * 32);
-+ rdc3210_parts[1].size = rdc3210_parts[2].offset - rdc3210_parts[1].offset;
-+
-+ /* 1. Adjust Redboot */
-+ tmp = flashdrv_get_size() - rdc3210_parts[3].size;
-+ rdc3210_parts[3].offset = flashdrv_get_sector_addr(flashdrv_get_sector(tmp));
-+ rdc3210_parts[3].size = flashdrv_get_size() - rdc3210_parts[3].offset;
-+
-+ /* 2. Adjust NVRAM */
-+ tmp -= rdc3210_parts[2].size;
-+ rdc3210_parts[2].offset = flashdrv_get_sector_addr(flashdrv_get_sector(tmp));
-+ rdc3210_parts[2].size = rdc3210_parts[3].offset - rdc3210_parts[2].offset;
-+
-+ /* 4. Adjust Linux (Kernel + ROMFS) */
-+ rdc3210_parts[0].size = rdc3210_parts[2].offset - rdc3210_parts[0].offset;
-+
-+ /* 5. Adjust ROMFS */
-+ tmp = hdr->kernelsz + sizeof(gt_imghdr_t);
-+ rdc3210_parts[1].offset = rdc3210_parts[0].offset + (((tmp / 32) + ((tmp % 32) ? 1 : 0)) * 32);
-+ rdc3210_parts[1].size = rdc3210_parts[2].offset - rdc3210_parts[1].offset;
-+
-+ rdc3210_mtd_info->owner = THIS_MODULE;
-+ add_mtd_partitions(rdc3210_mtd_info, rdc3210_parts, sizeof(rdc3210_parts)/sizeof(rdc3210_parts[0]));
-+ return 0;
-+ }
-+#endif
-+ iounmap((void *)rdc3210_map.virt);
-+ return -ENXIO;
-+}
-+
-+static void __exit rdc3210_mtd_exit(void)
-+{
-+ if (rdc3210_mtd_info)
-+ {
-+ del_mtd_partitions(rdc3210_mtd_info);
-+ map_destroy(rdc3210_mtd_info);
-+ }
-+
-+ if (rdc3210_map.virt)
-+ {
-+ iounmap(rdc3210_map.virt);
-+ rdc3210_map.virt = 0;
-+ }
-+}
-+
-+module_init(rdc3210_mtd_init);
-+module_exit(rdc3210_mtd_exit);
-+MODULE_LICENSE("GPL");
-+
projects / openwrt.git / blobdiff