diff options
Diffstat (limited to 'target/linux/amazon-2.6/files/drivers/mtd/maps/amazon.c')
| -rw-r--r-- | target/linux/amazon-2.6/files/drivers/mtd/maps/amazon.c | 166 |
1 files changed, 0 insertions, 166 deletions
diff --git a/target/linux/amazon-2.6/files/drivers/mtd/maps/amazon.c b/target/linux/amazon-2.6/files/drivers/mtd/maps/amazon.c deleted file mode 100644 index 3e7dc4f583..0000000000 --- a/target/linux/amazon-2.6/files/drivers/mtd/maps/amazon.c +++ /dev/null @@ -1,166 +0,0 @@ -/* - * Handle mapping of the flash memory access routines - * on Amazon based devices. - * - * Copyright(C) 2004 peng.liu@infineon.com - * - * This code is GPLed - * - */ -// 000005:fchang 2005/6/2 Modified by Bingtao to double check if the EBU is enabled/disabled -// 506231:tc.chen 2005/06/23 increase firmware partition size form 192KB to 256KB -// 050701:linmars 2005/07/01 fix flash size wrong alignment after increase firmware partition -// 165001:henryhsu 2005/8/18 Remove the support for Intel flash because of 2.1 not enough rootfs partition size -// 165001:henryhsu 2005/9/7 Rolback to support INtel flash -// 509071:tc.chen 2005/09/07 Reduced flash writing time -// 511046:linmars 2005/11/04 change bootloader size from 128 into 64 -// 511241:linmars 2005/11/24 merge TaiChen's IRM patch - -// copyright 2005 infineon - -// copyright 2007 john crispin <blogic@openwrt.org> -// copyright 2007 felix fietkau <nbd@openwrt.org> - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <asm/io.h> - -#include <linux/init.h> -#include <linux/mtd/mtd.h> -#include <linux/mtd/map.h> -#include <linux/mtd/partitions.h> -#include <linux/mtd/cfi.h> -#include <linux/mutex.h> -#include <asm/amazon/amazon.h> - -#define AMAZON_PCI_ARB_CTL_ALT 0xb100205c -#define AMAZON_MTD_REG32( addr ) (*(volatile u32 *)(addr)) - - -static struct map_info amazon_map = { - .name = "AMAZON_FLASH", - .bankwidth = 2, - .size = 0x400000, -}; - -static map_word amazon_read16(struct map_info * map, unsigned long ofs) -{ - map_word temp; - ofs ^= 2; - temp.x[0] = *((__u16 *) (map->virt + ofs)); - return temp; -} - -static void amazon_write16(struct map_info *map, map_word d, unsigned long adr) -{ - adr ^= 2; - *((__u16 *) (map->virt + adr)) = d.x[0]; -} - -void amazon_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len) -{ - u8 *p; - u8 *to_8; - ssize_t l = len; - from = (unsigned long) (from + map->virt); - p = (u8 *) from; - to_8 = (u8 *) to; - while(len--){ - *to_8++ = *p++; - } -} - -void amazon_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len) -{ - u8 *p = (u8*) from; - u8 *to_8; - to += (unsigned long) map->virt; - to_8 = (u8*)to; - while(len--){ - *p++ = *to_8++; - } -} - -#define UBOOT_SIZE 0x40000 - -static struct mtd_partition amazon_partitions[3] = { - { - name:"U-Boot", /* U-Boot firmware */ - offset:0x00000000, - size:UBOOT_SIZE , /* 128k */ - }, - { - name:"kernel", /* firmware */ - offset:UBOOT_SIZE, - size:0x00100000, /* 192K */ - }, - { - name:"rootfs", /* default partition */ - offset:0x00200000, - size:0x00200000, - }, -}; - - -unsigned long flash_start = 0x13000000; -unsigned long flash_size = 0x800000; -unsigned long uImage_size = 0x10000d; - -int find_uImage_size(unsigned long start_offset){ - unsigned long temp; - - printk("trying to find uImage and its size\n"); - amazon_copy_from(&amazon_map, &temp, start_offset + 12, 4); - printk("kernel size is %d \n", temp + 0x40); - return temp + 0x40; -} - -int __init init_amazon_mtd(void) -{ - int ret = 0; - struct mtd_info *mymtd = NULL; - struct mtd_partition *parts = NULL; - - *AMAZON_EBU_BUSCON0 = 0x1d7ff; - - amazon_map.read = amazon_read16; - amazon_map.write = amazon_write16; - amazon_map.copy_from = amazon_copy_from; - amazon_map.copy_to = amazon_copy_to; - - amazon_map.phys = flash_start; - amazon_map.virt = ioremap_nocache(flash_start, flash_size); - - if (!amazon_map.virt) { - printk(KERN_WARNING "Failed to ioremap!\n"); - return -EIO; - } - - mymtd = (struct mtd_info *) do_map_probe("cfi_probe", &amazon_map); - if (!mymtd) { - iounmap(amazon_map.virt); - printk("probing failed\n"); - return -ENXIO; - } - - mymtd->owner = THIS_MODULE; - parts = &amazon_partitions[0]; - amazon_partitions[2].offset = UBOOT_SIZE + find_uImage_size(amazon_partitions[1].offset); - amazon_partitions[1].size = mymtd->size - amazon_partitions[1].offset - (2 * mymtd->erasesize); - amazon_partitions[2].size = mymtd->size - amazon_partitions[2].offset - (2 * mymtd->erasesize); - add_mtd_partitions(mymtd, parts, 3); - return 0; -} - -static void __exit cleanup_amazon_mtd(void) -{ - /* FIXME! */ -} - -module_init(init_amazon_mtd); -module_exit(cleanup_amazon_mtd); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("john crispin blogic@openwrt.org"); -MODULE_DESCRIPTION("MTD map driver for AMAZON boards"); |