mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2025-04-21 12:27:27 +03:00
strip the kernel version suffix from target directories, except for brcm-2.4 (the -2.4 will be included in the board name here). CONFIG_LINUX_<ver>_<board> becomes CONFIG_TARGET_<board>, same for profiles.
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@8653 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd
166
target/linux/amazon/files/drivers/mtd/maps/amazon.c
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166
target/linux/amazon/files/drivers/mtd/maps/amazon.c
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/*
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* Handle mapping of the flash memory access routines
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* on Amazon based devices.
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*
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* Copyright(C) 2004 peng.liu@infineon.com
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*
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* This code is GPLed
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*
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*/
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// 000005:fchang 2005/6/2 Modified by Bingtao to double check if the EBU is enabled/disabled
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// 506231:tc.chen 2005/06/23 increase firmware partition size form 192KB to 256KB
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// 050701:linmars 2005/07/01 fix flash size wrong alignment after increase firmware partition
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// 165001:henryhsu 2005/8/18 Remove the support for Intel flash because of 2.1 not enough rootfs partition size
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// 165001:henryhsu 2005/9/7 Rolback to support INtel flash
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// 509071:tc.chen 2005/09/07 Reduced flash writing time
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// 511046:linmars 2005/11/04 change bootloader size from 128 into 64
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// 511241:linmars 2005/11/24 merge TaiChen's IRM patch
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// copyright 2005 infineon
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// copyright 2007 john crispin <blogic@openwrt.org>
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// copyright 2007 felix fietkau <nbd@openwrt.org>
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#include <linux/module.h>
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <asm/io.h>
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#include <linux/init.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/partitions.h>
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#include <linux/mtd/cfi.h>
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#include <linux/mutex.h>
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#include <asm/amazon/amazon.h>
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#define AMAZON_PCI_ARB_CTL_ALT 0xb100205c
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#define AMAZON_MTD_REG32( addr ) (*(volatile u32 *)(addr))
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static struct map_info amazon_map = {
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.name = "AMAZON_FLASH",
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.bankwidth = 2,
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.size = 0x400000,
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};
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static map_word amazon_read16(struct map_info * map, unsigned long ofs)
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{
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map_word temp;
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ofs ^= 2;
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temp.x[0] = *((__u16 *) (map->virt + ofs));
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return temp;
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}
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static void amazon_write16(struct map_info *map, map_word d, unsigned long adr)
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{
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adr ^= 2;
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*((__u16 *) (map->virt + adr)) = d.x[0];
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}
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void amazon_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
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{
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u8 *p;
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u8 *to_8;
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ssize_t l = len;
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from = (unsigned long) (from + map->virt);
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p = (u8 *) from;
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to_8 = (u8 *) to;
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while(len--){
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*to_8++ = *p++;
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}
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}
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void amazon_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
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{
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u8 *p = (u8*) from;
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u8 *to_8;
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to += (unsigned long) map->virt;
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to_8 = (u8*)to;
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while(len--){
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*p++ = *to_8++;
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}
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}
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#define UBOOT_SIZE 0x40000
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static struct mtd_partition amazon_partitions[3] = {
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{
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name:"U-Boot", /* U-Boot firmware */
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offset:0x00000000,
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size:UBOOT_SIZE , /* 128k */
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},
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{
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name:"kernel", /* firmware */
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offset:UBOOT_SIZE,
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size:0x00100000, /* 192K */
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},
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{
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name:"rootfs", /* default partition */
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offset:0x00200000,
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size:0x00200000,
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},
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};
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unsigned long flash_start = 0x13000000;
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unsigned long flash_size = 0x800000;
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unsigned long uImage_size = 0x10000d;
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int find_uImage_size(unsigned long start_offset){
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unsigned long temp;
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printk("trying to find uImage and its size\n");
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amazon_copy_from(&amazon_map, &temp, start_offset + 12, 4);
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printk("kernel size is %d \n", temp + 0x40);
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return temp + 0x40;
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}
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int __init init_amazon_mtd(void)
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{
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int ret = 0;
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struct mtd_info *mymtd = NULL;
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struct mtd_partition *parts = NULL;
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*AMAZON_EBU_BUSCON0 = 0x1d7ff;
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amazon_map.read = amazon_read16;
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amazon_map.write = amazon_write16;
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amazon_map.copy_from = amazon_copy_from;
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amazon_map.copy_to = amazon_copy_to;
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amazon_map.phys = flash_start;
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amazon_map.virt = ioremap_nocache(flash_start, flash_size);
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if (!amazon_map.virt) {
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printk(KERN_WARNING "Failed to ioremap!\n");
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return -EIO;
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}
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mymtd = (struct mtd_info *) do_map_probe("cfi_probe", &amazon_map);
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if (!mymtd) {
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iounmap(amazon_map.virt);
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printk("probing failed\n");
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return -ENXIO;
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}
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mymtd->owner = THIS_MODULE;
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parts = &amazon_partitions[0];
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amazon_partitions[2].offset = UBOOT_SIZE + find_uImage_size(amazon_partitions[1].offset);
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amazon_partitions[1].size = mymtd->size - amazon_partitions[1].offset - (2 * mymtd->erasesize);
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amazon_partitions[2].size = mymtd->size - amazon_partitions[2].offset - (2 * mymtd->erasesize);
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add_mtd_partitions(mymtd, parts, 3);
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return 0;
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}
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static void __exit cleanup_amazon_mtd(void)
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{
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/* FIXME! */
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}
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module_init(init_amazon_mtd);
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module_exit(cleanup_amazon_mtd);
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MODULE_LICENSE("GPL");
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MODULE_AUTHOR("john crispin blogic@openwrt.org");
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MODULE_DESCRIPTION("MTD map driver for AMAZON boards");
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