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Use myloader parser in the adm5120 mtd driver. Do not use EXPORT_SYMBOL in myloader parser

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SVN-Revision: 6737
This commit is contained in:
Florian Fainelli 2007-03-28 09:10:46 +00:00
parent d8bf22859b
commit e1b66f44ea
2 changed files with 77 additions and 64 deletions
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125
target/linux/adm5120-2.6/files/drivers/mtd/maps/adm5120_mtd.c
View File

@ -49,11 +49,13 @@
#include <linux/squashfs_fs.h>
#include <linux/jffs2.h>
#include <linux/crc32.h>
#ifdef CONFIG_SSB
#include <linux/ssb/ssb.h>
#endif
#include <asm/io.h>
#include <asm/mach-adm5120/myloader.h>
#include <asm/mach-adm5120/adm5120_info.h>
extern int parse_myloader_partitions(struct mtd_info *master,
struct mtd_partition **pparts,
unsigned long origin);
#define TRX_MAGIC 0x30524448 /* "HDR0" */
#define TRX_VERSION 1
@ -76,9 +78,6 @@ struct trx_header {
#define WINDOW_SIZE 0x400000
#define BUSWIDTH 2
#ifdef CONFIG_SSB
extern struct ssb_bus ssb;
#endif
static struct mtd_info *adm5120_mtd;
static struct map_info adm5120_map = {
@ -90,7 +89,7 @@ static struct map_info adm5120_map = {
#ifdef CONFIG_MTD_PARTITIONS
static struct mtd_partition adm5120_parts[] = {
static struct mtd_partition adm5120_cfe_parts[] = {
{ name: "cfe", offset: 0, size: 0, mask_flags: MTD_WRITEABLE, },
{ name: "linux", offset: 0, size: 0, },
{ name: "rootfs", offset: 0, size: 0, },
@ -325,91 +324,78 @@ init_mtd_partitions(struct mtd_info *mtd, size_t size)
return NULL;
/* boot loader */
adm5120_parts[0].offset = 0;
adm5120_parts[0].size = cfe_size;
adm5120_cfe_parts[0].offset = 0;
adm5120_cfe_parts[0].size = cfe_size;
/* nvram */
if (cfe_size != 384 * 1024) {
adm5120_parts[3].offset = size - ROUNDUP(NVRAM_SPACE, mtd->erasesize);
adm5120_parts[3].size = ROUNDUP(NVRAM_SPACE, mtd->erasesize);
adm5120_cfe_parts[3].offset = size - ROUNDUP(NVRAM_SPACE, mtd->erasesize);
adm5120_cfe_parts[3].size = ROUNDUP(NVRAM_SPACE, mtd->erasesize);
} else {
/* nvram (old 128kb config partition on netgear wgt634u) */
adm5120_parts[3].offset = adm5120_parts[0].size;
adm5120_parts[3].size = ROUNDUP(NVRAM_SPACE, mtd->erasesize);
adm5120_cfe_parts[3].offset = adm5120_cfe_parts[0].size;
adm5120_cfe_parts[3].size = ROUNDUP(NVRAM_SPACE, mtd->erasesize);
}
/* linux (kernel and rootfs) */
if (cfe_size != 384 * 1024) {
adm5120_parts[1].offset = adm5120_parts[0].size;
adm5120_parts[1].size = adm5120_parts[3].offset -
adm5120_parts[1].offset;
adm5120_cfe_parts[1].offset = adm5120_cfe_parts[0].size;
adm5120_cfe_parts[1].size = adm5120_cfe_parts[3].offset -
adm5120_cfe_parts[1].offset;
} else {
/* do not count the elf loader, which is on one block */
adm5120_parts[1].offset = adm5120_parts[0].size +
adm5120_parts[3].size + mtd->erasesize;
adm5120_parts[1].size = size -
adm5120_parts[0].size -
(2*adm5120_parts[3].size) -
adm5120_cfe_parts[1].offset = adm5120_cfe_parts[0].size +
adm5120_cfe_parts[3].size + mtd->erasesize;
adm5120_cfe_parts[1].size = size -
adm5120_cfe_parts[0].size -
(2*adm5120_cfe_parts[3].size) -
mtd->erasesize;
}
/* find and size rootfs */
if (find_root(mtd,size,&adm5120_parts[2])==0) {
if (find_root(mtd,size,&adm5120_cfe_parts[2])==0) {
/* entirely jffs2 */
adm5120_parts[4].name = NULL;
adm5120_parts[2].size = size - adm5120_parts[2].offset -
adm5120_parts[3].size;
adm5120_cfe_parts[4].name = NULL;
adm5120_cfe_parts[2].size = size - adm5120_cfe_parts[2].offset -
adm5120_cfe_parts[3].size;
} else {
/* legacy setup */
/* calculate leftover flash, and assign it to the jffs2 partition */
if (cfe_size != 384 * 1024) {
adm5120_parts[4].offset = adm5120_parts[2].offset +
adm5120_parts[2].size;
if ((adm5120_parts[4].offset % mtd->erasesize) > 0) {
adm5120_parts[4].offset += mtd->erasesize -
(adm5120_parts[4].offset % mtd->erasesize);
adm5120_cfe_parts[4].offset = adm5120_cfe_parts[2].offset +
adm5120_cfe_parts[2].size;
if ((adm5120_cfe_parts[4].offset % mtd->erasesize) > 0) {
adm5120_cfe_parts[4].offset += mtd->erasesize -
(adm5120_cfe_parts[4].offset % mtd->erasesize);
}
adm5120_parts[4].size = adm5120_parts[3].offset -
adm5120_parts[4].offset;
adm5120_cfe_parts[4].size = adm5120_cfe_parts[3].offset -
adm5120_cfe_parts[4].offset;
} else {
adm5120_parts[4].offset = adm5120_parts[2].offset +
adm5120_parts[2].size;
if ((adm5120_parts[4].offset % mtd->erasesize) > 0) {
adm5120_parts[4].offset += mtd->erasesize -
(adm5120_parts[4].offset % mtd->erasesize);
adm5120_cfe_parts[4].offset = adm5120_cfe_parts[2].offset +
adm5120_cfe_parts[2].size;
if ((adm5120_cfe_parts[4].offset % mtd->erasesize) > 0) {
adm5120_cfe_parts[4].offset += mtd->erasesize -
(adm5120_cfe_parts[4].offset % mtd->erasesize);
}
adm5120_parts[4].size = size - adm5120_parts[3].size -
adm5120_parts[4].offset;
adm5120_cfe_parts[4].size = size - adm5120_cfe_parts[3].size -
adm5120_cfe_parts[4].offset;
}
}
return adm5120_parts;
return adm5120_cfe_parts;
}
#endif
int __init init_adm5120_map(void)
{
#ifdef CONFIG_SSB
struct ssb_mipscore *mcore = &ssb.mipscore;
#endif
size_t size;
int ret = 0;
#ifdef CONFIG_MTD_PARTITIONS
#if defined (CONFIG_MTD_PARTITIONS) || (CONFIG_MTD_MYLOADER_PARTS)
struct mtd_partition *parts;
int i;
int i, parsed_nr_parts = 0;
#endif
#ifdef CONFIG_SSB
u32 window = mcore->flash_window;
u32 window_size = mcore->flash_window_size;
printk("adm5120 : flash init: 0x%08x 0x%08x\n", window, window_size);
adm5120_map.phys = window;
adm5120_map.size = window_size;
adm5120_map.virt = ioremap_nocache(window, window_size);
#else
printk("adm5120 : flash init : 0x%08x 0x%08x\n", WINDOW_ADDR, WINDOW_SIZE);
adm5120_map.virt = ioremap_nocache(WINDOW_ADDR, WINDOW_SIZE);
#endif
if (!adm5120_map.virt) {
printk("Failed to ioremap\n");
@ -430,13 +416,42 @@ int __init init_adm5120_map(void)
printk(KERN_NOTICE "Flash device: 0x%x at 0x%x\n", size, WINDOW_ADDR);
#ifdef CONFIG_MTD_PARTITIONS
if (adm5120_info.boot_loader == BOOT_LOADER_CFE)
{
printk(KERN_NOTICE "adm5120 : using CFE flash mapping\n");
parts = init_mtd_partitions(adm5120_mtd, size);
for (i = 0; parts[i].name; i++);
ret = add_mtd_partitions(adm5120_mtd, parts, i);
if (ret) {
printk(KERN_ERR "Flash: add_mtd_partitions failed\n");
goto fail;
}
}
#endif
#ifdef CONFIG_MTD_MYLOADER_PARTS
if (adm5120_info.boot_loader == BOOT_LOADER_MYLOADER)
{
printk(KERN_NOTICE "adm5120 : using MyLoader flash mapping\n");
char *part_type;
if (parsed_nr_parts == 0) {
ret = parse_myloader_partitions(adm5120_mtd, &parts, 0);
if (ret > 0) {
part_type ="MyLoader";
parsed_nr_parts = ret;
}
}
ret = add_mtd_partitions(adm5120_mtd, parts, parsed_nr_parts);
if (ret) {
printk(KERN_ERR "Flash: add_mtd_partitions failed\n");
goto fail;
}
}
#endif
return 0;

4
target/linux/adm5120-2.6/files/drivers/mtd/myloader.c
View File

@ -40,7 +40,7 @@
#define NAME_PARTITION_TABLE "Partition Table"
#define BLOCK_LEN_MIN 0x10000
static int parse_myloader_partitions(struct mtd_info *master,
int parse_myloader_partitions(struct mtd_info *master,
struct mtd_partition **pparts,
unsigned long origin)
{
@ -171,8 +171,6 @@ static void __exit mylo_mtd_parser_exit(void)
module_init(mylo_mtd_parser_init);
module_exit(mylo_mtd_parser_exit);
EXPORT_SYMBOL_GPL(parse_myloader_partitions);
MODULE_AUTHOR("Gabor Juhos <juhosg@freemail.hu>");
MODULE_DESCRIPTION("Parsing code for MyLoader partition tables");
MODULE_LICENSE("GPL");