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ar71xx: add hard_cfg offset detection for rb2011 support - fixes wlan on some newer devices 

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 36631
lede-17.01
Felix Fietkau 2013-05-13 19:13:33 +00:00
parent 2c5a5d8736
commit 144cfb65a4
3 changed files with 51 additions and 7 deletions
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31
target/linux/ar71xx/files/arch/mips/ath79/mach-rb2011.c
View File

@ -39,11 +39,10 @@
#define RB2011_GPIO_NAND_NCE 14
#define RB_ROUTERBOOT_OFFSET 0x0000
#define RB_ROUTERBOOT_SIZE 0xb000
#define RB_HARD_CFG_OFFSET 0xb000
#define RB_ROUTERBOOT_MIN_SIZE 0xb000
#define RB_HARD_CFG_SIZE 0x1000
#define RB_BIOS_OFFSET 0xd000
#define RB_BIOS_SIZE 0x2000
#define RB_BIOS_SIZE 0x1000
#define RB_SOFT_CFG_OFFSET 0xf000
#define RB_SOFT_CFG_SIZE 0x1000
@ -53,11 +52,9 @@ static struct mtd_partition rb2011_spi_partitions[] = {
{
.name = "routerboot",
.offset = RB_ROUTERBOOT_OFFSET,
.size = RB_ROUTERBOOT_SIZE,
.mask_flags = MTD_WRITEABLE,
}, {
.name = "hard_config",
.offset = RB_HARD_CFG_OFFSET,
.size = RB_HARD_CFG_SIZE,
.mask_flags = MTD_WRITEABLE,
}, {
@ -67,11 +64,29 @@ static struct mtd_partition rb2011_spi_partitions[] = {
.mask_flags = MTD_WRITEABLE,
}, {
.name = "soft_config",
.offset = RB_SOFT_CFG_OFFSET,
.size = RB_SOFT_CFG_SIZE,
}
};
static void __init rb2011_init_partitions(void)
{
u8 *addr = (u8 *) KSEG1ADDR(0x1f000000);
u32 next = RB_ROUTERBOOT_MIN_SIZE;
if (routerboot_find_magic(addr, 0x10000, &next, true))
printk(KERN_ERR "Warning: could not find a valid RouterBOOT hard config\n");
rb2011_spi_partitions[0].size = next;
rb2011_spi_partitions[1].offset = next;
next = RB_BIOS_OFFSET + RB_BIOS_SIZE;
if (routerboot_find_magic(addr, 0x10000, &next, false))
printk(KERN_ERR "Warning: could not find a valid RouterBOOT soft config\n");
rb2011_spi_partitions[3].offset = next;
}
static struct mtd_partition rb2011_nand_partitions[] = {
{
.name = "booter",
@ -125,13 +140,14 @@ static struct mdio_board_info rb2011_mdio0_info[] = {
static void __init rb2011_wlan_init(void)
{
u8 *hard_cfg = (u8 *) KSEG1ADDR(0x1f000000 + RB_HARD_CFG_OFFSET);
u8 *hard_cfg = (u8 *) KSEG1ADDR(0x1f000000);
u16 tag_len;
u8 *tag;
char *art_buf;
u8 wlan_mac[ETH_ALEN];
int err;
hard_cfg += rb2011_spi_partitions[1].offset;
err = routerboot_find_tag(hard_cfg, RB_HARD_CFG_SIZE, RB_ID_WLAN_DATA,
&tag, &tag_len);
if (err) {
@ -211,6 +227,7 @@ static void __init rb2011_gpio_init(void)
static void __init rb2011_setup(void)
{
rb2011_init_partitions();
rb2011_gpio_init();
ath79_register_m25p80(&rb2011_spi_flash_data);

20
target/linux/ar71xx/files/arch/mips/ath79/routerboot.c
View File

@ -29,6 +29,26 @@ static u16 get_u16(void *buf)
return (u16) p[1] + ((u16) p[0] << 8);
}
__init int
routerboot_find_magic(u8 *buf, unsigned int buflen, u32 *offset, bool hard)
{
u32 magic_ref = hard ? RB_MAGIC_HARD : RB_MAGIC_SOFT;
u32 magic;
u32 cur = *offset;
while (cur < buflen) {
magic = get_u32(buf + cur);
if (magic == magic_ref) {
*offset = cur;
return 0;
}
cur += 0x1000;
}
return -ENOENT;
}
__init int
routerboot_find_tag(u8 *buf, unsigned int buflen, u16 tag_id,
u8 **tag_data, u16 *tag_len)

7
target/linux/ar71xx/files/arch/mips/ath79/routerboot.h
View File

@ -14,6 +14,7 @@
#ifdef CONFIG_ATH79_ROUTERBOOT
int routerboot_find_tag(u8 *buf, unsigned int buflen, u16 tag_id,
u8 **tag_data, u16 *tag_len);
int routerboot_find_magic(u8 *buf, unsigned int buflen, u32 *offset, bool hard);
#else
static inline int
routerboot_find_tag(u8 *buf, unsigned int buflen, u16 tag_id,
@ -21,6 +22,12 @@ routerboot_find_tag(u8 *buf, unsigned int buflen, u16 tag_id,
{
return -ENOENT;
}
static inline int
routerboot_find_magic(u8 *buf, unsigned int buflen, u32 *offset, bool hard)
{
return -ENOENT;
}
#endif
#endif /* _ATH79_ROUTERBOOT_H_ */