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authorFelix Fietkau <nbd@openwrt.org>2013-05-13 19:13:33 +0000
committerFelix Fietkau <nbd@openwrt.org>2013-05-13 19:13:33 +0000
commit144cfb65a478a57ae0c551df27ee6d152b644799 (patch)
tree3a4482d185afa2a3e84c55f0e7e433ed16e7cf61 /target/linux/ar71xx
parent2c5a5d87363791b7f6221de8fff0ade3be21c0ea (diff)
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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
Diffstat (limited to 'target/linux/ar71xx')
-rw-r--r--target/linux/ar71xx/files/arch/mips/ath79/mach-rb2011.c31
-rw-r--r--target/linux/ar71xx/files/arch/mips/ath79/routerboot.c20
-rw-r--r--target/linux/ar71xx/files/arch/mips/ath79/routerboot.h7
3 files changed, 51 insertions, 7 deletions
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-rb2011.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-rb2011.c
index 60baae9b79..46b8a053d3 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/mach-rb2011.c
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-rb2011.c
@@ -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);
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/routerboot.c b/target/linux/ar71xx/files/arch/mips/ath79/routerboot.c
index 3c6f9aaeb3..1cb1f9d4eb 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/routerboot.c
+++ b/target/linux/ar71xx/files/arch/mips/ath79/routerboot.c
@@ -30,6 +30,26 @@ static u16 get_u16(void *buf)
}
__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)
{
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/routerboot.h b/target/linux/ar71xx/files/arch/mips/ath79/routerboot.h
index 9a4dde59ec..2489e0aee0 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/routerboot.h
+++ b/target/linux/ar71xx/files/arch/mips/ath79/routerboot.h
@@ -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_ */