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

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 36631

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 60baae9b79b4f18ff76f60a94408559ab119eab0..46b8a053d3fb869e9cec4a74900217a2ae4d46d1 100644 (file)
--- 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 3c6f9aaeb371133087e5b5f9a5848e7348142aeb..1cb1f9d4ebdf3702897c7ee09e2f2e7d83afa876 100644 (file)
--- a/target/linux/ar71xx/files/arch/mips/ath79/routerboot.c
+++ b/target/linux/ar71xx/files/arch/mips/ath79/routerboot.c
@@ -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)

diff --git a/target/linux/ar71xx/files/arch/mips/ath79/routerboot.h b/target/linux/ar71xx/files/arch/mips/ath79/routerboot.h
index 9a4dde59ec948d66059bc1632df3616a1c8d982d..2489e0aee0f1e18b641ec340911942a866e2cb7c 100644 (file)
--- 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_ */