From 9dd6c43103f12ece08732fbc4661efc4b17b4d18 Mon Sep 17 00:00:00 2001
From: cshore <cshore@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Sun, 28 Nov 2010 22:04:40 +0000
Subject: bcm63xx: Add board id override fixup.
Add a fixup for the kernel to check the bcm tag of the image for a boardid in
the information1 field, and use that instead of the supplied one by cfe. This
is triggered by a + at the start of the information1 field.
Also modify the image generation to generate apropriately tagged images.
Signed-off-by: Jonas Gorski <jonas.gorski+openwrt@gmail.com>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@24189 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
target/linux/brcm63xx/image/Makefile | 16 ++++--
.../patches-2.6.35/410-boardid_fixup.patch | 62 ++++++++++++++++++++++
2 files changed, 75 insertions(+), 3 deletions(-)
create mode 100644 target/linux/brcm63xx/patches-2.6.35/410-boardid_fixup.patch
(limited to 'target/linux/brcm63xx')
diff --git a/target/linux/brcm63xx/image/Makefile b/target/linux/brcm63xx/image/Makefile
index 588745cd2..589e47c56 100644
--- a/target/linux/brcm63xx/image/Makefile
+++ b/target/linux/brcm63xx/image/Makefile
@@ -37,7 +37,17 @@ define Image/Build/CFE
--output $(BIN_DIR)/openwrt-$(4)-$(1)-cfe.bin \
--boardid $(2) --chipid $(3) --entry $(KERNEL_ENTRY) \
--load-addr $(LOADADDR) --rsa-signature "$(5)" \
- --info1 "$(call Image/LimitName16,$(4))" --info2 $(1) \
+ --info1 "-$(call Image/LimitName16,$(4))" --info2 $(1) \
+ $(6) $(7) $(8) $(9)
+endef
+
+define Image/Build/CFEFIXUP
+ # Generate the tagged image
+ $(STAGING_DIR_HOST)/bin/imagetag -i $(KDIR)/vmlinux.lzma.cfe -f $(KDIR)/root.$(1) \
+ --output $(BIN_DIR)/openwrt-$(4)-$(1)-cfe.bin \
+ --boardid $(2) --chipid $(3) --entry $(KERNEL_ENTRY) \
+ --load-addr $(LOADADDR) --rsa-signature "$(5)" \
+ --info1 "+$(call Image/LimitName16,$(4))" --info2 $(1) \
$(6) $(7) $(8) $(9)
endef
@@ -48,7 +58,7 @@ define Image/Build/CFEAGPF
--boardid $(2) --chipid $(3) --entry $(LOADADDR) \
--load-addr $(LOADADDR) --tag-version 8 \
--signature2 IMAGE --block-size 0x20000 \
- --image-offset $(4) --info1 "$(call Image/LimitName16,$(5))" --info2 $(1)
+ --image-offset $(4) --info1 "-$(call Image/LimitName16,$(5))" --info2 $(1)
endef
define Image/Build/RG100A
@@ -57,7 +67,7 @@ define Image/Build/RG100A
--output $(BIN_DIR)/openwrt-$(5)-$(1)-cfe.bin \
--boardid $(2) --chipid $(3) --entry $(LOADADDR) \
--load-addr $(LOADADDR) --block-size 0x20000 \
- --image-offset $(4) --info1 "$(call Image/LimitName16,$(5))" --info2 $(1)
+ --image-offset $(4) --info1 "-$(call Image/LimitName16,$(5))" --info2 $(1)
endef
define Image/Build/RedBoot
diff --git a/target/linux/brcm63xx/patches-2.6.35/410-boardid_fixup.patch b/target/linux/brcm63xx/patches-2.6.35/410-boardid_fixup.patch
new file mode 100644
index 000000000..db1fac027
--- /dev/null
+++ b/target/linux/brcm63xx/patches-2.6.35/410-boardid_fixup.patch
@@ -0,0 +1,62 @@
+--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
++++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
+@@ -35,6 +35,7 @@
+ #include <bcm63xx_dev_usb_udc.h>
+ #include <bcm63xx_dev_spi.h>
+ #include <board_bcm963xx.h>
++#include <bcm_tag.h>
+
+ #define PFX "board_bcm963xx: "
+
+@@ -44,6 +45,9 @@
+ #define NB4_SPI_GPIO_CLK 6
+ #define NB4_74HC64_GPIO(X) (NB4_74X164_GPIO_BASE + (X))
+
++#define CFE_OFFSET_64K 0x10000
++#define CFE_OFFSET_128K 0x20000
++
+ static struct bcm963xx_nvram nvram;
+ static unsigned int mac_addr_used;
+ static struct board_info board;
+@@ -1508,6 +1512,29 @@ static int board_get_mac_address(u8 *mac
+ return 0;
+ }
+
++static void __init boardid_fixup(u8 *boot_addr)
++{
++ struct bcm_tag *tag = (struct bcm_tag *)(boot_addr + CFE_OFFSET_64K);
++
++ /* check if bcm_tag is at 64k offset */
++ if (strncmp(nvram.name, tag->boardid, BOARDID_LEN) != 0) {
++ /* else try 128k */
++ tag = (struct bcm_tag *)(boot_addr + CFE_OFFSET_128K);
++ if (strncmp(nvram.name, tag->boardid, BOARDID_LEN) != 0) {
++ /* No tag found */
++ printk(KERN_DEBUG "No bcm_tag found!\n");
++ return;
++ }
++ }
++ /* check if we should override the boardid */
++ if (tag->information1[0] != '+')
++ return;
++
++ strncpy(nvram.name, &tag->information1[1], BOARDID_LEN);
++
++ printk(KERN_INFO "Overriding boardid with '%s'\n", nvram.name);
++}
++
+ /*
+ * early init callback, read nvram data from flash and checksum it
+ */
+@@ -1559,6 +1586,11 @@ void __init board_prom_init(void)
+ /* Fixup broken nb4 board name */
+ nb4_nvram_fixup();
+
++ if (strcmp(cfe_version, "unknown") != 0) {
++ /* cfe present */
++ boardid_fixup(boot_addr);
++ }
++
+ /* find board by name */
+ for (i = 0; i < ARRAY_SIZE(bcm963xx_boards); i++) {
+ if (strncmp(nvram.name, bcm963xx_boards[i]->name,
--
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