arm/km: enable FDT for km_kirwkood
This consists of:
a) Defining the addresses, enabling fdtsupport [arm]
b) Defining "cramfsloadfdt" [arm,powerpc => common]
c) Adding the FDT address to bootm [arm,powerpc => common]
d) Defining "tftpfdt" in ramfs-,develop- [arm,powerpc >= common]
This should work with 3.10 kernels, whether loaded through TFTP
(with rootfs either through NFS or TFTP-ramfs) or from the NAND.
The machid was left unchanged, this should keep compatibility with both
older and newer kernels.
Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
Signed-off-by: Gerlando Falauto <gerlando.falauto@keymile.com>
Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
Acked-by: Valentin Longchamp <valentin.longchamp@keymile.com>
diff --git a/include/configs/km/keymile-common.h b/include/configs/km/keymile-common.h
index 2a15ad4..cb53dbd 100644
--- a/include/configs/km/keymile-common.h
+++ b/include/configs/km/keymile-common.h
@@ -220,6 +220,7 @@
CONFIG_KM_DEF_ENV_FLASH_BOOT \
CONFIG_KM_DEF_ENV_CONSTANTS \
"altbootcmd=run bootcmd\0" \
+ "boot=bootm ${load_addr_r} - ${fdt_addr_r}\0" \
"bootcmd=km_checkbidhwk && " \
"setenv bootcmd \'if km_checktestboot; then; " \
"setenv boot_bank ${test_bank}; else; " \
@@ -229,6 +230,10 @@
"run ${subbootcmds}; reset\' && " \
"saveenv && saveenv && boot\0" \
"bootlimit=3\0" \
+ "cramfsloadfdt=" \
+ "cramfsload ${fdt_addr_r} " \
+ "fdt_0x${IVM_BoardId}_0x${IVM_HWKey}.dtb\0" \
+ "fdt_addr_r="__stringify(CONFIG_KM_FDT_ADDR) "\0" \
"init=/sbin/init-overlay.sh\0" \
"load_addr_r="__stringify(CONFIG_KM_KERNEL_ADDR) "\0" \
"load=tftpboot ${load_addr_r} ${u-boot}\0" \
diff --git a/include/configs/km/km-powerpc.h b/include/configs/km/km-powerpc.h
index 2cebb2b..b03fdd9 100644
--- a/include/configs/km/km-powerpc.h
+++ b/include/configs/km/km-powerpc.h
@@ -70,11 +70,6 @@
#define CONFIG_KM_DEF_BOOT_ARGS_CPU ""
#define CONFIG_KM_DEF_ENV_CPU \
- "boot=bootm ${load_addr_r} - ${fdt_addr_r}\0" \
- "cramfsloadfdt=" \
- "cramfsload ${fdt_addr_r} " \
- "fdt_0x${IVM_BoardId}_0x${IVM_HWKey}.dtb\0" \
- "fdt_addr_r=" __stringify(CONFIG_KM_FDT_ADDR) "\0" \
"u-boot="__stringify(CONFIG_HOSTNAME) "/u-boot.bin\0" \
"update=" \
"protect off " __stringify(BOOTFLASH_START) " +${filesize} && "\
diff --git a/include/configs/km/km_arm.h b/include/configs/km/km_arm.h
index 6278e76..a5cc1c5 100644
--- a/include/configs/km/km_arm.h
+++ b/include/configs/km/km_arm.h
@@ -70,7 +70,8 @@
#define CONFIG_KM_PHRAM 0x17F000
#define CONFIG_KM_CRAMFS_ADDR 0x2400000
-#define CONFIG_KM_KERNEL_ADDR 0x2000000 /* 4096KBytes */
+#define CONFIG_KM_KERNEL_ADDR 0x2000000 /* 3098KBytes */
+#define CONFIG_KM_FDT_ADDR 0x23E0000 /* 128KBytes */
/* architecture specific default bootargs */
#define CONFIG_KM_DEF_BOOT_ARGS_CPU \
@@ -78,8 +79,6 @@
" boardid=0x${IVM_BoardId} hwkey=0x${IVM_HWKey}"
#define CONFIG_KM_DEF_ENV_CPU \
- "boot=bootm ${load_addr_r} - -\0" \
- "cramfsloadfdt=true\0" \
"u-boot="__stringify(CONFIG_HOSTNAME) "/u-boot.kwb\0" \
CONFIG_KM_UPDATE_UBOOT \
""
@@ -87,6 +86,9 @@
#define CONFIG_SKIP_LOWLEVEL_INIT /* disable board lowlevel_init */
#define CONFIG_MISC_INIT_R
+/* Pass open firmware flat tree */
+#define CONFIG_OF_LIBFDT
+
/*
* NS16550 Configuration
*/