[U-Boot] [PATCH 7/9] KM: add the KM_UBI_PART_BOOT_OPTS #define

[Valentin Longchamp]

This define can be used if the ubi boot partition (defined for all
Keymile boards with KM_UBI_PARTITION_NAME_BOOT #define to ubi0) needs
some additionnal boot options.

This is the case for the kmp204x boards since u-boot does not support
NAND Flash subpage accesses on this platform, an additionnal argument
that defines the VID offstet must be given to the kernel.

The UBI cmd line option now looks like this "ubi.mtd=ubi0,2048" on this
platform.

Signed-off-by: Valentin Longchamp <valentin.longchamp at keymile.com>
---

 include/configs/km/keymile-common.h | 10 ++++++++--
 include/configs/km/kmp204x-common.h |  4 ++++
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/include/configs/km/keymile-common.h b/include/configs/km/keymile-common.h
index 2a15ad4..a4e0f7c 100644
--- a/include/configs/km/keymile-common.h
+++ b/include/configs/km/keymile-common.h
@@ -99,11 +99,16 @@
 #define CONFIG_KM_UBI_PARTITION_NAME_BOOT	"ubi0"
 #endif /* CONFIG_KM_UBI_PARTITION_NAME_BOOT */
 
+#ifndef CONFIG_KM_UBI_PART_BOOT_OPTS
+#define CONFIG_KM_UBI_PART_BOOT_OPTS		""
+#endif /* CONFIG_KM_UBI_PART_BOOT_OPTS */
+
 #ifndef CONFIG_KM_UBI_PARTITION_NAME_APP
 /* one flash chip only called boot */
 /* boot: CONFIG_KM_UBI_PARTITION_NAME_BOOT */
 # define CONFIG_KM_UBI_LINUX_MTD					\
-	"ubi.mtd=" CONFIG_KM_UBI_PARTITION_NAME_BOOT
+	"ubi.mtd=" CONFIG_KM_UBI_PARTITION_NAME_BOOT			\
+	CONFIG_KM_UBI_PART_BOOT_OPTS
 # define CONFIG_KM_DEV_ENV_FLASH_BOOT_UBI				\
 	"ubiattach=ubi part " CONFIG_KM_UBI_PARTITION_NAME_BOOT "\0"
 #else /* CONFIG_KM_UBI_PARTITION_NAME_APP */
@@ -111,7 +116,8 @@
 /* boot: CONFIG_KM_UBI_PARTITION_NAME_BOOT */
 /* app:  CONFIG_KM_UBI_PARTITION_NAME_APP */
 # define CONFIG_KM_UBI_LINUX_MTD					\
-	"ubi.mtd=" CONFIG_KM_UBI_PARTITION_NAME_BOOT " "		\
+	"ubi.mtd=" CONFIG_KM_UBI_PARTITION_NAME_BOOT			\
+	CONFIG_KM_UBI_PART_BOOT_OPTS " "				\
 	"ubi.mtd=" CONFIG_KM_UBI_PARTITION_NAME_APP
 # define CONFIG_KM_DEV_ENV_FLASH_BOOT_UBI				\
 	"ubiattach=if test ${boot_bank} -eq 0; then; "			\
diff --git a/include/configs/km/kmp204x-common.h b/include/configs/km/kmp204x-common.h
index b4242e5..935aa7e 100644
--- a/include/configs/km/kmp204x-common.h
+++ b/include/configs/km/kmp204x-common.h
@@ -15,6 +15,10 @@
 
 #define CONFIG_KM_DEF_NETDEV	"netdev=eth0\0"
 
+/* an additionnal option is required for UBI as subpage access is
+ * supported in u-boot */
+#define CONFIG_KM_UBI_PART_BOOT_OPTS		",2048"
+
 #define CONFIG_NAND_ECC_BCH
 
 /* common KM defines */
-- 
1.8.0.1