[U-Boot] [PATCH v2 2/4] Environment support for Flex-OneNAND

[Rohit Hagargundgi]

Define and use CONFIG_ENV_ADDR_FLEX and CONFIG_ENV_SIZE_FLEX
for storing environment variables.

Signed-off-by: Rohit Hagargundgi <h.rohit at samsung.com>
---
 common/env_onenand.c      |   10 ++++++++++
 include/configs/apollon.h |    2 ++
 2 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/common/env_onenand.c b/common/env_onenand.c
index dbccc79..cd44781 100644
--- a/common/env_onenand.c
+++ b/common/env_onenand.c
@@ -58,11 +58,14 @@ uchar env_get_char_spec(int index)
 
 void env_relocate_spec(void)
 {
+	struct onenand_chip *this = &onenand_chip;
 	unsigned long env_addr;
 	int use_default = 0;
 	size_t retlen;
 
 	env_addr = CONFIG_ENV_ADDR;
+	if (FLEXONENAND(this))
+		env_addr = CONFIG_ENV_ADDR_FLEX;
 
 	/* Check OneNAND exist */
 	if (onenand_mtd.writesize)
@@ -89,6 +92,7 @@ void env_relocate_spec(void)
 
 int saveenv(void)
 {
+	struct onenand_chip *this = &onenand_chip;
 	unsigned long env_addr = CONFIG_ENV_ADDR;
 	struct erase_info instr = {
 		.callback	= NULL,
@@ -96,6 +100,12 @@ int saveenv(void)
 	size_t retlen;
 
 	instr.len = CONFIG_ENV_SIZE;
+	if (FLEXONENAND(this)) {
+		env_addr = CONFIG_ENV_ADDR_FLEX;
+		instr.len = CONFIG_ENV_SIZE_FLEX;
+		instr.len <<= onenand_mtd.eraseregions[0].numblocks == 1 ?
+				1 : 0;
+	}
 	instr.addr = env_addr;
 	instr.mtd = &onenand_mtd;
 	if (onenand_erase(&onenand_mtd, &instr)) {
diff --git a/include/configs/apollon.h b/include/configs/apollon.h
index dff47fc..0fcb22b 100644
--- a/include/configs/apollon.h
+++ b/include/configs/apollon.h
@@ -76,6 +76,7 @@
  * Size of malloc() pool
  */
 #define	CONFIG_ENV_SIZE SZ_128K	/* Total Size of Environment Sector */
+#define CONFIG_ENV_SIZE_FLEX SZ_256K
 #define	CONFIG_SYS_MALLOC_LEN	(CONFIG_ENV_SIZE + SZ_1M)
 /* bytes reserved for initial data */
 #define	CONFIG_SYS_GBL_DATA_SIZE	128
@@ -256,6 +257,7 @@
 #define	CONFIG_SYS_ONENAND_BASE	0x00000000
 #define	CONFIG_ENV_IS_IN_ONENAND	1
 #define CONFIG_ENV_ADDR		0x00020000
+#define CONFIG_ENV_ADDR_FLEX	0x00040000
 
 #ifdef CONFIG_SYS_USE_UBI
 #define CONFIG_JFFS2_CMDLINE
-- 
1.5.4.3