Add NAND environment support for PPC440EPx Sequoia NAND boot config
Patch by Stefan Roese, 12 Sep 2006
diff --git a/include/configs/sequoia.h b/include/configs/sequoia.h
index d3fcc03..639765d 100644
--- a/include/configs/sequoia.h
+++ b/include/configs/sequoia.h
@@ -69,14 +69,9 @@
/*-----------------------------------------------------------------------
* Initial RAM & stack pointer
*----------------------------------------------------------------------*/
-#if 0
/* 440EPx/440GRx have 16KB of internal SRAM, so no need for D-Cache */
-#define CFG_INIT_RAM_DCACHE 1 /* d-cache as init ram */
-#define CFG_INIT_RAM_ADDR 0x70000000 /* DCache */
-#else
#define CFG_INIT_RAM_OCM 1 /* OCM as init ram */
#define CFG_INIT_RAM_ADDR CFG_OCM_BASE /* OCM */
-#endif
#define CFG_INIT_RAM_END (4 << 10)
#define CFG_GBL_DATA_SIZE 256 /* num bytes initial data */
@@ -98,18 +93,11 @@
/*-----------------------------------------------------------------------
* Environment
*----------------------------------------------------------------------*/
-/*
- * Define here the location of the environment variables (FLASH or EEPROM).
- * Note: DENX encourages to use redundant environment in FLASH.
- */
-#if 1 /* test-only */
+#if !defined(CONFIG_NAND_U_BOOT) && !defined(CONFIG_NAND_SPL)
#define CFG_ENV_IS_IN_FLASH 1 /* use FLASH for environment vars */
#else
#define CFG_ENV_IS_IN_NAND 1 /* use NAND for environment vars */
#endif
-#if 0
-#define CFG_ENV_IS_IN_EEPROM 1 /* use EEPROM for environment vars */
-#endif
/*-----------------------------------------------------------------------
* FLASH related
@@ -189,8 +177,12 @@
#undef CFG_NAND_4_ADDR_CYCLE /* No fourth addr used (<=32MB) */
#ifdef CFG_ENV_IS_IN_NAND
-#define CFG_ENV_SIZE 0x4000
-#define CFG_ENV_OFFSET (CFG_NAND_U_BOOT_OFFS + CFG_NAND_U_BOOT_SIZE)
+/*
+ * For NAND booting the environment is embedded in the U-Boot image. Please take
+ * look at the file board/amcc/sequoia/u-boot-nand.lds for details.
+ */
+#define CFG_ENV_SIZE CFG_NAND_BLOCK_SIZE
+#define CFG_ENV_OFFSET (CFG_NAND_U_BOOT_OFFS + CFG_ENV_SIZE)
#define CFG_ENV_OFFSET_REDUND (CFG_ENV_OFFSET + CFG_ENV_SIZE)
#endif
@@ -214,11 +206,6 @@
#define CFG_EEPROM_PAGE_WRITE_BITS 3
#define CFG_EEPROM_PAGE_WRITE_DELAY_MS 10
-#ifdef CFG_ENV_IS_IN_EEPROM
-#define CFG_ENV_SIZE 0x200 /* Size of Environment vars */
-#define CFG_ENV_OFFSET 0x0
-#endif /* CFG_ENV_IS_IN_EEPROM */
-
/* I2C SYSMON (LM75, AD7414 is almost compatible) */
#define CONFIG_DTT_LM75 1 /* ON Semi's LM75 */
#define CONFIG_DTT_AD7414 1 /* use AD7414 */