This version fixes pointed issues. Is it better?
commit 03f4cf26950e498d83c21fd040977db9633d77e2 Author: Nikita V. Youshchenko yoush@debian.org Date: Tue Sep 2 07:51:05 2008 +0400
ads5121: support for running from RAM
This patch makes it possible to start u-boot from RAM on ads5121 board.
It does two simple things: - skips initialization of RAM controller if already running from RAM, - makes CONFIG_ENV_ADDR absolute, not relative to CFG_MONITOR_BASE
Signed-off-by: Nikita V. Youshchenko yoush@debian.org
diff --git a/board/ads5121/ads5121.c b/board/ads5121/ads5121.c index deaa292..644d85e 100644 --- a/board/ads5121/ads5121.c +++ b/board/ads5121/ads5121.c @@ -120,8 +120,9 @@ phys_size_t initdram (int board_type) */ long int fixed_sdram (void) { - volatile immap_t *im = (immap_t *) CFG_IMMR; u32 msize = CFG_DDR_SIZE * 1024 * 1024; +#if CFG_MONITOR_BASE >= CFG_FLASH_BASE + volatile immap_t *im = (immap_t *) CFG_IMMR; u32 msize_log2 = __ilog2 (msize); u32 i;
@@ -203,7 +204,7 @@ long int fixed_sdram (void) /* Start MDDRC */ im->mddrc.ddr_time_config0 = CFG_MDDRC_TIME_CFG0_RUN; im->mddrc.ddr_sys_config = CFG_MDDRC_SYS_CFG_RUN; - +#endif return msize; }
diff --git a/include/configs/ads5121.h b/include/configs/ads5121.h index d6f7e02..4086ce9 100644 --- a/include/configs/ads5121.h +++ b/include/configs/ads5121.h @@ -322,7 +322,7 @@ */ #define CONFIG_ENV_IS_IN_FLASH 1 /* This has to be a multiple of the Flash sector size */ -#define CONFIG_ENV_ADDR (CFG_MONITOR_BASE + CFG_MONITOR_LEN) +#define CONFIG_ENV_ADDR 0xfff40000 #define CONFIG_ENV_SIZE 0x2000 #ifdef CONFIG_BKUP_FLASH #define CONFIG_ENV_SECT_SIZE 0x20000 /* one sector (256K) for env */