From mboxrd@z Thu Jan 1 00:00:00 1970 From: Steve Sakoman Date: Fri, 08 Oct 2010 14:49:29 -0700 Subject: [U-Boot] env_mmc: Fix crashing bug encountered after enabling ARM relocation Message-ID: <1286574569.2105.1.camel@quadra> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de The crash was occuring in env_relocate because it was being called prior to mmc_initialize. This patch moves the MMC initialization earlier in the init process. This patch also cleans up the env_relocate_spec code in env_mmc.c Developed jointly with Stefano Babic Signed-off-by: Steve Sakoman --- diff --git a/arch/arm/lib/board.c b/arch/arm/lib/board.c index 5f2dfd0..0e2f129 100644 --- a/arch/arm/lib/board.c +++ b/arch/arm/lib/board.c @@ -779,6 +779,11 @@ void board_init_r (gd_t *id, ulong dest_addr) onenand_init(); #endif +#ifdef CONFIG_GENERIC_MMC + puts ("MMC: "); + mmc_initialize (bd); +#endif + #ifdef CONFIG_HAS_DATAFLASH AT91F_DataflashInit(); dataflash_print_info(); @@ -854,11 +859,6 @@ extern void davinci_eth_set_mac_addr (const u_int8_t *addr); board_late_init (); #endif -#ifdef CONFIG_GENERIC_MMC - puts ("MMC: "); - mmc_initialize (gd->bd); -#endif - #ifdef CONFIG_BITBANGMII bb_miiphy_init(); #endif diff --git a/common/env_mmc.c b/common/env_mmc.c index cc288d4..d443ff5 100644 --- a/common/env_mmc.c +++ b/common/env_mmc.c @@ -129,18 +129,21 @@ inline int read_env(struct mmc *mmc, unsigned long size, void env_relocate_spec(void) { #if !defined(ENV_IS_EMBEDDED) + char buf[CONFIG_ENV_SIZE]; + struct mmc *mmc = find_mmc_device(CONFIG_SYS_MMC_ENV_DEV); - if (init_mmc_for_env(mmc)) + if (init_mmc_for_env(mmc)) { + use_default(); return; + } - if (read_env(mmc, CONFIG_ENV_SIZE, CONFIG_ENV_OFFSET, env_ptr)) - return use_default(); - - if (crc32(0, env_ptr->data, ENV_SIZE) != env_ptr->crc) - return use_default(); + if (read_env(mmc, CONFIG_ENV_SIZE, CONFIG_ENV_OFFSET, buf)) { + use_default(); + return; + } - gd->env_valid = 1; + env_import(buf, 1); #endif }