env_mmc: align buffers using ALLOC_CACHE_ALIGN_BUFFER

This allows MMC drivers to perform cache flusing on the bufffers
without issue.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Cc: Andy Fleming <afleming@gmail.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>

diff --git a/common/env_mmc.c b/common/env_mmc.c
index 0c58ae19b21e973533d5ed19b4e1ce216fbcb4b8..be2f2be205a49b37d1069c5a9519598886fb2c11 100644 (file)
--- a/common/env_mmc.c
+++ b/common/env_mmc.c
@@ -95,7 +95,7 @@ static inline int write_env(struct mmc *mmc, unsigned long size,
 
 int saveenv(void)
 {
-       env_t   env_new;
+       ALLOC_CACHE_ALIGN_BUFFER(env_t, env_new, 1);
        ssize_t len;
        char    *res;
        struct mmc *mmc = find_mmc_device(CONFIG_SYS_MMC_ENV_DEV);
@@ -104,16 +104,16 @@ int saveenv(void)
        if (init_mmc_for_env(mmc) || mmc_get_env_addr(mmc, &offset))
                return 1;
 
-       res = (char *)&env_new.data;
+       res = (char *)&env_new->data;
        len = hexport_r(&env_htab, '\0', &res, ENV_SIZE, 0, NULL);
        if (len < 0) {
                error("Cannot export environment: errno = %d\n", errno);
                return 1;
        }
 
-       env_new.crc = crc32(0, env_new.data, ENV_SIZE);
+       env_new->crc = crc32(0, &env_new->data[0], ENV_SIZE);
        printf("Writing to MMC(%d)... ", CONFIG_SYS_MMC_ENV_DEV);
-       if (write_env(mmc, CONFIG_ENV_SIZE, offset, (u_char *)&env_new)) {
+       if (write_env(mmc, CONFIG_ENV_SIZE, offset, (u_char *)env_new)) {
                puts("failed\n");
                return 1;
        }
@@ -140,7 +140,7 @@ static 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];
+       ALLOC_CACHE_ALIGN_BUFFER(char, buf, CONFIG_ENV_SIZE);
        struct mmc *mmc = find_mmc_device(CONFIG_SYS_MMC_ENV_DEV);
        u32 offset;