mirrors/u-boot
0
0
Fork 0
mirror of https://github.com/u-boot/u-boot.git synced 2024-11-28 15:13:31 +08:00
Code Issues Packages Projects Releases Wiki Activity

env: use cache line aligned memory for flash read

Browse Source 
Use memalign() with ARCH_DMA_MINALIGN to allocate read buffers.
This is required because, flash drivers may use DMA for read operations
and may have to invalidate the buffer before read.

Signed-off-by: Ravi Babu <ravibabu@ti.com>
Signed-off-by: Vignesh R <vigneshr@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Jagan Teki <jteki@openedev.com>
Tested-by: Jagan Teki <jteki@openedev.com>
This commit is contained in:
Ravi Babu 2015-08-17 13:29:49 +05:30 committed by Jagan Teki
parent 156e96f038
commit 7dd0174467
1 changed files with 6 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
common/env_sf.c
View File

@ -79,7 +79,7 @@ int saveenv(void)
if (CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE) {
saved_size = CONFIG_ENV_SECT_SIZE - CONFIG_ENV_SIZE;
saved_offset = env_new_offset + CONFIG_ENV_SIZE;
saved_buffer = malloc(saved_size);
saved_buffer = memalign(ARCH_DMA_MINALIGN, saved_size);
if (!saved_buffer) {
ret = 1;
goto done;
@ -142,9 +142,10 @@ void env_relocate_spec(void)
env_t *tmp_env2 = NULL;
env_t *ep = NULL;
tmp_env1 = (env_t *)malloc(CONFIG_ENV_SIZE);
tmp_env2 = (env_t *)malloc(CONFIG_ENV_SIZE);
tmp_env1 = (env_t *)memalign(ARCH_DMA_MINALIGN,
CONFIG_ENV_SIZE);
tmp_env2 = (env_t *)memalign(ARCH_DMA_MINALIGN,
CONFIG_ENV_SIZE);
if (!tmp_env1 || !tmp_env2) {
set_default_env("!malloc() failed");
goto out;
@ -295,7 +296,7 @@ void env_relocate_spec(void)
int ret;
char *buf = NULL;
buf = (char *)malloc(CONFIG_ENV_SIZE);
buf = (char *)memalign(ARCH_DMA_MINALIGN, CONFIG_ENV_SIZE);
env_flash = spi_flash_probe(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS,
CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE);
if (!env_flash) {