korg/mmc-utils
0
0
Fork 0
mirror of https://git.kernel.org/pub/scm/utils/mmc/mmc-utils.git synced 2024-11-14 21:43:30 +08:00
Code Issues Packages Projects Releases Wiki Activity

mmc-utils: ffu: Simplify ext_csd bytes parsing

Browse Source 
The ext_csd register has this habbit of linking a contiguous set of
bytes into one meaningful double-word.  It does that where the least
significant value is in the lower index - hence little-endian.

Signed-off-by: Avri Altman <avri.altman@wdc.com>
Link: https://lore.kernel.org/r/20230625103814.105-4-avri.altman@wdc.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Avri Altman 2023-06-25 13:38:11 +03:00 committed by Ulf Hansson
parent 6c8944a900
commit a1b594ca73
1 changed files with 2 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
mmc_cmds.c
View File

@ -2880,10 +2880,7 @@ int do_ffu(int nargs, char **argv)
}
/* set CMD ARG */
arg = ext_csd[EXT_CSD_FFU_ARG_0] |
ext_csd[EXT_CSD_FFU_ARG_1] << 8 |
ext_csd[EXT_CSD_FFU_ARG_2] << 16 |
ext_csd[EXT_CSD_FFU_ARG_3] << 24;
arg = htole32(*((__u32 *)&ext_csd[EXT_CSD_FFU_ARG_0]));
/* prepare multi_cmd for FFU based on cmd to be used */
@ -2952,10 +2949,7 @@ do_retry:
}
/* Test if we need to restart the download */
sect_done = ext_csd[EXT_CSD_NUM_OF_FW_SEC_PROG_0] |
ext_csd[EXT_CSD_NUM_OF_FW_SEC_PROG_1] << 8 |
ext_csd[EXT_CSD_NUM_OF_FW_SEC_PROG_2] << 16 |
ext_csd[EXT_CSD_NUM_OF_FW_SEC_PROG_3] << 24;
sect_done = htole32(*((__u32 *)&ext_csd[EXT_CSD_NUM_OF_FW_SEC_PROG_0]));
/* By spec, host should re-start download from the first sector if sect_done is 0 */
if (sect_done == 0) {
if (retry--) {