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| author | Heinrich Schuchardt <xypron.glpk@gmx.de> | 2020-03-30 07:24:19 +0200 |
|---|---|---|
| committer | Peng Fan <peng.fan@nxp.com> | 2020-04-22 20:41:55 +0800 |
| commit | 0469d846364ae54fc380a813cc4c3e9e19bdc99a (patch) | |
| tree | d93f62a4625b8d53415ea44ced16b04e214674f2 /include/mmc.h | |
| parent | d5210e4589294b4c356e7c2ac598cda8d738aec8 (diff) | |
| download | u-boot-0469d846364ae54fc380a813cc4c3e9e19bdc99a.zip u-boot-0469d846364ae54fc380a813cc4c3e9e19bdc99a.tar.gz u-boot-0469d846364ae54fc380a813cc4c3e9e19bdc99a.tar.bz2 | |
cmd: mmc: provide boot area protection command
Provide command 'mmc wp' to power on write protect boot areas on eMMC
devices.
The B_PWR_WP_EN bit in the extended CSD register BOOT_WP is set. The boot
area are write protected until the next power cycle occurs.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Diffstat (limited to 'include/mmc.h')
| -rw-r--r-- | include/mmc.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/mmc.h b/include/mmc.h index 85fc349..e92e920 100644 --- a/include/mmc.h +++ b/include/mmc.h @@ -907,6 +907,15 @@ struct blk_desc *mmc_get_blk_desc(struct mmc *mmc); */ int mmc_send_ext_csd(struct mmc *mmc, u8 *ext_csd); +/** + * mmc_boot_wp() - power on write protect boot partitions + * + * The boot partitions are write protected until the next power cycle. + * + * Return: 0 for success + */ +int mmc_boot_wp(struct mmc *mmc); + static inline enum dma_data_direction mmc_get_dma_dir(struct mmc_data *data) { return data->flags & MMC_DATA_WRITE ? DMA_TO_DEVICE : DMA_FROM_DEVICE; |