Loading drivers/mmc/core/mmc.c +13 −0 Original line number Diff line number Diff line Loading @@ -596,6 +596,19 @@ static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd) card->ext_csd.rel_param = ext_csd[EXT_CSD_WR_REL_PARAM]; card->ext_csd.rst_n_function = ext_csd[EXT_CSD_RST_N_FUNCTION]; /* * Some eMMC vendors violate eMMC 5.0 spec and set * REL_WR_SEC_C register to 0x10 to indicate the * ability of RPMB throughput improvement thus lead * to failure when TZ module write data to RPMB * partition. So check bit[4] of EXT_CSD[166] and * if it is not set then change value of REL_WR_SEC_C * to 0x1 directly ignoring value of EXT_CSD[222]. */ if (!(card->ext_csd.rel_param & EXT_CSD_WR_REL_PARAM_EN_RPMB_REL_WR)) card->ext_csd.rel_sectors = 0x1; /* * RPMB regions are defined in multiples of 128K. */ Loading Loading
drivers/mmc/core/mmc.c +13 −0 Original line number Diff line number Diff line Loading @@ -596,6 +596,19 @@ static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd) card->ext_csd.rel_param = ext_csd[EXT_CSD_WR_REL_PARAM]; card->ext_csd.rst_n_function = ext_csd[EXT_CSD_RST_N_FUNCTION]; /* * Some eMMC vendors violate eMMC 5.0 spec and set * REL_WR_SEC_C register to 0x10 to indicate the * ability of RPMB throughput improvement thus lead * to failure when TZ module write data to RPMB * partition. So check bit[4] of EXT_CSD[166] and * if it is not set then change value of REL_WR_SEC_C * to 0x1 directly ignoring value of EXT_CSD[222]. */ if (!(card->ext_csd.rel_param & EXT_CSD_WR_REL_PARAM_EN_RPMB_REL_WR)) card->ext_csd.rel_sectors = 0x1; /* * RPMB regions are defined in multiples of 128K. */ Loading
