[PATCH v1 1/3] mmc: core: Add raw_boot_mult field to mmc_ext_csd
From: Dmitry Osipenko <digetx@gmail.com>
Date: 2021-03-27 21:24:21
Also in:
linux-block, linux-tegra
Subsystem:
multimedia card (mmc), secure digital (sd) and sdio subsystem, the rest · Maintainers:
Ulf Hansson, Linus Torvalds
Bootloader of NVIDIA Tegra devices linearizes the boot0/boot1/main partitions into a single virtual space, and thus, all partition addresses are shifted by the size of boot0 + boot1 partitions. The offset needs to be known in order to find the EFI entry on internal EMMC storage of Tegra devices. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> --- drivers/mmc/core/mmc.c | 2 ++ include/linux/mmc/card.h | 1 + 2 files changed, 3 insertions(+)
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 8741271d3971..ed29f6076472 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c@@ -417,6 +417,8 @@ static int mmc_decode_ext_csd(struct mmc_card *card, u8 *ext_csd) ext_csd[EXT_CSD_ERASE_TIMEOUT_MULT]; card->ext_csd.raw_hc_erase_grp_size = ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE]; + card->ext_csd.raw_boot_mult = + ext_csd[EXT_CSD_BOOT_MULT]; if (card->ext_csd.rev >= 3) { u8 sa_shift = ext_csd[EXT_CSD_S_A_TIMEOUT]; card->ext_csd.part_config = ext_csd[EXT_CSD_PART_CONFIG];
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
index f9ad35dd6012..720e2a1ac1cd 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h@@ -109,6 +109,7 @@ struct mmc_ext_csd { u8 raw_hc_erase_gap_size; /* 221 */ u8 raw_erase_timeout_mult; /* 223 */ u8 raw_hc_erase_grp_size; /* 224 */ + u8 raw_boot_mult; /* 226 */ u8 raw_sec_trim_mult; /* 229 */ u8 raw_sec_erase_mult; /* 230 */ u8 raw_sec_feature_support;/* 231 */
--
2.30.2