From: Dmitry Osipenko <digetx@gmail.com>
To: "Jens Axboe" <axboe@kernel.dk>,
"Thierry Reding" <thierry.reding@gmail.com>,
"Jonathan Hunter" <jonathanh@nvidia.com>,
"Michał Mirosław" <mirq-linux@rere.qmqm.pl>,
"David Heidelberg" <david@ixit.cz>,
"Peter Geis" <pgwipeout@gmail.com>,
"Stephen Warren" <swarren@wwwdotorg.org>,
"Nicolas Chauvet" <kwizart@gmail.com>,
"Ulf Hansson" <ulf.hansson@linaro.org>,
"Adrian Hunter" <adrian.hunter@intel.com>,
"Billy Laws" <blaws05@gmail.com>
Cc: linux-tegra@vger.kernel.org, linux-block@vger.kernel.org,
Andrey Danin <danindrey@mail.ru>,
Gilles Grandou <gilles@grandou.net>,
Ryan Grachek <ryan@edited.us>,
linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v3 01/10] mmc: core: Add raw_boot_mult field to mmc_ext_csd
Date: Mon, 23 Mar 2020 19:34:22 +0300 [thread overview]
Message-ID: <20200323163431.7678-2-digetx@gmail.com> (raw)
In-Reply-To: <20200323163431.7678-1-digetx@gmail.com>
In order to support parsing of NVIDIA Tegra Partition Table format, we
need to know the BOOT_SIZE_MULT value of the Extended CSD register because
NVIDIA's bootloader 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.
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 de94fbe629bd..4b7261fbc332 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 cf3780a6ccc4..90b1d83ce675 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -108,6 +108,7 @@ 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 */
--
2.25.1
next prev parent reply other threads:[~2020-03-23 16:36 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-23 16:34 [PATCH v3 00/10] Introduce NVIDIA Tegra Partition Table Dmitry Osipenko
2020-03-23 16:34 ` Dmitry Osipenko [this message]
2020-03-23 16:34 ` [PATCH v3 02/10] mmc: block: Add mmc_bdev_to_card() helper Dmitry Osipenko
2020-03-23 16:34 ` [PATCH v3 03/10] partitions: Introduce NVIDIA Tegra Partition Table Dmitry Osipenko
2020-03-23 19:17 ` Michał Mirosław
2020-03-23 19:59 ` Dmitry Osipenko
2020-03-23 21:35 ` Michał Mirosław
2020-03-23 23:22 ` Dmitry Osipenko
2020-03-24 20:52 ` Michał Mirosław
2020-03-25 0:27 ` Dmitry Osipenko
2020-03-23 16:34 ` [PATCH v3 04/10] block: Introduce GENHD_FL_PART_SCAN_ONCE Dmitry Osipenko
2020-03-23 16:34 ` [PATCH v3 05/10] mmc: block: Add mmc_bdev_to_part_type() helper Dmitry Osipenko
2020-03-23 16:34 ` [PATCH v3 06/10] mmc: block: Add mmc_bdev_to_area_type() helper Dmitry Osipenko
2020-03-23 16:34 ` [PATCH v3 07/10] mmc: block: Add MMC_QUIRK_RESCAN_MAIN_BLKDEV Dmitry Osipenko
2020-03-23 16:34 ` [PATCH v3 08/10] mmc: block: Support partition-table scanning on boot partitions Dmitry Osipenko
2020-03-23 16:34 ` [PATCH v3 09/10] mmc: sdhci-tegra: Enable boot partitions scanning on Tegra20 and Tegra30 Dmitry Osipenko
2020-03-23 16:34 ` [PATCH v3 10/10] partitions/tegra: Implement eMMC boot partitions scanning Dmitry Osipenko
2020-03-23 16:49 ` [PATCH v3 00/10] Introduce NVIDIA Tegra Partition Table Dmitry Osipenko
2020-03-23 18:07 ` Michał Mirosław
2020-03-23 19:44 ` Dmitry Osipenko
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