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>,
"Ulf Hansson" <ulf.hansson@linaro.org>,
"Adrian Hunter" <adrian.hunter@intel.com>,
"Christoph Hellwig" <hch@infradead.org>,
"Davidlohr Bueso" <dave@stgolabs.net>,
"Ion Agorria" <AG0RRIA@yahoo.com>,
"Svyatoslav Ryhel" <clamor95@gmail.com>
Cc: linux-tegra@vger.kernel.org, linux-block@vger.kernel.org,
linux-efi <linux-efi@vger.kernel.org>
Subject: [PATCH v4 1/3] mmc: core: Add raw_boot_mult field to mmc_ext_csd
Date: Tue, 17 Aug 2021 04:36:41 +0300 [thread overview]
Message-ID: <20210817013643.13061-2-digetx@gmail.com> (raw)
In-Reply-To: <20210817013643.13061-1-digetx@gmail.com>
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 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 838726b68ff3..29e58ffae379 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -418,6 +418,8 @@ 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 74e6c0624d27..37f975875102 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 */
--
2.32.0
next prev parent reply other threads:[~2021-08-17 1:37 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-17 1:36 [PATCH v4 0/3] Support EFI partition on NVIDIA Tegra devices Dmitry Osipenko
2021-08-17 1:36 ` Dmitry Osipenko [this message]
2021-08-17 1:36 ` [PATCH v4 2/3] mmc: block: Add mmc_bdev_to_card() helper Dmitry Osipenko
2021-08-17 4:37 ` Christoph Hellwig
2021-08-17 16:10 ` Dmitry Osipenko
2021-08-17 1:36 ` [PATCH v4 3/3] partitions/efi: Support NVIDIA Tegra devices Dmitry Osipenko
2021-08-17 4:43 ` Christoph Hellwig
2021-08-17 16:11 ` Dmitry Osipenko
2021-08-17 8:24 ` Ulf Hansson
2021-08-17 16:16 ` Dmitry Osipenko
2021-08-17 14:11 ` Thierry Reding
2021-08-17 16:10 ` Dmitry Osipenko
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210817013643.13061-2-digetx@gmail.com \
--to=digetx@gmail.com \
--cc=AG0RRIA@yahoo.com \
--cc=adrian.hunter@intel.com \
--cc=axboe@kernel.dk \
--cc=clamor95@gmail.com \
--cc=dave@stgolabs.net \
--cc=david@ixit.cz \
--cc=hch@infradead.org \
--cc=jonathanh@nvidia.com \
--cc=linux-block@vger.kernel.org \
--cc=linux-efi@vger.kernel.org \
--cc=linux-tegra@vger.kernel.org \
--cc=mirq-linux@rere.qmqm.pl \
--cc=pgwipeout@gmail.com \
--cc=thierry.reding@gmail.com \
--cc=ulf.hansson@linaro.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).