From dc913385dd74e625271482c30aefedd1e5af7b8c Mon Sep 17 00:00:00 2001 From: Dmitry Osipenko Date: Fri, 20 Aug 2021 03:45:35 +0300 Subject: mmc: block: Support alternative_gpt_sector() operation Support generic alternative_gpt_sector() block device operation. It calculates location of GPT entry for eMMC of NVIDIA Tegra Android devices. Add new MMC_CAP2_ALT_GPT_TEGRA flag that enables scanning of alternative GPT sector and add raw_boot_mult field to mmc_ext_csd which allows to get size of the boot partitions that is needed for the calculation. Signed-off-by: Dmitry Osipenko Reviewed-by: Ulf Hansson Link: https://lore.kernel.org/r/20210820004536.15791-4-digetx@gmail.com Signed-off-by: Jens Axboe --- drivers/mmc/core/core.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/mmc/core/core.h') diff --git a/drivers/mmc/core/core.h b/drivers/mmc/core/core.h index 0c4de2030b3f..7931a4f0137d 100644 --- a/drivers/mmc/core/core.h +++ b/drivers/mmc/core/core.h @@ -119,6 +119,8 @@ void mmc_release_host(struct mmc_host *host); void mmc_get_card(struct mmc_card *card, struct mmc_ctx *ctx); void mmc_put_card(struct mmc_card *card, struct mmc_ctx *ctx); +int mmc_card_alternative_gpt_sector(struct mmc_card *card, sector_t *sector); + /** * mmc_claim_host - exclusively claim a host * @host: mmc host to claim -- cgit v1.2.3