diff options
| author | Yann Gautier <yann.gautier@foss.st.com> | 2021-12-15 15:17:27 +0100 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2021-12-21 13:06:15 +0100 |
| commit | 36240ef8665b24d42ee3ac03b85f25bc6761ed13 (patch) | |
| tree | c9db8560e6ae9f3e2cf2c10a4f937cae074e8b0c /drivers/mmc/host/mmci_stm32_sdmmc.c | |
| parent | 4481ab602cedf93bd8fdb9ded6977dd4b14a27e3 (diff) | |
mmc: mmci: add hs200 support for stm32 sdmmc
Use feedback clock for HS200 mode, as for SDR104.
The HS200 mode can be enabled through DT by using mmc-hs200-1_8v.
It is possible to use it on STM32MP13, but not STM32MP15 platforms.
Signed-off-by: Ludovic Barre <ludovic.barre@foss.st.com>
Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20211215141727.4901-5-yann.gautier@foss.st.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host/mmci_stm32_sdmmc.c')
| -rw-r--r-- | drivers/mmc/host/mmci_stm32_sdmmc.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/mmc/host/mmci_stm32_sdmmc.c b/drivers/mmc/host/mmci_stm32_sdmmc.c index a75d3dd34d18..9c13f2c31365 100644 --- a/drivers/mmc/host/mmci_stm32_sdmmc.c +++ b/drivers/mmc/host/mmci_stm32_sdmmc.c @@ -241,11 +241,12 @@ static void mmci_sdmmc_set_clkreg(struct mmci_host *host, unsigned int desired) /* * SDMMC_FBCK is selected when an external Delay Block is needed - * with SDR104. + * with SDR104 or HS200. */ if (host->mmc->ios.timing >= MMC_TIMING_UHS_SDR50) { clk |= MCI_STM32_CLK_BUSSPEED; - if (host->mmc->ios.timing == MMC_TIMING_UHS_SDR104) { + if (host->mmc->ios.timing == MMC_TIMING_UHS_SDR104 || + host->mmc->ios.timing == MMC_TIMING_MMC_HS200) { clk &= ~MCI_STM32_CLK_SEL_MSK; clk |= MCI_STM32_CLK_SELFBCK; } |