[PATCH 2/4] mmc: mmci: increase stm32 sdmmcv2 clock max freq

Yann Gautier yann.gautier at foss.st.com
Wed Dec 15 06:17:25 PST 2021


The variant->f_max is dependent on the IP, not on the SoC where it is
embedded. Set the max frequency of its source clock to 267MHz.
The frequency used will be limited by the IOs max frequency, set in the
SoC device tree.

Signed-off-by: Yann Gautier <yann.gautier at foss.st.com>
---
 drivers/mmc/host/mmci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index c0478dfa61b9..45b8608c935c 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -280,7 +280,7 @@ static struct variant_data variant_stm32_sdmmc = {
 static struct variant_data variant_stm32_sdmmcv2 = {
 	.fifosize		= 16 * 4,
 	.fifohalfsize		= 8 * 4,
-	.f_max			= 208000000,
+	.f_max			= 267000000,
 	.stm32_clkdiv		= true,
 	.cmdreg_cpsm_enable	= MCI_CPSM_STM32_ENABLE,
 	.cmdreg_lrsp_crc	= MCI_CPSM_STM32_LRSP_CRC,
-- 
2.17.1




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