From: Patrice Chotard <patrice.chotard@xxxxxx>
STM32F4 and STM32F7 MCUs has a SDIO controller that looks like
an ARM PL810.
This patch adds the STM32 variant so that mmci driver supports it.
Signed-off-by: Andrea Merello <andrea.merello@xxxxxxxxx>
Signed-off-by: Patrice Chotard <patrice.chotard@xxxxxx>
Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
---
v2: _ Replace "pl180" by "PL180" in commit message
drivers/mmc/host/mmci.c | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 2a7aea7..560b2fd 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -244,6 +244,23 @@ struct variant_data {
.opendrain = MCI_OD,
};
+static struct variant_data variant_stm32 = {
+ .fifosize = 32 * 4,
+ .fifohalfsize = 8 * 4,
+ .clkreg = MCI_CLK_ENABLE,
+ .clkreg_enable = MCI_ST_UX500_HWFCEN,
+ .clkreg_8bit_bus_enable = MCI_ST_8BIT_BUS,
+ .clkreg_neg_edge_enable = MCI_ST_UX500_NEG_EDGE,
+ .datalength_bits = 24,
+ .datactrl_mask_sdio = MCI_DPSM_ST_SDIOEN,
+ .st_sdio = true,
+ .st_clkdiv = true,
+ .pwrreg_powerup = MCI_PWR_ON,
+ .f_max = 48000000,
+ .pwrreg_clkgate = true,
+ .pwrreg_nopower = true,
+};
+
static struct variant_data variant_qcom = {
.fifosize = 16 * 4,
.fifohalfsize = 8 * 4,
@@ -2025,6 +2042,11 @@ static int mmci_runtime_resume(struct device *dev)
.mask = 0xf0ffffff,
.data = &variant_ux500v2,
},
+ {
+ .id = 0x00880180,
+ .mask = 0x00ffffff,
+ .data = &variant_stm32,
+ },
/* Qualcomm variants */
{
.id = 0x00051180,
--
1.9.1
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
