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authorPatrice Chotard <patrice.chotard@st.com>2018-01-18 17:34:21 +0300
committerUlf Hansson <ulf.hansson@linaro.org>2018-01-18 20:14:45 +0300
commit2a9d6c8060894ce06855b09d62be64110e48f27e (patch)
treedf38cb28bdeebd6744072a539022f592e805a35f /drivers/mmc/host
parentf9bb304ce855fad615c5adffae5e129941ff0b48 (diff)
downloadlinux-2a9d6c8060894ce06855b09d62be64110e48f27e.tar.xz
mmc: mmci: Add STM32 variant
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@gmail.com> Signed-off-by: Patrice Chotard <patrice.chotard@st.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host')
-rw-r--r--drivers/mmc/host/mmci.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index f8a21f3c3b51..6246eaada750 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -244,6 +244,23 @@ static struct variant_data variant_ux500v2 = {
.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,
@@ -2021,6 +2038,11 @@ static const struct amba_id mmci_ids[] = {
.mask = 0xf0ffffff,
.data = &variant_ux500v2,
},
+ {
+ .id = 0x00880180,
+ .mask = 0x00ffffff,
+ .data = &variant_stm32,
+ },
/* Qualcomm variants */
{
.id = 0x00051180,