STM32 mcu 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>
---
drivers/mmc/host/mmci.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 170c78a..3e67cdd 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -221,6 +221,23 @@ static __maybe_unused struct variant_data variant_ux500v2 = {
.has_pad_config = true,
};
+static __maybe_unused 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_ST_DPSM_SDIOEN,
+ .st_sdio = true,
+ .st_clkdiv = true,
+ .pwrreg_powerup = MCI_PWR_ON,
+ .f_max = 48000000,
+ .pwrreg_clkgate = true,
+ .pwrreg_nopower = true,
+};
+
static __maybe_unused struct variant_data variant_qcom = {
.fifosize = 16 * 4,
.fifohalfsize = 8 * 4,
@@ -1981,6 +1998,7 @@ module_amba_driver(mmci_driver);
#endif
static const struct of_device_id mmci_pltfm_match[] = {
+ { .compatible = "st,stm32f4xx-sdio", .data = &variant_stm32},
{},
};
--
2.7.4
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