From: Dinh Nguyen <dinguyen@xxxxxxxxxx>
Like the rockchip, Altera's SOCFPGA platform specific implementation of the
dw_mmc driver requires using the HOLD register for SD commands.
Signed-off-by: Dinh Nguyen <dinguyen@xxxxxxxxxx>
Acked-by: Steffen Trumtrar <s.trumtrar@xxxxxxxxxxxxxx>
Tested-by: Steffen Trumtrar <s.trumtrar@xxxxxxxxxxxxxx>
Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Cc: Pawel Moll <pawel.moll@xxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Cc: Ian Campbell <ijc+devicetree@xxxxxxxxxxxxxx>
Cc: Kumar Gala <galak@xxxxxxxxxxxxxx>
Cc: Seungwon Jeon <tgih.jun@xxxxxxxxxxx>
Cc: Jaehoon Chung <jh80.chung@xxxxxxxxxxx>
Cc: Chris Ball <chris@xxxxxxxxxx>
---
v2: Use dw_mci_socfpga_prepare_command instead of
dw_mci_rockchip_prepare_command
---
drivers/mmc/host/dw_mmc-pltfm.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/drivers/mmc/host/dw_mmc-pltfm.c b/drivers/mmc/host/dw_mmc-pltfm.c
index 5c49656..5b87cc2 100644
--- a/drivers/mmc/host/dw_mmc-pltfm.c
+++ b/drivers/mmc/host/dw_mmc-pltfm.c
@@ -30,10 +30,19 @@ static void dw_mci_rockchip_prepare_command(struct dw_mci *host, u32 *cmdr)
*cmdr |= SDMMC_CMD_USE_HOLD_REG;
}
+static void dw_mci_socfpga_prepare_command(struct dw_mci *host, u32 *cmdr)
+{
+ *cmdr |= SDMMC_CMD_USE_HOLD_REG;
+}
+
static const struct dw_mci_drv_data rockchip_drv_data = {
.prepare_command = dw_mci_rockchip_prepare_command,
};
+static const struct dw_mci_drv_data socfpga_drv_data = {
+ .prepare_command = dw_mci_socfpga_prepare_command,
+};
+
int dw_mci_pltfm_register(struct platform_device *pdev,
const struct dw_mci_drv_data *drv_data)
{
@@ -92,6 +101,8 @@ static const struct of_device_id dw_mci_pltfm_match[] = {
{ .compatible = "snps,dw-mshc", },
{ .compatible = "rockchip,rk2928-dw-mshc",
.data = &rockchip_drv_data },
+ { .compatible = "altr,socfpga-dw-mshc",
+ .data = &socfpga_drv_data },
{},
};
MODULE_DEVICE_TABLE(of, dw_mci_pltfm_match);
--
1.7.9.5
--
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