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Subject[PATCH 3/5] mmc: mtk-sd: add support for config found in mt7620 family SOCs.
mt7620 family MIPS SOCs contain the mtk-sd silicon.
Add support for this.

Signed-off-by: NeilBrown <neil@brown.name>

# Conflicts:
# drivers/mmc/host/mtk-sd.c
---
Documentation/devicetree/bindings/mmc/mtk-sd.txt | 1 +
drivers/mmc/host/mtk-sd.c | 12 ++++++++++++
2 files changed, 13 insertions(+)

diff --git a/Documentation/devicetree/bindings/mmc/mtk-sd.txt b/Documentation/devicetree/bindings/mmc/mtk-sd.txt
index ed61cd5a5b8f..b6daa9773b25 100644
--- a/Documentation/devicetree/bindings/mmc/mtk-sd.txt
+++ b/Documentation/devicetree/bindings/mmc/mtk-sd.txt
@@ -15,6 +15,7 @@ Required properties:
"mediatek,mt2712-mmc": for mmc host ip compatible with mt2712
"mediatek,mt7622-mmc": for MT7622 SoC
"mediatek,mt7623-mmc", "mediatek,mt2701-mmc": for MT7623 SoC
+ "ralink,mt7620-sdhci", for MT7621 SoC (and others)

- reg: physical base address of the controller and length
- interrupts: Should contain MSDC interrupt number
diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c
index 14e048239143..d379f2ece305 100644
--- a/drivers/mmc/host/mtk-sd.c
+++ b/drivers/mmc/host/mtk-sd.c
@@ -517,6 +517,17 @@ static const struct mtk_mmc_compatible mt8516_compat = {
.stop_clk_fix = true,
};

+static const struct mtk_mmc_compatible mt7620_compat = {
+ .clk_div_bits = 8,
+ .hs400_tune = false,
+ .pad_tune_reg = MSDC_PAD_TUNE,
+ .async_fifo = false,
+ .data_tune = false,
+ .busy_check = false,
+ .stop_clk_fix = false,
+ .enhance_rx = false,
+};
+
static const struct of_device_id msdc_of_ids[] = {
{ .compatible = "mediatek,mt8135-mmc", .data = &mt8135_compat},
{ .compatible = "mediatek,mt8173-mmc", .data = &mt8173_compat},
@@ -525,6 +536,7 @@ static const struct of_device_id msdc_of_ids[] = {
{ .compatible = "mediatek,mt2712-mmc", .data = &mt2712_compat},
{ .compatible = "mediatek,mt7622-mmc", .data = &mt7622_compat},
{ .compatible = "mediatek,mt8516-mmc", .data = &mt8516_compat},
+ { .compatible = "ralink,mt7620-sdhci", .data = &mt7620_compat},
{}
};
MODULE_DEVICE_TABLE(of, msdc_of_ids);

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