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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>
Reviewed-by: Chaotian Jing <chaotian.jing@mediatek.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
NeilBrown 2019-05-04 20:24:56 +10:00 committed by Ulf Hansson
parent 42edb0d5ac
commit afb7c7910b
2 changed files with 13 additions and 0 deletions
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1
Documentation/devicetree/bindings/mmc/mtk-sd.txt
View File

@ -16,6 +16,7 @@ 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
"mediatek,mt7620-mmc", for MT7621 SoC (and others)
- reg: physical base address of the controller and length
- interrupts: Should contain MSDC interrupt number

12
drivers/mmc/host/mtk-sd.c
View File

@ -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 = "mediatek,mt7620-mmc", .data = &mt7620_compat},
{}
};
MODULE_DEVICE_TABLE(of, msdc_of_ids);