summaryrefslogtreecommitdiffstats
path: root/dts/Bindings/mmc/mtk-sd.txt
diff options
context:
space:
mode:
Diffstat (limited to 'dts/Bindings/mmc/mtk-sd.txt')
-rw-r--r--dts/Bindings/mmc/mtk-sd.txt18
1 files changed, 15 insertions, 3 deletions
diff --git a/dts/Bindings/mmc/mtk-sd.txt b/dts/Bindings/mmc/mtk-sd.txt
index 4182ea36ca..72d2a734ab 100644
--- a/dts/Bindings/mmc/mtk-sd.txt
+++ b/dts/Bindings/mmc/mtk-sd.txt
@@ -7,10 +7,18 @@ This file documents differences between the core properties in mmc.txt
and the properties used by the msdc driver.
Required properties:
-- compatible: Should be "mediatek,mt8173-mmc","mediatek,mt8135-mmc"
+- compatible: value should be either of the following.
+ "mediatek,mt8135-mmc": for mmc host ip compatible with mt8135
+ "mediatek,mt8173-mmc": for mmc host ip compatible with mt8173
+ "mediatek,mt2701-mmc": for mmc host ip compatible with mt2701
+ "mediatek,mt2712-mmc": for mmc host ip compatible with mt2712
+- reg: physical base address of the controller and length
- interrupts: Should contain MSDC interrupt number
-- clocks: MSDC source clock, HCLK
-- clock-names: "source", "hclk"
+- clocks: Should contain phandle for the clock feeding the MMC controller
+- clock-names: Should contain the following:
+ "source" - source clock (required)
+ "hclk" - HCLK which used for host (required)
+ "source_cg" - independent source clock gate (required for MT2712)
- pinctrl-names: should be "default", "state_uhs"
- pinctrl-0: should contain default/high speed pin ctrl
- pinctrl-1: should contain uhs mode pin ctrl
@@ -30,6 +38,10 @@ Optional properties:
- mediatek,hs400-cmd-resp-sel-rising: HS400 command response sample selection
If present,HS400 command responses are sampled on rising edges.
If not present,HS400 command responses are sampled on falling edges.
+- mediatek,latch-ck: Some SoCs do not support enhance_rx, need set correct latch-ck to avoid data crc
+ error caused by stop clock(fifo full)
+ Valid range = [0:0x7]. if not present, default value is 0.
+ applied to compatible "mediatek,mt2701-mmc".
Examples:
mmc0: mmc@11230000 {