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-rw-r--r--Documentation/devicetree/bindings/mmc/amlogic,meson-gx.txt4
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mmc/amlogic,meson-gx.txt b/Documentation/devicetree/bindings/mmc/amlogic,meson-gx.txt
index 13e70409e8ac..ccc5358db131 100644
--- a/Documentation/devicetree/bindings/mmc/amlogic,meson-gx.txt
+++ b/Documentation/devicetree/bindings/mmc/amlogic,meson-gx.txt
@@ -22,6 +22,10 @@ Required properties:
clock rate requested by the MMC core.
- resets : phandle of the internal reset line
+Optional properties:
+- amlogic,dram-access-quirk: set when controller's internal DMA engine cannot access the
+ DRAM memory, like on the G12A dedicated SDIO controller.
+
Example:
sd_emmc_a: mmc@70000 {