67 lines
2.4 KiB
Diff
67 lines
2.4 KiB
Diff
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From 0c9a276d459db0c16468cf2bae502eefd379c61b Mon Sep 17 00:00:00 2001
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From: Paolo Sabatino <paolo.sabatino@gmail.com>
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Date: Wed, 21 Apr 2021 11:02:43 +0000
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Subject: [PATCH] rk3318-box: add emmc hs200 device tree overlay
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---
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arch/arm64/boot/dts/rockchip/overlay/Makefile | 3 ++-
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.../dts/rockchip/overlay/README.rockchip-overlays | 6 ++++++
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.../overlay/rockchip-rk3318-box-emmc-hs200.dts | 14 ++++++++++++++
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3 files changed, 22 insertions(+), 1 deletion(-)
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create mode 100644 arch/arm64/boot/dts/rockchip/overlay/rockchip-rk3318-box-emmc-hs200.dts
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diff --git a/arch/arm64/boot/dts/rockchip/overlay/Makefile b/arch/arm64/boot/dts/rockchip/overlay/Makefile
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index 42b19bd85..f227d5997 100644
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--- a/arch/arm64/boot/dts/rockchip/overlay/Makefile
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+++ b/arch/arm64/boot/dts/rockchip/overlay/Makefile
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@@ -16,7 +16,8 @@ dtbo-$(CONFIG_ARCH_ROCKCHIP) += \
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rockchip-rk3318-box-wlan-ap6334.dtbo \
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rockchip-rk3318-box-wlan-ext.dtbo \
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rockchip-rk3318-box-wlan-ap6330.dtbo \
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- rockchip-rk3318-box-cpu-hs.dtbo
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+ rockchip-rk3318-box-cpu-hs.dtbo \
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+ rockchip-rk3318-box-emmc-hs200.dtbo
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scr-$(CONFIG_ARCH_ROCKCHIP) += \
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rockchip-fixup.scr
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diff --git a/arch/arm64/boot/dts/rockchip/overlay/README.rockchip-overlays b/arch/arm64/boot/dts/rockchip/overlay/README.rockchip-overlays
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index 2fc9b00fe..1b547bea7 100644
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--- a/arch/arm64/boot/dts/rockchip/overlay/README.rockchip-overlays
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+++ b/arch/arm64/boot/dts/rockchip/overlay/README.rockchip-overlays
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@@ -130,6 +130,12 @@ Activates eMMC DDR capability for rk3318 tv box boards. Probably all the eMMC ch
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nowadays support DDR mode, but its reliability heavily depends upon the quality
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of board wiring
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+### rk3318-box-emmc-hs200
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+
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+Activates eMMC HS200 capability for rk3318 tv box boards.
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+It should in autodetect mode, but some board have faulty or cheap circuitry that
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+enable the mode but then it doesn't work correctly.
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+
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### rk3318-box-wlan-ap6334
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Set up additional device tree bits to properly support ap6334 (broadcom BCM4334)
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diff --git a/arch/arm64/boot/dts/rockchip/overlay/rockchip-rk3318-box-emmc-hs200.dts b/arch/arm64/boot/dts/rockchip/overlay/rockchip-rk3318-box-emmc-hs200.dts
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new file mode 100644
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index 000000000..55f8f7eb6
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--- /dev/null
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+++ b/arch/arm64/boot/dts/rockchip/overlay/rockchip-rk3318-box-emmc-hs200.dts
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@@ -0,0 +1,14 @@
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+/dts-v1/;
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+/plugin/;
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+
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+/ {
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+
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+ fragment@0 {
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+ target = <&emmc>;
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+ __overlay__ {
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+ status = "okay";
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+ mmc-hs200-1_8v;
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+ };
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+ };
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+
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+};
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--
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2.25.1
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