[PATCH v2 9/9] arm64: dts: mediatek: add HS200/HS400/SDR50/SDR104 support

Chaotian Jing chaotian.jing at mediatek.com
Tue Oct 20 02:13:11 PDT 2015


add HS200/HS400 support for eMMC
add SDR50/SDR104 support for SD

Signed-off-by: Chaotian Jing <chaotian.jing at mediatek.com>
---
 arch/arm64/boot/dts/mediatek/mt8173-evb.dts | 27 ++++++++++++++++++++-------
 1 file changed, 20 insertions(+), 7 deletions(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt8173-evb.dts b/arch/arm64/boot/dts/mediatek/mt8173-evb.dts
index 4be66ca..a061221 100644
--- a/arch/arm64/boot/dts/mediatek/mt8173-evb.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8173-evb.dts
@@ -70,10 +70,16 @@
 	pinctrl-0 = <&mmc0_pins_default>;
 	pinctrl-1 = <&mmc0_pins_uhs>;
 	bus-width = <8>;
-	max-frequency = <50000000>;
+	max-frequency = <200000000>;
 	cap-mmc-highspeed;
+	mmc-hs200-1_8v;
+	mmc-hs400-1_8v;
+	cap-mmc-hw-reset;
+	hs400-ds-delay = <0x14015>;
 	vmmc-supply = <&mt6397_vemc_3v3_reg>;
 	vqmmc-supply = <&mt6397_vio18_reg>;
+	assigned-clocks = <&topckgen CLK_TOP_MSDC50_0_SEL>;
+	assigned-clock-parents = <&topckgen CLK_TOP_MSDCPLL_D2>;
 	non-removable;
 };
 
@@ -83,9 +89,10 @@
 	pinctrl-0 = <&mmc1_pins_default>;
 	pinctrl-1 = <&mmc1_pins_uhs>;
 	bus-width = <4>;
-	max-frequency = <50000000>;
+	max-frequency = <200000000>;
 	cap-sd-highspeed;
-	sd-uhs-sdr25;
+	sd-uhs-sdr50;
+	sd-uhs-sdr104;
 	cd-gpios = <&pio 132 0>;
 	vmmc-supply = <&mt6397_vmch_reg>;
 	vqmmc-supply = <&mt6397_vmc_reg>;
@@ -154,13 +161,19 @@
 				 <MT8173_PIN_64_MSDC0_DAT7__FUNC_MSDC0_DAT7>,
 				 <MT8173_PIN_66_MSDC0_CMD__FUNC_MSDC0_CMD>;
 			input-enable;
-			drive-strength = <MTK_DRIVE_2mA>;
+			drive-strength = <MTK_DRIVE_4mA>;
 			bias-pull-up = <MTK_PUPD_SET_R1R0_01>;
 		};
 
 		pins_clk {
 			pinmux = <MT8173_PIN_65_MSDC0_CLK__FUNC_MSDC0_CLK>;
-			drive-strength = <MTK_DRIVE_2mA>;
+			drive-strength = <MTK_DRIVE_4mA>;
+			bias-pull-down = <MTK_PUPD_SET_R1R0_01>;
+		};
+
+		pins_ds {
+			pinmux = <MT8173_PIN_67_MSDC0_DSL__FUNC_MSDC0_DSL>;
+			drive-strength = <MTK_DRIVE_6mA>;
 			bias-pull-down = <MTK_PUPD_SET_R1R0_01>;
 		};
 
@@ -178,13 +191,13 @@
 				 <MT8173_PIN_76_MSDC1_DAT3__FUNC_MSDC1_DAT3>,
 				 <MT8173_PIN_78_MSDC1_CMD__FUNC_MSDC1_CMD>;
 			input-enable;
-			drive-strength = <MTK_DRIVE_4mA>;
+			drive-strength = <MTK_DRIVE_6mA>;
 			bias-pull-up = <MTK_PUPD_SET_R1R0_10>;
 		};
 
 		pins_clk {
 			pinmux = <MT8173_PIN_77_MSDC1_CLK__FUNC_MSDC1_CLK>;
-			drive-strength = <MTK_DRIVE_4mA>;
+			drive-strength = <MTK_DRIVE_8mA>;
 			bias-pull-down = <MTK_PUPD_SET_R1R0_10>;
 		};
 	};
-- 
1.8.1.1.dirty




More information about the linux-arm-kernel mailing list