Commit 96a13691 authored by Jerome Brunet's avatar Jerome Brunet Committed by Kevin Hilman
Browse files

arm64: dts: meson: disable pad bias for mmc pinmuxes 



In some cases (such as a boot from SPI) the bootloader or the ROM code may
leave a bias pull-down on the mmc pins. If so the MMC will fail during the
initialisation.

Explicitly disabling the pinmux solves the problem.

Signed-off-by: default avatarJerome Brunet <jbrunet@baylibre.com>
Signed-off-by: default avatarKevin Hilman <khilman@baylibre.com>
parent 06096d7a

arch/arm64/boot/dts/amlogic/meson-axg.dtsi

+2 −0
Original line number Diff line number Diff line
@@ -303,6 +303,7 @@ 
							 "emmc_cmd",

							 "emmc_ds";

						function = "emmc";

						bias-disable;

					};

				};
@@ -533,6 +534,7 @@ 
							 "sdio_cmd",

							 "sdio_clk";

						function = "sdio";

						bias-disable;

					};

				};

arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi

+4 −0
Original line number Diff line number Diff line
@@ -363,6 +363,7 @@ 
				       "emmc_cmd",

				       "emmc_clk";

				function = "emmc";

				bias-disable;

			};

		};
@@ -370,6 +371,7 @@ 
			mux {

				groups = "emmc_ds";

				function = "emmc";

				bias-disable;

			};

		};
@@ -416,6 +418,7 @@ 
				       "sdcard_cmd",

				       "sdcard_clk";

				function = "sdcard";

				bias-disable;

			};

		};
@@ -436,6 +439,7 @@ 
				       "sdio_cmd",

				       "sdio_clk";

				function = "sdio";

				bias-disable;

			};

		};

arch/arm64/boot/dts/amlogic/meson-gxl.dtsi

+4 −0
Original line number Diff line number Diff line
@@ -310,6 +310,7 @@ 
				       "emmc_cmd",

				       "emmc_clk";

				function = "emmc";

				bias-disable;

			};

		};
@@ -317,6 +318,7 @@ 
			mux {

				groups = "emmc_ds";

				function = "emmc";

				bias-disable;

			};

		};
@@ -363,6 +365,7 @@ 
				       "sdcard_cmd",

				       "sdcard_clk";

				function = "sdcard";

				bias-disable;

			};

		};
@@ -383,6 +386,7 @@ 
				       "sdio_cmd",

				       "sdio_clk";

				function = "sdio";

				bias-disable;

			};

		};

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