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authorJerome Brunet <jbrunet@baylibre.com>2019-06-03 12:03:54 +0200
committerKevin Hilman <khilman@baylibre.com>2019-06-12 00:50:03 +0200
commit8a6b3ca2d361f2ff6e4412d2c07171ed8e2ee2b1 (patch)
treef5482e0209c091dc9c2226aad5045fb8a4cea289 /arch/arm64/boot/dts/amlogic/meson-g12a.dtsi
parentarm64: dts: meson: Add minimal support for Odroid-N2 (diff)
downloadlinux-8a6b3ca2d361f2ff6e4412d2c07171ed8e2ee2b1.tar.xz
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arm64: dts: meson: g12a: add SDIO controller
The Amlogic G12A SDIO Controller has a bug preventing direct DDR access, add the port A (SDIO) pinctrl and controller nodes and mark this specific controller with the amlogic,dram-access-quirk property. Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Diffstat (limited to 'arch/arm64/boot/dts/amlogic/meson-g12a.dtsi')
-rw-r--r--arch/arm64/boot/dts/amlogic/meson-g12a.dtsi37
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi
index 8ea2ec45add5..6aec4cf87350 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi
@@ -1326,6 +1326,30 @@
};
};
+ sdio_pins: sdio {
+ mux {
+ groups = "sdio_d0",
+ "sdio_d1",
+ "sdio_d2",
+ "sdio_d3",
+ "sdio_cmd",
+ "sdio_clk";
+ function = "sdio";
+ bias-disable;
+ drive-strength-microamp = <4000>;
+ };
+ };
+
+ sdio_clk_gate_pins: sdio_clk_gate {
+ mux {
+ groups = "GPIOX_4";
+ function = "gpio_periphs";
+ bias-pull-down;
+ drive-strength-microamp = <4000>;
+ };
+ };
+
+
uart_a_pins: uart-a {
mux {
groups = "uart_a_tx",
@@ -2316,6 +2340,19 @@
resets = <&reset RESET_SD_EMMC_C>;
};
+ sd_emmc_a: sd@ffe03000 {
+ compatible = "amlogic,meson-axg-mmc";
+ reg = <0x0 0xffe03000 0x0 0x800>;
+ interrupts = <GIC_SPI 189 IRQ_TYPE_EDGE_RISING>;
+ status = "disabled";
+ clocks = <&clkc CLKID_SD_EMMC_A>,
+ <&clkc CLKID_SD_EMMC_A_CLK0>,
+ <&clkc CLKID_FCLK_DIV2>;
+ clock-names = "core", "clkin0", "clkin1";
+ resets = <&reset RESET_SD_EMMC_A>;
+ amlogic,dram-access-quirk;
+ };
+
usb: usb@ffe09000 {
status = "disabled";
compatible = "amlogic,meson-g12a-usb-ctrl";