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>

diff --git a/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi
index 8ea2ec4..6aec4cf 100644 (file)
--- 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";