From: Kevin Hilman Date: Thu, 23 Jun 2016 19:01:23 +0000 (-0700) Subject: ARM64: dts: meson-gxbb: add MMC support X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=fa91f6910dc6809bd0f68de119a43293ddd15330;p=deliverable%2Flinux.git ARM64: dts: meson-gxbb: add MMC support Add binding and basic support for the SD/eMMC controller on Amlogic S905/GXBB devices. Signed-off-by: Kevin Hilman --- diff --git a/Documentation/devicetree/bindings/mmc/amlogic,meson-gxbb.txt b/Documentation/devicetree/bindings/mmc/amlogic,meson-gxbb.txt new file mode 100644 index 000000000000..39cbe528b7de --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/amlogic,meson-gxbb.txt @@ -0,0 +1,29 @@ +Amlogic SD / eMMC controller for S905/GXBB family SoCs + +The MMC 5.1 compliant host controller on Amlogic provides the +interface for SD, eMMC and SDIO devices. + +This file documents the properties in addition to those available in +the MMC core bindings, documented by mmc.txt. + +Required properties: +- compatible : contains "amlogic,meson-gxbb-mmc" +- clocks : A list of phandle + clock-specifier pairs for the clocks listed in clock-names. +- clock-names: Should contain the following: + "core" - Main peripheral bus clock + "clkin0" - Parent clock of internal mux + "clkin1" - Other parent clock of internal mux + The driver has an interal mux clock which switches between clkin0 and clkin1 depending on the + clock rate requested by the MMC core. + +Example: + + sd_emmc_a: mmc@70000 { + compatible = "amlogic,meson-gxbb-mmc"; + reg = <0x0 0x70000 0x0 0x2000>; + interrupts = < GIC_SPI 216 IRQ_TYPE_EDGE_RISING>; + clocks = <&clkc CLKID_SD_EMMC_A>, <&xtal>, <&clkc CLKID_FCLK_DIV2>; + clock-names = "core", "clkin0", "clkin1"; + pinctrl-0 = <&emmc_pins>; + }; + diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts index 90a84c514d3d..cba3ea16dfd1 100644 --- a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts +++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts @@ -73,6 +73,45 @@ default-state = "off"; }; }; + + mmc_iv: gpio-regulator { + compatible = "regulator-gpio"; + + regulator-name = "mmc-gpio-supply"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <3300000>; + + gpios = <&gpio_ao GPIOAO_3 GPIO_ACTIVE_HIGH>; + gpios-states = <0>; + + /* + * Based on ODROID-C2 schematics: + * signal name: IO_TF_3V3N_1V8, GPIOAO bit 3 + */ + states = <3300000 0 + 1800000 1>; + }; + + vcc1v8: regulator-vcc1v8 { + compatible = "regulator-fixed"; + regulator-name = "VCC1V8"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-always-on; + }; + + vcc3v3: regulator-vcc3v3 { + compatible = "regulator-fixed"; + regulator-name = "VCC3V3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + }; + + emmc_pwrseq: emmc-pwrseq { + compatible = "mmc-pwrseq-emmc"; + reset-gpios = <&gpio BOOT_9 GPIO_ACTIVE_LOW>; + }; }; &uart_AO { @@ -87,3 +126,38 @@ pinctrl-names = "default"; }; +&sd_emmc_b { + status = "okay"; + pinctrl-0 = <&sdcard_pins>; + pinctrl-names = "default"; + + bus-width = <4>; + cap-sd-highspeed; + max-frequency = <100000000>; + + cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>; + cd-inverted; + + vmmc-supply = <&mmc_iv>; + voltage-ranges = <1800 3300>; +}; + +&sd_emmc_c { + status = "okay"; + pinctrl-0 = <&emmc_pins>; + pinctrl-names = "default"; + + bus-width = <8>; + cap-sd-highspeed; + max-frequency = <200000000>; + non-removable; + disable-wp; + cap-mmc-highspeed; + mmc-ddr-1_8v; + mmc-hs200-1_8v; + + mmc-pwrseq = <&emmc_pwrseq>; + voltage-ranges = <1800 3300>; + vmmc-supply = <&vcc3v3>; + vmmcq-sumpply = <&vcc1v8>; +}; diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-p20x.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb-p20x.dtsi index f4f30f674b4c..e118754ece21 100644 --- a/arch/arm64/boot/dts/amlogic/meson-gxbb-p20x.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-p20x.dtsi @@ -57,6 +57,42 @@ device_type = "memory"; reg = <0x0 0x0 0x0 0x40000000>; }; + + mmc_iv: gpio-regulator { + compatible = "regulator-gpio"; + + regulator-name = "mmc-gpio-supply"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <3300000>; + + gpios = <&gpio_ao GPIOAO_5 GPIO_ACTIVE_HIGH>; + gpios-states = <1>; + + /* Based on P200 schematics, signal CARD_1.8V/3.3V_CTR */ + states = <1800000 0 + 3300000 1>; + }; + + vddio_boot: regulator-vddio_boot { + compatible = "regulator-fixed"; + regulator-name = "VDDIO_BOOT"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-always-on; + }; + + vcc_3v3: regulator-vcc_3v3 { + compatible = "regulator-fixed"; + regulator-name = "VCC_3V3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + }; + + emmc_pwrseq: emmc-pwrseq { + compatible = "mmc-pwrseq-emmc"; + reset-gpios = <&gpio BOOT_9 GPIO_ACTIVE_LOW>; + }; }; /* This UART is brought out to the DB9 connector */ @@ -72,3 +108,38 @@ pinctrl-names = "default"; }; +&sd_emmc_b { + status = "okay"; + pinctrl-0 = <&sdcard_pins>; + pinctrl-names = "default"; + + bus-width = <4>; + cap-sd-highspeed; + max-frequency = <100000000>; + + cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>; + cd-inverted; + + voltage-ranges = <1800 3300>; + vmmc-supply = <&mmc_iv>; +}; + +&sd_emmc_c { + status = "okay"; + pinctrl-0 = <&emmc_pins>; + pinctrl-names = "default"; + + bus-width = <8>; + cap-sd-highspeed; + cap-mmc-highspeed; + max-frequency = <200000000>; + non-removable; + disable-wp; + mmc-ddr-1_8v; + mmc-hs200-1_8v; + + mmc-pwrseq = <&emmc_pwrseq>; + voltage-ranges = <1800 3300>; + vmmc-supply = <&vcc_3v3>; + vmmcq-sumpply = <&vddio_boot>; +}; diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi index e502c24b0ac7..3723007146ac 100644 --- a/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi @@ -45,6 +45,7 @@ #include #include #include +#include / { compatible = "amlogic,meson-gxbb"; @@ -246,7 +247,8 @@ mux { groups = "emmc_nand_d07", "emmc_cmd", - "emmc_clk"; + "emmc_clk", + "emmc_ds"; function = "emmc"; }; }; @@ -329,6 +331,39 @@ #address-cells = <2>; #size-cells = <2>; ranges = <0x0 0x0 0x0 0xd0000000 0x0 0x200000>; + + sd_emmc_a: mmc@70000 { + compatible = "amlogic,meson-gxbb-mmc"; + reg = <0x0 0x70000 0x0 0x2000>; + interrupts = ; + clocks = <&clkc CLKID_SD_EMMC_A>, + <&xtal>, + <&clkc CLKID_FCLK_DIV2>; + clock-names = "core", "clkin0", "clkin1"; + status = "disabled"; + }; + + sd_emmc_b: mmc@72000 { + compatible = "amlogic,meson-gxbb-mmc"; + reg = <0x0 0x72000 0x0 0x2000>; + interrupts = ; + clocks = <&clkc CLKID_SD_EMMC_B>, + <&xtal>, + <&clkc CLKID_FCLK_DIV2>; + clock-names = "core", "clkin0", "clkin1"; + status = "disabled"; + }; + + sd_emmc_c: mmc@74000 { + compatible = "amlogic,meson-gxbb-mmc"; + reg = <0x0 0x74000 0x0 0x2000>; + interrupts = ; + clocks = <&clkc CLKID_SD_EMMC_C>, + <&xtal>, + <&clkc CLKID_FCLK_DIV2>; + clock-names = "core", "clkin0", "clkin1"; + status = "disabled"; + }; }; ethmac: ethernet@c9410000 {