summaryrefslogtreecommitdiffstats
path: root/arch/arm/boot/dts/rk3288-veyron-sdmmc.dtsi
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/boot/dts/rk3288-veyron-sdmmc.dtsi')
-rw-r--r--arch/arm/boot/dts/rk3288-veyron-sdmmc.dtsi89
1 files changed, 89 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/rk3288-veyron-sdmmc.dtsi b/arch/arm/boot/dts/rk3288-veyron-sdmmc.dtsi
new file mode 100644
index 000000000..27fb06ce9
--- /dev/null
+++ b/arch/arm/boot/dts/rk3288-veyron-sdmmc.dtsi
@@ -0,0 +1,89 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Google Veyron (and derivatives) fragment for sdmmc cards
+ *
+ * Copyright 2015 Google, Inc
+ */
+
+&io_domains {
+ sdcard-supply = <&vccio_sd>;
+};
+
+&pinctrl {
+ sdmmc {
+ /*
+ * We run sdmmc at max speed; bump up drive strength.
+ * We also have external pulls, so disable the internal ones.
+ */
+ sdmmc_bus4: sdmmc-bus4 {
+ rockchip,pins = <6 RK_PC0 1 &pcfg_pull_none_drv_8ma>,
+ <6 RK_PC1 1 &pcfg_pull_none_drv_8ma>,
+ <6 RK_PC2 1 &pcfg_pull_none_drv_8ma>,
+ <6 RK_PC3 1 &pcfg_pull_none_drv_8ma>;
+ };
+
+ sdmmc_clk: sdmmc-clk {
+ rockchip,pins = <6 RK_PC4 1 &pcfg_pull_none_drv_8ma>;
+ };
+
+ sdmmc_cmd: sdmmc-cmd {
+ rockchip,pins = <6 RK_PC5 1 &pcfg_pull_none_drv_8ma>;
+ };
+
+ /*
+ * Builtin CD line is hooked to ground to prevent JTAG at boot
+ * (and also to get the voltage rail correct).
+ * Configure gpio6_C6 as GPIO so dw_mmc builtin CD doesn't
+ * think there's a card inserted
+ */
+ sdmmc_cd_disabled: sdmmc-cd-disabled {
+ rockchip,pins = <6 RK_PC6 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+
+ /* This is where we actually hook up CD */
+ sdmmc_cd_pin: sdmmc-cd-pin {
+ rockchip,pins = <7 RK_PA5 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+};
+
+&rk808 {
+ vcc9-supply = <&vcc_5v>;
+
+ regulators {
+ vccio_sd: LDO_REG4 {
+ regulator-name = "vccio_sd";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vcc33_sd: LDO_REG5 {
+ regulator-name = "vcc33_sd";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+ };
+};
+
+&sdmmc {
+ status = "okay";
+
+ bus-width = <4>;
+ cap-mmc-highspeed;
+ cap-sd-highspeed;
+ card-detect-delay = <200>;
+ cd-gpios = <&gpio7 RK_PA5 GPIO_ACTIVE_LOW>;
+ rockchip,default-sample-phase = <90>;
+ sd-uhs-sdr12;
+ sd-uhs-sdr25;
+ sd-uhs-sdr50;
+ sd-uhs-sdr104;
+ vmmc-supply = <&vcc33_sd>;
+ vqmmc-supply = <&vccio_sd>;
+};