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165 lines
3.9 KiB
Diff
165 lines
3.9 KiB
Diff
From 2715f4a9ab5c169c546029a61eebb0bde6619b0e Mon Sep 17 00:00:00 2001
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From: Myy Miouyouyou <myy@miouyouyou.fr>
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Date: Thu, 19 Oct 2017 22:12:48 +0200
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Subject: [PATCH 18/28] ARM: DTS: rk3288-tinker.dts: Enabling SDIO, Wireless
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and Bluetooth
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Adding the appropriate nodes in order to exploit the WiFi capabilities
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of the board.
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Since these capabilities are provided through SDIO, and the SDIO
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nodes were not defined, these were added too.
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These seems to depend on each other so they are added in one big
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patch.
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Split if necessary.
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Bluetooth and uart0 (AKA Bluetooth UART) definitions were also added
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in order to deal with all the wireless techs in one patch.
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Signed-off-by: Myy Miouyouyou <myy@miouyouyou.fr>
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---
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arch/arm/boot/dts/rk3288-tinker.dts | 82 ++++++++++++++++++++++++++++++++++++-
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1 file changed, 81 insertions(+), 1 deletion(-)
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diff --git a/arch/arm/boot/dts/rk3288-tinker.dts b/arch/arm/boot/dts/rk3288-tinker.dts
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index 346b0d8b..c552fd95 100644
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--- a/arch/arm/boot/dts/rk3288-tinker.dts
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+++ b/arch/arm/boot/dts/rk3288-tinker.dts
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@@ -44,6 +44,7 @@
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#include "rk3288.dtsi"
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#include <dt-bindings/input/input.h>
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+#include <dt-bindings/clock/rockchip,rk808.h>
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/ {
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model = "Rockchip RK3288 Tinker Board";
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@@ -114,6 +115,24 @@
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};
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};
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+ /* This is essential to get SDIO devices working.
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+ The Wifi depends on SDIO ! */
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+ sdio_pwrseq: sdio-pwrseq {
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+ compatible = "mmc-pwrseq-simple";
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+ clocks = <&rk808 RK808_CLKOUT1>;
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+ clock-names = "ext_clock";
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&chip_enable_h>, <&wifi_enable_h>;
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+
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+ /*
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+ * On the module itself this is one of these (depending
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+ * on the actual card populated):
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+ * - SDIO_RESET_L_WL_REG_ON
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+ * - PDN (power down when low)
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+ */
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+ reset-gpios = <&gpio4 RK_PD4 GPIO_ACTIVE_LOW>, <&gpio4 RK_PD3 GPIO_ACTIVE_LOW>;
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+ };
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+
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vcc_sys: vsys-regulator {
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compatible = "regulator-fixed";
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regulator-name = "vcc_sys";
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@@ -134,6 +153,28 @@
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startup-delay-us = <100000>;
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vin-supply = <&vcc_io>;
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};
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+
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+ wireless-wlan {
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+ compatible = "wlan-platdata";
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+ rockchip,grf = <&grf>;
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+ wifi_chip_type = "8723bs";
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+ sdio_vref = <1800>;
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+ WIFI,host_wake_irq = <&gpio4 30 GPIO_ACTIVE_HIGH>;
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+ status = "okay";
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+ };
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+
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+ wireless-bluetooth {
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+ compatible = "bluetooth-platdata";
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+ uart_rts_gpios = <&gpio4 19 GPIO_ACTIVE_LOW>;
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+ pinctrl-names = "default","rts_gpio";
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+ pinctrl-0 = <&uart0_rts>;
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+ pinctrl-1 = <&uart0_gpios>;
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+ BT,reset_gpio = <&gpio4 29 GPIO_ACTIVE_HIGH>;
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+ BT,wake_gpio = <&gpio4 26 GPIO_ACTIVE_HIGH>;
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+ BT,wake_host_irq = <&gpio4 31 GPIO_ACTIVE_HIGH>;
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+ status = "okay";
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+ };
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+
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};
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&cpu0 {
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@@ -373,10 +414,30 @@
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&io_domains {
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status = "okay";
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-
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+ rockchip,grf = <&grf>;
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+ wifi-supply = <&vcc_18>;
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sdcard-supply = <&vccio_sd>;
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};
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+&sdio0 {
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+ status = "okay";
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+ clock-frequency = <50000000>;
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+ clock-freq-min-max = <200000 50000000>;
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+ bus-width = <4>;
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+ cap-sd-highspeed;
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+ cap-sdio-irq;
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+ disable-wp;
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+ keep-power-in-suspend;
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+ mmc-pwrseq = <&sdio_pwrseq>;
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+ non-removable;
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+ num-slots = <1>;
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&sdio0_bus4 &sdio0_cmd &sdio0_clk>;
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+ sd-uhs-sdr104;
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+ supports-sdio;
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+
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+};
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+
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&pinctrl {
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pcfg_pull_none_drv_8ma: pcfg-pull-none-drv-8ma {
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drive-strength = <8>;
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@@ -422,6 +483,16 @@
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};
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};
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+ sdio-pwrseq {
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+ wifi_enable_h: wifienable-h {
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+ rockchip,pins = <4 28 RK_FUNC_GPIO &pcfg_pull_none>;
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+ };
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+
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+ chip_enable_h: chip-enable-h {
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+ rockchip,pins = <4 27 RK_FUNC_GPIO &pcfg_pull_none>;
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+ };
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+ };
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+
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sdmmc {
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sdmmc_bus4: sdmmc-bus4 {
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rockchip,pins = <6 16 RK_FUNC_1 &pcfg_pull_up_drv_8ma>,
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@@ -453,6 +524,13 @@
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rockchip,pins = <7 8 RK_FUNC_GPIO &pcfg_pull_none>;
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};
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};
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+
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+ wireless-bluetooth {
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+ uart0_gpios: uart0-gpios {
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+ rockchip,pins = <4 19 RK_FUNC_GPIO &pcfg_pull_none>;
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+ };
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+ };
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+
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};
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&pwm0 {
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@@ -485,6 +563,8 @@
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&uart0 {
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status = "okay";
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&uart0_xfer>, <&uart0_cts>;
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};
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&uart1 {
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--
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2.11.0
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