dts: rk3399-puma: add DTS for RK3399-Q7 (Puma) SoM

The RK3399-Q7 is a system-on-module featuring the Rockchip RK3399
in a Qseven-compatible form-factor.

These changes add a device-tree describing the board and its
interfaces for basic functionality (e.g. GbE, SPI, eMMC, SD-card).

This includes the following changes from the original development:

 * dts: rk3399-puma: include DTS for RK3399-Q7 SoM in the Makefile
 * dts: rk3399-puma: add gmac for the RK3399-Q7

This change enables the Gigabit Ethernet support on the RK3399-Q7.

 * dts: rk3399-puma: use serial0 for stdout
 * dts: rk3399-puma: prepare the sdmmc node for SPL booting
 * dts: rk3399-puma: enable spi1 and spi5, add /spi1/spiflash

The RK3399-Q7 (Puma) unsually (this is a build-time option for
customised boards) has an on-module SPI-flash connected to SPI1.
As of today, this is a Winbond W25Q32DW (32MBit) device.

The SPI5 controller is routed to the Q7 edge connector and provides
general-purpose SPI connectivity for customer base-boards.

With some minor improvements on integration into our outbound tree
 - explicitly modelled the SPI flash as 'spiflash' under spi0
   [dts: rk3399-puma: explicitly model spi-flash under spi1]
 - renamed the aliases to spi0 and spi1 to allow easier use of
   commands and legacy (SPL) infrastructure... i.e. the controllers
   will be 0 and 1 for 'sf probe', 'sspi', etc.
   [dts: rk3399-puma: rename aliases to number spi as 0 and 1 for commands]

 * dts: rk3399-puma: include SPI in the spl-boot-order property

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Acked-by: Simon Glass <sjg@chromium.org>

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index e6f256e..dad3661 100644 (file)
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -40,7 +40,8 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += \
        rk3288-tinker.dtb \
        rk3288-popmetal.dtb \
        rk3328-evb.dtb \
-       rk3399-evb.dtb
+       rk3399-evb.dtb \
+       rk3399-puma.dtb
 dtb-$(CONFIG_ARCH_MESON) += \
        meson-gxbb-odroidc2.dtb
 dtb-$(CONFIG_TEGRA) += tegra20-harmony.dtb \

diff --git a/arch/arm/dts/rk3399-puma.dts b/arch/arm/dts/rk3399-puma.dts
new file mode 100644 (file)
index 0000000..917df1e
--- /dev/null
+++ b/arch/arm/dts/rk3399-puma.dts
@@ -0,0 +1,189 @@
+/*
+ * (C) Copyright 2017 Theobroma Systems Design und Consulting GmbH
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+/dts-v1/;
+#include <dt-bindings/pwm/pwm.h>
+#include "rk3399.dtsi"
+#include "rk3399-sdram-ddr3-1333.dtsi"
+
+/ {
+       model = "Theobroma Systems RK3399-Q7 SoM";
+       compatible = "tsd,puma", "rockchip,rk3399";
+
+       chosen {
+               stdout-path = "serial0:115200n8";
+               u-boot,spl-boot-order = &spiflash, &sdhci, &sdmmc;
+       };
+
+       aliases {
+               spi0 = &spi1;
+               spi1 = &spi5;
+       };
+
+       vdd_center: vdd-center {
+               compatible = "pwm-regulator";
+               pwms = <&pwm3 0 25000 0>;
+               regulator-name = "vdd_center";
+               regulator-min-microvolt = <800000>;
+               regulator-max-microvolt = <1400000>;
+               regulator-init-microvolt = <950000>;
+               regulator-always-on;
+               regulator-boot-on;
+               status = "okay";
+       };
+
+       vcc3v3_sys: vcc3v3-sys {
+               compatible = "regulator-fixed";
+               regulator-name = "vcc3v3_sys";
+               regulator-always-on;
+               regulator-boot-on;
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+       };
+
+       vcc_phy: vcc-phy-regulator {
+               compatible = "regulator-fixed";
+               regulator-name = "vcc_phy";
+               regulator-always-on;
+               regulator-boot-on;
+       };
+
+       vcc5v0_host: vcc5v0-host-en {
+               compatible = "regulator-fixed";
+               regulator-name = "vcc5v0_host";
+               gpio = <&gpio4 25 GPIO_ACTIVE_HIGH>;
+       };
+
+       clkin_gmac: external-gmac-clock {
+               compatible = "fixed-clock";
+               clock-frequency = <125000000>;
+               clock-output-names = "clkin_gmac";
+               #clock-cells = <0>;
+       };
+
+       vcc_phy: vcc-phy-regulator {
+               compatible = "regulator-fixed";
+               regulator-name = "vcc_phy";
+               regulator-always-on;
+               regulator-boot-on;
+       };
+};
+
+&emmc_phy {
+       status = "okay";
+};
+
+&pwm0 {
+       status = "okay";
+};
+
+&pwm2 {
+       status = "okay";
+};
+
+&pwm3 {
+       status = "okay";
+};
+
+&sdmmc {
+        u-boot,dm-pre-reloc;
+       bus-width = <4>;
+       fifo-mode; /* until we fix DMA in SPL */
+       status = "okay";
+};
+
+&sdhci {
+       bus-width = <8>;
+       mmc-hs400-1_8v;
+       mmc-hs400-enhanced-strobe;
+       non-removable;
+       status = "okay";
+};
+
+&uart0 {
+       status = "okay";
+};
+
+&uart2 {
+       status = "okay";
+};
+
+&usb_host0_ehci {
+       status = "okay";
+};
+
+&usb_host0_ohci {
+       status = "okay";
+};
+
+&dwc3_typec0 {
+       status = "okay";
+};
+
+&usb_host1_ehci {
+       status = "okay";
+};
+
+&usb_host1_ohci {
+       status = "okay";
+};
+
+&dwc3_typec1 {
+       status = "okay";
+};
+
+&pinctrl {
+       pmic {
+               pmic_int_l: pmic-int-l {
+                       rockchip,pins =
+                               <1 21 RK_FUNC_GPIO &pcfg_pull_up>;
+               };
+
+               pmic_dvs2: pmic-dvs2 {
+                       rockchip,pins =
+                               <1 18 RK_FUNC_GPIO &pcfg_pull_down>;
+               };
+       };
+};
+
+&gmac {
+        phy-supply = <&vcc_phy>;
+       phy-mode = "rgmii";
+       clock_in_out = "input";
+       snps,reset-gpio = <&gpio3 16 GPIO_ACTIVE_LOW>;
+       snps,reset-active-low;
+       snps,reset-delays-us = <0 10000 50000>;
+       assigned-clocks = <&cru SCLK_RMII_SRC>;
+       assigned-clock-parents = <&clkin_gmac>;
+       pinctrl-names = "default";
+       pinctrl-0 = <&rgmii_pins>;
+       tx_delay = <0x10>;
+       rx_delay = <0x10>;
+       status = "okay";
+};
+
+&spi1 {
+       u-boot,dm-pre-reloc;
+
+       status = "okay";
+
+       #address-cells = <1>;
+       #size-cells = <0>;
+
+       spiflash: w25q32dw@0 {
+               u-boot,dm-pre-reloc;
+
+               compatible = "spi-flash";
+               reg = <0>;
+               spi-max-frequency = <5000000>;
+               spi-cpol;
+               spi-cpha;
+       };
+};
+
+&spi5 {
+       status = "okay";
+};