[U-Boot] [PATCH v3 3/3] poplar: enable Ethernet driver support

[Shawn Guo]

The 'phy' reset of gmac device in kernel device tree is not generic
enough for u-boot to use, so we need to overwrite the 'resets' property
as needed.  With this device tree fixup and poplar_defconfig changes,
Ethernet starts working on Poplar board.

Signed-off-by: Shawn Guo <shawn.guo at linaro.org>
Reviewed-by: Igor Opaniuk <igor.opaniuk at linaro.org>
---
 arch/arm/dts/hi3798cv200-u-boot.dtsi | 14 ++++++++++++++
 configs/poplar_defconfig             |  3 +++
 2 files changed, 17 insertions(+)

diff --git a/arch/arm/dts/hi3798cv200-u-boot.dtsi b/arch/arm/dts/hi3798cv200-u-boot.dtsi
index 7844c5208c5d..2ca943f64e59 100644
--- a/arch/arm/dts/hi3798cv200-u-boot.dtsi
+++ b/arch/arm/dts/hi3798cv200-u-boot.dtsi
@@ -8,7 +8,15 @@
  * (C) Copyright 2017 Jorge Ramirez-Ortiz <jorge.ramirez-ortiz at linaro.org>
  */
 
+#include <dt-bindings/reset/hisi-reset.h>
+
 &soc {
+	rst: reset-controller at 8a22000 {
+		compatible = "hisilicon,hi3798cv200-reset";
+		reg = <0x8a22000 0x1000>;
+		#reset-cells = <3>;
+	};
+
 	usb2: ehci at 9890000 {
 		compatible = "generic-ehci";
 		reg = <0x9890000 0x100>;
@@ -16,6 +24,12 @@
 	};
 };
 
+&gmac1 {
+	resets = <&rst 0xcc 9  HISI_RESET_ACTIVE_HIGH>,
+		 <&rst 0xcc 11 HISI_RESET_ACTIVE_HIGH>,
+		 <&rst 0xcc 13 HISI_RESET_ACTIVE_LOW>;
+};
+
 &uart0 {
 	clock = <75000000>;
 	status = "okay";
diff --git a/configs/poplar_defconfig b/configs/poplar_defconfig
index 81bd3702e42a..76ab5eb70e7e 100644
--- a/configs/poplar_defconfig
+++ b/configs/poplar_defconfig
@@ -19,6 +19,9 @@ CONFIG_FASTBOOT_FLASH_MMC_DEV=0
 CONFIG_DM_MMC=y
 CONFIG_MMC_DW=y
 CONFIG_MMC_DW_K3=y
+CONFIG_DM_ETH=y
+CONFIG_HIGMACV300_ETH=y
+CONFIG_RESET_HISILICON=y
 CONFIG_USB=y
 CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_EHCI_GENERIC=y
-- 
2.18.0