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@linaro.org Reviewed-by: Igor Opaniuk igor.opaniuk@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@linaro.org */
+#include <dt-bindings/reset/hisi-reset.h> + &soc { + rst: reset-controller@8a22000 { + compatible = "hisilicon,hi3798cv200-reset"; + reg = <0x8a22000 0x1000>; + #reset-cells = <3>; + }; + usb2: ehci@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