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add u-boot ethernet support to orange pi one plus (h6)

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This patch adds ethernet support to orange pi one plus. The patch has
been submitted to the mailing list and is being added to the bbappend
for u-boot.

Unfortunately, is doesn't keep ethernet on after kernel boot, as the
kernel dts needs to be synced with the u-boot dts.

Submitted patch waiting for approval on the upstream: https://lore.kernel.org/u-boot/30debca8b31ed4d2cbd64850d48b81ac@posteo.net/T/#t
This commit is contained in:
Anne Macedo 2023-07-12 08:11:36 -03:00
parent 1407c41748
commit 5dcf6c40d4
2 changed files with 59 additions and 0 deletions
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58
recipes-bsp/u-boot/files/0003-sunxi-H6-Enable-Ethernet-on-Orange-Pi-One-Plus.patch Normal file
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@ -0,0 +1,58 @@
From: Anne Macedo <retpolanne@posteo.net>
Date: Tue, 11 Jul 2023 00:39:58 +0000
Subject: [PATCH] sunxi: H6: Enable Ethernet on Orange Pi One Plus
Enable Ethernet on Orange Pi One Plus by using the correct phy for
Realtek RTL8211E instead of the Generic One. Also use CONFIG_MACPWR to
turn on ethernet on startup.
After this patch is applied, a few issues can be seen:
- there's still a PHY reset timed out error that doesn't seem to cause
any impacts to the overall connection
- sometimes the emac driver times out after reset (yellow LED turns on
and never blinks)
For future patches: for now, CONFIG_MACPWR is the only way to enable
Ethernet on boot. There's already code on the dts for using the 3v3-gmac
regulator. However, it is not probed on boot, so it only starts after a
"regulator status" command is issued.
More details about the troubleshooting on [1].
Upstream-Status: Submitted
[1] https://lore.kernel.org/u-boot/4wsvwgy56e2xfgtvioru2tf2ofkqprlts36qggivxogww6pn5j@4jk63zxhzhag/
Signed-off-by: Anne Macedo <retpolanne@posteo.net>
---
arch/arm/dts/sun50i-h6-orangepi-one-plus.dts | 2 +-
configs/orangepi_one_plus_defconfig | 4 ++++
2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/arm/dts/sun50i-h6-orangepi-one-plus.dts b/arch/arm/dts/sun50i-h6-orangepi-one-plus.dts
index 29a081e72a..6427c58f8a 100644
--- a/arch/arm/dts/sun50i-h6-orangepi-one-plus.dts
+++ b/arch/arm/dts/sun50i-h6-orangepi-one-plus.dts
@@ -37,7 +37,7 @@
&mdio {
ext_rgmii_phy: ethernet-phy@1 {
- compatible = "ethernet-phy-ieee802.3-c22";
+ compatible = "ethernet-phy-id001c.c915", "ethernet-phy-ieee802.3-c22" ;
reg = <1>;
};
};
diff --git a/configs/orangepi_one_plus_defconfig b/configs/orangepi_one_plus_defconfig
index aa5f540eb1..a1835492db 100644
--- a/configs/orangepi_one_plus_defconfig
+++ b/configs/orangepi_one_plus_defconfig
@@ -8,3 +8,7 @@ CONFIG_SUNXI_DRAM_H6_LPDDR3=y
# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_OHCI_HCD=y
+CONFIG_SUN8I_EMAC=y
+CONFIG_PHY_REALTEK=y
+CONFIG_PHY_ETHERNET_ID=y
+CONFIG_MACPWR="PD6"

1
recipes-bsp/u-boot/u-boot_%.bbappend
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@ -14,6 +14,7 @@ DEFAULT_PREFERENCE:sun50i = "1"
SRC_URI:append:sunxi = " \ SRC_URI:append:sunxi = " \
file://0001-nanopi_neo_air_defconfig-Enable-eMMC-support.patch \ file://0001-nanopi_neo_air_defconfig-Enable-eMMC-support.patch \
file://0002-Added-nanopi-r1-board-support.patch \ file://0002-Added-nanopi-r1-board-support.patch \
file://0003-sunxi-H6-Enable-Ethernet-on-Orange-Pi-One-Plus.patch \
file://boot.cmd \ file://boot.cmd \
" "