arm64: dts: meson: sm1: add Ethernet PHY reset line for ODROID-C4/HC4
authorDongjin Kim <tobetter@gmail.com>
Thu, 26 Aug 2021 03:28:32 +0000 (12:28 +0900)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 18 Nov 2021 18:16:46 +0000 (19:16 +0100)
commitd5e4939b5e0cbda6058be8bbe8225fb09675eaa9
tree51b6ab2514da5a03a7be62e7f9dcc871955a4ef1
parent03060aec7281d5dd5e1460e322771c5b011d4117
arm64: dts: meson: sm1: add Ethernet PHY reset line for ODROID-C4/HC4

[ Upstream commit 9d02214f8332d5dbbcce3d6c5c915e54d43a0c46 ]

This patch is to fix an issue that the ethernet link doesn't come up
when using ip link set down/up:
   [   11.428114] meson8b-dwmac ff3f0000.ethernet eth0: Link is Down
   [   14.428595] meson8b-dwmac ff3f0000.ethernet eth0: PHY [0.0:00] driver [RTL8211F Gigabit Ethernet] (irq=31)
   [   14.428610] meson8b-dwmac ff3f0000.ethernet: Failed to reset the dma
   [   14.428974] meson8b-dwmac ff3f0000.ethernet eth0: stmmac_hw_setup: DMA engine initialization failed
   [   14.711185] meson8b-dwmac ff3f0000.ethernet eth0: stmmac_open: Hw setup failed

This fix refers to two commits applied for ODROID-N2 (G12B).
    commit 658e4129bb81 ("arm64: dts: meson: g12b: odroid-n2: add the Ethernet PHY reset line")
    commit 1c7412530d5d0 ("arm64: dts: meson: g12b: odroid-n2: fix PHY deassert timing requirements")

Fixes: 88d537bc92ca ("arm64: dts: meson: convert meson-sm1-odroid-c4 to dtsi")
Signed-off-by: Dongjin Kim <tobetter@gmail.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
[narmstrong: added fixes tag and typo in commit log]
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/YScKYFWlYymgGw3l@anyang-linuxfactory-or-kr
Signed-off-by: Sasha Levin <sashal@kernel.org>
arch/arm64/boot/dts/amlogic/meson-sm1-odroid.dtsi