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[ Upstream commit9d02214f83] 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). commit658e4129bb("arm64: dts: meson: g12b: odroid-n2: add the Ethernet PHY reset line") commit1c7412530d("arm64: dts: meson: g12b: odroid-n2: fix PHY deassert timing requirements") Fixes:88d537bc92("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>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.