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Sagar Shrikant Kadam 4685e186ab dts: phy: fix missing mdio device and probe failure of vsc8541-01 device [ Upstream commit `be969b7cfb` ] HiFive unleashed A00 board has VSC8541-01 ethernet phy, this device is identified as a Revision B device as described in device identification registers. In order to use this phy in the unmanaged mode, it requires a specific reset sequence of logical 0-1-0-1 transition on the NRESET pin as documented here [1]. Currently, the bootloader (fsbl or u-boot-spl) takes care of the phy reset. If due to some reason the phy device hasn't received the reset by the prior stages before the linux macb driver comes into the picture, the MACB mii bus gets probed but the mdio scan fails and is not even able to read the phy ID registers. It gives an error message: "libphy: MACB_mii_bus: probed mdio_bus 10090000.ethernet-ffffffff: MDIO device at address 0 is missing." Thus adding the device OUI (Organizationally Unique Identifier) to the phy device node helps to probe the phy device. [1]: VSC8541-01 datasheet: https://www.mouser.com/ds/2/523/Microsemi_VSC8541-01_Datasheet_10496_V40-1148034.pdf Signed-off-by: Sagar Shrikant Kadam <sagar.kadam@sifive.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2021-01-27 11:55:01 +01:00
arch	dts: phy: fix missing mdio device and probe failure of vsc8541-01 device	2021-01-27 11:55:01 +01:00
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crypto	crypto: xor - Fix divide error in do_xor_speed()	2021-01-27 11:54:52 +01:00
Documentation	x86/xen: Add xen_no_vector_callback option to test PCI INTX delivery	2021-01-27 11:55:01 +01:00
drivers	xen: Fix event channel callback via INTX/GSI	2021-01-27 11:55:00 +01:00
fs	fs: fix lazytime expiration handling in __writeback_single_inode()	2021-01-27 11:54:53 +01:00
include	xen: Fix event channel callback via INTX/GSI	2021-01-27 11:55:00 +01:00
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kernel	bpf: Fix helper bpf_map_peek_elem_proto pointing to wrong callback	2021-01-23 16:03:59 +01:00
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net	SUNRPC: Handle TCP socket sends with kernel_sendpage() again	2021-01-27 11:54:57 +01:00
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sound	ALSA: hda/tegra: fix tegra-hda on tegra30 soc	2021-01-27 11:55:00 +01:00
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Makefile	Linux 5.10.10	2021-01-23 16:04:06 +01:00
README

README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
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    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
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the problems which may result by upgrading your kernel.