From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Sagar Shrikant Kadam <sagar.kadam@sifive.com>,
Palmer Dabbelt <palmerdabbelt@google.com>,
Sasha Levin <sashal@kernel.org>,
devicetree@vger.kernel.org, linux-riscv@lists.infradead.org
Subject: [PATCH AUTOSEL 5.10 29/45] dts: phy: fix missing mdio device and probe failure of vsc8541-01 device
Date: Tue, 19 Jan 2021 20:25:46 -0500 [thread overview]
Message-ID: <20210120012602.769683-29-sashal@kernel.org> (raw)
In-Reply-To: <20210120012602.769683-1-sashal@kernel.org>
From: Sagar Shrikant Kadam <sagar.kadam@sifive.com>
[ Upstream commit be969b7cfbcfa8a835a528f1dc467f0975c6d883 ]
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>
---
arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts b/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts
index 4a2729f5ca3f0..60846e88ae4b1 100644
--- a/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts
+++ b/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts
@@ -88,6 +88,7 @@ ð0 {
phy-mode = "gmii";
phy-handle = <&phy0>;
phy0: ethernet-phy@0 {
+ compatible = "ethernet-phy-id0007.0771";
reg = <0>;
};
};
--
2.27.0
next prev parent reply other threads:[~2021-01-20 2:42 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-20 1:25 [PATCH AUTOSEL 5.10 01/45] ASoC: Intel: haswell: Add missing pm_ops Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 02/45] ASoC: rt711: mutex between calibration and power state changes Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 03/45] SUNRPC: Handle TCP socket sends with kernel_sendpage() again Sasha Levin
2021-02-08 19:34 ` Trond Myklebust
2021-02-08 19:48 ` Chuck Lever
2021-02-08 20:12 ` Trond Myklebust
2021-02-08 20:17 ` Chuck Lever
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 04/45] ASoC: AMD Renoir - add DMI entry for Lenovo ThinkPad E14 Gen 2 Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 05/45] HID: multitouch: Enable multi-input for Synaptics pointstick/touchpad device Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 06/45] HID: sony: select CONFIG_CRC32 Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 07/45] dm integrity: select CRYPTO_SKCIPHER Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 08/45] x86/hyperv: Fix kexec panic/hang issues Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 09/45] scsi: ufs: Relax the condition of UFSHCI_QUIRK_SKIP_MANUAL_WB_FLUSH_CTRL Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 10/45] scsi: ufs: Correct the LUN used in eh_device_reset_handler() callback Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 11/45] scsi: qedi: Correct max length of CHAP secret Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 12/45] scsi: scsi_debug: Fix memleak in scsi_debug_init() Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 13/45] scsi: sd: Suppress spurious errors when WRITE SAME is being disabled Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 14/45] riscv: Fix kernel time_init() Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 15/45] riscv: Fix sifive serial driver Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 16/45] riscv: Enable interrupts during syscalls with M-Mode Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 17/45] HID: logitech-dj: add the G602 receiver Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 18/45] HID: Ignore battery for Elan touchscreen on ASUS UX550 Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 19/45] clk: tegra30: Add hda clock default rates to clock driver Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 20/45] ALSA: hda/tegra: fix tegra-hda on tegra30 soc Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 21/45] r8152: Add Lenovo Powered USB-C Travel Hub Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 22/45] riscv: cacheinfo: Fix using smp_processor_id() in preemptible Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 23/45] arm64: make atomic helpers __always_inline Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 24/45] xen: Fix event channel callback via INTX/GSI Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 25/45] x86/xen: Add xen_no_vector_callback option to test PCI INTX delivery Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 26/45] x86/xen: Fix xen_hvm_smp_init() when vector callback not available Sasha Levin
2021-01-20 1:35 ` Boris Ostrovsky
2021-01-24 13:11 ` Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 27/45] net: stmmac: use __napi_schedule() for PREEMPT_RT Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 28/45] net: stmmac: Fixed mtu channged by cache aligned Sasha Levin
2021-01-20 6:08 ` Jakub Kicinski
2021-01-20 14:26 ` Sasha Levin
2021-01-21 14:39 ` [Linux-stm32] " Ahmad Fatoum
2021-01-21 16:02 ` Sasha Levin
2021-01-20 1:25 ` Sasha Levin [this message]
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 30/45] dts: phy: add GPIO number and active state used for phy reset Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 31/45] riscv: defconfig: enable gpio support for HiFive Unleashed Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 32/45] drm/amdgpu/psp: fix psp gfx ctrl cmds Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 33/45] drm/amd/display: disable dcn10 pipe split by default Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 34/45] HID: logitech-hidpp: Add product ID for MX Ergo in Bluetooth mode Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 35/45] drm/amd/display: Fix to be able to stop crc calculation Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 36/45] drm/nouveau/bios: fix issue shadowing expansion ROMs Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 37/45] drm/nouveau/privring: ack interrupts the same way as RM Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 38/45] drm/nouveau/i2c/gm200: increase width of aux semaphore owner fields Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 39/45] drm/nouveau/mmu: fix vram heap sizing Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 40/45] drm/nouveau/kms/nv50-: fix case where notifier buffer is at offset 0 Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 41/45] io_uring: flush timeouts that should already have expired Sasha Levin
2021-01-20 1:25 ` [PATCH AUTOSEL 5.10 42/45] libperf tests: If a test fails return non-zero Sasha Levin
2021-01-20 1:26 ` [PATCH AUTOSEL 5.10 43/45] libperf tests: Fail when failing to get a tracepoint id Sasha Levin
2021-01-20 1:26 ` [PATCH AUTOSEL 5.10 44/45] RISC-V: Set current memblock limit Sasha Levin
2021-01-20 1:26 ` [PATCH AUTOSEL 5.10 45/45] RISC-V: Fix maximum allowed phsyical memory for RV32 Sasha Levin
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