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f2ec4723de
After U-Boot initializes PCIe with "pcie enum", Linux fails to detect an NVMe disk on some boot cycles with: phy phy-32f00000.pcie-phy.0: phy poweron failed --> -110 Discussion with NXP identified that the iMX8MP PCIe PHY PLL may fail to lock when re-initialized without a reset cycle [1]. The issue reproduces on 7% of tested hardware platforms, with a 30-40% failure rate per affected device across boot cycles. Insert a reset cycle in the power-on routine to ensure the PHY is initialized from a known state. [1] https://community.nxp.com/t5/i-MX-Processors/iMX8MP-PCIe-initialization-in-U-Boot/m-p/2248437#M242401 Signed-off-by: Rafael Beims <rafael.beims@toradex.com> Cc: stable@vger.kernel.org Link: https://patch.msgid.link/20251223150254.1075221-1-rafael@beims.me Signed-off-by: Vinod Koul <vkoul@kernel.org> |
History
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| .. | ||
| Kconfig | ||
| Makefile | ||
| phy-fsl-imx8-mipi-dphy.c | ||
| phy-fsl-imx8m-pcie.c | ||
| phy-fsl-imx8mq-usb.c | ||
| phy-fsl-imx8qm-hsio.c | ||
| phy-fsl-imx8qm-lvds-phy.c | ||
| phy-fsl-lynx-28g.c | ||
| phy-fsl-samsung-hdmi.c | ||