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064e431575
(original text here: https://patchwork.kernel.org/patch/8686761/) On some SOCs PORTS_IMPL register value is never programmed by the BIOS and left at zero value. Which means that no sata ports are avaiable for software. AHCI driver used to cope up with this by fabricating the port_map if the PORTS_IMPL register is read zero, but recent patch broke this workaround as zero value was valid for nvme disks. This patch adds ports-implemented dt bindings as workaround for this issue in a way that DT can dictate the port_map incase where the SOCs does not program it already. This patch is equal to commits: 67f8425d0ee1 ("ipq8064: dts: force AP148 SATA port mapping") 2e7a2c91019c ("ARM: dts: qcom: Move common nodes to ipq8064-v.1.0.dtsi") in the upstream linux kernel. Signed-off-by: Roman Glova <roman_glova@epam.com> Signed-off-by: Christian Lamparter <chunkeey@gmail.com> [added upstream commits, reorg' commit message] |
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