5 Commits

Author SHA1 Message Date
Mrinmay Sarkar
a05b6d5135 phy: qcom-qmp-pcie: add support for sa8775p
Add support for dual and four lane PHY found on sa8755p platform.

Signed-off-by: Mrinmay Sarkar <quic_msarkar@quicinc.com>
Link: https://lore.kernel.org/r/1689311319-22054-5-git-send-email-quic_msarkar@quicinc.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-07-18 11:37:10 +05:30
Rohit Agarwal
92bd868f52 phy: qcom-qmp: Add support for SDX65 QMP PCIe PHY
The PCIe PHY version used in SDX65 is v5.20 which has different register
offsets compared to the v5.0x and v4.0x PHYs. So separate register defines are
used for init sequence and PHY status.

Signed-off-by: Rohit Agarwal <quic_rohiagar@quicinc.com>
Link: https://lore.kernel.org/r/1679035114-19879-3-git-send-email-quic_rohiagar@quicinc.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-03-31 19:24:24 +05:30
Manivannan Sadhasivam
9ddcd920f8 phy: qcom-qmp-pcie: Fix high latency with 4x2 PHY when ASPM is enabled
The PCIe QMP 4x2 RC PHY generates high latency when ASPM is enabled. This
seem to be fixed by clearing the QPHY_V5_20_PCS_PCIE_PRESET_P10_POST
register of the pcs_misc register space.

Fixes: 2c91bf6bf290 ("phy: qcom-qmp: Add SM8450 PCIe1 PHY support")
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20221102081835.41892-1-manivannan.sadhasivam@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2022-11-10 12:45:45 +05:30
Dmitry Baryshkov
f5682f13b7 phy: qcom-qmp-pcie: Support SM8450 PCIe1 PHY in EP mode
Add support for using PCIe1 (gen4x2) in EP mode on SM8450. The tables to
program are mostly common with the RC mode tables, so only register
difference are split into separate RC and EP tables.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20220927092207.161501-4-dmitry.baryshkov@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2022-10-17 13:14:24 +05:30
Dmitry Baryshkov
25ad4a4cfe phy: qcom-qmp: split allegedly 4.20 and 5.20 PCS registers
Split registers definitions belonging allegedly to 4.20 and 5.20 QMP
PHYs. They are used for the PCIe QMP PHYs, which have no good open
source reference.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20220705094320.1313312-20-dmitry.baryshkov@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2022-07-07 10:36:00 +05:30