Add the i.MX8MP PCIe support. Signed-off-by: Richard Zhu <hongxing.zhu@xxxxxxx> --- drivers/pci/controller/dwc/pci-imx6.c | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c index bb662f90d4f3..4d34f0c88550 100644 --- a/drivers/pci/controller/dwc/pci-imx6.c +++ b/drivers/pci/controller/dwc/pci-imx6.c @@ -51,6 +51,7 @@ enum imx6_pcie_variants { IMX7D, IMX8MQ, IMX8MM, + IMX8MP, }; #define IMX6_PCIE_FLAG_IMX6_PHY BIT(0) @@ -379,6 +380,7 @@ static void imx6_pcie_assert_core_reset(struct imx6_pcie *imx6_pcie) reset_control_assert(imx6_pcie->pciephy_reset); fallthrough; case IMX8MM: + case IMX8MP: reset_control_assert(imx6_pcie->apps_reset); break; case IMX6SX: @@ -407,7 +409,8 @@ static void imx6_pcie_assert_core_reset(struct imx6_pcie *imx6_pcie) static unsigned int imx6_pcie_grp_offset(const struct imx6_pcie *imx6_pcie) { WARN_ON(imx6_pcie->drvdata->variant != IMX8MQ && - imx6_pcie->drvdata->variant != IMX8MM); + imx6_pcie->drvdata->variant != IMX8MM && + imx6_pcie->drvdata->variant != IMX8MP); return imx6_pcie->controller_id == 1 ? IOMUXC_GPR16 : IOMUXC_GPR14; } @@ -448,6 +451,7 @@ static int imx6_pcie_enable_ref_clk(struct imx6_pcie *imx6_pcie) break; case IMX8MM: case IMX8MQ: + case IMX8MP: ret = clk_prepare_enable(imx6_pcie->pcie_aux); if (ret) { dev_err(dev, "unable to enable pcie_aux clock\n"); @@ -503,6 +507,7 @@ static int imx6_pcie_clk_enable(struct imx6_pcie *imx6_pcie) switch (imx6_pcie->drvdata->variant) { case IMX8MM: + case IMX8MP: if (phy_power_on(imx6_pcie->phy)) dev_err(dev, "unable to power on PHY\n"); break; @@ -603,6 +608,7 @@ static int imx6_pcie_deassert_core_reset(struct imx6_pcie *imx6_pcie) reset_control_deassert(imx6_pcie->pciephy_reset); break; case IMX8MM: + case IMX8MP: if (phy_init(imx6_pcie->phy)) dev_err(dev, "waiting for phy ready timeout!\n"); break; @@ -678,6 +684,7 @@ static void imx6_pcie_init_phy(struct imx6_pcie *imx6_pcie) { switch (imx6_pcie->drvdata->variant) { case IMX8MM: + case IMX8MP: /* * The PHY initialization had been done in the PHY * driver, break here directly. @@ -823,6 +830,7 @@ static void imx6_pcie_ltssm_enable(struct device *dev) case IMX7D: case IMX8MQ: case IMX8MM: + case IMX8MP: reset_control_deassert(imx6_pcie->apps_reset); break; } @@ -938,6 +946,7 @@ static void imx6_pcie_host_exit(struct pcie_port *pp) imx6_pcie_clk_disable(imx6_pcie); switch (imx6_pcie->drvdata->variant) { case IMX8MM: + case IMX8MP: if (phy_power_off(imx6_pcie->phy)) dev_err(dev, "unable to power off phy\n"); phy_exit(imx6_pcie->phy); @@ -972,6 +981,7 @@ static void imx6_pcie_ltssm_disable(struct device *dev) break; case IMX7D: case IMX8MM: + case IMX8MP: reset_control_assert(imx6_pcie->apps_reset); break; default: @@ -1028,6 +1038,7 @@ static int imx6_pcie_suspend_noirq(struct device *dev) imx6_pcie_clk_disable(imx6_pcie); switch (imx6_pcie->drvdata->variant) { case IMX8MM: + case IMX8MP: if (phy_power_off(imx6_pcie->phy)) dev_err(dev, "unable to power off PHY\n"); phy_exit(imx6_pcie->phy); @@ -1177,6 +1188,7 @@ static int imx6_pcie_probe(struct platform_device *pdev) } break; case IMX8MM: + case IMX8MP: imx6_pcie->pcie_aux = devm_clk_get(dev, "pcie_aux"); if (IS_ERR(imx6_pcie->pcie_aux)) return dev_err_probe(dev, PTR_ERR(imx6_pcie->pcie_aux), @@ -1327,6 +1339,10 @@ static const struct imx6_pcie_drvdata drvdata[] = { .variant = IMX8MM, .flags = IMX6_PCIE_FLAG_SUPPORTS_SUSPEND, }, + [IMX8MP] = { + .variant = IMX8MP, + .flags = IMX6_PCIE_FLAG_SUPPORTS_SUSPEND, + }, }; static const struct of_device_id imx6_pcie_of_match[] = { @@ -1336,6 +1352,7 @@ static const struct of_device_id imx6_pcie_of_match[] = { { .compatible = "fsl,imx7d-pcie", .data = &drvdata[IMX7D], }, { .compatible = "fsl,imx8mq-pcie", .data = &drvdata[IMX8MQ], }, { .compatible = "fsl,imx8mm-pcie", .data = &drvdata[IMX8MM], }, + { .compatible = "fsl,imx8mp-pcie", .data = &drvdata[IMX8MP], }, {}, }; -- 2.25.1