On Mon, Mar 07, 2022 at 05:07:34PM +0800, Richard Zhu wrote:
> 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(-)
I expect this series will eventually go via the imx6 platform tree.
To avoid you waiting for me when this series is deemed acceptable:
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx>
I will mark it as "handled elsewhere" in the PCI tree patchwork.
Lorenzo
> 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
>
