Add support for the IMX8MM SoC by adding driver data with the compatible
string of the GPR controller.

Signed-off-by: Tim Harvey <[email protected]>
---
 drivers/pci/pcie_dw_imx.c | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/pcie_dw_imx.c b/drivers/pci/pcie_dw_imx.c
index a2ee228224b5..10d926c30645 100644
--- a/drivers/pci/pcie_dw_imx.c
+++ b/drivers/pci/pcie_dw_imx.c
@@ -45,6 +45,10 @@
 #define IMX8M_GPR_PCIE_CLK_REQ_OVERRIDE_EN     BIT(10)
 #define IMX8M_GPR_PCIE_CLK_REQ_OVERRIDE                BIT(11)
 
+struct pcie_chip_info {
+       const char *gpr;
+};
+
 struct pcie_dw_imx {
        /* Must be first member of the struct */
        struct pcie_dw                  dw;
@@ -54,6 +58,15 @@ struct pcie_dw_imx {
        struct reset_ctl                apps_reset;
        struct phy                      phy;
        struct udevice                  *vpcie;
+       struct pcie_chip_info           *info;
+};
+
+static const struct pcie_chip_info imx8mm_chip_info = {
+       .gpr = "fsl,imx8mm-iomuxc-gpr",
+};
+
+static const struct pcie_chip_info imx8mp_chip_info = {
+       .gpr = "fsl,imx8mp-iomuxc-gpr",
 };
 
 static void pcie_dw_configure(struct pcie_dw_imx *priv, u32 cap_speed)
@@ -246,6 +259,8 @@ static int pcie_dw_imx_of_to_plat(struct udevice *dev)
        ofnode gpr;
        int ret;
 
+       priv->info = (void *)dev_get_driver_data(dev);
+
        /* Get the controller base address */
        priv->dw.dbi_base = (void *)dev_read_addr_name(dev, "dbi");
        if ((fdt_addr_t)priv->dw.dbi_base == FDT_ADDR_T_NONE) {
@@ -287,7 +302,7 @@ static int pcie_dw_imx_of_to_plat(struct udevice *dev)
                goto err_phy;
        }
 
-       gpr = ofnode_by_compatible(ofnode_null(), "fsl,imx8mp-iomuxc-gpr");
+       gpr = ofnode_by_compatible(ofnode_null(), priv->info->gpr);
        if (ofnode_equal(gpr, ofnode_null())) {
                dev_err(dev, "unable to find GPR node\n");
                ret = -ENODEV;
@@ -322,7 +337,8 @@ static const struct dm_pci_ops pcie_dw_imx_ops = {
 };
 
 static const struct udevice_id pcie_dw_imx_ids[] = {
-       { .compatible = "fsl,imx8mp-pcie" },
+       { .compatible = "fsl,imx8mm-pcie", .data = (ulong)&imx8mm_chip_info, },
+       { .compatible = "fsl,imx8mp-pcie", .data = (ulong)&imx8mp_chip_info, },
        { }
 };
 
-- 
2.25.1

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