[PATCH] stmmac: pci: Add support for LS7A bridge chip

[Zhi Li]

Add gmac platform data to support LS7A bridge chip.

Co-developed-by: Hongbin Li <lihong...@loongson.cn>
Signed-off-by: Hongbin Li <lihong...@loongson.cn>
Signed-off-by: Zhi Li <lizh...@loongson.cn>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c 
b/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c
index 272cb47..dab2a40 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c
@@ -138,6 +138,24 @@ static const struct stmmac_pci_info snps_gmac5_pci_info = {
        .setup = snps_gmac5_default_data,
 };
 
+static int loongson_default_data(struct pci_dev *pdev, struct 
plat_stmmacenent_data *plat)
+{
+       common_default_data(plat);
+
+       plat->bus_id = pci_dev_id(pdev);
+       plat->phy_addr = 0;
+       plat->interface = PHY_INTERFACE_MODE_GMII;
+
+       plat->dma_cfg->pbl = 32;
+       plat->dma_cfg->pblx8 = true;
+
+       return 0;
+}
+
+static struct stmmac_pci_info loongson_pci_info = {
+       .setup = loongson_default_data;
+};
+
 /**
  * stmmac_pci_probe
  *
@@ -204,6 +222,8 @@ static int stmmac_pci_probe(struct pci_dev *pdev,
        res.addr = pcim_iomap_table(pdev)[i];
        res.wol_irq = pdev->irq;
        res.irq = pdev->irq;
+       if (pdev->vendor == PCI_VENDOR_ID_LOONGSON)
+               res.lpi_irq = pdev->irq + 1;
 
        return stmmac_dvr_probe(&pdev->dev, plat, &res);
 }
@@ -273,11 +293,13 @@ static SIMPLE_DEV_PM_OPS(stmmac_pm_ops, 
stmmac_pci_suspend, stmmac_pci_resume);
 
 #define PCI_DEVICE_ID_STMMAC_STMMAC            0x1108
 #define PCI_DEVICE_ID_SYNOPSYS_GMAC5_ID                0x7102
+#define PCI_DEVICE_ID_LOONGSON_GMAC            0x7a03
 
 static const struct pci_device_id stmmac_id_table[] = {
        { PCI_DEVICE_DATA(STMMAC, STMMAC, &stmmac_pci_info) },
        { PCI_DEVICE_DATA(STMICRO, MAC, &stmmac_pci_info) },
        { PCI_DEVICE_DATA(SYNOPSYS, GMAC5_ID, &snps_gmac5_pci_info) },
+       { PCI_DEVICE_DATA(LOONGSON, GMAC, &loongson_pci_info) },
        {}
 };
 
-- 
2.1.0