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net: stmmac: dwmac-loongson: Introduce PCI device info data

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The Loongson GNET device support is about to be added in one of the
next commits. As another preparation for that introduce the PCI device
info data with a setup() callback performing the device-specific
platform data initializations. Currently it is utilized for the
already supported Loongson GMAC device only.

Signed-off-by: Feiyang Chen <chenfeiyang@loongson.cn>
Signed-off-by: Yinggang Gu <guyinggang@loongson.cn>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Acked-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Tested-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Yanteng Si 2024-08-07 21:48:04 +08:00 committed by Paolo Abeni
parent 849dc7341d
commit 0ec04d32b5
1 changed files with 15 additions and 2 deletions
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17
drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c
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@ -11,6 +11,10 @@
#define PCI_DEVICE_ID_LOONGSON_GMAC 0x7a03
struct stmmac_pci_info {
int (*setup)(struct plat_stmmacenet_data *plat);
};
static void loongson_default_data(struct plat_stmmacenet_data *plat)
{
plat->clk_csr = 2; /* clk_csr_i = 20-35MHz & MDC = clk_csr_i/16 */
@ -57,9 +61,14 @@ static int loongson_gmac_data(struct plat_stmmacenet_data *plat)
return 0;
}
static struct stmmac_pci_info loongson_gmac_pci_info = {
.setup = loongson_gmac_data,
};
static int loongson_dwmac_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct plat_stmmacenet_data *plat;
struct stmmac_pci_info *info;
struct stmmac_resources res;
struct device_node *np;
int ret, i, phy_mode;
@ -125,10 +134,14 @@ static int loongson_dwmac_probe(struct pci_dev *pdev, const struct pci_device_id
pci_set_master(pdev);
loongson_gmac_data(plat);
memset(&res, 0, sizeof(res));
res.addr = pcim_iomap_table(pdev)[0];
info = (struct stmmac_pci_info *)id->driver_data;
ret = info->setup(plat);
if (ret)
goto err_disable_device;
res.irq = of_irq_get_byname(np, "macirq");
if (res.irq < 0) {
dev_err(&pdev->dev, "IRQ macirq not found\n");
@ -220,7 +233,7 @@ static SIMPLE_DEV_PM_OPS(loongson_dwmac_pm_ops, loongson_dwmac_suspend,
loongson_dwmac_resume);
static const struct pci_device_id loongson_dwmac_id_table[] = {
{ PCI_DEVICE_DATA(LOONGSON, GMAC, NULL) },
{ PCI_DEVICE_DATA(LOONGSON, GMAC, &loongson_gmac_pci_info) },
{}
};
MODULE_DEVICE_TABLE(pci, loongson_dwmac_id_table);