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Message-Id: <aee820a3c4293c8172edda27ad4eb9cf5eaead5e.1702990507.git.siyanteng@loongson.cn> Date: Tue, 19 Dec 2023 22:17:05 +0800 From: Yanteng Si <siyanteng@...ngson.cn> To: andrew@...n.ch, hkallweit1@...il.com, peppe.cavallaro@...com, alexandre.torgue@...s.st.com, joabreu@...opsys.com Cc: Yanteng Si <siyanteng@...ngson.cn>, fancer.lancer@...il.com, Jose.Abreu@...opsys.com, chenhuacai@...ngson.cn, linux@...linux.org.uk, guyinggang@...ngson.cn, netdev@...r.kernel.org, chris.chenfeiyang@...il.com Subject: [PATCH net-next v7 2/9] net: stmmac: dwmac-loongson: Refactor code for loongson_dwmac_probe() Add a setup() function to initialize data, and simplify code for loongson_dwmac_probe(). Signed-off-by: Yanteng Si <siyanteng@...ngson.cn> Signed-off-by: Feiyang Chen <chenfeiyang@...ngson.cn> Signed-off-by: Yinggang Gu <guyinggang@...ngson.cn> --- .../ethernet/stmicro/stmmac/dwmac-loongson.c | 68 +++++++++++++------ 1 file changed, 47 insertions(+), 21 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c index 9e40c28d453a..56d1fd8c61e1 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c @@ -9,7 +9,12 @@ #include <linux/of_irq.h> #include "stmmac.h" -static int loongson_default_data(struct plat_stmmacenet_data *plat) +struct stmmac_pci_info { + int (*setup)(struct pci_dev *pdev, struct plat_stmmacenet_data *plat); +}; + +static void loongson_default_data(struct pci_dev *pdev, + struct plat_stmmacenet_data *plat) { plat->clk_csr = 2; /* clk_csr_i = 20-35MHz & MDC = clk_csr_i/16 */ plat->has_gmac = 1; @@ -34,23 +39,38 @@ static int loongson_default_data(struct plat_stmmacenet_data *plat) /* Disable RX queues routing by default */ plat->rx_queues_cfg[0].pkt_route = 0x0; +} + +static int loongson_gmac_data(struct pci_dev *pdev, + struct plat_stmmacenet_data *plat) +{ + loongson_default_data(pdev, plat); + + plat->multicast_filter_bins = 256; + + plat->mdio_bus_data->phy_mask = 0; - /* Default to phy auto-detection */ plat->phy_addr = -1; + plat->phy_interface = PHY_INTERFACE_MODE_RGMII_ID; plat->dma_cfg->pbl = 32; plat->dma_cfg->pblx8 = true; - plat->multicast_filter_bins = 256; return 0; } -static int loongson_dwmac_probe(struct pci_dev *pdev, const struct pci_device_id *id) +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) { + int ret, i, bus_id, phy_mode; struct plat_stmmacenet_data *plat; + struct stmmac_pci_info *info; struct stmmac_resources res; struct device_node *np; - int ret, i, phy_mode; np = dev_of_node(&pdev->dev); @@ -69,22 +89,22 @@ static int loongson_dwmac_probe(struct pci_dev *pdev, const struct pci_device_id if (!plat->mdio_bus_data) return -ENOMEM; + plat->dma_cfg = devm_kzalloc(&pdev->dev, sizeof(*plat->dma_cfg), + GFP_KERNEL); + if (!plat->dma_cfg) + return -ENOMEM; + plat->mdio_node = of_get_child_by_name(np, "mdio"); if (plat->mdio_node) { dev_info(&pdev->dev, "Found MDIO subnode\n"); plat->mdio_bus_data->needs_reset = true; } - plat->dma_cfg = devm_kzalloc(&pdev->dev, sizeof(*plat->dma_cfg), GFP_KERNEL); - if (!plat->dma_cfg) { - ret = -ENOMEM; - goto err_put_node; - } - /* Enable pci device */ ret = pci_enable_device(pdev); if (ret) { - dev_err(&pdev->dev, "%s: ERROR: failed to enable device\n", __func__); + dev_err(&pdev->dev, "%s: ERROR: failed to enable device\n", + __func__); goto err_put_node; } @@ -98,9 +118,16 @@ static int loongson_dwmac_probe(struct pci_dev *pdev, const struct pci_device_id break; } - plat->bus_id = of_alias_get_id(np, "ethernet"); - if (plat->bus_id < 0) - plat->bus_id = pci_dev_id(pdev); + pci_set_master(pdev); + + info = (struct stmmac_pci_info *)id->driver_data; + ret = info->setup(pdev, plat); + if (ret) + goto err_disable_device; + + bus_id = of_alias_get_id(np, "ethernet"); + if (bus_id >= 0) + plat->bus_id = bus_id; phy_mode = device_get_phy_mode(&pdev->dev); if (phy_mode < 0) { @@ -110,11 +137,7 @@ static int loongson_dwmac_probe(struct pci_dev *pdev, const struct pci_device_id } plat->phy_interface = phy_mode; - plat->mac_interface = PHY_INTERFACE_MODE_GMII; - pci_set_master(pdev); - - loongson_default_data(plat); pci_enable_msi(pdev); memset(&res, 0, sizeof(res)); res.addr = pcim_iomap_table(pdev)[0]; @@ -128,7 +151,8 @@ static int loongson_dwmac_probe(struct pci_dev *pdev, const struct pci_device_id res.wol_irq = of_irq_get_byname(np, "eth_wake_irq"); if (res.wol_irq < 0) { - dev_info(&pdev->dev, "IRQ eth_wake_irq not found, using macirq\n"); + dev_info(&pdev->dev, + "IRQ eth_wake_irq not found, using macirq\n"); res.wol_irq = res.irq; } @@ -212,8 +236,10 @@ static int __maybe_unused loongson_dwmac_resume(struct device *dev) static SIMPLE_DEV_PM_OPS(loongson_dwmac_pm_ops, loongson_dwmac_suspend, loongson_dwmac_resume); +#define PCI_DEVICE_ID_LOONGSON_GMAC 0x7a03 + static const struct pci_device_id loongson_dwmac_id_table[] = { - { PCI_VDEVICE(LOONGSON, 0x7a03) }, + { PCI_DEVICE_DATA(LOONGSON, GMAC, &loongson_gmac_pci_info) }, {} }; MODULE_DEVICE_TABLE(pci, loongson_dwmac_id_table); -- 2.31.4
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