netdev - [PATCH net-next v12 06/15] net: stmmac: dwmac-loongson: Split up the platform data initialization

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Message-Id: <e0ea692698171f9c69b80a70607a55805d249c4a.1714046812.git.siyanteng@loongson.cn>
Date: Thu, 25 Apr 2024 21:04:37 +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,
	fancer.lancer@...il.com
Cc: Yanteng Si <siyanteng@...ngson.cn>,
	Jose.Abreu@...opsys.com,
	chenhuacai@...nel.org,
	linux@...linux.org.uk,
	guyinggang@...ngson.cn,
	netdev@...r.kernel.org,
	chris.chenfeiyang@...il.com,
	siyanteng01@...il.com
Subject: [PATCH net-next v12 06/15] net: stmmac: dwmac-loongson: Split up the platform data initialization

Based on IP core classification, loongson has two types of network
devices: GMAC and GNET. GMAC's ip_core id is 0x35/0x37, while GNET's
ip_core id is 0x37/0x10.

Device tables:

device    type    pci_id    snps_id    channel
ls2k1000  gmac    7a03      0x35/0x37   1
ls7a1000  gmac    7a03      0x35/0x37   1
ls2k2000  gnet    7a13      0x10        8
ls7a2000  gnet    7a13      0x37        1

The GMAC device only has a MAC chip inside and needs an
external PHY chip;

To later distinguish 8-channel gnet devices from single-channel
gnet/gmac devices, move rx_queues_to_use loongson_default_data
to loongson_dwmac_probe(). Also move mac_interface to
loongson_default_data().

Signed-off-by: Feiyang Chen <chenfeiyang@...ngson.cn>
Signed-off-by: Yinggang Gu <guyinggang@...ngson.cn>
Signed-off-by: Yanteng Si <siyanteng@...ngson.cn>
---
 .../ethernet/stmicro/stmmac/dwmac-loongson.c  | 20 ++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c
index 4e0838db4259..904e288d0be0 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c
@@ -11,22 +11,20 @@
 
 #define PCI_DEVICE_ID_LOONGSON_GMAC	0x7a03
 
-static int loongson_default_data(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 */
 	plat->has_gmac = 1;
 	plat->force_sf_dma_mode = 1;
 
+	plat->mac_interface = PHY_INTERFACE_MODE_GMII;
+
 	/* Set default value for unicast filter entries */
 	plat->unicast_filter_entries = 1;
 
 	/* Set the maxmtu to a default of JUMBO_LEN */
 	plat->maxmtu = JUMBO_LEN;
 
-	/* Set default number of RX and TX queues to use */
-	plat->tx_queues_to_use = 1;
-	plat->rx_queues_to_use = 1;
-
 	/* Disable Priority config by default */
 	plat->tx_queues_cfg[0].use_prio = false;
 	plat->rx_queues_cfg[0].use_prio = false;
@@ -41,6 +39,12 @@ static int loongson_default_data(struct plat_stmmacenet_data *plat)
 	plat->dma_cfg->pblx8 = true;
 
 	plat->multicast_filter_bins = 256;
+}
+
+static int loongson_gmac_data(struct plat_stmmacenet_data *plat)
+{
+	loongson_default_data(plat);
+
 	return 0;
 }
 
@@ -109,11 +113,10 @@ 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);
+	loongson_gmac_data(plat);
 	pci_enable_msi(pdev);
 	memset(&res, 0, sizeof(res));
 	res.addr = pcim_iomap_table(pdev)[0];
@@ -138,6 +141,9 @@ static int loongson_dwmac_probe(struct pci_dev *pdev, const struct pci_device_id
 		goto err_disable_msi;
 	}
 
+	plat->tx_queues_to_use = 1;
+	plat->rx_queues_to_use = 1;
+
 	ret = stmmac_dvr_probe(&pdev->dev, plat, &res);
 	if (ret)
 		goto err_disable_msi;
-- 
2.31.4