From: Huacai Chen <chenhuacai@loongson.cn>
Date: Thu, 24 Apr 2025 15:22:09 +0800
Subject: [PATCH] net: stmmac: dwmac-loongson: Add new GMAC's PCI device ID
 support

Add a new GMAC's PCI device ID (0x7a23) support which is used in
Loongson-2K3000/Loongson-3B6000M. The new GMAC device use external PHY,
so it reuses loongson_gmac_data() as the old GMAC device (0x7a03), and
the new GMAC device still doesn't support flow control now.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Yanteng Si <si.yanteng@linux.dev>
Tested-by: Henry Chen <chenx97@aosc.io>
Tested-by: Biao Dong <dongbiao@loongson.cn>
Signed-off-by: Baoqi Zhang <zhangbaoqi@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Link: https://patch.msgid.link/20250424072209.3134762-4-chenhuacai@loongson.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c
@@ -66,7 +66,8 @@
 					 DMA_STATUS_TPS | DMA_STATUS_TI  | \
 					 DMA_STATUS_MSK_COMMON_LOONGSON)
 
-#define PCI_DEVICE_ID_LOONGSON_GMAC	0x7a03
+#define PCI_DEVICE_ID_LOONGSON_GMAC1	0x7a03
+#define PCI_DEVICE_ID_LOONGSON_GMAC2	0x7a23
 #define PCI_DEVICE_ID_LOONGSON_GNET	0x7a13
 #define DWMAC_CORE_MULTICHAN_V1	0x10	/* Loongson custom ID 0x10 */
 #define DWMAC_CORE_MULTICHAN_V2	0x12	/* Loongson custom ID 0x12 */
@@ -372,7 +373,7 @@ static struct mac_device_info *loongson_
 	/* Loongson GMAC doesn't support the flow control. Loongson GNET
 	 * without multi-channel doesn't support the half-duplex link mode.
 	 */
-	if (pdev->device == PCI_DEVICE_ID_LOONGSON_GMAC) {
+	if (pdev->device != PCI_DEVICE_ID_LOONGSON_GNET) {
 		mac->link.caps = MAC_10 | MAC_100 | MAC_1000;
 	} else {
 		if (ld->multichan)
@@ -668,7 +669,8 @@ static SIMPLE_DEV_PM_OPS(loongson_dwmac_
 			 loongson_dwmac_resume);
 
 static const struct pci_device_id loongson_dwmac_id_table[] = {
-	{ PCI_DEVICE_DATA(LOONGSON, GMAC, &loongson_gmac_pci_info) },
+	{ PCI_DEVICE_DATA(LOONGSON, GMAC1, &loongson_gmac_pci_info) },
+	{ PCI_DEVICE_DATA(LOONGSON, GMAC2, &loongson_gmac_pci_info) },
 	{ PCI_DEVICE_DATA(LOONGSON, GNET, &loongson_gnet_pci_info) },
 	{}
 };
