[PATCH net-next 02/10] net: stmmac: xgmac: add more feature parsing from hw cap

Jisheng Zhang
2023-07-23T16:22:19Z

The XGMAC_HWFEAT_GMIISEL bit also indicates whether support 10/100Mbps
or not.
The XGMAC_HWFEAT_HDSEL bit indicates whether support half duplex or
not.
The XGMAC_HWFEAT_ADDMACADRSEL bit indicates whether support Multiple
MAC address registers or not.
The XGMAC_HWFEAT_SMASEL bit indicates whether support SMA (MDIO)
Interface or not.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
---
drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h | 3 +++
drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c | 4 ++++
2 files changed, 7 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h
index 153321fe42c3..81cbb13a101d 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h
+++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h
@@ -111,6 +111,7 @@
#define XGMAC_LPI_TIMER_CTRL 0x000000d4
#define XGMAC_HW_FEATURE0 0x0000011c
#define XGMAC_HWFEAT_SAVLANINS BIT(27)
+#define XGMAC_HWFEAT_ADDMACADRSEL GENMASK(22, 18)
#define XGMAC_HWFEAT_RXCOESEL BIT(16)
#define XGMAC_HWFEAT_TXCOESEL BIT(14)
#define XGMAC_HWFEAT_EEESEL BIT(13)
@@ -121,7 +122,9 @@
#define XGMAC_HWFEAT_MMCSEL BIT(8)
#define XGMAC_HWFEAT_MGKSEL BIT(7)
#define XGMAC_HWFEAT_RWKSEL BIT(6)
+#define XGMAC_HWFEAT_SMASEL BIT(5)
#define XGMAC_HWFEAT_VLHASH BIT(4)
+#define XGMAC_HWFEAT_HDSEL BIT(3)
#define XGMAC_HWFEAT_GMIISEL BIT(1)
#define XGMAC_HW_FEATURE1 0x00000120
#define XGMAC_HWFEAT_L3L4FNUM GENMASK(30, 27)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c
index b09395f5edcb..b5ba4e0cca55 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c
@@ -406,6 +406,10 @@ static int dwxgmac2_get_hw_feature(void __iomem *ioaddr,
dma_cap->pmt_remote_wake_up = (hw_cap & XGMAC_HWFEAT_RWKSEL) >> 6;
dma_cap->vlhash = (hw_cap & XGMAC_HWFEAT_VLHASH) >> 4;
dma_cap->mbps_1000 = (hw_cap & XGMAC_HWFEAT_GMIISEL) >> 1;
+ dma_cap->mbps_10_100 = (hw_cap & XGMAC_HWFEAT_GMIISEL) >> 1;
+ dma_cap->half_duplex = (hw_cap & XGMAC_HWFEAT_HDSEL) >> 3;
+ dma_cap->multi_addr = (hw_cap & XGMAC_HWFEAT_ADDMACADRSEL) >> 18;
+ dma_cap->sma_mdio = (hw_cap & XGMAC_HWFEAT_SMASEL) >> 5;

/* MAC HW feature 1 */
hw_cap = readl(ioaddr + XGMAC_HW_FEATURE1);
--
2.40.1