netdev - [PATCH net-next 11/11] net: stmmac: use STMMAC_CSR

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Message-Id: <E1utmmY-00000001s13-0v5M@rmk-PC.armlinux.org.uk>
Date: Wed, 03 Sep 2025 13:40:10 +0100
From: "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>
To: Andrew Lunn <andrew@...n.ch>,
	Heiner Kallweit <hkallweit1@...il.com>
Cc: Alexandre Torgue <alexandre.torgue@...s.st.com>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	linux-arm-kernel@...ts.infradead.org,
	linux-stm32@...md-mailman.stormreply.com,
	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	netdev@...r.kernel.org,
	Paolo Abeni <pabeni@...hat.com>
Subject: [PATCH net-next 11/11] net: stmmac: use STMMAC_CSR_xxx definitions in
 platform glue

Use the STMMAC_CSR_xxx definitions to initialise plat->clk_csr in the
platform glue drivers to make the integer values meaningful.

Signed-off-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c    | 5 +++--
 drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c | 3 ++-
 drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c     | 5 +++--
 3 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
index 3fac3945cbfa..d900b93f46ce 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
@@ -566,7 +566,8 @@ static int intel_mac_finish(struct net_device *ndev,
 
 static void common_default_data(struct plat_stmmacenet_data *plat)
 {
-	plat->clk_csr = 2;	/* clk_csr_i = 20-35MHz & MDC = clk_csr_i/16 */
+	/* clk_csr_i = 20-35MHz & MDC = clk_csr_i/16 */
+	plat->clk_csr = STMMAC_CSR_20_35M;
 	plat->has_gmac = 1;
 	plat->force_sf_dma_mode = 1;
 
@@ -613,7 +614,7 @@ static int intel_mgbe_common_data(struct pci_dev *pdev,
 
 	plat->pdev = pdev;
 	plat->phy_addr = -1;
-	plat->clk_csr = 5;
+	plat->clk_csr = STMMAC_CSR_250_300M;
 	plat->has_gmac = 0;
 	plat->has_gmac4 = 1;
 	plat->force_sf_dma_mode = 0;
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c
index 6fca0fca4892..dd82dc2189e9 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c
@@ -90,7 +90,8 @@ static void loongson_default_data(struct pci_dev *pdev,
 	/* Get bus_id, this can be overwritten later */
 	plat->bus_id = pci_dev_id(pdev);
 
-	plat->clk_csr = 2;	/* clk_csr_i = 20-35MHz & MDC = clk_csr_i/16 */
+	/* clk_csr_i = 20-35MHz & MDC = clk_csr_i/16 */
+	plat->clk_csr = STMMAC_CSR_20_35M;
 	plat->has_gmac = 1;
 	plat->force_sf_dma_mode = 1;
 
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c
index e6a7d0ddac2a..4e3aa611fda8 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c
@@ -21,7 +21,8 @@ struct stmmac_pci_info {
 
 static void common_default_data(struct plat_stmmacenet_data *plat)
 {
-	plat->clk_csr = 2;	/* clk_csr_i = 20-35MHz & MDC = clk_csr_i/16 */
+	/* clk_csr_i = 20-35MHz & MDC = clk_csr_i/16 */
+	plat->clk_csr = STMMAC_CSR_20_35M;
 	plat->has_gmac = 1;
 	plat->force_sf_dma_mode = 1;
 
@@ -74,7 +75,7 @@ static int snps_gmac5_default_data(struct pci_dev *pdev,
 {
 	int i;
 
-	plat->clk_csr = 5;
+	plat->clk_csr = STMMAC_CSR_250_300M;
 	plat->has_gmac4 = 1;
 	plat->force_sf_dma_mode = 1;
 	plat->flags |= STMMAC_FLAG_TSO_EN;
-- 
2.47.2