From: "Jan Petrous (OSS)" <jan.petrous@xxxxxxxxxxx>
Utilize a new helper function rgmii_clock().
Reviewed-by: Andrew Lunn <andrew@xxxxxxx>
Reviewed-by: Russell King (Oracle) <rmk+kernel@xxxxxxxxxxxxxxx>
Signed-off-by: Jan Petrous (OSS) <jan.petrous@xxxxxxxxxxx>
---
drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c | 18 +++++-------------
1 file changed, 5 insertions(+), 13 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c
index a6ff02d905a9..eabc4da9e1a9 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c
@@ -21,10 +21,7 @@
#include "stmmac_platform.h"
-#define DWMAC_125MHZ 125000000
#define DWMAC_50MHZ 50000000
-#define DWMAC_25MHZ 25000000
-#define DWMAC_2_5MHZ 2500000
#define IS_PHY_IF_MODE_RGMII(iface) (iface == PHY_INTERFACE_MODE_RGMII || \
iface == PHY_INTERFACE_MODE_RGMII_ID || \
@@ -140,7 +137,7 @@ static void stih4xx_fix_retime_src(void *priv, u32 spd, unsigned int mode)
struct sti_dwmac *dwmac = priv;
u32 src = dwmac->tx_retime_src;
u32 reg = dwmac->ctrl_reg;
- u32 freq = 0;
+ long freq = 0;
if (dwmac->interface == PHY_INTERFACE_MODE_MII) {
src = TX_RETIME_SRC_TXCLK;
@@ -153,19 +150,14 @@ static void stih4xx_fix_retime_src(void *priv, u32 spd, unsigned int mode)
}
} else if (IS_PHY_IF_MODE_RGMII(dwmac->interface)) {
/* On GiGa clk source can be either ext or from clkgen */
- if (spd == SPEED_1000) {
- freq = DWMAC_125MHZ;
- } else {
+ freq = rgmii_clock(spd);
+
+ if (spd != SPEED_1000 && freq > 0)
/* Switch to clkgen for these speeds */
src = TX_RETIME_SRC_CLKGEN;
- if (spd == SPEED_100)
- freq = DWMAC_25MHZ;
- else if (spd == SPEED_10)
- freq = DWMAC_2_5MHZ;
- }
}
- if (src == TX_RETIME_SRC_CLKGEN && freq)
+ if (src == TX_RETIME_SRC_CLKGEN && freq > 0)
clk_set_rate(dwmac->clk, freq);
regmap_update_bits(dwmac->regmap, reg, STIH4XX_RETIME_SRC_MASK,
--
2.47.0
