diff options
| author | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2025-02-24 09:26:50 +0000 |
|---|---|---|
| committer | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2025-04-04 14:29:41 +0100 |
| commit | 2b8cbc607eac050bf8b9938d531b0ed8e163090e (patch) | |
| tree | 6518bf3007693f8ad1809d1d145b062c801c288c | |
| parent | 548145c8f0b831a5d42c69bafb6ad5b95d127002 (diff) | |
net: stmmac: thead: use rgmii_clock() for RGMII clock rate
Switch to using rgmii_clock() to get the RGMII TXC rate, and calculate
the divisor from the parent clock rate and the rate indicated by
rgmii_clock().
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac-thead.c | 16 |
1 files changed, 5 insertions, 11 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-thead.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-thead.c index ddb1d8aba321..f16fa341aadb 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-thead.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-thead.c @@ -109,6 +109,7 @@ static void thead_dwmac_fix_speed(void *priv, int speed, unsigned int mode) struct plat_stmmacenet_data *plat; struct thead_dwmac *dwmac = priv; unsigned long rate; + long tx_rate; u32 div, reg; plat = dwmac->plat; @@ -131,21 +132,14 @@ static void thead_dwmac_fix_speed(void *priv, int speed, unsigned int mode) writel(0, dwmac->apb_base + GMAC_PLLCLK_DIV); - switch (speed) { - case SPEED_1000: - div = rate / GMAC_GMII_RGMII_RATE; - break; - case SPEED_100: - div = rate / GMAC_MII_RATE; - break; - case SPEED_10: - div = rate * 10 / GMAC_MII_RATE; - break; - default: + tx_rate = rgmii_clock(speed); + if (tx_rate < 0) { dev_err(dwmac->dev, "invalid speed %d\n", speed); return; } + div = rate / tx_rate; + reg = FIELD_PREP(GMAC_PLLCLK_DIV_EN, 1) | FIELD_PREP(GMAC_PLLCLK_DIV_NUM, div); writel(reg, dwmac->apb_base + GMAC_PLLCLK_DIV); |