diff mbox series

[6/6] stmmac: dwmac-mediatek: modify csr_clk value to fix mdio read/write fail

Message ID 1556433009-25759-7-git-send-email-biao.huang@mediatek.com
State Changes Requested
Delegated to: David Miller
Headers show
Series fix some bugs and add some features in stmmac | expand

Commit Message

Biao Huang (黄彪) April 28, 2019, 6:30 a.m. UTC 
The frequency of  csr clock is 66.5MHz, so the csr_clk value should
be 0. Modify the csr_clk value to fix mdio read/write fail issue.

Signed-off-by: Biao Huang <biao.huang@mediatek.com>
---
 .../net/ethernet/stmicro/stmmac/dwmac-mediatek.c   |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c
index bf25629..6b12d0f 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c
@@ -346,8 +346,8 @@  static int mediatek_dwmac_probe(struct platform_device *pdev)
 		return PTR_ERR(plat_dat);
 
 	plat_dat->interface = priv_plat->phy_mode;
-	/* clk_csr_i = 250-300MHz & MDC = clk_csr_i/124 */
-	plat_dat->clk_csr = 5;
+	/* clk_csr_i = 60-100MHz & MDC = clk_csr_i/42 */
+	plat_dat->clk_csr = 0;
 	plat_dat->has_gmac4 = 1;
 	plat_dat->has_gmac = 0;
 	plat_dat->pmt = 0;