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net: fec_mxc: support i.MX8M with CLK_CCF 

Add more clks for fec_mxc according to Linux Kernel 5.4.0-rc1
drivers/net/ethernet/freescale/fec_main.c.

Since i.MX8MQ not support CLK_CCF, so add a check to restrict
the code only effect when CONFIG_IMX8M and CONFIG_CLK_CCF both defined.

Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Peng Fan 2019-10-25 09:48:02 +00:00 committed by Stefano Babic
parent 81dc2ac557
commit 673f659732
2 changed files with 69 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

55
drivers/net/fec_mxc.c
View File

@ -123,13 +123,21 @@ static int fec_mdio_read(struct ethernet_regs *eth, uint8_t phyaddr,
return val;
}
#ifndef imx_get_fecclk
u32 __weak imx_get_fecclk(void)
{
return 0;
}
#endif
static int fec_get_clk_rate(void *udev, int idx)
{
#if IS_ENABLED(CONFIG_IMX8)
struct fec_priv *fec;
struct udevice *dev;
int ret;
if (IS_ENABLED(CONFIG_IMX8) ||
CONFIG_IS_ENABLED(CLK_CCF)) {
dev = udev;
if (!dev) {
ret = uclass_get_device(UCLASS_ETH, idx, &dev);
@ -144,9 +152,9 @@ static int fec_get_clk_rate(void *udev, int idx)
return fec->clk_rate;
return -EINVAL;
#else
} else {
return imx_get_fecclk();
#endif
}
}
static void fec_mii_setspeed(struct ethernet_regs *eth)
@ -1335,6 +1343,47 @@ static int fecmxc_probe(struct udevice *dev)
return ret;
}
priv->clk_rate = clk_get_rate(&priv->ipg_clk);
} else if (CONFIG_IS_ENABLED(CLK_CCF)) {
ret = clk_get_by_name(dev, "ipg", &priv->ipg_clk);
if (ret < 0) {
debug("Can't get FEC ipg clk: %d\n", ret);
return ret;
}
ret = clk_enable(&priv->ipg_clk);
if(ret)
return ret;
ret = clk_get_by_name(dev, "ahb", &priv->ahb_clk);
if (ret < 0) {
debug("Can't get FEC ahb clk: %d\n", ret);
return ret;
}
ret = clk_enable(&priv->ahb_clk);
if (ret)
return ret;
ret = clk_get_by_name(dev, "enet_out", &priv->clk_enet_out);
if (!ret) {
ret = clk_enable(&priv->clk_enet_out);
if (ret)
return ret;
}
ret = clk_get_by_name(dev, "enet_clk_ref", &priv->clk_ref);
if (!ret) {
ret = clk_enable(&priv->clk_ref);
if (ret)
return ret;
}
ret = clk_get_by_name(dev, "ptp", &priv->clk_ptp);
if (!ret) {
ret = clk_enable(&priv->clk_ptp);
if (ret)
return ret;
}
priv->clk_rate = clk_get_rate(&priv->ipg_clk);
}

4
drivers/net/fec_mxc.h
View File

@ -264,6 +264,10 @@ struct fec_priv {
u32 interface;
#endif
struct clk ipg_clk;
struct clk ahb_clk;
struct clk clk_enet_out;
struct clk clk_ref;
struct clk clk_ptp;
u32 clk_rate;
};