> Subject: Re: [U-Boot] [PATCH V1 5/6] net: fec_mxc: support i.MX8M with > CLK_CCF > > On 22.10.19 05:30, Peng Fan wrote: > > 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. > > > > Signed-off-by: Peng Fan <peng....@nxp.com> > > --- > > drivers/net/fec_mxc.c | 74 > ++++++++++++++++++++++++++++++++++++++++----------- > > drivers/net/fec_mxc.h | 4 +++ > > 2 files changed, 63 insertions(+), 15 deletions(-) > > > > diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c index > > 080dbcf7db..9362aa0d05 100644 > > --- a/drivers/net/fec_mxc.c > > +++ b/drivers/net/fec_mxc.c > > @@ -125,28 +125,29 @@ static int fec_mdio_read(struct ethernet_regs > > *eth, uint8_t phyaddr, > > > > static int fec_get_clk_rate(void *udev, int idx) > > { > > -#if IS_ENABLED(CONFIG_IMX8) > > struct fec_priv *fec; > > struct udevice *dev; > > int ret; > > > > - dev = udev; > > - if (!dev) { > > - ret = uclass_get_device(UCLASS_ETH, idx, &dev); > > - if (ret < 0) { > > - debug("Can't get FEC udev: %d\n", ret); > > - return ret; > > + if (IS_ENABLED(CONFIG_IMX8) || > > + (IS_ENABLED(CONFIG_IMX8M) && > IS_ENABLED(CONFIG_CLK_CCF))) { > > Can't we just drop the IS_ENABLED(CONFIG_IMX8M)? Otherwise we always > need to touch this code when other SoCs will start using CCF.
ok. > > Also can you use CONFIG_IS_ENABLED(CLK_CCF) instead of > IS_ENABLED(CONFIG_CLK_CCF), so we can detect the config options for SPL > and non-SPL separately? FEC will not be used in SPL stage, so I not use CONFIG_IS_ENABLED. But it does not hurt using IS_ENABLED, change in v2. Regards, Peng. > > > + dev = udev; > > + if (!dev) { > > + ret = uclass_get_device(UCLASS_ETH, idx, &dev); > > + if (ret < 0) { > > + debug("Can't get FEC udev: %d\n", ret); > > + return ret; > > + } > > } > > - } > > > > - fec = dev_get_priv(dev); > > - if (fec) > > - return fec->clk_rate; > > + fec = dev_get_priv(dev); > > + if (fec) > > + return fec->clk_rate; > > > > - return -EINVAL; > > -#else > > - return imx_get_fecclk(); > > -#endif > > + return -EINVAL; > > + } else { > > + return imx_get_fecclk(); > > + } > > } > > > > static void fec_mii_setspeed(struct ethernet_regs *eth) @@ -1335,6 > > +1336,49 @@ static int fecmxc_probe(struct udevice *dev) > > return ret; > > } > > > > + priv->clk_rate = clk_get_rate(&priv->ipg_clk); > > + } else if (IS_ENABLED(CONFIG_IMX8M) && > IS_ENABLED(CONFIG_CLK_CCF)) { > > Same questions here as above. > > > + 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; > > + } else { > > You can drop the else branches here and below as the code returns before it > will be evaluated. > > > + ret = clk_enable(&priv->ipg_clk); > > + if(ret) > > + return ret; > > + } > > + > > + ret = clk_get_by_name(dev, "ipg", &priv->ahb_clk); > > This should be "ahb", not "ipg". > > > + if (ret < 0) { > > + debug("Can't get FEC ahb clk: %d\n", ret); > > + return ret; > > + } else { > > + 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); > > } > > > > diff --git a/drivers/net/fec_mxc.h b/drivers/net/fec_mxc.h index > > e5f2dd75c5..723b06a651 100644 > > --- a/drivers/net/fec_mxc.h > > +++ b/drivers/net/fec_mxc.h > > @@ -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; > > }; > > > > _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot