[PATCH 14/23] net fec: Switch to clk support
Jean-Christophe PLAGNIOL-VILLARD
plagnioj at jcrosoft.com
Wed Sep 26 12:07:46 EDT 2012
On 13:04 Mon 24 Sep , Sascha Hauer wrote:
> Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
> ---
> drivers/net/fec_imx.c | 27 ++++++++++++++++++++++++---
> drivers/net/fec_imx.h | 1 +
> 2 files changed, 25 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/net/fec_imx.c b/drivers/net/fec_imx.c
> index 6acf6bd..4606558 100644
> --- a/drivers/net/fec_imx.c
> +++ b/drivers/net/fec_imx.c
> @@ -24,6 +24,8 @@
> #include <clock.h>
> #include <xfuncs.h>
> #include <linux/phy.h>
> +#include <linux/clk.h>
> +#include <linux/err.h>
>
> #include <asm/mmu.h>
>
> @@ -43,6 +45,19 @@ struct fec_frame {
> uint8_t head[16]; /* MAC header(6 + 6 + 2) + 2(aligned) */
> };
>
> +#ifdef CONFIG_COMMON_CLK
> +static inline unsigned long fec_clk_get_rate(struct fec_priv *fec)
> +{
> + return clk_get_rate(fec->clk);
> +}
> +#else
> +static inline unsigned long fec_clk_get_rate(struct fec_priv *fec)
> +{
> + return imx_get_fecclk();
> +}
> +#endif
> +
> +
> /*
> * MII-interface related functions
> */
> @@ -54,7 +69,7 @@ static int fec_miibus_read(struct mii_bus *bus, int phyAddr, int regAddr)
> uint32_t phy; /* convenient holder for the PHY */
> uint64_t start;
>
> - writel(((imx_get_fecclk() >> 20) / 5) << 1,
> + writel(((fec_clk_get_rate(fec) >> 20) / 5) << 1,
is the rate changing?
if not put it in the fec will reduce the number function call
Best Regards,
J.
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