diff options
Diffstat (limited to 'drivers/net/fec_imx.c')
| -rw-r--r-- | drivers/net/fec_imx.c | 34 |
1 files changed, 31 insertions, 3 deletions
diff --git a/drivers/net/fec_imx.c b/drivers/net/fec_imx.c index 1aebee7056..b95c4f056e 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, fec->regs + FEC_MII_SPEED); /* * reading from any PHY's register is done by properly @@ -97,7 +112,7 @@ static int fec_miibus_write(struct mii_bus *bus, int phyAddr, 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, fec->regs + FEC_MII_SPEED); reg = regAddr << FEC_MII_DATA_RA_SHIFT; @@ -290,7 +305,7 @@ static int fec_init(struct eth_device *dev) * Set MII_SPEED = (1/(mii_speed * 2)) * System Clock * and do not drop the Preamble. */ - writel(((imx_get_fecclk() >> 20) / 5) << 1, + writel(((fec_clk_get_rate(fec) >> 20) / 5) << 1, fec->regs + FEC_MII_SPEED); } @@ -612,6 +627,7 @@ static int fec_probe(struct device_d *dev) struct eth_device *edev; struct fec_priv *fec; void *base; + int ret; #ifdef CONFIG_ARCH_IMX27 PCCR0 |= PCCR0_FEC_EN; #endif @@ -628,6 +644,14 @@ static int fec_probe(struct device_d *dev) edev->set_ethaddr = fec_set_hwaddr; edev->parent = dev; + if (IS_ENABLED(CONFIG_COMMON_CLK)) { + fec->clk = clk_get(dev, NULL); + if (IS_ERR(fec->clk)) { + ret = PTR_ERR(fec->clk); + goto err_free; + } + } + fec->regs = dev_request_mem_region(dev, 0); /* Reset chip. */ @@ -682,6 +706,10 @@ static int fec_probe(struct device_d *dev) eth_register(edev); return 0; + +err_free: + free(fec); + return ret; } static void fec_remove(struct device_d *dev) |