diff options
| -rw-r--r-- | arch/arm/cpu/armv7/mx6/clock.c | 8 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-mx6/clock.h | 9 | ||||
| -rw-r--r-- | board/freescale/mx6slevk/mx6slevk.c | 2 |
3 files changed, 16 insertions, 3 deletions
diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c index f12bba2..5617a41 100644 --- a/arch/arm/cpu/armv7/mx6/clock.c +++ b/arch/arm/cpu/armv7/mx6/clock.c @@ -323,7 +323,7 @@ static u32 get_mmdc_ch0_clk(void) #endif #ifdef CONFIG_FEC_MXC -int enable_fec_anatop_clock(void) +int enable_fec_anatop_clock(enum enet_freq freq) { u32 reg = 0; s32 timeout = 100000; @@ -331,7 +331,13 @@ int enable_fec_anatop_clock(void) struct anatop_regs __iomem *anatop = (struct anatop_regs __iomem *)ANATOP_BASE_ADDR; + if (freq < ENET_25MHz || freq > ENET_125MHz) + return -EINVAL; + reg = readl(&anatop->pll_enet); + reg &= ~BM_ANADIG_PLL_ENET_DIV_SELECT; + reg |= freq; + if ((reg & BM_ANADIG_PLL_ENET_POWERDOWN) || (!(reg & BM_ANADIG_PLL_ENET_LOCK))) { reg &= ~BM_ANADIG_PLL_ENET_POWERDOWN; diff --git a/arch/arm/include/asm/arch-mx6/clock.h b/arch/arm/include/asm/arch-mx6/clock.h index 93f29a7..e31ba0a 100644 --- a/arch/arm/include/asm/arch-mx6/clock.h +++ b/arch/arm/include/asm/arch-mx6/clock.h @@ -42,6 +42,13 @@ enum mxc_clock { MXC_I2C_CLK, }; +enum enet_freq { + ENET_25MHz, + ENET_50MHz, + ENET_100MHz, + ENET_125MHz, +}; + u32 imx_get_uartclk(void); u32 imx_get_fecclk(void); unsigned int mxc_get_clock(enum mxc_clock clk); @@ -50,5 +57,5 @@ void enable_usboh3_clk(unsigned char enable); int enable_sata_clock(void); int enable_i2c_clk(unsigned char enable, unsigned i2c_num); void enable_ipu_clock(void); -int enable_fec_anatop_clock(void); +int enable_fec_anatop_clock(enum enet_freq freq); #endif /* __ASM_ARCH_CLOCK_H */ diff --git a/board/freescale/mx6slevk/mx6slevk.c b/board/freescale/mx6slevk/mx6slevk.c index dfc5746..c496254 100644 --- a/board/freescale/mx6slevk/mx6slevk.c +++ b/board/freescale/mx6slevk/mx6slevk.c @@ -120,7 +120,7 @@ static int setup_fec(void) /* clear gpr1[14], gpr1[18:17] to select anatop clock */ clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC_MASK, 0); - ret = enable_fec_anatop_clock(); + ret = enable_fec_anatop_clock(ENET_50MHz); if (ret) return ret; |