diff options
Diffstat (limited to 'arch/arm/cpu')
| -rw-r--r-- | arch/arm/cpu/armv7/mx6/clock.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c index abd9d61..820b8d5 100644 --- a/arch/arm/cpu/armv7/mx6/clock.c +++ b/arch/arm/cpu/armv7/mx6/clock.c @@ -373,6 +373,27 @@ int enable_fec_anatop_clock(enum enet_freq freq) reg &= ~BM_ANADIG_PLL_ENET_BYPASS; writel(reg, &anatop->pll_enet); +#ifdef CONFIG_MX6SX + /* + * Set enet ahb clock to 200MHz + * pll2_pfd2_396m-> ENET_PODF-> ENET_AHB + */ + reg = readl(&imx_ccm->chsccdr); + reg &= ~(MXC_CCM_CHSCCDR_ENET_PRE_CLK_SEL_MASK + | MXC_CCM_CHSCCDR_ENET_PODF_MASK + | MXC_CCM_CHSCCDR_ENET_CLK_SEL_MASK); + /* PLL2 PFD2 */ + reg |= (4 << MXC_CCM_CHSCCDR_ENET_PRE_CLK_SEL_OFFSET); + /* Div = 2*/ + reg |= (1 << MXC_CCM_CHSCCDR_ENET_PODF_OFFSET); + reg |= (0 << MXC_CCM_CHSCCDR_ENET_CLK_SEL_OFFSET); + writel(reg, &imx_ccm->chsccdr); + + /* Enable enet system clock */ + reg = readl(&imx_ccm->CCGR3); + reg |= MXC_CCM_CCGR3_ENET_MASK; + writel(reg, &imx_ccm->CCGR3); +#endif return 0; } #endif |