From mboxrd@z Thu Jan 1 00:00:00 1970 From: Fabio Estevam Date: Fri, 15 Aug 2014 00:24:30 -0300 Subject: [U-Boot] [PATCH 1/2] mx6sx: Adjust enable_fec_anatop_clock() for mx6solox In-Reply-To: <1408073070-8957-1-git-send-email-festevam@gmail.com> References: <1408073070-8957-1-git-send-email-festevam@gmail.com> Message-ID: <1408073070-8957-2-git-send-email-festevam@gmail.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de From: Fabio Estevam Configure and enable the ethernet clock for mx6solox. Signed-off-by: Fabio Estevam --- arch/arm/cpu/armv7/mx6/clock.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) 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 -- 1.9.1