diff options
Diffstat (limited to 'arch/arm/cpu/armv7/mx6/clock.c')
| -rw-r--r-- | arch/arm/cpu/armv7/mx6/clock.c | 32 |
1 files changed, 26 insertions, 6 deletions
diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c index abe2d81..700d190 100644 --- a/arch/arm/cpu/armv7/mx6/clock.c +++ b/arch/arm/cpu/armv7/mx6/clock.c @@ -733,6 +733,15 @@ static void ungate_sata_clock(void) /* Enable SATA clock. */ setbits_le32(&imx_ccm->CCGR5, MXC_CCM_CCGR5_SATA_MASK); } +#else +static void ungate_disp_axi_clock(void) +{ + struct mxc_ccm_reg *const imx_ccm = + (struct mxc_ccm_reg *)CCM_BASE_ADDR; + + /* Enable display axi clock. */ + setbits_le32(&imx_ccm->CCGR3, MXC_CCM_CCGR3_DISP_AXI_MASK); +} #endif static void ungate_pcie_clock(void) @@ -758,6 +767,9 @@ int enable_pcie_clock(void) (struct anatop_regs *)ANATOP_BASE_ADDR; struct mxc_ccm_reg *ccm_regs = (struct mxc_ccm_reg *)CCM_BASE_ADDR; + /* PCIe reference clock sourced from AXI. */ + clrbits_le32(&ccm_regs->cbcmr, MXC_CCM_CBCMR_PCIE_AXI_CLK_SEL); + /* * Here be dragons! * @@ -773,22 +785,30 @@ int enable_pcie_clock(void) #define ANADIG_ANA_MISC1_LVDSCLK1_IBEN (1 << 12) #define ANADIG_ANA_MISC1_LVDSCLK1_OBEN (1 << 10) #define ANADIG_ANA_MISC1_LVDS1_CLK_SEL_MASK 0x0000001F +#ifndef CONFIG_MX6SX + /* lvds_clk1 is sourced from sata ref on imx6q/dl/solo */ clrsetbits_le32(&anatop_regs->ana_misc1, ANADIG_ANA_MISC1_LVDSCLK1_IBEN | ANADIG_ANA_MISC1_LVDS1_CLK_SEL_MASK, ANADIG_ANA_MISC1_LVDSCLK1_OBEN | 0xb); - /* PCIe reference clock sourced from AXI. */ - clrbits_le32(&ccm_regs->cbcmr, MXC_CCM_CBCMR_PCIE_AXI_CLK_SEL); - /* Party time! Ungate the clock to the PCIe. */ -#ifndef CONFIG_MX6SX ungate_sata_clock(); -#endif ungate_pcie_clock(); return enable_enet_pll(BM_ANADIG_PLL_ENET_ENABLE_SATA | - BM_ANADIG_PLL_ENET_ENABLE_PCIE); + BM_ANADIG_PLL_ENET_ENABLE_PCIE); +#else + /* lvds_clk1 is sourced from pcie ref on imx6sx */ + clrsetbits_le32(&anatop_regs->ana_misc1, + ANADIG_ANA_MISC1_LVDSCLK1_IBEN | + ANADIG_ANA_MISC1_LVDS1_CLK_SEL_MASK, + ANADIG_ANA_MISC1_LVDSCLK1_OBEN | 0xa); + + ungate_disp_axi_clock(); + ungate_pcie_clock(); + return enable_enet_pll(BM_ANADIG_PLL_ENET_ENABLE_PCIE); +#endif } #ifdef CONFIG_SECURE_BOOT |