diff options
| author | Benoît Thébaudeau <benoit.thebaudeau@advansee.com> | 2012-09-27 10:22:22 +0000 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2012-10-15 11:54:11 -0700 |
| commit | 649dc8abd9be85f6de441c3d4d2b7e0588156a38 (patch) | |
| tree | 3d88e367f5a8d6d64fcf9c93371aa30d326982c9 /arch/arm/cpu/armv7/mx5/clock.c | |
| parent | 414e1660c8e898539411d92fbacdefc3e6bfbdfb (diff) | |
mx5 clocks: Add and use CCSR definitions
This fixes config_pll_clk(), which used 0x20 instead of 0x200 for PLL4_CLOCK.
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Stefano Babic <sbabic@denx.de>
Diffstat (limited to 'arch/arm/cpu/armv7/mx5/clock.c')
| -rw-r--r-- | arch/arm/cpu/armv7/mx5/clock.c | 34 |
1 files changed, 23 insertions, 11 deletions
diff --git a/arch/arm/cpu/armv7/mx5/clock.c b/arch/arm/cpu/armv7/mx5/clock.c index 4e10d81c98..fe0c0d3cb7 100644 --- a/arch/arm/cpu/armv7/mx5/clock.c +++ b/arch/arm/cpu/armv7/mx5/clock.c @@ -36,7 +36,9 @@ enum pll_clocks { PLL1_CLOCK = 0, PLL2_CLOCK, PLL3_CLOCK, +#ifdef CONFIG_MX53 PLL4_CLOCK, +#endif PLL_CLOCKS, }; @@ -323,10 +325,10 @@ static u32 get_lp_apm(void) u32 ret_val = 0; u32 ccsr = readl(&mxc_ccm->ccsr); - if (((ccsr >> 9) & 1) == 0) - ret_val = MXC_HCLK; - else + if (ccsr & MXC_CCM_CCSR_LP_APM) ret_val = MXC_CLK32 * 1024; + else + ret_val = MXC_HCLK; return ret_val; } @@ -593,40 +595,50 @@ static int config_pll_clk(enum pll_clocks index, struct pll_param *pll_param) switch (index) { case PLL1_CLOCK: /* Switch ARM to PLL2 clock */ - writel(ccsr | 0x4, &mxc_ccm->ccsr); + writel(ccsr | MXC_CCM_CCSR_PLL1_SW_CLK_SEL, + &mxc_ccm->ccsr); CHANGE_PLL_SETTINGS(pll, pll_param->pd, pll_param->mfi, pll_param->mfn, pll_param->mfd); /* Switch back */ - writel(ccsr & ~0x4, &mxc_ccm->ccsr); + writel(ccsr & ~MXC_CCM_CCSR_PLL1_SW_CLK_SEL, + &mxc_ccm->ccsr); break; case PLL2_CLOCK: /* Switch to pll2 bypass clock */ - writel(ccsr | 0x2, &mxc_ccm->ccsr); + writel(ccsr | MXC_CCM_CCSR_PLL2_SW_CLK_SEL, + &mxc_ccm->ccsr); CHANGE_PLL_SETTINGS(pll, pll_param->pd, pll_param->mfi, pll_param->mfn, pll_param->mfd); /* Switch back */ - writel(ccsr & ~0x2, &mxc_ccm->ccsr); + writel(ccsr & ~MXC_CCM_CCSR_PLL2_SW_CLK_SEL, + &mxc_ccm->ccsr); break; case PLL3_CLOCK: /* Switch to pll3 bypass clock */ - writel(ccsr | 0x1, &mxc_ccm->ccsr); + writel(ccsr | MXC_CCM_CCSR_PLL3_SW_CLK_SEL, + &mxc_ccm->ccsr); CHANGE_PLL_SETTINGS(pll, pll_param->pd, pll_param->mfi, pll_param->mfn, pll_param->mfd); /* Switch back */ - writel(ccsr & ~0x1, &mxc_ccm->ccsr); + writel(ccsr & ~MXC_CCM_CCSR_PLL3_SW_CLK_SEL, + &mxc_ccm->ccsr); break; +#ifdef CONFIG_MX53 case PLL4_CLOCK: /* Switch to pll4 bypass clock */ - writel(ccsr | 0x20, &mxc_ccm->ccsr); + writel(ccsr | MXC_CCM_CCSR_PLL4_SW_CLK_SEL, + &mxc_ccm->ccsr); CHANGE_PLL_SETTINGS(pll, pll_param->pd, pll_param->mfi, pll_param->mfn, pll_param->mfd); /* Switch back */ - writel(ccsr & ~0x20, &mxc_ccm->ccsr); + writel(ccsr & ~MXC_CCM_CCSR_PLL4_SW_CLK_SEL, + &mxc_ccm->ccsr); break; +#endif default: return -EINVAL; } |