Instead of changing the MPCTL to set an other cpu frequency,
use the post divider.
This prevents freezing when changing the clock from 399MHz to 532MHz.
Signed-off-by: Teresa Gámez <t.gamez@xxxxxxxxx>
---
arch/arm/boards/pcm043/pcm043.c | 8 ++++----
1 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/arm/boards/pcm043/pcm043.c b/arch/arm/boards/pcm043/pcm043.c
index 966899a..5cd6432 100644
--- a/arch/arm/boards/pcm043/pcm043.c
+++ b/arch/arm/boards/pcm043/pcm043.c
@@ -301,8 +301,8 @@ static int pcm043_core_setup(void)
core_initcall(pcm043_core_setup);
-#define MPCTL_PARAM_399 (IMX_PLL_PD(0) | IMX_PLL_MFD(15) | IMX_PLL_MFI(8) | IMX_PLL_MFN(5))
-#define MPCTL_PARAM_532 ((1 << 31) | IMX_PLL_PD(0) | IMX_PLL_MFD(11) | IMX_PLL_MFI(11) | IMX_PLL_MFN(1))
+#define CCM_PDR0_PARAM_399 ((1 << 12) | (1 << 16))
+#define CCM_PDR0_PARAM_532 (1 << 12)
static int do_cpufreq(struct command *cmdtp, int argc, char *argv[])
{
@@ -315,10 +315,10 @@ static int do_cpufreq(struct command *cmdtp, int argc, char *argv[])
switch (freq) {
case 399:
- writel(MPCTL_PARAM_399, IMX_CCM_BASE + CCM_MPCTL);
+ writel(CCM_PDR0_PARAM_399, IMX_CCM_BASE + CCM_PDR0);
break;
case 532:
- writel(MPCTL_PARAM_532, IMX_CCM_BASE + CCM_MPCTL);
+ writel(CCM_PDR0_PARAM_532, IMX_CCM_BASE + CCM_PDR0);
break;
default:
return COMMAND_ERROR_USAGE;
--
1.7.0.4
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