Linux on i.MX31/KZM is expecting the CCM to use the CKIH ref clock instead
of the CKIL plus the FPM multiplier.
We change the CCMR reg reset value to match linux expected config.
This allow the CCM to provide a 39MHz clk (as expected by linux) instead of
the actual 50MHz.
With this change the "sleep 60" command on linux is time accurate with
"real world time".
Signed-off-by: Jean-Christophe Dubois <j...@tribudubois.net>
Reviewed-by: Peter Crosthwaite <crosthwaite.pe...@gmail.com>
---
Changes since v1:
* Not present
Changes since v2:
* Not present
Changes since v3:
* Not present
Changes since v4:
* Not present
Changes since v4:
* No change
hw/misc/imx_ccm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/misc/imx_ccm.c b/hw/misc/imx_ccm.c
index 4cc2bbc..500dda5 100644
--- a/hw/misc/imx_ccm.c
+++ b/hw/misc/imx_ccm.c
@@ -123,7 +123,7 @@ static void imx_ccm_reset(DeviceState *dev)
{
IMXCCMState *s = IMX_CCM(dev);
- s->ccmr = 0x074b0b7b;
+ s->ccmr = 0x074b0b7d;
s->pdr0 = 0xff870b48;
s->pdr1 = 0x49fcfe7f;
s->mpctl = PLL_PD(1) | PLL_MFD(0) | PLL_MFI(6) | PLL_MFN(0);
--
2.5.0
