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[Qemu-devel] [PULL 22/25] i.MX: Fix i.MX31 default/reset configuration


From: Peter Maydell
Subject: [Qemu-devel] [PULL 22/25] i.MX: Fix i.MX31 default/reset configuration
Date: Thu, 17 Dec 2015 11:50:17 +0000

From: Jean-Christophe Dubois <address@hidden>

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 allows 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 <address@hidden>
Reviewed-by: Peter Crosthwaite <address@hidden>
Message-id: address@hidden
Signed-off-by: Peter Maydell <address@hidden>
---
 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);
-- 
1.9.1




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