ARM realview breakages w/ 3.7 under qemu

[Will Deacon]

On Fri, Dec 14, 2012 at 10:37:04AM +0000, Florian Fainelli wrote:
> Le 12/14/12 10:40, Russell King - ARM Linux a écrit :
> > On Thu, Dec 13, 2012 at 05:48:17PM +0000, Will Deacon wrote:
> >> On Thu, Dec 13, 2012 at 05:26:25PM +0000, Florian Fainelli wrote:
> >>> - PBX A9: booting with less than 1024MBytes of RAM causes this:
> >>> [    0.000000] Truncating RAM at 20000000-3fffffff to -3f7fffff (vmalloc
> >>> region overlap).
> >>> [    0.000000] Ignoring RAM at 80000000-8fffffff (vmalloc region overlap).
> >>>
> >>> Do these issues sounds familiar to any of you? The kernel config is
> >>> attached in case that helps.
> > I don't have the original email to reply to (so I don't have the .config
> > either) but my guess for the above would be that HIGHMEM is disabled.
> The original mail containing the .config file was actually rejected by 
> the mailing-list manager. I have uploaded it here: 
> http://alphacore.org/~florian/openwrt/realview-eb-config
> 
> You are right, HIGHMEM is disabled. Even though enabling HIGHMEM does 
> not allow me booting either without at least 1Gbyte of RAM:
> 
> [    0.000000] Memory policy: ECC disabled, Data cache writealloc
> and we are stuck.

I just dusted off my pbx and it boots fine with your .config and a 3.7
kernel when passing mem=128M on the command line.

For EB, can you try the following diff please?

Will

--->8

diff --git a/arch/arm/mach-realview/include/mach/board-eb.h b/arch/arm/mach-realview/include/mach/board-eb.h
index 124bce6..a301e61 100644
--- a/arch/arm/mach-realview/include/mach/board-eb.h
+++ b/arch/arm/mach-realview/include/mach/board-eb.h
@@ -47,7 +47,7 @@
 #define REALVIEW_EB_USB_BASE           0x4F000000      /* USB */
 
 #ifdef CONFIG_REALVIEW_EB_ARM11MP_REVB
-#define REALVIEW_EB11MP_PRIV_MEM_BASE  0x1F000000
+#define REALVIEW_EB11MP_PRIV_MEM_BASE  0x10100000
 #define REALVIEW_EB11MP_L220_BASE      0x10102000      /* L220 registers */
 #define REALVIEW_EB11MP_SYS_PLD_CTRL1  0xD8            /* Register offset for MPCore sysctl */
 #else