Le vendredi 20 mars 2015 à 19:21 +0200, Siarhei Siamashka a écrit :
> On Fri, 20 Mar 2015 17:51:03 +0100
> Paul Kocialkowski <[email protected]> wrote:
> 
> > After investigating a bit, I found out that I was unable to boot
> > sunxi-3.4 on A20 devices because I wasn't setting
> > CONFIG_OLD_SUNXI_KERNEL_COMPAT the right way.
> > 
> > What I did initially was to add it to sunxi-common.h (before any other
> > define), but it apparently didn't get taken in account in the SPL
> > context. Setting it in the device defconfig works for both the main
> > U-Boot binary and SPL. This seems like a very strange behaviour to me.
> > Would someone care to weigh-in and provide an explanation for this? I
> > thought that sunxi-common.h was supposed to be used in both contexts.
> > 
> > I am now looking for a way to enable it at build time, that is, through
> > some equivalent of menuconfig, that wouldn't require any interaction (so
> > that I can have it all scriptable).
> 
> U-Boot uses to have separate menuconfig invocations for the SPL and the
> main binary for a while. This turned out to be very user unfriendly and
> confusing, but now this mishap should be already resolved:
> 
>     http://lists.denx.de/pipermail/u-boot/2015-February/205512.html
> 
> Try to upgrade to the latest U-Boot git master branch and check if it
> works better.

I'm working off v2015.04-rc4, which is recent enough.

Having this diff:
diff --git a/include/configs/sunxi-common.h
b/include/configs/sunxi-common.h
index 61a45e1..14ac9db 100644
--- a/include/configs/sunxi-common.h
+++ b/include/configs/sunxi-common.h
@@ -13,6 +13,8 @@
 #ifndef _SUNXI_COMMON_CONFIG_H
 #define _SUNXI_COMMON_CONFIG_H
 
+#define CONFIG_OLD_SUNXI_KERNEL_COMPAT 1
+
 #ifdef CONFIG_OLD_SUNXI_KERNEL_COMPAT
 /*
  * The U-Boot workarounds bugs in the outdated buggy sunxi-3.4 kernels
at the

Results in this .config:

grep CONFIG_OLD_SUNXI_KERNEL_COMPAT u-boot-out/.config
# CONFIG_OLD_SUNXI_KERNEL_COMPAT is not set

So this is not, in fact, specific to the SPL. Still, why does it happen?
Perhaps the fact that OLD_SUNXI_KERNEL_COMPAT is defined as a Kconfig
option, defaulted to n, implies that a define in the config header is
not sufficient to enable it in Kconfig?

-- 
Paul Kocialkowski, Replicant developer

Replicant is a fully free Android distribution running on several
devices, a free software mobile operating system putting the emphasis on
freedom and privacy/security.

Website: http://www.replicant.us/
Blog: http://blog.replicant.us/
Wiki/tracker/forums: http://redmine.replicant.us/

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