[U-Boot] [PATCH] mx6qsabresd: Add basic support

[Fabio Estevam]

Hi Stefano,

On Sat, Apr 14, 2012 at 11:41 AM, stefano babic <sbabic at denx.de> wrote:

> Some considerations about this issue. hopefully I am not OT. The values
> put in the configuration file are the default parameters taken by the
> mtest command if no parameters are issued. I agree they must not be set
> to wrong values (I mean, outside the adressable RAM), but in any case
> mtest is not run automatically and the range can be adjusted in the
> console. I can always send a "mtest 0x0x10000000 - 0x177fffff" even if a
> restricted range is set in the config file, for example as it is set
> now for the mx6qsabrelite (64k).

Thanks for your and Dirk's explanations. Very helpful!

> So I will be for a patch that changes the behavior of mtest and computes
> automatically the last testable address if the second parameter is not
> given, dropping CONFIG_SYS_MEMTEST_END - I know, this is not part of
> your patch, I have already said I can be OT ;-)

Something like the patch below? (Build tested only - no hardware handy
right now)

diff --git a/common/cmd_mem.c b/common/cmd_mem.c
index fa6f599..fee1d27 100644
--- a/common/cmd_mem.c
+++ b/common/cmd_mem.c
@@ -40,6 +40,8 @@
 #define PRINTF(fmt,args...)
 #endif

+DECLARE_GLOBAL_DATA_PTR;
+
 static int mod_mem(cmd_tbl_t *, int, int, int, char * const []);

 /* Display values from last command.
@@ -662,7 +664,7 @@ int do_mem_mtest (cmd_tbl_t *cmdtp, int flag, int argc, char
        if (argc > 2)
                end = (ulong *)simple_strtoul(argv[2], NULL, 16);
        else
-               end = (ulong *)(CONFIG_SYS_MEMTEST_END);
+               end = (ulong *)(gd->relocaddr -1 );

        if (argc > 3)
                pattern = (ulong)simple_strtoul(argv[3], NULL, 16);
(END)