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authorStefan Roese <sr@denx.de>2008-06-02 17:37:28 +0200
committerStefan Roese <sr@denx.de>2008-06-03 20:22:19 +0200
commitbbeff30cbd1c5d551eb0ad1c2239ec01844c0b0a (patch)
tree48f48eadf87f5bc67d2673b7f1ba58a77e882dc2 /board/w7o
parent192f90e272b3989ee7b4a666d1fdab831f20f8d2 (diff)
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ppc4xx: Remove superfluous dram_init() call or replace it by initdram()
Historically the 405 U-Boot port had a dram_init() call in early init stage. This function was still called from start.S and most of the time coded in assembler. This is not needed anymore (since a long time) and boards should implement the common initdram() function in C instead. This patch now removed the dram_init() call from start.S and removes the empty implementations that are scattered through most of the 405 board ports. Some older board ports really implement this dram_init() though. These are: csb272 csb472 ERIC EXBITGEN W7OLMC W7OLMG I changed those boards to call this assembler dram_init() function now from their board specific initdram() instead. This *should* work, but please test again on those platforms. And it is perhaps a good idea that those boards use some common 405 SDRAM initialization code from cpu/ppc4xx at some time. So further patches welcome here. Signed-off-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'board/w7o')
-rw-r--r--board/w7o/w7o.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/board/w7o/w7o.c b/board/w7o/w7o.c
index c56c269..7a3d63a 100644
--- a/board/w7o/w7o.c
+++ b/board/w7o/w7o.c
@@ -31,6 +31,7 @@
#include <watchdog.h>
unsigned long get_dram_size (void);
+void sdram_init(void);
/*
* Macros to transform values
@@ -153,6 +154,13 @@ int checkboard (void)
long int initdram (int board_type)
{
+ /*
+ * ToDo: Move the asm init routine sdram_init() to this C file,
+ * or even better use some common ppc4xx code available
+ * in cpu/ppc4xx
+ */
+ sdram_init();
+
return get_dram_size ();
}