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>

2 files changed, 0 insertions, 41 deletions

diff --git a/board/esd/ar405/ar405.c b/board/esd/ar405/ar405.c
index dfead33..3abcfe6 100644
--- a/board/esd/ar405/ar405.c
+++ b/board/esd/ar405/ar405.c
@@ -190,28 +190,6 @@ int checkboard (void)
 	return 0;
 }
 
-/* ------------------------------------------------------------------------- */
-
-long int initdram (int board_type)
-{
-	unsigned long val;
-
-	mtdcr(memcfga, mem_mb0cf);
-	val = mfdcr(memcfgd);
-
-	return (4*1024*1024 << ((val & 0x000e0000) >> 17));
-}
-
-/* ------------------------------------------------------------------------- */
-
-int testdram (void)
-{
-	/* TODO: XXX XXX XXX */
-	printf ("test: 16 MB - ok\n");
-
-	return (0);
-}
-
 
 #if 1 /* test-only: some internal test routines... */
 /*
diff --git a/board/esd/canbt/canbt.c b/board/esd/canbt/canbt.c
index 055a397..30fa605 100644
--- a/board/esd/canbt/canbt.c
+++ b/board/esd/canbt/canbt.c
@@ -181,22 +181,3 @@ int checkboard (void)
 
 	return 0;
 }
-
-/* ------------------------------------------------------------------------- */
-
-long int initdram (int board_type)
-{
-	return (16 * 1024 * 1024);
-}
-
-/* ------------------------------------------------------------------------- */
-
-int testdram (void)
-{
-	/* TODO: XXX XXX XXX */
-	printf ("test: 16 MB - ok\n");
-
-	return (0);
-}
-
-/* ------------------------------------------------------------------------- */