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ppc4xx: Remove superfluous dram_init() call or replace it by initdram()

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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>
This commit is contained in:
Stefan Roese
2008-06-02 17:37:28 +02:00
parent 192f90e272
commit bbeff30cbd
25 changed files with 56 additions and 286 deletions
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10
board/jse/init.S
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@@ -93,13 +93,3 @@ ext_bus_cntlr_init:
mtdcr ebccfgd,r4
blr
/*----------------------------------------------------------------------- */
/* Function: sdram_init */
/* Description: This function is called by cpu/ppc4xx/start.S code */
/* to get the SDRAM initialized. */
/*----------------------------------------------------------------------- */
.globl sdram_init
sdram_init:
blr