From bbeff30cbd1c5d551eb0ad1c2239ec01844c0b0a Mon Sep 17 00:00:00 2001 From: Stefan Roese Date: Mon, 2 Jun 2008 17:37:28 +0200 Subject: 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 --- board/w7o/w7o.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'board/w7o') diff --git a/board/w7o/w7o.c b/board/w7o/w7o.c index c56c269dae..7a3d63a4bf 100644 --- a/board/w7o/w7o.c +++ b/board/w7o/w7o.c @@ -31,6 +31,7 @@ #include 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 (); } -- cgit v1.2.1