minix/u-boot
1
0
Fork 0
mirror of https://github.com/Stichting-MINIX-Research-Foundation/u-boot.git synced 2025-09-11 05:02:26 -04:00
Code Issues Packages Projects Releases Wiki Activity

ppc4xx: Fix problem with SDRAM init in bamboo NAND booting port

Browse Source 
This patch fixes a problem spotted by Eugene O'Brian (thanks Eugene)
introduced by the commit:

ppc4xx/NAND_SPL: Consolidate 405 and 440 NAND booting code in start.S

With this patch SDRAM will get initialized again and booting from NAND
is working again.

Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Eugene O'Brien <eugene.obrien@advantechamt.com>
This commit is contained in:
Stefan Roese 2008-06-04 19:19:20 +02:00
parent de5bfcf7b0
commit 63a0afa0c3
1 changed files with 2 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
nand_spl/board/amcc/bamboo/sdram.c
View File

@ -36,7 +36,7 @@ static void wait_init_complete(void)
} }
/* /*
* early_sdram_init() * long int initdram(int board_type)
* *
* As the name already indicates, this function is called very early * As the name already indicates, this function is called very early
* from start.S and configures the SDRAM with fixed values. This is needed, * from start.S and configures the SDRAM with fixed values. This is needed,
@ -51,7 +51,7 @@ static void wait_init_complete(void)
* modules are still plugged in. So it is recommended to remove the DIMM * modules are still plugged in. So it is recommended to remove the DIMM
* modules while using the NAND booting code with the fixed SDRAM setup! * modules while using the NAND booting code with the fixed SDRAM setup!
*/ */
void early_sdram_init(void) long int initdram(int board_type)
{ {
/* /*
* Soft-reset SDRAM controller. * Soft-reset SDRAM controller.
@ -87,12 +87,6 @@ void early_sdram_init(void)
*/ */
mtsdram(mem_cfg0, 0x80000000); /* DCEN=1, PMUD=0*/ mtsdram(mem_cfg0, 0x80000000); /* DCEN=1, PMUD=0*/
wait_init_complete(); wait_init_complete();
}
long int initdram(int board_type)
{
/*
* Nothing to do here, just return size of fixed SDRAM setup
*/
return CFG_MBYTES_SDRAM << 20; return CFG_MBYTES_SDRAM << 20;
} }