From 7bf5ecfa50722a9feb45ea8f04da75f5d406f20b Mon Sep 17 00:00:00 2001 From: Stefan Roese Date: Wed, 10 Sep 2008 16:53:47 +0200 Subject: ppc4xx: Fix SDRAM inititialization of multiple 405 based board ports This patch fixes a problem introdiced with patch bbeff30c [ppc4xx: Remove superfluous dram_init() call or replace it by initdram()]. The boards affected are: - PCI405 - PPChameleonEVB - quad100hd - taihu - zeus Signed-off-by: Stefan Roese --- cpu/ppc4xx/sdram.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) (limited to 'cpu/ppc4xx') diff --git a/cpu/ppc4xx/sdram.c b/cpu/ppc4xx/sdram.c index 7d60ad667f..b5a6a4c981 100644 --- a/cpu/ppc4xx/sdram.c +++ b/cpu/ppc4xx/sdram.c @@ -209,15 +209,15 @@ phys_size_t initdram(int board_type) udelay(10000); if (get_ram_size(0, mb0cf[i].size) == mb0cf[i].size) { + phys_size_t size = mb0cf[i].size; + /* * OK, size detected. Enable second bank if * defined (assumes same type as bank 0) */ #ifdef CONFIG_SDRAM_BANK1 - u32 b1cr = mb0cf[i].size | mb0cf[i].reg; - mtsdram(mem_mcopt1, 0x00000000); - mtsdram(mem_mb1cf, b1cr); /* SDRAM0_B1CR */ + mtsdram(mem_mb1cf, mb0cf[i].size | mb0cf[i].reg); mtsdram(mem_mcopt1, 0x80800000); udelay(10000); @@ -230,13 +230,19 @@ phys_size_t initdram(int board_type) mb0cf[i].size) { mtsdram(mem_mb1cf, 0); mtsdram(mem_mcopt1, 0); + } else { + /* + * We have two identical banks, so the size + * is twice the bank size + */ + size = 2 * size; } #endif /* * OK, size detected -> all done */ - return mb0cf[i].size; + return size; } } -- cgit v1.2.3