On Thu, Oct 14, 2010 at 1:03 AM, Heiko Schocher <[email protected]> wrote: > since commit 3667cbeed5e3c4067e624e52a916b1ebb02c8f05 > on beagle board the second sdram bank didn;t longer > work. Since this patch sdram settings just get copied > from bank a, but CMD_NOP, CMD_PRECHARGE, CMD_AUTOREFRESH > are not executed and after that mr register is also > not updated. This patch adds this for the bank b. > > Signed-off-by: Heiko Schocher <[email protected]> > cc: Steve Sakoman <[email protected]> > cc: Sandeep Paulraj <[email protected]> > cc: Wolfgang Denk <[email protected]> > --- > Wolfgang, this patch should also be added to u-boot-arm elf_reloc > > arch/arm/cpu/armv7/omap3/sdrc.c | 7 +++++++ > 1 files changed, 7 insertions(+), 0 deletions(-) > > diff --git a/arch/arm/cpu/armv7/omap3/sdrc.c b/arch/arm/cpu/armv7/omap3/sdrc.c > index 2719bb5..3087096 100644 > --- a/arch/arm/cpu/armv7/omap3/sdrc.c > +++ b/arch/arm/cpu/armv7/omap3/sdrc.c > @@ -149,6 +149,13 @@ void do_sdrc_init(u32 cs, u32 early) > &sdrc_actim_base1->ctrla); > writel(readl(&sdrc_actim_base0->ctrlb), > &sdrc_actim_base1->ctrlb); > + > + writel(CMD_NOP, &sdrc_base->cs[cs].manual); > + writel(CMD_PRECHARGE, &sdrc_base->cs[cs].manual); > + writel(CMD_AUTOREFRESH, &sdrc_base->cs[cs].manual); > + writel(CMD_AUTOREFRESH, &sdrc_base->cs[cs].manual); > + writel(readl(&sdrc_base->cs[CS0].mr), > + &sdrc_base->cs[CS1].mr); > } > > /* > -- > 1.7.2.3
I tested this on Overos with 3 brands of POP memory and both 35XX and 37XX processors. Seemed to do no harm on any combination, so: Acked-by: Steve Sakoman <[email protected]> Tested-by: Steve Sakoman <[email protected]> _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
