[U-Boot-Users] [PATCH] mpc83xx: Correct the burst length for DDR2 with 32 bits
Dave Liu
r63238 at freescale.com
Sat Aug 4 07:34:01 CEST 2007
Sorry for that, the patch only fix bottom half.
I will resend the new patch.
Thanks,
Dave
On Wed, 2007-08-01 at 14:01 +0800, Dave Liu wrote:
> The burst length should be 4 for DDR2 with 32 bits bus
>
> Signed-off-by: Dave Liu<daveliu at freescale.com>
> ---
> cpu/mpc83xx/spd_sdram.c | 8 ++++++--
> 1 files changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/cpu/mpc83xx/spd_sdram.c b/cpu/mpc83xx/spd_sdram.c
> index 647813f..5e89add 100644
> --- a/cpu/mpc83xx/spd_sdram.c
> +++ b/cpu/mpc83xx/spd_sdram.c
> @@ -730,8 +730,12 @@ long int spd_sdram()
> sdram_cfg |= 0x10000000;
>
> /* The DIMM is 32bit width */
> - if (spd.dataw_lsb == 0x20)
> - sdram_cfg |= 0x000C0000;
> + if (spd.dataw_lsb == 0x20) {
> + if (spd.mem_type == SPD_MEMTYPE_DDR)
> + sdram_cfg |= 0x000C0000;
> + if (spd.mem_type == SPD_MEMTYPE_DDR2)
> + sdram_cfg |= 0x00080000;
> + }
>
> ddrc_ecc_enable = 0;
>
More information about the U-Boot
mailing list