Re: [U-Boot] [PATCH 5/5] 85xx: enable the auto self refresh for wake up ARP

On Nov 21, 2008, at 2:31 AM, Dave Liu wrote:

The wake up ARP feature need use the memory to process wake up packet, we enable auto self refresh to support it.

Signed-off-by: Dave Liu daveliu@freescale.com

board/freescale/mpc8536ds/ddr.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/board/freescale/mpc8536ds/ddr.c b/board/freescale/ mpc8536ds/ddr.c index 3135d6d..2bad787 100644 --- a/board/freescale/mpc8536ds/ddr.c +++ b/board/freescale/mpc8536ds/ddr.c @@ -79,4 +79,10 @@ void fsl_ddr_board_options(memctl_options_t *popts, * - number of DIMMs installed */ popts->half_strength_driver_enable = 0;

• /*

• * For wake up arp feature, we need enable auto self refresh
  

• */
  

• popts->auto_self_refresh_en = 1;
• popts->sr_it = 0x6;

any reason we picked 6?

- k