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

Kumar Gala galak at kernel.crashing.org
Fri Nov 21 12:43:04 CET 2008


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 at 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


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