From a3f5da1bee9a8c343a411080d7d468bdc78794a4 Mon Sep 17 00:00:00 2001 From: Heiko Schocher Date: Thu, 7 Jan 2010 08:56:00 +0100 Subject: mpc83xx: add support configure bus parking Add support to configure bus parking mode and master in bus arbitration configuration (ACR). Add this for the kmeter1 port: Configure bus arbiter with recommended values from Freescale to improve bus latency/throughput for application with intensive QuiccEngine activity. Signed-off-by: Heiko Schocher Signed-off-by: Kim Phillips --- include/configs/kmeter1.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include') diff --git a/include/configs/kmeter1.h b/include/configs/kmeter1.h index bec08dab1..b02332650 100644 --- a/include/configs/kmeter1.h +++ b/include/configs/kmeter1.h @@ -71,6 +71,14 @@ */ #define CONFIG_SYS_IMMR 0xE0000000 +/* + * Bus Arbitration Configuration Register (ACR) + */ +#define CONFIG_SYS_ACR_PIPE_DEP 3 /* pipeline depth 4 transactions */ +#define CONFIG_SYS_ACR_RPTCNT 3 /* 4 consecutive transactions */ +#define CONFIG_SYS_ACR_APARK 0 /* park bus to master (below) */ +#define CONFIG_SYS_ACR_PARKM 3 /* parking master = QuiccEngine */ + /* * DDR Setup */ -- cgit v1.2.3