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: NHeiko Schocher <hs@denx.de> Signed-off-by: NKim Phillips <kim.phillips@freescale.com>
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