[PATCH v2 4/4] powerpc/85xx: add support to JOG feature using cpufreq interface

2012-08-10 Thread Zhao Chenhui
Some 85xx silicons like MPC8536 and P1022 have a JOG feature, which provides a dynamic mechanism to lower or raise the CPU core clock at runtime. This patch adds the support to change CPU frequency using the standard cpufreq interface. The ratio CORE to CCB can be 1:1(except MPC8536), 3:2, 2:1,

[PATCH v2 4/4] powerpc/85xx: add support to JOG feature using cpufreq interface

2012-08-10 Thread Zhao Chenhui
Some 85xx silicons like MPC8536 and P1022 have a JOG feature, which provides a dynamic mechanism to lower or raise the CPU core clock at runtime. This patch adds the support to change CPU frequency using the standard cpufreq interface. The ratio CORE to CCB can be 1:1(except MPC8536), 3:2, 2:1,