[U-Boot] [PATCH 3/3] mpc83xx: turn on icache in core initialization to improve u-boot boot time
Scott Wood
scottwood at freescale.com
Mon Apr 19 22:41:00 CEST 2010
Timur Tabi wrote:
> On Thu, Apr 15, 2010 at 5:36 PM, Kim Phillips
> <kim.phillips at freescale.com> wrote:
>
>> #define CONFIG_SYS_HID0_FINAL (HID0_ENABLE_MACHINE_CHECK | \
>> - HID0_ENABLE_DYNAMIC_POWER_MANAGMENT)
>> + HID0_ENABLE_INSTRUCTION_CACHE | \
>> + HID0_ENABLE_DYNAMIC_POWER_MANAGMENT)
>
> What was so special about the 8349ITX that icache() didn't work?
> You're changing the HDI0 values for all of the 83xx boards, but AFAIK,
> only the ITX had this problem.
All 83xx boards had the performance problem of not enabling icache until
after relocation.
-Scott
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