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| author | Kumar Gala <galak@kernel.crashing.org> | 2010-01-12 11:42:43 -0600 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2010-01-26 23:17:49 -0600 |
| commit | 4194b3668a93eee18dd1f7eb1309ca7b05003aa7 (patch) | |
| tree | 72e0ef1c6a8e895139f530b6c34888f37cf6a4eb /cpu/mpc85xx | |
| parent | 797312a15edc9dfb433e6903a75189030e7aaaaa (diff) | |
| download | u-boot-imx-4194b3668a93eee18dd1f7eb1309ca7b05003aa7.zip u-boot-imx-4194b3668a93eee18dd1f7eb1309ca7b05003aa7.tar.gz u-boot-imx-4194b3668a93eee18dd1f7eb1309ca7b05003aa7.tar.bz2 | |
Add support to disable cpu's in multicore processors
Add a disable sub-command to the cpu command that allows for disabling
cores in multicore processors. This can be useful for systems that are
using multicore chips but aren't utilizing all the cores as a way to
reduce power and possibly improve performance.
Also updated an added missing copyright.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'cpu/mpc85xx')
| -rw-r--r-- | cpu/mpc85xx/mp.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/cpu/mpc85xx/mp.c b/cpu/mpc85xx/mp.c index 6530cb1..6ae7f0a 100644 --- a/cpu/mpc85xx/mp.c +++ b/cpu/mpc85xx/mp.c @@ -1,5 +1,5 @@ /* - * Copyright 2008-2009 Freescale Semiconductor, Inc. + * Copyright 2008-2010 Freescale Semiconductor, Inc. * * See file CREDITS for list of people who contributed to this * project. @@ -68,6 +68,12 @@ int cpu_status(int nr) return 0; } +int cpu_disable(int nr) +{ + /* dummy function so common/cmd_mp.c will build */ + return 1; +} + static u8 boot_entry_map[4] = { 0, BOOT_ENTRY_PIR, |