diff options
| author | Anson Huang <b20788@freescale.com> | 2014-01-09 12:03:16 +0400 |
|---|---|---|
| committer | Shawn Guo <shawn.guo@linaro.org> | 2014-03-05 06:35:01 +0400 |
| commit | 751f7e999afcef157527f5f6f06529c93f8a4022 (patch) | |
| tree | 49dae752f037aa96d2a61ec88ee5179a75c0d86d /arch/arm/mach-imx/common.h | |
| parent | 848db4a0a17aaf97b8ba5b1f754d635ff622670a (diff) | |
| download | linux-751f7e999afcef157527f5f6f06529c93f8a4022.tar.xz | |
ARM: imx: add cpuidle support for i.mx6sl
Add cpuidle support for i.MX6SL, currently only support
two cpuidle levels(ARM wfi and WAIT mode), and add software
workaround for WAIT mode errata as below:
ERR005311 CCM: After exit from WAIT mode, unwanted interrupt(s) taken
during WAIT mode entry process could cause cache memory
corruption.
Software workaround:
To prevent this issue from occurring, software should ensure that
the ARM to IPG clock ratio is less than 12:5 (that is < 2.4x), before
entering WAIT mode.
Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Diffstat (limited to 'arch/arm/mach-imx/common.h')
| -rw-r--r-- | arch/arm/mach-imx/common.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h index cdbddfa2a42f..b909b689619b 100644 --- a/arch/arm/mach-imx/common.h +++ b/arch/arm/mach-imx/common.h @@ -140,6 +140,7 @@ void imx_anatop_pre_suspend(void); void imx_anatop_post_resume(void); int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode); void imx6q_set_int_mem_clk_lpm(void); +void imx6sl_set_wait_clk(bool enter); void imx_cpu_die(unsigned int cpu); int imx_cpu_kill(unsigned int cpu); |