diff options
Diffstat (limited to 'chip/mec1322/clock.c')
| -rw-r--r-- | chip/mec1322/clock.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/chip/mec1322/clock.c b/chip/mec1322/clock.c index 9cef11686f..ba46e4e1a2 100644 --- a/chip/mec1322/clock.c +++ b/chip/mec1322/clock.c @@ -9,6 +9,7 @@ #include "common.h" #include "console.h" #include "cpu.h" +#include "hooks.h" #include "hwtimer.h" #include "registers.h" #include "shared_mem.h" @@ -17,6 +18,7 @@ #include "timer.h" #include "uart.h" #include "util.h" +#include "vboot_hash.h" /* Console output macros */ #define CPUTS(outstr) cputs(CC_CLOCK, outstr) @@ -74,6 +76,23 @@ void clock_init(void) #endif } +/** + * Speed through boot + vboot hash calculation, dropping our processor clock + * only after vboot hashing is completed. + */ +static void clock_turbo_disable(void) +{ +#ifdef CONFIG_VBOOT_HASH + if (vboot_hash_in_progress()) + hook_call_deferred(clock_turbo_disable, 100 * MSEC); + else +#endif + /* Use 12 MHz processor clock for power savings */ + MEC1322_PCR_PROC_CLK_CTL = 4; +} +DECLARE_HOOK(HOOK_INIT, clock_turbo_disable, HOOK_PRIO_INIT_VBOOT_HASH + 1); +DECLARE_DEFERRED(clock_turbo_disable); + #ifdef CONFIG_LOW_POWER_IDLE /** * initialization of Hibernation timer |