diff options
| -rw-r--r-- | src/cpu/intel/haswell/bootblock.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/cpu/intel/haswell/bootblock.c b/src/cpu/intel/haswell/bootblock.c index c9e3f2abad..7066637f24 100644 --- a/src/cpu/intel/haswell/bootblock.c +++ b/src/cpu/intel/haswell/bootblock.c @@ -4,6 +4,7 @@ #include <arch/bootblock.h> #include <cpu/x86/msr.h> #include <arch/io.h> +#include <delay.h> #include <halt.h> #include "haswell.h" @@ -50,6 +51,10 @@ static void set_flex_ratio_to_tdp_nominal(void) /* Set soft reset control to use register value */ RCBA32_OR(SOFT_RESET_CTRL, 1); + /* Delay before reset to avoid potential TPM lockout */ + if (CONFIG(TPM1) || CONFIG(TPM2)) + mdelay(30); + /* Issue warm reset, will be "CPU only" due to soft reset data */ outb(0x0, 0xcf9); outb(0x6, 0xcf9); |