diff options
Diffstat (limited to 'src/soc/amd/stoneyridge/reset.c')
| -rw-r--r-- | src/soc/amd/stoneyridge/reset.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/soc/amd/stoneyridge/reset.c b/src/soc/amd/stoneyridge/reset.c index a133a88b92..738ec59354 100644 --- a/src/soc/amd/stoneyridge/reset.c +++ b/src/soc/amd/stoneyridge/reset.c @@ -21,6 +21,21 @@ #include <device/pci_ops.h> #include <soc/southbridge.h> +void set_warm_reset_flag(void) +{ + u32 htic; + htic = pci_read_config32(SOC_HT_DEV, HT_INIT_CONTROL); + htic |= HTIC_COLD_RST_DET; + pci_write_config32(SOC_HT_DEV, HT_INIT_CONTROL, htic); +} + +int is_warm_reset(void) +{ + u32 htic; + htic = pci_read_config32(SOC_HT_DEV, HT_INIT_CONTROL); + return !!(htic & HTIC_COLD_RST_DET); +} + /* Clear bits 5, 9 & 10, used to signal the reset type */ static void clear_bios_reset(void) { @@ -42,6 +57,7 @@ void do_hard_reset(void) void do_soft_reset(void) { + set_warm_reset_flag(); clear_bios_reset(); /* Assert reset signals only. */ |