diff options
Diffstat (limited to 'src/soc/amd/stoneyridge/southbridge.c')
| -rw-r--r-- | src/soc/amd/stoneyridge/southbridge.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/src/soc/amd/stoneyridge/southbridge.c b/src/soc/amd/stoneyridge/southbridge.c index eb8820f250..f01f5344d7 100644 --- a/src/soc/amd/stoneyridge/southbridge.c +++ b/src/soc/amd/stoneyridge/southbridge.c @@ -32,6 +32,7 @@ #include <delay.h> #include <soc/pci_devs.h> #include <agesa_headers.h> +#include <soc/nvs.h> /* * Table of devices that need their AOAC registers enabled and waited @@ -678,13 +679,50 @@ static void sb_log_pm1_status(uint16_t pm1_sts) elog_add_event_wake(ELOG_WAKE_SOURCE_PCIE, 0); } +struct soc_amd_sws { + uint32_t pm1i; + uint32_t gevent; +}; + +static struct soc_amd_sws sws; + +static void sb_save_sws(uint32_t pm1_status) +{ + uint32_t reg32; + + sws.pm1i = pm1_status; + reg32 = inl(ACPI_GPE0_BLK); + outl(ACPI_GPE0_BLK, reg32); + reg32 &= inl(ACPI_GPE0_BLK + sizeof(uint32_t)); + sws.gevent = reg32; +} + static void sb_clear_pm1_status(void) { uint16_t pm1_sts = reset_pm1_status(); + + sb_save_sws(pm1_sts); sb_log_pm1_status(pm1_sts); print_pm1_status(pm1_sts); } +static void set_nvs_sws(void *unused) +{ + struct global_nvs_t *gnvs; + + gnvs = cbmem_find(CBMEM_ID_ACPI_GNVS); + if (gnvs == NULL) + return; + + gnvs->pm1i = sws.pm1i; + gnvs->gpei = sws.gevent; + + printk(BIOS_DEBUG, "Loaded _SWS parameters PM1 0x%08x, EVENT 0x%08x into nvs\n", + sws.pm1i, sws.gevent); +} + +BOOT_STATE_INIT_ENTRY(BS_OS_RESUME, BS_ON_ENTRY, set_nvs_sws, NULL); + void southbridge_init(void *chip_info) { sb_init_acpi_ports(); |