diff options
| author | Lee Leahy <leroy.p.leahy@intel.com> | 2016-05-22 11:52:28 -0700 |
|---|---|---|
| committer | Leroy P Leahy <leroy.p.leahy@intel.com> | 2016-05-31 21:57:55 +0200 |
| commit | 7f4b0539808ceea3854ad56cdc6f1cf69595279b (patch) | |
| tree | 4eb7958558f79c039aaa5c380558de4fbd885b10 /src/soc/intel/quark/romstage | |
| parent | 773ee2bb17344ebad1e99e997ff6700fc6479044 (diff) | |
soc/intel/quark: Clear SMI interrupts and wake events
Migrate the clearing of the SMI interrupts and wake events from FSP into
coreboot.
TEST=Build and run on Galileo Gen2
Change-Id: Ia369801da87a16bc00fb2c05475831ebe8a315f8
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: https://review.coreboot.org/14945
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'src/soc/intel/quark/romstage')
| -rw-r--r-- | src/soc/intel/quark/romstage/romstage.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/soc/intel/quark/romstage/romstage.c b/src/soc/intel/quark/romstage/romstage.c index 4ed5863179..c4f9844754 100644 --- a/src/soc/intel/quark/romstage/romstage.c +++ b/src/soc/intel/quark/romstage/romstage.c @@ -30,10 +30,22 @@ #include <soc/romstage.h> #include <soc/reg_access.h> +static const struct reg_script clear_smi_and_wake_events[] = { + /* Clear any SMI or wake events */ + REG_GPE0_READ(R_QNC_GPE0BLK_GPE0S), + REG_GPE0_READ(R_QNC_GPE0BLK_SMIS), + REG_GPE0_OR(R_QNC_GPE0BLK_GPE0S, B_QNC_GPE0BLK_GPE0S_ALL), + REG_GPE0_OR(R_QNC_GPE0BLK_SMIS, B_QNC_GPE0BLK_SMIS_ALL), + REG_SCRIPT_END +}; + static const struct reg_script legacy_gpio_init[] = { /* Temporarily enable the legacy GPIO controller */ REG_PCI_WRITE32(R_QNC_LPC_GBA_BASE, IO_ADDRESS_VALID | LEGACY_GPIO_BASE_ADDRESS), + /* Temporarily enable the GPE controller */ + REG_PCI_WRITE32(R_QNC_LPC_GPE0BLK, IO_ADDRESS_VALID + | GPE0_BASE_ADDRESS), REG_PCI_OR8(PCI_COMMAND, PCI_COMMAND_IO), REG_SCRIPT_END }; @@ -81,6 +93,7 @@ void soc_memory_init_params(struct romstage_params *params, char *pdat_file; size_t pdat_file_len; const struct soc_intel_quark_config *config; + struct chipset_power_state *ps = car_get_var_ptr(&power_state); /* Locate the pdat.bin file */ pdat_file = cbfs_boot_map_with_leak("pdat.bin", CBFS_TYPE_RAW, @@ -104,6 +117,12 @@ void soc_memory_init_params(struct romstage_params *params, /* Display the ROM shadow data */ hexdump((void *)0x000ffff0, 0x10); + + /* Clear SMI and wake events */ + if (ps->prev_sleep_state != 3) { + printk(BIOS_SPEW, "Clearing SMI interrupts and wake events\n"); + reg_script_run_on_dev(LPC_BDF, clear_smi_and_wake_events); + } } void soc_after_ram_init(struct romstage_params *params) |