diff options
Diffstat (limited to 'src/southbridge/intel/i82801gx/i82801gx_smi.c')
| -rw-r--r-- | src/southbridge/intel/i82801gx/i82801gx_smi.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/src/southbridge/intel/i82801gx/i82801gx_smi.c b/src/southbridge/intel/i82801gx/i82801gx_smi.c index 7fb4abfdaa..7187b1af91 100644 --- a/src/southbridge/intel/i82801gx/i82801gx_smi.c +++ b/src/southbridge/intel/i82801gx/i82801gx_smi.c @@ -155,6 +155,34 @@ static void dump_gpe0_status(u32 gpe0_sts) printk_debug("\n"); } + +/** + * @brief read and clear ALT_GP_SMI_STS + * @return ALT_GP_SMI_STS register + */ +static u16 reset_alt_gp_smi_status(void) +{ + u16 reg16; + + reg16 = inl(pmbase + ALT_GP_SMI_STS); + /* set status bits are cleared by writing 1 to them */ + outl(reg16, pmbase + ALT_GP_SMI_STS); + + return reg16; +} + +static void dump_alt_gp_smi_status(u16 alt_gp_smi_sts) +{ + int i; + printk_debug("ALT_GP_SMI_STS: "); + for (i=15; i<= 0; i--) { + if (alt_gp_smi_sts & (1 << i)) printk_debug("GPI%d ", (i-16)); + } + printk_debug("\n"); +} + + + /** * @brief read and clear TCOx_STS * @return TCOx_STS registers @@ -212,6 +240,7 @@ extern uint8_t smm_relocation_start, smm_relocation_end; void smm_relocate(void) { u32 smi_en; + u16 pm1_en; printk_debug("Initializing SMM handler..."); @@ -232,6 +261,7 @@ void smm_relocate(void) dump_smi_status(reset_smi_status()); dump_pm1_status(reset_pm1_status()); dump_gpe0_status(reset_gpe0_status()); + dump_alt_gp_smi_status(reset_alt_gp_smi_status()); dump_tco_status(reset_tco_status()); /* Enable SMI generation: @@ -244,6 +274,10 @@ void smm_relocate(void) */ smi_en = 0; /* reset SMI enables */ + +#if 0 + smi_en |= LEGACY_USB2_EN | LEGACY_USB_EN; +#endif smi_en |= TCO_EN; smi_en |= APMC_EN; #if DEBUG_PERIODIC_SMIS @@ -260,6 +294,11 @@ void smm_relocate(void) outl(smi_en, pmbase + SMI_EN); + pm1_en = 0; + pm1_en |= PWRBTN_EN; + pm1_en |= GBL_EN; + outw(pm1_en, pmbase + PM1_EN); + /** * There are several methods of raising a controlled SMI# via * software, among them: |