diff options
Diffstat (limited to 'src/southbridge/intel/i82801gx/i82801gx_smi.c')
| -rw-r--r-- | src/southbridge/intel/i82801gx/i82801gx_smi.c | 54 |
1 files changed, 17 insertions, 37 deletions
diff --git a/src/southbridge/intel/i82801gx/i82801gx_smi.c b/src/southbridge/intel/i82801gx/i82801gx_smi.c index c8b5a16ccb..7fb4abfdaa 100644 --- a/src/southbridge/intel/i82801gx/i82801gx_smi.c +++ b/src/southbridge/intel/i82801gx/i82801gx_smi.c @@ -40,41 +40,6 @@ extern unsigned int smm_len; #define G_SMRAME (1 << 3) #define C_BASE_SEG ((0 << 2) | (1 << 1) | (0 << 0)) -/* ICH7 */ -#define PM1_STS 0x00 -#define PM1_EN 0x02 -#define PM1_CNT 0x04 -#define PM1_TMR 0x08 -#define PROC_CNT 0x10 -#define LV2 0x14 -#define LV3 0x15 -#define LV4 0x16 -#define PM2_CNT 0x20 // mobile only -#define GPE0_STS 0x28 -#define GPE0_EN 0x2c -#define SMI_EN 0x30 -#define EL_SMI_EN (1 << 25) // Intel Quick Resume Technology -#define INTEL_USB2_EN (1 << 18) // Intel-Specific USB2 SMI logic -#define LEGACY_USB2_EN (1 << 17) // Legacy USB2 SMI logic -#define PERIODIC_EN (1 << 14) // SMI on PERIODIC_STS in SMI_STS -#define TCO_EN (1 << 13) // Enable TCO Logic (BIOSWE et al) -#define MCSMI_EN (1 << 11) // Trap microcontroller range access -#define BIOS_RLS (1 << 7) // asserts SCI on bit set -#define SWSMI_TMR_EN (1 << 6) // start software smi timer on bit set -#define APMC_EN (1 << 5) // Writes to APM_CNT cause SMI# -#define SLP_SMI_EN (1 << 4) // Write to SLP_EN in PM1_CNT asserts SMI# -#define LEGACY_USB_EN (1 << 3) // Legacy USB circuit SMI logic -#define BIOS_EN (1 << 2) // Assert SMI# on setting GBL_RLS bit -#define EOS (1 << 1) // End of SMI (deassert SMI#) -#define GBL_SMI_EN (1 << 0) // SMI# generation at all? -#define SMI_STS 0x34 -#define ALT_GP_SMI_EN 0x38 -#define ALT_GP_SMI_STS 0x3a -#define GPE_CNTL 0x42 -#define DEVACT_STS 0x44 -#define SS_CNT 0x50 -#define C3_RES 0x54 - /* While we read PMBASE dynamically in case it changed, let's * initialize it with a sane value */ @@ -277,8 +242,23 @@ void smm_relocate(void) * No SMIs: * - on microcontroller writes (io 0x62/0x66) */ - outl(smi_en | (TCO_EN | APMC_EN | SLP_SMI_EN | BIOS_EN | - EOS | GBL_SMI_EN), pmbase + SMI_EN); + + smi_en = 0; /* reset SMI enables */ + smi_en |= TCO_EN; + smi_en |= APMC_EN; +#if DEBUG_PERIODIC_SMIS + /* Set DEBUG_PERIODIC_SMIS in i82801gx.h to debug using + * periodic SMIs. + */ + smi_en |= PERIODIC_EN; +#endif + smi_en |= SLP_SMI_EN; + smi_en |= BIOS_EN; + + /* The following need to be on for SMIs to happen */ + smi_en |= EOS | GBL_SMI_EN; + + outl(smi_en, pmbase + SMI_EN); /** * There are several methods of raising a controlled SMI# via |