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author | Stefan Reinauer <stepan@coresystems.de> | 2010-01-17 13:49:07 +0000 |
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committer | Stefan Reinauer <stepan@openbios.org> | 2010-01-17 13:49:07 +0000 |
commit | 7a3d09521370d493c377955db9f1fa8c5dbb55bb (patch) | |
tree | 8cd4c4c711f108bdc24871171d99410541031b16 /src/southbridge/intel/i82801gx/i82801gx_smi.c | |
parent | 24b4df5f9904216e1651b087e4e7a57f8d5220f9 (diff) | |
download | coreboot-staging-7a3d09521370d493c377955db9f1fa8c5dbb55bb.zip coreboot-staging-7a3d09521370d493c377955db9f1fa8c5dbb55bb.tar.gz |
ICH7 update
* change the code to use macros names instead of constants in many places
* SMI/ACPI: rework power-off code to work with old Linux kernels (2.6.12.x)
* SMI: Add support for mainboard GPI handler
* SMI: immediate power-off on power button press, if OSPM is not active
* Add fix for some USB errata
* Some register tweaks for mobile systems
* Enable configure SCI on interrupt 9 correctly.
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5026 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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 7fb4abf..7187b1a 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: |