diff options
Diffstat (limited to 'src/southbridge/intel/i82801gx')
| -rw-r--r-- | src/southbridge/intel/i82801gx/Kconfig | 1 | ||||
| -rw-r--r-- | src/southbridge/intel/i82801gx/i82801gx.h | 1 | ||||
| -rw-r--r-- | src/southbridge/intel/i82801gx/smi.c | 257 | ||||
| -rw-r--r-- | src/southbridge/intel/i82801gx/smihandler.c | 626 |
4 files changed, 8 insertions, 877 deletions
diff --git a/src/southbridge/intel/i82801gx/Kconfig b/src/southbridge/intel/i82801gx/Kconfig index 28d42ffbe9..d4615faf7d 100644 --- a/src/southbridge/intel/i82801gx/Kconfig +++ b/src/southbridge/intel/i82801gx/Kconfig @@ -28,6 +28,7 @@ config SOUTHBRIDGE_INTEL_I82801GX select HAVE_INTEL_CHIPSET_LOCKDOWN select SOUTHBRIDGE_INTEL_COMMON_RCBA_PIRQ select INTEL_HAS_TOP_SWAP + select SOUTHBRIDGE_INTEL_COMMON_SMM if SOUTHBRIDGE_INTEL_I82801GX diff --git a/src/southbridge/intel/i82801gx/i82801gx.h b/src/southbridge/intel/i82801gx/i82801gx.h index d14a809f66..40c2bb72e3 100644 --- a/src/southbridge/intel/i82801gx/i82801gx.h +++ b/src/southbridge/intel/i82801gx/i82801gx.h @@ -42,7 +42,6 @@ #if !defined(__SIMPLE_DEVICE__) void i82801gx_enable(struct device *dev); #endif -void gpi_route_interrupt(u8 gpi, u8 mode); #else void enable_smbus(void); int smbus_read_byte(unsigned int device, unsigned int address); diff --git a/src/southbridge/intel/i82801gx/smi.c b/src/southbridge/intel/i82801gx/smi.c index 8cfd511ae4..5618db7840 100644 --- a/src/southbridge/intel/i82801gx/smi.c +++ b/src/southbridge/intel/i82801gx/smi.c @@ -23,6 +23,7 @@ #include <cpu/x86/cache.h> #include <cpu/x86/smm.h> #include <string.h> +#include <southbridge/intel/common/pmutil.h> #include "i82801gx.h" /* I945 */ @@ -38,253 +39,6 @@ */ static u16 pmbase = DEFAULT_PMBASE; -/** - * @brief read and clear PM1_STS - * @return PM1_STS register - */ -static u16 reset_pm1_status(void) -{ - u16 reg16; - - reg16 = inw(pmbase + PM1_STS); - /* set status bits are cleared by writing 1 to them */ - outw(reg16, pmbase + PM1_STS); - - return reg16; -} - -static void dump_pm1_status(u16 pm1_sts) -{ - printk(BIOS_DEBUG, "PM1_STS: "); - if (pm1_sts & (1 << 15)) - printk(BIOS_DEBUG, "WAK "); - if (pm1_sts & (1 << 14)) - printk(BIOS_DEBUG, "PCIEXPWAK "); - if (pm1_sts & (1 << 11)) - printk(BIOS_DEBUG, "PRBTNOR "); - if (pm1_sts & (1 << 10)) - printk(BIOS_DEBUG, "RTC "); - if (pm1_sts & (1 << 8)) - printk(BIOS_DEBUG, "PWRBTN "); - if (pm1_sts & (1 << 5)) - printk(BIOS_DEBUG, "GBL "); - if (pm1_sts & (1 << 4)) - printk(BIOS_DEBUG, "BM "); - if (pm1_sts & (1 << 0)) - printk(BIOS_DEBUG, "TMROF "); - printk(BIOS_DEBUG, "\n"); -} - -/** - * @brief read and clear SMI_STS - * @return SMI_STS register - */ -static u32 reset_smi_status(void) -{ - u32 reg32; - - reg32 = inl(pmbase + SMI_STS); - /* set status bits are cleared by writing 1 to them */ - outl(reg32, pmbase + SMI_STS); - - return reg32; -} - -static void dump_smi_status(u32 smi_sts) -{ - printk(BIOS_DEBUG, "SMI_STS: "); - if (smi_sts & (1 << 26)) - printk(BIOS_DEBUG, "SPI "); - if (smi_sts & (1 << 25)) - printk(BIOS_DEBUG, "EL_SMI "); - if (smi_sts & (1 << 21)) - printk(BIOS_DEBUG, "MONITOR "); - if (smi_sts & (1 << 20)) - printk(BIOS_DEBUG, "PCI_EXP_SMI "); - if (smi_sts & (1 << 18)) - printk(BIOS_DEBUG, "INTEL_USB2 "); - if (smi_sts & (1 << 17)) - printk(BIOS_DEBUG, "LEGACY_USB2 "); - if (smi_sts & (1 << 16)) - printk(BIOS_DEBUG, "SMBUS_SMI "); - if (smi_sts & (1 << 15)) - printk(BIOS_DEBUG, "SERIRQ_SMI "); - if (smi_sts & (1 << 14)) - printk(BIOS_DEBUG, "PERIODIC "); - if (smi_sts & (1 << 13)) - printk(BIOS_DEBUG, "TCO "); - if (smi_sts & (1 << 12)) - printk(BIOS_DEBUG, "DEVMON "); - if (smi_sts & (1 << 11)) - printk(BIOS_DEBUG, "MCSMI "); - if (smi_sts & (1 << 10)) - printk(BIOS_DEBUG, "GPI "); - if (smi_sts & (1 << 9)) - printk(BIOS_DEBUG, "GPE0 "); - if (smi_sts & (1 << 8)) - printk(BIOS_DEBUG, "PM1 "); - if (smi_sts & (1 << 6)) - printk(BIOS_DEBUG, "SWSMI_TMR "); - if (smi_sts & (1 << 5)) - printk(BIOS_DEBUG, "APM "); - if (smi_sts & (1 << 4)) - printk(BIOS_DEBUG, "SLP_SMI "); - if (smi_sts & (1 << 3)) - printk(BIOS_DEBUG, "LEGACY_USB "); - if (smi_sts & (1 << 2)) - printk(BIOS_DEBUG, "BIOS "); - printk(BIOS_DEBUG, "\n"); -} - - -/** - * @brief read and clear GPE0_STS - * @return GPE0_STS register - */ -static u32 reset_gpe0_status(void) -{ - u32 reg32; - - reg32 = inl(pmbase + GPE0_STS); - /* set status bits are cleared by writing 1 to them */ - outl(reg32, pmbase + GPE0_STS); - - return reg32; -} - -static void dump_gpe0_status(u32 gpe0_sts) -{ - int i; - printk(BIOS_DEBUG, "GPE0_STS: "); - for (i = 31; i >= 16; i--) { - if (gpe0_sts & (1 << i)) - printk(BIOS_DEBUG, "GPIO%d ", (i-16)); - } - if (gpe0_sts & (1 << 14)) - printk(BIOS_DEBUG, "USB4 "); - if (gpe0_sts & (1 << 13)) - printk(BIOS_DEBUG, "PME_B0 "); - if (gpe0_sts & (1 << 12)) - printk(BIOS_DEBUG, "USB3 "); - if (gpe0_sts & (1 << 11)) - printk(BIOS_DEBUG, "PME "); - if (gpe0_sts & (1 << 10)) - printk(BIOS_DEBUG, "EL_SCI/BATLOW "); - if (gpe0_sts & (1 << 9)) - printk(BIOS_DEBUG, "PCI_EXP "); - if (gpe0_sts & (1 << 8)) - printk(BIOS_DEBUG, "RI "); - if (gpe0_sts & (1 << 7)) - printk(BIOS_DEBUG, "SMB_WAK "); - if (gpe0_sts & (1 << 6)) - printk(BIOS_DEBUG, "TCO_SCI "); - if (gpe0_sts & (1 << 5)) - printk(BIOS_DEBUG, "AC97 "); - if (gpe0_sts & (1 << 4)) - printk(BIOS_DEBUG, "USB2 "); - if (gpe0_sts & (1 << 3)) - printk(BIOS_DEBUG, "USB1 "); - if (gpe0_sts & (1 << 2)) - printk(BIOS_DEBUG, "HOT_PLUG "); - if (gpe0_sts & (1 << 0)) - printk(BIOS_DEBUG, "THRM "); - printk(BIOS_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(BIOS_DEBUG, "ALT_GP_SMI_STS: "); - for (i = 15; i >= 0; i--) { - if (alt_gp_smi_sts & (1 << i)) - printk(BIOS_DEBUG, "GPI%d ", i); - } - printk(BIOS_DEBUG, "\n"); -} - - - -/** - * @brief read and clear TCOx_STS - * @return TCOx_STS registers - */ -static u32 reset_tco_status(void) -{ - u32 tcobase = pmbase + 0x60; - u32 reg32; - - reg32 = inl(tcobase + 0x04); - /* set status bits are cleared by writing 1 to them */ - outl(reg32 & ~(1 << 18), tcobase + 0x04); // Don't clear BOOT_STS before SECOND_TO_STS - if (reg32 & (1 << 18)) - outl(reg32 & (1 << 18), tcobase + 0x04); // clear BOOT_STS - - return reg32; -} - - -static void dump_tco_status(u32 tco_sts) -{ - printk(BIOS_DEBUG, "TCO_STS: "); - if (tco_sts & (1 << 20)) - printk(BIOS_DEBUG, "SMLINK_SLV "); - if (tco_sts & (1 << 18)) - printk(BIOS_DEBUG, "BOOT "); - if (tco_sts & (1 << 17)) - printk(BIOS_DEBUG, "SECOND_TO "); - if (tco_sts & (1 << 16)) - printk(BIOS_DEBUG, "INTRD_DET "); - if (tco_sts & (1 << 12)) - printk(BIOS_DEBUG, "DMISERR "); - if (tco_sts & (1 << 10)) - printk(BIOS_DEBUG, "DMISMI "); - if (tco_sts & (1 << 9)) - printk(BIOS_DEBUG, "DMISCI "); - if (tco_sts & (1 << 8)) - printk(BIOS_DEBUG, "BIOSWR "); - if (tco_sts & (1 << 7)) - printk(BIOS_DEBUG, "NEWCENTURY "); - if (tco_sts & (1 << 3)) - printk(BIOS_DEBUG, "TIMEOUT "); - if (tco_sts & (1 << 2)) - printk(BIOS_DEBUG, "TCO_INT "); - if (tco_sts & (1 << 1)) - printk(BIOS_DEBUG, "SW_TCO "); - if (tco_sts & (1 << 0)) - printk(BIOS_DEBUG, "NMI2SMI "); - printk(BIOS_DEBUG, "\n"); -} - - - -/** - * @brief Set the EOS bit - */ -static void smi_set_eos(void) -{ - u8 reg8; - - reg8 = inb(pmbase + SMI_EN); - reg8 |= EOS; - outb(reg8, pmbase + SMI_EN); -} - extern uint8_t smm_relocation_start, smm_relocation_end; static void *default_smm_area = NULL; @@ -429,12 +183,3 @@ void smm_lock(void) pci_write_config8(dev_find_slot(0, PCI_DEVFN(0, 0)), SMRAM, D_LCK | G_SMRAME | C_BASE_SEG); } - -void smm_setup_structures(void *gnvs, void *tcg, void *smi1) -{ - /* The GDT or coreboot table is going to live here. But a long time - * after we relocated the GNVS, so this is not troublesome. - */ - *(u32 *)0x500 = (u32)gnvs; - outb(0xea, 0xb2); -} diff --git a/src/southbridge/intel/i82801gx/smihandler.c b/src/southbridge/intel/i82801gx/smihandler.c index 3f537c07f0..1b4a063d0e 100644 --- a/src/southbridge/intel/i82801gx/smihandler.c +++ b/src/southbridge/intel/i82801gx/smihandler.c @@ -22,6 +22,7 @@ #include <device/pci_def.h> #include <halt.h> #include <pc80/mc146818rtc.h> +#include <southbridge/intel/common/pmutil.h> #include "i82801gx.h" /* I945 */ @@ -45,246 +46,10 @@ u8 smm_initialized = 0; */ global_nvs_t *gnvs = (global_nvs_t *)0x0; -static void alt_gpi_mask(u16 clr, u16 set) +void southbridge_update_gnvs(u8 apm_cnt, int *smm_done) { - u16 alt_gp = inw(pmbase + ALT_GP_SMI_EN); - alt_gp &= ~clr; - alt_gp |= set; - outw(alt_gp, pmbase + ALT_GP_SMI_EN); -} - -static void gpe0_mask(u32 clr, u32 set) -{ - u32 gpe0 = inl(pmbase + GPE0_EN); - gpe0 &= ~clr; - gpe0 |= set; - outl(gpe0, pmbase + GPE0_EN); -} - -void gpi_route_interrupt(u8 gpi, u8 mode) -{ - u32 gpi_rout; - if (gpi >= 16) - return; - - alt_gpi_mask(1 << gpi, 0); - gpe0_mask(1 << (gpi+16), 0); - - gpi_rout = pci_read_config32(PCI_DEV(0, 0x1f, 0), GPIO_ROUT); - gpi_rout &= ~(3 << (2 * gpi)); - gpi_rout |= ((mode & 3) << (2 * gpi)); - pci_write_config32(PCI_DEV(0, 0x1f, 0), GPIO_ROUT, gpi_rout); - - if (mode == GPI_IS_SCI) - gpe0_mask(0, 1 << (gpi+16)); - else if (mode == GPI_IS_SMI) - alt_gpi_mask(0, 1 << gpi); -} - -/** - * @brief read and clear PM1_STS - * @return PM1_STS register - */ -static u16 reset_pm1_status(void) -{ - u16 reg16; - - reg16 = inw(pmbase + PM1_STS); - /* set status bits are cleared by writing 1 to them */ - outw(reg16, pmbase + PM1_STS); - - return reg16; -} - -static void dump_pm1_status(u16 pm1_sts) -{ - printk(BIOS_SPEW, "PM1_STS: "); - if (pm1_sts & (1 << 15)) - printk(BIOS_SPEW, "WAK "); - if (pm1_sts & (1 << 14)) - printk(BIOS_SPEW, "PCIEXPWAK "); - if (pm1_sts & (1 << 11)) - printk(BIOS_SPEW, "PRBTNOR "); - if (pm1_sts & (1 << 10)) - printk(BIOS_SPEW, "RTC "); - if (pm1_sts & (1 << 8)) - printk(BIOS_SPEW, "PWRBTN "); - if (pm1_sts & (1 << 5)) - printk(BIOS_SPEW, "GBL "); - if (pm1_sts & (1 << 4)) - printk(BIOS_SPEW, "BM "); - if (pm1_sts & (1 << 0)) - printk(BIOS_SPEW, "TMROF "); - printk(BIOS_SPEW, "\n"); - int reg16 = inw(pmbase + PM1_EN); - printk(BIOS_SPEW, "PM1_EN: %x\n", reg16); -} - -/** - * @brief read and clear SMI_STS - * @return SMI_STS register - */ -static u32 reset_smi_status(void) -{ - u32 reg32; - - reg32 = inl(pmbase + SMI_STS); - /* set status bits are cleared by writing 1 to them */ - outl(reg32, pmbase + SMI_STS); - - return reg32; -} - -static void dump_smi_status(u32 smi_sts) -{ - printk(BIOS_DEBUG, "SMI_STS: "); - if (smi_sts & (1 << 26)) - printk(BIOS_DEBUG, "SPI "); - if (smi_sts & (1 << 25)) - printk(BIOS_DEBUG, "EL_SMI "); - if (smi_sts & (1 << 21)) - printk(BIOS_DEBUG, "MONITOR "); - if (smi_sts & (1 << 20)) - printk(BIOS_DEBUG, "PCI_EXP_SMI "); - if (smi_sts & (1 << 18)) - printk(BIOS_DEBUG, "INTEL_USB2 "); - if (smi_sts & (1 << 17)) - printk(BIOS_DEBUG, "LEGACY_USB2 "); - if (smi_sts & (1 << 16)) - printk(BIOS_DEBUG, "SMBUS_SMI "); - if (smi_sts & (1 << 15)) - printk(BIOS_DEBUG, "SERIRQ_SMI "); - if (smi_sts & (1 << 14)) - printk(BIOS_DEBUG, "PERIODIC "); - if (smi_sts & (1 << 13)) - printk(BIOS_DEBUG, "TCO "); - if (smi_sts & (1 << 12)) - printk(BIOS_DEBUG, "DEVMON "); - if (smi_sts & (1 << 11)) - printk(BIOS_DEBUG, "MCSMI "); - if (smi_sts & (1 << 10)) - printk(BIOS_DEBUG, "GPI "); - if (smi_sts & (1 << 9)) - printk(BIOS_DEBUG, "GPE0 "); - if (smi_sts & (1 << 8)) - printk(BIOS_DEBUG, "PM1 "); - if (smi_sts & (1 << 6)) - printk(BIOS_DEBUG, "SWSMI_TMR "); - if (smi_sts & (1 << 5)) - printk(BIOS_DEBUG, "APM "); - if (smi_sts & (1 << 4)) - printk(BIOS_DEBUG, "SLP_SMI "); - if (smi_sts & (1 << 3)) - printk(BIOS_DEBUG, "LEGACY_USB "); - if (smi_sts & (1 << 2)) - printk(BIOS_DEBUG, "BIOS "); - printk(BIOS_DEBUG, "\n"); -} - - -/** - * @brief read and clear GPE0_STS - * @return GPE0_STS register - */ -static u32 reset_gpe0_status(void) -{ - u32 reg32; - - reg32 = inl(pmbase + GPE0_STS); - /* set status bits are cleared by writing 1 to them */ - outl(reg32, pmbase + GPE0_STS); - - return reg32; -} - -static void dump_gpe0_status(u32 gpe0_sts) -{ - int i; - printk(BIOS_DEBUG, "GPE0_STS: "); - for (i = 31; i >= 16; i--) { - if (gpe0_sts & (1 << i)) - printk(BIOS_DEBUG, "GPIO%d ", (i-16)); - } - if (gpe0_sts & (1 << 14)) - printk(BIOS_DEBUG, "USB4 "); - if (gpe0_sts & (1 << 13)) - printk(BIOS_DEBUG, "PME_B0 "); - if (gpe0_sts & (1 << 12)) - printk(BIOS_DEBUG, "USB3 "); - if (gpe0_sts & (1 << 11)) - printk(BIOS_DEBUG, "PME "); - if (gpe0_sts & (1 << 10)) - printk(BIOS_DEBUG, "EL_SCI/BATLOW "); - if (gpe0_sts & (1 << 9)) - printk(BIOS_DEBUG, "PCI_EXP "); - if (gpe0_sts & (1 << 8)) - printk(BIOS_DEBUG, "RI "); - if (gpe0_sts & (1 << 7)) - printk(BIOS_DEBUG, "SMB_WAK "); - if (gpe0_sts & (1 << 6)) - printk(BIOS_DEBUG, "TCO_SCI "); - if (gpe0_sts & (1 << 5)) - printk(BIOS_DEBUG, "AC97 "); - if (gpe0_sts & (1 << 4)) - printk(BIOS_DEBUG, "USB2 "); - if (gpe0_sts & (1 << 3)) - printk(BIOS_DEBUG, "USB1 "); - if (gpe0_sts & (1 << 2)) - printk(BIOS_DEBUG, "HOT_PLUG "); - if (gpe0_sts & (1 << 0)) - printk(BIOS_DEBUG, "THRM "); - printk(BIOS_DEBUG, "\n"); -} - - -/** - * @brief read and clear TCOx_STS - * @return TCOx_STS registers - */ -static u32 reset_tco_status(void) -{ - u32 tcobase = pmbase + 0x60; - u32 reg32; - - reg32 = inl(tcobase + 0x04); - /* set status bits are cleared by writing 1 to them */ - outl(reg32 & ~(1 << 18), tcobase + 0x04); // Don't clear BOOT_STS before SECOND_TO_STS - if (reg32 & (1 << 18)) - outl(reg32 & (1 << 18), tcobase + 0x04); // clear BOOT_STS - - return reg32; -} - -static void dump_tco_status(u32 tco_sts) -{ - printk(BIOS_DEBUG, "TCO_STS: "); - if (tco_sts & (1 << 20)) - printk(BIOS_DEBUG, "SMLINK_SLV "); - if (tco_sts & (1 << 18)) - printk(BIOS_DEBUG, "BOOT "); - if (tco_sts & (1 << 17)) - printk(BIOS_DEBUG, "SECOND_TO "); - if (tco_sts & (1 << 16)) - printk(BIOS_DEBUG, "INTRD_DET "); - if (tco_sts & (1 << 12)) - printk(BIOS_DEBUG, "DMISERR "); - if (tco_sts & (1 << 10)) - printk(BIOS_DEBUG, "DMISMI "); - if (tco_sts & (1 << 9)) - printk(BIOS_DEBUG, "DMISCI "); - if (tco_sts & (1 << 8)) - printk(BIOS_DEBUG, "BIOSWR "); - if (tco_sts & (1 << 7)) - printk(BIOS_DEBUG, "NEWCENTURY "); - if (tco_sts & (1 << 3)) - printk(BIOS_DEBUG, "TIMEOUT "); - if (tco_sts & (1 << 2)) - printk(BIOS_DEBUG, "TCO_INT "); - if (tco_sts & (1 << 1)) - printk(BIOS_DEBUG, "SW_TCO "); - if (tco_sts & (1 << 0)) - printk(BIOS_DEBUG, "NMI2SMI "); - printk(BIOS_DEBUG, "\n"); + gnvs = *(global_nvs_t **)0x500; + *smm_done = 1; } int southbridge_io_trap_handler(int smif) @@ -304,312 +69,7 @@ int southbridge_io_trap_handler(int smif) return 0; } -/** - * @brief Set the EOS bit - */ -void southbridge_smi_set_eos(void) -{ - u8 reg8; - - reg8 = inb(pmbase + SMI_EN); - reg8 |= EOS; - outb(reg8, pmbase + SMI_EN); -} - -static void busmaster_disable_on_bus(int bus) -{ - int slot, func; - unsigned int val; - unsigned char hdr; - - for (slot = 0; slot < 0x20; slot++) { - for (func = 0; func < 8; func++) { - u32 reg32; - pci_devfn_t dev = PCI_DEV(bus, slot, func); - - val = pci_read_config32(dev, PCI_VENDOR_ID); - - if (val == 0xffffffff || val == 0x00000000 || - val == 0x0000ffff || val == 0xffff0000) - continue; - - /* Disable Bus Mastering for this one device */ - reg32 = pci_read_config32(dev, PCI_COMMAND); - reg32 &= ~PCI_COMMAND_MASTER; - pci_write_config32(dev, PCI_COMMAND, reg32); - - /* If this is a bridge, then follow it. */ - hdr = pci_read_config8(dev, PCI_HEADER_TYPE); - hdr &= 0x7f; - if (hdr == PCI_HEADER_TYPE_BRIDGE || - hdr == PCI_HEADER_TYPE_CARDBUS) { - unsigned int buses; - buses = pci_read_config32(dev, PCI_PRIMARY_BUS); - busmaster_disable_on_bus((buses >> 8) & 0xff); - } - } - } -} - - -static void southbridge_smi_sleep(unsigned int node, smm_state_save_area_t *state_save) -{ - u8 reg8; - u32 reg32; - u8 slp_typ; - u8 s5pwr = CONFIG_MAINBOARD_POWER_ON_AFTER_POWER_FAIL; - - // save and recover RTC port values - u8 tmp70, tmp72; - tmp70 = inb(0x70); - tmp72 = inb(0x72); - get_option(&s5pwr, "power_on_after_fail"); - outb(tmp70, 0x70); - outb(tmp72, 0x72); - - /* First, disable further SMIs */ - reg8 = inb(pmbase + SMI_EN); - reg8 &= ~SLP_SMI_EN; - outb(reg8, pmbase + SMI_EN); - - /* Figure out SLP_TYP */ - reg32 = inl(pmbase + PM1_CNT); - printk(BIOS_SPEW, "SMI#: SLP = 0x%08x\n", reg32); - slp_typ = acpi_sleep_from_pm1(reg32); - - /* Next, do the deed. - */ - - switch (slp_typ) { - case ACPI_S0: - printk(BIOS_DEBUG, "SMI#: Entering S0 (On)\n"); break; - case ACPI_S1: - printk(BIOS_DEBUG, "SMI#: Entering S1 (Assert STPCLK#)\n"); break; - case ACPI_S3: - printk(BIOS_DEBUG, "SMI#: Entering S3 (Suspend-To-RAM)\n"); - /* Invalidate the cache before going to S3 */ - wbinvd(); - break; - case ACPI_S4: - printk(BIOS_DEBUG, "SMI#: Entering S4 (Suspend-To-Disk)\n"); break; - case ACPI_S5: - printk(BIOS_DEBUG, "SMI#: Entering S5 (Soft Power off)\n"); - - outl(0, pmbase + GPE0_EN); - - /* Always set the flag in case CMOS was changed on runtime. For - * "KEEP", switch to "OFF" - KEEP is software emulated - */ - reg8 = pci_read_config8(PCI_DEV(0, 0x1f, 0), GEN_PMCON_3); - if (s5pwr == MAINBOARD_POWER_ON) - reg8 &= ~1; - else - reg8 |= 1; - pci_write_config8(PCI_DEV(0, 0x1f, 0), GEN_PMCON_3, reg8); - - /* also iterates over all bridges on bus 0 */ - busmaster_disable_on_bus(0); - break; - default: - printk(BIOS_DEBUG, "SMI#: ERROR: SLP_TYP reserved\n"); break; - } - -#if !IS_ENABLED(CONFIG_SMM_TSEG) - /* Unlock the SMI semaphore. We're currently in SMM, and the semaphore - * will never be unlocked because the next outl will switch off the CPU. - * This might open a small race between the smi_release_lock() and the outl() - * for other SMI handlers. Not sure if this could cause trouble. */ - if (slp_typ == ACPI_S3) - smi_release_lock(); -#endif - - /* Write back to the SLP register to cause the originally intended - * event again. We need to set BIT13 (SLP_EN) though to make the - * sleep happen. - */ - outl(reg32 | SLP_EN, pmbase + PM1_CNT); - - /* Make sure to stop executing code here for S3/S4/S5 */ - if (slp_typ >= ACPI_S3) - halt(); - /* In most sleep states, the code flow of this function ends at - * the line above. However, if we entered sleep state S1 and wake - * up again, we will continue to execute code in this function. - */ - reg32 = inl(pmbase + PM1_CNT); - if (reg32 & SCI_EN) { - /* The OS is not an ACPI OS, so we set the state to S0 */ - reg32 &= ~(SLP_EN | SLP_TYP); - outl(reg32, pmbase + PM1_CNT); - } -} - -static void southbridge_smi_apmc(unsigned int node, smm_state_save_area_t *state_save) -{ - u32 pmctrl; - u8 reg8; - - /* Emulate B2 register as the FADT / Linux expects it */ - - reg8 = inb(APM_CNT); - if (mainboard_smi_apmc(reg8)) - return; - - switch (reg8) { - case APM_CNT_CST_CONTROL: - /* Calling this function seems to cause - * some kind of race condition in Linux - * and causes a kernel oops - */ - printk(BIOS_DEBUG, "C-state control\n"); - break; - case APM_CNT_PST_CONTROL: - /* Calling this function seems to cause - * some kind of race condition in Linux - * and causes a kernel oops - */ - printk(BIOS_DEBUG, "P-state control\n"); - break; - case APM_CNT_ACPI_DISABLE: - pmctrl = inl(pmbase + PM1_CNT); - pmctrl &= ~SCI_EN; - outl(pmctrl, pmbase + PM1_CNT); - printk(BIOS_DEBUG, "SMI#: ACPI disabled.\n"); - break; - case APM_CNT_ACPI_ENABLE: - pmctrl = inl(pmbase + PM1_CNT); - pmctrl |= SCI_EN; - outl(pmctrl, pmbase + PM1_CNT); - printk(BIOS_DEBUG, "SMI#: ACPI enabled.\n"); - break; - case APM_CNT_GNVS_UPDATE: - if (smm_initialized) { - printk(BIOS_DEBUG, "SMI#: SMM structures already initialized!\n"); - return; - } - gnvs = *(global_nvs_t **)0x500; - smm_initialized = 1; - printk(BIOS_DEBUG, "SMI#: Setting up structures to %p\n", gnvs); - break; - default: - printk(BIOS_DEBUG, "SMI#: Unknown function APM_CNT=%02x\n", reg8); - } -} - -static void southbridge_smi_pm1(unsigned int node, smm_state_save_area_t *state_save) -{ - u16 pm1_sts; - volatile u8 cmos_status; - - pm1_sts = reset_pm1_status(); - dump_pm1_status(pm1_sts); - - /* While OSPM is not active, poweroff immediately - * on a power button event. - */ - if (pm1_sts & PWRBTN_STS) { - // power button pressed - u32 reg32; - reg32 = (7 << 10) | (1 << 13); - outl(reg32, pmbase + PM1_CNT); - } - - if (pm1_sts & RTC_STS) { - /* read RTC status register to disable the interrupt */ - cmos_status = cmos_read(RTC_REG_C); - printk(BIOS_DEBUG, "RTC IRQ status: %02X\n", cmos_status); - } -} - -static void southbridge_smi_gpe0(unsigned int node, smm_state_save_area_t *state_save) -{ - u32 gpe0_sts; - - gpe0_sts = reset_gpe0_status(); - dump_gpe0_status(gpe0_sts); -} - -static void southbridge_smi_gpi(unsigned int node, smm_state_save_area_t *state_save) -{ - u16 reg16; - reg16 = inw(pmbase + ALT_GP_SMI_STS); - outw(reg16, pmbase + ALT_GP_SMI_STS); - - reg16 &= inw(pmbase + ALT_GP_SMI_EN); - - mainboard_smi_gpi(reg16); - - if (reg16) - printk(BIOS_DEBUG, "GPI (mask %04x)\n", reg16); -} - -static void southbridge_smi_mc(unsigned int node, smm_state_save_area_t *state_save) -{ - u32 reg32; - - reg32 = inl(pmbase + SMI_EN); - - /* Are periodic SMIs enabled? */ - if ((reg32 & MCSMI_EN) == 0) - return; - - printk(BIOS_DEBUG, "Microcontroller SMI.\n"); -} - - - -static void southbridge_smi_tco(unsigned int node, smm_state_save_area_t *state_save) -{ - u32 tco_sts; - - tco_sts = reset_tco_status(); - - /* Any TCO event? */ - if (!tco_sts) - return; - - if (tco_sts & (1 << 8)) { - /* BIOSWR */ - u8 bios_cntl; - - bios_cntl = pci_read_config16(PCI_DEV(0, 0x1f, 0), 0xdc); - - if (bios_cntl & 1) { - /* BWE is RW, so the SMI was caused by a - * write to BWE, not by a write to the BIOS - */ - - /* This is the place where we notice someone - * is trying to tinker with the BIOS. We are - * trying to be nice and just ignore it. A more - * resolute answer would be to power down the - * box. - */ - printk(BIOS_DEBUG, "Switching back to RO\n"); - pci_write_config32(PCI_DEV(0, 0x1f, 0), 0xdc, (bios_cntl & ~1)); - } /* No else for now? */ - } else if (tco_sts & (1 << 3)) { /* TIMEOUT */ - /* Handle TCO timeout */ - printk(BIOS_DEBUG, "TCO Timeout.\n"); - } else if (!tco_sts) { - dump_tco_status(tco_sts); - } -} - -static void southbridge_smi_periodic(unsigned int node, smm_state_save_area_t *state_save) -{ - u32 reg32; - - reg32 = inl(pmbase + SMI_EN); - - /* Are periodic SMIs enabled? */ - if ((reg32 & PERIODIC_EN) == 0) - return; - - printk(BIOS_DEBUG, "Periodic SMI.\n"); -} - -static void southbridge_smi_monitor(unsigned int node, smm_state_save_area_t *state_save) +void southbridge_smi_monitor(void) { #define IOTRAP(x) (trap_sts & (1 << x)) u32 trap_sts, trap_cycle; @@ -654,80 +114,6 @@ static void southbridge_smi_monitor(unsigned int node, smm_state_save_area_t *st #undef IOTRAP } -typedef void (*smi_handler_t)(unsigned int node, - smm_state_save_area_t *state_save); - -smi_handler_t southbridge_smi[32] = { - NULL, // [0] reserved - NULL, // [1] reserved - NULL, // [2] BIOS_STS - NULL, // [3] LEGACY_USB_STS - southbridge_smi_sleep, // [4] SLP_SMI_STS - southbridge_smi_apmc, // [5] APM_STS - NULL, // [6] SWSMI_TMR_STS - NULL, // [7] reserved - southbridge_smi_pm1, // [8] PM1_STS - southbridge_smi_gpe0, // [9] GPE0_STS - southbridge_smi_gpi, // [10] GPI_STS - southbridge_smi_mc, // [11] MCSMI_STS - NULL, // [12] DEVMON_STS - southbridge_smi_tco, // [13] TCO_STS - southbridge_smi_periodic, // [14] PERIODIC_STS - NULL, // [15] SERIRQ_SMI_STS - NULL, // [16] SMBUS_SMI_STS - NULL, // [17] LEGACY_USB2_STS - NULL, // [18] INTEL_USB2_STS - NULL, // [19] reserved - NULL, // [20] PCI_EXP_SMI_STS - southbridge_smi_monitor, // [21] MONITOR_STS - NULL, // [22] reserved - NULL, // [23] reserved - NULL, // [24] reserved - NULL, // [25] EL_SMI_STS - NULL, // [26] SPI_STS - NULL, // [27] reserved - NULL, // [28] reserved - NULL, // [29] reserved - NULL, // [30] reserved - NULL // [31] reserved -}; - -/** - * @brief Interrupt handler for SMI# - * @param node - * @param state_save - */ - -void southbridge_smi_handler(unsigned int node, smm_state_save_area_t *state_save) +void southbridge_finalize_all(void) { - int i, dump = 0; - u32 smi_sts; - - /* Update global variable pmbase */ - pmbase = pci_read_config16(PCI_DEV(0, 0x1f, 0), 0x40) & 0xfffc; - - /* We need to clear the SMI status registers, or we won't see what's - * happening in the following calls. - */ - smi_sts = reset_smi_status(); - - /* Filter all non-enabled SMI events */ - // FIXME Double check, this clears MONITOR - // smi_sts &= inl(pmbase + SMI_EN); - - /* Call SMI sub handler for each of the status bits */ - for (i = 0; i < 31; i++) { - if (smi_sts & (1 << i)) { - if (southbridge_smi[i]) - southbridge_smi[i](node, state_save); - else { - printk(BIOS_DEBUG, "SMI_STS[%d] occured, but no " - "handler available.\n", i); - dump = 1; - } - } - } - - if (dump) - dump_smi_status(smi_sts); } |