diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/southbridge/intel/i82801dx/i82801dx.h | 12 | ||||
| -rw-r--r-- | src/southbridge/intel/i82801dx/i82801dx_lpc.c | 112 |
2 files changed, 98 insertions, 26 deletions
diff --git a/src/southbridge/intel/i82801dx/i82801dx.h b/src/southbridge/intel/i82801dx/i82801dx.h index cb062bf1d4..a1c30c290e 100644 --- a/src/southbridge/intel/i82801dx/i82801dx.h +++ b/src/southbridge/intel/i82801dx/i82801dx.h @@ -37,6 +37,14 @@ extern void i82801dx_enable(device_t dev); #endif #define IO_APIC_ADDR 0xfec00000 + +/* + * HPET Memory Address Range. Possible values: + * 0xfed00000 for FED0_0000h - FED0_03FFh + * 0xfed01000 for FED0_1000h - FED0_13FFh + * 0xfed02000 for FED0_2000h - FED0_23FFh + * 0xfed03000 for FED0_3000h - FED0_33FFh + */ #define HPET_ADDR 0xfed00000 #define DEBUG_PERIODIC_SMIS 0 @@ -202,6 +210,10 @@ extern void i82801dx_enable(device_t dev); #define TCOBASE 0x60 /* TCO Base Address Register */ #define TCO1_CNT 0x08 /* TCO1 Control Register */ +#define GEN_PMCON_1 0xa0 +#define GEN_PMCON_2 0xa2 +#define GEN_PMCON_3 0xa4 + /* GEN_PMCON_3 bits */ #define RTC_BATTERY_DEAD (1 << 2) #define RTC_POWER_FAILED (1 << 1) diff --git a/src/southbridge/intel/i82801dx/i82801dx_lpc.c b/src/southbridge/intel/i82801dx/i82801dx_lpc.c index ae522c310b..c57bf0919b 100644 --- a/src/southbridge/intel/i82801dx/i82801dx_lpc.c +++ b/src/southbridge/intel/i82801dx/i82801dx_lpc.c @@ -64,7 +64,6 @@ static void i82801dx_enable_ioapic(struct device *dev) if (reg32 != (1 << 25)) die("APIC Error\n"); - /* TODO: From i82801ca, needed/useful on other ICH? */ *ioapic_index = 3; /* Select Boot Configuration register. */ *ioapic_data = 1; /* Use Processor System Bus to deliver interrupts. */ } @@ -91,37 +90,85 @@ static void i82801dx_pirq_init(device_t dev) pci_write_config8(dev, PIRQF_ROUT, config->pirqf_routing); pci_write_config8(dev, PIRQG_ROUT, config->pirqg_routing); pci_write_config8(dev, PIRQH_ROUT, config->pirqh_routing); - } static void i82801dx_power_options(device_t dev) { - u8 byte; - int pwr_on = -1; + u8 reg8; + u16 reg16, pmbase; + u32 reg32; + const char *state; + + int pwr_on = CONFIG_MAINBOARD_POWER_ON_AFTER_POWER_FAIL; int nmi_option; - /* power after power fail */ - /* FIXME this doesn't work! */ /* Which state do we want to goto after g3 (power restored)? * 0 == S0 Full On * 1 == S5 Soft Off + * + * If the option is not existent (Laptops), use MAINBOARD_POWER_ON. */ - pci_write_config8(dev, GEN_PMCON_3, pwr_on ? 0 : 1); - printk(BIOS_INFO, "Set power %s if power fails\n", pwr_on ? "on" : "off"); + if (get_option(&pwr_on, "power_on_after_fail") < 0) + pwr_on = MAINBOARD_POWER_ON; - /* Set up NMI on errors. */ - byte = inb(0x61); - byte &= ~(1 << 3); /* IOCHK# NMI Enable */ - byte &= ~(1 << 2); /* PCI SERR# Enable */ - outb(byte, 0x61); - byte = inb(0x70); + reg8 = pci_read_config8(dev, GEN_PMCON_3); + reg8 &= 0xfe; + switch (pwr_on) { + case MAINBOARD_POWER_OFF: + reg8 |= 1; + state = "off"; + break; + case MAINBOARD_POWER_ON: + reg8 &= ~1; + state = "on"; + break; + case MAINBOARD_POWER_KEEP: + reg8 &= ~1; + state = "state keep"; + break; + default: + state = "undefined"; + } + + reg8 &= ~(1 << 3); /* minimum asssertion is 1 to 2 RTCCLK */ + + pci_write_config8(dev, GEN_PMCON_3, reg8); + printk_info("Set power %s after power failure.\n", state); + /* Set up NMI on errors. */ + reg8 = inb(0x61); + reg8 &= 0x0f; /* Higher Nibble must be 0 */ + reg8 &= ~(1 << 3); /* IOCHK# NMI Enable */ + // reg8 &= ~(1 << 2); /* PCI SERR# Enable */ + reg8 |= (1 << 2); /* PCI SERR# Disable for now */ + outb(reg8, 0x61); + + reg8 = inb(0x70); nmi_option = NMI_OFF; get_option(&nmi_option, "nmi"); if (nmi_option) { - byte &= ~(1 << 7); /* Set NMI. */ - outb(byte, 0x70); + printk_info ("NMI sources enabled.\n"); + reg8 &= ~(1 << 7); /* Set NMI. */ + } else { + printk_info ("NMI sources disabled.\n"); + reg8 |= ( 1 << 7); /* Disable NMI. */ } + outb(reg8, 0x70); + + /* Set SMI# rate down and enable CPU_SLP# */ + reg16 = pci_read_config16(dev, GEN_PMCON_1); + reg16 &= ~(3 << 0); // SMI# rate 1 minute + reg16 |= (1 << 5); // CPUSLP_EN Desktop only + pci_write_config16(dev, GEN_PMCON_1, reg16); + + pmbase = pci_read_config16(dev, 0x40) & 0xfffe; + + /* Set up power management block and determine sleep mode */ + reg32 = inl(pmbase + 0x04); // PM1_CNT + + reg32 &= ~(7 << 10); // SLP_TYP + reg32 |= (1 << 0); // SCI_EN + outl(reg32, pmbase + 0x04); } static void gpio_init(device_t dev) @@ -182,23 +229,36 @@ static void i82801dx_lpc_decode_en(device_t dev) */ static void enable_hpet(struct device *dev) { - u32 reg32; - u32 code = (0 & 0x3); + u32 reg32, hpet, val; + /* Set HPET base address and enable it */ + printk_debug("Enabling HPET at 0x%x\n", HPET_ADDR); reg32 = pci_read_config32(dev, GEN_CNTL); - reg32 |= (1 << 17); /* Enable HPET. */ /* - * Bits [16:15] Memory Address Range - * 00 FED0_0000h - FED0_03FFh - * 01 FED0_1000h - FED0_13FFh - * 10 FED0_2000h - FED0_23FFh - * 11 FED0_3000h - FED0_33FFh + * Bit 17 is HPET enable bit. + * Bit 16:15 control the HPET base address. */ reg32 &= ~(3 << 15); /* Clear it */ - reg32 |= (code << 15); + + hpet = HPET_ADDR >> 12; + hpet &= 0x3; + + reg32 |= (hpet << 15); + reg32 |= (1 << 17); /* Enable HPET. */ pci_write_config32(dev, GEN_CNTL, reg32); - printk(BIOS_DEBUG, "Enabling HPET @0x%x\n", HPET_ADDR | (code << 12)); + /* Check to see whether it took */ + reg32 = pci_read_config32(dev, GEN_CNTL); + val = reg32 >> 15; + val &= 0x7; + + if ((val & 0x4) && (hpet == (val & 0x3))) { + printk_debug("HPET enabled at 0x%x\n", HPET_ADDR); + } else { + printk_err("HPET was not enabled correctly\n"); + reg32 &= ~(1 << 17); /* Clear Enable */ + pci_write_config32(dev, GEN_CNTL, reg32); + } } static void lpc_init(struct device *dev) |