diff options
Diffstat (limited to 'src/southbridge')
| -rw-r--r-- | src/southbridge/intel/lynxpoint/lpc.c | 38 |
1 files changed, 19 insertions, 19 deletions
diff --git a/src/southbridge/intel/lynxpoint/lpc.c b/src/southbridge/intel/lynxpoint/lpc.c index 4464f919ee..232ad2ec95 100644 --- a/src/southbridge/intel/lynxpoint/lpc.c +++ b/src/southbridge/intel/lynxpoint/lpc.c @@ -70,6 +70,25 @@ static void pch_enable_serial_irqs(struct device *dev) #endif } +static void enable_hpet(struct device *const dev) +{ + u32 reg32; + size_t i; + + /* Assign unique bus/dev/fn for each HPET */ + for (i = 0; i < 8; ++i) + pci_write_config16(dev, LPC_HnBDF(i), + PCH_HPET_PCI_BUS << 8 | PCH_HPET_PCI_SLOT << 3 | i); + + /* Move HPET to default address 0xfed00000 and enable it */ + reg32 = RCBA32(HPTC); + reg32 |= (1 << 7); // HPET Address Enable + reg32 &= ~(3 << 0); + RCBA32(HPTC) = reg32; + /* Read it back to stick. It's affected by posted write syndrome. */ + RCBA32(HPTC); +} + /* PIRQ[n]_ROUT[3:0] - PIRQ Routing Control * 0x00 - 0000 = Reserved * 0x01 - 0001 = Reserved @@ -371,25 +390,6 @@ static void lpt_lp_pm_init(struct device *dev) RCBA32_OR(0x33c8, (1 << 15)); } -static void enable_hpet(struct device *const dev) -{ - u32 reg32; - size_t i; - - /* Assign unique bus/dev/fn for each HPET */ - for (i = 0; i < 8; ++i) - pci_write_config16(dev, LPC_HnBDF(i), - PCH_HPET_PCI_BUS << 8 | PCH_HPET_PCI_SLOT << 3 | i); - - /* Move HPET to default address 0xfed00000 and enable it */ - reg32 = RCBA32(HPTC); - reg32 |= (1 << 7); // HPET Address Enable - reg32 &= ~(3 << 0); - RCBA32(HPTC) = reg32; - /* Read it back to stick. It's affected by posted write syndrome. */ - RCBA32(HPTC); -} - static void enable_clock_gating(struct device *dev) { /* LynxPoint Mobile */ |