diff options
Diffstat (limited to 'src/southbridge/intel/lynxpoint/pch.c')
| -rw-r--r-- | src/southbridge/intel/lynxpoint/pch.c | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/src/southbridge/intel/lynxpoint/pch.c b/src/southbridge/intel/lynxpoint/pch.c index cc3718d444..58c68cdf05 100644 --- a/src/southbridge/intel/lynxpoint/pch.c +++ b/src/southbridge/intel/lynxpoint/pch.c @@ -83,10 +83,18 @@ u16 get_gpiobase(void) #ifndef __SMM__ +/* Put device in D3Hot Power State */ +static void pch_enable_d3hot(device_t dev) +{ + u32 reg32 = pci_read_config32(dev, PCH_PCS); + reg32 |= PCH_PCS_PS_D3HOT; + pci_write_config32(dev, PCH_PCS, reg32); +} + /* Set bit in Function Disble register to hide this device */ -static void pch_hide_devfn(unsigned devfn) +static void pch_hide_devfn(device_t dev) { - switch (devfn) { + switch (dev->path.pci.devfn) { case PCI_DEVFN(19, 0): /* Audio DSP */ RCBA32_OR(FD, PCH_DISABLE_ADSPD); break; @@ -94,24 +102,31 @@ static void pch_hide_devfn(unsigned devfn) RCBA32_OR(FD, PCH_DISABLE_XHCI); break; case PCI_DEVFN(21, 0): /* DMA */ + pch_enable_d3hot(dev); pch_iobp_update(SIO_IOBP_FUNCDIS0, ~0UL, SIO_IOBP_FUNCDIS_DIS); break; case PCI_DEVFN(21, 1): /* I2C0 */ + pch_enable_d3hot(dev); pch_iobp_update(SIO_IOBP_FUNCDIS1, ~0UL, SIO_IOBP_FUNCDIS_DIS); break; case PCI_DEVFN(21, 2): /* I2C1 */ + pch_enable_d3hot(dev); pch_iobp_update(SIO_IOBP_FUNCDIS2, ~0UL, SIO_IOBP_FUNCDIS_DIS); break; case PCI_DEVFN(21, 3): /* SPI0 */ + pch_enable_d3hot(dev); pch_iobp_update(SIO_IOBP_FUNCDIS3, ~0UL, SIO_IOBP_FUNCDIS_DIS); break; case PCI_DEVFN(21, 4): /* SPI1 */ + pch_enable_d3hot(dev); pch_iobp_update(SIO_IOBP_FUNCDIS4, ~0UL, SIO_IOBP_FUNCDIS_DIS); break; case PCI_DEVFN(21, 5): /* UART0 */ + pch_enable_d3hot(dev); pch_iobp_update(SIO_IOBP_FUNCDIS5, ~0UL, SIO_IOBP_FUNCDIS_DIS); break; case PCI_DEVFN(21, 6): /* UART1 */ + pch_enable_d3hot(dev); pch_iobp_update(SIO_IOBP_FUNCDIS6, ~0UL, SIO_IOBP_FUNCDIS_DIS); break; case PCI_DEVFN(22, 0): /* MEI #1 */ @@ -127,6 +142,7 @@ static void pch_hide_devfn(unsigned devfn) RCBA32_OR(FD2, PCH_DISABLE_KT); break; case PCI_DEVFN(23, 0): /* SDIO */ + pch_enable_d3hot(dev); pch_iobp_update(SIO_IOBP_FUNCDIS7, ~0UL, SIO_IOBP_FUNCDIS_DIS); break; case PCI_DEVFN(25, 0): /* Gigabit Ethernet */ @@ -146,7 +162,7 @@ static void pch_hide_devfn(unsigned devfn) case PCI_DEVFN(28, 5): /* PCI Express Root Port 6 */ case PCI_DEVFN(28, 6): /* PCI Express Root Port 7 */ case PCI_DEVFN(28, 7): /* PCI Express Root Port 8 */ - RCBA32_OR(FD, PCH_DISABLE_PCIE(PCI_FUNC(devfn))); + RCBA32_OR(FD, PCH_DISABLE_PCIE(PCI_FUNC(dev->path.pci.devfn))); break; case PCI_DEVFN(29, 0): /* EHCI #1 */ RCBA32_OR(FD, PCH_DISABLE_EHCI1); @@ -404,7 +420,7 @@ static void pch_pcie_enable(device_t dev) new_rpfn |= RPFN_HIDE(PCI_FUNC(dev->path.pci.devfn)); /* Hide this device if possible */ - pch_hide_devfn(dev->path.pci.devfn); + pch_hide_devfn(dev); } else { int fn; @@ -463,7 +479,7 @@ void pch_enable(device_t dev) pci_write_config32(dev, PCI_COMMAND, reg32); /* Hide this device if possible */ - pch_hide_devfn(dev->path.pci.devfn); + pch_hide_devfn(dev); } else { /* Enable SERR */ reg32 = pci_read_config32(dev, PCI_COMMAND); |