diff options
Diffstat (limited to 'src/southbridge/intel/i82801jx/lpc.c')
| -rw-r--r-- | src/southbridge/intel/i82801jx/lpc.c | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/src/southbridge/intel/i82801jx/lpc.c b/src/southbridge/intel/i82801jx/lpc.c index 39b662a1a7..ead2b8ad9b 100644 --- a/src/southbridge/intel/i82801jx/lpc.c +++ b/src/southbridge/intel/i82801jx/lpc.c @@ -13,6 +13,7 @@ #include <arch/ioapic.h> #include <acpi/acpi.h> #include <cpu/x86/smm.h> +#include <cpu/intel/speedstep.h> #include <acpi/acpigen.h> #include <arch/smp/mpspec.h> #include "chip.h" @@ -139,6 +140,20 @@ static void i82801jx_gpi_routing(struct device *dev) pci_write_config32(dev, D31F0_GPIO_ROUT, reg32); } +bool southbridge_support_c5(void) +{ + struct device *lpc_dev = __pci_0_1f_0; + struct southbridge_intel_i82801jx_config *config = lpc_dev->chip_info; + return config->c5_enable == 1; +} + +bool southbridge_support_c6(void) +{ + struct device *lpc_dev = __pci_0_1f_0; + struct southbridge_intel_i82801jx_config *config = lpc_dev->chip_info; + return config->c6_enable == 1; +} + static void i82801jx_power_options(struct device *dev) { u8 reg8; @@ -218,15 +233,15 @@ static void i82801jx_power_options(struct device *dev) reg16 |= (1 << 10); // BIOS_PCI_EXP_EN - Desktop/Mobile only if (CONFIG(DEBUG_PERIODIC_SMI)) reg16 |= (3 << 0); // Periodic SMI every 8s - if (config->c5_enable) + if (southbridge_support_c5()) reg16 |= (1 << 11); /* Enable C5, C6 and PMSYNC# */ pci_write_config16(dev, D31F0_GEN_PMCON_1, reg16); /* Set exit timings for C5/C6. */ - if (config->c5_enable) { + if (southbridge_support_c5()) { reg8 = pci_read_config8(dev, D31F0_C5_EXIT_TIMING); reg8 &= ~((7 << 3) | (7 << 0)); - if (config->c6_enable) + if (southbridge_support_c6()) reg8 |= (5 << 3) | (3 << 0); /* 38-44us PMSYNC# to STPCLK#, 95-102us DPRSTP# to STP_CPU# */ else |