diff options
Diffstat (limited to 'src/arch/i386/boot')
| -rw-r--r-- | src/arch/i386/boot/acpi.c | 37 |
1 files changed, 28 insertions, 9 deletions
diff --git a/src/arch/i386/boot/acpi.c b/src/arch/i386/boot/acpi.c index c7046e1b31..b6aa19ff1b 100644 --- a/src/arch/i386/boot/acpi.c +++ b/src/arch/i386/boot/acpi.c @@ -1,8 +1,8 @@ /* * coreboot ACPI Table support * written by Stefan Reinauer <stepan@openbios.org> - * (C) 2004 SUSE LINUX AG - * (C) 2005 Stefan Reinauer + * Copyright (C) 2004 SUSE LINUX AG + * Copyright (C) 2005-2009 coresystems GmbH * * ACPI FADT, FACS, and DSDT table support added by * Nick Barker <nick.barker9@btinternet.com>, and those portions @@ -27,11 +27,6 @@ #include <arch/acpigen.h> #include <device/pci.h> -#if HAVE_ACPI_RESUME == 1 -/* this is to be filled by SB code - startup value what was found */ -u8 acpi_slp_type; -#endif - u8 acpi_checksum(u8 *table, u32 length) { u8 ret=0; @@ -81,7 +76,6 @@ int acpi_create_mcfg_mmconfig(acpi_mcfg_mmconfig_t *mmconfig, u32 base, u16 seg_ return (sizeof(acpi_mcfg_mmconfig_t)); } - int acpi_create_madt_lapic(acpi_madt_lapic_t *lapic, u8 cpu, u8 apic) { lapic->type=0; @@ -378,6 +372,29 @@ void acpi_write_rsdp(acpi_rsdp_t *rsdp, acpi_rsdt_t *rsdt) } #if HAVE_ACPI_RESUME == 1 +void suspend_resume(void) +{ + void *wake_vec; + +#if 0 +#if MEM_TRAIN_SEQ != 0 + #error "So far it works on AMD and MEM_TRAIN_SEQ == 0" +#endif + +#if _RAMBASE < 0x1F00000 + #error "For ACPI RESUME you need to have _RAMBASE at least 31MB" + #error "Chipset support (S3_NVRAM_EARLY and ACPI_IS_WAKEUP_EARLY functions and memory ctrl)" + #error "And coreboot memory reserved in mainboard.c" +#endif +#endif + /* if we happen to be resuming find wakeup vector and jump to OS */ + wake_vec = acpi_find_wakeup_vector(); + if (wake_vec) + acpi_jump_to_wakeup(wake_vec); +} + +/* this is to be filled by SB code - startup value what was found */ +u8 acpi_slp_type = 0; int acpi_get_sleep_type(void) { @@ -461,8 +478,10 @@ void *acpi_find_wakeup_vector(void) printk_debug("FADT found at %p\n", fadt); facs = fadt->firmware_ctrl; - if (facs == NULL) + if (facs == NULL) { + printk_debug("No FACS found, wake up from S3 not possible.\n"); return NULL; + } printk_debug("FACS found at %p\n", facs); wake_vec = (void *) facs->firmware_waking_vector; |