diff options
Diffstat (limited to 'src/southbridge/amd/sb800/early_setup.c')
-rw-r--r-- | src/southbridge/amd/sb800/early_setup.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/src/southbridge/amd/sb800/early_setup.c b/src/southbridge/amd/sb800/early_setup.c index e9325043b5..248b1f5082 100644 --- a/src/southbridge/amd/sb800/early_setup.c +++ b/src/southbridge/amd/sb800/early_setup.c @@ -646,4 +646,54 @@ static int smbus_read_byte(u32 device, u32 address) { return do_smbus_read_byte(SMBUS_IO_BASE, device, address); } + +int s3_save_nvram_early(u32 dword, int size, int nvram_pos) { + int i; + printk(BIOS_DEBUG, "Writing %x of size %d to nvram pos: %d\n", dword, size, nvram_pos); + + for (i = 0; i<size; i++) { + outb(nvram_pos, BIOSRAM_INDEX); + outb((dword >>(8 * i)) & 0xff , BIOSRAM_DATA); + nvram_pos++; + } + + return nvram_pos; +} + +int s3_load_nvram_early(int size, u32 *old_dword, int nvram_pos) { + u32 data = *old_dword; + int i; + for (i = 0; i<size; i++) { + outb(nvram_pos, BIOSRAM_INDEX); + data &= ~(0xff << (i * 8)); + data |= inb(BIOSRAM_DATA) << (i *8); + nvram_pos++; + } + *old_dword = data; + printk(BIOS_DEBUG, "Loading %x of size %d to nvram pos:%d\n", *old_dword, size, + nvram_pos-size); + return nvram_pos; +} + +#if CONFIG_HAVE_ACPI_RESUME == 1 +static int acpi_is_wakeup_early(void) { + u16 tmp; + tmp = inw(ACPI_PM1_CNT_BLK); + printk(BIOS_DEBUG, "IN TEST WAKEUP %x\n", tmp); + return (((tmp & (7 << 10)) >> 10) == 3); +} +#endif + +struct cbmem_entry *get_cbmem_toc(void) { + uint32_t xdata = 0; + int xnvram_pos = 0xfc, xi; + for (xi = 0; xi<4; xi++) { + outb(xnvram_pos, BIOSRAM_INDEX); + xdata &= ~(0xff << (xi * 8)); + xdata |= inb(BIOSRAM_DATA) << (xi *8); + xnvram_pos++; + } + return (struct cbmem_entry *) xdata; +} + #endif |