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S3 feanture of SB800. Compiliant with SB700. 

Signed-off-by: Zheng Bao <zheng.bao@amd.com>
Acked-by: Zheng Bao <zheng.bao@amd.com>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6280 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Zheng Bao 2011-01-20 05:59:22 +00:00 committed by Zheng Bao
parent 79c04d559a
commit a4da254a39
2 changed files with 57 additions and 1 deletions
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50
src/southbridge/amd/sb800/early_setup.c
View File

@ -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

8
src/southbridge/amd/sb800/sb800.h
View File

@ -24,6 +24,8 @@
#include "chip.h"
/* Power management index/data registers */
#define BIOSRAM_INDEX 0xcd4
#define BIOSRAM_DATA 0xcd5
#define PM_INDEX 0xcd6
#define PM_DATA 0xcd7
#define PM2_INDEX 0xcd0
@ -47,6 +49,8 @@ extern void set_sm_enable_bits(device_t sm_dev, u32 reg_pos, u32 mask, u32 val);
#define REV_SB800_A11 0x11
#define REV_SB800_A12 0x12
void sb800_enable(device_t dev);
#ifdef __PRE_RAM__
void sb800_lpc_port80(void);
void sb800_pci_port80(void);
@ -55,7 +59,9 @@ void sb800_clk_output_48Mhz(void);
/* void sb800_setup_sata_phys(struct device *dev); */
#endif
void sb800_enable(device_t dev);
int s3_save_nvram_early(u32 dword, int size, int nvram_pos);
int s3_load_nvram_early(int size, u32 *old_dword, int nvram_pos);
void sb800_enable_usbdebug(unsigned int port);
#endif /* SB800_H */