diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/amd/stoneyridge/include/soc/southbridge.h | 3 | ||||
| -rw-r--r-- | src/soc/amd/stoneyridge/southbridge.c | 12 |
2 files changed, 15 insertions, 0 deletions
diff --git a/src/soc/amd/stoneyridge/include/soc/southbridge.h b/src/soc/amd/stoneyridge/include/soc/southbridge.h index acdaa8a16e..88403e61ad 100644 --- a/src/soc/amd/stoneyridge/include/soc/southbridge.h +++ b/src/soc/amd/stoneyridge/include/soc/southbridge.h @@ -32,6 +32,8 @@ #define PSP_MAILBOX_BAR_EN 0x10 /* Power management registers: 0xfed80300 or index/data at IO 0xcd6/cd7 */ +#define PM_ISA_CONTROL 0x04 +#define MMIO_EN BIT(1) #define PM_PCI_CTRL 0x08 #define FORCE_SLPSTATE_RETRY BIT(25) #define FORCE_STPCLK_RETRY BIT(24) @@ -349,6 +351,7 @@ void southbridge_final(void *chip_info); void southbridge_init(void *chip_info); void sb_lpc_port80(void); void sb_lpc_decode(void); +void sb_acpi_mmio_decode(void); void sb_pci_port80(void); void sb_read_mode(u32 mode); void sb_set_spi100(u16 norm, u16 fast, u16 alt, u16 tpm); diff --git a/src/soc/amd/stoneyridge/southbridge.c b/src/soc/amd/stoneyridge/southbridge.c index 57bd3f08d2..c591c69d64 100644 --- a/src/soc/amd/stoneyridge/southbridge.c +++ b/src/soc/amd/stoneyridge/southbridge.c @@ -367,6 +367,18 @@ void sb_lpc_decode(void) pci_write_config32(SOC_LPC_DEV, LPC_IO_PORT_DECODE_ENABLE, tmp); } +void sb_acpi_mmio_decode(void) +{ + uint8_t byte; + + /* Enable ACPI MMIO range 0xfed80000 - 0xfed81fff */ + outb(PM_ISA_CONTROL, PM_INDEX); + byte = inb(PM_DATA); + byte |= MMIO_EN; + outb(PM_ISA_CONTROL, PM_INDEX); + outb(byte, PM_DATA); +} + void sb_clk_output_48Mhz(void) { u32 ctrl; |