diff options
Diffstat (limited to 'src/soc/amd/stoneyridge/southbridge.c')
| -rw-r--r-- | src/soc/amd/stoneyridge/southbridge.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/soc/amd/stoneyridge/southbridge.c b/src/soc/amd/stoneyridge/southbridge.c index eb4188219b..c8d66ac3f2 100644 --- a/src/soc/amd/stoneyridge/southbridge.c +++ b/src/soc/amd/stoneyridge/southbridge.c @@ -28,6 +28,7 @@ #include <amdblocks/agesawrapper.h> #include <amdblocks/reset.h> #include <soc/southbridge.h> +#include <soc/smbus.h> #include <soc/smi.h> #include <soc/amd_pci_int_defs.h> #include <delay.h> @@ -619,6 +620,17 @@ static void setup_misc(int *reboot) } } +static void fch_smbus_init(void) +{ + pm_write8(SMB_ASF_IO_BASE, SMB_BASE_ADDR >> 8); + smbus_write8(SMBUS_MMIO_BASE, SMBTIMING, SMB_SPEED_400KHZ); + /* Clear all SMBUS status bits */ + smbus_write8(SMBUS_MMIO_BASE, SMBHSTSTAT, SMBHST_STAT_CLEAR); + smbus_write8(SMBUS_MMIO_BASE, SMBSLVSTAT, SMBSLV_STAT_CLEAR); + smbus_write8(ASF_MMIO_BASE, SMBHSTSTAT, SMBHST_STAT_CLEAR); + smbus_write8(ASF_MMIO_BASE, SMBSLVSTAT, SMBSLV_STAT_CLEAR); +} + /* Before console init */ void bootblock_fch_early_init(void) { @@ -631,6 +643,7 @@ void bootblock_fch_early_init(void) sb_spibase(); sb_disable_4dw_burst(); /* Must be disabled on CZ(ST) */ sb_acpi_mmio_decode(); + fch_smbus_init(); sb_enable_cf9_io(); setup_spread_spectrum(&reboot); setup_misc(&reboot); |