diff options
Diffstat (limited to 'src/superio/winbond/common')
| -rw-r--r-- | src/superio/winbond/common/early_init.c (renamed from src/superio/winbond/common/early_serial.c) | 13 | ||||
| -rw-r--r-- | src/superio/winbond/common/winbond.h | 1 |
2 files changed, 13 insertions, 1 deletions
diff --git a/src/superio/winbond/common/early_serial.c b/src/superio/winbond/common/early_init.c index aebbd38b46..7c3ce2b3a5 100644 --- a/src/superio/winbond/common/early_serial.c +++ b/src/superio/winbond/common/early_init.c @@ -15,7 +15,7 @@ */ /* - * A generic romstage (pre-ram) driver for Winbond variant Super I/O chips. + * A generic romstage (pre-ram) driver for various Winbond Super I/O chips. * * The following is derived directly from the vendor Winbond's data-sheets: * @@ -79,3 +79,14 @@ void winbond_set_pinmux(pnp_devfn_t dev, uint8_t offset, uint8_t mask, uint8_t s pnp_write_config(dev, offset, byte); pnp_exit_conf_state(dev); } + +void winbond_set_clksel_48(pnp_devfn_t dev) +{ + u8 reg8; + + pnp_enter_conf_state(dev); + reg8 = pnp_read_config(dev, 0x24); + reg8 |= (1 << 6); /* Set the clock input to 48MHz. */ + pnp_write_config(dev, 0x24, reg8); + pnp_exit_conf_state(dev); +} diff --git a/src/superio/winbond/common/winbond.h b/src/superio/winbond/common/winbond.h index 6e67eeb83d..e472018bf1 100644 --- a/src/superio/winbond/common/winbond.h +++ b/src/superio/winbond/common/winbond.h @@ -22,6 +22,7 @@ void winbond_enable_serial(pnp_devfn_t dev, uint16_t iobase); void winbond_set_pinmux(pnp_devfn_t dev, uint8_t offset, uint8_t mask, uint8_t state); +void winbond_set_clksel_48(pnp_devfn_t dev); void pnp_enter_conf_state(pnp_devfn_t dev); void pnp_exit_conf_state(pnp_devfn_t dev); |