diff options
| author | Roger Zauner <roger@eskimo.com> | 2007-05-11 11:17:58 +0000 |
|---|---|---|
| committer | Uwe Hermann <uwe@hermann-uwe.de> | 2007-05-11 11:17:58 +0000 |
| commit | 298a693c6b5909d93fc25c95a975c3f8433aff1d (patch) | |
| tree | 904bd7862abbfeed51e164667b99eebdb37de233 /src/superio/winbond | |
| parent | f03e4e97ce8dae953735a595a04a62e7b01f6c93 (diff) | |
The Super I/O needs 0x87 sent twice to 0x2e (or 0x4e) to enable extended
function (power-on strapping). Although this is already done in superio.c,
it's not being done when w83627thf_early_serial.c is executed.
As such, no console_init() without it.
Signed-off-by: Roger Zauner <roger@eskimo.com>
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2662 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/superio/winbond')
| -rw-r--r-- | src/superio/winbond/w83627thf/w83627thf_early_serial.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/src/superio/winbond/w83627thf/w83627thf_early_serial.c b/src/superio/winbond/w83627thf/w83627thf_early_serial.c index fb3598c102..325d14dd1f 100644 --- a/src/superio/winbond/w83627thf/w83627thf_early_serial.c +++ b/src/superio/winbond/w83627thf/w83627thf_early_serial.c @@ -1,11 +1,25 @@ #include <arch/romcc_io.h> #include "w83627thf.h" +static inline void pnp_enter_ext_func_mode(device_t dev) +{ + unsigned int port = dev >> 8; + outb(0x87, port); + outb(0x87, port); +} + +static void pnp_exit_ext_func_mode(device_t dev) +{ + unsigned int port = dev >> 8; + outb(0xaa, port); +} -static void w83627thf_enable_serial(device_t dev, unsigned iobase) +static void w83627thf_enable_serial(device_t dev, unsigned int iobase) { + pnp_enter_ext_func_mode(dev); pnp_set_logical_device(dev); pnp_set_enable(dev, 0); pnp_set_iobase(dev, PNP_IDX_IO0, iobase); pnp_set_enable(dev, 1); + pnp_exit_ext_func_mode(dev); } |