diff options
| author | Uwe Hermann <uwe@hermann-uwe.de> | 2010-11-10 18:22:11 +0000 |
|---|---|---|
| committer | Uwe Hermann <uwe@hermann-uwe.de> | 2010-11-10 18:22:11 +0000 |
| commit | d1a1d57adca92dd71f62dfb9363def532c3fc0e6 (patch) | |
| tree | b79e7be2c1f36d33edd04b5e4a0ec96d783af2d7 /src/superio/intel/i3100/i3100.h | |
| parent | 340fa9396b4b73fd894a15fe48882c98d74292ce (diff) | |
Restructure i3100 Super I/O driver to match the rest of the codebase.
- i3100_early_serial.c:
- Split out enter/exit functions as the other Super I/Os do.
- Make i3100_enable_serial() take a device_t as usual, and convert
it to use the standard pnp_* function instead of open-coding
the same functionality by hand.
- Factor out i3100_configure_uart_clk() from i3100_enable_serial(),
we do the same in various other Super I/Os, e.g. ITE ones.
- Add some #defines for register / bit values and some comments.
- Only functional change: Don't set bit 1 of SIW_CONFIGURATION, it's
marked as "READ ONLY, WRITES IGNORED" in the datasheet.
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6058 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/superio/intel/i3100/i3100.h')
| -rw-r--r-- | src/superio/intel/i3100/i3100.h | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/src/superio/intel/i3100/i3100.h b/src/superio/intel/i3100/i3100.h index f0d6426be0..6218e6d09f 100644 --- a/src/superio/intel/i3100/i3100.h +++ b/src/superio/intel/i3100/i3100.h @@ -46,6 +46,19 @@ #define I3100_SP2 0x05 /* Com2 */ #define I3100_WDT 0x06 /* Watchdog timer */ -#define I3100_SUPERIO_CONFIG_PORT 0x4e +/* Registers and bit definitions: */ + +#define I3100_SIW_CONFIGURATION 0x29 + +/* + * SIW_CONFIGURATION[3:2] = UART_CLK predivide + * 00: divide by 1 + * 01: divide by 8 + * 10: divide by 26 + * 11: reserved + */ +#define I3100_UART_CLK_PREDIVIDE_1 0x00 +#define I3100_UART_CLK_PREDIVIDE_8 0x01 +#define I3100_UART_CLK_PREDIVIDE_26 0x02 #endif |