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Add code to set the clock speed for Winbond W83627THF/THG.

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Change-Id: I984404dd1df50b3ba423ac610283b9bf8bca5a31
Signed-off-by: Idwer Vollering <vidwer@gmail.com>
Reviewed-on: http://review.coreboot.org/412
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This commit is contained in:
Idwer Vollering
2011-11-07 17:48:33 +01:00
committed by Stefan Reinauer
parent 3d1d6bb4ec
commit 355092b7b8
2 changed files with 13 additions and 0 deletions
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11
src/superio/winbond/w83627thg/early_serial.c
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@@ -45,3 +45,14 @@ static void inline w83627thg_enable_serial(device_t dev, u16 iobase)
pnp_set_enable(dev, 1); pnp_set_enable(dev, 1);
pnp_exit_ext_func_mode(dev); pnp_exit_ext_func_mode(dev);
} }
#ifndef __ROMCC__
void w83627thg_set_clksel_48(device_t dev) {
u8 reg8;
pnp_enter_ext_func_mode(dev);
reg8 = pnp_read_config(dev, 0x24);
reg8 |= (1 << 6); /* Set CLKSEL (clock input on pin 1) to 48MHz. */
pnp_write_config(dev, 0x24, reg8);
pnp_exit_ext_func_mode(dev);
}
#endif

2
src/superio/winbond/w83627thg/w83627thg.h
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@@ -34,4 +34,6 @@
#define W83627THG_ACPI 10 #define W83627THG_ACPI 10
#define W83627THG_HWM 11 /* Hardware monitor */ #define W83627THG_HWM 11 /* Hardware monitor */
void w83627thg_set_clksel_48(device_t dev);
#endif #endif