[commit] r5125 - trunk/src/superio/winbond/w83627hf

[repository service]

Author: uwe
Date: Sun Feb 14 17:13:03 2010
New Revision: 5125
URL: http://tracker.coreboot.org/trac/coreboot/changeset/5125

Log:
Add w83627hf_set_clksel_48() function which sets CLKSEL to 48MHz.

The Win Ent platforms are using the Winbond W83627HG part, but this part does
not appear to enable 48MHz clock by default as claimed in the datasheet.

Signed-off-by: Anish K Patel 
Acked-by: Uwe Hermann

Modified:
   trunk/src/superio/winbond/w83627hf/w83627hf_early_serial.c

Modified: trunk/src/superio/winbond/w83627hf/w83627hf_early_serial.c
==============================================================================
--- trunk/src/superio/winbond/w83627hf/w83627hf_early_serial.c	Sat Feb 13 19:06:29 2010	(r5124)
+++ trunk/src/superio/winbond/w83627hf/w83627hf_early_serial.c	Sun Feb 14 17:13:03 2010	(r5125)
@@ -45,3 +45,13 @@
    pnp_set_enable(dev, 1);
    pnp_exit_ext_func_mode(dev);
 }
+
+static void w83627hf_set_clksel_48(device_t dev)
+{
+	unsigned port = dev >> 8;
+	pnp_enter_ext_func_mode(dev);
+	outb(0x24, port);
+	/* Set CLKSEL (clock input on pin 1) to 48MHz. */
+	outb(inb(port + 1) | (1 << 6), port + 1);
+	pnp_exit_ext_func_mode(dev);
+}