[coreboot] [commit] r6384 - trunk/src/mainboard/asrock/939a785gmh

[repository service]

Author: ruik
Date: Sat Feb 26 20:46:08 2011
New Revision: 6384
URL: https://tracker.coreboot.org/trac/coreboot/changeset/6384

Log:
Following patch fills in the callbacks for PCIe x16 resets. This board uses GPM8,GPM9 as reset toggles.

Signed-off-by: Rudolf Marek <r.marek at assembler.cz> 
Acked-by: Peter Stuge <peter at stuge.se>

Modified:
   trunk/src/mainboard/asrock/939a785gmh/mainboard.c

Modified: trunk/src/mainboard/asrock/939a785gmh/mainboard.c
==============================================================================
--- trunk/src/mainboard/asrock/939a785gmh/mainboard.c	Sat Feb 26 19:42:04 2011	(r6383)
+++ trunk/src/mainboard/asrock/939a785gmh/mainboard.c	Sat Feb 26 20:46:08 2011	(r6384)
@@ -35,12 +35,31 @@
 void set_pcie_dereset(void);
 void set_pcie_reset(void);
 u8 is_dev3_present(void);
+
+static void pcie_rst_toggle(u8 val) {
+	u8 byte;
+
+	byte = pm_ioread(0x8d);
+	byte &= ~(3 << 1);
+	pm_iowrite(0x8d, byte);
+
+	byte = pm_ioread(0x94);
+	/* Output enable */
+	byte &= ~(3 << 2);
+	/* Toggle GPM8, GPM9 */
+	byte &= ~(3 << 0);
+	byte |= val;
+	pm_iowrite(0x94, byte);
+}
+
 void set_pcie_dereset()
 {
+    pcie_rst_toggle(0x3);
 }
 
 void set_pcie_reset()
 {
+    pcie_rst_toggle(0x0);
 }
 
 #if 0	     /* not tested yet */