From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@ppc970.osdl.org>
Date: Sat, 16 Apr 2005 15:20:36 -0700
Subject: Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
---
 arch/ppc64/kernel/iSeries_pci_reset.c | 104 ++++++++++++++++++++++++++++++++++
 1 file changed, 104 insertions(+)
 create mode 100644 arch/ppc64/kernel/iSeries_pci_reset.c

(limited to 'arch/ppc64/kernel/iSeries_pci_reset.c')

diff --git a/arch/ppc64/kernel/iSeries_pci_reset.c b/arch/ppc64/kernel/iSeries_pci_reset.c
new file mode 100644
index 00000000000..0f785e4584f
--- /dev/null
+++ b/arch/ppc64/kernel/iSeries_pci_reset.c
@@ -0,0 +1,104 @@
+#define PCIFR(...)
+/************************************************************************/
+/* File iSeries_pci_reset.c created by Allan Trautman on Mar 21 2001.   */
+/************************************************************************/
+/* This code supports the pci interface on the IBM iSeries systems.     */
+/* Copyright (C) 20yy  <Allan H Trautman> <IBM Corp>                    */
+/*                                                                      */
+/* This program is free software; you can redistribute it and/or modify */
+/* it under the terms of the GNU General Public License as published by */
+/* the Free Software Foundation; either version 2 of the License, or    */
+/* (at your option) any later version.                                  */
+/*                                                                      */
+/* This program is distributed in the hope that it will be useful,      */ 
+/* but WITHOUT ANY WARRANTY; without even the implied warranty of       */
+/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the        */
+/* GNU General Public License for more details.                         */
+/*                                                                      */
+/* You should have received a copy of the GNU General Public License    */ 
+/* along with this program; if not, write to the:                       */
+/* Free Software Foundation, Inc.,                                      */ 
+/* 59 Temple Place, Suite 330,                                          */ 
+/* Boston, MA  02111-1307  USA                                          */
+/************************************************************************/
+/* Change Activity:                                                     */
+/*   Created, March 20, 2001                                            */
+/*   April 30, 2001, Added return codes on functions.                   */
+/*   September 10, 2001, Ported to ppc64.                               */
+/* End Change Activity                                                  */
+/************************************************************************/
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/irq.h>
+#include <linux/delay.h>
+
+#include <asm/io.h>
+#include <asm/iSeries/HvCallPci.h>
+#include <asm/iSeries/HvTypes.h>
+#include <asm/iSeries/mf.h>
+#include <asm/pci.h>
+
+#include <asm/iSeries/iSeries_pci.h>
+#include "pci.h"
+
+/*
+ * Interface to toggle the reset line
+ * Time is in .1 seconds, need for seconds.
+ */
+int iSeries_Device_ToggleReset(struct pci_dev *PciDev, int AssertTime,
+		int DelayTime)
+{
+	unsigned int AssertDelay, WaitDelay;
+	struct iSeries_Device_Node *DeviceNode =
+		(struct iSeries_Device_Node *)PciDev->sysdata;
+
+ 	if (DeviceNode == NULL) { 
+		printk("PCI: Pci Reset Failed, Device Node not found for pci_dev %p\n",
+				PciDev);
+		return -1;
+	}
+	/*
+	 * Set defaults, Assert is .5 second, Wait is 3 seconds.
+	 */
+	if (AssertTime == 0)
+		AssertDelay = 500;
+	else
+		AssertDelay = AssertTime * 100;
+
+	if (DelayTime == 0)
+		WaitDelay = 3000;
+	else
+		WaitDelay = DelayTime * 100;
+
+	/*
+	 * Assert reset
+	 */
+	DeviceNode->ReturnCode = HvCallPci_setSlotReset(ISERIES_BUS(DeviceNode),
+			0x00, DeviceNode->AgentId, 1);
+	if (DeviceNode->ReturnCode == 0) {
+		msleep(AssertDelay);			/* Sleep for the time */
+		DeviceNode->ReturnCode =
+			HvCallPci_setSlotReset(ISERIES_BUS(DeviceNode),
+					0x00, DeviceNode->AgentId, 0);
+
+		/*
+   		 * Wait for device to reset
+		 */
+		msleep(WaitDelay);
+	}
+	if (DeviceNode->ReturnCode == 0)
+		PCIFR("Slot 0x%04X.%02 Reset\n", ISERIES_BUS(DeviceNode),
+				DeviceNode->AgentId);
+	else {
+		printk("PCI: Slot 0x%04X.%02X Reset Failed, RCode: %04X\n",
+				ISERIES_BUS(DeviceNode), DeviceNode->AgentId,
+				DeviceNode->ReturnCode);
+		PCIFR("Slot 0x%04X.%02X Reset Failed, RCode: %04X\n",
+				ISERIES_BUS(DeviceNode), DeviceNode->AgentId,
+				DeviceNode->ReturnCode);
+	}
+	return DeviceNode->ReturnCode;
+}
+EXPORT_SYMBOL(iSeries_Device_ToggleReset);
-- 
cgit v1.2.3-70-g09d2