From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001
From: André Fabian Silva Delgado <emulatorman@parabola.nu>
Date: Wed, 5 Aug 2015 17:04:01 -0300
Subject: Initial import

---
 arch/powerpc/platforms/40x/walnut.c | 67 +++++++++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 arch/powerpc/platforms/40x/walnut.c

(limited to 'arch/powerpc/platforms/40x/walnut.c')

diff --git a/arch/powerpc/platforms/40x/walnut.c b/arch/powerpc/platforms/40x/walnut.c
new file mode 100644
index 000000000..f7ac2d0fc
--- /dev/null
+++ b/arch/powerpc/platforms/40x/walnut.c
@@ -0,0 +1,67 @@
+/*
+ * Architecture- / platform-specific boot-time initialization code for
+ * IBM PowerPC 4xx based boards. Adapted from original
+ * code by Gary Thomas, Cort Dougan <cort@fsmlabs.com>, and Dan Malek
+ * <dan@net4x.com>.
+ *
+ * Copyright(c) 1999-2000 Grant Erickson <grant@lcse.umn.edu>
+ *
+ * Rewritten and ported to the merged powerpc tree:
+ * Copyright 2007 IBM Corporation
+ * Josh Boyer <jwboyer@linux.vnet.ibm.com>
+ *
+ * 2002 (c) MontaVista, Software, Inc.  This file is licensed under
+ * the terms of the GNU General Public License version 2.  This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+
+#include <linux/init.h>
+#include <linux/of_platform.h>
+#include <linux/rtc.h>
+
+#include <asm/machdep.h>
+#include <asm/prom.h>
+#include <asm/udbg.h>
+#include <asm/time.h>
+#include <asm/uic.h>
+#include <asm/pci-bridge.h>
+#include <asm/ppc4xx.h>
+
+static const struct of_device_id walnut_of_bus[] __initconst = {
+	{ .compatible = "ibm,plb3", },
+	{ .compatible = "ibm,opb", },
+	{ .compatible = "ibm,ebc", },
+	{},
+};
+
+static int __init walnut_device_probe(void)
+{
+	of_platform_bus_probe(NULL, walnut_of_bus, NULL);
+	of_instantiate_rtc();
+
+	return 0;
+}
+machine_device_initcall(walnut, walnut_device_probe);
+
+static int __init walnut_probe(void)
+{
+	unsigned long root = of_get_flat_dt_root();
+
+	if (!of_flat_dt_is_compatible(root, "ibm,walnut"))
+		return 0;
+
+	pci_set_flags(PCI_REASSIGN_ALL_RSRC);
+
+	return 1;
+}
+
+define_machine(walnut) {
+	.name			= "Walnut",
+	.probe			= walnut_probe,
+	.progress		= udbg_progress,
+	.init_IRQ		= uic_init_tree,
+	.get_irq		= uic_get_irq,
+	.restart		= ppc4xx_reset_system,
+	.calibrate_decr		= generic_calibrate_decr,
+};
-- 
cgit v1.2.3-54-g00ecf