From 9a713d9417fb71a8679d792eb174b3cee59dbda7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fran=C3=A7ois=20Revol?= <revol@free.fr>
Date: Sat, 22 Sep 2012 20:45:25 +0200
Subject: [PATCH] U-Boot: PPC: stub out OF calls

* For now this allows linking the kernel and the pci bus manager.
* Could later on be turned into a wrapper to FDT methods since the
concepts are similar.
---
 src/system/kernel/platform/u-boot/Jamfile     |   1 +
 .../kernel/platform/u-boot/openfirmware.cpp   | 224 ++++++++++++++++++
 2 files changed, 225 insertions(+)
 create mode 100644 src/system/kernel/platform/u-boot/openfirmware.cpp

diff --git a/src/system/kernel/platform/u-boot/Jamfile b/src/system/kernel/platform/u-boot/Jamfile
index d29857ba59..d1845da417 100644
--- a/src/system/kernel/platform/u-boot/Jamfile
+++ b/src/system/kernel/platform/u-boot/Jamfile
@@ -5,4 +5,5 @@ SubDirC++Flags $(TARGET_KERNEL_PIC_CCFLAGS) ;
 
 KernelMergeObject kernel_platform_u-boot.o :
 	platform.cpp
+	openfirmware.cpp
 ;
diff --git a/src/system/kernel/platform/u-boot/openfirmware.cpp b/src/system/kernel/platform/u-boot/openfirmware.cpp
new file mode 100644
index 0000000000..5ee024cd1b
--- /dev/null
+++ b/src/system/kernel/platform/u-boot/openfirmware.cpp
@@ -0,0 +1,224 @@
+/*
+ * Copyright 2003, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
+ * Distributed under the terms of the MIT License.
+ */
+
+#include <platform/openfirmware/devices.h>
+#include <platform/openfirmware/openfirmware.h>
+
+#include <stdarg.h>
+
+
+// FIXME: HACK: until we support multiple platforms at once in the kernel.
+
+int gChosen;
+
+
+status_t
+of_init(int (*openFirmwareEntry)(void *))
+{
+	gChosen = of_finddevice("/chosen");
+	if (gChosen == OF_FAILED)
+		return B_ERROR;
+
+	return B_OK;
+}
+
+
+int
+of_call_client_function(const char *method, int numArgs, int numReturns, ...)
+{
+	return OF_FAILED;
+}
+
+
+int
+of_interpret(const char *command, int numArgs, int numReturns, ...)
+{
+	return OF_FAILED;
+}
+
+
+int
+of_call_method(int handle, const char *method, int numArgs, int numReturns, ...)
+{
+	return OF_FAILED;
+}
+
+
+int
+of_finddevice(const char *device)
+{
+	return OF_FAILED;
+}
+
+
+status_t
+of_get_next_device(int *_cookie, int root, const char *type, char *path,
+	size_t pathSize)
+{
+	return B_ERROR;
+}
+
+
+/** Returns the first child of the given node
+ */
+
+int
+of_child(int node)
+{
+	return OF_FAILED;
+}
+
+
+/** Returns the next sibling of the given node
+ */
+
+int
+of_peer(int node)
+{
+	return OF_FAILED;
+}
+
+
+/** Returns the parent of the given node
+ */
+
+int
+of_parent(int node)
+{
+	return OF_FAILED;
+}
+
+
+int
+of_instance_to_path(int instance, char *pathBuffer, int bufferSize)
+{
+	return OF_FAILED;
+}
+
+
+int
+of_instance_to_package(int instance)
+{
+	return OF_FAILED;
+}
+
+
+int
+of_getprop(int package, const char *property, void *buffer, int bufferSize)
+{
+	return OF_FAILED;
+}
+
+
+int
+of_setprop(int package, const char *property, const void *buffer, int bufferSize)
+{
+	return OF_FAILED;
+}
+
+
+int
+of_getproplen(int package, const char *property)
+{
+	return OF_FAILED;
+}
+
+
+int
+of_nextprop(int package, const char *previousProperty, char *nextProperty)
+{
+	return OF_FAILED;
+}
+
+
+int
+of_package_to_path(int package, char *pathBuffer, int bufferSize)
+{
+	return OF_FAILED;
+}
+
+
+//	I/O functions
+
+
+int
+of_open(const char *nodeName)
+{
+	return OF_FAILED;
+}
+
+
+void
+of_close(int handle)
+{
+}
+
+
+int
+of_read(int handle, void *buffer, int bufferSize)
+{
+	return OF_FAILED;
+}
+
+
+int
+of_write(int handle, const void *buffer, int bufferSize)
+{
+	return OF_FAILED;
+}
+
+
+int
+of_seek(int handle, long long pos)
+{
+	return OF_FAILED;
+}
+
+
+// memory functions
+
+
+int
+of_release(void *virtualAddress, int size)
+{
+	return OF_FAILED;
+}
+
+
+void *
+of_claim(void *virtualAddress, int size, int align)
+{
+	return NULL;
+}
+
+
+// misc functions
+
+
+/** tests if the given service is missing
+ */
+
+int
+of_test(const char *service)
+{
+	return OF_FAILED;
+}
+
+
+/** Returns the millisecond counter
+ */
+
+int
+of_milliseconds(void)
+{
+	return OF_FAILED;
+}
+
+
+void
+of_exit(void)
+{
+}
+