This change adds PPC support to libpayload, and hooks it up in the build

process.
The PPC support is still stubbed, with commented out x86 code as guide
line for an implementor.

Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4293 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

1 files changed, 70 insertions, 0 deletions

diff --git a/payloads/libpayload/arch/powerpc/main.c b/payloads/libpayload/arch/powerpc/main.c
new file mode 100644
index 0000000000..48d6ef5495
--- /dev/null
+++ b/payloads/libpayload/arch/powerpc/main.c
@@ -0,0 +1,70 @@
+/*
+ * This file is part of the libpayload project.
+ *
+ * Copyright (C) 2008 Advanced Micro Devices, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <libpayload.h>
+
+unsigned long loader_eax;  /**< The value of EAX passed from the loader */
+unsigned long loader_ebx;  /**< The value of EBX passed from the loader */
+
+unsigned int main_argc;    /**< The argc value to pass to main() */
+
+/** The argv value to pass to main() */
+char *main_argv[MAX_ARGC_COUNT];
+
+/**
+ * This is our C entry function - set up the system
+ * and jump into the payload entry point.
+ */
+void start_main(void)
+{
+	extern int main(int argc, char **argv);
+
+	/* Set up the consoles. */
+	console_init();
+
+	/* Gather system information. */
+	lib_get_sysinfo();
+
+	/*
+	 * Any other system init that has to happen before the
+	 * user gets control goes here.
+	 */
+
+	/*
+	 * Go to the entry point.
+	 * In the future we may care about the return value.
+	 */
+
+	(void) main(main_argc, (main_argc != 0) ? main_argv : NULL);
+
+	/*
+	 * Returning here will go to the _leave function to return
+	 * us to the original context.
+	 */
+}