Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / board / w7o / fsboot.c

diff --git a/qemu/roms/u-boot/board/w7o/fsboot.c b/qemu/roms/u-boot/board/w7o/fsboot.c
new file mode 100644 (file)
index 0000000..25fbb55
--- /dev/null
+++ b/qemu/roms/u-boot/board/w7o/fsboot.c
@@ -0,0 +1,74 @@
+/*
+ * (C) Copyright 2001
+ * Wave 7 Optics, Inc.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <config.h>
+#include <command.h>
+
+/*
+ * FIXME: Add code to test image and it's header.
+ */
+extern int valid_elf_image (unsigned long addr);
+
+static int
+image_check(ulong addr)
+{
+    return valid_elf_image(addr);
+}
+
+void
+init_fsboot(void)
+{
+    char  *envp;
+    ulong loadaddr;
+    ulong testaddr;
+    ulong alt_loadaddr;
+    char buf[9];
+
+    /*
+     * Get test image address
+     */
+    if ((envp = getenv("testaddr")) != NULL)
+       testaddr = simple_strtoul(envp, NULL, 16);
+    else
+       testaddr = -1;
+
+    /*
+     * Are we going to test boot and image?
+     */
+    if ((testaddr != -1) && image_check(testaddr)) {
+
+       /* Set alt_loadaddr */
+       alt_loadaddr = testaddr;
+       sprintf(buf, "%lX", alt_loadaddr);
+       setenv("alt_loadaddr", buf);
+
+       /* Clear test_addr */
+       setenv("testaddr", NULL);
+
+       /*
+        * Save current environment with alt_loadaddr,
+        * and cleared testaddr.
+        */
+       saveenv();
+
+       /*
+        * Setup temporary loadaddr to alt_loadaddr
+        * XXX - DO NOT SAVE ENVIRONMENT!
+        */
+       loadaddr = alt_loadaddr;
+       sprintf(buf, "%lX", loadaddr);
+       setenv("loadaddr", buf);
+
+    } else { /* Normal boot */
+       setenv("alt_loadaddr", NULL);           /* Clear alt_loadaddr */
+       setenv("testaddr", NULL);               /* Clear testaddr */
+       saveenv();
+    }
+
+    return;
+}