Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / arch / blackfin / cpu / os_log.c

diff --git a/qemu/roms/u-boot/arch/blackfin/cpu/os_log.c b/qemu/roms/u-boot/arch/blackfin/cpu/os_log.c
new file mode 100644 (file)
index 0000000..2092d9e
--- /dev/null
+++ b/qemu/roms/u-boot/arch/blackfin/cpu/os_log.c
@@ -0,0 +1,30 @@
+/*
+ * functions for handling OS log buffer
+ *
+ * Copyright (c) 2009 Analog Devices Inc.
+ *
+ * Licensed under the 2-clause BSD.
+ */
+
+#include <common.h>
+
+#define OS_LOG_MAGIC       0xDEADBEEF
+#define OS_LOG_MAGIC_ADDR  ((unsigned long *)0x4f0)
+#define OS_LOG_PTR_ADDR    ((char **)0x4f4)
+
+int bfin_os_log_check(void)
+{
+       if (*OS_LOG_MAGIC_ADDR != OS_LOG_MAGIC)
+               return 0;
+       *OS_LOG_MAGIC_ADDR = 0;
+       return 1;
+}
+
+void bfin_os_log_dump(void)
+{
+       char *log = *OS_LOG_PTR_ADDR;
+       while (*log) {
+               puts(log);
+               log += strlen(log) + 1;
+       }
+}