1 files changed, 102 insertions, 0 deletions
diff --git a/target/linux/brcm63xx/files/arch/mips/bcm963xx/info.c b/target/linux/brcm63xx/files/arch/mips/bcm963xx/info.c
new file mode 100644
index 0000000000..d50b601e22
--- /dev/null
+++ b/target/linux/brcm63xx/files/arch/mips/bcm963xx/info.c
@@ -0,0 +1,102 @@
+/*
+ * $Id$
+ *
+ * Copyright (C) 2007 OpenWrt.org
+ * Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org>
+ * Copyright (C) 2007 Florian Fainelli <florian@openwrt.org>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/types.h>
+#include <linux/autoconf.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+
+#include <asm/bootinfo.h>
+#include <asm/addrspace.h>
+#include <asm/string.h>
+#include <asm/mach-bcm963xx/bootloaders.h>
+
+static char *boot_loader_names[BOOT_LOADER_LAST+1] = {
+        [BOOT_LOADER_UNKNOWN]   = "Unknown",
+        [BOOT_LOADER_CFE]       = "CFE",
+        [BOOT_LOADER_REDBOOT]	= "RedBoot",
+	[BOOT_LOADER_CFE2]	= "CFEv2"
+};
+
+/* boot loaders specific definitions */
+#define CFE_EPTSEAL	0x43464531 /* CFE1 is the magic number to recognize CFE from other bootloaders */
+
+int boot_loader_type;
+/*
+ * Boot loader detection routines
+ */
+static int __init detect_cfe(void)
+{
+	/*
+	 * This method only works, when we are booted directly from the CFE.
+	 */
+	uint32_t cfe_handle = (uint32_t) fw_arg0;
+	uint32_t cfe_a1_val = (uint32_t) fw_arg1;
+	uint32_t cfe_entry = (uint32_t) fw_arg2;
+	uint32_t cfe_seal = (uint32_t) fw_arg3;
+
+	/* Check for CFE by finding the CFE magic number */
+	if (cfe_seal != CFE_EPTSEAL)
+		/* We are not booted from CFE */
+		return 0;
+
+	/* cfe_a1_val must be 0, because only one CPU present in the ADM5120 SoC */
+	if (cfe_a1_val != 0)
+		return 0;
+
+	/* The cfe_handle, and the cfe_entry must be kernel mode addresses */
+	if ((cfe_handle < KSEG0) || (cfe_entry < KSEG0))
+		return 0;
+
+	return 1;
+}
+
+static int __init detect_redboot(void)
+{
+	/* On Inventel Livebox, the boot loader is passed as a command line argument, check for it */
+	if (!strncmp(arcs_cmdline, "boot_loader=RedBoot", 19))
+		return 1;
+	return 0;
+}
+
+void __init detect_bootloader(void)
+{
+	if (detect_cfe()) {
+		boot_loader_type = BOOT_LOADER_CFE;
+	}
+
+	if (detect_redboot()) {
+		boot_loader_type = BOOT_LOADER_REDBOOT;
+	}
+	else {
+		/* Some devices are using CFE, but it is not detected as is */
+		boot_loader_type = BOOT_LOADER_CFE2;
+	}
+	printk("Boot loader is : %s\n", boot_loader_names[boot_loader_type]);
+}
+
+void __init detect_board(void)
+{
+	switch (boot_loader_type)
+	{
+		case BOOT_LOADER_CFE:
+			break;
+		case BOOT_LOADER_REDBOOT:
+			break;
+		default:
+			break;
+	}
+}
+
+EXPORT_SYMBOL(boot_loader_type);