From 716ca530e1c4515d8683c9d5be3d56b301758b66 Mon Sep 17 00:00:00 2001
From: James <>
Date: Wed, 4 Nov 2015 11:49:21 +0000
Subject: trunk-47381

---
 .../files-3.18/arch/mips/adm5120/prom/admboot.c    | 55 ++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 target/linux/adm5120/files-3.18/arch/mips/adm5120/prom/admboot.c

(limited to 'target/linux/adm5120/files-3.18/arch/mips/adm5120/prom/admboot.c')

diff --git a/target/linux/adm5120/files-3.18/arch/mips/adm5120/prom/admboot.c b/target/linux/adm5120/files-3.18/arch/mips/adm5120/prom/admboot.c
new file mode 100644
index 0000000..b655390
--- /dev/null
+++ b/target/linux/adm5120/files-3.18/arch/mips/adm5120/prom/admboot.c
@@ -0,0 +1,55 @@
+/*
+ *  ADMBoot specific prom routines
+ *
+ *  Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+
+#include <asm/addrspace.h>
+#include <asm/byteorder.h>
+
+#include <asm/mach-adm5120/adm5120_defs.h>
+#include <prom/admboot.h>
+#include "prom_read.h"
+
+#define ADMBOOT_MAGIC_MAC_BASE		0x636D676D	/* 'mgmc' */
+#define ADMBOOT_MAGIC_MAC_BASE_BR6104XX 0x31305348	/* 'HS01' */
+
+int __init admboot_get_mac_base(u32 offset, u32 len, u8 *mac)
+{
+	u8 *cfg;
+	int i;
+
+	cfg = (u8 *) KSEG1ADDR(ADM5120_SRAM0_BASE + offset);
+	for (i = 0; i < len; i += 4) {
+		u32 magic;
+
+		magic = prom_read_le32(cfg + i);
+		if (magic == ADMBOOT_MAGIC_MAC_BASE) {
+			int j;
+
+			for (j = 0; j < 6; j++)
+				mac[j] = cfg[i + 4 + j];
+
+			return 0;
+		}
+		if (magic == ADMBOOT_MAGIC_MAC_BASE_BR6104XX) {
+			int j;
+
+			for (j = 0; j < 6; j++)
+				mac[j] = cfg[i + 7 + j];
+
+			return 0;
+		}
+	}
+
+	return -ENXIO;
+}
-- 
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