From: roger <cz@rock-chips.com>
Date: Thu, 4 Sep 2014 05:57:10 +0000 (+0800)
Subject: ethernet:gmac: read MAC from NAND IDB first
X-Git-Tag: firefly_0821_release~4756
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=430b03635dc1d8915e31faff7ff363641fe3c08a;p=firefly-linux-kernel-4.4.55.git

ethernet:gmac: read MAC from NAND IDB first
---

diff --git a/drivers/net/ethernet/rockchip/Makefile b/drivers/net/ethernet/rockchip/Makefile
index 8d8d89eff1ad..55fe6e177e64 100755
--- a/drivers/net/ethernet/rockchip/Makefile
+++ b/drivers/net/ethernet/rockchip/Makefile
@@ -1,6 +1,6 @@
 #
 # Makefile for the rockchip device drivers.
 #
-
+obj-$(CONFIG_NET_VENDOR_ROCKCHIP) += eth_mac.o
 obj-$(CONFIG_RK_VMAC_ETH) += vmac/
 obj-$(CONFIG_RK_GMAC_ETH) += gmac/
diff --git a/drivers/net/ethernet/rockchip/eth_mac.c b/drivers/net/ethernet/rockchip/eth_mac.c
new file mode 100755
index 000000000000..296c828f5d88
--- /dev/null
+++ b/drivers/net/ethernet/rockchip/eth_mac.c
@@ -0,0 +1,196 @@
+/*
+ * Copyright (C) 2010 ROCKCHIP, Inc.
+ * Author: roger_chen <cz@rock-chips.com>
+ *
+ * This program is the virtual flash device 
+ * used to store bd_addr or MAC
+ *
+ */
+
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/miscdevice.h>
+#include <linux/fs.h>
+#include <linux/platform_device.h>
+#include <asm/uaccess.h>
+#include <asm/io.h>
+#include <linux/fs.h>
+#include <linux/slab.h>
+#include "eth_mac.h"
+
+#if 1
+#define DBG(x...)   printk("eth_mac:" x)
+#else
+#define DBG(x...)
+#endif
+
+#define VERSION "0.1"
+
+#define WLAN_MAC_FILE "/data/misc/wifi/wlan_mac"
+
+extern char GetSNSectorInfo(char * pbuf);
+
+int eth_mac_read_from_IDB(u8 *mac)
+{
+	int i;
+	char *tempBuf = kmalloc(512, GFP_KERNEL);
+
+	if(mac == NULL)
+		return -EFAULT;
+
+	GetSNSectorInfo(tempBuf);
+#if 0
+	for (i = 0; i < 512; i++) {
+		printk("%02x, ", tempBuf[i]);
+		if(((i+1)%16) == 0) printk("\n");
+	}
+#endif
+	for (i = 506; i <= 511; i++) {
+		mac[i-506] = tempBuf[i];
+	}
+
+	kfree(tempBuf);
+
+	return 0;
+}
+
+int eth_mac_idb(u8 *eth_mac)
+{
+	int i;
+	int err = 0;
+	memset(eth_mac, 0, 6);
+	err = eth_mac_read_from_IDB(eth_mac);
+	if (err)
+		return -1;
+	printk("Read the Ethernet MAC address from IDB:");
+	for (i = 0; i < 5; i++)
+		printk("%2.2x:", eth_mac[i]);
+	printk("%2.2x\n", eth_mac[i]);
+
+	return 0;
+}
+
+#if 0
+/**
+*大写转小写
+*
+*/
+static void   to_lower(char   *str) 
+{ 
+	int   i=0; 
+	while(str[i]!=0) 
+	{ 
+		if((str[i] >= 'A')&&(str[i] <= 'Z')) 
+			str[i]+=32; 
+		i++; 
+	} 
+} 
+
+/**
+  *字符串格式转为mac 格式.
+  *
+  *
+  */
+static void  trans( char *src ,int * k) 
+{
+    char c;
+    int i;
+    int temp;
+    int temp2;
+
+    if( (src == NULL) ||(strlen(src) <16 ) ) // 参数检查
+    {
+      printk( "Arg Error\n" );
+      return ;
+    }
+
+    for( i = 0; i < 6; i++ )
+    {
+      temp = 0;
+      temp2 = 0;
+      c = *src;
+      if( c == ':' ){
+	  	src++;
+		c = *src;
+      	}
+      if( c >= 'a' && c <= 'f' )          // 两个字符中的第一个 比如 "0f" ,则表示是字符 '0'
+         temp = ( c - 'a' ) + 10; 
+      else
+         temp = ( c - '0' ) ;
+      src++;
+      
+      c = *src;
+      if( i == 5){                         //wifi mac 末尾加1
+	if(c =='f'){
+	   c = '0';
+	} if (c == '9'){
+	   c = 'a';
+	}else{
+	   c = c + 1;
+	}
+      }
+      if( c >= 'a' && c <= 'f' )             // 两个字符中的第二个,如 "f8" ,那么表示字符 '8'
+         temp2 = ( c - 'a' ) + 10;
+      else
+         temp2 = ( c - '0' ) ;
+
+      temp = temp * 16;
+      temp += temp2;
+      src++;
+      *(k+i) = temp;
+
+    }
+
+}
+
+int eth_mac_wifi(u8 *eth_mac){
+	int i;
+	struct  file *file = NULL;
+	char wifi_mac[32];
+	mm_segment_t old_fs;
+	ssize_t ret;
+	int maci[6];
+
+	memset(eth_mac, 0, 6);
+	
+	file = filp_open(WLAN_MAC_FILE, O_RDWR,0);
+	if (IS_ERR(file))
+	{
+		printk("open %s failed.", WLAN_MAC_FILE);
+		return -ENOENT;
+	} 
+
+	old_fs = get_fs();
+    	set_fs(get_ds());
+    
+    	file->f_op->llseek(file,0,0);
+    	ret = file->f_op->read(file, wifi_mac, 32, &file->f_pos);
+    
+    	set_fs(old_fs);
+    
+   	 if(ret > 0){
+        	//printk("mac read from %s: %s\n", WLAN_MAC_FILE,wifi_mac);
+
+		to_lower(wifi_mac);
+		trans(wifi_mac,maci);
+		for (i = 0;i< 6;i++){
+			eth_mac[i] = maci[i];
+		}
+		
+   	 }
+    	 else if(ret == 0)
+       	printk("read nothing from %s........\n",WLAN_MAC_FILE);
+    	 else 
+        {
+            	printk("read wifi mac error\n");
+           	 return -ENOENT;
+        }
+
+	filp_close(file,NULL);
+	return 0;
+	
+}
+
+#endif
diff --git a/drivers/net/ethernet/rockchip/eth_mac.h b/drivers/net/ethernet/rockchip/eth_mac.h
new file mode 100755
index 000000000000..03db62788352
--- /dev/null
+++ b/drivers/net/ethernet/rockchip/eth_mac.h
@@ -0,0 +1,17 @@
+#ifndef _ETH_MAC_H_
+#define _ETH_MAC_H_
+/*
+ *  eth_mac/eth_mac.h
+ *
+ *  Copyright (C) 2001 Russell King.
+ *
+ * This file is placed under the LGPL.
+ *
+ *
+ * 
+ */
+//int eth_mac_read_from_IDB(u8 *mac)
+
+int eth_mac_idb(u8 *eth_mac);
+int eth_mac_wifi(u8 *eth_mac);
+#endif /* _ETH_MAC_H_ */
diff --git a/drivers/net/ethernet/rockchip/gmac/stmmac_main.c b/drivers/net/ethernet/rockchip/gmac/stmmac_main.c
index d2f18b0cba82..6ce9fee67db2 100755
--- a/drivers/net/ethernet/rockchip/gmac/stmmac_main.c
+++ b/drivers/net/ethernet/rockchip/gmac/stmmac_main.c
@@ -50,6 +50,7 @@
 #include <linux/net_tstamp.h>
 #include "stmmac_ptp.h"
 #include "stmmac.h"
+#include "../eth_mac.h"
 
 #undef STMMAC_DEBUG
 /*#define STMMAC_DEBUG*/
@@ -1573,6 +1574,8 @@ static void stmmac_check_ether_addr(struct stmmac_priv *priv)
 		priv->hw->mac->get_umac_addr((void __iomem *)
 					     priv->dev->base_addr,
 					     priv->dev->dev_addr, 0);
+		if (!is_valid_ether_addr(priv->dev->dev_addr))
+			eth_mac_idb(priv->dev->dev_addr);
 		if (!is_valid_ether_addr(priv->dev->dev_addr))
 			eth_hw_addr_random(priv->dev);
 	}