cpu/: get mac address from environment

The environment is the canonical storage location of the mac address, so
we're killing off the global data location and moving everything to
querying the env directly.

The cpus that get converted here:
	at91rm9200
	mpc512x
	mpc5xxx
	mpc8260
	mpc8xx
	ppc4xx

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
CC: Ben Warren <biggerbadderben@gmail.com>
CC: John Rigby <jrigby@freescale.com>
CC: Stefan Roese <sr@denx.de>
diff --git a/cpu/arm920t/at91rm9200/ether.c b/cpu/arm920t/at91rm9200/ether.c
index f20e070..b00b948 100644
--- a/cpu/arm920t/at91rm9200/ether.c
+++ b/cpu/arm920t/at91rm9200/ether.c
@@ -155,6 +155,7 @@
 {
 	int ret;
 	int i;
+	uchar enetaddr[6];
 
 	p_mac = AT91C_BASE_EMAC;
 
@@ -190,9 +191,10 @@
 	rbfdt[RBF_FRAMEMAX - 1].addr |= RBF_WRAP;
 	rbfp = &rbfdt[0];
 
-	p_mac->EMAC_SA2L = (bd->bi_enetaddr[3] << 24) | (bd->bi_enetaddr[2] << 16)
-			 | (bd->bi_enetaddr[1] <<  8) | (bd->bi_enetaddr[0]);
-	p_mac->EMAC_SA2H = (bd->bi_enetaddr[5] <<  8) | (bd->bi_enetaddr[4]);
+	eth_getenv_enetaddr("ethaddr", enetaddr);
+	p_mac->EMAC_SA2L = (enetaddr[3] << 24) | (enetaddr[2] << 16)
+			 | (enetaddr[1] <<  8) | (enetaddr[0]);
+	p_mac->EMAC_SA2H = (enetaddr[5] <<  8) | (enetaddr[4]);
 
 	p_mac->EMAC_RBQP = (long) (&rbfdt[0]);
 	p_mac->EMAC_RSR &= ~(AT91C_EMAC_RSR_OVR | AT91C_EMAC_REC | AT91C_EMAC_BNA);
diff --git a/cpu/mpc512x/cpu.c b/cpu/mpc512x/cpu.c
index b9069b0..be532af 100644
--- a/cpu/mpc512x/cpu.c
+++ b/cpu/mpc512x/cpu.c
@@ -148,15 +148,17 @@
 	 * avoid fixing up by path because that
 	 * produces scary error messages
 	 */
+	uchar enetaddr[6];
 
 	/*
 	 * old device trees have ethernet nodes with
 	 * device_type = "network"
 	 */
+	eth_getenv_enetaddr("ethaddr", enetaddr);
 	do_fixup_by_prop(blob, "device_type", "network", 8,
-		"local-mac-address", bd->bi_enetaddr, 6, 0);
+		"local-mac-address", enetaddr, 6, 0);
 	do_fixup_by_prop(blob, "device_type", "network", 8,
-		"address", bd->bi_enetaddr, 6, 0);
+		"address", enetaddr, 6, 0);
 	/*
 	 * old device trees have soc nodes with
 	 * device_type = "soc"
diff --git a/cpu/mpc5xxx/cpu.c b/cpu/mpc5xxx/cpu.c
index 9c6ab76..ad5ef8e 100644
--- a/cpu/mpc5xxx/cpu.c
+++ b/cpu/mpc5xxx/cpu.c
@@ -121,6 +121,7 @@
 	int div = in_8((void*)CONFIG_SYS_MBAR + 0x204) & 0x0020 ? 8 : 4;
 	char * cpu_path = "/cpus/" OF_CPU;
 #ifdef CONFIG_MPC5xxx_FEC
+	uchar *enetaddr[6];
 	char * eth_path = "/" OF_SOC "/ethernet@3000";
 #endif
 
@@ -131,8 +132,9 @@
 	do_fixup_by_path_u32(blob, "/" OF_SOC, "system-frequency",
 				bd->bi_busfreq*div, 1);
 #ifdef CONFIG_MPC5xxx_FEC
-	do_fixup_by_path(blob, eth_path, "mac-address", bd->bi_enetaddr, 6, 0);
-	do_fixup_by_path(blob, eth_path, "local-mac-address", bd->bi_enetaddr, 6, 0);
+	eth_getenv_enetaddr("ethaddr", enetaddr);
+	do_fixup_by_path(blob, eth_path, "mac-address", enetaddr, 6, 0);
+	do_fixup_by_path(blob, eth_path, "local-mac-address", enetaddr, 6, 0);
 #endif
 }
 #endif
diff --git a/cpu/mpc8260/ether_fcc.c b/cpu/mpc8260/ether_fcc.c
index 3ab57eb..5ac02a0 100644
--- a/cpu/mpc8260/ether_fcc.c
+++ b/cpu/mpc8260/ether_fcc.c
@@ -654,7 +654,7 @@
 
 	puts ("FCC Ethernet External loopback test\n");
 
-	memcpy (NetOurEther, gd->bd->bi_enetaddr, 6);
+	eth_getenv_enetaddr("ethaddr", NetOurEther);
 
 	/*
 	 * global initialisations for all FCC channels
@@ -841,7 +841,7 @@
 		 * So, far we have only been given one Ethernet address. We use
 		 * the same address for all channels
 		 */
-#define ea gd->bd->bi_enetaddr
+#define ea NetOurEther
 		fpp->fen_paddrh = (ea[5] << 8) + ea[4];
 		fpp->fen_paddrm = (ea[3] << 8) + ea[2];
 		fpp->fen_paddrl = (ea[1] << 8) + ea[0];
diff --git a/cpu/mpc8260/ether_scc.c b/cpu/mpc8260/ether_scc.c
index 3671ef1..432111d 100644
--- a/cpu/mpc8260/ether_scc.c
+++ b/cpu/mpc8260/ether_scc.c
@@ -199,6 +199,7 @@
     volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
     scc_enet_t *pram_ptr;
     uint dpaddr;
+    uchar ea[6];
 
     rxIdx = 0;
     txIdx = 0;
@@ -261,11 +262,10 @@
     pram_ptr->sen_gaddr3 = 0x0;   /* Group Address Filter 3 (unused) */
     pram_ptr->sen_gaddr4 = 0x0;   /* Group Address Filter 4 (unused) */
 
-#  define ea bis->bi_enetaddr
+    eth_getenv_enetaddr("ethaddr", ea);
     pram_ptr->sen_paddrh = (ea[5] << 8) + ea[4];
     pram_ptr->sen_paddrm = (ea[3] << 8) + ea[2];
     pram_ptr->sen_paddrl = (ea[1] << 8) + ea[0];
-#  undef ea
 
     pram_ptr->sen_pper   = 0x0;   /* Persistence (unused) */
 
diff --git a/cpu/ppc4xx/cpu_init.c b/cpu/ppc4xx/cpu_init.c
index b5d81f2..a8f589a 100644
--- a/cpu/ppc4xx/cpu_init.c
+++ b/cpu/ppc4xx/cpu_init.c
@@ -324,6 +324,7 @@
 #if defined(CONFIG_405GP)  || defined(CONFIG_405EP)
 	bd_t *bd = gd->bd;
 	unsigned long reg;
+	uchar enetaddr[6];
 #if defined(CONFIG_405GP)
 	uint pvr = get_pvr();
 #endif
@@ -332,19 +333,20 @@
 	 * Write Ethernetaddress into on-chip register
 	 */
 	reg = 0x00000000;
-	reg |= bd->bi_enetaddr[0];           /* set high address */
+	eth_getenv_enetaddr("ethaddr", enetaddr);
+	reg |= enetaddr[0];           /* set high address */
 	reg = reg << 8;
-	reg |= bd->bi_enetaddr[1];
+	reg |= enetaddr[1];
 	out32 (EMAC_IAH, reg);
 
 	reg = 0x00000000;
-	reg |= bd->bi_enetaddr[2];           /* set low address  */
+	reg |= enetaddr[2];           /* set low address  */
 	reg = reg << 8;
-	reg |= bd->bi_enetaddr[3];
+	reg |= enetaddr[3];
 	reg = reg << 8;
-	reg |= bd->bi_enetaddr[4];
+	reg |= enetaddr[4];
 	reg = reg << 8;
-	reg |= bd->bi_enetaddr[5];
+	reg |= enetaddr[5];
 	out32 (EMAC_IAL, reg);
 
 #if defined(CONFIG_405GP)
diff --git a/post/cpu/mpc8xx/ether.c b/post/cpu/mpc8xx/ether.c
index 5622cb7..fe6c39e 100644
--- a/post/cpu/mpc8xx/ether.c
+++ b/post/cpu/mpc8xx/ether.c
@@ -110,6 +110,7 @@
 static void scc_init (int scc_index)
 {
 	bd_t *bd = gd->bd;
+	uchar ea[6];
 
 	static int proff[] =
 			{ PROFF_SCC1, PROFF_SCC2, PROFF_SCC3, PROFF_SCC4 };
@@ -296,11 +297,10 @@
 	pram_ptr->sen_gaddr3 = 0x0;	/* Group Address Filter 3 (unused) */
 	pram_ptr->sen_gaddr4 = 0x0;	/* Group Address Filter 4 (unused) */
 
-#define ea bd->bi_enetaddr
+	eth_getenv_enetaddr("ethaddr", ea);
 	pram_ptr->sen_paddrh = (ea[5] << 8) + ea[4];
 	pram_ptr->sen_paddrm = (ea[3] << 8) + ea[2];
 	pram_ptr->sen_paddrl = (ea[1] << 8) + ea[0];
-#undef ea
 
 	pram_ptr->sen_pper = 0x0;	/* Persistence (unused) */
 	pram_ptr->sen_iaddr1 = 0x0;	/* Individual Address Filter 1 (unused) */