[POWERPC] Start removing linux,network-index in favour of aliases

This patch alters the bootwrapper for a number of machines (roubhly
all 4xx based cuboot or treeboot platforms) to use aliases instead of
the linux,network-index hack to work out which MAC address to attach
to which ethernet device node.

The now obsolete linux,network-index properties are removed from the
corresponding device trees.  This won't break backwards compatiblity,
because in cases where this fixup code is relevant, the device tree is
part of the kernel image.

The references to linux,network-index are removed from
booting-without-of.txt.  Not only is it now deprecated, but as a hack
applicable only when the device tree blob and fixup code were in the
same image, this property never belonged in booting-without-of.txt
which describes the interface between the kernel and firmware or
bootloaders which produce a device tree.  By the time the device tree
reaches the kernel, all the MAC addresses must be fully filled in.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

14 files changed, 12 insertions, 21 deletions

diff --git a/arch/powerpc/boot/bamboo.c b/arch/powerpc/boot/bamboo.c
index 54b33f1500e..b82cacbc60d 100644
--- a/arch/powerpc/boot/bamboo.c
+++ b/arch/powerpc/boot/bamboo.c
@@ -33,7 +33,8 @@ static void bamboo_fixups(void)
 	ibm440ep_fixup_clocks(sysclk, 11059200, 25000000);
 	ibm4xx_sdram_fixup_memsize();
 	ibm4xx_quiesce_eth((u32 *)0xef600e00, (u32 *)0xef600f00);
-	dt_fixup_mac_addresses(bamboo_mac0, bamboo_mac1);
+	dt_fixup_mac_address_by_alias("ethernet0", bamboo_mac0);
+	dt_fixup_mac_address_by_alias("ethernet1", bamboo_mac1);
 }
 
 void bamboo_init(void *mac0, void *mac1)
diff --git a/arch/powerpc/boot/cuboot-rainier.c b/arch/powerpc/boot/cuboot-rainier.c
index cf452b66dce..0a3fddee54d 100644
--- a/arch/powerpc/boot/cuboot-rainier.c
+++ b/arch/powerpc/boot/cuboot-rainier.c
@@ -42,7 +42,8 @@ static void rainier_fixups(void)
 	ibm440ep_fixup_clocks(sysclk, 11059200, 50000000);
 	ibm4xx_fixup_ebc_ranges("/plb/opb/ebc");
 	ibm4xx_denali_fixup_memsize();
-	dt_fixup_mac_addresses(&bd.bi_enetaddr, &bd.bi_enet1addr);
+	dt_fixup_mac_address_by_alias("ethernet0", bd.bi_enetaddr);
+	dt_fixup_mac_address_by_alias("ethernet1", bd.bi_enet1addr);
 }
 
 void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
diff --git a/arch/powerpc/boot/cuboot-sequoia.c b/arch/powerpc/boot/cuboot-sequoia.c
index f555575a44d..caf8f2e842e 100644
--- a/arch/powerpc/boot/cuboot-sequoia.c
+++ b/arch/powerpc/boot/cuboot-sequoia.c
@@ -42,7 +42,8 @@ static void sequoia_fixups(void)
 	ibm440ep_fixup_clocks(sysclk, 11059200, 50000000);
 	ibm4xx_fixup_ebc_ranges("/plb/opb/ebc");
 	ibm4xx_denali_fixup_memsize();
-	dt_fixup_mac_addresses(&bd.bi_enetaddr, &bd.bi_enet1addr);
+	dt_fixup_mac_address_by_alias("ethernet0", bd.bi_enetaddr);
+	dt_fixup_mac_address_by_alias("ethernet1", bd.bi_enet1addr);
 }
 
 void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
diff --git a/arch/powerpc/boot/cuboot-taishan.c b/arch/powerpc/boot/cuboot-taishan.c
index b55b80467ee..9bc906a754d 100644
--- a/arch/powerpc/boot/cuboot-taishan.c
+++ b/arch/powerpc/boot/cuboot-taishan.c
@@ -40,7 +40,8 @@ static void taishan_fixups(void)
 
 	ibm4xx_sdram_fixup_memsize();
 
-	dt_fixup_mac_addresses(bd.bi_enetaddr, bd.bi_enet1addr);
+	dt_fixup_mac_address_by_alias("ethernet0", bd.bi_enetaddr);
+	dt_fixup_mac_address_by_alias("ethernet1", bd.bi_enet1addr);
 
 	ibm4xx_fixup_ebc_ranges("/plb/opb/ebc");
 }
diff --git a/arch/powerpc/boot/cuboot-warp.c b/arch/powerpc/boot/cuboot-warp.c
index 3db93e85e9e..eb108a87749 100644
--- a/arch/powerpc/boot/cuboot-warp.c
+++ b/arch/powerpc/boot/cuboot-warp.c
@@ -24,7 +24,7 @@ static void warp_fixups(void)
 	ibm440ep_fixup_clocks(sysclk, 11059200, 50000000);
 	ibm4xx_sdram_fixup_memsize();
 	ibm4xx_fixup_ebc_ranges("/plb/opb/ebc");
-	dt_fixup_mac_addresses(&bd.bi_enetaddr);
+	dt_fixup_mac_address_by_alias("ethernet0", bd.bi_enetaddr);
 }
 
 
diff --git a/arch/powerpc/boot/dts/bamboo.dts b/arch/powerpc/boot/dts/bamboo.dts
index 7dc37c9a744..ba2521bdaab 100644
--- a/arch/powerpc/boot/dts/bamboo.dts
+++ b/arch/powerpc/boot/dts/bamboo.dts
@@ -204,7 +204,6 @@
 			};
 
 			EMAC0: ethernet@ef600e00 {
-				linux,network-index = <0>;
 				device_type = "network";
 				compatible = "ibm,emac-440ep", "ibm,emac-440gp", "ibm,emac";
 				interrupt-parent = <&UIC1>;
@@ -225,7 +224,6 @@
 			};
 
 			EMAC1: ethernet@ef600f00 {
-				linux,network-index = <1>;
 				device_type = "network";
 				compatible = "ibm,emac-440ep", "ibm,emac-440gp", "ibm,emac";
 				interrupt-parent = <&UIC1>;
diff --git a/arch/powerpc/boot/dts/ebony.dts b/arch/powerpc/boot/dts/ebony.dts
index 0b000cb7ed8..5079dc890e0 100644
--- a/arch/powerpc/boot/dts/ebony.dts
+++ b/arch/powerpc/boot/dts/ebony.dts
@@ -241,7 +241,6 @@
 			};
 
 			EMAC0: ethernet@40000800 {
-				linux,network-index = <0>;
 				device_type = "network";
 				compatible = "ibm,emac-440gp", "ibm,emac";
 				interrupt-parent = <&UIC1>;
@@ -261,7 +260,6 @@
 				zmii-channel = <0>;
 			};
 			EMAC1: ethernet@40000900 {
-				linux,network-index = <1>;
 				device_type = "network";
 				compatible = "ibm,emac-440gp", "ibm,emac";
 				interrupt-parent = <&UIC1>;
diff --git a/arch/powerpc/boot/dts/rainier.dts b/arch/powerpc/boot/dts/rainier.dts
index f947c75a2e9..9f6f58b2e07 100644
--- a/arch/powerpc/boot/dts/rainier.dts
+++ b/arch/powerpc/boot/dts/rainier.dts
@@ -254,7 +254,6 @@
 			};
 
 			EMAC0: ethernet@ef600e00 {
-				linux,network-index = <0>;
 				device_type = "network";
 				compatible = "ibm,emac-440grx", "ibm,emac-440epx", "ibm,emac4";
 				interrupt-parent = <&EMAC0>;
@@ -284,7 +283,6 @@
 			};
 
 			EMAC1: ethernet@ef600f00 {
-				linux,network-index = <1>;
 				device_type = "network";
 				compatible = "ibm,emac-440grx", "ibm,emac-440epx", "ibm,emac4";
 				interrupt-parent = <&EMAC1>;
diff --git a/arch/powerpc/boot/dts/sequoia.dts b/arch/powerpc/boot/dts/sequoia.dts
index 8db9515d7dc..675026bf1fb 100644
--- a/arch/powerpc/boot/dts/sequoia.dts
+++ b/arch/powerpc/boot/dts/sequoia.dts
@@ -269,7 +269,6 @@
 			};
 
 			EMAC0: ethernet@ef600e00 {
-				linux,network-index = <0>;
 				device_type = "network";
 				compatible = "ibm,emac-440epx", "ibm,emac4";
 				interrupt-parent = <&EMAC0>;
@@ -299,7 +298,6 @@
 			};
 
 			EMAC1: ethernet@ef600f00 {
-				linux,network-index = <1>;
 				device_type = "network";
 				compatible = "ibm,emac-440epx", "ibm,emac4";
 				interrupt-parent = <&EMAC1>;
diff --git a/arch/powerpc/boot/dts/taishan.dts b/arch/powerpc/boot/dts/taishan.dts
index 8278068c802..466c3f35ce1 100644
--- a/arch/powerpc/boot/dts/taishan.dts
+++ b/arch/powerpc/boot/dts/taishan.dts
@@ -235,7 +235,6 @@
 
 			EMAC0: ethernet@40000800 {
 				unused = <1>;
-				linux,network-index = <2>;
 				device_type = "network";
 				compatible = "ibm,emac-440gx", "ibm,emac4";
 				interrupt-parent = <&UIC1>;
@@ -256,7 +255,6 @@
 			};
 		 	EMAC1: ethernet@40000900 {
 				unused = <1>;
-				linux,network-index = <3>;
 				device_type = "network";
 				compatible = "ibm,emac-440gx", "ibm,emac4";
 				interrupt-parent = <&UIC1>;
@@ -277,7 +275,6 @@
 			};
 
 		 	EMAC2: ethernet@40000c00 {
-				linux,network-index = <0>;
 				device_type = "network";
 				compatible = "ibm,emac-440gx", "ibm,emac4";
 				interrupt-parent = <&UIC2>;
@@ -300,7 +297,6 @@
 			};
 
 		 	EMAC3: ethernet@40000e00 {
-				linux,network-index = <1>;
 				device_type = "network";
 				compatible = "ibm,emac-440gx", "ibm,emac4";
 				interrupt-parent = <&UIC2>;
diff --git a/arch/powerpc/boot/dts/walnut.dts b/arch/powerpc/boot/dts/walnut.dts
index dcc21b0438e..a328607c8f8 100644
--- a/arch/powerpc/boot/dts/walnut.dts
+++ b/arch/powerpc/boot/dts/walnut.dts
@@ -125,7 +125,6 @@
 			};
 
 			EMAC: ethernet@ef600800 {
-				linux,network-index = <0>;
 				device_type = "network";
 				compatible = "ibm,emac-405gp", "ibm,emac";
 				interrupt-parent = <&UIC0>;
diff --git a/arch/powerpc/boot/dts/warp.dts b/arch/powerpc/boot/dts/warp.dts
index dc1499d30f4..b04a52e22bf 100644
--- a/arch/powerpc/boot/dts/warp.dts
+++ b/arch/powerpc/boot/dts/warp.dts
@@ -204,7 +204,6 @@
 			};
 
 			EMAC0: ethernet@ef600e00 {
-				linux,network-index = <0>;
 				device_type = "network";
 				compatible = "ibm,emac-440ep", "ibm,emac-440gp", "ibm,emac";
 				interrupt-parent = <&UIC1>;
diff --git a/arch/powerpc/boot/ebony.c b/arch/powerpc/boot/ebony.c
index f61364c47a7..5532ab3221d 100644
--- a/arch/powerpc/boot/ebony.c
+++ b/arch/powerpc/boot/ebony.c
@@ -75,7 +75,8 @@ static void ebony_fixups(void)
 
 	ibm440gp_fixup_clocks(sysclk, 6 * 1843200);
 	ibm4xx_sdram_fixup_memsize();
-	dt_fixup_mac_addresses(ebony_mac0, ebony_mac1);
+	dt_fixup_mac_address_by_alias("ethernet0", ebony_mac0);
+	dt_fixup_mac_address_by_alias("ethernet1", ebony_mac1);
 	ibm4xx_fixup_ebc_ranges("/plb/opb/ebc");
 	ebony_flashsel_fixup();
 }
diff --git a/arch/powerpc/boot/treeboot-walnut.c b/arch/powerpc/boot/treeboot-walnut.c
index 472e36605a5..097974e59fa 100644
--- a/arch/powerpc/boot/treeboot-walnut.c
+++ b/arch/powerpc/boot/treeboot-walnut.c
@@ -68,7 +68,7 @@ static void walnut_fixups(void)
 	ibm4xx_quiesce_eth((u32 *)0xef600800, NULL);
 	ibm4xx_fixup_ebc_ranges("/plb/ebc");
 	walnut_flashsel_fixup();
-	dt_fixup_mac_addresses((u8 *) WALNUT_OPENBIOS_MAC_OFF);
+	dt_fixup_mac_address_by_alias("ethernet0", (u8 *) WALNUT_OPENBIOS_MAC_OFF);
 }
 
 void platform_init(void)