[POWERPC] 85xx: rework platform Kconfig

* Allow multiple boards to be selected in a single build
* Removed Kconfig option '85xx' which existed only for compat with arch/ppc
* Added a multiplatform 85xx defconfig (mpc85xx_defconfig). This builds
  all 85xx boards except sbc8560 and stx_gp3 since these to boards have
  board specific ifdef in driver code that may break all other boards
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>

arch/powerpc/platforms/85xx/Kconfig

-choice
-	prompt "Machine Type"
+menuconfig MPC85xx
+	bool "Machine Type"
 	depends on PPC_85xx
-	default MPC8540_ADS
+	select PPC_UDBG_16550
+	select PPC_INDIRECT_PCI if PCI
+	select MPIC
+	select FSL_PCI if PCI
+	select SERIAL_8250_SHARE_IRQ if SERIAL_8250
+	default y
+
+if MPC85xx
 
 config MPC8540_ADS
 	bool "Freescale MPC8540 ADS"
@@ -96,24 +103,7 @@ config SBC8560
 	help
 	  This option enables support for the Wind River SBC8560 board
 
-endchoice
+endif # MPC85xx
 
 config TQM85xx
 	bool
-	select MPC85xx
-
-config MPC8540
-	bool
-	select PPC_UDBG_16550
-	select PPC_INDIRECT_PCI
-	default y if MPC8540_ADS || MPC85xx_CDS || SBC8548
-
-config MPC85xx
-	bool
-	select PPC_UDBG_16550
-	select PPC_INDIRECT_PCI if PCI
-	select MPIC
-	select FSL_PCI if PCI
-	select SERIAL_8250_SHARE_IRQ if SERIAL_8250
-	default y if MPC8540_ADS || MPC85xx_CDS || MPC8560_ADS \
-		|| MPC85xx_MDS || MPC85xx_DS || STX_GP3 || SBC8560 || SBC8548

arch/powerpc/platforms/Kconfig.cputype

@@ -29,8 +29,8 @@ config PPC_85xx
 	bool "Freescale 85xx"
 	select E500
 	select FSL_SOC
-	select 85xx
 	select WANT_DEVICE_TREE
+	select MPC85xx
 
 config PPC_8xx
 	bool "Freescale 8xx"
@@ -97,10 +97,6 @@ config 8xx
 config 83xx
 	bool
 
-# this is temp to handle compat with arch=ppc
-config 85xx
-	bool
-
 config E500
 	bool
 

drivers/net/Kconfig

@@ -2301,7 +2301,7 @@ config GELIC_NET
 
 config GIANFAR
 	tristate "Gianfar Ethernet"
-	depends on 85xx || 83xx || PPC_86xx
+	depends on FSL_SOC
 	select PHYLIB
 	select CRC32
 	help