powerpc: remove 4xx support

There was for long time no activity in the 4xx area.
We need to go further and convert to Kconfig, but it
turned out, nobody is interested anymore in 4xx,
so remove it.

Signed-off-by: Heiko Schocher <hs@denx.de>

README

@@ -833,8 +833,6 @@ The following options need to be configured:
 		CONFIG_SCSI		* SCSI Support
 		CONFIG_CMD_SDRAM	* print SDRAM configuration information
 					  (requires CONFIG_CMD_I2C)
-		CONFIG_CMD_SETGETDCR	  Support for DCR Register access
-					  (4xx only)
 		CONFIG_CMD_SF		* Read/write/erase SPI NOR flash
 		CONFIG_CMD_SOFTSWITCH	* Soft switch setting command for BF60x
 		CONFIG_CMD_SOURCE	  "source" command Support
@@ -3951,7 +3949,6 @@ Low Level (hardware related) configuration options:
 		sequences.
 
 		U-Boot uses the following memory types:
-		- PPC4xx:  data cache
 
 - CONFIG_SYS_GBL_DATA_OFFSET:
 
@@ -3990,10 +3987,6 @@ Low Level (hardware related) configuration options:
   CONFIG_SYS_OR3_PRELIM, CONFIG_SYS_BR3_PRELIM:
 		Memory Controller Definitions: BR2/3 and OR2/3 (SDRAM)
 
-- CONFIG_PCI_DISABLE_PCIE:
-		Disable PCI-Express on systems where it is supported but not
-		required.
-
 - CONFIG_PCI_ENUM_ONLY
 		Only scan through and get the devices on the buses.
 		Don't do any setup work, presumably because someone or

arch/powerpc/Kconfig

@@ -29,16 +29,10 @@ config MPC86xx
 	select SYS_FSL_DDR
 	select SYS_FSL_DDR_BE
 
-config 4xx
-	bool "PPC4xx"
-	select CREATE_ARCH_SYMLINK
-	imply CMD_IRQ
-
 endchoice
 
 source "arch/powerpc/cpu/mpc83xx/Kconfig"
 source "arch/powerpc/cpu/mpc85xx/Kconfig"
 source "arch/powerpc/cpu/mpc86xx/Kconfig"
-source "arch/powerpc/cpu/ppc4xx/Kconfig"
 
 endmenu

arch/powerpc/Makefile

@@ -3,7 +3,6 @@
 #
 
 head-y := arch/powerpc/cpu/$(CPU)/start.o
-head-$(CONFIG_4xx) += arch/powerpc/cpu/ppc4xx/resetvec.o
 head-$(CONFIG_MPC85xx) += arch/powerpc/cpu/mpc85xx/resetvec.o
 
 libs-y += arch/powerpc/cpu/$(CPU)/