powerpc: Merge enough to start building in arch/powerpc.

This creates the directory structure under arch/powerpc and a bunch
of Kconfig files.  It does a first-cut merge of arch/powerpc/mm,
arch/powerpc/lib and arch/powerpc/platforms/powermac.  This is enough
to build a 32-bit powermac kernel with ARCH=powerpc.

For now we are getting some unmerged files from arch/ppc/kernel and
arch/ppc/syslib, or arch/ppc64/kernel.  This makes some minor changes
to files in those directories and files outside arch/powerpc.

The boot directory is still not merged.  That's going to be interesting.

Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 280 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/4xx/Kconfig b/arch/powerpc/platforms/4xx/Kconfig
new file mode 100644
index 00000000000..ed39d6a3d22
--- /dev/null
+++ b/arch/powerpc/platforms/4xx/Kconfig
@@ -0,0 +1,280 @@
+config 4xx
+	bool
+	depends on 40x || 44x
+	default y
+
+config WANT_EARLY_SERIAL
+	bool
+	select SERIAL_8250
+	default n
+
+menu "AMCC 4xx options"
+	depends on 4xx
+
+choice
+	prompt "Machine Type"
+	depends on 40x
+	default WALNUT
+
+config BUBINGA
+	bool "Bubinga"
+	select WANT_EARLY_SERIAL
+	help
+	  This option enables support for the IBM 405EP evaluation board.
+
+config CPCI405
+	bool "CPCI405"
+	help
+	  This option enables support for the CPCI405 board.
+
+config EP405
+	bool "EP405/EP405PC"
+	help
+	  This option enables support for the EP405/EP405PC boards.
+
+config REDWOOD_5
+	bool "Redwood-5"
+	help
+	  This option enables support for the IBM STB04 evaluation board.
+
+config REDWOOD_6
+	bool "Redwood-6"
+	help
+	  This option enables support for the IBM STBx25xx evaluation board.
+
+config SYCAMORE
+	bool "Sycamore"
+	help
+	  This option enables support for the IBM PPC405GPr evaluation board.
+
+config WALNUT
+	bool "Walnut"
+	help
+	  This option enables support for the IBM PPC405GP evaluation board.
+
+config XILINX_ML300
+	bool "Xilinx-ML300"
+	help
+	  This option enables support for the Xilinx ML300 evaluation board.
+
+endchoice
+
+choice
+	prompt "Machine Type"
+	depends on 44x
+	default EBONY
+
+config BAMBOO
+	bool "Bamboo"
+	select WANT_EARLY_SERIAL
+	help
+	  This option enables support for the IBM PPC440EP evaluation board.
+
+config EBONY
+	bool "Ebony"
+	select WANT_EARLY_SERIAL
+	help
+	  This option enables support for the IBM PPC440GP evaluation board.
+
+config LUAN
+	bool "Luan"
+	select WANT_EARLY_SERIAL
+	help
+	  This option enables support for the IBM PPC440SP evaluation board.
+
+config OCOTEA
+	bool "Ocotea"
+	select WANT_EARLY_SERIAL
+	help
+	  This option enables support for the IBM PPC440GX evaluation board.
+
+endchoice
+
+config EP405PC
+	bool "EP405PC Support"
+	depends on EP405
+
+
+# It's often necessary to know the specific 4xx processor type.
+# Fortunately, it is impled (so far) from the board type, so we
+# don't need to ask more redundant questions.
+config NP405H
+	bool
+	depends on ASH
+	default y
+
+config 440EP
+	bool
+	depends on BAMBOO
+	select PPC_FPU
+	default y
+
+config 440GP
+	bool
+	depends on EBONY
+	default y
+
+config 440GX
+	bool
+	depends on OCOTEA
+	default y
+
+config 440SP
+	bool
+	depends on LUAN
+	default y
+
+config 440
+	bool
+	depends on 440GP || 440SP || 440EP
+	default y
+
+config 440A
+	bool
+	depends on 440GX
+	default y
+
+config IBM440EP_ERR42
+	bool
+	depends on 440EP
+	default y
+
+# All 405-based cores up until the 405GPR and 405EP have this errata.
+config IBM405_ERR77
+	bool
+	depends on 40x && !403GCX && !405GPR && !405EP
+	default y
+
+# All 40x-based cores, up until the 405GPR and 405EP have this errata.
+config IBM405_ERR51
+	bool
+	depends on 40x && !405GPR && !405EP
+	default y
+
+config BOOKE
+	bool
+	depends on 44x
+	default y
+
+config IBM_OCP
+	bool
+	depends on ASH || BAMBOO || BUBINGA || CPCI405 || EBONY || EP405 || LUAN || OCOTEA || REDWOOD_5 || REDWOOD_6 || SYCAMORE || WALNUT
+	default y
+
+config XILINX_OCP
+	bool
+	depends on XILINX_ML300
+	default y
+
+config IBM_EMAC4
+	bool
+	depends on 440GX || 440SP
+	default y
+
+config BIOS_FIXUP
+	bool
+	depends on BUBINGA || EP405 || SYCAMORE || WALNUT
+	default y
+
+# OAK doesn't exist but wanted to keep this around for any future 403GCX boards
+config 403GCX
+	bool
+	depends OAK
+	default y
+
+config 405EP
+	bool
+	depends on BUBINGA
+	default y
+
+config 405GP
+	bool
+	depends on CPCI405 || EP405 || WALNUT
+	default y
+
+config 405GPR
+	bool
+	depends on SYCAMORE
+	default y
+
+config VIRTEX_II_PRO
+	bool
+	depends on XILINX_ML300
+	default y
+
+config STB03xxx
+	bool
+	depends on REDWOOD_5 || REDWOOD_6
+	default y
+
+config EMBEDDEDBOOT
+	bool
+	depends on EP405 || XILINX_ML300
+	default y
+
+config IBM_OPENBIOS
+	bool
+	depends on ASH || BUBINGA || REDWOOD_5 || REDWOOD_6 || SYCAMORE || WALNUT
+	default y
+
+config PPC4xx_DMA
+	bool "PPC4xx DMA controller support"
+	depends on 4xx
+
+config PPC4xx_EDMA
+	bool
+	depends on !STB03xxx && PPC4xx_DMA
+	default y
+
+config PPC_GEN550
+	bool
+	depends on 4xx
+	default y
+
+choice
+	prompt "TTYS0 device and default console"
+	depends on 40x
+	default UART0_TTYS0
+
+config UART0_TTYS0
+	bool "UART0"
+
+config UART0_TTYS1
+	bool "UART1"
+
+endchoice
+
+config SERIAL_SICC
+	bool "SICC Serial port support"
+	depends on STB03xxx
+
+config UART1_DFLT_CONSOLE
+	bool
+	depends on SERIAL_SICC && UART0_TTYS1
+	default y
+
+config SERIAL_SICC_CONSOLE
+	bool
+	depends on SERIAL_SICC && UART0_TTYS1
+	default y
+endmenu
+
+
+menu "IBM 40x options"
+	depends on 40x
+
+config SERIAL_SICC
+	bool "SICC Serial port"
+	depends on STB03xxx
+
+config UART1_DFLT_CONSOLE
+	bool
+	depends on SERIAL_SICC && UART0_TTYS1
+	default y
+
+config SERIAL_SICC_CONSOLE
+	bool
+	depends on SERIAL_SICC && UART0_TTYS1
+	default y
+
+endmenu