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Commit 8105fa88 authored by Josh Boyer's avatar Josh Boyer
Browse files

powerpc/40x: Add PowerPC 40x simple platform support 



This adds a common board file for almost all of the "simple" PowerPC 40x
boards that exist today.  This is intended to be a single place to add
support for boards that do not differ in platform support from most of the
evaluation boards that are used as reference platforms.  Boards that have
specific requirements or custom hardware setup should still have their own
board.c file.

The first board ported to this is the AMCC PowerPC 405EZ Acadia board.

Signed-off-by: default avatarJosh Boyer <jwboyer@linux.vnet.ibm.com>
parent df8f71fa

arch/powerpc/platforms/40x/Kconfig

+22 −0
Original line number Original line Diff line number Diff line
@@ -14,6 +14,15 @@ 
#	help

#	help

#	  This option enables support for the CPCI405 board.

#	  This option enables support for the CPCI405 board.





config ACADIA

	bool "Acadia"

	depends on 40x

	default n

	select PPC40x_SIMPLE

	select 405EZ

	help

	  This option enables support for the AMCC 405EZ Acadia evaluation board.



config EP405

config EP405

	bool "EP405/EP405PC"

	bool "EP405/EP405PC"

	depends on 40x

	depends on 40x
@@ -93,6 +102,13 @@ config XILINX_VIRTEX_GENERIC_BOARD 
	  Most Virtex designs should use this unless it needs to do some

	  Most Virtex designs should use this unless it needs to do some

	  special configuration at board probe time.

	  special configuration at board probe time.





config PPC40x_SIMPLE

	bool "Simple PowerPC 40x board support"

	depends on 40x

	default n

	help

	  This option enables the simple PowerPC 40x platform support.



# 40x specific CPU modules, selected based on the board above.

# 40x specific CPU modules, selected based on the board above.

config NP405H

config NP405H

	bool

	bool
@@ -118,6 +134,12 @@ config 405EX 
	select IBM_NEW_EMAC_EMAC4

	select IBM_NEW_EMAC_EMAC4

	select IBM_NEW_EMAC_RGMII

	select IBM_NEW_EMAC_RGMII





config 405EZ

	bool

	select IBM_NEW_EMAC_NO_FLOW_CTRL

	select IBM_NEW_EMAC_MAL_CLR_ICINTSTAT

	select IBM_NEW_EMAC_MAL_COMMON_ERR



config 405GPR

config 405GPR

	bool

	bool

arch/powerpc/platforms/40x/Makefile

+1 −0
Original line number Original line Diff line number Diff line
@@ -3,3 +3,4 @@ obj-$(CONFIG_MAKALU) += makalu.o 
obj-$(CONFIG_WALNUT)				+= walnut.o

obj-$(CONFIG_WALNUT)				+= walnut.o

obj-$(CONFIG_XILINX_VIRTEX_GENERIC_BOARD)	+= virtex.o

obj-$(CONFIG_XILINX_VIRTEX_GENERIC_BOARD)	+= virtex.o

obj-$(CONFIG_EP405)				+= ep405.o

obj-$(CONFIG_EP405)				+= ep405.o

obj-$(CONFIG_PPC40x_SIMPLE)		+= ppc40x_simple.o

arch/powerpc/platforms/40x/ppc40x_simple.c

0 → 100644
+80 −0
Original line number Original line Diff line number Diff line 
/*

 * Generic PowerPC 40x platform support

 *

 * Copyright 2008 IBM Corporation

 *

 * This program is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License as published by the

 * Free Software Foundation; version 2 of the License.

 *

 * This implements simple platform support for PowerPC 44x chips.  This is

 * mostly used for eval boards or other simple and "generic" 44x boards.  If

 * your board has custom functions or hardware, then you will likely want to

 * implement your own board.c file to accommodate it.

 */



#include <asm/machdep.h>

#include <asm/pci-bridge.h>

#include <asm/ppc4xx.h>

#include <asm/prom.h>

#include <asm/time.h>

#include <asm/udbg.h>

#include <asm/uic.h>



#include <linux/init.h>

#include <linux/of_platform.h>



static __initdata struct of_device_id ppc40x_of_bus[] = {

	{ .compatible = "ibm,plb3", },

	{ .compatible = "ibm,plb4", },

	{ .compatible = "ibm,opb", },

	{ .compatible = "ibm,ebc", },

	{ .compatible = "simple-bus", },

	{},

};



static int __init ppc40x_device_probe(void)

{

	of_platform_bus_probe(NULL, ppc40x_of_bus, NULL);



	return 0;

}

machine_device_initcall(ppc40x_simple, ppc40x_device_probe);



/* This is the list of boards that can be supported by this simple

 * platform code.  This does _not_ mean the boards are compatible,

 * as they most certainly are not from a device tree perspective.

 * However, their differences are handled by the device tree and the

 * drivers and therefore they don't need custom board support files.

 *

 * Again, if your board needs to do things differently then create a

 * board.c file for it rather than adding it to this list.

 */

static char *board[] __initdata = {

	"amcc,acadia"

};



static int __init ppc40x_probe(void)

{

	unsigned long root = of_get_flat_dt_root();

	int i = 0;



	for (i = 0; i < ARRAY_SIZE(board); i++) {

		if (of_flat_dt_is_compatible(root, board[i])) {

			ppc_pci_flags = PPC_PCI_REASSIGN_ALL_RSRC;

			return 1;

		}

	}



	return 0;

}



define_machine(ppc40x_simple) {

	.name = "PowerPC 40x Platform",

	.probe = ppc40x_probe,

	.progress = udbg_progress,

	.init_IRQ = uic_init_tree,

	.get_irq = uic_get_irq,

	.restart = ppc4xx_reset_system,

	.calibrate_decr = generic_calibrate_decr,

};