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[POWERPC] Walnut board support

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Board support for the PPC405 Walnut evaluation board

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Josh Boyer 2007-09-07 07:51:24 -05:00
parent 7f2814d229
commit 545c069ccd
5 changed files with 78 additions and 10 deletions
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14
arch/powerpc/platforms/40x/Kconfig
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@ -53,13 +53,13 @@
# help
# This option enables support for the IBM PPC405GPr evaluation board.
#config WALNUT
# bool "Walnut"
# depends on 40x
# default y
# select 405GP
# help
# This option enables support for the IBM PPC405GP evaluation board.
config WALNUT
bool "Walnut"
depends on 40x
default y
select 405GP
help
This option enables support for the IBM PPC405GP evaluation board.
#config XILINX_ML300
# bool "Xilinx-ML300"

2
arch/powerpc/platforms/40x/Makefile
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@ -1 +1 @@
# empty makefile so make clean works
obj-$(CONFIG_WALNUT) += walnut.o

68
arch/powerpc/platforms/40x/walnut.c Normal file
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@ -0,0 +1,68 @@
/*
* Architecture- / platform-specific boot-time initialization code for
* IBM PowerPC 4xx based boards. Adapted from original
* code by Gary Thomas, Cort Dougan <cort@fsmlabs.com>, and Dan Malek
* <dan@net4x.com>.
*
* Copyright(c) 1999-2000 Grant Erickson <grant@lcse.umn.edu>
*
* Rewritten and ported to the merged powerpc tree:
* Copyright 2007 IBM Corporation
* Josh Boyer <jwboyer@linux.vnet.ibm.com>
*
* 2002 (c) MontaVista, Software, Inc. This file is licensed under
* the terms of the GNU General Public License version 2. This program
* is licensed "as is" without any warranty of any kind, whether express
* or implied.
*/
#include <linux/init.h>
#include <asm/machdep.h>
#include <asm/prom.h>
#include <asm/udbg.h>
#include <asm/time.h>
#include <asm/uic.h>
#include <asm/of_platform.h>
static struct of_device_id walnut_of_bus[] = {
{ .compatible = "ibm,plb3", },
{ .compatible = "ibm,opb", },
{ .compatible = "ibm,ebc", },
{},
};
static int __init walnut_device_probe(void)
{
if (!machine_is(walnut))
return 0;
/* FIXME: do bus probe here */
of_platform_bus_probe(NULL, walnut_of_bus, NULL);
return 0;
}
device_initcall(walnut_device_probe);
static int __init walnut_probe(void)
{
unsigned long root = of_get_flat_dt_root();
if (!of_flat_dt_is_compatible(root, "ibm,walnut"))
return 0;
return 1;
}
static void __init walnut_setup_arch(void)
{
}
define_machine(walnut) {
.name = "Walnut",
.probe = walnut_probe,
.setup_arch = walnut_setup_arch,
.progress = udbg_progress,
.init_IRQ = uic_init_tree,
.get_irq = uic_get_irq,
.calibrate_decr = generic_calibrate_decr,
};

2
arch/powerpc/platforms/Kconfig
View file

@ -59,7 +59,7 @@ source "arch/powerpc/platforms/85xx/Kconfig"
source "arch/powerpc/platforms/86xx/Kconfig"
source "arch/powerpc/platforms/embedded6xx/Kconfig"
source "arch/powerpc/platforms/44x/Kconfig"
#source "arch/powerpc/platforms/4xx/Kconfig
source "arch/powerpc/platforms/40x/Kconfig"
config PPC_NATIVE
bool

2
arch/powerpc/platforms/Makefile
View file

@ -9,7 +9,7 @@ obj-$(CONFIG_PPC_PMAC) += powermac/
endif
endif
obj-$(CONFIG_PPC_CHRP) += chrp/
#obj-$(CONFIG_4xx) += 4xx/
obj-$(CONFIG_40x) += 40x/
obj-$(CONFIG_44x) += 44x/
obj-$(CONFIG_PPC_MPC52xx) += 52xx/
obj-$(CONFIG_PPC_8xx) += 8xx/