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Commit 4e8aae89 authored by Paul Gortmaker's avatar Paul Gortmaker Committed by Kumar Gala
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[POWERPC] 86xx: Add support for Wind River SBC8641D board 



This adds support for the Wind River SBC8641D board, based
largely on the mpc86xx_hpcn support.  The biggest difference is
the lack of the Uli and the i8259 cascade, which simplifies things.

Signed-off-by: default avatarPaul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: default avatarKumar Gala <galak@kernel.crashing.org>
parent 1e31de7a

arch/powerpc/platforms/86xx/Kconfig

+7 −1
Original line number Diff line number Diff line
@@ -11,6 +11,12 @@ config MPC8641_HPCN 
	help

	  This option enables support for the MPC8641 HPCN board.



config SBC8641D

	bool "Wind River SBC8641D"

	select DEFAULT_UIMAGE

	help

	  This option enables support for the WRS SBC8641D board.



config MPC8610_HPCD

	bool "Freescale MPC8610 HPCD"

	select DEFAULT_UIMAGE
@@ -24,7 +30,7 @@ config MPC8641 
	select FSL_PCI if PCI

	select PPC_UDBG_16550

	select MPIC

	default y if MPC8641_HPCN

	default y if MPC8641_HPCN || SBC8641D



config MPC8610

	bool

arch/powerpc/platforms/86xx/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -4,4 +4,5 @@ 


obj-$(CONFIG_SMP)		+= mpc86xx_smp.o

obj-$(CONFIG_MPC8641_HPCN)	+= mpc86xx_hpcn.o

obj-$(CONFIG_SBC8641D)		+= sbc8641d.o

obj-$(CONFIG_MPC8610_HPCD)	+= mpc8610_hpcd.o

arch/powerpc/platforms/86xx/sbc8641d.c

0 → 100644
+164 −0
Original line number Diff line number Diff line 
/*

 * SBC8641D board specific routines

 *

 * Copyright 2008 Wind River Systems Inc.

 *

 * By Paul Gortmaker (see MAINTAINERS for contact information)

 *

 * Based largely on the 8641 HPCN support by Freescale Semiconductor Inc.

 *

 * 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;  either version 2 of the  License, or (at your

 * option) any later version.

 */



#include <linux/stddef.h>

#include <linux/kernel.h>

#include <linux/pci.h>

#include <linux/kdev_t.h>

#include <linux/delay.h>

#include <linux/seq_file.h>

#include <linux/of_platform.h>



#include <asm/system.h>

#include <asm/time.h>

#include <asm/machdep.h>

#include <asm/pci-bridge.h>

#include <asm/mpc86xx.h>

#include <asm/prom.h>

#include <mm/mmu_decl.h>

#include <asm/udbg.h>



#include <asm/mpic.h>



#include <sysdev/fsl_pci.h>

#include <sysdev/fsl_soc.h>



#include "mpc86xx.h"



static void __init

sbc8641_init_irq(void)

{

	struct mpic *mpic1;

	struct device_node *np;

	struct resource res;



	/* Determine PIC address. */

	np = of_find_node_by_type(NULL, "open-pic");

	if (np == NULL)

		return;

	of_address_to_resource(np, 0, &res);



	/* Alloc mpic structure and per isu has 16 INT entries. */

	mpic1 = mpic_alloc(np, res.start,

			MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,

			0, 256, " MPIC     ");

	of_node_put(np);

	BUG_ON(mpic1 == NULL);



	mpic_init(mpic1);

}



static void __init

sbc8641_setup_arch(void)

{

#ifdef CONFIG_PCI

	struct device_node *np;

#endif



	if (ppc_md.progress)

		ppc_md.progress("sbc8641_setup_arch()", 0);



#ifdef CONFIG_PCI

	for_each_compatible_node(np, "pci", "fsl,mpc8641-pcie")

		fsl_add_bridge(np, 0);

#endif



	printk("SBC8641 board from Wind River\n");



#ifdef CONFIG_SMP

	mpc86xx_smp_init();

#endif

}





static void

sbc8641_show_cpuinfo(struct seq_file *m)

{

	struct device_node *root;

	uint memsize = total_memory;

	const char *model = "";

	uint svid = mfspr(SPRN_SVR);



	seq_printf(m, "Vendor\t\t: Wind River Systems\n");



	root = of_find_node_by_path("/");

	if (root)

		model = of_get_property(root, "model", NULL);

	seq_printf(m, "Machine\t\t: %s\n", model);

	of_node_put(root);



	seq_printf(m, "SVR\t\t: 0x%x\n", svid);

	seq_printf(m, "Memory\t\t: %d MB\n", memsize / (1024 * 1024));

}





/*

 * Called very early, device-tree isn't unflattened

 */

static int __init sbc8641_probe(void)

{

	unsigned long root = of_get_flat_dt_root();



	if (of_flat_dt_is_compatible(root, "wind,sbc8641"))

		return 1;	/* Looks good */



	return 0;

}



static long __init

mpc86xx_time_init(void)

{

	unsigned int temp;



	/* Set the time base to zero */

	mtspr(SPRN_TBWL, 0);

	mtspr(SPRN_TBWU, 0);



	temp = mfspr(SPRN_HID0);

	temp |= HID0_TBEN;

	mtspr(SPRN_HID0, temp);

	asm volatile("isync");



	return 0;

}



static __initdata struct of_device_id of_bus_ids[] = {

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

	{},

};



static int __init declare_of_platform_devices(void)

{

	of_platform_bus_probe(NULL, of_bus_ids, NULL);



	return 0;

}

machine_device_initcall(sbc8641, declare_of_platform_devices);



define_machine(sbc8641) {

	.name			= "SBC8641D",

	.probe			= sbc8641_probe,

	.setup_arch		= sbc8641_setup_arch,

	.init_IRQ		= sbc8641_init_irq,

	.show_cpuinfo		= sbc8641_show_cpuinfo,

	.get_irq		= mpic_get_irq,

	.restart		= fsl_rstcr_restart,

	.time_init		= mpc86xx_time_init,

	.calibrate_decr		= generic_calibrate_decr,

	.progress		= udbg_progress,

#ifdef CONFIG_PCI

	.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,

#endif

};