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Commit 0e0fffe8 authored by Paul Gortmaker's avatar Paul Gortmaker Committed by Kumar Gala
Browse files

[POWERPC] 85xx: Add basic support for Wind River SBC8548 board 



This adds the basic support for the Wind River SBC8548 board, implemented
as powerpc.  It closely follows the implementation of the MPC8548CDS.

Signed-off-by: default avatarPaul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: default avatarKumar Gala <galak@kernel.crashing.org>
parent 3ad1f931

arch/powerpc/platforms/85xx/Kconfig

+8 −2
Original line number Diff line number Diff line
@@ -83,6 +83,12 @@ config TQM8560 
	select TQM85xx

	select CPM2



config SBC8548

	bool "Wind River SBC8548"

	select DEFAULT_UIMAGE

	help

	  This option enables support for the Wind River SBC8548 board



config SBC8560

	bool "Wind River SBC8560"

	select DEFAULT_UIMAGE
@@ -100,7 +106,7 @@ config MPC8540 
	bool

	select PPC_UDBG_16550

	select PPC_INDIRECT_PCI

	default y if MPC8540_ADS || MPC85xx_CDS

	default y if MPC8540_ADS || MPC85xx_CDS || SBC8548



config MPC85xx

	bool
@@ -110,4 +116,4 @@ config MPC85xx 
	select FSL_PCI if PCI

	select SERIAL_8250_SHARE_IRQ if SERIAL_8250

	default y if MPC8540_ADS || MPC85xx_CDS || MPC8560_ADS \

		|| MPC85xx_MDS || MPC85xx_DS || STX_GP3 || SBC8560
 
		|| MPC85xx_MDS || MPC85xx_DS || STX_GP3 || SBC8560 || SBC8548

arch/powerpc/platforms/85xx/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -9,3 +9,4 @@ obj-$(CONFIG_MPC85xx_MDS) += mpc85xx_mds.o 
obj-$(CONFIG_STX_GP3)	  += stx_gp3.o

obj-$(CONFIG_TQM85xx)	  += tqm85xx.o

obj-$(CONFIG_SBC8560)     += sbc8560.o

obj-$(CONFIG_SBC8548)     += sbc8548.o

arch/powerpc/platforms/85xx/sbc8548.c

0 → 100644
+169 −0
Original line number Diff line number Diff line 
/*

 * Wind River SBC8548 setup and early boot code.

 *

 * Copyright 2007 Wind River Systems Inc.

 *

 * By Paul Gortmaker (see MAINTAINERS for contact information)

 *

 * Based largely on the MPC8548CDS support - Copyright 2005 Freescale 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/init.h>

#include <linux/errno.h>

#include <linux/reboot.h>

#include <linux/pci.h>

#include <linux/kdev_t.h>

#include <linux/major.h>

#include <linux/console.h>

#include <linux/delay.h>

#include <linux/seq_file.h>

#include <linux/initrd.h>

#include <linux/module.h>

#include <linux/interrupt.h>

#include <linux/fsl_devices.h>

#include <linux/of_platform.h>



#include <asm/system.h>

#include <asm/pgtable.h>

#include <asm/page.h>

#include <asm/atomic.h>

#include <asm/time.h>

#include <asm/io.h>

#include <asm/machdep.h>

#include <asm/ipic.h>

#include <asm/pci-bridge.h>

#include <asm/irq.h>

#include <mm/mmu_decl.h>

#include <asm/prom.h>

#include <asm/udbg.h>

#include <asm/mpic.h>



#include <sysdev/fsl_soc.h>

#include <sysdev/fsl_pci.h>



static void __init sbc8548_pic_init(void)

{

	struct mpic *mpic;

	struct resource r;

	struct device_node *np = NULL;



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



	if (np == NULL) {

		printk(KERN_ERR "Could not find open-pic node\n");

		return;

	}



	if (of_address_to_resource(np, 0, &r)) {

		printk(KERN_ERR "Failed to map mpic register space\n");

		of_node_put(np);

		return;

	}



	mpic = mpic_alloc(np, r.start,

			MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,

			0, 256, " OpenPIC  ");

	BUG_ON(mpic == NULL);



	/* Return the mpic node */

	of_node_put(np);



	mpic_init(mpic);

}



/*

 * Setup the architecture

 */

static void __init sbc8548_setup_arch(void)

{

#ifdef CONFIG_PCI

	struct device_node *np;

#endif



	if (ppc_md.progress)

		ppc_md.progress("sbc8548_setup_arch()", 0);



#ifdef CONFIG_PCI

	for_each_node_by_type(np, "pci") {

		if (of_device_is_compatible(np, "fsl,mpc8540-pci") ||

		    of_device_is_compatible(np, "fsl,mpc8548-pcie")) {

			struct resource rsrc;

			of_address_to_resource(np, 0, &rsrc);

			if ((rsrc.start & 0xfffff) == 0x8000)

				fsl_add_bridge(np, 1);

			else

				fsl_add_bridge(np, 0);

		}

	}

#endif

}



static void sbc8548_show_cpuinfo(struct seq_file *m)

{

	uint pvid, svid, phid1;

	uint memsize = total_memory;



	pvid = mfspr(SPRN_PVR);

	svid = mfspr(SPRN_SVR);



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

	seq_printf(m, "Machine\t\t: SBC8548\n");

	seq_printf(m, "PVR\t\t: 0x%x\n", pvid);

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



	/* Display cpu Pll setting */

	phid1 = mfspr(SPRN_HID1);

	seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f));



	/* Display the amount of memory */

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

}



static struct of_device_id __initdata of_bus_ids[] = {

	{ .name = "soc", },

	{ .type = "soc", },

	{},

};



static int __init declare_of_platform_devices(void)

{

	if (!machine_is(sbc8548))

		return 0;



	of_platform_bus_probe(NULL, of_bus_ids, NULL);

	return 0;

}

device_initcall(declare_of_platform_devices);



/*

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

 */

static int __init sbc8548_probe(void)

{

        unsigned long root = of_get_flat_dt_root();



        return of_flat_dt_is_compatible(root, "SBC8548");

}



define_machine(sbc8548) {

	.name		= "SBC8548",

	.probe		= sbc8548_probe,

	.setup_arch	= sbc8548_setup_arch,

	.init_IRQ	= sbc8548_pic_init,

	.show_cpuinfo	= sbc8548_show_cpuinfo,

	.get_irq	= mpic_get_irq,

	.restart	= fsl_rstcr_restart,

#ifdef CONFIG_PCI

	.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,

#endif

	.calibrate_decr = generic_calibrate_decr,

	.progress	= udbg_progress,

};