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Commit fef1c772 authored by Arnd Bergmann's avatar Arnd Bergmann Committed by Paul Mackerras
Browse files

[PATCH] ppc64: add BPA platform type 



This adds the basic support for running on BPA machines.
So far, this is only the IBM workstation, and it will
not run on others without a little more generalization.

It should be possible to configure a kernel for any
combination of CONFIG_PPC_BPA with any of the other
multiplatform targets.

Signed-off-by: default avatarArnd Bergmann <arndb@de.ibm.com>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent 031f7ede

MAINTAINERS

+7 −0
Original line number Diff line number Diff line
@@ -504,6 +504,13 @@ L: bonding-devel@lists.sourceforge.net 
W:   http://sourceforge.net/projects/bonding/

S:   Supported



BROADBAND PROCESSOR ARCHITECTURE

P:	Arnd Bergmann

M:	arnd@arndb.de

L:	linuxppc64-dev@ozlabs.org

W:	http://linuxppc64.org

S:	Supported



BTTV VIDEO4LINUX DRIVER

P:	Gerd Knorr

M:	kraxel@bytesex.org

arch/ppc64/Kconfig

+5 −1
Original line number Diff line number Diff line
@@ -77,6 +77,10 @@ config PPC_PSERIES 
	bool "  IBM pSeries & new iSeries"

	default y



config PPC_BPA

	bool "  Broadband Processor Architecture"

	depends on PPC_MULTIPLATFORM



config PPC_PMAC

	depends on PPC_MULTIPLATFORM

	bool "  Apple G5 based machines"
@@ -256,7 +260,7 @@ config MSCHUNKS 


config PPC_RTAS

	bool

	depends on PPC_PSERIES

	depends on PPC_PSERIES || PPC_BPA

	default y



config RTAS_PROC

arch/ppc64/Makefile

+2 −0
Original line number Diff line number Diff line
@@ -90,12 +90,14 @@ boot := arch/ppc64/boot 
boottarget-$(CONFIG_PPC_PSERIES) := zImage zImage.initrd

boottarget-$(CONFIG_PPC_MAPLE) := zImage zImage.initrd

boottarget-$(CONFIG_PPC_ISERIES) := vmlinux.sminitrd vmlinux.initrd vmlinux.sm

boottarget-$(CONFIG_PPC_BPA) := zImage zImage.initrd

$(boottarget-y): vmlinux

	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@



bootimage-$(CONFIG_PPC_PSERIES) := $(boot)/zImage

bootimage-$(CONFIG_PPC_PMAC) := vmlinux

bootimage-$(CONFIG_PPC_MAPLE) := $(boot)/zImage

bootimage-$(CONFIG_PPC_BPA) := zImage

bootimage-$(CONFIG_PPC_ISERIES) := vmlinux

BOOTIMAGE := $(bootimage-y)

install: vmlinux

arch/ppc64/kernel/Makefile

+3 −0
Original line number Diff line number Diff line
@@ -33,6 +33,8 @@ obj-$(CONFIG_PPC_PSERIES) += pSeries_pci.o pSeries_lpar.o pSeries_hvCall.o \ 
			     pSeries_nvram.o rtasd.o ras.o pSeries_reconfig.o \

			     xics.o pSeries_setup.o pSeries_iommu.o



obj-$(CONFIG_PPC_BPA) += bpa_setup.o bpa_nvram.o



obj-$(CONFIG_EEH)		+= eeh.o

obj-$(CONFIG_PROC_FS)		+= proc_ppc64.o

obj-$(CONFIG_RTAS_FLASH)	+= rtas_flash.o
@@ -59,6 +61,7 @@ ifdef CONFIG_SMP 
obj-$(CONFIG_PPC_PMAC)		+= pmac_smp.o smp-tbsync.o

obj-$(CONFIG_PPC_ISERIES)	+= iSeries_smp.o

obj-$(CONFIG_PPC_PSERIES)	+= pSeries_smp.o

obj-$(CONFIG_PPC_BPA)		+= pSeries_smp.o

obj-$(CONFIG_PPC_MAPLE)		+= smp-tbsync.o

endif

arch/ppc64/kernel/bpa_setup.c

0 → 100644
+135 −0
Original line number Diff line number Diff line 
/*

 *  linux/arch/ppc/kernel/bpa_setup.c

 *

 *  Copyright (C) 1995  Linus Torvalds

 *  Adapted from 'alpha' version by Gary Thomas

 *  Modified by Cort Dougan (cort@cs.nmt.edu)

 *  Modified by PPC64 Team, IBM Corp

 *  Modified by BPA Team, IBM Deutschland Entwicklung GmbH

 *

 * 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.

 */

#undef DEBUG



#include <linux/config.h>

#include <linux/sched.h>

#include <linux/kernel.h>

#include <linux/mm.h>

#include <linux/stddef.h>

#include <linux/unistd.h>

#include <linux/slab.h>

#include <linux/user.h>

#include <linux/reboot.h>

#include <linux/init.h>

#include <linux/delay.h>

#include <linux/irq.h>

#include <linux/seq_file.h>

#include <linux/root_dev.h>

#include <linux/console.h>



#include <asm/mmu.h>

#include <asm/processor.h>

#include <asm/io.h>

#include <asm/pgtable.h>

#include <asm/prom.h>

#include <asm/rtas.h>

#include <asm/pci-bridge.h>

#include <asm/iommu.h>

#include <asm/dma.h>

#include <asm/machdep.h>

#include <asm/time.h>

#include <asm/nvram.h>

#include <asm/cputable.h>



#include "pci.h"



#ifdef DEBUG

#define DBG(fmt...) udbg_printf(fmt)

#else

#define DBG(fmt...)

#endif



void bpa_get_cpuinfo(struct seq_file *m)

{

	struct device_node *root;

	const char *model = "";



	root = of_find_node_by_path("/");

	if (root)

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

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

	of_node_put(root);

}



static void bpa_progress(char *s, unsigned short hex)

{

	printk("*** %04x : %s\n", hex, s ? s : "");

}



static void __init bpa_setup_arch(void)

{

#ifdef CONFIG_SMP

	smp_init_pSeries();

#endif



	/* init to some ~sane value until calibrate_delay() runs */

	loops_per_jiffy = 50000000;



	if (ROOT_DEV == 0) {

		printk("No ramdisk, default root is /dev/hda2\n");

		ROOT_DEV = Root_HDA2;

	}



	/* Find and initialize PCI host bridges */

	init_pci_config_tokens();

	find_and_init_phbs();



#ifdef CONFIG_DUMMY_CONSOLE

	conswitchp = &dummy_con;

#endif



	bpa_nvram_init();

}



/*

 * Early initialization.  Relocation is on but do not reference unbolted pages

 */

static void __init bpa_init_early(void)

{

	DBG(" -> bpa_init_early()\n");



	hpte_init_native();



	pci_direct_iommu_init();



	ppc64_interrupt_controller = IC_BPA_IIC;



	DBG(" <- bpa_init_early()\n");

}





static int __init bpa_probe(int platform)

{

	if (platform != PLATFORM_BPA)

		return 0;



	return 1;

}



struct machdep_calls __initdata bpa_md = {

	.probe			= bpa_probe,

	.setup_arch		= bpa_setup_arch,

	.init_early		= bpa_init_early,

	.get_cpuinfo		= bpa_get_cpuinfo,

	.restart		= rtas_restart,

	.power_off		= rtas_power_off,

	.halt			= rtas_halt,

	.get_boot_time		= rtas_get_boot_time,

	.get_rtc_time		= rtas_get_rtc_time,

	.set_rtc_time		= rtas_set_rtc_time,

	.calibrate_decr		= generic_calibrate_decr,

	.progress		= bpa_progress,

};