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powerpc/cell: add QPACE as a separate Cell platform

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Since the QPACE (Chromodynamics Parallel Computing on the
Cell Broadband Engine) platform doesn't use a iommu, doesn't
have PCI devices and a MPIC much lesser setup and
configurations are needed. So far all devices are detected
as OF device. A notifier function is used to set the dma_ops
for the of_platform bus. Further this patch splits the
PPC_CELL_NATIVE into PPC_CELL_COMMON which are parts that are
shared with the QPACE platform and the rest.

Signed-off-by: Benjamin Krill <ben@codiert.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Benjamin Krill 2008-11-27 16:15:44 +01:00 committed by Arnd Bergmann
parent e68558ddcd
commit def434c231
5 changed files with 175 additions and 16 deletions
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1
arch/powerpc/boot/Makefile
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@ -194,6 +194,7 @@ image-$(CONFIG_PPC_MAPLE) += zImage.pseries
image-$(CONFIG_PPC_IBM_CELL_BLADE) += zImage.pseries
image-$(CONFIG_PPC_PS3) += dtbImage.ps3
image-$(CONFIG_PPC_CELLEB) += zImage.pseries
image-$(CONFIG_PPC_CELL_QPACE) += zImage.pseries
image-$(CONFIG_PPC_CHRP) += zImage.chrp
image-$(CONFIG_PPC_EFIKA) += zImage.chrp
image-$(CONFIG_PPC_PMAC) += zImage.pmac

19
arch/powerpc/platforms/cell/Kconfig
View File

@ -2,13 +2,18 @@ config PPC_CELL
bool
default n
config PPC_CELL_NATIVE
config PPC_CELL_COMMON
bool
select PPC_CELL
select PPC_DCR_MMIO
select PPC_OF_PLATFORM_PCI
select PPC_INDIRECT_IO
select PPC_NATIVE
select PPC_RTAS
config PPC_CELL_NATIVE
bool
select PPC_CELL_COMMON
select PPC_OF_PLATFORM_PCI
select MPIC
select IBM_NEW_EMAC_EMAC4
select IBM_NEW_EMAC_RGMII
@ -20,7 +25,6 @@ config PPC_IBM_CELL_BLADE
bool "IBM Cell Blade"
depends on PPC_MULTIPLATFORM && PPC64
select PPC_CELL_NATIVE
select PPC_RTAS
select MMIO_NVRAM
select PPC_UDBG_16550
select UDBG_RTAS_CONSOLE
@ -28,16 +32,17 @@ config PPC_IBM_CELL_BLADE
config PPC_CELLEB
bool "Toshiba's Cell Reference Set 'Celleb' Architecture"
depends on PPC_MULTIPLATFORM && PPC64
select PPC_CELL
select PPC_CELL_NATIVE
select PPC_RTAS
select PPC_INDIRECT_IO
select PPC_OF_PLATFORM_PCI
select HAS_TXX9_SERIAL
select PPC_UDBG_BEAT
select USB_OHCI_BIG_ENDIAN_MMIO
select USB_EHCI_BIG_ENDIAN_MMIO
config PPC_CELL_QPACE
bool "IBM Cell - QPACE"
depends on PPC_MULTIPLATFORM && PPC64
select PPC_CELL_COMMON
menu "Cell Broadband Engine options"
depends on PPC_CELL

17
arch/powerpc/platforms/cell/Makefile
View File

@ -1,7 +1,7 @@
obj-$(CONFIG_PPC_CELL_NATIVE) += interrupt.o iommu.o setup.o \
cbe_regs.o spider-pic.o \
pervasive.o pmu.o io-workarounds.o \
spider-pci.o
obj-$(CONFIG_PPC_CELL_COMMON) += cbe_regs.o interrupt.o pervasive.o
obj-$(CONFIG_PPC_CELL_NATIVE) += iommu.o setup.o spider-pic.o \
pmu.o io-workarounds.o spider-pci.o
obj-$(CONFIG_CBE_RAS) += ras.o
obj-$(CONFIG_CBE_THERM) += cbe_thermal.o
@ -14,13 +14,12 @@ obj-$(CONFIG_PPC_IBM_CELL_POWERBUTTON) += cbe_powerbutton.o
ifeq ($(CONFIG_SMP),y)
obj-$(CONFIG_PPC_CELL_NATIVE) += smp.o
obj-$(CONFIG_PPC_CELL_QPACE) += smp.o
endif
# needed only when building loadable spufs.ko
spu-priv1-$(CONFIG_PPC_CELL_NATIVE) += spu_priv1_mmio.o
spu-manage-$(CONFIG_PPC_CELLEB) += spu_manage.o
spu-manage-$(CONFIG_PPC_CELL_NATIVE) += spu_manage.o
spu-priv1-$(CONFIG_PPC_CELL_COMMON) += spu_priv1_mmio.o
spu-manage-$(CONFIG_PPC_CELL_COMMON) += spu_manage.o
obj-$(CONFIG_SPU_BASE) += spu_callbacks.o spu_base.o \
spu_notify.o \
@ -31,6 +30,8 @@ obj-$(CONFIG_SPU_BASE) += spu_callbacks.o spu_base.o \
obj-$(CONFIG_PCI_MSI) += axon_msi.o
# qpace setup
obj-$(CONFIG_PPC_CELL_QPACE) += qpace_setup.o
# celleb stuff
ifeq ($(CONFIG_PPC_CELLEB),y)

152
arch/powerpc/platforms/cell/qpace_setup.c Normal file
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@ -0,0 +1,152 @@
/*
* linux/arch/powerpc/platforms/cell/qpace_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 Cell Team, IBM Deutschland Entwicklung GmbH
* Modified by Benjamin Krill <ben@codiert.org>, IBM Corp.
*
* 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/sched.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/irq.h>
#include <linux/console.h>
#include <linux/of_platform.h>
#include <asm/mmu.h>
#include <asm/processor.h>
#include <asm/io.h>
#include <asm/kexec.h>
#include <asm/pgtable.h>
#include <asm/prom.h>
#include <asm/rtas.h>
#include <asm/dma.h>
#include <asm/machdep.h>
#include <asm/time.h>
#include <asm/cputable.h>
#include <asm/irq.h>
#include <asm/spu.h>
#include <asm/spu_priv1.h>
#include <asm/udbg.h>
#include <asm/cell-regs.h>
#include "interrupt.h"
#include "pervasive.h"
#include "ras.h"
#include "io-workarounds.h"
static void qpace_show_cpuinfo(struct seq_file *m)
{
struct device_node *root;
const char *model = "";
root = of_find_node_by_path("/");
if (root)
model = of_get_property(root, "model", NULL);
seq_printf(m, "machine\t\t: CHRP %s\n", model);
of_node_put(root);
}
static void qpace_progress(char *s, unsigned short hex)
{
printk("*** %04x : %s\n", hex, s ? s : "");
}
static int __init qpace_publish_devices(void)
{
int node;
/* Publish OF platform devices for southbridge IOs */
of_platform_bus_probe(NULL, NULL, NULL);
/* There is no device for the MIC memory controller, thus we create
* a platform device for it to attach the EDAC driver to.
*/
for_each_online_node(node) {
if (cbe_get_cpu_mic_tm_regs(cbe_node_to_cpu(node)) == NULL)
continue;
platform_device_register_simple("cbe-mic", node, NULL, 0);
}
return 0;
}
machine_subsys_initcall(qpace, qpace_publish_devices);
extern int qpace_notify(struct device *dev)
{
/* set dma_ops for of_platform bus */
if (dev->bus && dev->bus->name
&& !strcmp(dev->bus->name, "of_platform"))
set_dma_ops(dev, &dma_direct_ops);
return 0;
}
static void __init qpace_setup_arch(void)
{
#ifdef CONFIG_SPU_BASE
spu_priv1_ops = &spu_priv1_mmio_ops;
spu_management_ops = &spu_management_of_ops;
#endif
cbe_regs_init();
#ifdef CONFIG_CBE_RAS
cbe_ras_init();
#endif
#ifdef CONFIG_SMP
smp_init_cell();
#endif
/* init to some ~sane value until calibrate_delay() runs */
loops_per_jiffy = 50000000;
cbe_pervasive_init();
#ifdef CONFIG_DUMMY_CONSOLE
conswitchp = &dummy_con;
#endif
/* set notifier function */
platform_notify = &qpace_notify;
}
static int __init qpace_probe(void)
{
unsigned long root = of_get_flat_dt_root();
if (!of_flat_dt_is_compatible(root, "IBM,QPACE"))
return 0;
hpte_init_native();
return 1;
}
define_machine(qpace) {
.name = "QPACE",
.probe = qpace_probe,
.setup_arch = qpace_setup_arch,
.show_cpuinfo = qpace_show_cpuinfo,
.restart = rtas_restart,
.power_off = rtas_power_off,
.halt = rtas_halt,
.get_boot_time = rtas_get_boot_time,
.calibrate_decr = generic_calibrate_decr,
.progress = qpace_progress,
.init_IRQ = iic_init_IRQ,
#ifdef CONFIG_KEXEC
.machine_kexec = default_machine_kexec,
.machine_kexec_prepare = default_machine_kexec_prepare,
.machine_crash_shutdown = default_machine_crash_shutdown,
#endif
};

2
drivers/edac/Kconfig
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@ -161,7 +161,7 @@ config EDAC_PASEMI
config EDAC_CELL
tristate "Cell Broadband Engine memory controller"
depends on EDAC_MM_EDAC && PPC_CELL_NATIVE
depends on EDAC_MM_EDAC && PPC_CELL_COMMON
help
Support for error detection and correction on the
Cell Broadband Engine internal memory controller