8716011315
This patch updates the initialisation routine for the BCMRING platform so that it registers its PMU IRQ with the PMU framework in the Kernel. Acked-by: Leo Chen <leochen@broadcom.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
177 lines
4.5 KiB
C
177 lines
4.5 KiB
C
/*****************************************************************************
|
|
* Copyright 2003 - 2008 Broadcom Corporation. All rights reserved.
|
|
*
|
|
* Unless you and Broadcom execute a separate written software license
|
|
* agreement governing use of this software, this software is licensed to you
|
|
* under the terms of the GNU General Public License version 2, available at
|
|
* http://www.broadcom.com/licenses/GPLv2.php (the "GPL").
|
|
*
|
|
* Notwithstanding the above, under no circumstances may you combine this
|
|
* software in any way with any other Broadcom software provided under a
|
|
* license other than the GPL, without Broadcom's express prior written
|
|
* consent.
|
|
*****************************************************************************/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/types.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/init.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/spinlock.h>
|
|
#include <linux/module.h>
|
|
|
|
#include <linux/proc_fs.h>
|
|
#include <linux/sysctl.h>
|
|
|
|
#include <asm/irq.h>
|
|
#include <asm/setup.h>
|
|
#include <asm/mach-types.h>
|
|
#include <asm/mach/time.h>
|
|
#include <asm/pmu.h>
|
|
|
|
#include <asm/mach/arch.h>
|
|
#include <mach/dma.h>
|
|
#include <mach/hardware.h>
|
|
#include <mach/csp/mm_io.h>
|
|
#include <mach/csp/chipcHw_def.h>
|
|
#include <mach/csp/chipcHw_inline.h>
|
|
|
|
#include <cfg_global.h>
|
|
|
|
#include "core.h"
|
|
|
|
HW_DECLARE_SPINLOCK(arch)
|
|
HW_DECLARE_SPINLOCK(gpio)
|
|
#if defined(CONFIG_DEBUG_SPINLOCK)
|
|
EXPORT_SYMBOL(bcmring_gpio_reg_lock);
|
|
#endif
|
|
|
|
/* sysctl */
|
|
int bcmring_arch_warm_reboot; /* do a warm reboot on hard reset */
|
|
|
|
static struct ctl_table_header *bcmring_sysctl_header;
|
|
|
|
static struct ctl_table bcmring_sysctl_warm_reboot[] = {
|
|
{
|
|
.procname = "warm",
|
|
.data = &bcmring_arch_warm_reboot,
|
|
.maxlen = sizeof(int),
|
|
.mode = 0644,
|
|
.proc_handler = proc_dointvec},
|
|
{}
|
|
};
|
|
|
|
static struct ctl_table bcmring_sysctl_reboot[] = {
|
|
{
|
|
.procname = "reboot",
|
|
.mode = 0555,
|
|
.child = bcmring_sysctl_warm_reboot},
|
|
{}
|
|
};
|
|
|
|
static struct resource nand_resource[] = {
|
|
[0] = {
|
|
.start = MM_ADDR_IO_NAND,
|
|
.end = MM_ADDR_IO_NAND + 0x1000 - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
};
|
|
|
|
static struct platform_device nand_device = {
|
|
.name = "bcm-nand",
|
|
.id = -1,
|
|
.resource = nand_resource,
|
|
.num_resources = ARRAY_SIZE(nand_resource),
|
|
};
|
|
|
|
static struct resource pmu_resource = {
|
|
.start = IRQ_PMUIRQ,
|
|
.end = IRQ_PMUIRQ,
|
|
.flags = IORESOURCE_IRQ,
|
|
};
|
|
|
|
static struct platform_device pmu_device = {
|
|
.name = "arm-pmu",
|
|
.id = ARM_PMU_DEVICE_CPU,
|
|
.resource = &pmu_resource,
|
|
.num_resources = 1,
|
|
};
|
|
|
|
|
|
static struct platform_device *devices[] __initdata = {
|
|
&nand_device,
|
|
&pmu_device,
|
|
};
|
|
|
|
/****************************************************************************
|
|
*
|
|
* Called from the customize_machine function in arch/arm/kernel/setup.c
|
|
*
|
|
* The customize_machine function is tagged as an arch_initcall
|
|
* (see include/linux/init.h for the order that the various init sections
|
|
* are called in.
|
|
*
|
|
*****************************************************************************/
|
|
static void __init bcmring_init_machine(void)
|
|
{
|
|
|
|
bcmring_sysctl_header = register_sysctl_table(bcmring_sysctl_reboot);
|
|
|
|
/* Enable spread spectrum */
|
|
chipcHw_enableSpreadSpectrum();
|
|
|
|
platform_add_devices(devices, ARRAY_SIZE(devices));
|
|
|
|
bcmring_amba_init();
|
|
|
|
dma_init();
|
|
}
|
|
|
|
/****************************************************************************
|
|
*
|
|
* Called from setup_arch (in arch/arm/kernel/setup.c) to fixup any tags
|
|
* passed in by the boot loader.
|
|
*
|
|
*****************************************************************************/
|
|
|
|
static void __init bcmring_fixup(struct machine_desc *desc,
|
|
struct tag *t, char **cmdline, struct meminfo *mi) {
|
|
#ifdef CONFIG_BLK_DEV_INITRD
|
|
printk(KERN_NOTICE "bcmring_fixup\n");
|
|
t->hdr.tag = ATAG_CORE;
|
|
t->hdr.size = tag_size(tag_core);
|
|
t->u.core.flags = 0;
|
|
t->u.core.pagesize = PAGE_SIZE;
|
|
t->u.core.rootdev = 31 << 8 | 0;
|
|
t = tag_next(t);
|
|
|
|
t->hdr.tag = ATAG_MEM;
|
|
t->hdr.size = tag_size(tag_mem32);
|
|
t->u.mem.start = CFG_GLOBAL_RAM_BASE;
|
|
t->u.mem.size = CFG_GLOBAL_RAM_SIZE;
|
|
|
|
t = tag_next(t);
|
|
|
|
t->hdr.tag = ATAG_NONE;
|
|
t->hdr.size = 0;
|
|
#endif
|
|
}
|
|
|
|
/****************************************************************************
|
|
*
|
|
* Machine Description
|
|
*
|
|
*****************************************************************************/
|
|
|
|
MACHINE_START(BCMRING, "BCMRING")
|
|
/* Maintainer: Broadcom Corporation */
|
|
.phys_io = MM_IO_START,
|
|
.io_pg_offst = (MM_IO_BASE >> 18) & 0xfffc,
|
|
.fixup = bcmring_fixup,
|
|
.map_io = bcmring_map_io,
|
|
.init_irq = bcmring_init_irq,
|
|
.timer = &bcmring_timer,
|
|
.init_machine = bcmring_init_machine
|
|
MACHINE_END
|