mirror of
https://github.com/torvalds/linux.git
synced 2024-11-07 20:51:47 +00:00
041f777c93
Convert the SMP msm platforms to be using the gic_handle_irq function as their primary interrupt handler. Tested-by: David Brown <davidb@codeaurora.org> Acked-by: David Brown <davidb@codeaurora.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
116 lines
3.1 KiB
C
116 lines
3.1 KiB
C
/* Copyright (c) 2011, Code Aurora Forum. All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 and
|
|
* only version 2 as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
|
* 02110-1301, USA.
|
|
*
|
|
*/
|
|
#include <linux/kernel.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/io.h>
|
|
#include <linux/irq.h>
|
|
#include <linux/clkdev.h>
|
|
#include <linux/memblock.h>
|
|
|
|
#include <asm/mach-types.h>
|
|
#include <asm/mach/arch.h>
|
|
#include <asm/hardware/gic.h>
|
|
#include <asm/setup.h>
|
|
|
|
#include <mach/board.h>
|
|
#include <mach/msm_iomap.h>
|
|
|
|
#include "devices.h"
|
|
|
|
static void __init msm8960_fixup(struct tag *tag, char **cmdline,
|
|
struct meminfo *mi)
|
|
{
|
|
for (; tag->hdr.size; tag = tag_next(tag))
|
|
if (tag->hdr.tag == ATAG_MEM &&
|
|
tag->u.mem.start == 0x40200000) {
|
|
tag->u.mem.start = 0x40000000;
|
|
tag->u.mem.size += SZ_2M;
|
|
}
|
|
}
|
|
|
|
static void __init msm8960_reserve(void)
|
|
{
|
|
memblock_remove(0x40000000, SZ_2M);
|
|
}
|
|
|
|
static void __init msm8960_map_io(void)
|
|
{
|
|
msm_map_msm8960_io();
|
|
}
|
|
|
|
static void __init msm8960_init_irq(void)
|
|
{
|
|
unsigned int i;
|
|
gic_init(0, GIC_PPI_START, MSM_QGIC_DIST_BASE,
|
|
(void *)MSM_QGIC_CPU_BASE);
|
|
|
|
/* Edge trigger PPIs except AVS_SVICINT and AVS_SVICINTSWDONE */
|
|
writel(0xFFFFD7FF, MSM_QGIC_DIST_BASE + GIC_DIST_CONFIG + 4);
|
|
|
|
if (machine_is_msm8960_rumi3())
|
|
writel(0x0000FFFF, MSM_QGIC_DIST_BASE + GIC_DIST_ENABLE_SET);
|
|
|
|
/* FIXME: Not installing AVS_SVICINT and AVS_SVICINTSWDONE yet
|
|
* as they are configured as level, which does not play nice with
|
|
* handle_percpu_irq.
|
|
*/
|
|
for (i = GIC_PPI_START; i < GIC_SPI_START; i++) {
|
|
if (i != AVS_SVICINT && i != AVS_SVICINTSWDONE)
|
|
irq_set_handler(i, handle_percpu_irq);
|
|
}
|
|
}
|
|
|
|
static struct platform_device *sim_devices[] __initdata = {
|
|
&msm8960_device_uart_gsbi2,
|
|
};
|
|
|
|
static struct platform_device *rumi3_devices[] __initdata = {
|
|
&msm8960_device_uart_gsbi5,
|
|
};
|
|
|
|
static void __init msm8960_sim_init(void)
|
|
{
|
|
platform_add_devices(sim_devices, ARRAY_SIZE(sim_devices));
|
|
}
|
|
|
|
static void __init msm8960_rumi3_init(void)
|
|
{
|
|
platform_add_devices(rumi3_devices, ARRAY_SIZE(rumi3_devices));
|
|
}
|
|
|
|
MACHINE_START(MSM8960_SIM, "QCT MSM8960 SIMULATOR")
|
|
.fixup = msm8960_fixup,
|
|
.reserve = msm8960_reserve,
|
|
.map_io = msm8960_map_io,
|
|
.init_irq = msm8960_init_irq,
|
|
.timer = &msm_timer,
|
|
.handle_irq = gic_handle_irq,
|
|
.init_machine = msm8960_sim_init,
|
|
MACHINE_END
|
|
|
|
MACHINE_START(MSM8960_RUMI3, "QCT MSM8960 RUMI3")
|
|
.fixup = msm8960_fixup,
|
|
.reserve = msm8960_reserve,
|
|
.map_io = msm8960_map_io,
|
|
.init_irq = msm8960_init_irq,
|
|
.timer = &msm_timer,
|
|
.handle_irq = gic_handle_irq,
|
|
.init_machine = msm8960_rumi3_init,
|
|
MACHINE_END
|
|
|