90 lines
2.4 KiB
C
Executable File
90 lines
2.4 KiB
C
Executable File
/*
|
|
* r8a7779 processor support
|
|
*
|
|
* Copyright (C) 2011, 2013 Renesas Solutions Corp.
|
|
* Copyright (C) 2011 Magnus Damm
|
|
* Copyright (C) 2013 Cogent Embedded, 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; version 2 of the License.
|
|
*
|
|
* 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.
|
|
*/
|
|
#include <linux/init.h>
|
|
#include <linux/irq.h>
|
|
#include <linux/irqchip.h>
|
|
#include <linux/irqchip/arm-gic.h>
|
|
|
|
#include <asm/mach/arch.h>
|
|
#include <asm/mach/map.h>
|
|
|
|
#include "common.h"
|
|
#include "r8a7779.h"
|
|
|
|
static struct map_desc r8a7779_io_desc[] __initdata = {
|
|
/* 2M identity mapping for 0xf0000000 (MPCORE) */
|
|
{
|
|
.virtual = 0xf0000000,
|
|
.pfn = __phys_to_pfn(0xf0000000),
|
|
.length = SZ_2M,
|
|
.type = MT_DEVICE_NONSHARED
|
|
},
|
|
/* 16M identity mapping for 0xfexxxxxx (DMAC-S/HPBREG/INTC2/LRAM/DBSC) */
|
|
{
|
|
.virtual = 0xfe000000,
|
|
.pfn = __phys_to_pfn(0xfe000000),
|
|
.length = SZ_16M,
|
|
.type = MT_DEVICE_NONSHARED
|
|
},
|
|
};
|
|
|
|
static void __init r8a7779_map_io(void)
|
|
{
|
|
debug_ll_io_init();
|
|
iotable_init(r8a7779_io_desc, ARRAY_SIZE(r8a7779_io_desc));
|
|
}
|
|
|
|
/* IRQ */
|
|
#define INT2SMSKCR0 IOMEM(0xfe7822a0)
|
|
#define INT2SMSKCR1 IOMEM(0xfe7822a4)
|
|
#define INT2SMSKCR2 IOMEM(0xfe7822a8)
|
|
#define INT2SMSKCR3 IOMEM(0xfe7822ac)
|
|
#define INT2SMSKCR4 IOMEM(0xfe7822b0)
|
|
|
|
#define INT2NTSR0 IOMEM(0xfe700060)
|
|
#define INT2NTSR1 IOMEM(0xfe700064)
|
|
|
|
static void __init r8a7779_init_irq_dt(void)
|
|
{
|
|
irqchip_init();
|
|
|
|
/* route all interrupts to ARM */
|
|
__raw_writel(0xffffffff, INT2NTSR0);
|
|
__raw_writel(0x3fffffff, INT2NTSR1);
|
|
|
|
/* unmask all known interrupts in INTCS2 */
|
|
__raw_writel(0xfffffff0, INT2SMSKCR0);
|
|
__raw_writel(0xfff7ffff, INT2SMSKCR1);
|
|
__raw_writel(0xfffbffdf, INT2SMSKCR2);
|
|
__raw_writel(0xbffffffc, INT2SMSKCR3);
|
|
__raw_writel(0x003fee3f, INT2SMSKCR4);
|
|
}
|
|
|
|
static const char *const r8a7779_compat_dt[] __initconst = {
|
|
"renesas,r8a7779",
|
|
NULL,
|
|
};
|
|
|
|
DT_MACHINE_START(R8A7779_DT, "Generic R8A7779 (Flattened Device Tree)")
|
|
.smp = smp_ops(r8a7779_smp_ops),
|
|
.map_io = r8a7779_map_io,
|
|
.init_early = shmobile_init_delay,
|
|
.init_irq = r8a7779_init_irq_dt,
|
|
.init_late = shmobile_init_late,
|
|
.dt_compat = r8a7779_compat_dt,
|
|
MACHINE_END
|