LXR linux/arch/arm/mach-shmobile/setup-r8a7779.c

   1// SPDX-License-Identifier: GPL-2.0
   2/*
   3 * r8a7779 processor support
   4 *
   5 * Copyright (C) 2011, 2013  Renesas Solutions Corp.
   6 * Copyright (C) 2011  Magnus Damm
   7 * Copyright (C) 2013  Cogent Embedded, Inc.
   8 */
   9#include <linux/init.h>
  10#include <linux/irqchip.h>
  11
  12#include <asm/mach/arch.h>
  13#include <asm/mach/map.h>
  14
  15#include "common.h"
  16#include "r8a7779.h"
  17
  18#define HPBREG_BASE     0xfe700000
  19
  20/* IRQ */
  21#define INT2SMSKCR0     0x822a0 /* Interrupt Submask Clear Register 0 */
  22#define INT2SMSKCR1     0x822a4 /* Interrupt Submask Clear Register 1 */
  23#define INT2SMSKCR2     0x822a8 /* Interrupt Submask Clear Register 2 */
  24#define INT2SMSKCR3     0x822ac /* Interrupt Submask Clear Register 3 */
  25#define INT2SMSKCR4     0x822b0 /* Interrupt Submask Clear Register 4 */
  26
  27#define INT2NTSR0       0x00060 /* Interrupt Notification Select Register 0 */
  28#define INT2NTSR1       0x00064 /* Interrupt Notification Select Register 1 */
  29
  30static void __init r8a7779_init_irq_dt(void)
  31{
  32        void __iomem *base = ioremap(HPBREG_BASE, 0x00100000);
  33
  34        irqchip_init();
  35
  36        /* route all interrupts to ARM */
  37        writel(0xffffffff, base + INT2NTSR0);
  38        writel(0x3fffffff, base + INT2NTSR1);
  39
  40        /* unmask all known interrupts in INTCS2 */
  41        writel(0xfffffff0, base + INT2SMSKCR0);
  42        writel(0xfff7ffff, base + INT2SMSKCR1);
  43        writel(0xfffbffdf, base + INT2SMSKCR2);
  44        writel(0xbffffffc, base + INT2SMSKCR3);
  45        writel(0x003fee3f, base + INT2SMSKCR4);
  46
  47        iounmap(base);
  48}
  49
  50static const char *const r8a7779_compat_dt[] __initconst = {
  51        "renesas,r8a7779",
  52        NULL,
  53};
  54
  55DT_MACHINE_START(R8A7779_DT, "Generic R8A7779 (Flattened Device Tree)")
  56        .smp            = smp_ops(r8a7779_smp_ops),
  57        .init_irq       = r8a7779_init_irq_dt,
  58        .init_late      = shmobile_init_late,
  59        .dt_compat      = r8a7779_compat_dt,
  60MACHINE_END
  61