arch/arm/mach-nspire/nspire.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  *      linux/arch/arm/mach-nspire/nspire.c
   4  *
   5  *      Copyright (C) 2013 Daniel Tang <tangrs@tangrs.id.au>
   6  */
   7 #include <linux/init.h>
   8 #include <linux/of_irq.h>
   9 #include <linux/of_address.h>
  10 #include <linux/of_platform.h>
  11 #include <linux/irqchip.h>
  12 #include <linux/irqchip/arm-vic.h>
  13 #include <linux/clkdev.h>
  14 #include <linux/amba/bus.h>
  15
  16 #include <asm/mach/arch.h>
  17 #include <asm/mach-types.h>
  18 #include <asm/mach/map.h>
  19
  20 #include "mmio.h"
  21
  22 static const char *const nspire_dt_match[] __initconst = {
  23         "ti,nspire",
  24         "ti,nspire-cx",
  25         "ti,nspire-tp",
  26         "ti,nspire-clp",
  27         NULL,
  28 };
  29
  30 static void nspire_restart(enum reboot_mode mode, const char *cmd)
  31 {
  32         void __iomem *base = ioremap(NSPIRE_MISC_PHYS_BASE, SZ_4K);
  33         if (!base)
  34                 return;
  35
  36         writel(2, base + NSPIRE_MISC_HWRESET);
  37 }
  38
  39 DT_MACHINE_START(NSPIRE, "TI-NSPIRE")
  40         .dt_compat      = nspire_dt_match,
  41         .restart        = nspire_restart,
  42 MACHINE_END