LXR linux/arch/arm/mach-nspire/nspire.c

   1/*
   2 *      linux/arch/arm/mach-nspire/nspire.c
   3 *
   4 *      Copyright (C) 2013 Daniel Tang <tangrs@tangrs.id.au>
   5 *
   6 * This program is free software; you can redistribute it and/or modify
   7 * it under the terms of the GNU General Public License version 2, as
   8 * published by the Free Software Foundation.
   9 *
  10 */
  11#include <linux/init.h>
  12#include <linux/of_irq.h>
  13#include <linux/of_address.h>
  14#include <linux/of_platform.h>
  15#include <linux/irqchip.h>
  16#include <linux/irqchip/arm-vic.h>
  17#include <linux/clk-provider.h>
  18#include <linux/clkdev.h>
  19#include <linux/amba/bus.h>
  20#include <linux/amba/clcd.h>
  21#include <linux/clocksource.h>
  22
  23#include <asm/mach/arch.h>
  24#include <asm/mach-types.h>
  25#include <asm/mach/map.h>
  26
  27#include <asm/hardware/timer-sp.h>
  28
  29#include "mmio.h"
  30#include "clcd.h"
  31
  32static const char *nspire_dt_match[] __initconst = {
  33        "ti,nspire",
  34        "ti,nspire-cx",
  35        "ti,nspire-tp",
  36        "ti,nspire-clp",
  37        NULL,
  38};
  39
  40static void __init nspire_map_io(void)
  41{
  42        debug_ll_io_init();
  43}
  44
  45static struct clcd_board nspire_clcd_data = {
  46        .name           = "LCD",
  47        .caps           = CLCD_CAP_5551 | CLCD_CAP_565,
  48        .check          = clcdfb_check,
  49        .decode         = clcdfb_decode,
  50        .setup          = nspire_clcd_setup,
  51        .mmap           = nspire_clcd_mmap,
  52        .remove         = nspire_clcd_remove,
  53};
  54
  55
  56static struct of_dev_auxdata nspire_auxdata[] __initdata = {
  57        OF_DEV_AUXDATA("arm,pl111", NSPIRE_LCD_PHYS_BASE,
  58                        NULL, &nspire_clcd_data),
  59        { }
  60};
  61
  62static void __init nspire_init(void)
  63{
  64        of_platform_populate(NULL, of_default_bus_match_table,
  65                        nspire_auxdata, NULL);
  66}
  67
  68static void __init nspire_init_time(void)
  69{
  70        of_clk_init(NULL);
  71        clocksource_of_init();
  72}
  73
  74static void nspire_restart(char mode, const char *cmd)
  75{
  76        void __iomem *base = ioremap(NSPIRE_MISC_PHYS_BASE, SZ_4K);
  77        if (!base)
  78                return;
  79
  80        writel(2, base + NSPIRE_MISC_HWRESET);
  81}
  82
  83DT_MACHINE_START(NSPIRE, "TI-NSPIRE")
  84        .dt_compat      = nspire_dt_match,
  85        .map_io         = nspire_map_io,
  86        .init_time      = nspire_init_time,
  87        .init_machine   = nspire_init,
  88        .restart        = nspire_restart,
  89MACHINE_END
  90