LXR linux/arch/mips/sgi-ip32/ip32-platform.c

   1/*
   2 * This file is subject to the terms and conditions of the GNU General Public
   3 * License.  See the file "COPYING" in the main directory of this archive
   4 * for more details.
   5 *
   6 * Copyright (C) 2007 Ralf Baechle (ralf@linux-mips.org)
   7 */
   8#include <linux/init.h>
   9#include <linux/platform_device.h>
  10#include <linux/serial_8250.h>
  11#include <linux/rtc/ds1685.h>
  12
  13#include <asm/ip32/mace.h>
  14#include <asm/ip32/ip32_ints.h>
  15
  16extern void ip32_prepare_poweroff(void);
  17
  18#define MACEISA_SERIAL1_OFFS   offsetof(struct sgi_mace, isa.serial1)
  19#define MACEISA_SERIAL2_OFFS   offsetof(struct sgi_mace, isa.serial2)
  20
  21#define MACE_PORT(offset,_irq)                                          \
  22{                                                                       \
  23        .mapbase        = MACE_BASE + offset,                           \
  24        .irq            = _irq,                                         \
  25        .uartclk        = 1843200,                                      \
  26        .iotype         = UPIO_MEM,                                     \
  27        .flags          = UPF_SKIP_TEST|UPF_IOREMAP,                    \
  28        .regshift       = 8,                                            \
  29}
  30
  31static struct plat_serial8250_port uart8250_data[] = {
  32        MACE_PORT(MACEISA_SERIAL1_OFFS, MACEISA_SERIAL1_IRQ),
  33        MACE_PORT(MACEISA_SERIAL2_OFFS, MACEISA_SERIAL2_IRQ),
  34        { },
  35};
  36
  37static struct platform_device uart8250_device = {
  38        .name                   = "serial8250",
  39        .id                     = PLAT8250_DEV_PLATFORM,
  40        .dev                    = {
  41                .platform_data  = uart8250_data,
  42        },
  43};
  44
  45static int __init uart8250_init(void)
  46{
  47        return platform_device_register(&uart8250_device);
  48}
  49
  50device_initcall(uart8250_init);
  51
  52static __init int meth_devinit(void)
  53{
  54        struct platform_device *pd;
  55        int ret;
  56
  57        pd = platform_device_alloc("meth", -1);
  58        if (!pd)
  59                return -ENOMEM;
  60
  61        ret = platform_device_add(pd);
  62        if (ret)
  63                platform_device_put(pd);
  64
  65        return ret;
  66}
  67
  68device_initcall(meth_devinit);
  69
  70static __init int sgio2audio_devinit(void)
  71{
  72        struct platform_device *pd;
  73        int ret;
  74
  75        pd = platform_device_alloc("sgio2audio", -1);
  76        if (!pd)
  77                return -ENOMEM;
  78
  79        ret = platform_device_add(pd);
  80        if (ret)
  81                platform_device_put(pd);
  82
  83        return ret;
  84}
  85
  86device_initcall(sgio2audio_devinit);
  87
  88static __init int sgio2btns_devinit(void)
  89{
  90        return IS_ERR(platform_device_register_simple("sgibtns", -1, NULL, 0));
  91}
  92
  93device_initcall(sgio2btns_devinit);
  94
  95#define MACE_RTC_RES_START (MACE_BASE + offsetof(struct sgi_mace, isa.rtc))
  96#define MACE_RTC_RES_END (MACE_RTC_RES_START + 32767)
  97
  98static struct resource ip32_rtc_resources[] = {
  99        {
 100                .start  = MACEISA_RTC_IRQ,
 101                .end    = MACEISA_RTC_IRQ,
 102                .flags  = IORESOURCE_IRQ
 103        }, {
 104                .start  = MACE_RTC_RES_START,
 105                .end    = MACE_RTC_RES_END,
 106                .flags  = IORESOURCE_MEM,
 107        }
 108};
 109
 110/* RTC registers on IP32 are each padded by 256 bytes (0x100). */
 111static struct ds1685_rtc_platform_data
 112ip32_rtc_platform_data[] = {
 113        {
 114                .regstep = 0x100,
 115                .bcd_mode = true,
 116                .no_irq = false,
 117                .uie_unsupported = false,
 118                .alloc_io_resources = true,
 119                .plat_prepare_poweroff = ip32_prepare_poweroff,
 120        },
 121};
 122
 123struct platform_device ip32_rtc_device = {
 124        .name                   = "rtc-ds1685",
 125        .id                     = -1,
 126        .dev                    = {
 127                .platform_data  = ip32_rtc_platform_data,
 128        },
 129        .num_resources          = ARRAY_SIZE(ip32_rtc_resources),
 130        .resource               = ip32_rtc_resources,
 131};
 132
 133static __init int sgio2_rtc_devinit(void)
 134{
 135        return platform_device_register(&ip32_rtc_device);
 136}
 137
 138device_initcall(sgio2_rtc_devinit);
 139