cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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ip32-platform.c (3051B)

      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		.access_type = ds1685_reg_direct,
    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);