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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isa.c (1971B)

      1// SPDX-License-Identifier: GPL-2.0-only
      2/*
      3 *  linux/arch/arm/mach-footbridge/isa.c
      4 *
      5 *  Copyright (C) 2004 Russell King.
      6 */
      7#include <linux/init.h>
      8#include <linux/serial_8250.h>
      9
     10#include <asm/irq.h>
     11#include <asm/hardware/dec21285.h>
     12
     13#include "common.h"
     14
     15static struct resource rtc_resources[] = {
     16	[0] = {
     17		.start	= 0x70,
     18		.end	= 0x73,
     19		.flags	= IORESOURCE_IO,
     20	},
     21	[1] = {
     22		.start	= IRQ_ISA_RTC_ALARM,
     23		.end	= IRQ_ISA_RTC_ALARM,
     24		.flags	= IORESOURCE_IRQ,
     25	}
     26};
     27
     28static struct platform_device rtc_device = {
     29	.name		= "rtc_cmos",
     30	.id		= -1,
     31	.resource	= rtc_resources,
     32	.num_resources	= ARRAY_SIZE(rtc_resources),
     33};
     34
     35static struct resource serial_resources[] = {
     36	[0] = {
     37		.start	= 0x3f8,
     38		.end	= 0x3ff,
     39		.flags	= IORESOURCE_IO,
     40	},
     41	[1] = {
     42		.start	= 0x2f8,
     43		.end	= 0x2ff,
     44		.flags	= IORESOURCE_IO,
     45	},
     46};
     47
     48static struct plat_serial8250_port serial_platform_data[] = {
     49	{
     50		.iobase		= 0x3f8,
     51		.irq		= IRQ_ISA_UART,
     52		.uartclk	= 1843200,
     53		.regshift	= 0,
     54		.iotype		= UPIO_PORT,
     55		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
     56	},
     57	{
     58		.iobase		= 0x2f8,
     59		.irq		= IRQ_ISA_UART2,
     60		.uartclk	= 1843200,
     61		.regshift	= 0,
     62		.iotype		= UPIO_PORT,
     63		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
     64	},
     65	{ },
     66};
     67
     68static struct platform_device serial_device = {
     69	.name			= "serial8250",
     70	.id			= PLAT8250_DEV_PLATFORM,
     71	.dev			= {
     72		.platform_data	= serial_platform_data,
     73	},
     74	.resource		= serial_resources,
     75	.num_resources		= ARRAY_SIZE(serial_resources),
     76};
     77
     78static int __init footbridge_isa_init(void)
     79{
     80	int err = 0;
     81
     82	if (!footbridge_cfn_mode())
     83		return 0;
     84
     85	/* Personal server doesn't have RTC */
     86	if (!machine_is_personal_server()) {
     87		isa_rtc_init();
     88		err = platform_device_register(&rtc_device);
     89		if (err)
     90			printk(KERN_ERR "Unable to register RTC device: %d\n", err);
     91	}
     92	err = platform_device_register(&serial_device);
     93	if (err)
     94		printk(KERN_ERR "Unable to register serial device: %d\n", err);
     95	return 0;
     96}
     97
     98arch_initcall(footbridge_isa_init);