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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dev-uart.c (1770B)

      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) 2008 Maxime Bizon <mbizon@freebox.fr>
      7 */
      8
      9#include <linux/init.h>
     10#include <linux/kernel.h>
     11#include <linux/platform_device.h>
     12#include <bcm63xx_cpu.h>
     13
     14static struct resource uart0_resources[] = {
     15	{
     16		/* start & end filled at runtime */
     17		.flags		= IORESOURCE_MEM,
     18	},
     19	{
     20		/* start filled at runtime */
     21		.flags		= IORESOURCE_IRQ,
     22	},
     23};
     24
     25static struct resource uart1_resources[] = {
     26	{
     27		/* start & end filled at runtime */
     28		.flags		= IORESOURCE_MEM,
     29	},
     30	{
     31		/* start filled at runtime */
     32		.flags		= IORESOURCE_IRQ,
     33	},
     34};
     35
     36static struct platform_device bcm63xx_uart_devices[] = {
     37	{
     38		.name		= "bcm63xx_uart",
     39		.id		= 0,
     40		.num_resources	= ARRAY_SIZE(uart0_resources),
     41		.resource	= uart0_resources,
     42	},
     43
     44	{
     45		.name		= "bcm63xx_uart",
     46		.id		= 1,
     47		.num_resources	= ARRAY_SIZE(uart1_resources),
     48		.resource	= uart1_resources,
     49	}
     50};
     51
     52int __init bcm63xx_uart_register(unsigned int id)
     53{
     54	if (id >= ARRAY_SIZE(bcm63xx_uart_devices))
     55		return -ENODEV;
     56
     57	if (id == 1 && (!BCMCPU_IS_3368() && !BCMCPU_IS_6358() &&
     58		!BCMCPU_IS_6368()))
     59		return -ENODEV;
     60
     61	if (id == 0) {
     62		uart0_resources[0].start = bcm63xx_regset_address(RSET_UART0);
     63		uart0_resources[0].end = uart0_resources[0].start +
     64			RSET_UART_SIZE - 1;
     65		uart0_resources[1].start = bcm63xx_get_irq_number(IRQ_UART0);
     66	}
     67
     68	if (id == 1) {
     69		uart1_resources[0].start = bcm63xx_regset_address(RSET_UART1);
     70		uart1_resources[0].end = uart1_resources[0].start +
     71			RSET_UART_SIZE - 1;
     72		uart1_resources[1].start = bcm63xx_get_irq_number(IRQ_UART1);
     73	}
     74
     75	return platform_device_register(&bcm63xx_uart_devices[id]);
     76}