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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firebee.c (2289B)

      1// SPDX-License-Identifier: GPL-2.0
      2/***************************************************************************/
      3
      4/*
      5 *	firebee.c -- extra startup code support for the FireBee boards
      6 *
      7 *	Copyright (C) 2011, Greg Ungerer (gerg@snapgear.com)
      8 */
      9
     10/***************************************************************************/
     11
     12#include <linux/kernel.h>
     13#include <linux/init.h>
     14#include <linux/io.h>
     15#include <linux/platform_device.h>
     16#include <linux/mtd/mtd.h>
     17#include <linux/mtd/partitions.h>
     18#include <linux/mtd/physmap.h>
     19#include <asm/coldfire.h>
     20#include <asm/mcfsim.h>
     21
     22/***************************************************************************/
     23
     24/*
     25 *	8MB of NOR flash fitted to the FireBee board.
     26 */
     27#define	FLASH_PHYS_ADDR		0xe0000000	/* Physical address of flash */
     28#define	FLASH_PHYS_SIZE		0x00800000	/* Size of flash */
     29
     30#define	PART_BOOT_START		0x00000000	/* Start at bottom of flash */
     31#define	PART_BOOT_SIZE		0x00040000	/* 256k in size */
     32#define	PART_IMAGE_START	0x00040000	/* Start after boot loader */
     33#define	PART_IMAGE_SIZE		0x006c0000	/* Most of flash */
     34#define	PART_FPGA_START		0x00700000	/* Start at offset 7MB */
     35#define	PART_FPGA_SIZE		0x00100000	/* 1MB in size */
     36
     37static struct mtd_partition firebee_flash_parts[] = {
     38	{
     39		.name	= "dBUG",
     40		.offset	= PART_BOOT_START,
     41		.size	= PART_BOOT_SIZE,
     42	},
     43	{
     44		.name	= "FPGA",
     45		.offset	= PART_FPGA_START,
     46		.size	= PART_FPGA_SIZE,
     47	},
     48	{
     49		.name	= "image",
     50		.offset	= PART_IMAGE_START,
     51		.size	= PART_IMAGE_SIZE,
     52	},
     53};
     54
     55static struct physmap_flash_data firebee_flash_data = {
     56	.width		= 2,
     57	.nr_parts	= ARRAY_SIZE(firebee_flash_parts),
     58	.parts		= firebee_flash_parts,
     59};
     60
     61static struct resource firebee_flash_resource = {
     62	.start		= FLASH_PHYS_ADDR,
     63	.end		= FLASH_PHYS_ADDR + FLASH_PHYS_SIZE,
     64	.flags		= IORESOURCE_MEM,
     65};
     66
     67static struct platform_device firebee_flash = {
     68	.name		= "physmap-flash",
     69	.id		= 0,
     70	.dev		= {
     71		.platform_data = &firebee_flash_data,
     72	},
     73	.num_resources	= 1,
     74	.resource	= &firebee_flash_resource,
     75};
     76
     77/***************************************************************************/
     78
     79static int __init init_firebee(void)
     80{
     81	platform_device_register(&firebee_flash);
     82	return 0;
     83}
     84
     85arch_initcall(init_firebee);
     86
     87/***************************************************************************/