88 строки
2.2 KiB
C
88 строки
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/***************************************************************************/
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/*
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* firebee.c -- extra startup code support for the FireBee boards
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*
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* Copyright (C) 2011, Greg Ungerer (gerg@snapgear.com)
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*/
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/***************************************************************************/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/io.h>
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#include <linux/platform_device.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/mtd/physmap.h>
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#include <asm/coldfire.h>
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#include <asm/mcfsim.h>
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/***************************************************************************/
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/*
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* 8MB of NOR flash fitted to the FireBee board.
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*/
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#define FLASH_PHYS_ADDR 0xe0000000 /* Physical address of flash */
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#define FLASH_PHYS_SIZE 0x00800000 /* Size of flash */
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#define PART_BOOT_START 0x00000000 /* Start at bottom of flash */
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#define PART_BOOT_SIZE 0x00040000 /* 256k in size */
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#define PART_IMAGE_START 0x00040000 /* Start after boot loader */
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#define PART_IMAGE_SIZE 0x006c0000 /* Most of flash */
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#define PART_FPGA_START 0x00700000 /* Start at offset 7MB */
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#define PART_FPGA_SIZE 0x00100000 /* 1MB in size */
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static struct mtd_partition firebee_flash_parts[] = {
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{
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.name = "dBUG",
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.offset = PART_BOOT_START,
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.size = PART_BOOT_SIZE,
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},
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{
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.name = "FPGA",
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.offset = PART_FPGA_START,
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.size = PART_FPGA_SIZE,
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},
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{
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.name = "image",
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.offset = PART_IMAGE_START,
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.size = PART_IMAGE_SIZE,
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},
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};
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static struct physmap_flash_data firebee_flash_data = {
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.width = 2,
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.nr_parts = ARRAY_SIZE(firebee_flash_parts),
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.parts = firebee_flash_parts,
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};
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static struct resource firebee_flash_resource = {
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.start = FLASH_PHYS_ADDR,
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.end = FLASH_PHYS_ADDR + FLASH_PHYS_SIZE,
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.flags = IORESOURCE_MEM,
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};
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static struct platform_device firebee_flash = {
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.name = "physmap-flash",
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.id = 0,
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.dev = {
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.platform_data = &firebee_flash_data,
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},
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.num_resources = 1,
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.resource = &firebee_flash_resource,
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};
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/***************************************************************************/
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static int __init init_firebee(void)
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{
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platform_device_register(&firebee_flash);
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return 0;
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}
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arch_initcall(init_firebee);
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/***************************************************************************/
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