1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun /***************************************************************************/
3*4882a593Smuzhiyun
4*4882a593Smuzhiyun /*
5*4882a593Smuzhiyun * firebee.c -- extra startup code support for the FireBee boards
6*4882a593Smuzhiyun *
7*4882a593Smuzhiyun * Copyright (C) 2011, Greg Ungerer (gerg@snapgear.com)
8*4882a593Smuzhiyun */
9*4882a593Smuzhiyun
10*4882a593Smuzhiyun /***************************************************************************/
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun #include <linux/kernel.h>
13*4882a593Smuzhiyun #include <linux/init.h>
14*4882a593Smuzhiyun #include <linux/io.h>
15*4882a593Smuzhiyun #include <linux/platform_device.h>
16*4882a593Smuzhiyun #include <linux/mtd/mtd.h>
17*4882a593Smuzhiyun #include <linux/mtd/partitions.h>
18*4882a593Smuzhiyun #include <linux/mtd/physmap.h>
19*4882a593Smuzhiyun #include <asm/coldfire.h>
20*4882a593Smuzhiyun #include <asm/mcfsim.h>
21*4882a593Smuzhiyun
22*4882a593Smuzhiyun /***************************************************************************/
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun /*
25*4882a593Smuzhiyun * 8MB of NOR flash fitted to the FireBee board.
26*4882a593Smuzhiyun */
27*4882a593Smuzhiyun #define FLASH_PHYS_ADDR 0xe0000000 /* Physical address of flash */
28*4882a593Smuzhiyun #define FLASH_PHYS_SIZE 0x00800000 /* Size of flash */
29*4882a593Smuzhiyun
30*4882a593Smuzhiyun #define PART_BOOT_START 0x00000000 /* Start at bottom of flash */
31*4882a593Smuzhiyun #define PART_BOOT_SIZE 0x00040000 /* 256k in size */
32*4882a593Smuzhiyun #define PART_IMAGE_START 0x00040000 /* Start after boot loader */
33*4882a593Smuzhiyun #define PART_IMAGE_SIZE 0x006c0000 /* Most of flash */
34*4882a593Smuzhiyun #define PART_FPGA_START 0x00700000 /* Start at offset 7MB */
35*4882a593Smuzhiyun #define PART_FPGA_SIZE 0x00100000 /* 1MB in size */
36*4882a593Smuzhiyun
37*4882a593Smuzhiyun static struct mtd_partition firebee_flash_parts[] = {
38*4882a593Smuzhiyun {
39*4882a593Smuzhiyun .name = "dBUG",
40*4882a593Smuzhiyun .offset = PART_BOOT_START,
41*4882a593Smuzhiyun .size = PART_BOOT_SIZE,
42*4882a593Smuzhiyun },
43*4882a593Smuzhiyun {
44*4882a593Smuzhiyun .name = "FPGA",
45*4882a593Smuzhiyun .offset = PART_FPGA_START,
46*4882a593Smuzhiyun .size = PART_FPGA_SIZE,
47*4882a593Smuzhiyun },
48*4882a593Smuzhiyun {
49*4882a593Smuzhiyun .name = "image",
50*4882a593Smuzhiyun .offset = PART_IMAGE_START,
51*4882a593Smuzhiyun .size = PART_IMAGE_SIZE,
52*4882a593Smuzhiyun },
53*4882a593Smuzhiyun };
54*4882a593Smuzhiyun
55*4882a593Smuzhiyun static struct physmap_flash_data firebee_flash_data = {
56*4882a593Smuzhiyun .width = 2,
57*4882a593Smuzhiyun .nr_parts = ARRAY_SIZE(firebee_flash_parts),
58*4882a593Smuzhiyun .parts = firebee_flash_parts,
59*4882a593Smuzhiyun };
60*4882a593Smuzhiyun
61*4882a593Smuzhiyun static struct resource firebee_flash_resource = {
62*4882a593Smuzhiyun .start = FLASH_PHYS_ADDR,
63*4882a593Smuzhiyun .end = FLASH_PHYS_ADDR + FLASH_PHYS_SIZE,
64*4882a593Smuzhiyun .flags = IORESOURCE_MEM,
65*4882a593Smuzhiyun };
66*4882a593Smuzhiyun
67*4882a593Smuzhiyun static struct platform_device firebee_flash = {
68*4882a593Smuzhiyun .name = "physmap-flash",
69*4882a593Smuzhiyun .id = 0,
70*4882a593Smuzhiyun .dev = {
71*4882a593Smuzhiyun .platform_data = &firebee_flash_data,
72*4882a593Smuzhiyun },
73*4882a593Smuzhiyun .num_resources = 1,
74*4882a593Smuzhiyun .resource = &firebee_flash_resource,
75*4882a593Smuzhiyun };
76*4882a593Smuzhiyun
77*4882a593Smuzhiyun /***************************************************************************/
78*4882a593Smuzhiyun
init_firebee(void)79*4882a593Smuzhiyun static int __init init_firebee(void)
80*4882a593Smuzhiyun {
81*4882a593Smuzhiyun platform_device_register(&firebee_flash);
82*4882a593Smuzhiyun return 0;
83*4882a593Smuzhiyun }
84*4882a593Smuzhiyun
85*4882a593Smuzhiyun arch_initcall(init_firebee);
86*4882a593Smuzhiyun
87*4882a593Smuzhiyun /***************************************************************************/
88