1 // SPDX-License-Identifier: GPL-2.0-only
3 * System Specific setup for Soekris net5501
4 * At the moment this means setup of GPIO control of LEDs and buttons
7 * Copyright (C) 2008-2009 Tower Technologies
15 #include <linux/kernel.h>
16 #include <linux/init.h>
18 #include <linux/string.h>
19 #include <linux/input.h>
20 #include <linux/gpio/machine.h>
21 #include <linux/gpio/property.h>
23 #include <asm/geode.h>
25 #include "geode-common.h"
27 #define BIOS_REGION_BASE 0xffff0000
28 #define BIOS_REGION_SIZE 0x00010000
30 static const struct geode_led net5501_leds[] __initconst = {
34 static void __init register_net5501(void)
36 geode_create_restart_key(24);
37 geode_create_leds("net5501", net5501_leds, ARRAY_SIZE(net5501_leds));
40 struct net5501_board {
46 static struct net5501_board __initdata boards[] = {
47 { 0xb7b, 7, "net5501" }, /* net5501 v1.33/1.33c */
48 { 0xb1f, 7, "net5501" }, /* net5501 v1.32i */
51 static bool __init net5501_present(void)
54 unsigned char *rombase, *bios;
57 rombase = ioremap(BIOS_REGION_BASE, BIOS_REGION_SIZE - 1);
59 printk(KERN_ERR "%s: failed to get rombase\n", KBUILD_MODNAME);
63 bios = rombase + 0x20; /* null terminated */
65 if (memcmp(bios, "comBIOS", 7))
68 for (i = 0; i < ARRAY_SIZE(boards); i++) {
69 unsigned char *model = rombase + boards[i].offset;
71 if (!memcmp(model, boards[i].sig, boards[i].len)) {
72 printk(KERN_INFO "%s: system is recognized as \"%s\"\n",
73 KBUILD_MODNAME, model);
85 static int __init net5501_init(void)
90 if (!net5501_present())
97 device_initcall(net5501_init);