1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * linux/arch/arm/mach-sa1100/hackkit.c
4 *
5 * Copyright (C) 2002 Stefan Eletzhofer <stefan.eletzhofer@eletztrick.de>
6 *
7 * This file contains all HackKit tweaks. Based on original work from
8 * Nicolas Pitre's assabet fixes
9 */
10#include <linux/init.h>
11#include <linux/kernel.h>
12#include <linux/sched.h>
13#include <linux/tty.h>
14#include <linux/module.h>
15#include <linux/errno.h>
16#include <linux/cpufreq.h>
17#include <linux/platform_data/sa11x0-serial.h>
18#include <linux/serial_core.h>
19#include <linux/mtd/mtd.h>
20#include <linux/mtd/partitions.h>
21#include <linux/tty.h>
22#include <linux/gpio.h>
23#include <linux/leds.h>
24#include <linux/platform_device.h>
25#include <linux/pgtable.h>
26
27#include <asm/mach-types.h>
28#include <asm/setup.h>
29#include <asm/page.h>
30
31#include <asm/mach/arch.h>
32#include <asm/mach/flash.h>
33#include <asm/mach/map.h>
34#include <asm/mach/irq.h>
35
36#include <mach/hardware.h>
37#include <mach/irqs.h>
38
39#include "generic.h"
40
41/**********************************************************************
42 *  prototypes
43 */
44
45/* init funcs */
46static void __init hackkit_map_io(void);
47
48static void hackkit_uart_pm(struct uart_port *port, u_int state, u_int oldstate);
49
50/**********************************************************************
51 *  global data
52 */
53
54/**********************************************************************
55 *  static data
56 */
57
58static struct map_desc hackkit_io_desc[] __initdata = {
59	{	/* Flash bank 0 */
60		.virtual	=  0xe8000000,
61		.pfn		= __phys_to_pfn(0x00000000),
62		.length		= 0x01000000,
63		.type		= MT_DEVICE
64	},
65};
66
67static struct sa1100_port_fns hackkit_port_fns __initdata = {
68	.pm		= hackkit_uart_pm,
69};
70
71/**********************************************************************
72 *  Static functions
73 */
74
75static void __init hackkit_map_io(void)
76{
77	sa1100_map_io();
78	iotable_init(hackkit_io_desc, ARRAY_SIZE(hackkit_io_desc));
79
80	sa1100_register_uart_fns(&hackkit_port_fns);
81	sa1100_register_uart(0, 1);	/* com port */
82	sa1100_register_uart(1, 2);
83	sa1100_register_uart(2, 3);	/* radio module */
84
85	Ser1SDCR0 |= SDCR0_SUS;
86}
87
88/**
89 *	hackkit_uart_pm - powermgmt callback function for system 3 UART
90 *	@port: uart port structure
91 *	@state: pm state
92 *	@oldstate: old pm state
93 *
94 */
95static void hackkit_uart_pm(struct uart_port *port, u_int state, u_int oldstate)
96{
97	/* TODO: switch on/off uart in powersave mode */
98}
99
100static struct mtd_partition hackkit_partitions[] = {
101	{
102		.name		= "BLOB",
103		.size		= 0x00040000,
104		.offset		= 0x00000000,
105		.mask_flags	= MTD_WRITEABLE,  /* force read-only */
106	}, {
107		.name		= "config",
108		.size		= 0x00040000,
109		.offset		= MTDPART_OFS_APPEND,
110	}, {
111		.name		= "kernel",
112		.size		= 0x00100000,
113		.offset		= MTDPART_OFS_APPEND,
114	}, {
115		.name		= "initrd",
116		.size		= 0x00180000,
117		.offset		= MTDPART_OFS_APPEND,
118	}, {
119		.name		= "rootfs",
120		.size		= 0x700000,
121		.offset		= MTDPART_OFS_APPEND,
122	}, {
123		.name		= "data",
124		.size		= MTDPART_SIZ_FULL,
125		.offset		= MTDPART_OFS_APPEND,
126	}
127};
128
129static struct flash_platform_data hackkit_flash_data = {
130	.map_name	= "cfi_probe",
131	.parts		= hackkit_partitions,
132	.nr_parts	= ARRAY_SIZE(hackkit_partitions),
133};
134
135static struct resource hackkit_flash_resource =
136	DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M);
137
138/* LEDs */
139struct gpio_led hackkit_gpio_leds[] = {
140	{
141		.name			= "hackkit:red",
142		.default_trigger	= "cpu0",
143		.gpio			= 22,
144	},
145	{
146		.name			= "hackkit:green",
147		.default_trigger	= "heartbeat",
148		.gpio			= 23,
149	},
150};
151
152static struct gpio_led_platform_data hackkit_gpio_led_info = {
153	.leds		= hackkit_gpio_leds,
154	.num_leds	= ARRAY_SIZE(hackkit_gpio_leds),
155};
156
157static struct platform_device hackkit_leds = {
158	.name	= "leds-gpio",
159	.id	= -1,
160	.dev	= {
161		.platform_data	= &hackkit_gpio_led_info,
162	}
163};
164
165static void __init hackkit_init(void)
166{
167	sa11x0_register_mtd(&hackkit_flash_data, &hackkit_flash_resource, 1);
168	platform_device_register(&hackkit_leds);
169}
170
171/**********************************************************************
172 *  Exported Functions
173 */
174
175MACHINE_START(HACKKIT, "HackKit Cpu Board")
176	.atag_offset	= 0x100,
177	.map_io		= hackkit_map_io,
178	.nr_irqs	= SA1100_NR_IRQS,
179	.init_irq	= sa1100_init_irq,
180	.init_time	= sa1100_timer_init,
181	.init_machine	= hackkit_init,
182	.init_late	= sa11x0_init_late,
183	.restart	= sa11x0_restart,
184MACHINE_END
185