blob: 046b213efd5b6329a702d3502d7a60d95ebb7c17 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * linux/arch/arm/mach-sa1100/hackkit.c
3 *
4 * Copyright (C) 2002 Stefan Eletzhofer <stefan.eletzhofer@eletztrick.de>
5 *
6 * This file contains all HackKit tweaks. Based on original work from
7 * Nicolas Pitre's assabet fixes
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 *
13 */
14#include <linux/init.h>
15#include <linux/kernel.h>
16#include <linux/sched.h>
17#include <linux/tty.h>
18#include <linux/module.h>
19#include <linux/errno.h>
20#include <linux/cpufreq.h>
21#include <linux/serial_core.h>
22#include <linux/mtd/mtd.h>
23#include <linux/mtd/partitions.h>
24
25#include <asm/hardware.h>
26#include <asm/mach-types.h>
27#include <asm/setup.h>
28#include <asm/page.h>
29#include <asm/pgtable.h>
30#include <asm/irq.h>
31
32#include <asm/mach/arch.h>
33#include <asm/mach/flash.h>
34#include <asm/mach/map.h>
35#include <asm/mach/irq.h>
36#include <asm/mach/serial_sa1100.h>
37
38#include "generic.h"
39
40/**********************************************************************
41 * prototypes
42 */
43
44/* init funcs */
45static void __init hackkit_map_io(void);
46
47static u_int hackkit_get_mctrl(struct uart_port *port);
48static void hackkit_set_mctrl(struct uart_port *port, u_int mctrl);
49static void hackkit_uart_pm(struct uart_port *port, u_int state, u_int oldstate);
50
51/**********************************************************************
52 * global data
53 */
54
55/**********************************************************************
56 * static data
57 */
58
59static struct map_desc hackkit_io_desc[] __initdata = {
Deepak Saxena92519d82005-10-28 15:19:04 +010060 { /* Flash bank 0 */
61 .virtual = 0xe8000000,
62 .pfn = __phys_to_pfn(0x00000000),
63 .length = 0x01000000,
64 .type = MT_DEVICE
65 },
Linus Torvalds1da177e2005-04-16 15:20:36 -070066};
67
68static struct sa1100_port_fns hackkit_port_fns __initdata = {
69 .set_mctrl = hackkit_set_mctrl,
70 .get_mctrl = hackkit_get_mctrl,
71 .pm = hackkit_uart_pm,
72};
73
74/**********************************************************************
75 * Static functions
76 */
77
78static void __init hackkit_map_io(void)
79{
80 sa1100_map_io();
81 iotable_init(hackkit_io_desc, ARRAY_SIZE(hackkit_io_desc));
82
83 sa1100_register_uart_fns(&hackkit_port_fns);
84 sa1100_register_uart(0, 1); /* com port */
85 sa1100_register_uart(1, 2);
86 sa1100_register_uart(2, 3); /* radio module */
87
88 Ser1SDCR0 |= SDCR0_SUS;
89}
90
91/**
92 * hackkit_uart_pm - powermgmt callback function for system 3 UART
93 * @port: uart port structure
94 * @state: pm state
95 * @oldstate: old pm state
96 *
97 */
98static void hackkit_uart_pm(struct uart_port *port, u_int state, u_int oldstate)
99{
100 /* TODO: switch on/off uart in powersave mode */
101}
102
103/*
104 * Note! this can be called from IRQ context.
105 * FIXME: No modem ctrl lines yet.
106 */
107static void hackkit_set_mctrl(struct uart_port *port, u_int mctrl)
108{
109#if 0
110 if (port->mapbase == _Ser1UTCR0) {
111 u_int set = 0, clear = 0;
112
113 if (mctrl & TIOCM_RTS)
114 set |= PT_CTRL2_RS1_RTS;
115 else
116 clear |= PT_CTRL2_RS1_RTS;
117
118 if (mctrl & TIOCM_DTR)
119 set |= PT_CTRL2_RS1_DTR;
120 else
121 clear |= PT_CTRL2_RS1_DTR;
122
123 PTCTRL2_clear(clear);
124 PTCTRL2_set(set);
125 }
126#endif
127}
128
129static u_int hackkit_get_mctrl(struct uart_port *port)
130{
131 u_int ret = 0;
132#if 0
133 u_int irqsr = PT_IRQSR;
134
135 /* need 2 reads to read current value */
136 irqsr = PT_IRQSR;
137
138 /* TODO: check IRQ source register for modem/com
139 status lines and set them correctly. */
140#endif
141
142 ret = TIOCM_CD | TIOCM_CTS | TIOCM_DSR;
143
144 return ret;
145}
146
147static struct mtd_partition hackkit_partitions[] = {
148 {
149 .name = "BLOB",
150 .size = 0x00040000,
151 .offset = 0x00000000,
152 .mask_flags = MTD_WRITEABLE, /* force read-only */
153 }, {
154 .name = "config",
155 .size = 0x00040000,
156 .offset = MTDPART_OFS_APPEND,
157 }, {
158 .name = "kernel",
159 .size = 0x00100000,
160 .offset = MTDPART_OFS_APPEND,
161 }, {
162 .name = "initrd",
163 .size = 0x00180000,
164 .offset = MTDPART_OFS_APPEND,
165 }, {
166 .name = "rootfs",
167 .size = 0x700000,
168 .offset = MTDPART_OFS_APPEND,
169 }, {
170 .name = "data",
171 .size = MTDPART_SIZ_FULL,
172 .offset = MTDPART_OFS_APPEND,
173 }
174};
175
176static struct flash_platform_data hackkit_flash_data = {
177 .map_name = "cfi_probe",
178 .parts = hackkit_partitions,
179 .nr_parts = ARRAY_SIZE(hackkit_partitions),
180};
181
182static struct resource hackkit_flash_resource = {
183 .start = SA1100_CS0_PHYS,
184 .end = SA1100_CS0_PHYS + SZ_32M,
185 .flags = IORESOURCE_MEM,
186};
187
188static void __init hackkit_init(void)
189{
190 sa11x0_set_flash_data(&hackkit_flash_data, &hackkit_flash_resource, 1);
191}
192
193/**********************************************************************
194 * Exported Functions
195 */
196
197MACHINE_START(HACKKIT, "HackKit Cpu Board")
Russell Kinge9dea0c2005-07-03 17:38:58 +0100198 .phys_io = 0x80000000,
199 .io_pg_offst = ((0xf8000000) >> 18) & 0xfffc,
200 .boot_params = 0xc0000100,
201 .map_io = hackkit_map_io,
202 .init_irq = sa1100_init_irq,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700203 .timer = &sa1100_timer,
204 .init_machine = hackkit_init,
205MACHINE_END