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1da177e4 LT |
1 | /* |
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 | ||
1da177e4 LT |
25 | #include <asm/mach-types.h> |
26 | #include <asm/setup.h> | |
27 | #include <asm/page.h> | |
28 | #include <asm/pgtable.h> | |
1da177e4 LT |
29 | |
30 | #include <asm/mach/arch.h> | |
31 | #include <asm/mach/flash.h> | |
32 | #include <asm/mach/map.h> | |
33 | #include <asm/mach/irq.h> | |
34 | #include <asm/mach/serial_sa1100.h> | |
35 | ||
f314f33b RH |
36 | #include <mach/hardware.h> |
37 | #include <mach/irqs.h> | |
38 | ||
1da177e4 LT |
39 | #include "generic.h" |
40 | ||
41 | /********************************************************************** | |
42 | * prototypes | |
43 | */ | |
44 | ||
45 | /* init funcs */ | |
46 | static void __init hackkit_map_io(void); | |
47 | ||
48 | static u_int hackkit_get_mctrl(struct uart_port *port); | |
49 | static void hackkit_set_mctrl(struct uart_port *port, u_int mctrl); | |
50 | static void hackkit_uart_pm(struct uart_port *port, u_int state, u_int oldstate); | |
51 | ||
52 | /********************************************************************** | |
53 | * global data | |
54 | */ | |
55 | ||
56 | /********************************************************************** | |
57 | * static data | |
58 | */ | |
59 | ||
60 | static struct map_desc hackkit_io_desc[] __initdata = { | |
92519d82 DS |
61 | { /* Flash bank 0 */ |
62 | .virtual = 0xe8000000, | |
63 | .pfn = __phys_to_pfn(0x00000000), | |
64 | .length = 0x01000000, | |
65 | .type = MT_DEVICE | |
66 | }, | |
1da177e4 LT |
67 | }; |
68 | ||
69 | static struct sa1100_port_fns hackkit_port_fns __initdata = { | |
70 | .set_mctrl = hackkit_set_mctrl, | |
71 | .get_mctrl = hackkit_get_mctrl, | |
72 | .pm = hackkit_uart_pm, | |
73 | }; | |
74 | ||
75 | /********************************************************************** | |
76 | * Static functions | |
77 | */ | |
78 | ||
79 | static void __init hackkit_map_io(void) | |
80 | { | |
81 | sa1100_map_io(); | |
82 | iotable_init(hackkit_io_desc, ARRAY_SIZE(hackkit_io_desc)); | |
83 | ||
84 | sa1100_register_uart_fns(&hackkit_port_fns); | |
85 | sa1100_register_uart(0, 1); /* com port */ | |
86 | sa1100_register_uart(1, 2); | |
87 | sa1100_register_uart(2, 3); /* radio module */ | |
88 | ||
89 | Ser1SDCR0 |= SDCR0_SUS; | |
90 | } | |
91 | ||
92 | /** | |
93 | * hackkit_uart_pm - powermgmt callback function for system 3 UART | |
94 | * @port: uart port structure | |
95 | * @state: pm state | |
96 | * @oldstate: old pm state | |
97 | * | |
98 | */ | |
99 | static void hackkit_uart_pm(struct uart_port *port, u_int state, u_int oldstate) | |
100 | { | |
101 | /* TODO: switch on/off uart in powersave mode */ | |
102 | } | |
103 | ||
104 | /* | |
105 | * Note! this can be called from IRQ context. | |
106 | * FIXME: No modem ctrl lines yet. | |
107 | */ | |
108 | static void hackkit_set_mctrl(struct uart_port *port, u_int mctrl) | |
109 | { | |
110 | #if 0 | |
111 | if (port->mapbase == _Ser1UTCR0) { | |
112 | u_int set = 0, clear = 0; | |
113 | ||
114 | if (mctrl & TIOCM_RTS) | |
115 | set |= PT_CTRL2_RS1_RTS; | |
116 | else | |
117 | clear |= PT_CTRL2_RS1_RTS; | |
118 | ||
119 | if (mctrl & TIOCM_DTR) | |
120 | set |= PT_CTRL2_RS1_DTR; | |
121 | else | |
122 | clear |= PT_CTRL2_RS1_DTR; | |
123 | ||
124 | PTCTRL2_clear(clear); | |
125 | PTCTRL2_set(set); | |
126 | } | |
127 | #endif | |
128 | } | |
129 | ||
130 | static u_int hackkit_get_mctrl(struct uart_port *port) | |
131 | { | |
132 | u_int ret = 0; | |
133 | #if 0 | |
134 | u_int irqsr = PT_IRQSR; | |
135 | ||
136 | /* need 2 reads to read current value */ | |
137 | irqsr = PT_IRQSR; | |
138 | ||
139 | /* TODO: check IRQ source register for modem/com | |
140 | status lines and set them correctly. */ | |
141 | #endif | |
142 | ||
143 | ret = TIOCM_CD | TIOCM_CTS | TIOCM_DSR; | |
144 | ||
145 | return ret; | |
146 | } | |
147 | ||
148 | static struct mtd_partition hackkit_partitions[] = { | |
149 | { | |
150 | .name = "BLOB", | |
151 | .size = 0x00040000, | |
152 | .offset = 0x00000000, | |
153 | .mask_flags = MTD_WRITEABLE, /* force read-only */ | |
154 | }, { | |
155 | .name = "config", | |
156 | .size = 0x00040000, | |
157 | .offset = MTDPART_OFS_APPEND, | |
158 | }, { | |
159 | .name = "kernel", | |
160 | .size = 0x00100000, | |
161 | .offset = MTDPART_OFS_APPEND, | |
162 | }, { | |
163 | .name = "initrd", | |
164 | .size = 0x00180000, | |
165 | .offset = MTDPART_OFS_APPEND, | |
166 | }, { | |
167 | .name = "rootfs", | |
168 | .size = 0x700000, | |
169 | .offset = MTDPART_OFS_APPEND, | |
170 | }, { | |
171 | .name = "data", | |
172 | .size = MTDPART_SIZ_FULL, | |
173 | .offset = MTDPART_OFS_APPEND, | |
174 | } | |
175 | }; | |
176 | ||
177 | static struct flash_platform_data hackkit_flash_data = { | |
178 | .map_name = "cfi_probe", | |
179 | .parts = hackkit_partitions, | |
180 | .nr_parts = ARRAY_SIZE(hackkit_partitions), | |
181 | }; | |
182 | ||
a181099e RK |
183 | static struct resource hackkit_flash_resource = |
184 | DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M); | |
1da177e4 LT |
185 | |
186 | static void __init hackkit_init(void) | |
187 | { | |
7a5b4e16 | 188 | sa11x0_register_mtd(&hackkit_flash_data, &hackkit_flash_resource, 1); |
1da177e4 LT |
189 | } |
190 | ||
191 | /********************************************************************** | |
192 | * Exported Functions | |
193 | */ | |
194 | ||
195 | MACHINE_START(HACKKIT, "HackKit Cpu Board") | |
17f4425d | 196 | .atag_offset = 0x100, |
e9dea0c6 | 197 | .map_io = hackkit_map_io, |
f314f33b | 198 | .nr_irqs = SA1100_NR_IRQS, |
e9dea0c6 | 199 | .init_irq = sa1100_init_irq, |
1da177e4 LT |
200 | .timer = &sa1100_timer, |
201 | .init_machine = hackkit_init, | |
d9ca5839 | 202 | .restart = sa11x0_restart, |
1da177e4 | 203 | MACHINE_END |