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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 | ||
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 */ | |
45 | static void __init hackkit_map_io(void); | |
46 | ||
47 | static u_int hackkit_get_mctrl(struct uart_port *port); | |
48 | static void hackkit_set_mctrl(struct uart_port *port, u_int mctrl); | |
49 | static 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 | ||
59 | static struct map_desc hackkit_io_desc[] __initdata = { | |
92519d82 DS |
60 | { /* Flash bank 0 */ |
61 | .virtual = 0xe8000000, | |
62 | .pfn = __phys_to_pfn(0x00000000), | |
63 | .length = 0x01000000, | |
64 | .type = MT_DEVICE | |
65 | }, | |
1da177e4 LT |
66 | }; |
67 | ||
68 | static 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 | ||
78 | static 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 | */ | |
98 | static 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 | */ | |
107 | static 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 | ||
129 | static 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 | ||
147 | static 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 | ||
176 | static 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 | ||
182 | static struct resource hackkit_flash_resource = { | |
183 | .start = SA1100_CS0_PHYS, | |
184 | .end = SA1100_CS0_PHYS + SZ_32M, | |
185 | .flags = IORESOURCE_MEM, | |
186 | }; | |
187 | ||
188 | static 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 | ||
197 | MACHINE_START(HACKKIT, "HackKit Cpu Board") | |
e9dea0c6 RK |
198 | .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, | |
1da177e4 LT |
203 | .timer = &sa1100_timer, |
204 | .init_machine = hackkit_init, | |
205 | MACHINE_END |