2 * linux/arch/arm/mach-sa1100/hackkit.c
4 * Copyright (C) 2002 Stefan Eletzhofer <stefan.eletzhofer@eletztrick.de>
6 * This file contains all HackKit tweaks. Based on original work from
7 * Nicolas Pitre's assabet fixes
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.
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>
25 #include <mach/hardware.h>
26 #include <asm/mach-types.h>
27 #include <asm/setup.h>
29 #include <asm/pgtable.h>
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>
40 /**********************************************************************
45 static void __init
hackkit_map_io(void);
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
);
51 /**********************************************************************
55 /**********************************************************************
59 static struct map_desc hackkit_io_desc
[] __initdata
= {
61 .virtual = 0xe8000000,
62 .pfn
= __phys_to_pfn(0x00000000),
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
,
74 /**********************************************************************
78 static void __init
hackkit_map_io(void)
81 iotable_init(hackkit_io_desc
, ARRAY_SIZE(hackkit_io_desc
));
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 */
88 Ser1SDCR0
|= SDCR0_SUS
;
92 * hackkit_uart_pm - powermgmt callback function for system 3 UART
93 * @port: uart port structure
95 * @oldstate: old pm state
98 static void hackkit_uart_pm(struct uart_port
*port
, u_int state
, u_int oldstate
)
100 /* TODO: switch on/off uart in powersave mode */
104 * Note! this can be called from IRQ context.
105 * FIXME: No modem ctrl lines yet.
107 static void hackkit_set_mctrl(struct uart_port
*port
, u_int mctrl
)
110 if (port
->mapbase
== _Ser1UTCR0
) {
111 u_int set
= 0, clear
= 0;
113 if (mctrl
& TIOCM_RTS
)
114 set
|= PT_CTRL2_RS1_RTS
;
116 clear
|= PT_CTRL2_RS1_RTS
;
118 if (mctrl
& TIOCM_DTR
)
119 set
|= PT_CTRL2_RS1_DTR
;
121 clear
|= PT_CTRL2_RS1_DTR
;
123 PTCTRL2_clear(clear
);
129 static u_int
hackkit_get_mctrl(struct uart_port
*port
)
133 u_int irqsr
= PT_IRQSR
;
135 /* need 2 reads to read current value */
138 /* TODO: check IRQ source register for modem/com
139 status lines and set them correctly. */
142 ret
= TIOCM_CD
| TIOCM_CTS
| TIOCM_DSR
;
147 static struct mtd_partition hackkit_partitions
[] = {
151 .offset
= 0x00000000,
152 .mask_flags
= MTD_WRITEABLE
, /* force read-only */
156 .offset
= MTDPART_OFS_APPEND
,
160 .offset
= MTDPART_OFS_APPEND
,
164 .offset
= MTDPART_OFS_APPEND
,
168 .offset
= MTDPART_OFS_APPEND
,
171 .size
= MTDPART_SIZ_FULL
,
172 .offset
= MTDPART_OFS_APPEND
,
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
),
182 static struct resource hackkit_flash_resource
= {
183 .start
= SA1100_CS0_PHYS
,
184 .end
= SA1100_CS0_PHYS
+ SZ_32M
,
185 .flags
= IORESOURCE_MEM
,
188 static void __init
hackkit_init(void)
190 sa11x0_register_mtd(&hackkit_flash_data
, &hackkit_flash_resource
, 1);
193 /**********************************************************************
197 MACHINE_START(HACKKIT
, "HackKit Cpu Board")
198 .atag_offset
= 0x100,
199 .map_io
= hackkit_map_io
,
200 .init_irq
= sa1100_init_irq
,
201 .timer
= &sa1100_timer
,
202 .init_machine
= hackkit_init
,