43f7536c5291223b3212032f2ff2c108ea55abf9
[linux-2.6.git] / arch / arm / mach-s3c2410 / mach-amlm5900.c
1 /* linux/arch/arm/mach-s3c2410/mach-amlm5900.c
2  *
3  * linux/arch/arm/mach-s3c2410/mach-amlm5900.c
4  *
5  * Copyright (c) 2006 American Microsystems Limited
6  *      David Anders <danders@amltd.com>
7
8  * This program is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU General Public License as
10  * published by the Free Software Foundation; either version 2 of
11  * the License, or (at your option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program; if not, write to the Free Software
20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21  * MA 02111-1307 USA
22  *
23  * @History:
24  * derived from linux/arch/arm/mach-s3c2410/mach-bast.c, written by
25  * Ben Dooks <ben@simtec.co.uk>
26  *
27  ***********************************************************************/
28
29 #include <linux/kernel.h>
30 #include <linux/types.h>
31 #include <linux/interrupt.h>
32 #include <linux/list.h>
33 #include <linux/timer.h>
34 #include <linux/init.h>
35 #include <linux/gpio.h>
36 #include <linux/device.h>
37 #include <linux/platform_device.h>
38 #include <linux/proc_fs.h>
39 #include <linux/serial_core.h>
40 #include <linux/io.h>
41
42 #include <asm/mach/arch.h>
43 #include <asm/mach/map.h>
44 #include <asm/mach/irq.h>
45 #include <asm/mach/flash.h>
46
47 #include <mach/hardware.h>
48 #include <asm/irq.h>
49 #include <asm/mach-types.h>
50 #include <mach/fb.h>
51
52 #include <plat/regs-serial.h>
53 #include <mach/regs-lcd.h>
54 #include <mach/regs-gpio.h>
55
56 #include <plat/iic.h>
57 #include <plat/devs.h>
58 #include <plat/cpu.h>
59
60 #ifdef CONFIG_MTD_PARTITIONS
61
62 #include <linux/mtd/mtd.h>
63 #include <linux/mtd/partitions.h>
64 #include <linux/mtd/map.h>
65 #include <linux/mtd/physmap.h>
66
67 static struct resource amlm5900_nor_resource = {
68                 .start = 0x00000000,
69                 .end   = 0x01000000 - 1,
70                 .flags = IORESOURCE_MEM,
71 };
72
73
74
75 static struct mtd_partition amlm5900_mtd_partitions[] = {
76         {
77                 .name           = "System",
78                 .size           = 0x240000,
79                 .offset         = 0,
80                 .mask_flags     = MTD_WRITEABLE,  /* force read-only */
81         }, {
82                 .name           = "Kernel",
83                 .size           = 0x100000,
84                 .offset         = MTDPART_OFS_APPEND,
85         }, {
86                 .name           = "Ramdisk",
87                 .size           = 0x300000,
88                 .offset         = MTDPART_OFS_APPEND,
89         }, {
90                 .name           = "JFFS2",
91                 .size           = 0x9A0000,
92                 .offset         = MTDPART_OFS_APPEND,
93         }, {
94                 .name           = "Settings",
95                 .size           = MTDPART_SIZ_FULL,
96                 .offset         = MTDPART_OFS_APPEND,
97         }
98 };
99
100 static struct physmap_flash_data amlm5900_flash_data = {
101         .width          = 2,
102         .parts          = amlm5900_mtd_partitions,
103         .nr_parts       = ARRAY_SIZE(amlm5900_mtd_partitions),
104 };
105
106 static struct platform_device amlm5900_device_nor = {
107         .name           = "physmap-flash",
108         .id             = 0,
109         .dev = {
110                         .platform_data = &amlm5900_flash_data,
111                 },
112         .num_resources  = 1,
113         .resource       = &amlm5900_nor_resource,
114 };
115 #endif
116
117 static struct map_desc amlm5900_iodesc[] __initdata = {
118 };
119
120 #define UCON S3C2410_UCON_DEFAULT
121 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
122 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
123
124 static struct s3c2410_uartcfg amlm5900_uartcfgs[] = {
125         [0] = {
126                 .hwport      = 0,
127                 .flags       = 0,
128                 .ucon        = UCON,
129                 .ulcon       = ULCON,
130                 .ufcon       = UFCON,
131         },
132         [1] = {
133                 .hwport      = 1,
134                 .flags       = 0,
135                 .ucon        = UCON,
136                 .ulcon       = ULCON,
137                 .ufcon       = UFCON,
138         },
139         [2] = {
140                 .hwport      = 2,
141                 .flags       = 0,
142                 .ucon        = UCON,
143                 .ulcon       = ULCON,
144                 .ufcon       = UFCON,
145         }
146 };
147
148
149 static struct platform_device *amlm5900_devices[] __initdata = {
150 #ifdef CONFIG_FB_S3C2410
151         &s3c_device_lcd,
152 #endif
153         &s3c_device_adc,
154         &s3c_device_wdt,
155         &s3c_device_i2c0,
156         &s3c_device_usb,
157         &s3c_device_rtc,
158         &s3c_device_usbgadget,
159         &s3c_device_sdi,
160 #ifdef CONFIG_MTD_PARTITIONS
161         &amlm5900_device_nor,
162 #endif
163 };
164
165 static void __init amlm5900_map_io(void)
166 {
167         s3c24xx_init_io(amlm5900_iodesc, ARRAY_SIZE(amlm5900_iodesc));
168         s3c24xx_init_clocks(0);
169         s3c24xx_init_uarts(amlm5900_uartcfgs, ARRAY_SIZE(amlm5900_uartcfgs));
170 }
171
172 #ifdef CONFIG_FB_S3C2410
173 static struct s3c2410fb_display __initdata amlm5900_lcd_info = {
174         .width          = 160,
175         .height         = 160,
176
177         .type           = S3C2410_LCDCON1_STN4,
178
179         .pixclock       = 680000, /* HCLK = 100MHz */
180         .xres           = 160,
181         .yres           = 160,
182         .bpp            = 4,
183         .left_margin    = 1 << (4 + 3),
184         .right_margin   = 8 << 3,
185         .hsync_len      = 48,
186         .upper_margin   = 0,
187         .lower_margin   = 0,
188
189         .lcdcon5        = 0x00000001,
190 };
191
192 static struct s3c2410fb_mach_info __initdata amlm5900_fb_info = {
193
194         .displays = &amlm5900_lcd_info,
195         .num_displays = 1,
196         .default_display = 0,
197
198         .gpccon =       0xaaaaaaaa,
199         .gpccon_mask =  0xffffffff,
200         .gpcup =        0x0000ffff,
201         .gpcup_mask =   0xffffffff,
202
203         .gpdcon =       0xaaaaaaaa,
204         .gpdcon_mask =  0xffffffff,
205         .gpdup =        0x0000ffff,
206         .gpdup_mask =   0xffffffff,
207 };
208 #endif
209
210 static irqreturn_t
211 amlm5900_wake_interrupt(int irq, void *ignored)
212 {
213         return IRQ_HANDLED;
214 }
215
216 static void amlm5900_init_pm(void)
217 {
218         int ret = 0;
219
220         ret = request_irq(IRQ_EINT9, &amlm5900_wake_interrupt,
221                                 IRQF_TRIGGER_RISING | IRQF_SHARED,
222                                 "amlm5900_wakeup", &amlm5900_wake_interrupt);
223         if (ret != 0) {
224                 printk(KERN_ERR "AML-M5900: no wakeup irq, %d?\n", ret);
225         } else {
226                 enable_irq_wake(IRQ_EINT9);
227                 /* configure the suspend/resume status pin */
228                 s3c2410_gpio_cfgpin(S3C2410_GPF2, S3C2410_GPIO_OUTPUT);
229                 s3c2410_gpio_pullup(S3C2410_GPF2, 0);
230         }
231 }
232 static void __init amlm5900_init(void)
233 {
234         amlm5900_init_pm();
235 #ifdef CONFIG_FB_S3C2410
236         s3c24xx_fb_set_platdata(&amlm5900_fb_info);
237 #endif
238         s3c_i2c0_set_platdata(NULL);
239         platform_add_devices(amlm5900_devices, ARRAY_SIZE(amlm5900_devices));
240 }
241
242 MACHINE_START(AML_M5900, "AML_M5900")
243         .phys_io        = S3C2410_PA_UART,
244         .io_pg_offst    = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
245         .boot_params    = S3C2410_SDRAM_PA + 0x100,
246         .map_io         = amlm5900_map_io,
247         .init_irq       = s3c24xx_init_irq,
248         .init_machine   = amlm5900_init,
249         .timer          = &s3c24xx_timer,
250 MACHINE_END