Merge tag 'iommu-updates-v3.15' of git://git.kernel.org/pub/scm/linux/kernel/git...
[sfrench/cifs-2.6.git] / arch / arm / mach-s3c24xx / 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/serial_s3c.h>
41 #include <linux/io.h>
42
43 #include <asm/mach/arch.h>
44 #include <asm/mach/map.h>
45 #include <asm/mach/irq.h>
46 #include <asm/mach/flash.h>
47
48 #include <mach/hardware.h>
49 #include <asm/irq.h>
50 #include <asm/mach-types.h>
51 #include <mach/fb.h>
52
53 #include <mach/regs-lcd.h>
54 #include <mach/regs-gpio.h>
55 #include <mach/gpio-samsung.h>
56
57 #include <linux/platform_data/i2c-s3c2410.h>
58 #include <plat/devs.h>
59 #include <plat/cpu.h>
60 #include <plat/gpio-cfg.h>
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 #include <plat/samsung-time.h>
68
69 #include "common.h"
70
71 static struct resource amlm5900_nor_resource =
72                         DEFINE_RES_MEM(0x00000000, SZ_16M);
73
74 static struct mtd_partition amlm5900_mtd_partitions[] = {
75         {
76                 .name           = "System",
77                 .size           = 0x240000,
78                 .offset         = 0,
79                 .mask_flags     = MTD_WRITEABLE,  /* force read-only */
80         }, {
81                 .name           = "Kernel",
82                 .size           = 0x100000,
83                 .offset         = MTDPART_OFS_APPEND,
84         }, {
85                 .name           = "Ramdisk",
86                 .size           = 0x300000,
87                 .offset         = MTDPART_OFS_APPEND,
88         }, {
89                 .name           = "JFFS2",
90                 .size           = 0x9A0000,
91                 .offset         = MTDPART_OFS_APPEND,
92         }, {
93                 .name           = "Settings",
94                 .size           = MTDPART_SIZ_FULL,
95                 .offset         = MTDPART_OFS_APPEND,
96         }
97 };
98
99 static struct physmap_flash_data amlm5900_flash_data = {
100         .width          = 2,
101         .parts          = amlm5900_mtd_partitions,
102         .nr_parts       = ARRAY_SIZE(amlm5900_mtd_partitions),
103 };
104
105 static struct platform_device amlm5900_device_nor = {
106         .name           = "physmap-flash",
107         .id             = 0,
108         .dev = {
109                         .platform_data = &amlm5900_flash_data,
110                 },
111         .num_resources  = 1,
112         .resource       = &amlm5900_nor_resource,
113 };
114
115 static struct map_desc amlm5900_iodesc[] __initdata = {
116 };
117
118 #define UCON S3C2410_UCON_DEFAULT
119 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
120 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
121
122 static struct s3c2410_uartcfg amlm5900_uartcfgs[] = {
123         [0] = {
124                 .hwport      = 0,
125                 .flags       = 0,
126                 .ucon        = UCON,
127                 .ulcon       = ULCON,
128                 .ufcon       = UFCON,
129         },
130         [1] = {
131                 .hwport      = 1,
132                 .flags       = 0,
133                 .ucon        = UCON,
134                 .ulcon       = ULCON,
135                 .ufcon       = UFCON,
136         },
137         [2] = {
138                 .hwport      = 2,
139                 .flags       = 0,
140                 .ucon        = UCON,
141                 .ulcon       = ULCON,
142                 .ufcon       = UFCON,
143         }
144 };
145
146
147 static struct platform_device *amlm5900_devices[] __initdata = {
148 #ifdef CONFIG_FB_S3C2410
149         &s3c_device_lcd,
150 #endif
151         &s3c_device_adc,
152         &s3c_device_wdt,
153         &s3c_device_i2c0,
154         &s3c_device_ohci,
155         &s3c_device_rtc,
156         &s3c_device_usbgadget,
157         &s3c_device_sdi,
158         &amlm5900_device_nor,
159 };
160
161 static void __init amlm5900_map_io(void)
162 {
163         s3c24xx_init_io(amlm5900_iodesc, ARRAY_SIZE(amlm5900_iodesc));
164         s3c24xx_init_clocks(0);
165         s3c24xx_init_uarts(amlm5900_uartcfgs, ARRAY_SIZE(amlm5900_uartcfgs));
166         samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
167 }
168
169 #ifdef CONFIG_FB_S3C2410
170 static struct s3c2410fb_display __initdata amlm5900_lcd_info = {
171         .width          = 160,
172         .height         = 160,
173
174         .type           = S3C2410_LCDCON1_STN4,
175
176         .pixclock       = 680000, /* HCLK = 100MHz */
177         .xres           = 160,
178         .yres           = 160,
179         .bpp            = 4,
180         .left_margin    = 1 << (4 + 3),
181         .right_margin   = 8 << 3,
182         .hsync_len      = 48,
183         .upper_margin   = 0,
184         .lower_margin   = 0,
185
186         .lcdcon5        = 0x00000001,
187 };
188
189 static struct s3c2410fb_mach_info __initdata amlm5900_fb_info = {
190
191         .displays = &amlm5900_lcd_info,
192         .num_displays = 1,
193         .default_display = 0,
194
195         .gpccon =       0xaaaaaaaa,
196         .gpccon_mask =  0xffffffff,
197         .gpcup =        0x0000ffff,
198         .gpcup_mask =   0xffffffff,
199
200         .gpdcon =       0xaaaaaaaa,
201         .gpdcon_mask =  0xffffffff,
202         .gpdup =        0x0000ffff,
203         .gpdup_mask =   0xffffffff,
204 };
205 #endif
206
207 static irqreturn_t
208 amlm5900_wake_interrupt(int irq, void *ignored)
209 {
210         return IRQ_HANDLED;
211 }
212
213 static void amlm5900_init_pm(void)
214 {
215         int ret = 0;
216
217         ret = request_irq(IRQ_EINT9, &amlm5900_wake_interrupt,
218                                 IRQF_TRIGGER_RISING | IRQF_SHARED,
219                                 "amlm5900_wakeup", &amlm5900_wake_interrupt);
220         if (ret != 0) {
221                 printk(KERN_ERR "AML-M5900: no wakeup irq, %d?\n", ret);
222         } else {
223                 enable_irq_wake(IRQ_EINT9);
224                 /* configure the suspend/resume status pin */
225                 s3c_gpio_cfgpin(S3C2410_GPF(2), S3C2410_GPIO_OUTPUT);
226                 s3c_gpio_setpull(S3C2410_GPF(2), S3C_GPIO_PULL_UP);
227         }
228 }
229 static void __init amlm5900_init(void)
230 {
231         amlm5900_init_pm();
232 #ifdef CONFIG_FB_S3C2410
233         s3c24xx_fb_set_platdata(&amlm5900_fb_info);
234 #endif
235         s3c_i2c0_set_platdata(NULL);
236         platform_add_devices(amlm5900_devices, ARRAY_SIZE(amlm5900_devices));
237 }
238
239 MACHINE_START(AML_M5900, "AML_M5900")
240         .atag_offset    = 0x100,
241         .map_io         = amlm5900_map_io,
242         .init_irq       = s3c2410_init_irq,
243         .init_machine   = amlm5900_init,
244         .init_time      = samsung_timer_init,
245         .restart        = s3c2410_restart,
246 MACHINE_END