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
amlm5900_map_io(void)161 static void __init amlm5900_map_io(void)
162 {
163 s3c24xx_init_io(amlm5900_iodesc, ARRAY_SIZE(amlm5900_iodesc));
164 s3c24xx_init_uarts(amlm5900_uartcfgs, ARRAY_SIZE(amlm5900_uartcfgs));
165 samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
166 }
167
amlm5900_init_time(void)168 static void __init amlm5900_init_time(void)
169 {
170 s3c2410_init_clocks(12000000);
171 samsung_timer_init();
172 }
173
174 #ifdef CONFIG_FB_S3C2410
175 static struct s3c2410fb_display __initdata amlm5900_lcd_info = {
176 .width = 160,
177 .height = 160,
178
179 .type = S3C2410_LCDCON1_STN4,
180
181 .pixclock = 680000, /* HCLK = 100MHz */
182 .xres = 160,
183 .yres = 160,
184 .bpp = 4,
185 .left_margin = 1 << (4 + 3),
186 .right_margin = 8 << 3,
187 .hsync_len = 48,
188 .upper_margin = 0,
189 .lower_margin = 0,
190
191 .lcdcon5 = 0x00000001,
192 };
193
194 static struct s3c2410fb_mach_info __initdata amlm5900_fb_info = {
195
196 .displays = &amlm5900_lcd_info,
197 .num_displays = 1,
198 .default_display = 0,
199
200 .gpccon = 0xaaaaaaaa,
201 .gpccon_mask = 0xffffffff,
202 .gpcup = 0x0000ffff,
203 .gpcup_mask = 0xffffffff,
204
205 .gpdcon = 0xaaaaaaaa,
206 .gpdcon_mask = 0xffffffff,
207 .gpdup = 0x0000ffff,
208 .gpdup_mask = 0xffffffff,
209 };
210 #endif
211
212 static irqreturn_t
amlm5900_wake_interrupt(int irq,void * ignored)213 amlm5900_wake_interrupt(int irq, void *ignored)
214 {
215 return IRQ_HANDLED;
216 }
217
amlm5900_init_pm(void)218 static void amlm5900_init_pm(void)
219 {
220 int ret = 0;
221
222 ret = request_irq(IRQ_EINT9, &amlm5900_wake_interrupt,
223 IRQF_TRIGGER_RISING | IRQF_SHARED,
224 "amlm5900_wakeup", &amlm5900_wake_interrupt);
225 if (ret != 0) {
226 printk(KERN_ERR "AML-M5900: no wakeup irq, %d?\n", ret);
227 } else {
228 enable_irq_wake(IRQ_EINT9);
229 /* configure the suspend/resume status pin */
230 s3c_gpio_cfgpin(S3C2410_GPF(2), S3C2410_GPIO_OUTPUT);
231 s3c_gpio_setpull(S3C2410_GPF(2), S3C_GPIO_PULL_UP);
232 }
233 }
amlm5900_init(void)234 static void __init amlm5900_init(void)
235 {
236 amlm5900_init_pm();
237 #ifdef CONFIG_FB_S3C2410
238 s3c24xx_fb_set_platdata(&amlm5900_fb_info);
239 #endif
240 s3c_i2c0_set_platdata(NULL);
241 platform_add_devices(amlm5900_devices, ARRAY_SIZE(amlm5900_devices));
242 }
243
244 MACHINE_START(AML_M5900, "AML_M5900")
245 .atag_offset = 0x100,
246 .map_io = amlm5900_map_io,
247 .init_irq = s3c2410_init_irq,
248 .init_machine = amlm5900_init,
249 .init_time = amlm5900_init_time,
250 MACHINE_END
251