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 #include <plat/gpio-cfg.h>
60
61 #include <linux/mtd/mtd.h>
62 #include <linux/mtd/partitions.h>
63 #include <linux/mtd/map.h>
64 #include <linux/mtd/physmap.h>
65
66 #include "common.h"
67
68 static struct resource amlm5900_nor_resource = {
69 .start = 0x00000000,
70 .end = 0x01000000 - 1,
71 .flags = IORESOURCE_MEM,
72 };
73
74
75
76 static struct mtd_partition amlm5900_mtd_partitions[] = {
77 {
78 .name = "System",
79 .size = 0x240000,
80 .offset = 0,
81 .mask_flags = MTD_WRITEABLE, /* force read-only */
82 }, {
83 .name = "Kernel",
84 .size = 0x100000,
85 .offset = MTDPART_OFS_APPEND,
86 }, {
87 .name = "Ramdisk",
88 .size = 0x300000,
89 .offset = MTDPART_OFS_APPEND,
90 }, {
91 .name = "JFFS2",
92 .size = 0x9A0000,
93 .offset = MTDPART_OFS_APPEND,
94 }, {
95 .name = "Settings",
96 .size = MTDPART_SIZ_FULL,
97 .offset = MTDPART_OFS_APPEND,
98 }
99 };
100
101 static struct physmap_flash_data amlm5900_flash_data = {
102 .width = 2,
103 .parts = amlm5900_mtd_partitions,
104 .nr_parts = ARRAY_SIZE(amlm5900_mtd_partitions),
105 };
106
107 static struct platform_device amlm5900_device_nor = {
108 .name = "physmap-flash",
109 .id = 0,
110 .dev = {
111 .platform_data = &amlm5900_flash_data,
112 },
113 .num_resources = 1,
114 .resource = &amlm5900_nor_resource,
115 };
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_ohci,
157 &s3c_device_rtc,
158 &s3c_device_usbgadget,
159 &s3c_device_sdi,
160 &amlm5900_device_nor,
161 };
162
amlm5900_map_io(void)163 static void __init amlm5900_map_io(void)
164 {
165 s3c24xx_init_io(amlm5900_iodesc, ARRAY_SIZE(amlm5900_iodesc));
166 s3c24xx_init_clocks(0);
167 s3c24xx_init_uarts(amlm5900_uartcfgs, ARRAY_SIZE(amlm5900_uartcfgs));
168 }
169
170 #ifdef CONFIG_FB_S3C2410
171 static struct s3c2410fb_display __initdata amlm5900_lcd_info = {
172 .width = 160,
173 .height = 160,
174
175 .type = S3C2410_LCDCON1_STN4,
176
177 .pixclock = 680000, /* HCLK = 100MHz */
178 .xres = 160,
179 .yres = 160,
180 .bpp = 4,
181 .left_margin = 1 << (4 + 3),
182 .right_margin = 8 << 3,
183 .hsync_len = 48,
184 .upper_margin = 0,
185 .lower_margin = 0,
186
187 .lcdcon5 = 0x00000001,
188 };
189
190 static struct s3c2410fb_mach_info __initdata amlm5900_fb_info = {
191
192 .displays = &amlm5900_lcd_info,
193 .num_displays = 1,
194 .default_display = 0,
195
196 .gpccon = 0xaaaaaaaa,
197 .gpccon_mask = 0xffffffff,
198 .gpcup = 0x0000ffff,
199 .gpcup_mask = 0xffffffff,
200
201 .gpdcon = 0xaaaaaaaa,
202 .gpdcon_mask = 0xffffffff,
203 .gpdup = 0x0000ffff,
204 .gpdup_mask = 0xffffffff,
205 };
206 #endif
207
208 static irqreturn_t
amlm5900_wake_interrupt(int irq,void * ignored)209 amlm5900_wake_interrupt(int irq, void *ignored)
210 {
211 return IRQ_HANDLED;
212 }
213
amlm5900_init_pm(void)214 static void amlm5900_init_pm(void)
215 {
216 int ret = 0;
217
218 ret = request_irq(IRQ_EINT9, &amlm5900_wake_interrupt,
219 IRQF_TRIGGER_RISING | IRQF_SHARED,
220 "amlm5900_wakeup", &amlm5900_wake_interrupt);
221 if (ret != 0) {
222 printk(KERN_ERR "AML-M5900: no wakeup irq, %d?\n", ret);
223 } else {
224 enable_irq_wake(IRQ_EINT9);
225 /* configure the suspend/resume status pin */
226 s3c_gpio_cfgpin(S3C2410_GPF(2), S3C2410_GPIO_OUTPUT);
227 s3c_gpio_setpull(S3C2410_GPF(2), S3C_GPIO_PULL_UP);
228 }
229 }
amlm5900_init(void)230 static void __init amlm5900_init(void)
231 {
232 amlm5900_init_pm();
233 #ifdef CONFIG_FB_S3C2410
234 s3c24xx_fb_set_platdata(&amlm5900_fb_info);
235 #endif
236 s3c_i2c0_set_platdata(NULL);
237 platform_add_devices(amlm5900_devices, ARRAY_SIZE(amlm5900_devices));
238 }
239
240 MACHINE_START(AML_M5900, "AML_M5900")
241 .atag_offset = 0x100,
242 .map_io = amlm5900_map_io,
243 .init_irq = s3c24xx_init_irq,
244 .init_machine = amlm5900_init,
245 .timer = &s3c24xx_timer,
246 .restart = s3c2410_restart,
247 MACHINE_END
248