• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1 // SPDX-License-Identifier: GPL-2.0+
2 //
3 // Copyright (c) 2006 American Microsystems Limited
4 //	David Anders <danders@amltd.com>
5 //
6 // @History:
7 // derived from linux/arch/arm/mach-s3c2410/mach-bast.c, written by
8 // Ben Dooks <ben@simtec.co.uk>
9 
10 #include <linux/kernel.h>
11 #include <linux/types.h>
12 #include <linux/interrupt.h>
13 #include <linux/list.h>
14 #include <linux/timer.h>
15 #include <linux/init.h>
16 #include <linux/gpio/machine.h>
17 #include <linux/gpio.h>
18 #include <linux/device.h>
19 #include <linux/platform_device.h>
20 #include <linux/proc_fs.h>
21 #include <linux/serial_core.h>
22 #include <linux/serial_s3c.h>
23 #include <linux/io.h>
24 
25 #include <asm/mach/arch.h>
26 #include <asm/mach/map.h>
27 #include <asm/mach/irq.h>
28 #include <asm/mach/flash.h>
29 
30 #include <asm/irq.h>
31 #include <asm/mach-types.h>
32 #include <linux/platform_data/fb-s3c2410.h>
33 
34 #include "regs-gpio.h"
35 #include "gpio-samsung.h"
36 
37 #include <linux/platform_data/i2c-s3c2410.h>
38 #include "devs.h"
39 #include "cpu.h"
40 #include "gpio-cfg.h"
41 
42 #include <linux/mtd/mtd.h>
43 #include <linux/mtd/partitions.h>
44 #include <linux/mtd/map.h>
45 #include <linux/mtd/physmap.h>
46 
47 #include "s3c24xx.h"
48 
49 static struct resource amlm5900_nor_resource =
50 			DEFINE_RES_MEM(0x00000000, SZ_16M);
51 
52 static struct mtd_partition amlm5900_mtd_partitions[] = {
53 	{
54 		.name		= "System",
55 		.size		= 0x240000,
56 		.offset		= 0,
57 		.mask_flags 	= MTD_WRITEABLE,  /* force read-only */
58 	}, {
59 		.name		= "Kernel",
60 		.size		= 0x100000,
61 		.offset		= MTDPART_OFS_APPEND,
62 	}, {
63 		.name		= "Ramdisk",
64 		.size		= 0x300000,
65 		.offset		= MTDPART_OFS_APPEND,
66 	}, {
67 		.name		= "JFFS2",
68 		.size		= 0x9A0000,
69 		.offset		= MTDPART_OFS_APPEND,
70 	}, {
71 		.name		= "Settings",
72 		.size		= MTDPART_SIZ_FULL,
73 		.offset		= MTDPART_OFS_APPEND,
74 	}
75 };
76 
77 static struct physmap_flash_data amlm5900_flash_data = {
78 	.width		= 2,
79 	.parts		= amlm5900_mtd_partitions,
80 	.nr_parts	= ARRAY_SIZE(amlm5900_mtd_partitions),
81 };
82 
83 static struct platform_device amlm5900_device_nor = {
84 	.name		= "physmap-flash",
85 	.id		= 0,
86 	.dev = {
87 			.platform_data = &amlm5900_flash_data,
88 		},
89 	.num_resources	= 1,
90 	.resource	= &amlm5900_nor_resource,
91 };
92 
93 static struct map_desc amlm5900_iodesc[] __initdata = {
94 };
95 
96 #define UCON S3C2410_UCON_DEFAULT
97 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
98 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
99 
100 static struct s3c2410_uartcfg amlm5900_uartcfgs[] = {
101 	[0] = {
102 		.hwport	     = 0,
103 		.flags	     = 0,
104 		.ucon	     = UCON,
105 		.ulcon	     = ULCON,
106 		.ufcon	     = UFCON,
107 	},
108 	[1] = {
109 		.hwport	     = 1,
110 		.flags	     = 0,
111 		.ucon	     = UCON,
112 		.ulcon	     = ULCON,
113 		.ufcon	     = UFCON,
114 	},
115 	[2] = {
116 		.hwport	     = 2,
117 		.flags	     = 0,
118 		.ucon	     = UCON,
119 		.ulcon	     = ULCON,
120 		.ufcon	     = UFCON,
121 	}
122 };
123 
124 static struct gpiod_lookup_table amlm5900_mmc_gpio_table = {
125 	.dev_id = "s3c2410-sdi",
126 	.table = {
127 		/* bus pins */
128 		GPIO_LOOKUP_IDX("GPIOE",  5, "bus", 0, GPIO_ACTIVE_HIGH),
129 		GPIO_LOOKUP_IDX("GPIOE",  6, "bus", 1, GPIO_ACTIVE_HIGH),
130 		GPIO_LOOKUP_IDX("GPIOE",  7, "bus", 2, GPIO_ACTIVE_HIGH),
131 		GPIO_LOOKUP_IDX("GPIOE",  8, "bus", 3, GPIO_ACTIVE_HIGH),
132 		GPIO_LOOKUP_IDX("GPIOE",  9, "bus", 4, GPIO_ACTIVE_HIGH),
133 		GPIO_LOOKUP_IDX("GPIOE", 10, "bus", 5, GPIO_ACTIVE_HIGH),
134 		{ },
135 	},
136 };
137 
138 static struct platform_device *amlm5900_devices[] __initdata = {
139 #ifdef CONFIG_FB_S3C2410
140 	&s3c_device_lcd,
141 #endif
142 	&s3c_device_adc,
143 	&s3c_device_wdt,
144 	&s3c_device_i2c0,
145 	&s3c_device_ohci,
146  	&s3c_device_rtc,
147 	&s3c_device_usbgadget,
148         &s3c_device_sdi,
149 	&amlm5900_device_nor,
150 };
151 
amlm5900_map_io(void)152 static void __init amlm5900_map_io(void)
153 {
154 	s3c24xx_init_io(amlm5900_iodesc, ARRAY_SIZE(amlm5900_iodesc));
155 	s3c24xx_init_uarts(amlm5900_uartcfgs, ARRAY_SIZE(amlm5900_uartcfgs));
156 	s3c24xx_set_timer_source(S3C24XX_PWM3, S3C24XX_PWM4);
157 }
158 
amlm5900_init_time(void)159 static void __init amlm5900_init_time(void)
160 {
161 	s3c2410_init_clocks(12000000);
162 	s3c24xx_timer_init();
163 }
164 
165 #ifdef CONFIG_FB_S3C2410
166 static struct s3c2410fb_display __initdata amlm5900_lcd_info = {
167 	.width		= 160,
168 	.height		= 160,
169 
170 	.type		= S3C2410_LCDCON1_STN4,
171 
172 	.pixclock	= 680000, /* HCLK = 100MHz */
173 	.xres		= 160,
174 	.yres		= 160,
175 	.bpp		= 4,
176 	.left_margin	= 1 << (4 + 3),
177 	.right_margin	= 8 << 3,
178 	.hsync_len	= 48,
179 	.upper_margin	= 0,
180 	.lower_margin	= 0,
181 
182 	.lcdcon5	= 0x00000001,
183 };
184 
185 static struct s3c2410fb_mach_info __initdata amlm5900_fb_info = {
186 
187 	.displays = &amlm5900_lcd_info,
188 	.num_displays = 1,
189 	.default_display = 0,
190 
191 	.gpccon =	0xaaaaaaaa,
192 	.gpccon_mask =	0xffffffff,
193 	.gpccon_reg =	S3C2410_GPCCON,
194 	.gpcup =	0x0000ffff,
195 	.gpcup_mask =	0xffffffff,
196 	.gpcup_reg =	S3C2410_GPCUP,
197 
198 	.gpdcon =	0xaaaaaaaa,
199 	.gpdcon_mask =	0xffffffff,
200 	.gpdcon_reg =	S3C2410_GPDCON,
201 	.gpdup =	0x0000ffff,
202 	.gpdup_mask =	0xffffffff,
203 	.gpdup_reg =	S3C2410_GPDUP,
204 };
205 #endif
206 
207 static irqreturn_t
amlm5900_wake_interrupt(int irq,void * ignored)208 amlm5900_wake_interrupt(int irq, void *ignored)
209 {
210 	return IRQ_HANDLED;
211 }
212 
amlm5900_init_pm(void)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 }
amlm5900_init(void)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 	gpiod_add_lookup_table(&amlm5900_mmc_gpio_table);
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	= s3c2410_init_irq,
244 	.init_machine	= amlm5900_init,
245 	.init_time	= amlm5900_init_time,
246 MACHINE_END
247