1 // SPDX-License-Identifier: GPL-2.0
2 // linux/arch/arm/mach-s3c2440/mach-nexcoder.c
3 //
4 // Copyright (c) 2004 Nex Vision
5 // Guillaume GOURAT <guillaume.gourat@nexvision.tv>
6 //
7 // Modifications:
8 // 15-10-2004 GG Created initial version
9 // 12-03-2005 BJD Updated for release
10
11 #include <linux/kernel.h>
12 #include <linux/types.h>
13 #include <linux/interrupt.h>
14 #include <linux/list.h>
15 #include <linux/timer.h>
16 #include <linux/init.h>
17 #include <linux/gpio.h>
18 #include <linux/string.h>
19 #include <linux/serial_core.h>
20 #include <linux/serial_s3c.h>
21 #include <linux/platform_device.h>
22 #include <linux/io.h>
23
24 #include <linux/mtd/map.h>
25
26 #include <asm/mach/arch.h>
27 #include <asm/mach/map.h>
28 #include <asm/mach/irq.h>
29
30 #include <asm/setup.h>
31 #include <asm/irq.h>
32 #include <asm/mach-types.h>
33
34 //#include <asm/debug-ll.h>
35 #include "regs-gpio.h"
36 #include "gpio-samsung.h"
37 #include <linux/platform_data/i2c-s3c2410.h>
38
39 #include "gpio-cfg.h"
40 #include "devs.h"
41 #include "cpu.h"
42
43 #include "s3c24xx.h"
44
45 static struct map_desc nexcoder_iodesc[] __initdata = {
46 /* nothing here yet */
47 };
48
49 #define UCON S3C2410_UCON_DEFAULT
50 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
51 #define UFCON S3C2410_UFCON_RXTRIG12 | S3C2410_UFCON_FIFOMODE
52
53 static struct s3c2410_uartcfg nexcoder_uartcfgs[] __initdata = {
54 [0] = {
55 .hwport = 0,
56 .flags = 0,
57 .ucon = UCON,
58 .ulcon = ULCON,
59 .ufcon = UFCON,
60 },
61 [1] = {
62 .hwport = 1,
63 .flags = 0,
64 .ucon = UCON,
65 .ulcon = ULCON,
66 .ufcon = UFCON,
67 },
68 [2] = {
69 .hwport = 2,
70 .flags = 0,
71 .ucon = UCON,
72 .ulcon = ULCON,
73 .ufcon = UFCON,
74 }
75 };
76
77 /* NOR Flash on NexVision NexCoder 2440 board */
78
79 static struct resource nexcoder_nor_resource[] = {
80 [0] = DEFINE_RES_MEM(S3C2410_CS0, SZ_8M),
81 };
82
83 static struct map_info nexcoder_nor_map = {
84 .bankwidth = 2,
85 };
86
87 static struct platform_device nexcoder_device_nor = {
88 .name = "mtd-flash",
89 .id = -1,
90 .num_resources = ARRAY_SIZE(nexcoder_nor_resource),
91 .resource = nexcoder_nor_resource,
92 .dev =
93 {
94 .platform_data = &nexcoder_nor_map,
95 }
96 };
97
98 /* Standard Nexcoder devices */
99
100 static struct platform_device *nexcoder_devices[] __initdata = {
101 &s3c_device_ohci,
102 &s3c_device_lcd,
103 &s3c_device_wdt,
104 &s3c_device_i2c0,
105 &s3c_device_iis,
106 &s3c_device_rtc,
107 &s3c_device_camif,
108 &s3c_device_spi0,
109 &s3c_device_spi1,
110 &nexcoder_device_nor,
111 };
112
nexcoder_sensorboard_init(void)113 static void __init nexcoder_sensorboard_init(void)
114 {
115 /* Initialize SCCB bus */
116 gpio_request_one(S3C2410_GPE(14), GPIOF_OUT_INIT_HIGH, NULL);
117 gpio_free(S3C2410_GPE(14)); /* IICSCL */
118 gpio_request_one(S3C2410_GPE(15), GPIOF_OUT_INIT_HIGH, NULL);
119 gpio_free(S3C2410_GPE(15)); /* IICSDA */
120
121 /* Power up the sensor board */
122 gpio_request_one(S3C2410_GPF(1), GPIOF_OUT_INIT_HIGH, NULL);
123 gpio_free(S3C2410_GPF(1)); /* CAM_GPIO7 => nLDO_PWRDN */
124 gpio_request_one(S3C2410_GPF(2), GPIOF_OUT_INIT_LOW, NULL);
125 gpio_free(S3C2410_GPF(2)); /* CAM_GPIO6 => CAM_PWRDN */
126 }
127
nexcoder_map_io(void)128 static void __init nexcoder_map_io(void)
129 {
130 s3c24xx_init_io(nexcoder_iodesc, ARRAY_SIZE(nexcoder_iodesc));
131 s3c24xx_init_uarts(nexcoder_uartcfgs, ARRAY_SIZE(nexcoder_uartcfgs));
132 s3c24xx_set_timer_source(S3C24XX_PWM3, S3C24XX_PWM4);
133
134 nexcoder_sensorboard_init();
135 }
136
nexcoder_init_time(void)137 static void __init nexcoder_init_time(void)
138 {
139 s3c2440_init_clocks(12000000);
140 s3c24xx_timer_init();
141 }
142
nexcoder_init(void)143 static void __init nexcoder_init(void)
144 {
145 s3c_i2c0_set_platdata(NULL);
146
147 /* Configure the I2S pins (GPE0...GPE4) in correct mode */
148 s3c_gpio_cfgall_range(S3C2410_GPE(0), 5, S3C_GPIO_SFN(2),
149 S3C_GPIO_PULL_NONE);
150
151 platform_add_devices(nexcoder_devices, ARRAY_SIZE(nexcoder_devices));
152 };
153
154 MACHINE_START(NEXCODER_2440, "NexVision - Nexcoder 2440")
155 /* Maintainer: Guillaume GOURAT <guillaume.gourat@nexvision.tv> */
156 .atag_offset = 0x100,
157 .nr_irqs = NR_IRQS_S3C2440,
158 .map_io = nexcoder_map_io,
159 .init_machine = nexcoder_init,
160 .init_irq = s3c2440_init_irq,
161 .init_time = nexcoder_init_time,
162 MACHINE_END
163