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
 45static 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
 53static 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
 79static struct resource nexcoder_nor_resource[] = {
 80	[0] = DEFINE_RES_MEM(S3C2410_CS0, SZ_8M),
 81};
 82
 83static struct map_info nexcoder_nor_map = {
 84	.bankwidth = 2,
 85};
 86
 87static 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
100static 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
113static 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
128static 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
137static void __init nexcoder_init_time(void)
138{
139	s3c2440_init_clocks(12000000);
140	s3c24xx_timer_init();
141}
142
143static 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
154MACHINE_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,
162MACHINE_END