arch/arm/mach-s3c/mach-nexcoder.c

   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
 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
 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
 137 static void __init nexcoder_init_time(void)
 138 {
 139         s3c2440_init_clocks(12000000);
 140         s3c24xx_timer_init();
 141 }
 142
 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         .map_io         = nexcoder_map_io,
 158         .init_machine   = nexcoder_init,
 159         .init_irq       = s3c2440_init_irq,
 160         .init_time      = nexcoder_init_time,
 161 MACHINE_END