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

   1 // SPDX-License-Identifier: GPL-2.0
   2 //
   3 // Copyright (c) 2004 Nex Vision
   4 //   Guillaume GOURAT <guillaume.gourat@nexvision.fr>
   5
   6 #include <linux/kernel.h>
   7 #include <linux/types.h>
   8 #include <linux/interrupt.h>
   9 #include <linux/list.h>
  10 #include <linux/timer.h>
  11 #include <linux/init.h>
  12 #include <linux/serial_core.h>
  13 #include <linux/serial_s3c.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/io.h>
  16
  17 #include <linux/platform_data/i2c-s3c2410.h>
  18
  19 #include <asm/irq.h>
  20 #include <asm/mach-types.h>
  21 #include <asm/mach/arch.h>
  22 #include <asm/mach/map.h>
  23 #include <asm/mach/irq.h>
  24
  25 #include "gpio-samsung.h"
  26 #include "gpio-cfg.h"
  27
  28 #include "cpu.h"
  29 #include "devs.h"
  30
  31 #include "s3c24xx.h"
  32 #include "otom.h"
  33
  34 static struct map_desc otom11_iodesc[] __initdata = {
  35   /* Device area */
  36         { (u32)OTOM_VA_CS8900A_BASE, OTOM_PA_CS8900A_BASE, SZ_16M, MT_DEVICE },
  37 };
  38
  39 #define UCON S3C2410_UCON_DEFAULT
  40 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
  41 #define UFCON S3C2410_UFCON_RXTRIG12 | S3C2410_UFCON_FIFOMODE
  42
  43 static struct s3c2410_uartcfg otom11_uartcfgs[] __initdata = {
  44         [0] = {
  45                 .hwport      = 0,
  46                 .flags       = 0,
  47                 .ucon        = UCON,
  48                 .ulcon       = ULCON,
  49                 .ufcon       = UFCON,
  50         },
  51         [1] = {
  52                 .hwport      = 1,
  53                 .flags       = 0,
  54                 .ucon        = UCON,
  55                 .ulcon       = ULCON,
  56                 .ufcon       = UFCON,
  57         },
  58         /* port 2 is not actually used */
  59         [2] = {
  60                 .hwport      = 2,
  61                 .flags       = 0,
  62                 .ucon        = UCON,
  63                 .ulcon       = ULCON,
  64                 .ufcon       = UFCON,
  65         }
  66 };
  67
  68 /* NOR Flash on NexVision OTOM board */
  69
  70 static struct resource otom_nor_resource[] = {
  71         [0] = DEFINE_RES_MEM(S3C2410_CS0, SZ_4M),
  72 };
  73
  74 static struct platform_device otom_device_nor = {
  75         .name           = "mtd-flash",
  76         .id             = -1,
  77         .num_resources  = ARRAY_SIZE(otom_nor_resource),
  78         .resource       = otom_nor_resource,
  79 };
  80
  81 /* Standard OTOM devices */
  82
  83 static struct platform_device *otom11_devices[] __initdata = {
  84         &s3c_device_ohci,
  85         &s3c_device_lcd,
  86         &s3c_device_wdt,
  87         &s3c_device_i2c0,
  88         &s3c_device_iis,
  89         &s3c_device_rtc,
  90         &otom_device_nor,
  91 };
  92
  93 static void __init otom11_map_io(void)
  94 {
  95         s3c24xx_init_io(otom11_iodesc, ARRAY_SIZE(otom11_iodesc));
  96         s3c24xx_init_uarts(otom11_uartcfgs, ARRAY_SIZE(otom11_uartcfgs));
  97         s3c24xx_set_timer_source(S3C24XX_PWM3, S3C24XX_PWM4);
  98 }
  99
 100 static void __init otom11_init_time(void)
 101 {
 102         s3c2410_init_clocks(12000000);
 103         s3c24xx_timer_init();
 104 }
 105
 106 static void __init otom11_init(void)
 107 {
 108         s3c_i2c0_set_platdata(NULL);
 109
 110         /* Configure the I2S pins (GPE0...GPE4) in correct mode */
 111         s3c_gpio_cfgall_range(S3C2410_GPE(0), 5, S3C_GPIO_SFN(2),
 112                               S3C_GPIO_PULL_NONE);
 113         platform_add_devices(otom11_devices, ARRAY_SIZE(otom11_devices));
 114 }
 115
 116 MACHINE_START(OTOM, "Nex Vision - Otom 1.1")
 117         /* Maintainer: Guillaume GOURAT <guillaume.gourat@nexvision.tv> */
 118         .atag_offset    = 0x100,
 119         .nr_irqs        = NR_IRQS_S3C2410,
 120         .map_io         = otom11_map_io,
 121         .init_machine   = otom11_init,
 122         .init_irq       = s3c2410_init_irq,
 123         .init_time      = otom11_init_time,
 124 MACHINE_END