arch/arm/mach-s3c2440/mach-at2440evb.c

   1 /* linux/arch/arm/mach-s3c2440/mach-at2440evb.c
   2  *
   3  * Copyright (c) 2008 Ramax Lo <ramaxlo@gmail.com>
   4  *      Based on mach-anubis.c by Ben Dooks <ben@simtec.co.uk>
   5  *      and modifications by SBZ <sbz@spgui.org> and
   6  *      Weibing <http://weibing.blogbus.com>
   7  *
   8  * For product information, visit http://www.arm9e.com/
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13 */
  14
  15 #include <linux/kernel.h>
  16 #include <linux/types.h>
  17 #include <linux/interrupt.h>
  18 #include <linux/list.h>
  19 #include <linux/timer.h>
  20 #include <linux/init.h>
  21 #include <linux/io.h>
  22 #include <linux/serial_core.h>
  23 #include <linux/dm9000.h>
  24 #include <linux/platform_device.h>
  25
  26 #include <asm/mach/arch.h>
  27 #include <asm/mach/map.h>
  28 #include <asm/mach/irq.h>
  29
  30 #include <asm/hardware.h>
  31 #include <asm/irq.h>
  32 #include <asm/mach-types.h>
  33
  34 #include <asm/plat-s3c/regs-serial.h>
  35 #include <asm/arch/regs-gpio.h>
  36 #include <asm/arch/regs-mem.h>
  37 #include <asm/arch/regs-lcd.h>
  38 #include <asm/plat-s3c/nand.h>
  39
  40 #include <linux/mtd/mtd.h>
  41 #include <linux/mtd/nand.h>
  42 #include <linux/mtd/nand_ecc.h>
  43 #include <linux/mtd/partitions.h>
  44
  45 #include <asm/plat-s3c24xx/clock.h>
  46 #include <asm/plat-s3c24xx/devs.h>
  47 #include <asm/plat-s3c24xx/cpu.h>
  48
  49 static struct map_desc at2440evb_iodesc[] __initdata = {
  50         /* Nothing here */
  51 };
  52
  53 #define UCON S3C2410_UCON_DEFAULT
  54 #define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE)
  55 #define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
  56
  57 static struct s3c24xx_uart_clksrc at2440evb_serial_clocks[] = {
  58         [0] = {
  59                 .name           = "uclk",
  60                 .divisor        = 1,
  61                 .min_baud       = 0,
  62                 .max_baud       = 0,
  63         },
  64         [1] = {
  65                 .name           = "pclk",
  66                 .divisor        = 1,
  67                 .min_baud       = 0,
  68                 .max_baud       = 0,
  69         }
  70 };
  71
  72
  73 static struct s3c2410_uartcfg at2440evb_uartcfgs[] __initdata = {
  74         [0] = {
  75                 .hwport      = 0,
  76                 .flags       = 0,
  77                 .ucon        = UCON,
  78                 .ulcon       = ULCON,
  79                 .ufcon       = UFCON,
  80                 .clocks      = at2440evb_serial_clocks,
  81                 .clocks_size = ARRAY_SIZE(at2440evb_serial_clocks),
  82         },
  83         [1] = {
  84                 .hwport      = 1,
  85                 .flags       = 0,
  86                 .ucon        = UCON,
  87                 .ulcon       = ULCON,
  88                 .ufcon       = UFCON,
  89                 .clocks      = at2440evb_serial_clocks,
  90                 .clocks_size = ARRAY_SIZE(at2440evb_serial_clocks),
  91         },
  92 };
  93
  94 /* NAND Flash on AT2440EVB board */
  95
  96 static struct mtd_partition at2440evb_default_nand_part[] = {
  97         [0] = {
  98                 .name   = "Boot Agent",
  99                 .size   = SZ_256K,
 100                 .offset = 0,
 101         },
 102         [1] = {
 103                 .name   = "Kernel",
 104                 .size   = SZ_2M,
 105                 .offset = SZ_256K,
 106         },
 107         [2] = {
 108                 .name   = "Root",
 109                 .offset = SZ_256K + SZ_2M,
 110                 .size   = MTDPART_SIZ_FULL,
 111         },
 112 };
 113
 114 static struct s3c2410_nand_set at2440evb_nand_sets[] = {
 115         [0] = {
 116                 .name           = "nand",
 117                 .nr_chips       = 1,
 118                 .nr_partitions  = ARRAY_SIZE(at2440evb_default_nand_part),
 119                 .partitions     = at2440evb_default_nand_part,
 120         },
 121 };
 122
 123 static struct s3c2410_platform_nand at2440evb_nand_info = {
 124         .tacls          = 25,
 125         .twrph0         = 55,
 126         .twrph1         = 40,
 127         .nr_sets        = ARRAY_SIZE(at2440evb_nand_sets),
 128         .sets           = at2440evb_nand_sets,
 129 };
 130
 131 /* DM9000AEP 10/100 ethernet controller */
 132
 133 static struct resource at2440evb_dm9k_resource[] = {
 134         [0] = {
 135                 .start = S3C2410_CS3,
 136                 .end   = S3C2410_CS3 + 3,
 137                 .flags = IORESOURCE_MEM
 138         },
 139         [1] = {
 140                 .start = S3C2410_CS3 + 4,
 141                 .end   = S3C2410_CS3 + 7,
 142                 .flags = IORESOURCE_MEM
 143         },
 144         [2] = {
 145                 .start = IRQ_EINT7,
 146                 .end   = IRQ_EINT7,
 147                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 148         }
 149 };
 150
 151 static struct dm9000_plat_data at2440evb_dm9k_pdata = {
 152         .flags          = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
 153 };
 154
 155 static struct platform_device at2440evb_device_eth = {
 156         .name           = "dm9000",
 157         .id             = -1,
 158         .num_resources  = ARRAY_SIZE(at2440evb_dm9k_resource),
 159         .resource       = at2440evb_dm9k_resource,
 160         .dev            = {
 161                 .platform_data  = &at2440evb_dm9k_pdata,
 162         },
 163 };
 164
 165 static struct platform_device *at2440evb_devices[] __initdata = {
 166         &s3c_device_usb,
 167         &s3c_device_wdt,
 168         &s3c_device_adc,
 169         &s3c_device_i2c,
 170         &s3c_device_rtc,
 171         &s3c_device_nand,
 172         &at2440evb_device_eth,
 173 };
 174
 175 static void __init at2440evb_map_io(void)
 176 {
 177         s3c_device_nand.dev.platform_data = &at2440evb_nand_info;
 178
 179         s3c24xx_init_io(at2440evb_iodesc, ARRAY_SIZE(at2440evb_iodesc));
 180         s3c24xx_init_clocks(16934400);
 181         s3c24xx_init_uarts(at2440evb_uartcfgs, ARRAY_SIZE(at2440evb_uartcfgs));
 182 }
 183
 184 static void __init at2440evb_init(void)
 185 {
 186         platform_add_devices(at2440evb_devices, ARRAY_SIZE(at2440evb_devices));
 187 }
 188
 189
 190 MACHINE_START(AT2440EVB, "AT2440EVB")
 191         .phys_io        = S3C2410_PA_UART,
 192         .io_pg_offst    = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
 193         .boot_params    = S3C2410_SDRAM_PA + 0x100,
 194         .map_io         = at2440evb_map_io,
 195         .init_machine   = at2440evb_init,
 196         .init_irq       = s3c24xx_init_irq,
 197         .timer          = &s3c24xx_timer,
 198 MACHINE_END