release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-s3c64xx/mach-real6410.c

   1 /* linux/arch/arm/mach-s3c64xx/mach-real6410.c
   2  *
   3  * Copyright 2010 Darius Augulis <augulis.darius@gmail.com>
   4  * Copyright 2008 Openmoko, Inc.
   5  * Copyright 2008 Simtec Electronics
   6  *      Ben Dooks <ben@simtec.co.uk>
   7  *      http://armlinux.simtec.co.uk/
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12  *
  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/init.h>
  20 #include <linux/dm9000.h>
  21 #include <linux/serial_core.h>
  22 #include <linux/platform_device.h>
  23 #include <asm/mach-types.h>
  24 #include <asm/mach/arch.h>
  25 #include <asm/mach/map.h>
  26 #include <mach/map.h>
  27 #include <mach/s3c6410.h>
  28 #include <mach/regs-srom.h>
  29 #include <plat/cpu.h>
  30 #include <plat/devs.h>
  31 #include <plat/regs-serial.h>
  32
  33 #define UCON (S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK)
  34 #define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB)
  35 #define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
  36
  37 static struct s3c2410_uartcfg real6410_uartcfgs[] __initdata = {
  38         [0] = {
  39                 .hwport = 0,
  40                 .flags  = 0,
  41                 .ucon   = UCON,
  42                 .ulcon  = ULCON,
  43                 .ufcon  = UFCON,
  44         },
  45         [1] = {
  46                 .hwport = 1,
  47                 .flags  = 0,
  48                 .ucon   = UCON,
  49                 .ulcon  = ULCON,
  50                 .ufcon  = UFCON,
  51         },
  52         [2] = {
  53                 .hwport = 2,
  54                 .flags  = 0,
  55                 .ucon   = UCON,
  56                 .ulcon  = ULCON,
  57                 .ufcon  = UFCON,
  58         },
  59         [3] = {
  60                 .hwport = 3,
  61                 .flags  = 0,
  62                 .ucon   = UCON,
  63                 .ulcon  = ULCON,
  64                 .ufcon  = UFCON,
  65         },
  66 };
  67
  68 /* DM9000AEP 10/100 ethernet controller */
  69
  70 static struct resource real6410_dm9k_resource[] = {
  71         [0] = {
  72                 .start  = S3C64XX_PA_XM0CSN1,
  73                 .end    = S3C64XX_PA_XM0CSN1 + 1,
  74                 .flags  = IORESOURCE_MEM
  75         },
  76         [1] = {
  77                 .start  = S3C64XX_PA_XM0CSN1 + 4,
  78                 .end    = S3C64XX_PA_XM0CSN1 + 5,
  79                 .flags  = IORESOURCE_MEM
  80         },
  81         [2] = {
  82                 .start  = S3C_EINT(7),
  83                 .end    = S3C_EINT(7),
  84                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL
  85         }
  86 };
  87
  88 static struct dm9000_plat_data real6410_dm9k_pdata = {
  89         .flags          = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
  90 };
  91
  92 static struct platform_device real6410_device_eth = {
  93         .name           = "dm9000",
  94         .id             = -1,
  95         .num_resources  = ARRAY_SIZE(real6410_dm9k_resource),
  96         .resource       = real6410_dm9k_resource,
  97         .dev            = {
  98                 .platform_data  = &real6410_dm9k_pdata,
  99         },
 100 };
 101
 102 static struct platform_device *real6410_devices[] __initdata = {
 103         &real6410_device_eth,
 104         &s3c_device_hsmmc0,
 105         &s3c_device_hsmmc1,
 106 };
 107
 108 static void __init real6410_map_io(void)
 109 {
 110         s3c64xx_init_io(NULL, 0);
 111         s3c24xx_init_clocks(12000000);
 112         s3c24xx_init_uarts(real6410_uartcfgs, ARRAY_SIZE(real6410_uartcfgs));
 113 }
 114
 115 static void __init real6410_machine_init(void)
 116 {
 117         u32 cs1;
 118
 119         /* configure nCS1 width to 16 bits */
 120
 121         cs1 = __raw_readl(S3C64XX_SROM_BW) &
 122                 ~(S3C64XX_SROM_BW__CS_MASK << S3C64XX_SROM_BW__NCS1__SHIFT);
 123         cs1 |= ((1 << S3C64XX_SROM_BW__DATAWIDTH__SHIFT) |
 124                 (1 << S3C64XX_SROM_BW__WAITENABLE__SHIFT) |
 125                 (1 << S3C64XX_SROM_BW__BYTEENABLE__SHIFT)) <<
 126                         S3C64XX_SROM_BW__NCS1__SHIFT;
 127         __raw_writel(cs1, S3C64XX_SROM_BW);
 128
 129         /* set timing for nCS1 suitable for ethernet chip */
 130
 131         __raw_writel((0 << S3C64XX_SROM_BCX__PMC__SHIFT) |
 132                 (6 << S3C64XX_SROM_BCX__TACP__SHIFT) |
 133                 (4 << S3C64XX_SROM_BCX__TCAH__SHIFT) |
 134                 (1 << S3C64XX_SROM_BCX__TCOH__SHIFT) |
 135                 (13 << S3C64XX_SROM_BCX__TACC__SHIFT) |
 136                 (4 << S3C64XX_SROM_BCX__TCOS__SHIFT) |
 137                 (0 << S3C64XX_SROM_BCX__TACS__SHIFT), S3C64XX_SROM_BC1);
 138
 139         platform_add_devices(real6410_devices, ARRAY_SIZE(real6410_devices));
 140 }
 141
 142 MACHINE_START(REAL6410, "REAL6410")
 143         /* Maintainer: Darius Augulis <augulis.darius@gmail.com> */
 144         .phys_io        = S3C_PA_UART & 0xfff00000,
 145         .io_pg_offst    = (((u32)S3C_VA_UART) >> 18) & 0xfffc,
 146         .boot_params    = S3C64XX_PA_SDRAM + 0x100,
 147
 148         .init_irq       = s3c6410_init_irq,
 149         .map_io         = real6410_map_io,
 150         .init_machine   = real6410_machine_init,
 151         .timer          = &s3c24xx_timer,
 152 MACHINE_END