arch/arm/mach-rk2818/board-midsdk.c

   1 /* linux/arch/arm/mach-rk2818/board-midsdk.c
   2  *
   3  * Copyright (C) 2010 ROCKCHIP, Inc.
   4  *
   5  * This software is licensed under the terms of the GNU General Public
   6  * License version 2, as published by the Free Software Foundation, and
   7  * may be copied, distributed, and modified under those terms.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  */
  15
  16 #include <linux/kernel.h>
  17 #include <linux/init.h>
  18 #include <linux/platform_device.h>
  19 #include <linux/input.h>
  20 #include <linux/io.h>
  21 #include <linux/delay.h>
  22
  23 #include <mach/hardware.h>
  24 #include <asm/mach-types.h>
  25 #include <asm/mach/arch.h>
  26 #include <asm/mach/map.h>
  27 #include <asm/mach/flash.h>
  28
  29 #include <mach/irqs.h>
  30 #include <mach/board.h>
  31 #include <mach/rk2818_iomap.h>
  32 #include <mach/iomux.h>
  33 #include <mach/gpio.h>
  34
  35 #include <linux/mtd/nand.h>
  36 #include <linux/mtd/partitions.h>
  37
  38 #include "devices.h"
  39
  40
  41 /* --------------------------------------------------------------------
  42  *  ÉùÃ÷ÁËrk2818_gpioBankÊý×é£¬²¢¶¨ÒåÁËGPIO¼Ä´æÆ÷×éIDºÍ¼Ä´æÆ÷»ùµØÖ·¡£
  43  * -------------------------------------------------------------------- */
  44
  45 static struct rk2818_gpio_bank rk2818_gpioBank[] = {
  46                 {
  47                 .id             = RK2818_ID_PIOA,
  48                 .offset         = RK2818_GPIO0_BASE,
  49                 .clock          = NULL,
  50         },
  51                 {
  52                 .id             = RK2818_ID_PIOB,
  53                 .offset         = RK2818_GPIO0_BASE,
  54                 .clock          = NULL,
  55         },
  56                 {
  57                 .id             = RK2818_ID_PIOC,
  58                 .offset         = RK2818_GPIO0_BASE,
  59                 .clock          = NULL,
  60         },
  61                 {
  62                 .id             = RK2818_ID_PIOD,
  63                 .offset         = RK2818_GPIO0_BASE,
  64                 .clock          = NULL,
  65         },
  66                 {
  67                 .id             = RK2818_ID_PIOE,
  68                 .offset         = RK2818_GPIO1_BASE,
  69                 .clock          = NULL,
  70         },
  71                 {
  72                 .id             = RK2818_ID_PIOF,
  73                 .offset         = RK2818_GPIO1_BASE,
  74                 .clock          = NULL,
  75         },
  76                 {
  77                 .id             = RK2818_ID_PIOG,
  78                 .offset         = RK2818_GPIO1_BASE,
  79                 .clock          = NULL,
  80         },
  81                 {
  82                 .id             = RK2818_ID_PIOH,
  83                 .offset         = RK2818_GPIO1_BASE,
  84                 .clock          = NULL,
  85         }
  86 };
  87
  88 //IOÓ³Éä·½Ê½ÃèÊö £¬Ã¿¸öÎªÒ»¶ÎÏßÐÔÁ¬ÐøÓ³Éä
  89 static struct map_desc rk2818_io_desc[] __initdata = {
  90
  91         {
  92                 .virtual        = RK2818_MCDMA_BASE,                                    //ÐéÄâµØÖ·
  93                 .pfn            = __phys_to_pfn(RK2818_MCDMA_PHYS),    //ÎïÀíµØÖ·£¬ÐëÓëÒ³±í¶ÔÆë
  94                 .length         = RK2818_MCDMA_SIZE,                                                    //³¤¶È
  95                 .type           = MT_DEVICE                                                     //Ó³Éä·½Ê½
  96         },
  97
  98         {
  99                 .virtual        = RK2818_DWDMA_BASE,
 100                 .pfn            = __phys_to_pfn(RK2818_DWDMA_PHYS),
 101                 .length         = RK2818_DWDMA_SIZE,
 102                 .type           = MT_DEVICE
 103         },
 104
 105         {
 106                 .virtual        = RK2818_INTC_BASE,
 107                 .pfn            = __phys_to_pfn(RK2818_INTC_PHYS),
 108                 .length         = RK2818_INTC_SIZE,
 109                 .type           = MT_DEVICE
 110         },
 111
 112         {
 113                 .virtual        = RK2818_ARMDARBITER_BASE,
 114                 .pfn            = __phys_to_pfn(RK2818_ARMDARBITER_PHYS),
 115                 .length         = RK2818_ARMDARBITER_SIZE,
 116                 .type           = MT_DEVICE
 117         },
 118
 119         {
 120                 .virtual        = RK2818_APB_BASE,
 121                 .pfn            = __phys_to_pfn(RK2818_APB_PHYS),
 122                 .length         = 0xa0000,
 123                 .type           = MT_DEVICE
 124         },
 125
 126         {
 127                 .virtual        = RK2818_WDT_BASE,
 128                 .pfn            = __phys_to_pfn(RK2818_WDT_PHYS),
 129                 .length         = 0xa0000,                      ///apb bus i2s i2c spi no map in this
 130                 .type           = MT_DEVICE
 131         },
 132
 133     {
 134                 .virtual        = 0xff400000,           /* for itcm , vir = phy , for reboot */
 135                 .pfn            = __phys_to_pfn(0xff400000),
 136                 .length         = SZ_16K,
 137                 .type           = MT_DEVICE
 138         }
 139
 140 };
 141
 142 static struct platform_device *devices[] __initdata = {
 143         &rk2818_device_uart1,
 144 };
 145
 146 extern struct sys_timer rk2818_timer;
 147
 148 static void __init machine_rk2818_init_irq(void)
 149 {
 150         rk2818_init_irq();
 151         rk2818_gpio_init(rk2818_gpioBank, 8);
 152         rk2818_gpio_irq_setup();
 153 }
 154
 155 static void __init machine_rk2818_board_init(void)
 156 {
 157         platform_add_devices(devices, ARRAY_SIZE(devices));
 158
 159 }
 160
 161 static void __init machine_rk2818_mapio(void)
 162 {
 163         iotable_init(rk2818_io_desc, ARRAY_SIZE(rk2818_io_desc));
 164         rk2818_clock_init();
 165         rk2818_iomux_init();
 166 }
 167
 168 MACHINE_START(RK2818, "rk2818midsdk")
 169
 170 /* UART for LL DEBUG */
 171         .phys_io        = 0x18002000,
 172         .io_pg_offst    = ((0xFF100000) >> 18) & 0xfffc,
 173         .boot_params    = RK2818_SDRAM_PHYS + 0x100,
 174         .map_io         = machine_rk2818_mapio,
 175         .init_irq       = machine_rk2818_init_irq,
 176         .init_machine   = machine_rk2818_board_init,
 177         .timer          = &rk2818_timer,
 178 MACHINE_END