arch/arm/mach-rk3188/io.c

   1 /*
   2  *
   3  * Copyright (C) 2013 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/io.h>
  19 #include <asm/page.h>
  20 #include <asm/mach/map.h>
  21 #include <mach/debug_uart.h>
  22
  23 #define RK30_DEVICE(name) { \
  24                 .virtual = (unsigned long) RK30_##name##_BASE, \
  25                 .pfn = __phys_to_pfn(RK30_##name##_PHYS), \
  26                 .length = RK30_##name##_SIZE, \
  27                 .type = MT_DEVICE, \
  28         }
  29
  30 static struct map_desc rk30_io_desc[] __initdata = {
  31         {
  32                 .virtual = (unsigned long) RK30_ROM_BASE,
  33                 .pfn = __phys_to_pfn(RK3188_ROM_PHYS),
  34                 .length = RK30_ROM_SIZE,
  35                 .type = MT_DEVICE,
  36         },
  37         RK30_DEVICE(CORE),
  38         RK30_DEVICE(CPU_AXI_BUS),
  39 #if CONFIG_RK_DEBUG_UART == 0
  40         RK30_DEVICE(UART0),
  41 #elif CONFIG_RK_DEBUG_UART == 1
  42         RK30_DEVICE(UART1),
  43 #elif CONFIG_RK_DEBUG_UART == 2
  44         RK30_DEVICE(UART2),
  45 #elif CONFIG_RK_DEBUG_UART == 3
  46         RK30_DEVICE(UART3),
  47 #endif
  48         RK30_DEVICE(GRF),
  49         RK30_DEVICE(CRU),
  50         RK30_DEVICE(PMU),
  51         RK30_DEVICE(GPIO0),
  52         RK30_DEVICE(GPIO1),
  53         RK30_DEVICE(GPIO2),
  54         RK30_DEVICE(GPIO3),
  55         RK30_DEVICE(TIMER0),
  56         RK30_DEVICE(EFUSE),
  57         {
  58                 .virtual = (unsigned long) RK3188_TIMER3_BASE,
  59                 .pfn = __phys_to_pfn(RK3188_TIMER3_PHYS),
  60                 .length = RK3188_TIMER3_SIZE,
  61                 .type = MT_DEVICE,
  62         },
  63         RK30_DEVICE(PWM01),
  64         RK30_DEVICE(PWM23),
  65         RK30_DEVICE(DDR_PCTL),
  66         RK30_DEVICE(DDR_PUBL),
  67         RK30_DEVICE(I2C1),
  68 };
  69
  70 void __init rk30_map_common_io(void)
  71 {
  72         iotable_init(rk30_io_desc, ARRAY_SIZE(rk30_io_desc));
  73 }