io.c

   1 /* arch/arm/mach-rk30/io.c
   2  *
   3  * Copyright (C) 2011 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
  20 #include <asm/page.h>
  21 #include <asm/mach/map.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         RK30_DEVICE(ROM),
  32         RK30_DEVICE(CORE),
  33         RK30_DEVICE(CPU_AXI_BUS),
  34 #if CONFIG_RK_DEBUG_UART == 0
  35         RK30_DEVICE(UART0),
  36 #elif CONFIG_RK_DEBUG_UART == 1
  37         RK30_DEVICE(UART1),
  38 #elif CONFIG_RK_DEBUG_UART == 2
  39         RK30_DEVICE(UART2),
  40 #elif CONFIG_RK_DEBUG_UART == 3
  41         RK30_DEVICE(UART3),
  42 #endif
  43         RK30_DEVICE(GRF),
  44         RK30_DEVICE(CRU),
  45         RK30_DEVICE(PMU),
  46         RK30_DEVICE(GPIO0),
  47         RK30_DEVICE(GPIO1),
  48         RK30_DEVICE(GPIO2),
  49         RK30_DEVICE(GPIO3),
  50 #if !defined(CONFIG_ARCH_RK3066B)
  51         RK30_DEVICE(GPIO4),
  52         RK30_DEVICE(GPIO6),
  53 #endif
  54         RK30_DEVICE(TIMER0),
  55         RK30_DEVICE(TIMER1),
  56         RK30_DEVICE(TIMER2),
  57         RK30_DEVICE(PWM01),
  58         RK30_DEVICE(PWM23),
  59         RK30_DEVICE(DDR_PCTL),
  60         RK30_DEVICE(DDR_PUBL),
  61         RK30_DEVICE(I2C1),
  62 };
  63
  64 void __init rk30_map_common_io(void)
  65 {
  66         iotable_init(rk30_io_desc, ARRAY_SIZE(rk30_io_desc));
  67 }