arch/arm/mach-imx/mm-imx25.c

   1 /*
   2  *  Copyright (C) 1999,2000 Arm Limited
   3  *  Copyright (C) 2000 Deep Blue Solutions Ltd
   4  *  Copyright (C) 2002 Shane Nay (shane@minirl.com)
   5  *  Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
   6  *    - add MX31 specific definitions
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  */
  18
  19 #include <linux/mm.h>
  20 #include <linux/init.h>
  21 #include <linux/err.h>
  22 #include <linux/pinctrl/machine.h>
  23
  24 #include <asm/pgtable.h>
  25 #include <asm/mach/map.h>
  26
  27 #include "common.h"
  28 #include "devices/devices-common.h"
  29 #include "hardware.h"
  30 #include "iomux-v3.h"
  31 #include "mx25.h"
  32
  33 /*
  34  * This table defines static virtual address mappings for I/O regions.
  35  * These are the mappings common across all MX25 boards.
  36  */
  37 static struct map_desc mx25_io_desc[] __initdata = {
  38         imx_map_entry(MX25, AVIC, MT_DEVICE_NONSHARED),
  39         imx_map_entry(MX25, AIPS1, MT_DEVICE_NONSHARED),
  40         imx_map_entry(MX25, AIPS2, MT_DEVICE_NONSHARED),
  41 };
  42
  43 /*
  44  * This function initializes the memory map. It is called during the
  45  * system startup to create static physical to virtual memory mappings
  46  * for the IO modules.
  47  */
  48 void __init mx25_map_io(void)
  49 {
  50         iotable_init(mx25_io_desc, ARRAY_SIZE(mx25_io_desc));
  51 }
  52
  53 void __init imx25_init_early(void)
  54 {
  55         mxc_set_cpu_type(MXC_CPU_MX25);
  56         mxc_iomux_v3_init(MX25_IO_ADDRESS(MX25_IOMUXC_BASE_ADDR));
  57 }
  58
  59 void __init mx25_init_irq(void)
  60 {
  61         mxc_init_irq(MX25_IO_ADDRESS(MX25_AVIC_BASE_ADDR));
  62 }
  63
  64 static struct sdma_platform_data imx25_sdma_pdata __initdata = {
  65         .fw_name = "sdma-imx25.bin",
  66 };
  67
  68 static const struct resource imx25_audmux_res[] __initconst = {
  69         DEFINE_RES_MEM(MX25_AUDMUX_BASE_ADDR, SZ_16K),
  70 };
  71
  72 void __init imx25_soc_init(void)
  73 {
  74         mxc_arch_reset_init(MX25_IO_ADDRESS(MX25_WDOG_BASE_ADDR));
  75         mxc_device_init();
  76
  77         /* i.mx25 has the i.mx35 type gpio */
  78         mxc_register_gpio("imx35-gpio", 0, MX25_GPIO1_BASE_ADDR, SZ_16K, MX25_INT_GPIO1, 0);
  79         mxc_register_gpio("imx35-gpio", 1, MX25_GPIO2_BASE_ADDR, SZ_16K, MX25_INT_GPIO2, 0);
  80         mxc_register_gpio("imx35-gpio", 2, MX25_GPIO3_BASE_ADDR, SZ_16K, MX25_INT_GPIO3, 0);
  81         mxc_register_gpio("imx35-gpio", 3, MX25_GPIO4_BASE_ADDR, SZ_16K, MX25_INT_GPIO4, 0);
  82
  83         pinctrl_provide_dummies();
  84         /* i.mx25 has the i.mx35 type sdma */
  85         imx_add_imx_sdma("imx35-sdma", MX25_SDMA_BASE_ADDR, MX25_INT_SDMA, &imx25_sdma_pdata);
  86         /* i.mx25 has the i.mx31 type audmux */
  87         platform_device_register_simple("imx31-audmux", 0, imx25_audmux_res,
  88                                         ARRAY_SIZE(imx25_audmux_res));
  89 }