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         mxc_arch_reset_init(MX25_IO_ADDRESS(MX25_WDOG_BASE_ADDR));
  58 }
  59
  60 void __init mx25_init_irq(void)
  61 {
  62         mxc_init_irq(MX25_IO_ADDRESS(MX25_AVIC_BASE_ADDR));
  63 }
  64
  65 static struct sdma_script_start_addrs imx25_sdma_script __initdata = {
  66         .ap_2_ap_addr = 729,
  67         .uart_2_mcu_addr = 904,
  68         .per_2_app_addr = 1255,
  69         .mcu_2_app_addr = 834,
  70         .uartsh_2_mcu_addr = 1120,
  71         .per_2_shp_addr = 1329,
  72         .mcu_2_shp_addr = 1048,
  73         .ata_2_mcu_addr = 1560,
  74         .mcu_2_ata_addr = 1479,
  75         .app_2_per_addr = 1189,
  76         .app_2_mcu_addr = 770,
  77         .shp_2_per_addr = 1407,
  78         .shp_2_mcu_addr = 979,
  79 };
  80
  81 static struct sdma_platform_data imx25_sdma_pdata __initdata = {
  82         .fw_name = "sdma-imx25.bin",
  83         .script_addrs = &imx25_sdma_script,
  84 };
  85
  86 static const struct resource imx25_audmux_res[] __initconst = {
  87         DEFINE_RES_MEM(MX25_AUDMUX_BASE_ADDR, SZ_16K),
  88 };
  89
  90 void __init imx25_soc_init(void)
  91 {
  92         mxc_device_init();
  93
  94         /* i.mx25 has the i.mx35 type gpio */
  95         mxc_register_gpio("imx35-gpio", 0, MX25_GPIO1_BASE_ADDR, SZ_16K, MX25_INT_GPIO1, 0);
  96         mxc_register_gpio("imx35-gpio", 1, MX25_GPIO2_BASE_ADDR, SZ_16K, MX25_INT_GPIO2, 0);
  97         mxc_register_gpio("imx35-gpio", 2, MX25_GPIO3_BASE_ADDR, SZ_16K, MX25_INT_GPIO3, 0);
  98         mxc_register_gpio("imx35-gpio", 3, MX25_GPIO4_BASE_ADDR, SZ_16K, MX25_INT_GPIO4, 0);
  99
 100         pinctrl_provide_dummies();
 101         /* i.mx25 has the i.mx35 type sdma */
 102         imx_add_imx_sdma("imx35-sdma", MX25_SDMA_BASE_ADDR, MX25_INT_SDMA, &imx25_sdma_pdata);
 103         /* i.mx25 has the i.mx31 type audmux */
 104         platform_device_register_simple("imx31-audmux", 0, imx25_audmux_res,
 105                                         ARRAY_SIZE(imx25_audmux_res));
 106 }