arch/arm/mach-imx/devices/platform-mxc_rnga.c

   1 /*
   2  * Copyright (C) 2010 Pengutronix
   3  * Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
   4  *
   5  * This program is free software; you can redistribute it and/or modify it under
   6  * the terms of the GNU General Public License version 2 as published by the
   7  * Free Software Foundation.
   8  */
   9 #include "../hardware.h"
  10 #include "devices-common.h"
  11
  12 struct imx_mxc_rnga_data {
  13         resource_size_t iobase;
  14 };
  15
  16 #define imx_mxc_rnga_data_entry_single(soc)                             \
  17         {                                                               \
  18                 .iobase = soc ## _RNGA_BASE_ADDR,                       \
  19         }
  20
  21 #ifdef CONFIG_SOC_IMX31
  22 static const struct imx_mxc_rnga_data imx31_mxc_rnga_data __initconst =
  23         imx_mxc_rnga_data_entry_single(MX31);
  24 #endif /* ifdef CONFIG_SOC_IMX31 */
  25
  26 static struct platform_device *__init imx_add_mxc_rnga(
  27                 const struct imx_mxc_rnga_data *data)
  28 {
  29         struct resource res[] = {
  30                 {
  31                         .start = data->iobase,
  32                         .end = data->iobase + SZ_16K - 1,
  33                         .flags = IORESOURCE_MEM,
  34                 },
  35         };
  36         return imx_add_platform_device("mxc_rnga", -1,
  37                         res, ARRAY_SIZE(res), NULL, 0);
  38 }
  39
  40 static int __init imxXX_add_mxc_rnga(void)
  41 {
  42         struct platform_device *ret;
  43
  44 #if defined(CONFIG_SOC_IMX31)
  45         if (cpu_is_mx31())
  46                 ret = imx_add_mxc_rnga(&imx31_mxc_rnga_data);
  47         else
  48 #endif /* if defined(CONFIG_SOC_IMX31) */
  49                 ret = ERR_PTR(-ENODEV);
  50
  51         return PTR_ERR_OR_ZERO(ret);
  52 }
  53 arch_initcall(imxXX_add_mxc_rnga);