arch/arm/mach-imx/imx31-dt.c

   1 /*
   2  * Copyright 2012 Sascha Hauer, Pengutronix
   3  *
   4  * The code contained herein is licensed under the GNU General Public
   5  * License. You may obtain a copy of the GNU General Public License
   6  * Version 2 or later at the following locations:
   7  *
   8  * http://www.opensource.org/licenses/gpl-license.html
   9  * http://www.gnu.org/copyleft/gpl.html
  10  */
  11
  12 #include <linux/irq.h>
  13 #include <linux/of_irq.h>
  14 #include <linux/of_platform.h>
  15 #include <asm/mach/arch.h>
  16 #include <asm/mach/time.h>
  17 #include <mach/common.h>
  18 #include <mach/mx31.h>
  19
  20 static const struct of_dev_auxdata imx31_auxdata_lookup[] __initconst = {
  21         OF_DEV_AUXDATA("fsl,imx31-uart", MX31_UART1_BASE_ADDR,
  22                         "imx21-uart.0", NULL),
  23         OF_DEV_AUXDATA("fsl,imx31-uart", MX31_UART2_BASE_ADDR,
  24                         "imx21-uart.1", NULL),
  25         OF_DEV_AUXDATA("fsl,imx31-uart", MX31_UART3_BASE_ADDR,
  26                         "imx21-uart.2", NULL),
  27         OF_DEV_AUXDATA("fsl,imx31-uart", MX31_UART4_BASE_ADDR,
  28                         "imx21-uart.3", NULL),
  29         OF_DEV_AUXDATA("fsl,imx31-uart", MX31_UART5_BASE_ADDR,
  30                         "imx21-uart.4", NULL),
  31         { /* sentinel */ }
  32 };
  33
  34 static void __init imx31_dt_init(void)
  35 {
  36         of_platform_populate(NULL, of_default_bus_match_table,
  37                              imx31_auxdata_lookup, NULL);
  38 }
  39
  40 static void __init imx31_timer_init(void)
  41 {
  42         mx31_clocks_init_dt();
  43 }
  44
  45 static struct sys_timer imx31_timer = {
  46         .init = imx31_timer_init,
  47 };
  48
  49 static const char *imx31_dt_board_compat[] __initdata = {
  50         "fsl,imx31",
  51         NULL
  52 };
  53
  54 DT_MACHINE_START(IMX31_DT, "Freescale i.MX31 (Device Tree Support)")
  55         .map_io         = mx31_map_io,
  56         .init_early     = imx31_init_early,
  57         .init_irq       = mx31_init_irq,
  58         .handle_irq     = imx31_handle_irq,
  59         .timer          = &imx31_timer,
  60         .init_machine   = imx31_dt_init,
  61         .dt_compat      = imx31_dt_board_compat,
  62         .restart        = mxc_restart,
  63 MACHINE_END