arch/arm/mach-davinci/da8xx-dt.c

   1 /*
   2  * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
   3  *
   4  * Modified from mach-omap/omap2/board-generic.c
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10 #include <linux/io.h>
  11 #include <linux/of_irq.h>
  12 #include <linux/of_platform.h>
  13 #include <linux/irqdomain.h>
  14
  15 #include <asm/mach/arch.h>
  16
  17 #include <mach/common.h>
  18 #include <mach/cp_intc.h>
  19 #include <mach/da8xx.h>
  20
  21 #define DA8XX_NUM_UARTS 3
  22
  23 void __init da8xx_uart_clk_enable(void)
  24 {
  25         int i;
  26         for (i = 0; i < DA8XX_NUM_UARTS; i++)
  27                 davinci_serial_setup_clk(i, NULL);
  28 }
  29
  30 static struct of_device_id da8xx_irq_match[] __initdata = {
  31         { .compatible = "ti,cp-intc", .data = cp_intc_of_init, },
  32         { }
  33 };
  34
  35 static void __init da8xx_init_irq(void)
  36 {
  37         of_irq_init(da8xx_irq_match);
  38 }
  39
  40 struct of_dev_auxdata da850_auxdata_lookup[] __initdata = {
  41         OF_DEV_AUXDATA("ti,davinci-i2c", 0x01c22000, "i2c_davinci.1", NULL),
  42         OF_DEV_AUXDATA("ti,davinci-wdt", 0x01c21000, "watchdog", NULL),
  43         {}
  44 };
  45
  46 #ifdef CONFIG_ARCH_DAVINCI_DA850
  47
  48 static void __init da850_init_machine(void)
  49 {
  50         of_platform_populate(NULL, of_default_bus_match_table,
  51                              da850_auxdata_lookup, NULL);
  52
  53         da8xx_uart_clk_enable();
  54 }
  55
  56 static const char *da850_boards_compat[] __initdata = {
  57         "enbw,cmc",
  58         "ti,da850-evm",
  59         "ti,da850",
  60         NULL,
  61 };
  62
  63 DT_MACHINE_START(DA850_DT, "Generic DA850/OMAP-L138/AM18x")
  64         .map_io         = da850_init,
  65         .init_irq       = da8xx_init_irq,
  66         .init_time      = davinci_timer_init,
  67         .init_machine   = da850_init_machine,
  68         .dt_compat      = da850_boards_compat,
  69         .init_late      = davinci_init_late,
  70         .restart        = da8xx_restart,
  71 MACHINE_END
  72
  73 #endif