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 #ifdef CONFIG_ARCH_DAVINCI_DA850
  41
  42 static void __init da850_init_machine(void)
  43 {
  44         of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
  45
  46         da8xx_uart_clk_enable();
  47 }
  48
  49 static const char *da850_boards_compat[] __initdata = {
  50         "enbw,cmc",
  51         "ti,da850-evm",
  52         "ti,da850",
  53         NULL,
  54 };
  55
  56 DT_MACHINE_START(DA850_DT, "Generic DA850/OMAP-L138/AM18x")
  57         .map_io         = da850_init,
  58         .init_irq       = da8xx_init_irq,
  59         .timer          = &davinci_timer,
  60         .init_machine   = da850_init_machine,
  61         .dt_compat      = da850_boards_compat,
  62         .init_late      = davinci_init_late,
  63         .restart        = da8xx_restart,
  64 MACHINE_END
  65
  66 #endif