kernel/linux/arch/arm/mach-omap/board-generic.c

   1 /*
   2  * linux/arch/arm/mach-omap/board-generic.c
   3  *
   4  * Modified from board-innovator1510.c
   5  *
   6  * Code for generic OMAP board. Should work on many OMAP systems where
   7  * the device drivers take care of all the necessary hardware initialization.
   8  * Do not put any board specific code to this file; create a new machine
   9  * type if you need custom low-level initializations.
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License version 2 as
  13  * published by the Free Software Foundation.
  14  */
  15
  16 #include <linux/kernel.h>
  17 #include <linux/init.h>
  18 #include <linux/device.h>
  19
  20 #include <asm/hardware.h>
  21 #include <asm/mach-types.h>
  22 #include <asm/mach/arch.h>
  23 #include <asm/mach/map.h>
  24
  25 #include <asm/arch/clocks.h>
  26 #include <asm/arch/gpio.h>
  27 #include <asm/arch/mux.h>
  28
  29 #include "common.h"
  30
  31 static void __init omap_generic_init_irq(void)
  32 {
  33         omap_init_irq();
  34 }
  35
  36 /*
  37  * Muxes the serial ports on
  38  */
  39 static void __init omap_early_serial_init(void)
  40 {
  41         omap_cfg_reg(UART1_TX);
  42         omap_cfg_reg(UART1_RTS);
  43
  44         omap_cfg_reg(UART2_TX);
  45         omap_cfg_reg(UART2_RTS);
  46
  47         omap_cfg_reg(UART3_TX);
  48         omap_cfg_reg(UART3_RX);
  49 }
  50
  51 static void __init omap_generic_init(void)
  52 {
  53         /*
  54          * Make sure the serial ports are muxed on at this point.
  55          * You have to mux them off in device drivers later on
  56          * if not needed.
  57          */
  58         if (cpu_is_omap1510()) {
  59                 omap_early_serial_init();
  60         }
  61 }
  62
  63 static void __init omap_generic_map_io(void)
  64 {
  65         omap_map_io();
  66 }
  67
  68 static void __init omap_generic_init_time(void)
  69 {
  70         omap_init_time();
  71 }
  72
  73 MACHINE_START(OMAP_GENERIC, "Generic OMAP-1510/1610/1710")
  74         MAINTAINER("Tony Lindgren <tony@atomide.com>")
  75         BOOT_MEM(0x10000000, 0xfff00000, 0xfef00000)
  76         BOOT_PARAMS(0x10000100)
  77         MAPIO(omap_generic_map_io)
  78         INITIRQ(omap_generic_init_irq)
  79         INIT_MACHINE(omap_generic_init)
  80         INITTIME(omap_generic_init_time)
  81 MACHINE_END
  82