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/arch.h>
  22 #include <asm/mach/map.h>
  23
  24 #include <asm/arch/clocks.h>
  25 #include <asm/arch/gpio.h>
  26 #include <asm/arch/mux.h>
  27
  28 #include "common.h"
  29
  30 static void __init omap_generic_init_irq(void)
  31 {
  32         omap_init_irq();
  33 }
  34
  35 /*
  36  * Muxes the serial ports on
  37  */
  38 static void __init omap_early_serial_init(void)
  39 {
  40         omap_cfg_reg(UART1_TX);
  41         omap_cfg_reg(UART1_RTS);
  42
  43         omap_cfg_reg(UART2_TX);
  44         omap_cfg_reg(UART2_RTS);
  45
  46         omap_cfg_reg(UART3_TX);
  47         omap_cfg_reg(UART3_RX);
  48 }
  49
  50 static void __init omap_generic_init(void)
  51 {
  52         /*
  53          * Make sure the serial ports are muxed on at this point.
  54          * You have to mux them off in device drivers later on
  55          * if not needed.
  56          */
  57         if (cpu_is_omap1510()) {
  58                 omap_early_serial_init();
  59         }
  60 }
  61
  62 static void __init omap_generic_map_io(void)
  63 {
  64         omap_map_io();
  65 }
  66
  67 MACHINE_START(OMAP_GENERIC, "Generic OMAP-1510/1610")
  68         MAINTAINER("Tony Lindgren <tony@atomide.com>")
  69         BOOT_MEM(0x10000000, 0xe0000000, 0xe0000000)
  70         BOOT_PARAMS(0x10000100)
  71         MAPIO(omap_generic_map_io)
  72         INITIRQ(omap_generic_init_irq)
  73         INIT_MACHINE(omap_generic_init)
  74 MACHINE_END