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 #include <asm/arch/usb.h>
  29 #include <asm/arch/board.h>
  30
  31 #include "common.h"
  32
  33 extern void __init omap_init_time(void);
  34
  35 static void __init omap_generic_init_irq(void)
  36 {
  37         omap_init_irq();
  38 }
  39
  40 /*
  41  * Muxes the serial ports on
  42  */
  43 #ifdef CONFIG_ARCH_OMAP1510
  44 static void __init omap_early_serial_init(void)
  45 {
  46 #ifdef CONFIG_OMAP_LL_DEBUG_UART1
  47         omap_cfg_reg(UART1_TX);
  48         omap_cfg_reg(UART1_RTS);
  49 #endif
  50
  51 #ifdef CONFIG_OMAP_LL_DEBUG_UART2
  52         omap_cfg_reg(UART2_TX);
  53         omap_cfg_reg(UART2_RTS);
  54 #endif
  55
  56 #ifdef CONFIG_OMAP_LL_DEBUG_UART1
  57         omap_cfg_reg(UART3_TX);
  58         omap_cfg_reg(UART3_RX);
  59 #endif
  60 }
  61 #endif
  62
  63 /* assume no Mini-AB port */
  64
  65 #ifdef CONFIG_ARCH_OMAP1510
  66 static struct omap_usb_config generic1510_usb_config __initdata = {
  67         .register_host  = 1,
  68         .register_dev   = 1,
  69         .hmc_mode       = 16,
  70         .pins[0]        = 3,
  71 };
  72 #endif
  73
  74 #ifdef CONFIG_ARCH_OMAP1610
  75 static struct omap_usb_config generic1610_usb_config __initdata = {
  76         .register_host  = 1,
  77         .register_dev   = 1,
  78         .hmc_mode       = 16,
  79         .pins[0]        = 6,
  80 };
  81 #endif
  82
  83 static struct omap_board_config_kernel generic_config[] = {
  84         { OMAP_TAG_USB,           NULL },
  85 };
  86
  87 static void __init omap_generic_init(void)
  88 {
  89         /*
  90          * Make sure the serial ports are muxed on at this point.
  91          * You have to mux them off in device drivers later on
  92          * if not needed.
  93          */
  94 #ifdef CONFIG_ARCH_OMAP1510
  95         if (cpu_is_omap1510()) {
  96                 omap_early_serial_init();
  97                 generic_config[0].data = &generic1510_usb_config;
  98         }
  99 #endif
 100 #ifdef CONFIG_ARCH_OMAP1610
 101         if (!cpu_is_omap1510()) {
 102                 generic_config[0].data = &generic1610_usb_config;
 103         }
 104 #endif
 105         omap_board_config = generic_config;
 106         omap_board_config_size = ARRAY_SIZE(generic_config);
 107 }
 108
 109 static void __init omap_generic_map_io(void)
 110 {
 111         omap_map_io();
 112 }
 113
 114 MACHINE_START(OMAP_GENERIC, "Generic OMAP1510/1610/1710")
 115         MAINTAINER("Tony Lindgren <tony@atomide.com>")
 116         BOOT_MEM(0x10000000, 0xfff00000, 0xfef00000)
 117         BOOT_PARAMS(0x10000100)
 118         MAPIO(omap_generic_map_io)
 119         INITIRQ(omap_generic_init_irq)
 120         INIT_MACHINE(omap_generic_init)
 121         INITTIME(omap_init_time)
 122 MACHINE_END