arch/arm/mach-omap1/board-generic.c

   1 /*
   2  * linux/arch/arm/mach-omap1/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/gpio.h>
  26 #include <asm/arch/mux.h>
  27 #include <asm/arch/usb.h>
  28 #include <asm/arch/board.h>
  29 #include <asm/arch/common.h>
  30
  31 static int __initdata generic_serial_ports[OMAP_MAX_NR_PORTS] = {1, 1, 1};
  32
  33 static void __init omap_generic_init_irq(void)
  34 {
  35         omap_init_irq();
  36 }
  37
  38 /* assume no Mini-AB port */
  39
  40 #ifdef CONFIG_ARCH_OMAP1510
  41 static struct omap_usb_config generic1510_usb_config __initdata = {
  42         .register_host  = 1,
  43         .register_dev   = 1,
  44         .hmc_mode       = 16,
  45         .pins[0]        = 3,
  46 };
  47 #endif
  48
  49 #if defined(CONFIG_ARCH_OMAP16XX)
  50 static struct omap_usb_config generic1610_usb_config __initdata = {
  51 #ifdef CONFIG_USB_OTG
  52         .otg            = 1,
  53 #endif
  54         .register_host  = 1,
  55         .register_dev   = 1,
  56         .hmc_mode       = 16,
  57         .pins[0]        = 6,
  58 };
  59
  60 static struct omap_mmc_config generic_mmc_config __initdata = {
  61         .mmc [0] = {
  62                 .enabled        = 0,
  63                 .wire4          = 0,
  64                 .wp_pin         = -1,
  65                 .power_pin      = -1,
  66                 .switch_pin     = -1,
  67         },
  68         .mmc [1] = {
  69                 .enabled        = 0,
  70                 .wire4          = 0,
  71                 .wp_pin         = -1,
  72                 .power_pin      = -1,
  73                 .switch_pin     = -1,
  74         },
  75 };
  76
  77 #endif
  78
  79 static struct omap_board_config_kernel generic_config[] = {
  80         { OMAP_TAG_USB,           NULL },
  81         { OMAP_TAG_MMC,           &generic_mmc_config },
  82 };
  83
  84 static void __init omap_generic_init(void)
  85 {
  86         const struct omap_uart_config *uart_conf;
  87
  88         /*
  89          * Make sure the serial ports are muxed on at this point.
  90          * You have to mux them off in device drivers later on
  91          * if not needed.
  92          */
  93 #ifdef CONFIG_ARCH_OMAP1510
  94         if (cpu_is_omap1510()) {
  95                 generic_config[0].data = &generic1510_usb_config;
  96         }
  97 #endif
  98 #if defined(CONFIG_ARCH_OMAP16XX)
  99         if (!cpu_is_omap1510()) {
 100                 generic_config[0].data = &generic1610_usb_config;
 101         }
 102 #endif
 103
 104         uart_conf = omap_get_config(OMAP_TAG_UART, struct omap_uart_config);
 105         if (uart_conf != NULL) {
 106                 unsigned int enabled_ports, i;
 107
 108                 enabled_ports = uart_conf->enabled_uarts;
 109                 for (i = 0; i < 3; i++) {
 110                         if (!(enabled_ports & (1 << i)))
 111                                 generic_serial_ports[i] = 0;
 112                 }
 113         }
 114
 115         omap_board_config = generic_config;
 116         omap_board_config_size = ARRAY_SIZE(generic_config);
 117         omap_serial_init(generic_serial_ports);
 118 }
 119
 120 static void __init omap_generic_map_io(void)
 121 {
 122         omap_map_common_io();
 123 }
 124
 125 MACHINE_START(OMAP_GENERIC, "Generic OMAP1510/1610/1710")
 126         /* Maintainer: Tony Lindgren <tony@atomide.com> */
 127         .phys_ram       = 0x10000000,
 128         .phys_io        = 0xfff00000,
 129         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
 130         .boot_params    = 0x10000100,
 131         .map_io         = omap_generic_map_io,
 132         .init_irq       = omap_generic_init_irq,
 133         .init_machine   = omap_generic_init,
 134         .timer          = &omap_timer,
 135 MACHINE_END