git.oblomov.eu Git - linux-2.6/blob - arch/arm/mach-stmp37xx/stmp37xx_devb.c

   1 /*
   2  * Freescale STMP37XX development board support
   3  *
   4  * Embedded Alley Solutions, Inc <source@embeddedalley.com>
   5  *
   6  * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
   7  * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.
   8  */
   9
  10 /*
  11  * The code contained herein is licensed under the GNU General Public
  12  * License. You may obtain a copy of the GNU General Public License
  13  * Version 2 or later at the following locations:
  14  *
  15  * http://www.opensource.org/licenses/gpl-license.html
  16  * http://www.gnu.org/copyleft/gpl.html
  17  */
  18 #include <linux/kernel.h>
  19 #include <linux/init.h>
  20 #include <linux/device.h>
  21 #include <linux/platform_device.h>
  22 #include <asm/setup.h>
  23 #include <asm/mach-types.h>
  24 #include <asm/mach/arch.h>
  25
  26 #include <mach/stmp3xxx.h>
  27 #include <mach/pins.h>
  28 #include <mach/pinmux.h>
  29 #include "stmp37xx.h"
  30
  31 /*
  32  * List of STMP37xx development board specific devices
  33  */
  34 static struct platform_device *stmp37xx_devb_devices[] = {
  35         &stmp3xxx_dbguart,
  36 };
  37
  38 static struct pin_desc dbguart_pins_0[] = {
  39         { PINID_PWM0, PIN_FUN3, },
  40         { PINID_PWM1, PIN_FUN3, },
  41 };
  42
  43 static struct pin_group dbguart_pins[] = {
  44         [0] = {
  45                 .pins           = dbguart_pins_0,
  46                 .nr_pins        = ARRAY_SIZE(dbguart_pins_0),
  47         },
  48 };
  49
  50 static int dbguart_pins_control(int id, int request)
  51 {
  52         int r = 0;
  53
  54         if (request)
  55                 r = stmp3xxx_request_pin_group(&dbguart_pins[id], "debug uart");
  56         else
  57                 stmp3xxx_release_pin_group(&dbguart_pins[id], "debug uart");
  58         return r;
  59 }
  60
  61
  62 static void __init stmp37xx_devb_init(void)
  63 {
  64         stmp3xxx_pinmux_init(NR_REAL_IRQS);
  65
  66         /* Init STMP3xxx platform */
  67         stmp3xxx_init();
  68
  69         stmp3xxx_dbguart.dev.platform_data = dbguart_pins_control;
  70         /* Add STMP37xx development board devices */
  71         platform_add_devices(stmp37xx_devb_devices,
  72                         ARRAY_SIZE(stmp37xx_devb_devices));
  73 }
  74
  75 MACHINE_START(STMP37XX, "STMP37XX")
  76         .phys_io        = 0x80000000,
  77         .io_pg_offst    = ((0xf0000000) >> 18) & 0xfffc,
  78         .boot_params    = 0x40000100,
  79         .map_io         = stmp37xx_map_io,
  80         .init_irq       = stmp37xx_init_irq,
  81         .timer          = &stmp3xxx_timer,
  82         .init_machine   = stmp37xx_devb_init,
  83 MACHINE_END