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Linux/arch/powerpc/platforms/44x/sam440ep.c

  1 /*
  2  * Sam440ep board specific routines based off bamboo.c code
  3  * original copyrights below
  4  *
  5  * Wade Farnsworth <wfarnsworth@mvista.com>
  6  * Copyright 2004 MontaVista Software Inc.
  7  *
  8  * Rewritten and ported to the merged powerpc tree:
  9  * Josh Boyer <jwboyer@linux.vnet.ibm.com>
 10  * Copyright 2007 IBM Corporation
 11  *
 12  * Modified from bamboo.c for sam440ep:
 13  * Copyright 2008 Giuseppe Coviello <gicoviello@gmail.com>
 14  *
 15  * This program is free software; you can redistribute  it and/or modify it
 16  * under  the terms of  the GNU General  Public License as published by the
 17  * Free Software Foundation;  either version 2 of the  License, or (at your
 18  * option) any later version.
 19  */
 20 #include <linux/init.h>
 21 #include <linux/of_platform.h>
 22 
 23 #include <asm/machdep.h>
 24 #include <asm/prom.h>
 25 #include <asm/udbg.h>
 26 #include <asm/time.h>
 27 #include <asm/uic.h>
 28 #include <asm/pci-bridge.h>
 29 #include <asm/ppc4xx.h>
 30 #include <linux/i2c.h>
 31 
 32 static __initdata struct of_device_id sam440ep_of_bus[] = {
 33         { .compatible = "ibm,plb4", },
 34         { .compatible = "ibm,opb", },
 35         { .compatible = "ibm,ebc", },
 36         {},
 37 };
 38 
 39 static int __init sam440ep_device_probe(void)
 40 {
 41         of_platform_bus_probe(NULL, sam440ep_of_bus, NULL);
 42 
 43         return 0;
 44 }
 45 machine_device_initcall(sam440ep, sam440ep_device_probe);
 46 
 47 static int __init sam440ep_probe(void)
 48 {
 49         unsigned long root = of_get_flat_dt_root();
 50 
 51         if (!of_flat_dt_is_compatible(root, "acube,sam440ep"))
 52                 return 0;
 53 
 54         pci_set_flags(PCI_REASSIGN_ALL_RSRC);
 55 
 56         return 1;
 57 }
 58 
 59 define_machine(sam440ep) {
 60         .name                   = "Sam440ep",
 61         .probe                  = sam440ep_probe,
 62         .progress               = udbg_progress,
 63         .init_IRQ               = uic_init_tree,
 64         .get_irq                = uic_get_irq,
 65         .restart                = ppc4xx_reset_system,
 66         .calibrate_decr         = generic_calibrate_decr,
 67 };
 68 
 69 static struct i2c_board_info sam440ep_rtc_info = {
 70         .type = "m41st85",
 71         .addr = 0x68,
 72         .irq = -1,
 73 };
 74 
 75 static int sam440ep_setup_rtc(void)
 76 {
 77         return i2c_register_board_info(0, &sam440ep_rtc_info, 1);
 78 }
 79 machine_device_initcall(sam440ep, sam440ep_setup_rtc);
 80 

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