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

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Sam440ep board specific routines based off bamboo.c code
   4  * original copyrights below
   5  *
   6  * Wade Farnsworth <wfarnsworth@mvista.com>
   7  * Copyright 2004 MontaVista Software Inc.
   8  *
   9  * Rewritten and ported to the merged powerpc tree:
  10  * Josh Boyer <jwboyer@linux.vnet.ibm.com>
  11  * Copyright 2007 IBM Corporation
  12  *
  13  * Modified from bamboo.c for sam440ep:
  14  * Copyright 2008 Giuseppe Coviello <gicoviello@gmail.com>
  15  */
  16 #include <linux/init.h>
  17 #include <linux/of_platform.h>
  18
  19 #include <asm/machdep.h>
  20 #include <asm/prom.h>
  21 #include <asm/udbg.h>
  22 #include <asm/time.h>
  23 #include <asm/uic.h>
  24 #include <asm/pci-bridge.h>
  25 #include <asm/ppc4xx.h>
  26 #include <linux/i2c.h>
  27
  28 static const struct of_device_id sam440ep_of_bus[] __initconst = {
  29         { .compatible = "ibm,plb4", },
  30         { .compatible = "ibm,opb", },
  31         { .compatible = "ibm,ebc", },
  32         {},
  33 };
  34
  35 static int __init sam440ep_device_probe(void)
  36 {
  37         of_platform_bus_probe(NULL, sam440ep_of_bus, NULL);
  38
  39         return 0;
  40 }
  41 machine_device_initcall(sam440ep, sam440ep_device_probe);
  42
  43 static int __init sam440ep_probe(void)
  44 {
  45         if (!of_machine_is_compatible("acube,sam440ep"))
  46                 return 0;
  47
  48         pci_set_flags(PCI_REASSIGN_ALL_RSRC);
  49
  50         return 1;
  51 }
  52
  53 define_machine(sam440ep) {
  54         .name                   = "Sam440ep",
  55         .probe                  = sam440ep_probe,
  56         .progress               = udbg_progress,
  57         .init_IRQ               = uic_init_tree,
  58         .get_irq                = uic_get_irq,
  59         .restart                = ppc4xx_reset_system,
  60         .calibrate_decr         = generic_calibrate_decr,
  61 };
  62
  63 static struct i2c_board_info sam440ep_rtc_info = {
  64         .type = "m41st85",
  65         .addr = 0x68,
  66         .irq = -1,
  67 };
  68
  69 static int __init sam440ep_setup_rtc(void)
  70 {
  71         return i2c_register_board_info(0, &sam440ep_rtc_info, 1);
  72 }
  73 machine_device_initcall(sam440ep, sam440ep_setup_rtc);