target/linux/ppc40x/patches/003-ppc40x_simple_platform_support.patch

   1 --- a/arch/powerpc/platforms/40x/Kconfig
   2 +++ b/arch/powerpc/platforms/40x/Kconfig
   3 @@ -14,6 +14,15 @@
   4  #      help
   5  #        This option enables support for the CPCI405 board.
   6
   7 +config ACADIA
   8 +       bool "Acadia"
   9 +       depends on 40x
  10 +       default n
  11 +       select PPC40x_SIMPLE
  12 +       select 405EZ
  13 +       help
  14 +         This option enables support for the AMCC 405EZ Acadia evaluation board.
  15 +
  16  config EP405
  17         bool "EP405/EP405PC"
  18         depends on 40x
  19 @@ -93,6 +102,13 @@ config XILINX_VIRTEX_GENERIC_BOARD
  20           Most Virtex designs should use this unless it needs to do some
  21           special configuration at board probe time.
  22
  23 +config PPC40x_SIMPLE
  24 +       bool "Simple PowerPC 40x board support"
  25 +       depends on 40x
  26 +       default n
  27 +       help
  28 +         This option enables the simple PowerPC 40x platform support.
  29 +
  30  # 40x specific CPU modules, selected based on the board above.
  31  config NP405H
  32         bool
  33 @@ -118,6 +134,12 @@ config 405EX
  34         select IBM_NEW_EMAC_EMAC4
  35         select IBM_NEW_EMAC_RGMII
  36
  37 +config 405EZ
  38 +       bool
  39 +       select IBM_NEW_EMAC_NO_FLOW_CTRL
  40 +       select IBM_NEW_EMAC_MAL_CLR_ICINTSTAT
  41 +       select IBM_NEW_EMAC_MAL_COMMON_ERR
  42 +
  43  config 405GPR
  44         bool
  45
  46 --- a/arch/powerpc/platforms/40x/Makefile
  47 +++ b/arch/powerpc/platforms/40x/Makefile
  48 @@ -3,3 +3,4 @@ obj-$(CONFIG_MAKALU)                            += makalu.o
  49  obj-$(CONFIG_WALNUT)                           += walnut.o
  50  obj-$(CONFIG_XILINX_VIRTEX_GENERIC_BOARD)      += virtex.o
  51  obj-$(CONFIG_EP405)                            += ep405.o
  52 +obj-$(CONFIG_PPC40x_SIMPLE)            += ppc40x_simple.o
  53 --- /dev/null
  54 +++ b/arch/powerpc/platforms/40x/ppc40x_simple.c
  55 @@ -0,0 +1,80 @@
  56 +/*
  57 + * Generic PowerPC 40x platform support
  58 + *
  59 + * Copyright 2008 IBM Corporation
  60 + *
  61 + * This program is free software; you can redistribute it and/or modify it
  62 + * under the terms of the GNU General Public License as published by the
  63 + * Free Software Foundation; version 2 of the License.
  64 + *
  65 + * This implements simple platform support for PowerPC 44x chips.  This is
  66 + * mostly used for eval boards or other simple and "generic" 44x boards.  If
  67 + * your board has custom functions or hardware, then you will likely want to
  68 + * implement your own board.c file to accommodate it.
  69 + */
  70 +
  71 +#include <asm/machdep.h>
  72 +#include <asm/pci-bridge.h>
  73 +#include <asm/ppc4xx.h>
  74 +#include <asm/prom.h>
  75 +#include <asm/time.h>
  76 +#include <asm/udbg.h>
  77 +#include <asm/uic.h>
  78 +
  79 +#include <linux/init.h>
  80 +#include <linux/of_platform.h>
  81 +
  82 +static __initdata struct of_device_id ppc40x_of_bus[] = {
  83 +       { .compatible = "ibm,plb3", },
  84 +       { .compatible = "ibm,plb4", },
  85 +       { .compatible = "ibm,opb", },
  86 +       { .compatible = "ibm,ebc", },
  87 +       { .compatible = "simple-bus", },
  88 +       {},
  89 +};
  90 +
  91 +static int __init ppc40x_device_probe(void)
  92 +{
  93 +       of_platform_bus_probe(NULL, ppc40x_of_bus, NULL);
  94 +
  95 +       return 0;
  96 +}
  97 +machine_device_initcall(ppc40x_simple, ppc40x_device_probe);
  98 +
  99 +/* This is the list of boards that can be supported by this simple
 100 + * platform code.  This does _not_ mean the boards are compatible,
 101 + * as they most certainly are not from a device tree perspective.
 102 + * However, their differences are handled by the device tree and the
 103 + * drivers and therefore they don't need custom board support files.
 104 + *
 105 + * Again, if your board needs to do things differently then create a
 106 + * board.c file for it rather than adding it to this list.
 107 + */
 108 +static char *board[] __initdata = {
 109 +       "amcc,acadia"
 110 +};
 111 +
 112 +static int __init ppc40x_probe(void)
 113 +{
 114 +       unsigned long root = of_get_flat_dt_root();
 115 +       int i = 0;
 116 +
 117 +       for (i = 0; i < ARRAY_SIZE(board); i++) {
 118 +               if (of_flat_dt_is_compatible(root, board[i])) {
 119 +                       ppc_pci_flags = PPC_PCI_REASSIGN_ALL_RSRC;
 120 +                       return 1;
 121 +               }
 122 +       }
 123 +
 124 +       return 0;
 125 +}
 126 +
 127 +define_machine(ppc40x_simple) {
 128 +       .name = "PowerPC 40x Platform",
 129 +       .probe = ppc40x_probe,
 130 +       .progress = udbg_progress,
 131 +       .init_IRQ = uic_init_tree,
 132 +       .get_irq = uic_get_irq,
 133 +       .restart = ppc4xx_reset_system,
 134 +       .calibrate_decr = generic_calibrate_decr,
 135 +};