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

   1 diff --git a/arch/powerpc/platforms/40x/Kconfig b/arch/powerpc/platforms/40x/Kconfig
   2 index a9260e2..72ba3a7 100644
   3 --- a/arch/powerpc/platforms/40x/Kconfig
   4 +++ b/arch/powerpc/platforms/40x/Kconfig
   5 @@ -14,6 +14,15 @@
   6  #      help
   7  #        This option enables support for the CPCI405 board.
   8
   9 +config ACADIA
  10 +       bool "Acadia"
  11 +       depends on 40x
  12 +       default n
  13 +       select PPC40x_SIMPLE
  14 +       select 405EZ
  15 +       help
  16 +         This option enables support for the AMCC 405EZ Acadia evaluation board.
  17 +
  18  config EP405
  19         bool "EP405/EP405PC"
  20         depends on 40x
  21 @@ -93,6 +102,13 @@ config XILINX_VIRTEX_GENERIC_BOARD
  22           Most Virtex designs should use this unless it needs to do some
  23           special configuration at board probe time.
  24
  25 +config PPC40x_SIMPLE
  26 +       bool "Simple PowerPC 40x board support"
  27 +       depends on 40x
  28 +       default n
  29 +       help
  30 +         This option enables the simple PowerPC 40x platform support.
  31 +
  32  # 40x specific CPU modules, selected based on the board above.
  33  config NP405H
  34         bool
  35 @@ -118,6 +134,12 @@ config 405EX
  36         select IBM_NEW_EMAC_EMAC4
  37         select IBM_NEW_EMAC_RGMII
  38
  39 +config 405EZ
  40 +       bool
  41 +       select IBM_NEW_EMAC_NO_FLOW_CTRL
  42 +       select IBM_NEW_EMAC_MAL_CLR_ICINTSTAT
  43 +       select IBM_NEW_EMAC_MAL_COMMON_ERR
  44 +
  45  config 405GPR
  46         bool
  47
  48 diff --git a/arch/powerpc/platforms/40x/Makefile b/arch/powerpc/platforms/40x/Makefile
  49 index 5533a5c..1d93273 100644
  50 --- a/arch/powerpc/platforms/40x/Makefile
  51 +++ b/arch/powerpc/platforms/40x/Makefile
  52 @@ -3,3 +3,4 @@ obj-$(CONFIG_MAKALU)                            += makalu.o
  53  obj-$(CONFIG_WALNUT)                           += walnut.o
  54  obj-$(CONFIG_XILINX_VIRTEX_GENERIC_BOARD)      += virtex.o
  55  obj-$(CONFIG_EP405)                            += ep405.o
  56 +obj-$(CONFIG_PPC40x_SIMPLE)            += ppc40x_simple.o
  57 diff --git a/arch/powerpc/platforms/40x/ppc40x_simple.c b/arch/powerpc/platforms/40x/ppc40x_simple.c
  58 new file mode 100644
  59 index 0000000..4498a86
  60 --- /dev/null
  61 +++ b/arch/powerpc/platforms/40x/ppc40x_simple.c
  62 @@ -0,0 +1,80 @@
  63 +/*
  64 + * Generic PowerPC 40x platform support
  65 + *
  66 + * Copyright 2008 IBM Corporation
  67 + *
  68 + * This program is free software; you can redistribute it and/or modify it
  69 + * under the terms of the GNU General Public License as published by the
  70 + * Free Software Foundation; version 2 of the License.
  71 + *
  72 + * This implements simple platform support for PowerPC 44x chips.  This is
  73 + * mostly used for eval boards or other simple and "generic" 44x boards.  If
  74 + * your board has custom functions or hardware, then you will likely want to
  75 + * implement your own board.c file to accommodate it.
  76 + */
  77 +
  78 +#include <asm/machdep.h>
  79 +#include <asm/pci-bridge.h>
  80 +#include <asm/ppc4xx.h>
  81 +#include <asm/prom.h>
  82 +#include <asm/time.h>
  83 +#include <asm/udbg.h>
  84 +#include <asm/uic.h>
  85 +
  86 +#include <linux/init.h>
  87 +#include <linux/of_platform.h>
  88 +
  89 +static __initdata struct of_device_id ppc40x_of_bus[] = {
  90 +       { .compatible = "ibm,plb3", },
  91 +       { .compatible = "ibm,plb4", },
  92 +       { .compatible = "ibm,opb", },
  93 +       { .compatible = "ibm,ebc", },
  94 +       { .compatible = "simple-bus", },
  95 +       {},
  96 +};
  97 +
  98 +static int __init ppc40x_device_probe(void)
  99 +{
 100 +       of_platform_bus_probe(NULL, ppc40x_of_bus, NULL);
 101 +
 102 +       return 0;
 103 +}
 104 +machine_device_initcall(ppc40x_simple, ppc40x_device_probe);
 105 +
 106 +/* This is the list of boards that can be supported by this simple
 107 + * platform code.  This does _not_ mean the boards are compatible,
 108 + * as they most certainly are not from a device tree perspective.
 109 + * However, their differences are handled by the device tree and the
 110 + * drivers and therefore they don't need custom board support files.
 111 + *
 112 + * Again, if your board needs to do things differently then create a
 113 + * board.c file for it rather than adding it to this list.
 114 + */
 115 +static char *board[] __initdata = {
 116 +       "amcc,acadia"
 117 +};
 118 +
 119 +static int __init ppc40x_probe(void)
 120 +{
 121 +       unsigned long root = of_get_flat_dt_root();
 122 +       int i = 0;
 123 +
 124 +       for (i = 0; i < ARRAY_SIZE(board); i++) {
 125 +               if (of_flat_dt_is_compatible(root, board[i])) {
 126 +                       ppc_pci_flags = PPC_PCI_REASSIGN_ALL_RSRC;
 127 +                       return 1;
 128 +               }
 129 +       }
 130 +
 131 +       return 0;
 132 +}
 133 +
 134 +define_machine(ppc40x_simple) {
 135 +       .name = "PowerPC 40x Platform",
 136 +       .probe = ppc40x_probe,
 137 +       .progress = udbg_progress,
 138 +       .init_IRQ = uic_init_tree,
 139 +       .get_irq = uic_get_irq,
 140 +       .restart = ppc4xx_reset_system,
 141 +       .calibrate_decr = generic_calibrate_decr,
 142 +};