target/linux/ar7-2.6/patches/100-board_support.patch

   1 diff -Nru linux-2.6.19.2/arch/mips/Kconfig linux-ar7/arch/mips/Kconfig
   2 --- linux-2.6.19.2/arch/mips/Kconfig    2006-12-12 02:32:53.000000000 +0700
   3 +++ linux-ar7/arch/mips/Kconfig 2007-01-29 21:52:21.000000000 +0700
   4 @@ -12,6 +12,18 @@
   5         prompt "System type"
   6         default SGI_IP22
   7
   8 +config AR7
   9 +       bool "Texas Instruments AR7"
  10 +       select BOOT_ELF32
  11 +       select DMA_NONCOHERENT
  12 +       select HW_HAS_PCI
  13 +       select IRQ_CPU
  14 +       select SWAP_IO_SPACE
  15 +       select SYS_HAS_CPU_MIPS32_R1
  16 +       select SYS_SUPPORTS_32BIT_KERNEL
  17 +       select SYS_SUPPORTS_LITTLE_ENDIAN
  18 +       select NEED_MULTIPLE_NODES
  19 +
  20  config MIPS_MTX1
  21         bool "4G Systems MTX-1 board"
  22         select DMA_NONCOHERENT
  23 diff -Nru linux-2.6.19.2/arch/mips/Makefile linux-ar7/arch/mips/Makefile
  24 --- linux-2.6.19.2/arch/mips/Makefile   2006-12-12 02:32:53.000000000 +0700
  25 +++ linux-ar7/arch/mips/Makefile        2007-01-29 21:52:21.000000000 +0700
  26 @@ -158,6 +158,13 @@
  27  #
  28
  29  #
  30 +# Texas Instruments AR7
  31 +#
  32 +core-$(CONFIG_AR7)             += arch/mips/ar7/
  33 +cflags-$(CONFIG_AR7)           += -Iinclude/asm-mips/ar7
  34 +load-$(CONFIG_AR7)             += 0xffffffff94100000
  35 +
  36 +#
  37  # Acer PICA 61, Mips Magnum 4000 and Olivetti M700.
  38  #
  39  core-$(CONFIG_MACH_JAZZ)       += arch/mips/jazz/
  40 diff -Nru linux-2.6.19.2/arch/mips/kernel/setup.c linux-ar7/arch/mips/kernel/setup.c
  41 --- linux-2.6.19.2orig/arch/mips/kernel/setup.c 2006-12-12 02:32:53.000000000 +0700
  42 +++ linux-ar7/arch/mips/kernel/setup.c  2007-03-04 22:32:13.000000000 +0700
  43 @@ -236,7 +236,7 @@
  44   * Initialize the bootmem allocator. It also setup initrd related data
  45   * if needed.
  46   */
  47 -#ifdef CONFIG_SGI_IP27
  48 +#ifdef CONFIG_NEED_MULTIPLE_NODES
  49
  50  static void __init bootmem_init(void)
  51  {
  52 @@ -244,7 +244,7 @@
  53         finalize_initrd();
  54  }
  55
  56 -#else  /* !CONFIG_SGI_IP27 */
  57 +#else  /* !CONFIG_NEED_MULTIPLE_NODES */
  58
  59  static void __init bootmem_init(void)
  60  {
  61 @@ -349,7 +349,7 @@
  62         finalize_initrd();
  63  }
  64
  65 -#endif /* CONFIG_SGI_IP27 */
  66 +#endif /* CONFIG_NEED_MULTIPLE_NODES */
  67
  68  /*
  69   * arch_mem_init - initialize memory managment subsystem
  70 diff -Nru linux-2.6.19.2/arch/mips/kernel/traps.c linux-ar7/arch/mips/kernel/traps.c
  71 --- linux-2.6.19.2/arch/mips/kernel/traps.c     2007-01-11 02:10:37.000000000 +0700
  72 +++ linux-ar7/arch/mips/kernel/traps.c  2007-03-15 13:19:19.000000000 +0700
  73 @@ -1072,11 +1072,6 @@
  74  unsigned long exception_handlers[32];
  75  unsigned long vi_handlers[64];
  76
  77 -/*
  78 - * As a side effect of the way this is implemented we're limited
  79 - * to interrupt handlers in the address range from
  80 - * KSEG0 <= x < KSEG0 + 256mb on the Nevada.  Oh well ...
  81 - */
  82  void *set_except_vector(int n, void *addr)
  83  {
  84         unsigned long handler = (unsigned long) addr;
  85 @@ -1084,9 +1079,15 @@
  86
  87         exception_handlers[n] = handler;
  88         if (n == 0 && cpu_has_divec) {
  89 -               *(volatile u32 *)(ebase + 0x200) = 0x08000000 |
  90 -                                                (0x03ffffff & (handler >> 2));
  91 -               flush_icache_range(ebase + 0x200, ebase + 0x204);
  92 +               /* lui k0, 0x0000 */
  93 +               *(volatile u32 *)(CAC_BASE+0x200) = 0x3c1a0000 | (handler >> 16);
  94 +               /* ori k0, 0x0000 */
  95 +               *(volatile u32 *)(CAC_BASE+0x204) = 0x375a0000 | (handler & 0xffff);
  96 +               /* jr k0 */
  97 +               *(volatile u32 *)(CAC_BASE+0x208) = 0x03400008;
  98 +               /* nop */
  99 +               *(volatile u32 *)(CAC_BASE+0x20C) = 0x00000000;
 100 +               flush_icache_range(CAC_BASE+0x200, CAC_BASE+0x210);
 101         }
 102         return (void *)old_handler;
 103  }