target/linux/brcm47xx-2.6/patches-2.6.22/130-remove_scache.patch

   1 Index: linux-2.6.22-rc4/arch/mips/Kconfig
   2 ===================================================================
   3 --- linux-2.6.22-rc4.orig/arch/mips/Kconfig     2007-06-10 21:33:12.000000000 +0100
   4 +++ linux-2.6.22-rc4/arch/mips/Kconfig  2007-06-10 21:33:17.000000000 +0100
   5 @@ -202,7 +202,6 @@
   6         select I8259
   7         select MIPS_BOARDS_GEN
   8         select MIPS_BONITO64
   9 -       select MIPS_CPU_SCACHE
  10         select PCI_GT64XXX_PCI0
  11         select MIPS_MSC
  12         select SWAP_IO_SPACE
  13 @@ -1345,13 +1344,6 @@
  14         bool
  15         select BOARD_SCACHE
  16
  17 -#
  18 -# Support for a MIPS32 / MIPS64 style S-caches
  19 -#
  20 -config MIPS_CPU_SCACHE
  21 -       bool
  22 -       select BOARD_SCACHE
  23 -
  24  config R5000_CPU_SCACHE
  25         bool
  26         select BOARD_SCACHE
  27 Index: linux-2.6.22-rc4/arch/mips/kernel/cpu-probe.c
  28 ===================================================================
  29 --- linux-2.6.22-rc4.orig/arch/mips/kernel/cpu-probe.c  2007-06-10 21:33:12.000000000 +0100
  30 +++ linux-2.6.22-rc4/arch/mips/kernel/cpu-probe.c       2007-06-10 21:33:17.000000000 +0100
  31 @@ -619,6 +619,8 @@
  32                 break;
  33         case PRID_IMP_25KF:
  34                 c->cputype = CPU_25KF;
  35 +               /* Probe for L2 cache */
  36 +               c->scache.flags &= ~MIPS_CACHE_NOT_PRESENT;
  37                 break;
  38         case PRID_IMP_34K:
  39                 c->cputype = CPU_34K;
  40 Index: linux-2.6.22-rc4/arch/mips/mm/c-r4k.c
  41 ===================================================================
  42 --- linux-2.6.22-rc4.orig/arch/mips/mm/c-r4k.c  2007-06-10 21:32:13.000000000 +0100
  43 +++ linux-2.6.22-rc4/arch/mips/mm/c-r4k.c       2007-06-10 21:33:17.000000000 +0100
  44 @@ -1038,7 +1038,6 @@
  45
  46  extern int r5k_sc_init(void);
  47  extern int rm7k_sc_init(void);
  48 -extern int mips_sc_init(void);
  49
  50  static void __init setup_scache(void)
  51  {
  52 @@ -1086,29 +1085,17 @@
  53                 return;
  54
  55         default:
  56 -               if (c->isa_level == MIPS_CPU_ISA_M32R1 ||
  57 -                   c->isa_level == MIPS_CPU_ISA_M32R2 ||
  58 -                   c->isa_level == MIPS_CPU_ISA_M64R1 ||
  59 -                   c->isa_level == MIPS_CPU_ISA_M64R2) {
  60 -#ifdef CONFIG_MIPS_CPU_SCACHE
  61 -                       if (mips_sc_init ()) {
  62 -                               scache_size = c->scache.ways * c->scache.sets * c->scache.linesz;
  63 -                               printk("MIPS secondary cache %ldkB, %s, linesize %d bytes.\n",
  64 -                                      scache_size >> 10,
  65 -                                      way_string[c->scache.ways], c->scache.linesz);
  66 -                       }
  67 -#else
  68 -                       if (!(c->scache.flags & MIPS_CACHE_NOT_PRESENT))
  69 -                               panic("Dunno how to handle MIPS32 / MIPS64 second level cache");
  70 -#endif
  71 -                       return;
  72 -               }
  73                 sc_present = 0;
  74         }
  75
  76         if (!sc_present)
  77                 return;
  78
  79 +       if ((c->isa_level == MIPS_CPU_ISA_M32R1 ||
  80 +            c->isa_level == MIPS_CPU_ISA_M64R1) &&
  81 +           !(c->scache.flags & MIPS_CACHE_NOT_PRESENT))
  82 +               panic("Dunno how to handle MIPS32 / MIPS64 second level cache");
  83 +
  84         /* compute a couple of other cache variables */
  85         c->scache.waysize = scache_size / c->scache.ways;
  86
  87 Index: linux-2.6.22-rc4/arch/mips/mm/Makefile
  88 ===================================================================
  89 --- linux-2.6.22-rc4.orig/arch/mips/mm/Makefile 2007-06-10 21:32:13.000000000 +0100
  90 +++ linux-2.6.22-rc4/arch/mips/mm/Makefile      2007-06-10 21:33:17.000000000 +0100
  91 @@ -30,4 +30,3 @@
  92  obj-$(CONFIG_IP22_CPU_SCACHE)  += sc-ip22.o
  93  obj-$(CONFIG_R5000_CPU_SCACHE)  += sc-r5k.o
  94  obj-$(CONFIG_RM7000_CPU_SCACHE)        += sc-rm7k.o
  95 -obj-$(CONFIG_MIPS_CPU_SCACHE)  += sc-mips.o