print kernel message when cache workarounds are enabled

git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@1351 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/target/linux/linux-2.4/patches/brcm/003-bcm47xx_cache_fixes.patch b/target/linux/linux-2.4/patches/brcm/003-bcm47xx_cache_fixes.patch
index a407f4b..da40a47 100644 (file)
--- a/target/linux/linux-2.4/patches/brcm/003-bcm47xx_cache_fixes.patch
+++ b/target/linux/linux-2.4/patches/brcm/003-bcm47xx_cache_fixes.patch
@@ -1,6 +1,6 @@
 diff -urN linux.old/arch/mips/kernel/entry.S linux.dev/arch/mips/kernel/entry.S
 diff -urN linux.old/arch/mips/kernel/entry.S linux.dev/arch/mips/kernel/entry.S

---- linux.old/arch/mips/kernel/entry.S 2005-07-04 23:39:26.000000000 +0200
-+++ linux.dev/arch/mips/kernel/entry.S 2005-07-05 14:33:14.000000000 +0200
+--- linux.old/arch/mips/kernel/entry.S 2005-07-05 16:46:49.000000000 +0200
++++ linux.dev/arch/mips/kernel/entry.S 2005-07-05 16:42:36.000000000 +0200

 @@ -100,6 +100,10 @@
                 * and R4400 SC and MC versions.
                 */
 @@ -100,6 +100,10 @@
                 * and R4400 SC and MC versions.
                 */


@@ -13,8 +13,8 @@ diff -urN linux.old/arch/mips/kernel/entry.S linux.dev/arch/mips/kernel/entry.S
                mfc0    k0, CP0_INDEX
  #endif
 diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c
                mfc0    k0, CP0_INDEX
  #endif
 diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c

---- linux.old/arch/mips/mm/c-r4k.c     2005-07-04 23:39:26.000000000 +0200
-+++ linux.dev/arch/mips/mm/c-r4k.c     2005-07-05 15:11:49.000000000 +0200
+--- linux.old/arch/mips/mm/c-r4k.c     2005-07-05 16:46:49.000000000 +0200
++++ linux.dev/arch/mips/mm/c-r4k.c     2005-07-05 16:48:47.000000000 +0200

 @@ -14,6 +14,12 @@
  #include <linux/mm.h>
  #include <linux/bitops.h>
 @@ -14,6 +14,12 @@
  #include <linux/mm.h>
  #include <linux/bitops.h>


@@ -262,19 +262,20 @@ diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c
  void __init ld_mmu_r4xx0(void)
  {
        extern void build_clear_page(void);
  void __init ld_mmu_r4xx0(void)
  {
        extern void build_clear_page(void);

-@@ -1073,6 +1147,11 @@
+@@ -1073,6 +1147,12 @@

        memcpy((void *)(KSEG0 + 0x100), &except_vec2_generic, 0x80);
        memcpy((void *)(KSEG1 + 0x100), &except_vec2_generic, 0x80);
  
        memcpy((void *)(KSEG0 + 0x100), &except_vec2_generic, 0x80);
        memcpy((void *)(KSEG1 + 0x100), &except_vec2_generic, 0x80);
  

-+      if (current_cpu_data.cputype == CPU_BCM4710 && (current_cpu_data.processor_id & PRID_REV_MASK) == 0)
++      if (current_cpu_data.cputype == CPU_BCM4710 && (current_cpu_data.processor_id & PRID_REV_MASK) == 0) {
++              printk("Enabling BCM4710A0 cache workarounds.\n");

 +              bcm4710 = 1;
 +              bcm4710 = 1;

-+      else
++      } else

 +              bcm4710 = 0;
 +      
        probe_pcache();
        setup_scache();
  
 +              bcm4710 = 0;
 +      
        probe_pcache();
        setup_scache();
  

-@@ -1117,47 +1196,9 @@
+@@ -1117,47 +1197,9 @@

  
        build_clear_page();
        build_copy_page();
  
        build_clear_page();
        build_copy_page();


@@ -325,8 +326,8 @@ diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c
  }
  
 diff -urN linux.old/arch/mips/mm/tlb-r4k.c linux.dev/arch/mips/mm/tlb-r4k.c
  }
  
 diff -urN linux.old/arch/mips/mm/tlb-r4k.c linux.dev/arch/mips/mm/tlb-r4k.c

---- linux.old/arch/mips/mm/tlb-r4k.c   2005-07-04 23:39:26.000000000 +0200
-+++ linux.dev/arch/mips/mm/tlb-r4k.c   2005-07-05 14:33:14.000000000 +0200
+--- linux.old/arch/mips/mm/tlb-r4k.c   2005-07-05 16:46:49.000000000 +0200
++++ linux.dev/arch/mips/mm/tlb-r4k.c   2005-07-05 16:42:36.000000000 +0200

 @@ -38,6 +38,7 @@
        old_ctx = read_c0_entryhi();
        write_c0_entrylo0(0);
 @@ -38,6 +38,7 @@
        old_ctx = read_c0_entryhi();
        write_c0_entrylo0(0);


@@ -384,8 +385,8 @@ diff -urN linux.old/arch/mips/mm/tlb-r4k.c linux.dev/arch/mips/mm/tlb-r4k.c
        write_c0_entryhi(entryhi);
        write_c0_entrylo0(entrylo0);
 diff -urN linux.old/arch/mips/mm/tlbex-mips32.S linux.dev/arch/mips/mm/tlbex-mips32.S
        write_c0_entryhi(entryhi);
        write_c0_entrylo0(entrylo0);
 diff -urN linux.old/arch/mips/mm/tlbex-mips32.S linux.dev/arch/mips/mm/tlbex-mips32.S

---- linux.old/arch/mips/mm/tlbex-mips32.S      2005-07-04 23:39:26.000000000 +0200
-+++ linux.dev/arch/mips/mm/tlbex-mips32.S      2005-07-05 14:33:14.000000000 +0200
+--- linux.old/arch/mips/mm/tlbex-mips32.S      2005-07-05 16:46:49.000000000 +0200
++++ linux.dev/arch/mips/mm/tlbex-mips32.S      2005-07-05 16:42:36.000000000 +0200

 @@ -90,6 +90,9 @@
        .set    noat
        LEAF(except_vec0_r4000)
 @@ -90,6 +90,9 @@
        .set    noat
        LEAF(except_vec0_r4000)


@@ -397,8 +398,8 @@ diff -urN linux.old/arch/mips/mm/tlbex-mips32.S linux.dev/arch/mips/mm/tlbex-mip
        mfc0    k1, CP0_CONTEXT
        la      k0, pgd_current
 diff -urN linux.old/include/asm-mips/r4kcache.h linux.dev/include/asm-mips/r4kcache.h
        mfc0    k1, CP0_CONTEXT
        la      k0, pgd_current
 diff -urN linux.old/include/asm-mips/r4kcache.h linux.dev/include/asm-mips/r4kcache.h

---- linux.old/include/asm-mips/r4kcache.h      2005-07-04 23:39:26.000000000 +0200
-+++ linux.dev/include/asm-mips/r4kcache.h      2005-07-05 15:13:56.000000000 +0200
+--- linux.old/include/asm-mips/r4kcache.h      2005-07-05 16:46:49.000000000 +0200
++++ linux.dev/include/asm-mips/r4kcache.h      2005-07-05 16:42:36.000000000 +0200

 @@ -15,6 +15,18 @@
  #include <asm/asm.h>
  #include <asm/cacheops.h>
 @@ -15,6 +15,18 @@
  #include <asm/asm.h>
  #include <asm/cacheops.h>


@@ -579,8 +580,8 @@ diff -urN linux.old/include/asm-mips/r4kcache.h linux.dev/include/asm-mips/r4kca
                cache64_unroll32(start,Hit_Invalidate_I);
                start += 0x800;
 diff -urN linux.old/include/asm-mips/stackframe.h linux.dev/include/asm-mips/stackframe.h
                cache64_unroll32(start,Hit_Invalidate_I);
                start += 0x800;
 diff -urN linux.old/include/asm-mips/stackframe.h linux.dev/include/asm-mips/stackframe.h

---- linux.old/include/asm-mips/stackframe.h    2005-07-04 23:39:26.000000000 +0200
-+++ linux.dev/include/asm-mips/stackframe.h    2005-07-05 14:33:14.000000000 +0200
+--- linux.old/include/asm-mips/stackframe.h    2005-07-05 16:46:49.000000000 +0200
++++ linux.dev/include/asm-mips/stackframe.h    2005-07-05 16:42:36.000000000 +0200

 @@ -172,6 +172,46 @@
                 rfe;                                    \
                .set    pop
 @@ -172,6 +172,46 @@
                 rfe;                                    \
                .set    pop