diff options
| author | York Sun <yorksun@freescale.com> | 2012-10-28 08:12:54 +0000 |
|---|---|---|
| committer | Andy Fleming <afleming@freescale.com> | 2012-11-27 18:28:06 -0600 |
| commit | 2a5fcb835f6e976ed0eb34c413d40f2d4a5e8d1f (patch) | |
| tree | bfb0622c88026a5b3e7f7153bd1a90873001394b /arch/powerpc/include | |
| parent | ca1b0b89568cecaf2ecdbcbef714722d70021094 (diff) | |
powerpc/mpc85xx: Temporary fix for spin table backward compatibility
Once u-boot sets the spin table to cache-enabled memory, old kernel which
uses cache-inhibit mapping without coherence will not work properly. We
use this temporary fix until kernel has updated its spin table code.
For now this fix is activated by default. To disable this fix for new
kernel, set environmental variable "spin_table_compat=no". After kernel
has updated spin table code, this default shall be changed.
Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/config_mpc85xx.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/config_mpc85xx.h b/arch/powerpc/include/asm/config_mpc85xx.h index 61dd061427..d1c1e0681a 100644 --- a/arch/powerpc/include/asm/config_mpc85xx.h +++ b/arch/powerpc/include/asm/config_mpc85xx.h @@ -27,6 +27,12 @@ #error "Do not define CONFIG_SYS_CCSRBAR_DEFAULT in the board header file." #endif +/* + * This macro should be removed when we no longer care about backwards + * compatibility with older operating systems. + */ +#define CONFIG_PPC_SPINTABLE_COMPATIBLE + #define FSL_DDR_VER_4_7 47 /* Number of TLB CAM entries we have on FSL Book-E chips */ |