From: Scott Wood Date: Thu, 20 Sep 2012 23:34:49 +0000 (-0500) Subject: powerpc/mpc85xx: fix TLB alignment X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=7f0a22ff25f3b63d259e27a3702a5d10254e7165;p=u-boot.git powerpc/mpc85xx: fix TLB alignment In the RAMBOOT/SPL case we were creating a TLB entry starting at CONFIG_SYS_MONITOR_BASE, and just hoping that the base was properly aligned for the TLB entry size. This turned out to not be the case with NAND SPL because the main U-Boot starts at an offset into the image in order to skip the SPL itself. Fix the TLB entry to always start at a proper alignment. We still assume that CONFIG_SYS_MONITOR_BASE doesn't start immediately before a large-page boundary thus requiring multiple TLB entries. Signed-off-by: Scott Wood Cc: Andy Fleming --- diff --git a/arch/powerpc/cpu/mpc85xx/start.S b/arch/powerpc/cpu/mpc85xx/start.S index 7912a4b249..577d6874ba 100644 --- a/arch/powerpc/cpu/mpc85xx/start.S +++ b/arch/powerpc/cpu/mpc85xx/start.S @@ -1046,8 +1046,8 @@ create_init_ram_area: */ create_tlb1_entry 15, \ 1, BOOKE_PAGESZ_1M, \ - CONFIG_SYS_MONITOR_BASE, MAS2_I|MAS2_G, \ - CONFIG_SYS_PBI_FLASH_WINDOW, MAS3_SX|MAS3_SW|MAS3_SR, \ + CONFIG_SYS_MONITOR_BASE & 0xfff00000, MAS2_I|MAS2_G, \ + CONFIG_SYS_PBI_FLASH_WINDOW & 0xfff00000, MAS3_SX|MAS3_SW|MAS3_SR, \ 0, r6 #else /* @@ -1056,8 +1056,8 @@ create_init_ram_area: */ create_tlb1_entry 15, \ 1, BOOKE_PAGESZ_1M, \ - CONFIG_SYS_MONITOR_BASE, MAS2_I|MAS2_G, \ - CONFIG_SYS_MONITOR_BASE, MAS3_SX|MAS3_SW|MAS3_SR, \ + CONFIG_SYS_MONITOR_BASE & 0xfff00000, MAS2_I|MAS2_G, \ + CONFIG_SYS_MONITOR_BASE & 0xfff00000, MAS3_SX|MAS3_SW|MAS3_SR, \ 0, r6 #endif