diff options
-rw-r--r-- | arch/powerpc/Kconfig | 2 | ||||
-rw-r--r-- | arch/powerpc/kernel/head_44x.S | 12 |
2 files changed, 13 insertions, 1 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 6c8475692322..8b323b7b0a61 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig | |||
@@ -833,7 +833,7 @@ config LOWMEM_CAM_NUM | |||
833 | 833 | ||
834 | config DYNAMIC_MEMSTART | 834 | config DYNAMIC_MEMSTART |
835 | bool "Enable page aligned dynamic load address for kernel (EXPERIMENTAL)" | 835 | bool "Enable page aligned dynamic load address for kernel (EXPERIMENTAL)" |
836 | depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || PPC_47x) | 836 | depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x) |
837 | select NONSTATIC_KERNEL | 837 | select NONSTATIC_KERNEL |
838 | help | 838 | help |
839 | This option enables the kernel to be loaded at any page aligned | 839 | This option enables the kernel to be loaded at any page aligned |
diff --git a/arch/powerpc/kernel/head_44x.S b/arch/powerpc/kernel/head_44x.S index d7a1debda10b..0878bf5d8a68 100644 --- a/arch/powerpc/kernel/head_44x.S +++ b/arch/powerpc/kernel/head_44x.S | |||
@@ -804,12 +804,24 @@ skpinv: addi r4,r4,1 /* Increment */ | |||
804 | /* | 804 | /* |
805 | * Configure and load pinned entry into TLB slot 63. | 805 | * Configure and load pinned entry into TLB slot 63. |
806 | */ | 806 | */ |
807 | #ifdef CONFIG_DYNAMIC_MEMSTART | ||
808 | |||
809 | /* Read the XLAT entry for our current mapping */ | ||
810 | tlbre r25,r23,PPC44x_TLB_XLAT | ||
811 | |||
812 | lis r3,KERNELBASE@h | ||
813 | ori r3,r3,KERNELBASE@l | ||
814 | |||
815 | /* Use our current RPN entry */ | ||
816 | mr r4,r25 | ||
817 | #else | ||
807 | 818 | ||
808 | lis r3,PAGE_OFFSET@h | 819 | lis r3,PAGE_OFFSET@h |
809 | ori r3,r3,PAGE_OFFSET@l | 820 | ori r3,r3,PAGE_OFFSET@l |
810 | 821 | ||
811 | /* Kernel is at the base of RAM */ | 822 | /* Kernel is at the base of RAM */ |
812 | li r4, 0 /* Load the kernel physical address */ | 823 | li r4, 0 /* Load the kernel physical address */ |
824 | #endif | ||
813 | 825 | ||
814 | /* Load the kernel PID = 0 */ | 826 | /* Load the kernel PID = 0 */ |
815 | li r0,0 | 827 | li r0,0 |