diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 6c84756923220558db1bb3ed265c7b2b6a8dd182..8b323b7b0a611bcb82323bd153018f356ab9e372 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -833,7 +833,7 @@ config LOWMEM_CAM_NUM config DYNAMIC_MEMSTART bool "Enable page aligned dynamic load address for kernel (EXPERIMENTAL)" - depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || PPC_47x) + depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x) select NONSTATIC_KERNEL help 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 d7a1debda10b6471359d76965ab3451ea8a4cd32..0878bf5d8a68c98476cff2eebdc79894b4865834 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 */ /* * Configure and load pinned entry into TLB slot 63. */ +#ifdef CONFIG_DYNAMIC_MEMSTART + + /* Read the XLAT entry for our current mapping */ + tlbre r25,r23,PPC44x_TLB_XLAT + + lis r3,KERNELBASE@h + ori r3,r3,KERNELBASE@l + + /* Use our current RPN entry */ + mr r4,r25 +#else lis r3,PAGE_OFFSET@h ori r3,r3,PAGE_OFFSET@l /* Kernel is at the base of RAM */ li r4, 0 /* Load the kernel physical address */ +#endif /* Load the kernel PID = 0 */ li r0,0