diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S index d994561816a1..cf495a3084b3 100644 --- a/arch/arm/kernel/head.S +++ b/arch/arm/kernel/head.S @@ -22,6 +22,10 @@ #include #include +#if (PHYS_OFFSET & 0x001fffff) +#error "PHYS_OFFSET must be at an even 2MiB boundary!" +#endif + #define KERNEL_RAM_VADDR (PAGE_OFFSET + TEXT_OFFSET) #define KERNEL_RAM_PADDR (PHYS_OFFSET + TEXT_OFFSET) @@ -251,7 +255,8 @@ __create_page_tables: * Then map first 1MB of ram in case it contains our boot params. */ add r0, r4, #PAGE_OFFSET >> 18 - orr r6, r7, #PHYS_OFFSET + orr r6, r7, #(PHYS_OFFSET & 0xff000000) + orr r6, r6, #(PHYS_OFFSET & 0x00e00000) str r6, [r0] #ifdef CONFIG_XIP_KERNEL