ARM: mohawk: allow building with MMU disabled

It is in principle possible to build an MMP kernel for
the mohawk CPU with the MMU code disabled, except for one
simple build error:

proc-mohawk.S:345: Error: invalid operands (*UND* and *UND* sections) for `|'
proc-mohawk.S:345: Error: invalid operands (*ABS* and *UND* sections) for `|'
proc-mohawk.S:345: Error: invalid operands (*UND* and *UND* sections) for `|'
proc-mohawk.S:345: Error: invalid operands (*UND* and *UND* sections) for `|'
proc-mohawk.S:345: Error: undefined symbol L_PTE_USER used as an immediate value

This patch changes the proc-mohawk code to do the same as the
other CPUs and not try to actually do anything for the
cpu_mohawk_set_pte_ext function, which won't be used anyway.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

diff --git a/arch/arm/mm/proc-mohawk.S b/arch/arm/mm/proc-mohawk.S
index d65edf717bf7333d792fee6a0922bde155c0d5bf..6f07d2ef4ff262c64bb814824e48725353a6ca30 100644 (file)
--- a/arch/arm/mm/proc-mohawk.S
+++ b/arch/arm/mm/proc-mohawk.S
@@ -342,11 +342,13 @@ ENTRY(cpu_mohawk_switch_mm)
  */
        .align  5
 ENTRY(cpu_mohawk_set_pte_ext)
+#ifdef CONFIG_MMU
        armv3_set_pte_ext
        mov     r0, r0
        mcr     p15, 0, r0, c7, c10, 1          @ clean D entry
        mcr     p15, 0, r0, c7, c10, 4          @ drain WB
        ret     lr
+#endif
 
 .globl cpu_mohawk_suspend_size
 .equ   cpu_mohawk_suspend_size, 4 * 6