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Commit 53490121 authored Oct 04, 2014 by Max Filippov

xtensa: move vecbase SR initialization to _startup



Instead of initializing vecbase in initialize_mmu macro, which may be
expanded either in Image.elf reset vector hadler or in the kernel
head.S, both times only when CONFIG_MMU is enabled, do this
initialization once in _startup function.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>

parent a4f9846d

arch/xtensa/include/asm/initialize_mmu.h

+0 −3

Original line number	Diff line number	Diff line
		@@ -141,9 +141,6 @@
		jx a4

		1:
		movi a2, VECBASE_RESET_VADDR
		wsr a2, vecbase

		/* Step 5: remove temporary mapping. */
		idtlb a7
		iitlb a7

arch/xtensa/kernel/head.S

+5 −0

Original line number	Diff line number	Diff line
		@@ -112,6 +112,11 @@ ENTRY(_startup)

		movi a0, 0

		#if XCHAL_HAVE_VECBASE
		movi a2, VECBASE_RESET_VADDR
		wsr a2, vecbase
		#endif

		/* Clear debugging registers. */

		#if XCHAL_HAVE_DEBUG