From: Andrew Ruder Date: Wed, 12 Aug 2015 17:55:47 +0000 (-0500) Subject: pxa: Fix boot hang by avoiding vector relocation X-Git-Tag: v2015.10-rc3~94^2~10 X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=07a8e6d6ee04de7c95de9824e3d1821744f92970;p=oweals%2Fu-boot.git pxa: Fix boot hang by avoiding vector relocation Since commit 3ff46cc42b9d73d0 ("arm: relocate the exception vectors") pxa does not boot anymore. Add a specific relocate_vectors macro that skips the vector relocation, as the pxa SoC does not provide RAM at the high vectors address (0xFFFF0000), and (0x00000000) maps to ROM. This allows pxa to boot again. Cc: Marek Vasut Signed-off-by: Andrew Ruder --- diff --git a/arch/arm/cpu/pxa/Makefile b/arch/arm/cpu/pxa/Makefile index 8cd475e3a4..3ee08cd188 100644 --- a/arch/arm/cpu/pxa/Makefile +++ b/arch/arm/cpu/pxa/Makefile @@ -13,3 +13,4 @@ obj-$(CONFIG_CPU_PXA27X) += pxa2xx.o obj-y += cpuinfo.o obj-y += timer.o obj-y += usb.o +obj-y += relocate.o diff --git a/arch/arm/cpu/pxa/relocate.S b/arch/arm/cpu/pxa/relocate.S new file mode 100644 index 0000000000..fafd4daeb6 --- /dev/null +++ b/arch/arm/cpu/pxa/relocate.S @@ -0,0 +1,23 @@ +/* + * relocate - PXA270 vector relocation + * + * Copyright (c) 2013 Albert ARIBAUD + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include + +/* + * The PXA SoC is very specific with respect to exceptions: it + * does not provide RAM at the high vectors address (0xFFFF0000), + * thus only the low address (0x00000000) is useable; but that is + * in ROM, so let's avoid relocating the vectors. + */ + .section .text.relocate_vectors,"ax",%progbits + +ENTRY(relocate_vectors) + + bx lr + +ENDPROC(relocate_vectors)