diff options
| author | Andrew Ruder | 2015-08-12 12:55:47 -0500 |
|---|---|---|
| committer | Marek Vasut | 2015-08-24 20:30:37 +0200 |
| commit | 07a8e6d6ee04de7c95de9824e3d1821744f92970 (patch) | |
| tree | 9b8c42f451c47a37db4d0614ecf3c8e39a34c35e /arch/arm/cpu/pxa | |
| parent | c851a2458fbc12495f4f786d4eabb612850a5143 (diff) | |
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 <marex@denx.de>
Signed-off-by: Andrew Ruder <andrew.ruder@elecsyscorp.com>
Diffstat (limited to 'arch/arm/cpu/pxa')
| -rw-r--r-- | arch/arm/cpu/pxa/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/cpu/pxa/relocate.S | 23 |
2 files changed, 24 insertions, 0 deletions
diff --git a/arch/arm/cpu/pxa/Makefile b/arch/arm/cpu/pxa/Makefile index 8cd475e3a49..3ee08cd1887 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 00000000000..fafd4daeb6f --- /dev/null +++ b/arch/arm/cpu/pxa/relocate.S @@ -0,0 +1,23 @@ +/* + * relocate - PXA270 vector relocation + * + * Copyright (c) 2013 Albert ARIBAUD <albert.u.boot@aribaud.net> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <linux/linkage.h> + +/* + * 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) |