Commit 906d6fe3 authored by Fabio Estevam's avatar Fabio Estevam Committed by Tom Rini
Browse files

mx25: Fix boot hang by avoiding vector relocation

Since commit 3ff46cc4

 ("arm: relocate the exception vectors") mx25pdk
hangs like this:

CPU:   Freescale i.MX25 rev1.2 at 399 MHz
Reset cause: WDOG
Board: MX25PDK
I2C:   ready
DRAM:  64 MiB
(hangs)

Add a specific relocate_vectors macro that skips the vector relocation, as the
i.MX25 SoC does not provide RAM at the high vectors address (0xFFFF0000), and
(0x00000000) maps to ROM.

This allows mx25 to boot again.
Acked-By: default avatarBill Pringlemeir <bpringlemeir@nbsps.com>
Signed-off-by: default avatarFabio Estevam <fabio.estevam@freescale.com>
parent fa840b09
......@@ -5,3 +5,7 @@
# SPDX-License-Identifier: GPL-2.0+
obj-y = generic.o timer.o reset.o
ifndef CONFIG_SPL_BUILD
obj-y += relocate.o
endif
/*
* relocate - i.MX25-specific vector relocation
*
* Copyright (c) 2013 Albert ARIBAUD <albert.u.boot@aribaud.net>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <linux/linkage.h>
/*
* The i.MX25 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)
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