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armv7: setup vector

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The vector is not correctly setup in armv7 except for OMAP3.
Correcting this.

Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Signed-off-by: Aneesh V <aneesh@ti.com>
This commit is contained in:
Aneesh V 2011-11-21 23:34:00 +00:00 • committed by Albert ARIBAUD
parent 87d3da7b01
commit a8c686399f
1 changed files with 17 additions and 0 deletions
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17
arch/arm/cpu/armv7/start.S
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@ -32,6 +32,7 @@
#include <asm-offsets.h>
#include <config.h>
#include <version.h>
#include <asm/system.h>
.globl _start
_start: b reset
@ -143,6 +144,22 @@ reset:
orr r0, r0, #0xd3
msr cpsr,r0
/*
* Setup vector:
* (OMAP4 spl TEXT_BASE is not 32 byte aligned.
* Continue to use ROM code vector only in OMAP4 spl)
*/
#if !(defined(CONFIG_OMAP44XX) && defined(CONFIG_SPL_BUILD))
/* Set V=0 in CP15 SCTRL register - for VBAR to point to vector */
mrc p15, 0, r0, c1, c0, 0 @ Read CP15 SCTRL Register
bic r0, #CR_V @ V = 0
mcr p15, 0, r0, c1, c0, 0 @ Write CP15 SCTRL Register
/* Set vector address in CP15 VBAR register */
ldr r0, =_start
mcr p15, 0, r0, c12, c0, 0 @Set VBAR
#endif
#if defined(CONFIG_OMAP34XX)
/* Copy vectors to mask ROM indirect addr */
adr r0, _start @ r0 <- current position of code