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| author | Aneesh V <aneesh@ti.com> | 2011-11-21 23:34:00 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2011-12-06 23:59:33 +0100 |
| commit | a8c686399f01c359713447c2adaecf94f3a4445b (patch) | |
| tree | 764f17c29f9181533174fbd1baa57d04d8c40583 /arch/arm/cpu/armv7/start.S | |
| parent | 87d3da7b01ee083447f9fcc62f35427d5fde2e2f (diff) | |
| download | u-boot-imx-a8c686399f01c359713447c2adaecf94f3a4445b.zip u-boot-imx-a8c686399f01c359713447c2adaecf94f3a4445b.tar.gz u-boot-imx-a8c686399f01c359713447c2adaecf94f3a4445b.tar.bz2 | |
armv7: setup vector
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>
Diffstat (limited to 'arch/arm/cpu/armv7/start.S')
| -rw-r--r-- | arch/arm/cpu/armv7/start.S | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/start.S b/arch/arm/cpu/armv7/start.S index db8e9d2..f17763f 100644 --- a/arch/arm/cpu/armv7/start.S +++ b/arch/arm/cpu/armv7/start.S @@ -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 |