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| author | Tetsuyuki Kobayashi <koba@kmckk.co.jp> | 2012-06-25 02:40:57 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2012-07-07 14:07:33 +0200 |
| commit | f8b9d1d30ece82abccefac3c860c06f8b7da8fbb (patch) | |
| tree | d036eff5ceec6389b5962125aad660eb91d843c3 | |
| parent | 0ec005fe00b9057fd16531f44146c9e363bb7861 (diff) | |
| download | u-boot-imx-f8b9d1d30ece82abccefac3c860c06f8b7da8fbb.zip u-boot-imx-f8b9d1d30ece82abccefac3c860c06f8b7da8fbb.tar.gz u-boot-imx-f8b9d1d30ece82abccefac3c860c06f8b7da8fbb.tar.bz2 | |
arm: bugfix: Move vector table before jumping relocated code
Interrupts and exceptions doesn't work in relocated code.
It badly use IRQ_STACK_START_IN in rom area as interrupt stack.
It is because the vecotr table is not moved to ram area.
This patch moves vector table before jumping relocated code.
Signed-off-by: Tetsuyuki Kobayashi <koba@kmckk.co.jp>
Tested-by: Tom Rini <trini@ti.com>
| -rw-r--r-- | arch/arm/cpu/armv7/start.S | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/start.S b/arch/arm/cpu/armv7/start.S index 261835b..22a3ced 100644 --- a/arch/arm/cpu/armv7/start.S +++ b/arch/arm/cpu/armv7/start.S @@ -277,6 +277,18 @@ jump_2_ram: mcr p15, 0, r0, c7, c10, 4 @ DSB mcr p15, 0, r0, c7, c5, 4 @ ISB #endif +/* + * Move vector table + */ +#if !defined(CONFIG_TEGRA2) +#if !(defined(CONFIG_OMAP44XX) && defined(CONFIG_SPL_BUILD)) + /* Set vector address in CP15 VBAR register */ + ldr r0, =_start + add r0, r0, r9 + mcr p15, 0, r0, c12, c0, 0 @Set VBAR +#endif +#endif /* !Tegra2 */ + ldr r0, _board_init_r_ofs adr r1, _start add lr, r0, r1 |