From f8b9d1d30ece82abccefac3c860c06f8b7da8fbb Mon Sep 17 00:00:00 2001 From: Tetsuyuki Kobayashi Date: Mon, 25 Jun 2012 02:40:57 +0000 Subject: [PATCH] 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 Tested-by: Tom Rini --- arch/arm/cpu/armv7/start.S | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/arm/cpu/armv7/start.S b/arch/arm/cpu/armv7/start.S index 261835b6c6..22a3cedcb0 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 -- 2.30.2