Commit 626afa35 authored Mar 10, 2011 by Michal Simek

microblaze: Fix microblaze init vectors



Microblaze vector table stores several vectors (reset, user exception,
interrupt, debug exception and hardware exception).
All these functions can be below address 0x10000. If they are, wrong
vector table is genarated because jump is not setup from two instructions
(imm upper 16bit and brai lower 16bit).
Adding specific offset prevent problem if address is below 0x10000.
For this case only brai instruction is used.

Signed-off-by: Michal Simek <monstr@monstr.eu>

parent caa66ce9

arch/microblaze/kernel/entry.S

+4 −1

Original line number	Diff line number	Diff line
		@@ -998,10 +998,13 @@ ENTRY(_reset)
		/* in current MMU branch you don't care what is here - it is
		* used from bootloader site - but this is correct for FS-BOOT */
		brai 0x70
		nop
		.org 0x8
		brai TOPHYS(_user_exception); /* syscall handler */
		.org 0x10
		brai TOPHYS(_interrupt); /* Interrupt handler */
		.org 0x18
		brai TOPHYS(_debug_exception); /* debug trap handler */
		.org 0x20
		brai TOPHYS(_hw_exception_handler); /* HW exception handler */

		.section .rodata,"a"