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7a6a7d10e6
There is a limitation (or bug?) of nios2 toolchain. The nios2 gcc didn't generate correct code when the reset vector is passed as a constant. It just generated a direct "call", which was wrong when the reset vector was not located in the same 256MB span as u-boot. The "Nios II Processor Reference Handbook" said, "call can transfer execution anywhere within the 256 MByte range determined by PC31..28. The Nios II GNU linker does not automatically handle cases in which the address is out of this range." So we have to use registered "callr" instruction to do the job. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Signed-off-by: Scott McNutt <smcnutt@psyent.com> |
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| .. | ||
| config.mk | ||
| cpu.c | ||
| epcs.c | ||
| exceptions.S | ||
| interrupts.c | ||
| Makefile | ||
| start.S | ||
| sysid.c | ||
| traps.c | ||
| u-boot.lds | ||