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authorAurelien Jacquiot <a-jacquiot@ti.com>2011-10-04 11:00:02 -0400
committerMark Salter <msalter@redhat.com>2011-10-06 19:47:28 -0400
commitc1a144d77a6ca3a14ba3c0fec30bc4fd20b3d817 (patch)
treee5a761211a22a90ca2eb1c933d2b3539c6888831 /arch/c6x/platforms
parentc278400c52c14203894c5dc0d63cf385239d8329 (diff)
C6X: early boot code
Original port to early 2.6 kernel using TI COFF toolchain. Brought up to date by Mark Salter <msalter@redhat.com> This patch provides the early boot code for C6X architecture. There is a 16 entry vector table which is used to direct reset and interrupt events. The vector table entries contain a small amount of code (maximum of 8 opcodes) which simply branches to the actual event handling code. The head.S code simply clears BSS, setups up a few control registers, and calls machine_init followed by start_kernel. The machine_init code in setup.c does the early flat tree parsing (memory, commandline, etc). At setup_arch time, the code does the usual memory setup and minimally scans the devicetree for any needed information. Signed-off-by: Aurelien Jacquiot <a-jacquiot@ti.com> Signed-off-by: Mark Salter <msalter@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
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