[Patch, avr] Add atmel ata5782 and ata5831 devices

["S, Pitchumani" <Pitchumani dot S at atmel dot com>]

This patch adds supports for Atmel's ata5782 and ata5831 devices.

These devices ISA matches with AVR5 architecture except that text section 
start for these two devices is 0x8000. By default 0x0 is used as the text 
start address. This patch adds a device attribute for text start and that 
is passed to Linker via -Ttext option.

If OK, could someone commit please?

Regards,
Pitchumani

2014-07-11  Pitchumani Sivanupandi  <pitchumani.s@atmel.com>

    * config/avr/avr-arch.h (avr_mcu_t): Add text section start attribute.
    * config/avr/avr-devices.c (AVR_MCU): Same.
    (avr_mcu_types): add text start value to end of device list.
    * config/avr/avr-mcus.def: Add text section start for all devices.
    (ata5782): Add new avr5 device.
    (ata5831): Same.
    * config/avr/avr-tables.opt: Regenerate.
    * config/avr/avr.h: Add declaration for text section start handler.
    (EXTRA_SPEC_FUNCTIONS): Add text section start handler to SPEC functions.
    (LINK_SPEC): Include text section start handler to linker spec.
    * config/avr/driver-avr.c (avr_device_to_text_start): New function to
    pass -Ttext option to linker if the text section start for the device is
    not zero.
    * config/avr/t-multilib: Regenerate.
    * doc/avr-mmcu.texi: Regenerate.

Attachment: avr-gcc-ata5782-5831.patch
Description: avr-gcc-ata5782-5831.patch