[U-Boot] [PATCH 1/9 V4] add new CONFIG_AT91_LEGACY

[Tom <Tom.Rix@windriver.com>]

Jens Scharsig wrote:
> * add's the new temporary CONFIG_AT91_LEGACY to all board configs
>  This will need for backward compatiblity, while change the SoC access
>  to c structures. If CONFIG_AT91_LEGACY is defined, the deprecated
>  SoC is used.
> 
> 
> Signed-off-by: Jens Scharsig <js_at_ng@scharsoft.de>

This looks good.
The only problem is the new at91 target otc570 is breaking.

Please take a look at errors in otc570

otc570 :

at91sam9263_devices.c: In function 'at91_serial0_hw_init':
at91sam9263_devices.c:40: warning: implicit declaration of function 
'at91_set_a_periph'
at91sam9263_devices.c: In function 'at91_spi0_hw_init':
at91sam9263_devices.c:96: warning: implicit declaration of function 
'at91_set_b_periph'
at91sam9263_devices.c:116: warning: implicit declaration of function 
'at91_set_pio_output'
clock.c: In function 'at91_clock_init':
clock.c:160: warning: implicit declaration of function 'at91_sys_read'
clock.c:160: error: 'AT91_CKGR_MCFR' undeclared (first use in this function)
clock.c:160: error: (Each undeclared identifier is reported only once
clock.c:160: error: for each function it appears in.)

Tom