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H A Dserial8250_uart.c65d34b1fc22a1fb769639cb933f1339592c91d8f Thu Jul 06 07:29:24 UTC 2017 Joseph Chen <chenjh@rock-chips.com> drivers: serial8250_uart: use 32-bit accesses to the uart registers

Due to hardware design, some platforms can't access the peripheral IO
registers once a byte(8-bit) but once a word(32-bit). Obviously, using
32-bit accesses to the registers is more flexible for other plaforms
to use serial8250 uart.

Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Tested-by: Igor Opaniuk <igor.opaniuk@linaro.org> (serial8250_uart, TI-AM57xx)