This converts 3 usages of this option to the non-SPL form, since there is
no SPL_OF_BOARD defined in Kconfig

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Matthias Brugger <mbrugger@suse.com>

This converts 1 usage of this option to the non-SPL form, since there is
no SPL_DEBUG_UART_ZYNQ defined in Kconfig

Signed-off-by: Simon Glass <sjg@chromium.org>

This option does not exist, so the code attached to it is not used. Drop
it.

Signed-off-by: Simon Glass <sjg@chromium.org>

Instead of waiting for empty FIFO condition before writing a
character, wait for non-full FIFO condition.

This helps in saving several tens of milliseconds during boot
(depending verbosity).

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Tested-by: Lothar Waßmann <LW@KARO-electronics.de>
Acked-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Fabio Estevam <festevam@denx.de>
Tested-by: Fabio Estevam <festevam@denx.de>

The u-boot console may show some corrupted characters when
printing in board_init() due to reset or baudrate change
of the UART (probe) before the TX FIFO has been completely
drained.

To fix this issue, and in case UART is still running, we now
try to flush the FIFO before proceeding to UART reinitialization.
For this we're waiting for Transmitter Complete bit, indicating
that the FIFO and the shift register are empty.

flushing has a 4ms timeout guard, which is normally more than
enough to consume the FIFO @ low baudrate (9600bps).

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Tested-by: Lothar Waßmann <LW@KARO-electronics.de>
Acked-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Fabio Estevam <festevam@denx.de>

There are no SPL/TPL variants of CONFIG_CLK_EXYNOS and
CONFIG_ARCH_APPLE, so switch from CONFIG_IS_ENABLED to
IS_ENABLED.

Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
Reviewed-by: Simon Glass <sjg@chromium.org>

At this point, the remaining places where we have a symbol that is
defined as CONFIG_... are in fairly odd locations. While as much dead
code has been removed as possible, some of these locations are simply
less obvious at first. In other cases, this code is used, but was
defined in such a way as to have been missed by earlier checks.  Perform
a rename of all such remaining symbols to be CFG_... rather than
CONFIG_...

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

For this legacy driver, the only user sets these values in Kconfig, so
we can remove them from the header.

Signed-off-by: Tom Rini <trini@konsulko.com>

Switch the S5P4418-SOC and therefore the s5p4418_nanopi2 board to
DM_SERIAL.

Signed-off-by: Stefan Bosch <stefan_b@posteo.net>

Add dm_serial driver source code for S5P4418 SOC. Extend the "arm,pl011"
driver by init of UART-clock and UART-reset.

Signed-off-by: Stefan Bosch <stefan_b@posteo.net>