dm: serial: set flag GD_FLG_SERIAL_READY if CONFIG_ROCKCHIP_VIDCONSOLE is enabled

For RK platforms, the CONFIG_DEBUG_UART_ALWAYS is enabled by
default, so the GD_FLG_SERIAL_READY will not be set in

dm: serial: set flag GD_FLG_SERIAL_READY if CONFIG_ROCKCHIP_VIDCONSOLE is enabled

For RK platforms, the CONFIG_DEBUG_UART_ALWAYS is enabled by
default, so the GD_FLG_SERIAL_READY will not be set in serial_init()
of drivers/serial/serial_uclass.c, which makes stdout support only
"serial".

If GD_FLG_SERIAL_READY is not set, the console will only use
the function printch() to show the logs. The related codes in
common/console.c are:

void putc(const char c)
......
/* if we don't have a console yet, use the debug UART */
if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) {
printch(c);
return;
}
......
}

In order to show logs on srcreen via the video console, we set
the flag GD_FLG_SERIAL_READY in serial_init() if the config
CONFIG_ROCKCHIP_VIDCONSOLE is enabled.

Change-Id: I4a10ac7a6b1f0798bcf4ebfef11a1214719fe6fc
Signed-off-by: Damon Ding <damon.ding@rock-chips.com>

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UPSTREAM: dm: treewide: Do not use the return value of simple uclass iterator

uclass_first_device/uclass_next_device return value will be removed,
don't use it.

With the current implementation dev

UPSTREAM: dm: treewide: Do not use the return value of simple uclass iterator

uclass_first_device/uclass_next_device return value will be removed,
don't use it.

With the current implementation dev is equivalent to !ret. It is
redundant to check both, ret check can be replaced with dev check, and
ret check inside the iteration is dead code.

Change-Id: Ie500bbed46f8d08721b14b1db7a7be94ea601799
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
(cherry picked from commit 4954937d922840c212b7eba297cc2d4779f087ad)
Signed-off-by: Cody Xie <cody.xie@rock-chips.com>

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serial: ns16550: Add serial rx/tx fifo clear support

Correct the implementaion of clear callback, it should
be reset action but not flush.

flushc() is only used for debug uart.

Signed-off-by: Jose

serial: ns16550: Add serial rx/tx fifo clear support

Correct the implementaion of clear callback, it should
be reset action but not flush.

flushc() is only used for debug uart.

Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Change-Id: I8d38c9753c77bee37e3c4ae6338ff96c6ad0bf30

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dm: serial: Remove baudrate change callback if CONFIG_DEBUG_UART_ALWAYS=y

Without this patch, it triggers the callback to reinit uart debug baudrate
when preloader baudrate is different from CONFIG_

dm: serial: Remove baudrate change callback if CONFIG_DEBUG_UART_ALWAYS=y

Without this patch, it triggers the callback to reinit uart debug baudrate
when preloader baudrate is different from CONFIG_BAUDRATE.

Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Change-Id: If0f5c5c9bf2ee673c9c4ccb70dafca730c654d93

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Kconfig: add depends on for SPL options

Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Change-Id: I066114702ef6442434969096cdc4e4156887c164

drivers: pci: separate SPL & U-Boot proper build

It fixes SPL compile issue after PCI enabled.

Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Change-Id: Ic3d4a464defd2074be083effd25f513ae19d2e01

serial: Kconfig: default y for DEBUG_UART_ALWAYS

Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Change-Id: Ie40ee20335c4aaafe8e31c32438b78de41bc01fd

dm: serial: support always use uart debug mode

In this mode, uart debug is initialized depends on
configuration from pre-loader or CONFIG_UART_DEBUG_.

The serial is not care about dts "stdout-path"

dm: serial: support always use uart debug mode

In this mode, uart debug is initialized depends on
configuration from pre-loader or CONFIG_UART_DEBUG_.

The serial is not care about dts "stdout-path" and
not register into console framework any more. It's
nice to use pre-loader serial and make serial easy
to configure.

Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Change-Id: If4c68229d76b6f1710a35e3ef9a2a91cb306fa9c

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dm: serial/16550: rollback to upstream version

rollback to: 02234e4 UPSTREAM: usbtty: fix typos

Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Change-Id: I84296fad2b06823afc77477ef4ef11a2f80196

dm: serial/16550: rollback to upstream version

rollback to: 02234e4 UPSTREAM: usbtty: fix typos

Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Change-Id: I84296fad2b06823afc77477ef4ef11a2f801960a

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dm: serial: introduce DEBUG_UART_ALWAYS_MODE configure

Rename CONSOLE_SERIAL_SKIP_INIT to DEBUG_UART_ALWAYS_MODE for
easy understand.

Select this to always use debug UART, skip complicated
console

dm: serial: introduce DEBUG_UART_ALWAYS_MODE configure

Rename CONSOLE_SERIAL_SKIP_INIT to DEBUG_UART_ALWAYS_MODE for
easy understand.

Select this to always use debug UART, skip complicated
console UART register.

Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Change-Id: I3c265840bde015fe5fd7c73d959ba0538297b7c2

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dm: serial: allow skip console serial init

Always use debug uart.

Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Change-Id: Id751856abd7be219e8acb4c5986469a804051934

dm: serial: hide and present pinctrl prop in live device tree

1. We bind all serial nodes including UART debug node from kernel dtb.
2. On some rockchip platforms, UART debug and SDMMC pin are multi

dm: serial: hide and present pinctrl prop in live device tree

1. We bind all serial nodes including UART debug node from kernel dtb.
2. On some rockchip platforms, UART debug and SDMMC pin are multiplex.
Without this, iomux is switched from SDMMC => UART debug at this time.
3. We may switch to UART debug iomux after SDMMC boot failed to print log.

fixes: (503458d core: device: allow serial node bind from kernel dtb)

Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Change-Id: I286ad49f6c5a7e083d205560a4a16e16ded6b83f

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