SPDX: Convert all of our single license tags to Linux Kernel style

When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So

SPDX: Convert all of our single license tags to Linux Kernel style

When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry. Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents. There's also a few places where I found we did not have a tag
and have introduced one.

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

show more ...

serial: omap: Support debug UART

Add debug UART functions to permit omap specific ns16550 to
provide an early debug UART. This is mostly in common with
DEBUG_UART_NS16550 except for Mode definition

serial: omap: Support debug UART

Add debug UART functions to permit omap specific ns16550 to
provide an early debug UART. This is mostly in common with
DEBUG_UART_NS16550 except for Mode definition register which
is required for selecting UART mode(16x auto-baud or 13x mode).

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

show more ...

debug_uart: Try not to use stack in printch

Spam detection software, running on the system "lists.denx.de",
has identified this incoming email as possible spam. The original
message has been attach

debug_uart: Try not to use stack in printch

Spam detection software, running on the system "lists.denx.de",
has identified this incoming email as possible spam. The original
message has been attached to this so you can view it or label
similar future email. If you have any questions, see
@@CONTACT_ADDRESS@@ for details.

Content preview: Previous change to create _printch causes the stack to be
used, breaking printch before stack is available. Inline _printch to prevent
this happening. Signed-off-by: Tim Chick <tim.chick@mediatek.com> --- [...]

Content analysis details: (6.3 points, 5.0 required)

pts rule name description
---- ---------------------- --------------------------------------------------
0.7 RCVD_IN_XBL RBL: Received via a relay in Spamhaus XBL
[188.29.165.105 listed in zen.spamhaus.org]
3.6 RCVD_IN_PBL RBL: Received via a relay in Spamhaus PBL
1.6 RCVD_IN_BRBL_LASTEXT RBL: No description available.
[188.29.165.105 listed in bb.barracudacentral.org]
0.4 RDNS_DYNAMIC Delivered to internal network by host with
dynamic-looking rDNS
Previous change to create _printch causes the stack to be used,
breaking printch before stack is available. Inline _printch to
prevent this happening.

Signed-off-by: Tim Chick <tim.chick@mediatek.com>

show more ...

Merge git://git.denx.de/u-boot-dm

debug_uart: output CR along with LF

The serial output from the debug UART carries on going far to the
right in the console.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-b

debug_uart: output CR along with LF

The serial output from the debug UART carries on going far to the
right in the console.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>

show more ...

Merge branch 'master' of git://git.denx.de/u-boot

Merge git://git.denx.de/u-boot-x86

debug_uart: Add an option to announce the debug UART

It is useful to see a message from the debug UART early during boot so that
you know things are working. Add an option to enable this. The messag

debug_uart: Add an option to announce the debug UART

It is useful to see a message from the debug UART early during boot so that
you know things are working. Add an option to enable this. The message will
be displayed as soon as debug_uart_init() is called.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

show more ...

debug_uart: Support board-specific UART initialisation

Some boards need to set things up before the debug UART can be used. On
these boards a call to debug_uart_init() is insufficient. When this opt

debug_uart: Support board-specific UART initialisation

Some boards need to set things up before the debug UART can be used. On
these boards a call to debug_uart_init() is insufficient. When this option
is enabled, the function board_debug_uart_init() will be called when
debug_uart_init() is called. You can put any code here that is needed to
set up the UART ready for use, such as set pin multiplexing or enable
clocks.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

show more ...

debug_uart: Adjust the declaration of debug_uart_init()

We want to be able to add other common code to this function. So change the
driver's version to have an underscore before it, just like
_debug

debug_uart: Adjust the declaration of debug_uart_init()

We want to be able to add other common code to this function. So change the
driver's version to have an underscore before it, just like
_debug_uart_putc(). Define debug_uart_init() to call this version.

Update all drivers to this new method.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

show more ...

debug_uart: Remove use of asmlinkage

This does not actually help any current arch. For x86 it makes it harder
to call (requires stack) and for ARM it has no effect. Drop it.

Signed-off-by: Simon Gl

debug_uart: Remove use of asmlinkage

This does not actually help any current arch. For x86 it makes it harder
to call (requires stack) and for ARM it has no effect. Drop it.

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

show more ...

Merge branch 'master' of git://git.denx.de/u-boot

Merge remote-tracking branch 'u-boot/master' into 'u-boot-arm/master'

Merge git://git.denx.de/u-boot-dm

serial: Support an early UART for debugging

This came up in a discussion on the mailing list here:

https://patchwork.ozlabs.org/patch/384613/

My concerns at the time were:
- it doesn't need to be

serial: Support an early UART for debugging

This came up in a discussion on the mailing list here:

https://patchwork.ozlabs.org/patch/384613/

My concerns at the time were:
- it doesn't need to be written in assembler
- it doesn't need to be ARM-specific

This patch provides a possible alternative. It works by allowing any serial
driver to export one init function and provide a putc() function. These
can be used to output debug data before the real serial driver is available.

This implementation does not depend on driver model, and it is possible for
it to operate without a stack on some architectures (e.g. PowerPC, ARM). It
provides the same features as the ARM-specific debug.S but with more UART
and architecture support.

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

show more ...