u-boot.git/include/debug_uart.h, branch v2026.04-rc1 Unnamed repository; edit this file 'description' to name the repository. debug_uart: Replace debug functions with dummies if CONFIG_DEBUG_UART is not set 2025-06-06T09:12:20+00:00 Lukasz Czechowski lukasz.czechowski@thaumatec.com 2025-05-20T11:36:42+00:00 0fb68337f2482f0397681b92d13bcfbf3741cd06 In case DEBUG UART is not used, define dummy macros replacing the actual function implementations that will not be available. This allows to compile code and avoid linker errors. Redefine the DEBUG_UART_FUNCS macro if DEBUG UART is not available, to avoid compilation errors. Signed-off-by: Lukasz Czechowski <lukasz.czechowski@thaumatec.com> Reviewed-by: Kever Yang <kever.yang@rock-chips.com> 
In case DEBUG UART is not used, define dummy macros replacing
the actual function implementations that will not be available.
This allows to compile code and avoid linker errors.
Redefine the DEBUG_UART_FUNCS macro if DEBUG UART is not available,
to avoid compilation errors.

Signed-off-by: Lukasz Czechowski <lukasz.czechowski@thaumatec.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
debug_uart: Add CR before and after announce string 2020-07-08T21:21:46+00:00 Stefan Roese sr@denx.de 2020-05-15T05:09:03+00:00 ce6515ecee1fa060a7a4e79eafc8db5f86d259a0 Add linefeeds before and after the announce string. This makes the output easier to read, especially if some text follows the announce message without a specific additional CR. Signed-off-by: Stefan Roese <sr@denx.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> 
Add linefeeds before and after the announce string. This makes the
output easier to read, especially if some text follows the announce
message without a specific additional CR.

Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
debug_uart.h: make <debug_uart.h> self-contained 2020-03-16T20:42:50+00:00 Masahiro Yamada masahiroy@kernel.org 2020-02-24T17:24:54+00:00 77c4ba54c678d5c892e4b692640424dbfe649e30 'uint' is not a primitive type. You need to include <linux/types.h> or otherwise change it to (unsigned int). Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Kever Yang <kever.yang@rock-chips.com> 
'uint' is not a primitive type. You need to include <linux/types.h>
or otherwise change it to (unsigned int).

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
debug_uart: Add printdec 2019-07-19T03:11:09+00:00 Jagan Teki jagan@amarulasolutions.com 2019-07-15T18:28:47+00:00 3940ab6523336c6d37dfe6b05a0dbd6ea1785445 Add printdec, this would help to print an output a decimalism value. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Signed-off-by: YouMin Chen <cym@rock-chips.com> Reviewed-by: Kever Yang <Kever.yang@rock-chips.com> 
Add printdec, this would help to print an
output a decimalism value.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: YouMin Chen <cym@rock-chips.com>
Reviewed-by: Kever Yang <Kever.yang@rock-chips.com>
SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07T13:34:12+00:00 Tom Rini trini@konsulko.com 2018-05-06T21:58:06+00:00 83d290c56fab2d38cd1ab4c4cc7099559c1d5046 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> 
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>
serial: omap: Support debug UART 2017-05-12T02:21:27+00:00 Lokesh Vutla lokeshvutla@ti.com 2017-04-22T10:27:25+00:00 a52cf086ace7e6107f399fcf37059dc9e02916f3 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> 
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>
debug_uart: Try not to use stack in printch 2017-04-12T17:28:30+00:00 tim.chick tim.chick@mediatek.com 2017-04-06T15:32:41+00:00 6bacc73621066a1fa9c1ac3d1578980b8a6d3b27 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> 
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>
debug_uart: output CR along with LF 2016-03-14T21:34:50+00:00 Masahiro Yamada yamada.masahiro@socionext.com 2016-03-08T09:19:10+00:00 b391d743363247bf502fb0b5ca098246ea5a1512 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> 
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>
debug_uart: Add an option to announce the debug UART 2015-10-21T13:46:50+00:00 Simon Glass sjg@chromium.org 2015-10-19T01:51:25+00:00 c7fefcb9125bbd183dc095996c6747273043d988 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> 
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>
debug_uart: Support board-specific UART initialisation 2015-10-21T13:46:50+00:00 Simon Glass sjg@chromium.org 2015-10-19T01:51:24+00:00 0e977bc1455699fd8a9303ee3e8fd66a3c8eaced 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> 
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>