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It is very limited and minimal, only implements putc/puts.
This minimal driver is intended to be used in SPL, and other
size-constrained situations.
Reviewed-by: Neil Armstrong <[email protected]>
Signed-off-by: Ferass El Hafidi <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Neil Armstrong <[email protected]>
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Use the new symbol to refer to any 'SPL' build, including TPL and VPL
Signed-off-by: Simon Glass <[email protected]>
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As part of bringing the master branch back in to next, we need to allow
for all of these changes to exist here.
Reported-by: Jonas Karlman <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay
Ethernet"' I failed to notice that b4 noticed it was based on next and
so took that as the base commit and merged that part of next to master.
This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing
changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35.
Reported-by: Jonas Karlman <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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Remove <common.h> from this driver directory and when needed
add missing include files directly.
Reviewed-by: Peter Robinson <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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The last user of the NEEDS_MANUAL_RELOC has been removed in commit
26af162ac8f8 ("arch: m68k: Implement relocation")
Remove now unused NEEDS_MANUAL_RELOC code.
Signed-off-by: Marek Vasut <[email protected]>
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Migrate the rest of the CONFIG_SYS_POST macros over to CFG_SYS_POST
namespace.
Signed-off-by: Tom Rini <[email protected]>
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We move the existing CONFIG_POST_* functionality over to CFG_POST and
then introduce CONFIG_POST to Kconfig.
Signed-off-by: Tom Rini <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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The rest of the unmigrated CONFIG symbols in the CONFIG_SYS namespace do
not easily transition to Kconfig. In many cases they likely should come
from the device tree instead. Move these out of CONFIG namespace and in
to CFG namespace.
Signed-off-by: Tom Rini <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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This adds a serial driver which uses semihosting calls to read and write
to the host's console. For convenience, if CONFIG_DM_SERIAL is enabled,
we will instantiate a serial driver. This allows users to enable this
driver (which has no physical device) without modifying their device
trees or board files. We also implement a non-DM driver for SPL, or for
much faster output in U-Boot proper.
There are three ways to print to the console:
Method Baud
================== =====
smh_putc in a loop 170
smh_puts 1600
smh_write with :tt 20000
================== =====
These speeds were measured using a 175 character message with a J-Link
adapter. For reference, U-Boot typically prints around 2700 characters
during boot on this board. There are two major factors affecting the
speed of these functions. First, each breakpoint incurs a delay. Second,
each debugger memory transaction incurs a delay. smh_putc has a
breakpoint and memory transaction for every character. smh_puts has one
breakpoint, but still has to use a transaction for every character. This
is because we don't know the length up front, so OpenOCD has to check if
each character is nul. smh_write has only one breakpoint and one memory
transfer.
DM serial drivers can only implement a putc interface, so we are stuck
with the slowest API. Non-DM drivers can implement puts, which is vastly
more efficient. When the driver starts up, we try to open :tt. Since
this is an extension, this may fail. If it does, we fall back to
smh_puts. We don't check :semihosting-features, since there are
nonconforming implementations (OpenOCD) which don't implement it (but
*do* implement :tt).
Some semihosting implementations (QEMU) don't handle READC properly. To
work around this, we try to use open/read (much like for stdin) if
possible.
There is no non-blocking I/O available, so we don't implement pending.
This will cause __serial_tstc to always return true. If
CONFIG_SERIAL_RX_BUFFER is enabled, _serial_tstc will try and read
characters forever. To avoid this, we depend on this config being
disabled.
Signed-off-by: Sean Anderson <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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It is a pain to have to specify the value 10 in each call. Add a new
dectoul() function and update the code to use it.
Signed-off-by: Simon Glass <[email protected]>
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Move this out of the common header and include it only where needed. In
a number of cases this requires adding "struct udevice;" to avoid adding
another large header or in other cases replacing / adding missing header
files that had been pulled in, very indirectly. Finally, we have a few
cases where we did not need to include <asm/global_data.h> at all, so
remove that include.
Signed-off-by: Simon Glass <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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The sandbox is built with the SDL2 library with invokes the X11 library
which in turn calls getc(). But getc() in glibc is defined as
int getc(FILE *)
This does not match our definition.
int getc(void)
The sandbox crashes when called with parameter -l.
Rename our library symbol getc() to getchar().
Signed-off-by: Heinrich Schuchardt <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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serial_initialize is called only during the common init sequence, after
relocation (in common/board_r.c). Because it has a void return value, it
has to wrapped in initr_serial. In order to be able to get rid of this
indirection, make serial_initialize return int.
Remove extern from prototype in order to silence the following checkpatch
warning:
check: extern prototypes should be avoided in .h files
Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Ovidiu Panait <[email protected]>
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Move this uncommon header out of the common header.
Signed-off-by: Simon Glass <[email protected]>
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At present panic() is in the vsprintf.h header file. That does not seem
like an obvious choice for hang(), even though it relates to panic(). So
let's put hang() in its own header.
Signed-off-by: Simon Glass <[email protected]>
[trini: Migrate a few more files]
Signed-off-by: Tom Rini <[email protected]>
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This patch adds non-DM version for mtk hsuart driver and makes it
compatible with ns16550a driver in configuration.
This is needed in SPL with CONFIG_SPL_DM disabled for reducing size.
Signed-off-by: Weijie Gao <[email protected]>
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This file contains lots of internal details about the environment. Most
code can include env.h instead, calling the functions there as needed.
Rename this file and add a comment at the top to indicate its internal
nature.
Signed-off-by: Simon Glass <[email protected]>
Acked-by: Joe Hershberger <[email protected]>
Reviewed-by: Simon Goldschmidt <[email protected]>
[trini: Fixup apalis-tk1.c]
Signed-off-by: Tom Rini <[email protected]>
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Signed-off-by: Christophe Leroy <[email protected]>
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Add parameter description.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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The only platform left for the AU1x00 SoCs was the pb1x00 platform, an
apparent clone of the dbau1x00 platform. As pb1x00 had no listed
maintainer I am assuming that it is also orphaned. Remove this platform
and then remove the unused SoC support.
Cc: Daniel Schwierzeck <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
Reviewed-by: Daniel Schwierzeck <[email protected]>
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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 <[email protected]>
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This patch removes call of serial initialisation functions that
are not implemented anymore.
Signed-off-by: Christophe Leroy <[email protected]>
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commit 2eb48ff7a210d ("powerpc, 8260: remove support for mpc8260")
removed support for 8260 CPU.
This patch remove some remainders.
Signed-off-by: Christophe Leroy <[email protected]>
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Add missing static to serial_stub_puts().
Unexport serial_stub_{getc,tstc} because they are used locally.
Signed-off-by: Masahiro Yamada <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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we removed 5xx support. So delete some forgotten remains.
Signed-off-by: Heiko Schocher <[email protected]>
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we removed 82xx support. Missed some 82xx remains,
remove them now.
Signed-off-by: Heiko Schocher <[email protected]>
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There was for long time no activity in the mpx5xxx area.
We need to go further and convert to Kconfig, but it
turned out, nobody is interested anymore in mpc5xxx,
so remove it.
Signed-off-by: Heiko Schocher <[email protected]>
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Signed-off-by: Vagrant Cascadian <[email protected]>
Acked-by: Marek Vasut <[email protected]>
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Both altera_jtag_serial_initialize() and
altera_serial_initialize() are no longer used after
they are converted to driver model.
Signed-off-by: Thomas Chou <[email protected]>
Acked-by: Simon Glass <[email protected]>
Acked-by: Marek Vasut <[email protected]>
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Signed-off-by: Kamil Lulko <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
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These are still non-generic boards.
Signed-off-by: Masahiro Yamada <[email protected]>
Cc: Greg Ungerer <[email protected]>
Acked-by: Marek Vasut <[email protected]>
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While at it, sort them.
Cc: Tom Rini <[email protected]>
Cc: Simon Glass <[email protected]>
Signed-off-by: Jeroen Hofstee <[email protected]>
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Fix a trivial conflict over adding <dm.h>
Conflicts:
arch/arm/cpu/armv7/omap3/board.c
Signed-off-by: Tom Rini <[email protected]>
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Signed-off-by: Jeroen Hofstee <[email protected]>
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The UniPhier serial driver has been converted to driver model.
Let's remove uniphier_serial_initialize() call from the old
serial driver framework.
Signed-off-by: Masahiro Yamada <[email protected]>
Acked-by: Simon Glass <[email protected]>
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The driver for on-chip UART used on Panasonic UniPhier platform.
Signed-off-by: Masahiro Yamada <[email protected]>
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The stdio_dev structure has a private pointer for its creator, but it is
not set up by the serial system. Set it to point to the serial device so
that it can be found by code called by stdio.
Signed-off-by: Simon Glass <[email protected]>
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For sandbox we have a fallback console which is used very early in
U-Boot, before serial drivers are available. Rather than try to guess
when to switch to the real console, add a flag so we can be sure. This
makes sure that sandbox can always output a panic() message, for example,
and avoids silent failure (which is very annoying in sandbox).
Signed-off-by: Simon Glass <[email protected]>
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At present stdio device functions do not get any clue as to which stdio
device is being acted on. Some implementations go to great lengths to work
around this, such as defining a whole separate set of functions for each
possible device.
For driver model we need to associate a stdio_dev with a device. It doesn't
seem possible to continue with this work-around approach.
Instead, add a stdio_dev pointer to each of the stdio member functions.
Note: The serial drivers have the same problem, but it is not strictly
necessary to fix that to get driver model running. Also, if we convert
serial over to driver model the problem will go away.
Code size increases by 244 bytes for Thumb2 and 428 for PowerPC.
22: stdio: Pass device pointer to stdio methods
arm: (for 2/2 boards) all +244.0 bss -4.0 text +248.0
powerpc: (for 1/1 boards) all +428.0 text +428.0
Signed-off-by: Simon Glass <[email protected]>
Acked-by: Marek Vasut <[email protected]>
Reviewed-by: Marek Vasut <[email protected]>
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gd->bd->bi_baudrate is a copy of gd->baudrate.
Since baudrate is a common feature for all architectures,
keep gd->baudrate only.
It is true that bi_baudrate was passed to the kernel in that structure
but it was a long time ago.
Signed-off-by: Masahiro Yamada <[email protected]>
Cc: Tom Rini <[email protected]>
Cc: Simon Glass <[email protected]>
Cc: Wolfgang Denk <[email protected]>
Cc: Heiko Schocher <[email protected]>
Acked-by: Michal Simek <[email protected]> (For microblaze)
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's/zynq_serial_initalize/zynq_serial_initialize/g'
serial_initialize is used by all serial drivers.
Signed-off-by: Michal Simek <[email protected]>
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Driver for non-standard on-chip UART, instantiated in the ARC (Synopsys)
FPGA Boards such as ARCAngel4/ML50x
Signed-off-by: Alexey Brodkin <[email protected]>
Cc: Mischa Jonker <[email protected]>
Cc: Francois Bedard <[email protected]>
Cc: Tom Rini <[email protected]>
Cc: Wolfgang Denk <[email protected]>
Cc: Stefano Babic <[email protected]>
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This driver is no longer used, remove it.
Signed-off-by: Marek Vasut <[email protected]>
Cc: Albert Aribaud <[email protected]>
Cc: Michael Schwingen <[email protected]>
Cc: Tom Rini <[email protected]>
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Since commit 5dc5f36 removed B2 board support,
there are no boards enabling serial_s3c44b0.
Signed-off-by: Masahiro Yamada <[email protected]>
Cc: Wolfgang Denk <[email protected]>
Cc: Andrea Scian <[email protected]>
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Conflicts:
drivers/serial/serial.c
The conflict above was a trivial case of adding one init
function in each branch, and manually resolved in merge.
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The driver makes it possible to use an application UART as
the U-Boot output console for Freescale i.MX23/i.MX28 devices.
Signed-off-by: Andreas Wass <[email protected]>
Cc: Fabio Estevam <[email protected]>
Cc: Marek Vasut <[email protected]>
Acked-by: Marek Vasut <[email protected]>
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Register arm_dcc with drivers/serial/serial.c
Signed-off-by: Jagannadha Sutradharudu Teki <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
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Signed-off-by: Wolfgang Denk <[email protected]>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <[email protected]>
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