Lower case should be used for function names. Update this driver and its
callers accordingly.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Typedefs should not be used in U-Boot and structs should be lower case.
Update the code to use struct ns16550 consistently.
Put a header guard on the file while we are here.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
At present various drivers etc. access the device's 'seq' member directly.
This makes it harder to change the meaning of that member. Change access
to go through a function instead.
The drivers/i2c/lpc32xx_i2c.c file is left unchanged for now.
Signed-off-by: Simon Glass <sjg@chromium.org>
This name is far too long. Rename it to remove the 'data' bits. This makes
it consistent with the platdata->plat rename.
Signed-off-by: Simon Glass <sjg@chromium.org>
We use 'priv' for private data but often use 'platdata' for platform data.
We can't really use 'pdata' since that is ambiguous (it could mean private
or platform data).
Rename some of the latter variables to end with 'plat' for consistency.
Signed-off-by: Simon Glass <sjg@chromium.org>
This construct is quite long-winded. In earlier days it made some sense
since auto-allocation was a strange concept. But with driver model now
used pretty universally, we can shorten this to 'auto'. This reduces
verbosity and makes it easier to read.
Coincidentally it also ensures that every declaration is on one line,
thus making dtoc's job easier.
Signed-off-by: Simon Glass <sjg@chromium.org>
Rather than implementing our own circular queue, use membuff. This allows
us to read multiple bytes at once into the serial input.
Signed-off-by: Simon Glass <sjg@chromium.org>
CONFIG_OF_CONTROL is always enabled for sandbox (as it should be for all
boards), so we can drop it. Also use IS_ENABLED() for the SPL check.
Signed-off-by: Simon Glass <sjg@chromium.org>
Since sandbox's SPL is build with of-platadata, we should not use
U_BOOT_DEVICE() declarations as well. Drop them.
Signed-off-by: Simon Glass <sjg@chromium.org>
There also a need to check return values to make sure that clocks were
enabled and setup properly.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
By using a hypervisor call, we can implement DEBUG_UART on xen.
This will allow us to see messages even earlier than serial_init().
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
At present, DM_FLAG_PRE_RELOC is set only if !OF_CONTROL.
It doesn't make sense for this para-virtualized driver.
With this patch applied, you will be able to see early boot messages:
U-Boot 2020.10-00001-ge442e71a6c52-dirty (Oct 15 2020 - 11:02:25 +0900)
xenguest
Xen virtual CPU
Model: XENVM-4.15
DRAM: 128 MiB
PVBLOCK:
(XEN) gnttab_mark_dirty not implemented yet
pvblock: 0
In: hypervisor
Out: hypervisor
Err: hypervisor
xenguest#
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
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 <xypron.glpk@gmx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This endinness changes are taken from linux uartlite driver.
Reset TX fifo in control register and check TX fifo empty
flag in lower byte of the status register to detect if it
is a little endian system. Based on this check, program the
registers with le32 or be32 through out the driver.
Signed-off-by: T Karthik Reddy <t.karthik.reddy@xilinx.com>
Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Zynq/ZynqMP/Versal IPs should be possible to called also from Microblaze in
PL and vice versa. That's why change dependencies and do not limit enabling
just for some platforms.
This is follow up patch based on commit 664e16ce99 ("xilinx: kconfig:
Change Kconfig dependencies for Xilinx drivers").
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
If the SCIF is receiving data quickly enough, it may happen that the
SCxSR_RDxF flag is cleared in sh_serial_getc_generic(), while the
FIFO still contains data. If that happens, the serial_getc_check()
reports no data in the FIFO as the flag is no longer set. Add one
more check, if the SCxSR_RDxF is not set, read out the FIFO level
and if there are still characters in the FIFO, permit reading them
out.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
When you enable CONFIG_OF_LIVE, you will end up with a lot of
conversions.
To help this tedious work, this commit converts devfdt_get_addr_ptr()
to dev_read_addr_ptr() by coccinelle. I also removed redundant casts
because dev_read_addr_ptr() returns an opaque pointer.
To generate this commit, I ran the following semantic patch
excluding include/dm/.
<smpl>
@@
type T;
expression dev;
@@
-(T *)devfdt_get_addr_ptr(dev)
+dev_read_addr_ptr(dev)
@@
expression dev;
@@
-devfdt_get_addr_ptr(dev)
+dev_read_addr_ptr(dev)
</smpl>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Add support for Xen para-virtualized serial driver. This
driver fully supports serial console for the virtual machine.
Please note that as the driver is initialized late, so no banner
nor memory size is visible.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Signed-off-by: Anastasiia Lukianenko <anastasiia_lukianenko@epam.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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 <sjg@chromium.org>
Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
IPQ40xx and currently supported Snapdragon boards don't use the same one
so enable reading it from DT, if no DT property is found default value
is the same as the previous define.
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Reviewed-By: Ramon Fried <rfried.dev@gmail.com>
This checks and handles RX errors on the Amlogic UART controller
after experiencing errors on the Khadas VIM3 & VIM3L when UART AO A
lines are not connected.
When the RX line is not connected, the first byte is erroneous and breaks
the U-Boot autoboot, breaking automatic boot.
This checks and drops any erroneous RX byte on pending and getc callbacks
to avoid returning true to pending when an error byte is in the FIFO.
Fixes: bfcef28ae4 ("arm: add initial support for Amlogic Meson and ODROID-C2")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Tested-by: Guillaume La Roque <glaroque@baylibre.com>
When you enable CONFIG_OF_LIVE, you will end up with a lot of
conversions.
To generate this commit, I used coccinelle excluding drivers/core/,
include/dm/, and test/
The semantic patch that makes this change is as follows:
<smpl>
@@
expression dev;
@@
-devfdt_get_addr(dev)
+dev_read_addr(dev)
</smpl>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Use the _ptr suffixed variant instead of casting. Also, convert it to
dev_read_addr_ptr(), which is safe to CONFIG_OF_LIVE.
One curious part is an error check like follows in
drivers/watchdog/omap_wdt.c:
priv->regs = (struct wd_timer *)devfdt_get_addr(dev);
if (!priv->regs)
return -EINVAL;
devfdt_get_addr() returns FDT_ADDR_T_NONE (i.e. -1) on error.
So, this code does not catch any error in DT parsing.
dev_read_addr_ptr() returns NULL on error, so this error check
will work.
I generated this commit by the following command:
$ find . -name .git -prune -o -name '*.[ch]' -type f -print | \
xargs sed -i -e 's/([^*)]*\*)devfdt_get_addr(/dev_read_addr_ptr(/'
I manually fixed drivers/usb/host/ehci-mx6.c
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
- Fix SiFive HiFive Unleashed board booting failure problem.
- Enable SiFive fu540 PWM driver.
- Support SiFive fu540: SPI boot.
- Update OpenSBI used for RISC-V CI testing.
- Revert "riscv: Allow use of reset drivers".
- Revert "Revert "riscv: sifive: fu540: Add gpio-restart support"".
- sysreset: syscon:
- Don't assume default value for offset and mask property.
- Support value property.
- qemu: Add syscon reboot and poweroff support.
- Fix SIFIVE debug serial dependency.
- Fix linking error when building u-boot-spl with no SMP support.
- AE350 use fdtdec_get_addr_size_auto_noparent to parse smc reg.
- Make memory node available to SPL in hifive-unleashed-a00-u-boot.dtsi
- SiFive fu540 avoid using hardcoded ram base and size.
The commit 4cc24aeaf4 ("serial: Add missing Kconfig dependencies for
debug consoles") has added incorrect dependency for SIFIVE debug uart which
should depend on SIFIVE driver instead of PL01x.
Fixes: 4cc24aeaf4 ("serial: Add missing Kconfig dependencies for debug consoles")
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Leo Liang <ycliang@andestech.com>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
When you enable CONFIG_OF_LIVE, you will end up with a lot of
conversions.
To generate this commit, I used coccinelle excluding drivers/core/,
include/dm/, and test/
The semantic patch that makes this change is as follows:
<smpl>
@@
expression dev;
@@
-devfdt_get_addr(dev)
+dev_read_addr(dev)
</smpl>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Use the _ptr suffixed variant instead of casting. Also, convert it to
dev_read_addr_ptr(), which is safe to CONFIG_OF_LIVE.
One curious part is an error check like follows in
drivers/watchdog/omap_wdt.c:
priv->regs = (struct wd_timer *)devfdt_get_addr(dev);
if (!priv->regs)
return -EINVAL;
devfdt_get_addr() returns FDT_ADDR_T_NONE (i.e. -1) on error.
So, this code does not catch any error in DT parsing.
dev_read_addr_ptr() returns NULL on error, so this error check
will work.
I generated this commit by the following command:
$ find . -name .git -prune -o -name '*.[ch]' -type f -print | \
xargs sed -i -e 's/([^*)]*\*)devfdt_get_addr(/dev_read_addr_ptr(/'
I manually fixed drivers/usb/host/ehci-mx6.c
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This UART controller is integrated with a FIFO. Enable it.
You can put the next character into the FIFO while the transmitter
is sending out the current character. This works slightly faster.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Ensure the transmitter is empty when chaining the baudrate or any
hardware settings. If a character is remaining in the transmitter,
the console will be garbled.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
After all, I am not a big fan of using a structure to represent the
hardware register map.
You do not need to know the entire register map.
Add only necessary register macros.
Use FIELD_PREP() instead of maintaining a pair of shift and mask.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Currently when using OF_PLATDATA the binding between devices and drivers
is done trying to match the compatible string in the node with a driver
name. However, usually a single driver supports multiple compatible strings
which causes that only devices which its compatible string matches a
driver name get bound.
To overcome this issue, this patch adds the U_BOOT_DRIVER_ALIAS macro,
which generates no code at all, but allows an easy way to declare driver
name aliases. Thanks to this, dtoc could be improve to look for the driver
name based on its alias when it populates the U_BOOT_DEVICE entry.
Signed-off-by: Walter Lozano <walter.lozano@collabora.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
When using OF_PLATDATA, the bind process between devices and drivers
is performed trying to match compatible string with driver names.
However driver names are not strictly defined, and also there are different
names used when declaring a driver with U_BOOT_DRIVER, the name of the
symbol used in the linker list and the used in the struct driver_info.
In order to make things a bit more clear, rename the drivers names. This
will also help for further OF_PLATDATA improvements, such as checking
for valid driver names.
Signed-off-by: Walter Lozano <walter.lozano@collabora.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Add a fix for sandbox of-platdata to avoid using an invalid ANSI colour:
Signed-off-by: Simon Glass <sjg@chromium.org>
Debug console is the part of serial driver in the same file. It means to be
able to enable debug console you also need to enable driver itself.
That's why add all dependecies and list only debug consoles which are
enabled based on driver selection to avoid compilation error when user
asks for certain debug console but driver is not enable for it.
Error:
aarch64-linux-gnu-ld.bfd: common/built-in.o: in function `putc':
/home/monstr/data/disk/u-boot/common/console.c:513: undefined reference to `printch'
aarch64-linux-gnu-ld.bfd: common/built-in.o: in function `puts':
/home/monstr/data/disk/u-boot/common/console.c:563: undefined reference to `printch'
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
[trini: Fix ns16550 dependency, add ZYNQ_SERIAL, change S5P]
Signed-off-by: Tom Rini <trini@konsulko.com>
The symbol "CONFIG_ARM_DCC" is used to control building
drivers/serial/arm_dcc.c. Provide a simple Kconfig entry for this.
Cc: Luca Ceresoli <luca@lucaceresoli.net>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Tom McLeod <tom.mcleod@opalkelly.com>
Cc: Mike Looijmans <mike.looijmans@topic.nl>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Luca Ceresoli <luca@lucaceresoli.net>
We cannot rely on a parent bus that needs to be probed, until we know that
it is probed. That means that code in the ofdata_to_platdata() method
cannot rely on the parent bus being probed.
Move the ofdata code in the two serial drivers into a probe() method.
This fixes serial output on rpi_3b_32b with the following config.txt
options:
enable_uart=1
gpu_freq=250
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Even though the PL011 UART driver claims to be DM compliant, it does not
really a good job with parsing DT nodes. U-Boot seems to adhere to a
non-standard binding, either requiring to have a "skip-init" property in
the node, or to have an extra "clock" property holding the base
*frequency* value for the baud rate generator.
DTs in the U-Boot tree seem to have been hacked to match this
requirement.
The official binding does not mention any of these properties, instead
recommends a standard "clocks" property to point to the baud base clock.
Some boards use simple "fixed-clock" providers, which U-Boot readily
supports, so let's add some simple DM clock code to the PL011 driver to
learn the rate of the first clock, as described by the official binding.
These clock nodes seem to be not ready very early in the boot process,
so provide a fallback value, by re-using the already existing
CONFIG_PL011_CLOCK variable.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
[trini: Add <clock_legacy.h> for get_bus_freq() for layerscape
platforms]
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
