Simon Glass [Mon, 21 Oct 2024 08:19:29 +0000 (10:19 +0200)]
cmd: Move meminfo command into its own file
In preparation for expanding this command, move it into a separate file.
Rename the function to remove the extra underscore. Update the number of
arguments to 1, since 3 is incorrect.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Simon Glass [Mon, 21 Oct 2024 08:19:28 +0000 (10:19 +0200)]
bootstage: Allow counting memory without strings
The bootstage array includes pointers to strings but not the strings
themselves. The strings are added when stashing, but including them in
the size calculation gives an inflated view of the amount of space used
by the array.
Update this function so it can return the amount of memory used by the
bootstage structures themselves, without the strings which they point
to.
Simon Glass [Mon, 21 Oct 2024 08:19:26 +0000 (10:19 +0200)]
common: Tidy up how malloc() is inited
The call to malloc() is a bit strange. The naming of the arguments
suggests that an address is passed, but in fact it is a pointer, at
least in the board_init_r() function and SPL equivalent.
Update it to work as described. Add a function comment as well.
Note that this does adjustment does not extend into the malloc()
implementation itself, apart from changing mem_malloc_init(), since
there are lots of casts and pointers and integers are used
interchangeably.
Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Alex Shumsky [Tue, 15 Oct 2024 20:29:31 +0000 (23:29 +0300)]
i2c: i2c-gpio: add support for i2c-gpio,sda-output-only
Some I2C slave devices are read-only and don't even answer with NACK.
For example FD65x segment LED controllers.
Make them usable with i2c-gpio,sda-output-only that are already supported
by Linux 6.3+.
Signed-off-by: Alex Shumsky <alexthreed@gmail.com> Reviewed-by: Heiko Schocher <hs@denx.de>
* Add document describing Ethernet boot on AM62x SoC
* Fix typo in blkmap command example
UEFI:
* Avoid #ifdef in efi_setup.c
* Reduce message noisiness if ESP is missing
* Remove ERROR:, WARNING: prefixes in messages
* Use blk_create_devicef() in block device driver
cmd/upl.c:75:51: warning: format ‘%lx’ expects argument of type
‘long unsigned int’, but argument 3 has type ‘size_t’
{aka ‘unsigned int’} [-Wformat=]
75 | printf("UPL handoff written to %lx size %lx\n", addr, abuf_size(&buf));
| ~~^ ~~~~~~~~~~~~~~~
| | |
| | size_t {aka unsigned int}
| long unsigned int
| %x
Fixes: 264f4b0b34c0 ("upl: Add a command") Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Reviewed-by: Neha Malcom Francis <n-francis@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Caleb Connolly [Fri, 18 Oct 2024 13:51:07 +0000 (15:51 +0200)]
lmb: notify when adjacent regions are added
lmb_add_region() returns a positive integer if the added regions causes
existing regions to be coalesced. We still want to notify the EFI
subsystem about these added regions though, so adjust lmb_add() to only
bail on errors.
This fixes EFI memory allocation on boards with adjacent memory banks as is the
case on several Qualcomm boards like the RB3 Gen 2.
Fixes: 2f6191526a13 (lmb: notify of any changes to the LMB memory map) Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org> Reviewed-by: Sughosh Ganu <sughosh.ganu@linaro.org> Tested-by: Neil Armstrong <neil.armstrong@linaro.org> Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Andy Shevchenko [Sat, 5 Oct 2024 19:12:00 +0000 (22:12 +0300)]
x86: cpu: Add missing header inclusion
Without asm/cpu_x86.h inclusion a compiler is not happy:
arch/x86/cpu/cpu_x86.c:14:5: warning: no previous prototype for ‘cpu_x86_bind’ [-Wmissing-prototypes]
arch/x86/cpu/cpu_x86.c:29:5: warning: no previous prototype for ‘cpu_x86_get_vendor’ [-Wmissing-prototypes]
arch/x86/cpu/cpu_x86.c:41:5: warning: no previous prototype for ‘cpu_x86_get_desc’ [-Wmissing-prototypes]
arch/x86/cpu/cpu_x86.c:55:5: warning: no previous prototype for ‘cpu_x86_get_count’ [-Wmissing-prototypes]
Add missing header inclusion.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Andy Shevchenko [Sat, 5 Oct 2024 19:11:59 +0000 (22:11 +0300)]
x86: cpu: Add a few prototypes to the header file
The compiler is not happy to have no prototypes for the functions that
are not defined static. Add them. This helps avoiding the compiler warnings:
arch/x86/cpu/cpu.c:197:13: warning: no previous prototype for ‘board_final_init’ [-Wmissing-prototypes]
arch/x86/cpu/cpu.c:205:13: warning: no previous prototype for ‘board_final_cleanup’ [-Wmissing-prototypes]
arch/x86/cpu/cpu.c:307:5: warning: no previous prototype for ‘reserve_arch’ [-Wmissing-prototypes]
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Andy Shevchenko [Sat, 5 Oct 2024 19:11:58 +0000 (22:11 +0300)]
x86: cpu: Mark a few functions static
Some functions are not used anywhere except the same file
where they are defined. Mark them static. This helps avoiding
the compiler warnings:
arch/x86/cpu/cpu.c:343:6: warning: no previous prototype for ‘detect_coreboot_table_at’ [-Wmissing-prototypes]
arch/x86/cpu/mtrr.c:90:6: warning: no previous prototype for ‘mtrr_write_all’ [-Wmissing-prototypes]
arch/x86/cpu/i386/interrupt.c:240:6: warning: no previous prototype for ‘__do_irq’ [-Wmissing-prototypes]
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Andy Shevchenko [Sat, 5 Oct 2024 19:11:57 +0000 (22:11 +0300)]
x86: cpu: Use default print_cpuinfo() for all
Most of the copies of the print_cpuinfo() call the default method.
Remove all of those in order to have only the default one when
no `cpu` command is compiled.
This also helps avoiding compiler warning, e.g.:
arch/x86/cpu/tangier/tangier.c:23:5: warning: no previous prototype for ‘print_cpuinfo’ [-Wmissing-prototypes]
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Simon Glass [Mon, 14 Oct 2024 22:31:58 +0000 (16:31 -0600)]
expo: Allow menu items to have values
At present menu items are stored according to their sequence number in
the menu. In some cases we may want to have holes in that sequence, or
not use a sequence at all.
Add a new 'value' property for menu items. This will be used for
reading and writing, if present. If there is no 'value' property, then
the normal sequence number will be used instead.
Simon Glass [Mon, 14 Oct 2024 22:31:57 +0000 (16:31 -0600)]
expo: Use standard numbering for save and discard
Set aside some expo IDs for 'save' and 'discard' buttons. This avoids
needing to store the IDs for these. Adjust the documentation and expo
tool for the new EXPOID_BASE_ID value.
Ignore these objects when saving and loading the cedit, since they do
not contain real data.
Adjust 'cedit run' to return failure when the user exits the expo
without saving. Update the test for this change as well.
Simon Glass [Mon, 14 Oct 2024 22:31:55 +0000 (16:31 -0600)]
expo: Place menu items to the right of all labels
At present a fixed position is used for menu items, 200 pixels to the
right of the left side of the labels. This means that a menu item with
a very long label may overlap the items.
It seems better to calculate the maximum label width and then place the
items to the right of all of them.
To implement this, add a new struct to containing arrangement
information. Calculate it before doing the actual arrangement. Add a
new style item which sets the amount of space from the right side of
the labels to left side of the items.
Simon Glass [Mon, 14 Oct 2024 22:31:54 +0000 (16:31 -0600)]
video: Avoid starting a new line to close to the bottom
When starting a new text line, an assumption is made that the current
vertical position is a multiple of the character height. When this is
not true, characters can be written after the end of the framebuffer.
This can causes crashes and strange errors from QEMU.
Adjust the scrolling check when processing a newline character, to
avoid any problems.
Add some comments to make things a little clearer.
Simon Glass [Mon, 14 Oct 2024 22:31:53 +0000 (16:31 -0600)]
video: Add a dark-grey console colour
This is useful for highlighting something with a black background, as
is needed with cedit when using a white-on-black console. Add this as
a new colour.
Marek Vasut [Sat, 5 Oct 2024 14:33:37 +0000 (16:33 +0200)]
sandbox: dts: Add missing sandbox, emul phandle to sandbox-pmic
This phandle was missing in the sandbox DT, add it, otherwise sandbox-i2c
driver cannot look up the emulator via i2c_emul_find(). This fixes the
following i2c_emul_find() error:
"
$ ./u-boot -Dc ""
...
i2c_emul_find() No emulators for device 'sandbox_pmic'
sandbox_pmic_write() write error to device: 0000000018c568d0 register: 0x0!
out_set_value() PMIC write failed: -5
i2c_emul_find() No emulators for device 'sandbox_pmic'
sandbox_pmic_write() write error to device: 0000000018c568d0 register: 0x0!
out_set_value() PMIC write failed: -5
...
"
Signed-off-by: Marek Vasut <marex@denx.de> Reviewed-by: Heiko Schocher <hs@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
Simon Glass [Mon, 30 Sep 2024 18:51:36 +0000 (12:51 -0600)]
u_boot_pylib: Support running coverage on selected functions
At present run_test_coverage() assumes you want code coverage for the
entire code base. This is the normal situation, but sometimes it is
useful to see the coverage provided by just a single test. Add support
for this.
Simon Glass [Wed, 25 Sep 2024 10:44:53 +0000 (12:44 +0200)]
sandbox_spl: Restrict use of UPL when not enabled
With sandbox_spl we want to use the file-based boot in CI, so that this
flow is tested. The recent UPL change enabled booting via that method,
thus overriding the file-based boot.
Correct this by using UPL only when the --upl flag is given.
Signed-off-by: Simon Glass <sjg@chromium.org> Fixes: 91fde8e1764 ("sandbox: Add an SPL loader for UPL")
binman: implement signing FIT images during image build
The patch implement new property 'fit,sign' that can be declared
at the top-level 'fit' node. If that option is declared, fit tryies
to detect private keys directory among binman include directories.
That directory than passed to mkimage using '-k' flag and that enable
signing of FIT.
Signed-off-by: Alexander Kochetkov <al.kochet@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Renumbered files, moved new tests to end: Signed-off-by: Simon Glass <sjg@chromium.org>
binman: fix passing loadables to mkimage on first run
FIT use mkimage from BuildSectionData() to build FIT entry contents.
BuildSectionData() get called several times during building FIT image.
Currently when fit inserts loadables, it use self._loadables property that
contain loadables computed during previuos BuildSectionData() invocation.
So for the first run it use empty list and pass no loadables to mkimage.
That makes problem for adding signature to FIT image because mkimage
fails to add signature and aborts building FIT if no loadables provided.
The patch fixes described behaviour in a way that BuildSectionData() uses
recently calculated loadables value, not previosly calculated.
Signed-off-by: Alexander Kochetkov <al.kochet@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
When BLK is not enabled but BOOTSTD is, some features of standard boot
become unavailable. Add a check for this in the only site that is
currently apparent.
Simon Glass [Sun, 1 Sep 2024 22:27:27 +0000 (16:27 -0600)]
blk: Make functions available unconditionally
Some boards still don't enable BLK but we want to be able to at least
compile the code which relies on this. For example, bootstd includes
calls to blk_...() functions, albeit with a check for BLK so that the
code is eliminated by the compiler.
Reduce the scope of the BLK #ifdef to help with this.
Simon Glass [Wed, 28 Aug 2024 01:44:26 +0000 (19:44 -0600)]
x86: Avoid timer-clock overflow
When the clock speed is above about 4GHz, e.g. on modern PC hardware,
the timer overflows, resulting in a much lower frequency than expected.
Deal with this by capping the clock speed.
It would be possible to move to a 64-bit value for the clock, but that
is a pain to deal with. A better approach might be to express the clock
in MHz but that is left for later consideration.
Tom Rini [Mon, 22 Jan 2024 14:35:12 +0000 (09:35 -0500)]
x86: Make default_print_cpuinfo be a weak alias for print_cpuinfo
While a few SoCs have a unique print_cpuinfo function, a number of them
just use default_print_cpuinfo. Make default_print_cpuinfo have a weak
alias to provie print_cpuinfo.
Simon Glass [Mon, 8 Jan 2024 00:14:55 +0000 (17:14 -0700)]
coreboot: Switch to a monospaced font
The default font is proportional, with different character widths.
Select a monospace font for coreboot so that the 'dm tree' output lines
up correctly.
The EFI block device driver is the only user of blk_create_device() outside
the block device uclass. Use blk_create_devicef() instead like other block
device drivers.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Reviewed-by: Simon Glass <sjg@chromium.org>
- Switch to using upstream DT on DH i.MX8MP DHCOM PDK2/PDK3.
- Add ability to build fallback DTBOs from arch/$(ARCH)/dts.
- Remove fdt_high and initrd_high env variables from imx6-dhcom.
- Add dummy clk for imx8.
- Fix DT corruption in imx8_cpu.
- Improve DDR stability on pico-imx7d.
Tom Rini [Tue, 15 Oct 2024 01:33:10 +0000 (19:33 -0600)]
Azure: Update to latest containers
Soon Azure will be removing the macOS-12 container in following their
normal support schedule. Move us to macOS-14 so we won't have problems
there for a while. At the same time, our Windows container is the oldest
supported, so move to the newer option. Finally, Ubuntu 22.04 is the
middle option currently, but 24.04 should be fine.
EFI variables can be stored in a file on the EFI system partition. If that
partition is missing we are writing two error messages per variable. This
is too noisy.
Just warn once about the missing ESP.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Peng Fan [Fri, 18 Oct 2024 07:34:32 +0000 (15:34 +0800)]
cpu: imx8_cpu: Avoid revision to corrupt device tree
U-Boot device tree is padded just after U-Boot proper.
After the whole stuff loaded to DRAM space, the device tree
area is conflict with BSS region before U-Boot relocation.
So any write to BSS area before reloc_fdt will corrupt the
device tree. Without the fix, there is issue that “binman_init
failed:-2” on i.MX8MP-EVK board.
Drop 'revision' and use malloc area in cpu_imx_plat->rev.
Marek Vasut [Tue, 15 Oct 2024 23:44:32 +0000 (01:44 +0200)]
ARM: dts: imx6-dhcom: Remove fdt_high and initrd_high env variables
Remove both "fdt_high" and "initrd_high" environment variables
in favor of "bootm_size" to safely contain a kernel, device tree
and initrd for relocation inside of 256 MiB region of DRAM.
Signed-off-by: Marek Vasut <marex@denx.de> Reviewed-by: Fabio Estevam <festevam@gmail.com>
Marek Vasut [Thu, 17 Oct 2024 01:19:17 +0000 (22:19 -0300)]
arm64: dts: imx: Switch to using upstream DT on DH i.MX8MP DHCOM PDK2/PDK3
Enable OF_UPSTREAM to use upstream DT and add freescale/ prefix to the
DEFAULT_DEVICE_TREE. And thereby directly build DTB from dts/upstream/src/
including *-u-boot.dtsi and DTBOs from arch/$(ARCH)/dts/ directory.
Reviewed-by: Sumit Garg <sumit.garg@linaro.org> Signed-off-by: Marek Vasut <marex@denx.de>
Marek Vasut [Thu, 17 Oct 2024 01:08:40 +0000 (03:08 +0200)]
dts: Add ability to build fallback DTBOs from arch/$(ARCH)/dts
Currently the enablement of OF_UPSTREAM results on the build system
searching for DTs only in dts/upstream/ . There are platforms which
use U-Boot specific DTBOs applied on top of U-Boot control DT during
SPL stage, and source DTs for these are located in arch/$(ARCH)/dtb.
Add dedicated 'dtbos' target which builds only .dtbos and not .dtbs and
in case CONFIG_OF_UPSTREAM_INCLUDE_LOCAL_FALLBACK_DTBOS is enabled, build
this target for arch/$(ARCH)/dtb to generate local U-Boot specific DTBOs.
Adjust top level Makefile so binman would search for .dtb and .dtbo in
both OF_UPSTREAM specific paths and arch/$(ARCH)/dtb for the .dtbo case
in case CONFIG_OF_UPSTREAM_INCLUDE_LOCAL_FALLBACK_DTBOS is enabled.
Reviewed-by: Sumit Garg <sumit.garg@linaro.org> Signed-off-by: Marek Vasut <marex@denx.de>
Alexander Dahl [Tue, 1 Oct 2024 12:07:33 +0000 (14:07 +0200)]
ARM: at91: clock: Add missing include of asm/io.h
In one inline function in this header `readl()` is used, but the
declaration was not found, so buildman gave this warning:
w+include/asm/arch/clk.h: In function 'get_h32mxdiv':
w+include/asm/arch/clk.h:65:16: warning: implicit declaration of function 'readl' [-Wimplicit-function-declaration]
Tom Rini [Thu, 17 Oct 2024 21:13:27 +0000 (15:13 -0600)]
Merge patch series "Cleanup dma device in spl and move dma channel[0]"
Prasanth Babu Mantena <p-mantena@ti.com> says:
The channel allocation and deallocation for dma copy was happening on every
dma transfer. This is a overhead for transactions like NAND, which does
page reads recursively for complete data.
So, moving the dma allocation to probe and implement corresponding
remove function and cleanup dma device while exiting from spl.
Enable SPL_DM_DEVICE_REMOVE, for device removal capability in SPL.
dma: ti: k3-udma: Move DMA channel[0] allocation to probe and add udma_remove()
Currently, the allocation of DMA channel[0] for memcpy is happening
in udma_transfer() for every transfer, which leads to a huge overhead
for each transfer, especially in case of nand page reads. So, move this
allocation to udma_probe(), as a result, the allocation is done once
during probe.
Introduce udma_remove() for the cleanup of allocated channel during
probe.
Signed-off-by: Santhosh Kumar K <s-k6@ti.com> Signed-off-by: Prasanth Babu Mantena <p-mantena@ti.com>
dma: ti: k3-udma: Move udma_probe() below all APIs
The udma_probe() function was placed above many important APIs
related to bcdma, pktdma, which restricts these APIs to be accessed
during probe. So, move udma_probe() below all of them.
Signed-off-by: Santhosh Kumar K <s-k6@ti.com> Signed-off-by: Prasanth Babu Mantena <p-mantena@ti.com>
While exiting from spl, remove any dma device active through
spl_board_prepare_for_boot(). This is required for cleaning up
any dma channels being used in spl and avoid issues with overlapping
channel allocation in the next stage bootloaders.
Andy Shevchenko [Sat, 5 Oct 2024 19:14:29 +0000 (22:14 +0300)]
cmd: irq: Move do_irqinfo() prototype to a header file
Move do_irqinfo() prototype to a header file, otherwise compiler is not
happy:
arch/x86/lib/interrupts.c:130:5: warning: no previous prototype for ‘do_irqinfo’ [-Wmissing-prototypes]
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Simon Glass <sjg@chromium.org>
[trini: Add 'struct cmd_tbl;' to irq_func.h] Signed-off-by: Tom Rini <trini@konsulko.com>
AM62x devices now support CPU throttling based on thermal alerts
with a Linux commit 10e7bfd8114c ("arm64: dts: ti: k3-am62: Enable
CPU freq throttling on thermal alert"). However, this functionality
does not work correctly across all variants of the AM62x SoCs
which have different numbers of Cortex-A CPU cores: AM62x1 (1 core),
AM62x2 (2 cores), and AM62x4 (4 cores). On single-core and dual-core
AM62x devices, the following error is observed in the Linux kernel:
OF: /thermal-zones/main0-thermal/cooling-maps/map0: could not find
phandle 94
OF: /thermal-zones/main1-thermal/cooling-maps/map0: could not find
phandle 94
This commit adds a fixup to dynamically adjust the cooling-device
nodes in the thermal zones based on the actual number of CPU cores
available. This resolves the issue of CPU throttling not working
correctly on single-core and dual-core AM62x devices, while
maintaining the functionality for AM62x quad-core devices.
A similar approach is implemented for example on i.MX8MM SoC.
Lad Prabhakar [Tue, 1 Oct 2024 09:56:47 +0000 (10:56 +0100)]
lib: fdtdec: Parse the gzip/lzo headers only when dependencies have met
It might happen that CONFIG_GZIP and CONFIG_LZO are enabled but we might
have CONFIG_MULTI_DTB_FIT_LZO enabled in this case in the code path of
uncompress_blob() we parse the gzip headers first which results in
`Error: Bad gzipped data` being printed. To avoid this parse the gzip/lzo
headers only when dependencies have met.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Tom Rini <trini@konsulko.com>
Jan Kiszka [Mon, 30 Sep 2024 10:20:36 +0000 (12:20 +0200)]
Extend usage for OF_OVERLAY_LIST beyond SPL
Allow to use OF_OVERLAY_LIST also for the case that the overlays just
need be built, e.g. when they will be picked up by binman as artifacts
of the final U-Boot image. The IOT2050 boards have such a need when
switching to OF_UPSTREAM.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Reviewed-by: Sumit Garg <sumit.garg@linaro.org> Reviewed-by: Simon Glass <sjg@chromium.org>
- stm32mp: fix boot issue with OP-TEE
- stm32mp: Add script to install U-Boot from SD/eMMC to SPI NOR on DH STM32MP15xx
- stm32mp: Switch to using upstream DT on DH STM32 DHSOM
- stm32mp: Generate u-boot.itb using binman on DH STM32 DHSOM
Add new section for USB TypeC Port Manager (TCPM) support, which
is needed to figure out cable orientation of USB-C plus and to do
USB PD communication.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com> Acked-by: Marek Vasut <marex@denx.de>
rockchip: rk3588-rock-5b: Add USB-C controller to u-boot.dtsi
Add USB-C controller (fusb302), which will be used by U-Boot to
initialize USB-PD. This is needed, because USB-PD communication
must happen within 5 seconds after the USB-C connector got plugged.
On my Rock 5B it often takes 5 seconds to jump to the Linux binary,
so it must happen before Linux is initialized.
This adds the DT node to the U-Boot specific file, since the Linux
kernel DT currently does not describe it to avoid a system reset.
The plan is to add it to the Linux DT with status = 'fail' and then
let U-Boot mark it as status = 'okay' if it properly dealt with
early USB-PD initialization. Until the Kernel DT has the node, let's
add it in U-Boot to get things going.
Reviewed-by: Kever Yang <kever.yang@rock-chips.com> Tested-by: Soeren Moch <smoch@web.de> Tested-by: Anand Moon <linux.amoon@gmail.com> Reviewed-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
board: rock5b-rk3588: enable USB-C in operating system
Since older U-Boot releases do not negotiate USB PD, the kernel
DT may not enable the USB-C controller by default to avoid a
regression. The plan is to upstream it with 'status = "fail";'
instead. U-Boot should then mark it as 'status = "okay";' if
it negotiated USB PD. Currently existing upstream kernel DTs do
not yet have the USB-C controller at all, so we ignore any
failures.
Reviewed-by: Kever Yang <kever.yang@rock-chips.com> Tested-by: Soeren Moch <smoch@web.de> Tested-by: Anand Moon <linux.amoon@gmail.com> Reviewed-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Now that the TCPM framework exists we can introduce fusb302
driver using it. This chip is a very common USB-C controller
chip with PD support, which can be found in the Radxa Rock 5B
among many other boards. Apart from Power Delivery, it also
handles detection of the cable orientation. That can be used
to control a mux for connecting the right USB3 lane pair to
the USB3 controller.
The driver is originally from the Linux kernel, but has been
adapted to the requirements of U-Boot and its TCPM framework.
Co-developed-by: Wang Jie <dave.wang@rock-chips.com> Signed-off-by: Wang Jie <dave.wang@rock-chips.com> Tested-by: Soeren Moch <smoch@web.de> Tested-by: Anand Moon <linux.amoon@gmail.com> Reviewed-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This adds TCPM framework in preparation for fusb302 support, which can
handle USB power delivery messages. This is needed to solve issues with
devices, that are running from a USB-C port supporting USB-PD, but not
having a battery.
Such a device currently boots to the kernel without interacting with
the power-supply at all. If there are no USB-PD message replies within
5 seconds, the power-supply assumes the peripheral is not capable of
USB-PD. It usually takes more than 5 seconds for the system to reach
the kernel and probe the I2C based fusb302 chip driver. Thus the
system always runs into this state. The power-supply's solution to
fix this error state is a hard reset, which involves removing the
power from VBUS. Boards without a battery (or huge capacitors) will
reset at this point resulting in a boot loop.
This imports the TCPM framework from the kernel. The porting has
originally been done by Rockchip using hardware timers and the Linux
kernel's TCPM code from some years ago.
I had a look at upgrading to the latest TCPM kernel code, but that
beast became a lot more complex due to adding more USB-C features.
I believe these features are not needed in U-Boot and with multiple
kthreads and hrtimers being involved it is non-trivial to port them.
Instead I worked on stripping down features from the Rockchip port
to an even more basic level. Also the TCPM code has been reworked
to avoid complete use of any timers (Rockchip used SoC specific
hardware timers + IRQ to implement delayed work mechanism). Instead
the delayed state changes are handled directly from the poll loop.
Note, that (in contrast to the original Rockchip port) the state
machine has the same hard reset quirk, that the kernel has - i.e.
it avoids disabling the CC pin resistors for devices that are not
self-powered. Without that quirk, the Radxa Rock 5B will not just
end up doing a machine reset when a hard reset is triggered, but will
not even recover, because the CPU will loose power and the FUSB302
will keep this state because of leak voltage arriving through the RX
serial pin (assuming a serial adapter is connected).
This also includes a 'tcpm' command, which can be used to get
information about the current state and the negotiated voltage
and current.
Co-developed-by: Wang Jie <dave.wang@rock-chips.com> Signed-off-by: Wang Jie <dave.wang@rock-chips.com> Tested-by: Soeren Moch <smoch@web.de> Tested-by: Anand Moon <linux.amoon@gmail.com> Reviewed-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
serial: embed the rx buffer in struct serial_dev_priv
The initialization of upriv->buf doesn't check for a NULL return. But
there's actually no point in doing a separate, unconditional malloc()
in post_probe; we can just make serial_dev_priv contain the rx buffer
itself, and let the (larger) allocation be handled by the driver core
when it allocates the ->per_device_auto. The total run-time memory
used is mostly the same, we reduce the code size a little, and as a
bonus, struct serial_dev_priv does not contain the unused members when
!SERIAL_RX_BUFFER.
Signed-off-by: Rasmus Villemoes <ravi@prevas.dk> Reviewed-by: Simon Glass <sjg@chromium.org>
serial: add build-time sanity check of CONFIG_SERIAL_RX_BUFFER_SIZE
The help text says it must be a power of 2, and the implementation
does rely on that. Enforce it.
A violation gives a wall of text, but the last few lines should be
reasonably obvious:
drivers/serial/serial-uclass.c:334:9: note: in expansion of macro ‘BUILD_BUG_ON_NOT_POWER_OF_2’
334 | BUILD_BUG_ON_NOT_POWER_OF_2(CONFIG_SERIAL_RX_BUFFER_SIZE);
Signed-off-by: Rasmus Villemoes <ravi@prevas.dk> Reviewed-by: Simon Glass <sjg@chromium.org>
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