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 <sean.anderson@seco.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
The value CONFIG_DB_784MP_GP is only used in the DDR code to refer to
CONFIG_TARGET_DB_MV784MP_GP so just use that second value directly.
Cc: Stefan Roese <sr@denx.de>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Stefan Roese <sr@denx.de>
This converts the following to Kconfig:
CONFIG_LPUART
CONFIG_LPUART_32B_REG
And note that CONFIG_LPUART_32B_REG is unused in code.
Signed-off-by: Tom Rini <trini@konsulko.com>
This converts the following to Kconfig:
CONFIG_MCFRTC
CONFIG_SYS_MCFRTC_BASE
While at it, remove '#undef RTC_DEBUG' from these config files.
Signed-off-by: Tom Rini <trini@konsulko.com>
Most callers of this function do not check the return value, and it is
unclear what action they should take if it fails. If a function is freeing
multiple clocks, it should not stop just because the first one failed.
Since the callbacks can no longer fail, just convert the return type to
void.
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Link: https://lore.kernel.org/r/20220115222504.617013-8-seanga2@gmail.com
When freeing a clock there is not much we can do if there is an error, and
most callers do not actually check the return value. Even e.g. checking to
make sure that clk->id is valid should have been done in request() in the
first place (unless someone is messing with the driver behind our back).
Just return void and don't bother returning an error.
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Link: https://lore.kernel.org/r/20220115222504.617013-2-seanga2@gmail.com
This converts the following to Kconfig:
CONFIG_VIDEO_BCM2835
This is the final ad-hoc CONFIG_VIDEO_... to convert.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Matthias Brugger <mbrugger@suse.com>
This does not use driver model and is more than two years past the
migration date. Drop it.
It can be added back later if needed.
Signed-off-by: Simon Glass <sjg@chromium.org>
This does not use driver model and is more than two years past the
migration date. Drop it.
It can be added back later if needed.
Signed-off-by: Simon Glass <sjg@chromium.org>
Drop the Kconfigs which are not used and all references to them. In
particular, this drops CONFIG_VIDEO to avoid confusion and allow us to
eventually rename CONFIG_DM_VIDEO to CONFIG_VIDEO.
Also drop the prototype for video_get_info_str() which is no-longer used.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Jason Liu <jason.hui.liu@nxp.com>
Unfortunately this driver uses the old video structure to store things.
This is not supported with driver model.
Drop the old code and comment out the other pieces, so the maintainer can
take a look.
Signed-off-by: Simon Glass <sjg@chromium.org>
The non-driver model video support was removed two years ago. Drop this
driver, which is only used by nokia_rx51.
Signed-off-by: Simon Glass <sjg@chromium.org>
Previous u-boot code changed the default bch setting behavior and caused
backward compatible issue. This fix choose the legacy bch geometry back
again as the default option. If the minimum ecc strength that NAND chips
required need to be chosen, it can be enabled by either adding DT flag
"fsl,use-minimum-ecc" or CONFIG_NAND_MXS_USE_MINIMUM_ECC in configs. The
unused flag "fsl,legacy-bch-geometry" get removed.
Fixes: 51cdf83eea (mtd: gpmi: provide the option to use legacy bch geometry)
Fixes: 616f03daba (mtd: gpmi: change the BCH layout setting for large oob NAND)
Tested-by: Tim Harvey <tharvey@gateworks.com>
Tested-by: Sean Nyekjaer <sean@geanix.com>
Signed-off-by: Han Xu <han.xu@nxp.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Use the MEMA - MEMD registers on the PFUZE100 as bootcount
registers.
Based on work from Heiko Schocher <hs@denx.de>.
Signed-off-by: Philip Oberfichtner <pro@denx.de>
This patch add the support of PWM controller which can be found at aspeed
ast2600 soc. The pwm supoorts up to 16 channels and it's part function
of multi-function device "pwm-tach controller".
Signed-off-by: Billy Tsai <billy_tsai@aspeedtech.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Chia-Wei Wang <chiawei_wang@aspeedtech.com>
Add following two new PCI class codes defines into pci_ids.h include file:
PCI_CLASS_BRIDGE_PCI_NORMAL
PCI_CLASS_BRIDGE_PCI_SUBTRACTIVE
And use these defines in all U-Boot code for describing PCI class codes for
normal and subtractive PCI bridges.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
This converts the following to Kconfig:
CONFIG_LCD_INFO
CONFIG_LCD_LOGO
CONFIG_LCD_INFO_BELOW_LOGO
CONFIG_LCD_IN_PSRAM
Cc: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Tom Rini <trini@konsulko.com>
This converts the following to Kconfig:
CONFIG_ATMEL_LCD
CONFIG_ATMEL_LCD_BGR555
CONFIG_ATMEL_LCD_RGB565
CONFIG_GURNARD_SPLASH
Signed-off-by: Tom Rini <trini@konsulko.com>
This patch replaces use fdtdec_get_addr with simpler dev_read_addr().
fdtdec_get_addr doesn't work properly on ZynqMP-based (64bit) system. Although
not confirmed, it could be related to the fact, that quoting the documentation,
"This variant hard-codes the number of cells used to represent the address and
size based on sizeof(fdt_addr_t) and sizeof(fdt_size_t)".
Signed-off-by: Adrian Fiergolski <adrian.fiergolski@fastree3d.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
Once request is sent, and before receiving a response, the delay is required.
This patch fixes missing delay for before first response try.
Signed-off-by: Adrian Fiergolski <adrian.fiergolski@fastree3d.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
There is seldom a need to refresh at 100Hz and it uses a lot of CPU.
Reduce the rate to 10Hz which seems to be adequate.
Signed-off-by: Simon Glass <sjg@chromium.org>
Some files cannot be written but read-only access is still useful for
tests. Add a fallback to read-only access when needed.
This is useful in CI when opening a large data file provided by docker,
where read/write access would result in copying the file, thus needing
a lot of extra disk space.
Signed-off-by: Simon Glass <sjg@chromium.org>
With all boards now using DM_ETH we determine the value for
CONFIG_FEC_XCV_TYPE at run time, except in the case of the default
fall-back. Set the fallback directly now.
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Ramon Fried <rfried.dev@gmail.com>
Cc: Stefano Babic <sbabic@denx.de>
Signed-off-by: Tom Rini <trini@konsulko.com>
