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Register with firmware upload API to allow updating firmware on cc1352p7
without resorting to overlay for using the userspace flasher.
Communication with the bootloader can be moved out of gb-beagleplay
driver if required, but I am keeping it here since there are no
immediate plans to use the on-board cc1352p7 for anything other than
greybus (BeagleConnect Technology). Additionally, there do not seem to
any other devices using cc1352p7 or it's cousins as a co-processor.
Boot and Reset GPIOs are used to enable cc1352p7 bootloader backdoor for
flashing. The delays while starting bootloader are taken from the
userspace flasher since the technical specification does not provide
sufficient information regarding it.
Flashing is skipped in case we are trying to flash the same
image as the one that is currently present. This is determined by CRC32
calculation of the supplied firmware and Flash data.
We also do a CRC32 check after flashing to ensure that the firmware was
flashed properly.
Firmware size should be 704 KB.
Link: https://www.ti.com/lit/ug/swcu192/swcu192.pdf Ti CC1352p7 Tecnical Specification
Link: https://openbeagle.org/beagleconnect/cc1352-flasher Userspace
Flasher
Signed-off-by: Ayush Singh <ayush@beagleboard.org>
Link: https://lore.kernel.org/r/20240903-beagleplay_fw_upgrade-v4-3-526fc62204a7@beagleboard.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The gb-beagleplay driver uses crc_ccitt(), so it should select
CRC_CCITT to make sure that the function is available.
Fixes these build errors:
s390-linux-ld: drivers/greybus/gb-beagleplay.o: in function `hdlc_append_tx_u8':
gb-beagleplay.c:(.text+0x2c0): undefined reference to `crc_ccitt'
s390-linux-ld: drivers/greybus/gb-beagleplay.o: in function `hdlc_rx_frame':
gb-beagleplay.c:(.text+0x6a0): undefined reference to `crc_ccitt'
Fixes: ec558bbfea67 ("greybus: Add BeaglePlay Linux Driver")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Ayush Singh <ayushdevel1325@gmail.com>
Cc: Johan Hovold <johan@kernel.org>
Cc: Alex Elder <elder@kernel.org>
Cc: greybus-dev@lists.linaro.org
Link: https://lore.kernel.org/r/20231031040909.21201-1-rdunlap@infradead.org
Reviewed-by: Ayush Singh <ayushdevel1325@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add the Greybus host driver for BeaglePlay board by BeagleBoard.org.
The current greybus setup involves running SVC in a user-space
application (GBridge) and using netlink to communicate with kernel
space. GBridge itself uses wpanusb kernel driver, so the greybus messages
travel from kernel space (gb_netlink) to user-space (GBridge) and then
back to kernel space (wpanusb) before reaching CC1352.
This driver directly communicates with CC1352 (running SVC Zephyr
application). Thus, it simplifies the complete greybus setup eliminating
user-space GBridge.
This driver is responsible for the following:
- Start SVC (CC1352) on driver load.
- Send/Receive Greybus messages to/from CC1352 using HDLC over UART.
- Print Logs from CC1352.
- Stop SVC (CC1352) on driver load.
Signed-off-by: Ayush Singh <ayushdevel1325@gmail.com>
Link: https://lore.kernel.org/r/20231017101116.178041-3-ayushdevel1325@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Since commit 84af7a6194e4 ("checkpatch: kconfig: prefer 'help' over
'---help---'"), the number of '---help---' has been gradually
decreasing, but there are still more than 2400 instances.
This commit finishes the conversion. While I touched the lines,
I also fixed the indentation.
There are a variety of indentation styles found.
a) 4 spaces + '---help---'
b) 7 spaces + '---help---'
c) 8 spaces + '---help---'
d) 1 space + 1 tab + '---help---'
e) 1 tab + '---help---' (correct indentation)
f) 1 tab + 1 space + '---help---'
g) 1 tab + 2 spaces + '---help---'
In order to convert all of them to 1 tab + 'help', I ran the
following commend:
$ find . -name 'Kconfig*' | xargs sed -i 's/^[[:space:]]*---help---/\thelp/'
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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Fix typos ("an" -> "a", "chose" -> "choose") in Kconfig
Signed-off-by: Zenyu Sy <zenyu@tuta.io>
Link: https://lore.kernel.org/r/20200426060048.14019-1-zenyu@tuta.io
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The es2 Greybus host controller has long been stable, so move it out of
drivers/staging/ to drivers/greybus/
Cc: Johan Hovold <johan@kernel.org>
Cc: greybus-dev@lists.linaro.org
Cc: linux-kernel@vger.kernel.org
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Alex Elder <elder@kernel.org>
Link: https://lore.kernel.org/r/20190825055429.18547-10-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The Greybus core code has been stable for a long time, and has been
shipping for many years in millions of phones. With the advent of a
recent Google Summer of Code project, and a number of new devices in the
works from various companies, it is time to get the core greybus code
out of staging as it really is going to be with us for a while.
Cc: Johan Hovold <johan@kernel.org>
Cc: linux-kernel@vger.kernel.org
Cc: greybus-dev@lists.linaro.org
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Alex Elder <elder@kernel.org>
Link: https://lore.kernel.org/r/20190825055429.18547-9-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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