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* nvmem: bsec: add support for STM32 bsec pseudo TAAhmad Fatoum2023-12-051-0/+1
| | | | | | | | | | | While OP-TEE on STM32MP15 still implements the old SMC based API to access the OTP, on STM32MP13, communication with the pseudo TA is mandatory. Therefore add a driver that probes for OP-TEE and talks to it to read and write the OTP. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20231127064034.2206788-4-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* nvmem: Add support for i.MX ELE ocotpSascha Hauer2023-11-201-0/+1
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* nvmem: Add Rockchip OTP controller driverAlexander Shiyan2023-10-061-0/+1
| | | | | | | | | This adds a simple driver to dump specified values of Rockchip SoC from otp, such as cpu-leakage, id etc. Signed-off-by: Alexander Shiyan <eagle.alexander923@gmail.com> Link: https://lore.barebox.org/20231006054812.4343-1-eagle.alexander923@gmail.com Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* nvmem: add kvx otp non volatile regbank supportClement Leger2022-01-181-0/+3
| | | | | | | | | Backport Linux driver to barebox to access nvmem. Signed-off-by: Clement Leger <clement.leger@bootlin.com> Signed-off-by: Jules Maselbas <jmaselbas@kalray.eu> Link: https://lore.barebox.org/20220117221917.26970-9-jmaselbas@kalray.eu Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* drivers: migrate "GPL-2.0" license identifiers to SPDX 2.0Roland Hieber2021-11-221-1/+1
| | | | | | | | | | "GPL-2.0-only" was introduced in SPDX 2.0, and the old identifier "GPL-2.0" is now considered deprecated; see <https://spdx.org/licenses>. Fixes: 28f4a6a4df76f0f1581d (2021-10-30, "drivers: add missing SPDX-License-Identifier") Signed-off-by: Roland Hieber <rhi@pengutronix.de> Link: https://lore.barebox.org/20211117113851.2022669-2-rhi@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* drivers: add missing SPDX-License-IdentifierAhmad Fatoum2021-11-011-0/+1
| | | | | | | | | | | | | | | | | | | | This adds the suitable SPDX-License-Identifier to all files in drivers/ that previously lacked one. To aid manual inspection, following heuristics can be used: * No changes outside of comments/whitespace: git show -U0 HEAD | rg -v '^(@@|diff|index)|[-+]([-+]|//|#|[\s/]\*)' * -or-later come in pairs: git show --inter-hunk-context=19 HEAD | \ perl -0777 -F'/^@/gm' -ne 'for (@F) { @m = /later/g; print if @m & 1 }' Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20211030175632.2276077-4-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/riscv'Sascha Hauer2021-07-181-0/+2
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| * nvmem: add StarFive OTP supportAhmad Fatoum2021-06-241-0/+2
| | | | | | | | | | | | | | | | | | The OTP holds the ethernet MAC address. Add a driver, so barebox can read it out. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20210619045055.779-9-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | nvmem: add support for nvmem-cells bindingAhmad Fatoum2021-06-211-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Recently, nvmem cell and MTD partition bindings were made to coexist: Partitions can now be compatible = "nvmem-cells"; which registers a NVMEM provider and interprets its child nodes as cells. Teach barebox about this. This allows fetching NVMEM cells from MTD partitions and hostfiles. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20210619034516.6737-5-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | nvmem: add support for new read-only memory (rmem) bindingAhmad Fatoum2021-06-211-0/+2
|/ | | | | | | | | | | | | Only upstream user of this binding is the raspberry pi 4 DT, where it's used to pass along bootloader-provided info to Linux. We have instances in barebox, where a previous stage bootloader passes along a memory region with info for barebox to interpret. This could in future be modelled as nvmem-rmem nodes. The binding is also quite handy for debugging. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20210619034516.6737-4-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* nvmem: add nvmem_regmap_register helperAhmad Fatoum2021-06-021-1/+1
| | | | | | | | | | | | | | | | Registering a nvmem device for a regmap involves some boilerplate that doesn't need to change from driver to driver: - Reads are made aligned, to support normal use with md - Writes are passed along as is - nvmem parameters can be extracted from regmap Instead of having to replicate this driver by driver, add one helper to make this adaptation easier. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20210531072406.5630-5-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* nvmem: add read support for STM32MP1 bsec OTPAhmad Fatoum2019-11-061-1/+4
| | | | | | | | | The bsec on the STM32MP157C provides a 380 byte OTP. Add initial support for reading and writing the shadow copy of the fuses. Direct fuse access is not yet supported. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* nvmem: Port Linux driver for Microwire 93XX46 EEPROM chipsAndrey Smirnov2018-11-061-1/+4
| | | | | Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* nvmem: Port RAVE SP EEPROM driver from Linux kernelAndrey Smirnov2018-06-211-1/+4
| | | | | | | | | This is a minimal port of a kernel commit 3b51f47be171 ("nvmem: Add RAVE SP EEPROM driver"). All of the changes were kept to a minimum and limited to impedance matching between Barebox/Linux driver API. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* i.MX: ocotp: Move OCOTP driver to drivers/nvmemAndrey Smirnov2018-05-311-0/+3
| | | | | | | | | | Move OCOTP driver to drivers/nvmem to be consistent with Linux kerenel. Cc: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Tested-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* nvmem: add snvs_lpgpr for freescale imx6Steffen Trumtrar2017-03-301-0/+4
| | | | | | | | | SNVS LPGPR is Non Volatile Low Power Generic Purpose Register which can be used as part of nvmem framework. Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de> Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* drivers: add nvmem framework from kernelSteffen Trumtrar2017-03-301-0/+6
Add the nvmem framework from Linux. Based on the v4.4-rc3 version. Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de> Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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