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path: root/drivers/misc/mxc_ocotp.c
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2024-05-20Restore patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"Tom Rini
As part of bringing the master branch back in to next, we need to allow for all of these changes to exist here. Reported-by: Jonas Karlman <[email protected]> Signed-off-by: Tom Rini <[email protected]>
2024-05-19Revert "Merge patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet""Tom Rini
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35. Reported-by: Jonas Karlman <[email protected]> Signed-off-by: Tom Rini <[email protected]>
2024-05-07misc: Remove <common.h> and add needed includesTom Rini
Remove <common.h> from this driver directory and when needed add missing include files directly. Signed-off-by: Tom Rini <[email protected]>
2022-03-28Fix URLs to old freescale git reposPali Rohár
Freescale git repos are now on source.codeaurora.org. Signed-off-by: Pali Rohár <[email protected]>
2021-04-08misc: ocotp: Update OCOTP driver for iMX8MQ B2Ye Li
i.MX8MQ B2 also has fixed value in OCOTP_READ_FUSE_DATA register, so it does not support "fuse sense" command like B1. Signed-off-by: Ye Li <[email protected]> Reviewed-by: Peng Fan <[email protected]> Signed-off-by: Peng Fan <[email protected]>
2020-05-18common: Drop linux/delay.h from common headerSimon Glass
Move this uncommon header out of the common header. Signed-off-by: Simon Glass <[email protected]>
2020-01-08mxc_ocotp: support i.MX8MPPeng Fan
i.MX8MP use similar ocotp as i.MX8MN, but has changed fuse banks and ctrl register bit definitions, so update to reflect that. Reviewed-by: Ye Li <[email protected]> Signed-off-by: Peng Fan <[email protected]>
2019-04-25mxc_ocotp: Disable fuse sense for imx8mq B1Ye Li
On iMX8MQ Rev B1, reading from fuse box is not allowed. The OCOTP_READ_FUSE_DATA register is tied to magic number 0xff0055aa for chip rev. So u-boot has to disable the fuse sense function for it. Signed-off-by: Ye Li <[email protected]> Tested-by: Anson Huang <[email protected]> Signed-off-by: Peng Fan <[email protected]>
2019-04-25mxc_ocotp: Update redundancy banks for mx7ulp B0Ye Li
On mx7ulp B0, beside bank 0 and 1, the fuse bank 9, 10, 28 are changed to Redundancy mode not ECC, so they can support to program different bits of a word in multiple times. Signed-off-by: Ye Li <[email protected]> Signed-off-by: Peng Fan <[email protected]>
2019-01-01imx: rename mx8m,MX8M to imx8m,IMX8MPeng Fan
Rename mx8m,MX8M to imx8m,IMX8M Signed-off-by: Peng Fan <[email protected]> Signed-off-by: Jon Nettleton <[email protected]>
2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <[email protected]>
2018-02-04misc: ocotp: add i.MX8M supportPeng Fan
i.MX8M OCOTP follow same flow as i.MX6Q, but it has 64 banks and each bank 4 words. Signed-off-by: Peng Fan <[email protected]> Reviewed-by: Stefano Babic <[email protected]> Reviewed-by: Fabio Estevam <[email protected]>
2018-01-12misc: mxc_ocotp: check fuse word before programming on i.MX7ULPPeng Fan
On i.MX7ULP, the fuse words (except bank 0 and 1) only supports to write once, because they use ECC mode. Multiple writes may damage the ECC value and cause a wrong fuse value decoded when reading. This patch adds a checking before the fuse word programming, only can write when the word value is 0. Signed-off-by: Ye Li <[email protected]> Signed-off-by: Peng Fan <[email protected]>
2017-07-12imx: reorganize IMX code as other SOCsStefano Babic
Change is consistent with other SOCs and it is in preparation for adding SOMs. SOC's related files are moved from cpu/ to mach-imx/<SOC>. This change is also coherent with the structure in kernel. Signed-off-by: Stefano Babic <[email protected]> CC: Fabio Estevam <[email protected]> CC: Akshay Bhat <[email protected]> CC: Ken Lin <[email protected]> CC: Marek Vasut <[email protected]> CC: Heiko Schocher <[email protected]> CC: "Sébastien Szymanski" <[email protected]> CC: Christian Gmeiner <[email protected]> CC: Stefan Roese <[email protected]> CC: Patrick Bruenn <[email protected]> CC: Troy Kisky <[email protected]> CC: Nikita Kiryanov <[email protected]> CC: Otavio Salvador <[email protected]> CC: "Eric Bénard" <[email protected]> CC: Jagan Teki <[email protected]> CC: Ye Li <[email protected]> CC: Peng Fan <[email protected]> CC: Adrian Alonso <[email protected]> CC: Alison Wang <[email protected]> CC: Tim Harvey <[email protected]> CC: Martin Donnelly <[email protected]> CC: Marcin Niestroj <[email protected]> CC: Lukasz Majewski <[email protected]> CC: Adam Ford <[email protected]> CC: "Albert ARIBAUD (3ADEV)" <[email protected]> CC: Boris Brezillon <[email protected]> CC: Soeren Moch <[email protected]> CC: Richard Hu <[email protected]> CC: Wig Cheng <[email protected]> CC: Vanessa Maegima <[email protected]> CC: Max Krummenacher <[email protected]> CC: Stefan Agner <[email protected]> CC: Markus Niebel <[email protected]> CC: Breno Lima <[email protected]> CC: Francesco Montefoschi <[email protected]> CC: Jaehoon Chung <[email protected]> CC: Scott Wood <[email protected]> CC: Joe Hershberger <[email protected]> CC: Anatolij Gustschin <[email protected]> CC: Simon Glass <[email protected]> CC: "Andrew F. Davis" <[email protected]> CC: "Łukasz Majewski" <[email protected]> CC: Patrice Chotard <[email protected]> CC: Nobuhiro Iwamatsu <[email protected]> CC: Hans de Goede <[email protected]> CC: Masahiro Yamada <[email protected]> CC: Stephen Warren <[email protected]> CC: Andre Przywara <[email protected]> CC: "Álvaro Fernández Rojas" <[email protected]> CC: York Sun <[email protected]> CC: Xiaoliang Yang <[email protected]> CC: Chen-Yu Tsai <[email protected]> CC: George McCollister <[email protected]> CC: Sven Ebenfeld <[email protected]> CC: Filip Brozovic <[email protected]> CC: Petr Kulhavy <[email protected]> CC: Eric Nelson <[email protected]> CC: Bai Ping <[email protected]> CC: Anson Huang <[email protected]> CC: Sanchayan Maity <[email protected]> CC: Lokesh Vutla <[email protected]> CC: Patrick Delaunay <[email protected]> CC: Gary Bisson <[email protected]> CC: Alexander Graf <[email protected]> CC: [email protected] Reviewed-by: Fabio Estevam <[email protected]> Reviewed-by: Christian Gmeiner <[email protected]>
2017-03-17mxc_ocotp: Update driver to support OCOTP controller on i.MX7ULPPeng Fan
Update the mxc_ocotp driver to support i.MX7ULP. The read/write sequence has some changes due to PDN and OUT_STATUS registers added and TIME register is removed. Also update the bank size and number. Add is_mx7ulp macro in sys_proto.h Signed-off-by: Peng Fan <[email protected]> Signed-off-by: Ye Li <[email protected]> Reviewed-by : Stefano Babic <[email protected]>
2016-12-16OCOTP: Update OCOTP driver to support i.MX6SLLPeng Fan
Add the i.MX6SLL support to OCOTP driver. The i.MX6SLL reuses the i.MX6ULL fuse, bank 7 and bank8 have 4 words each, and there is a hole between bank 5 and bank 6. Signed-off-by: Ye Li <[email protected]> Signed-off-by: Peng Fan <[email protected]>
2016-10-04imx: ocotp: support i.MX6ULLPeng Fan
i.MX6ULL has two 128 bits fuse banks, bank 7 and bank 8, while other banks use 256 bits. So we have to adjust the word and bank index when accessing the bank 8. When in command line `fuse read 8 0 1`, you can image `fuse read 7 4 1` in the ocotp driver implementation for 6ULL. When programming, we use word index, so need to fix bank7/8 programming for i.mx6ull. For example: fuse prog 8 3 1; The word index is (8 << 3 | 3) --> 67. But actully it should be (7 << 3 | 7) ---> 63. So fix it. Signed-off-by: Peng Fan <[email protected]> Cc: Stefano Babic <[email protected]>
2016-09-23treewide: replace #include <asm/errno.h> with <linux/errno.h>Masahiro Yamada
Now, arch/${ARCH}/include/asm/errno.h and include/linux/errno.h have the same content. (both just wrap <asm-generic/errno.h>) Replace all include directives for <asm/errno.h> with <linux/errno.h>. Signed-off-by: Masahiro Yamada <[email protected]> [trini: Fixup include/clk.] Signed-off-by: Tom Rini <[email protected]>
2016-05-24ocotp: mxc: use simpler runtime cpu dection macrosPeng Fan
Use simpler runtime cpu dection macros. Signed-off-by: Peng Fan <[email protected]> Cc: Stefano Babic <[email protected]>
2015-09-02mxc: ocotp fix hole in shadow registersPeng Fan
There is a hole in shadow registers address map of size 0x100 between bank 5 and bank 6 on iMX6QP, iMX6DQ, iMX6SDL, iMX6SX and iMX6UL. Bank 5 ends at 0x6F0 and Bank 6 starts at 0x800. When reading the fuses, we should account for this hole in address space. Similar hole exists between bank 14 and bank 15 of size 0x80 on iMX6QP, iMX6DQ, iMX6SDL and iMX6SX. Note: iMX6SL has only 0-7 banks and there is no hole. Note: iMX6UL doesn't have this one. When reading, we use register offset, so need to account for holes to get the correct address. When writing, we use bank/word index, there is no need to account for holes, always use bank/word index from fuse map. Signed-off-by: Peng Fan <[email protected]> Cc: Stefano Babic <[email protected]> Cc: Fabio Estevam <[email protected]>
2015-09-02imx: ocotp: mxc add i.MX7D supportAdrian Alonso
* Ocotp of i.MX7D has different operation rule. This patch is to add support for i.MX7D ocotp. Signed-off-by: Adrian Alonso <[email protected]> Signed-off-by: Peng Fan <[email protected]> Signed-off-by: Ye.Li <[email protected]>
2014-12-01mxc_ocotp: Do not disable the OCOTP clock after every accessFabio Estevam
Leave the OCOTP turned on, so that we subsequent access do not fail. After enabling the thermal driver on a mx6sxsabresd board: U-Boot 2015.01-rc1-18267-g99d4189-dirty (Nov 24 2014 - 12:59:01) CPU: Freescale i.MX6SX rev1.0 at 792 MHz CPU: Temperature 48 C Reset cause: POR Board: MX6SX SABRE SDB I2C: ready DRAM: 1 GiB PMIC: PFUZE100 ID=0x10 MMC: FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2 00:01.0 - 16c3:abcd - Bridge device 01:00.0 - 8086:08b1 - Network controller In: serial Out: serial Err: serial Net: (hang) As the thermal driver accesses the ocotp registers, its clock will be disabled afterwards. Then when the MAC address is read (also from ocotp registers) it will cause a hang. Do not disable the ocotp clock to prevent this problem. Signed-off-by: Fabio Estevam <[email protected]> Reviewed-by: Benoît Thébaudeau <[email protected]>
2014-11-20replace DIV_ROUND with DIV_ROUND_CLOSESTMasahiro Yamada
The Linux-compatible macro DIV_ROUND_CLOSEST is a bit more flexible and safer than DIV_ROUND. For example, foo = DIV_ROUND_CLOSEST(x, y++) works expectedly, but foo = DIV_ROUND(x, y++) does not. (y is incremented twice.) Signed-off-by: Masahiro Yamada <[email protected]>
2013-07-24Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk
Signed-off-by: Wolfgang Denk <[email protected]> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <[email protected]>
2013-04-28Add mxc_ocotp driverBenoît Thébaudeau
Add an mxc_ocotp driver for i.MX6. Signed-off-by: Benoît Thébaudeau <[email protected]>