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path: root/drivers/misc/atsha204a-i2c.c
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* misc: atsha204a: Add support for atsha204 chipPali Rohár2022-05-101-0/+1
| | | | | | | | | | | atsha204 chip is predecessor of atsha204a chip. Current U-Boot driver atsha204a-i2c.c can use both atsha204 and atsha204a chips because it does not call specific functions to just one of these chips. So just add compatible string for atsha204. Signed-off-by: Pali Rohár <pali@kernel.org> Reviewed-by: Heiko Schocher <hs@denx.de>
* misc: atsha204a: Remove duplicate CRC-16 implementationPali Rohár2022-04-211-119/+3
| | | | | | | | | | | | | ATSHA204A uses bit-reversed checksum of standard CRC-16 with polynomial x^16 + x^15 + x^2 + 1. This ATSHA204A specific checksum can be calculated just by using common U-Boot functions bitrev16() and crc16(). So replace custom driver CRC-16 implementation by common U-Boot functions. Signed-off-by: Pali Rohár <pali@kernel.org> Reviewed-by: Stefan Roese <sr@denx.de>
* misc: atsha204a: Fix big endian supportPali Rohár2022-04-141-1/+1
| | | | | | | | | Callers of function atsha204a_crc16() expect to return value in host cpu endianity. So remove cpu_to_le16() conversion. Signed-off-by: Pali Rohár <pali@kernel.org> Reviewed-by: Stefan Roese <sr@denx.de> Reviewed-by: Marek Behún <marek.behun@nic.cz>
* misc: atsha204a: fix i2c address readout from DTSAdrian Fiergolski2022-03-231-1/+1
| | | | | | | | | | | 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>
* misc: atsha204a: add delay after sending the messageAdrian Fiergolski2022-03-231-1/+1
| | | | | | | | 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>
* misc: atsha204a: return timeout from wakeup functionAdrian Fiergolski2022-03-231-2/+2
| | | | | | | If the maximum number of wake-up attempts is exceeded, return -ETIMEDOUT. Signed-off-by: Adrian Fiergolski <adrian.fiergolski@fastree3d.com> Reviewed-by: Marek Behún <marek.behun@nic.cz>
* WS cleanup: remove SPACE(s) followed by TABWIP/2021-09-30-whitespace-cleanupsWolfgang Denk2021-09-301-15/+15
| | | | Signed-off-by: Wolfgang Denk <wd@denx.de>
* WS cleanup: remove trailing white spaceWolfgang Denk2021-09-301-1/+1
| | | | | Signed-off-by: Wolfgang Denk <wd@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
* common: Drop asm/global_data.h from common headerSimon Glass2021-02-021-0/+1
| | | | | | | | | | | | Move this out of the common header and include it only where needed. In a number of cases this requires adding "struct udevice;" to avoid adding another large header or in other cases replacing / adding missing header files that had been pulled in, very indirectly. Finally, we have a few cases where we did not need to include <asm/global_data.h> at all, so remove that include. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com>
* dm: treewide: Rename ofdata_to_platdata() to of_to_plat()Simon Glass2020-12-131-2/+2
| | | | | | | This name is far too long. Rename it to remove the 'data' bits. This makes it consistent with the platdata->plat rename. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: treewide: Rename auto_alloc_size members to be shorterSimon Glass2020-12-131-1/+1
| | | | | | | | | | | | This construct is quite long-winded. In earlier days it made some sense since auto-allocation was a strange concept. But with driver model now used pretty universally, we can shorten this to 'auto'. This reduces verbosity and makes it easier to read. Coincidentally it also ensures that every declaration is on one line, thus making dtoc's job easier. Signed-off-by: Simon Glass <sjg@chromium.org>
* common: Drop linux/delay.h from common headerSimon Glass2020-05-181-0/+1
| | | | | | Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
* common: Drop log.h from common headerSimon Glass2020-05-181-0/+1
| | | | | | Move this header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
* crc32: Use the crc.h header for crc functionsSimon Glass2019-12-021-0/+1
| | | | | | | | | | | Drop inclusion of crc.h in common.h and use the correct header directly instead. With this we can drop the conflicting definition in fw_env.h and rely on the crc.h header, which is already included. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
* drivers/misc: Add basic support for ATSHA204A Crypto moduleMarek Behún2017-07-121-0/+408
This module can be found on the Turris Omnia board connected via the I2C interface. Among some cryptographic functions, the chip has a 512 bit One Time Programmable memory, 88 byte configuration memory and 512 byte general purpose memory. The Turris Omnia stores serial number and device MAC address in the OTP memory. This commit adds basic support for reading the EEPROM and also exposes the chips Random Number Generator. The driver is based on code by Josh Datko, Cryptotronix, jbd@cryptotronix.com and also Tomas Hlavacek, CZ.NIC, tomas.hlavacek@nic.cz Signed-off-by: Tomas Hlavacek <tomas.hlavacek@nic.cz> Signed-off-by: Marek Behun <marek.behun@nic.cz> create mode 100644 drivers/misc/atsha204a-i2c.c create mode 100644 include/atsha204a-i2c.h Signed-off-by: Stefan Roese <sr@denx.de>
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