From: Lukas Funke <lukas.fu...@weidmueller.com>
This series adds a driver to read and write ZynqMP eFuses [1]. The driver can be accessed by the 'efuse_read' and 'efuse_write' subcommands of the 'zynqmp' command. Example: => zynqmp efuse_read 0xc 0xc 00000000: 85 66 b1 32 43 f2 4a 02 00 00 00 40 .f.<D.:....@ Note: Accessing eFuses requires eFuse access to be enabled in the underlying PMU firmware. Use cases are: - Reading/writing user specific eFuses to enable device specific implementations - Revoking SPK IDs - Reading SoC version/DNA [1] https://docs.amd.com/r/en-US/ug1085-zynq-ultrascale-trm/eFUSE Lukas Funke (3): firmware: zynqmp: Add support to access efuses amd64: zynqmp: Add command to program efuses drivers: misc: Add driver to access ZynqMP efuses board/xilinx/zynqmp/cmds.c | 101 ++++++++++++++ drivers/firmware/firmware-zynqmp.c | 31 +++++ drivers/misc/Kconfig | 8 ++ drivers/misc/Makefile | 1 + drivers/misc/zynqmp_efuse.c | 213 +++++++++++++++++++++++++++++ include/zynqmp_firmware.h | 2 + 6 files changed, 356 insertions(+) create mode 100644 drivers/misc/zynqmp_efuse.c -- 2.30.2
