Re: [PATCH 0/3] Add eFuse access for ZynqMP
On Tue, 14 May 2024 16:04:13 +0200 lukas.funke-...@weidmueller.com wrote: > From: Lukas Funke > > > 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. Vendor specific commands aren't great. There is the 'fuse' command in u-boot. You need to implement the fuse_read() fuse_sense() fuse_prog() fuse_override() functions. See for example arch/arm/mach-mvebu/efuse.c, or other implementations. Please don't invent new vendor specific commands in new code, it is an antipattern. Marek
[PATCH 0/3] Add eFuse access for ZynqMP
From: Lukas Funke 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 : 85 66 b1 32 43 f2 4a 02 00 00 00 40 .f.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
