[PATCH RFC net-next 0/3] net: dsa: mxl862xx: support firmware update
From: Daniel Golle <daniel@makrotopia.org>
Date: 2026-07-07 14:29:22
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The MaxLinear MxL862xx switches are running a ZephyrOS-based firmware which is stored on a dedicated SPI flash chip connected to the switch IC. When using the switch with DSA a method to allow the host to update the firmware is needed. DSA currently doesn't support devlink's flash_update method and implementing the necessary teardown and subsequent re-probe is not trivial. This series is marked as RFC as I'd like to receive feedback regarding the use of devlink and the teardown/re-probe implementation. Daniel Golle (3): net: dsa: wire flash_update devlink callback to drivers net: dsa: mxl862xx: add SMDIO clause-22 register access net: dsa: mxl862xx: add devlink flash_update and info_get drivers/net/dsa/mxl862xx/Makefile | 2 +- drivers/net/dsa/mxl862xx/mxl862xx-cmd.h | 1 + drivers/net/dsa/mxl862xx/mxl862xx-fw.c | 434 +++++++++++++++++++++++ drivers/net/dsa/mxl862xx/mxl862xx-fw.h | 15 + drivers/net/dsa/mxl862xx/mxl862xx-host.c | 42 +++ drivers/net/dsa/mxl862xx/mxl862xx-host.h | 2 + drivers/net/dsa/mxl862xx/mxl862xx.c | 3 + drivers/net/dsa/mxl862xx/mxl862xx.h | 2 + include/net/dsa.h | 3 + net/dsa/devlink.c | 13 + 10 files changed, 516 insertions(+), 1 deletion(-) create mode 100644 drivers/net/dsa/mxl862xx/mxl862xx-fw.c create mode 100644 drivers/net/dsa/mxl862xx/mxl862xx-fw.h -- 2.55.0