net: sparx5: fix wrong chip ids for TSN SKUs
authorDaniel Machon <daniel.machon@microchip.com>
Wed, 6 May 2026 07:25:38 +0000 (09:25 +0200)
committerJakub Kicinski <kuba@kernel.org>
Thu, 7 May 2026 16:08:46 +0000 (09:08 -0700)
commitb131dc93f7bf1b1461f5bde0c06c4c2384aa5b58
tree64c5ef73c89dbb589355cd1cdcba3e6a4e9cc40e
parentdedf6c90386d99b878763c183a08b61d3ce4824e
net: sparx5: fix wrong chip ids for TSN SKUs

The TSN SKUs in enum spx5_target_chiptype have incorrect IDs:

  SPX5_TARGET_CT_7546TSN    = 0x47546,
  SPX5_TARGET_CT_7549TSN    = 0x47549,
  SPX5_TARGET_CT_7552TSN    = 0x47552,
  SPX5_TARGET_CT_7556TSN    = 0x47556,
  SPX5_TARGET_CT_7558TSN    = 0x47558,

The value read back from the chip is GCB_CHIP_ID_PART_ID, which is a
GENMASK(27, 12) field, i.e. at most 16 bits wide. It can never match
these IDs, so probing a TSN part fails with a "Target not supported"
error.

Fix the enum to use the actual 16-bit part IDs returned by the
hardware: 0x0546, 0x0549, 0x0552, 0x0556 and 0x0558.

Reported-by: Andrew Lunn <andrew@lunn.ch>
Fixes: 3cfa11bac9bb ("net: sparx5: add the basic sparx5 driver")
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Link: https://patch.msgid.link/20260506-misc-fixes-sparx5-lan969x-v2-3-fb236aa96908@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
drivers/net/ethernet/microchip/sparx5/sparx5_main.h