net: dsa: b53: prevent BRCM_HDR access on older devices

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Older switches don't implement BRCM_HDR register so we should avoid
reading or writing it.

Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Link: https://patch.msgid.link/20250614080000.1884236-11-noltari@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Álvaro Fernández Rojas 2025-06-14 09:59:56 +02:00 • committed by Jakub Kicinski

parent 800728abd9

commit e17813968b

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drivers/net/dsa/b53/b53_common.c

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