On Thu, Mar 28, 2024 at 07:29:10AM +0100, A. Sverdlin wrote:
From: Alexander Sverdlin alexander.sverdlin@siemens.com
am65_cpsw_ofdata_parse_phy() tries to handle the case when PHY is not specified in DT gracefully:
am65_cpsw_nuss_port ethernet@8000000port@1: can't parse phy-handle port 1 (-2)
am65_cpsw_mdio_init() in turn is prepared for this, checks if priv->has_phy == 0 and bails out (leaving cpsw_common->bus == NULL).
am65_cpsw_phy_init() however is not prepared for this and calls phy_connect(cpsw_common->bus, ...) unconditionally, which leads to:
"Synchronous Abort" handler, esr 0x8600000d, far 0x0 elr: ffffffff808ab000 lr : 000000008083bde4 (reloc)
where lr points to the instruction right after bus->read() in get_phy_id().
Fixes: 9d0dca1199d1 ("net: ethernet: ti: Introduce am654 gigabit eth switch subsystem driver") Signed-off-by: Alexander Sverdlin alexander.sverdlin@siemens.com
Reviewed-by: Siddharth Vadapalli s-vadapalli@ti.com
Regards, Siddharth.