[PATCH net-next 05/10] net: dsa: microchip: adapt port offset for KSZ8463's PTP register
From: Bastien Curutchet (Schneider Electric) <hidden>
Date: 2026-07-09 06:42:49
Also in:
lkml
Subsystem:
microchip ksz series ethernet switch driver, networking drivers, networking [dsa], the rest · Maintainers:
Woojung Huh, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Vladimir Oltean, Linus Torvalds
In KSZ8463 register's layout, the offset between port 1 and port 2 registers isn't the same in the generic control register area than in the PTP register area. The get_port_addr() always uses the same offset so it doesn't work when it's used to access PTP registers. Adapt the port offset in get_port_addr() when the accessed register is in the PTP area. Signed-off-by: Bastien Curutchet (Schneider Electric) <redacted> --- drivers/net/dsa/microchip/ksz8.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/net/dsa/microchip/ksz8.c b/drivers/net/dsa/microchip/ksz8.c
index c099a7005808..5e5bfc5cae2d 100644
--- a/drivers/net/dsa/microchip/ksz8.c
+++ b/drivers/net/dsa/microchip/ksz8.c@@ -2831,6 +2831,9 @@ static u32 ksz8_get_port_addr(int port, int offset) static u32 ksz8463_get_port_addr(int port, int offset) { + if (offset >= KSZ8463_PTP_CLK_CTRL) + return offset + 0x20 * port; + return offset + 0x18 * port; }
--
2.54.0