[PATCH AUTOSEL 6.0 18/77] net: dsa: mv88e6xxx: Allow external SMI if serial

Sasha Levin
2022-10-09T22:10:07Z

From: Marcus Carlberg <marcus.carlberg@axis.com>

[ Upstream commit 8532c60efcc5b7b382006129b77aee2c19c43f15 ]

p0_mode set to one of the supported serial mode should not prevent
configuring the external SMI interface in
mv88e6xxx_g2_scratch_gpio_set_smi. The current masking of the p0_mode
only checks the first 2 bits. This results in switches supporting
serial mode cannot setup external SMI on certain serial modes
(Ex: 1000BASE-X and SGMII).

Extend the mask of the p0_mode to include the reduced modes and
serial modes as allowed modes for the external SMI interface.

Signed-off-by: Marcus Carlberg <marcus.carlberg@axis.com>
Link: https://lore.kernel.org/r/20220824093706.19049-1-marcus.carlberg@axis.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/dsa/mv88e6xxx/global2.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/dsa/mv88e6xxx/global2.h b/drivers/net/dsa/mv88e6xxx/global2.h
index 807aeaad9830..7536b8b0ad01 100644
--- a/drivers/net/dsa/mv88e6xxx/global2.h
+++ b/drivers/net/dsa/mv88e6xxx/global2.h
@@ -298,7 +298,7 @@
#define MV88E6352_G2_SCRATCH_CONFIG_DATA1 0x71
#define MV88E6352_G2_SCRATCH_CONFIG_DATA1_NO_CPU BIT(2)
#define MV88E6352_G2_SCRATCH_CONFIG_DATA2 0x72
-#define MV88E6352_G2_SCRATCH_CONFIG_DATA2_P0_MODE_MASK 0x3
+#define MV88E6352_G2_SCRATCH_CONFIG_DATA2_P0_MODE_MASK 0xf
#define MV88E6352_G2_SCRATCH_CONFIG_DATA3 0x73
#define MV88E6352_G2_SCRATCH_CONFIG_DATA3_S_SEL BIT(1)

--
2.35.1