On Android 9, there is a description of the tja1102p1 interface in tja110x. c. At present, we connect fec2 to the switch as a fixed-link, and it happens that the phy id of the fixed-link connection is 0, so there will be conflicts. How do you handle this? Can't fec2 connect to the switch as a fixed-link connection?
tja110x. c
/* load driver for TJA1102p1. It needs to be ensured,
* that no other mdio device with phy id 0 is present
*/
#define CONFIG_TJA1102_FIX
kernel log:
[ 4.421415] NXP PHY: loading NXP PHY driver: [autonomous mode]
[ 4.438492] imx8qm-pinctrl iomuxc: pin SC_P_COMP_CTL_GPIO_1V8_3V3_ENET_ENETA already requested by 5b050000.ethernet; cannot claim for fixed-0:00
[ 4.438495] imx8qm-pinctrl iomuxc: pin-268 (fixed-0:00) status -22
[ 4.438499] imx8qm-pinctrl iomuxc: could not request pin 268 (SC_P_COMP_CTL_GPIO_1V8_3V3_ENET_ENETA) from group fec2grp on device iomuxc
[ 4.438501] TJA1102_p1 fixed-0:00: Error applying setting, reverse things back
[ 4.438512] TJA1102_p1: probe of fixed-0:00 failed with error -22
