mirror of https://gitee.com/openkylin/linux.git
36958598b7
With the current implementation of GPIO hogging and with gpio-pcf857x is built as module, ethernet doesn't work on boot and doesn't throw any error/warning to user. Ethernet becomes operational when inserting gpio-pcf857x module, even this time there is no error/warning logs to user that ethernet is operational. When using with NFS rootfs and gpio-pcf857x as module, board doesn't boot as it doesn't get any ip address and doesn't throw any error/warning. To over come this, now cpsw driver tries to get mode-gpios. When gpio-pcf857x is built as module it will throw error, so that user can decide either to built in gpio-pcf857x to continue with nfs boot or choose alternate rootfs filesystem like sd/ramdisk. When using mmc/ramdisk as root fs, cpsw will probe defer and re-probes again when gpio-pcf857x module is inserted and ethernet becomes operational. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com> |
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