Commit 36958598 authored by Mugunthan V N's avatar Mugunthan V N Committed by Tony Lindgren

ARM: dts: dra72-evm: remove cpsw gpio hogging and add mode-gpios

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: default avatarMugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent 23c74bf5
...@@ -429,12 +429,6 @@ pcf_gpio_21: gpio@21 { ...@@ -429,12 +429,6 @@ pcf_gpio_21: gpio@21 {
interrupts = <11 IRQ_TYPE_EDGE_FALLING>; interrupts = <11 IRQ_TYPE_EDGE_FALLING>;
interrupt-controller; interrupt-controller;
#interrupt-cells = <2>; #interrupt-cells = <2>;
cpsw_sel_s0 {
gpio-hog;
gpios = <4 GPIO_ACTIVE_HIGH>;
output-low;
};
}; };
tlv320aic3106: tlv320aic3106@19 { tlv320aic3106: tlv320aic3106@19 {
...@@ -689,6 +683,7 @@ &mac { ...@@ -689,6 +683,7 @@ &mac {
pinctrl-0 = <&cpsw_default>; pinctrl-0 = <&cpsw_default>;
pinctrl-1 = <&cpsw_sleep>; pinctrl-1 = <&cpsw_sleep>;
slaves = <1>; slaves = <1>;
mode-gpios = <&pcf_gpio_21 4 GPIO_ACTIVE_HIGH>;
}; };
&cpsw_emac0 { &cpsw_emac0 {
......
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