diff options
authorMugunthan V N <mugunthanvnm@ti.com>2015-09-21 20:23:51 +0530
committerTony Lindgren <tony@atomide.com>2015-10-20 09:16:21 -0700
commit36958598b7acf690b514141122234b1c3b8e4282 (patch)
parent23c74bf5fe592dff5f6b07c62fa3f909d917f308 (diff)
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: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
1 files changed, 1 insertions, 6 deletions
diff --git a/arch/arm/boot/dts/dra72-evm.dts b/arch/arm/boot/dts/dra72-evm.dts
index 27e414295acc..d6104d5f0c01 100644
--- a/arch/arm/boot/dts/dra72-evm.dts
+++ b/arch/arm/boot/dts/dra72-evm.dts
@@ -429,12 +429,6 @@
interrupts = <11 IRQ_TYPE_EDGE_FALLING>;
#interrupt-cells = <2>;
- cpsw_sel_s0 {
- gpio-hog;
- gpios = <4 GPIO_ACTIVE_HIGH>;
- output-low;
- };
tlv320aic3106: tlv320aic3106@19 {
@@ -689,6 +683,7 @@
pinctrl-0 = <&cpsw_default>;
pinctrl-1 = <&cpsw_sleep>;
slaves = <1>;
+ mode-gpios = <&pcf_gpio_21 4 GPIO_ACTIVE_HIGH>;
&cpsw_emac0 {

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