From 36958598b7acf690b514141122234b1c3b8e4282 Mon Sep 17 00:00:00 2001
From: Mugunthan V N <mugunthanvnm@ti.com>
Date: Mon, 21 Sep 2015 20:23:51 +0530
Subject: [PATCH] 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>
---
arch/arm/boot/dts/dra72-evm.dts | 7 +------
1 file changed, 1 insertion(+), 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-controller;
#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 {
--
2.34.1