[PATCH 3/7] imx: ventana: remove phy gpio reset from dt

Tim Harvey tharvey at gateworks.com
Thu Sep 30 00:04:18 CEST 2021


We configure network phy configuration for internal delay, LED config,
and clock config. If we leave the phy reset gpio defined in dt the
kernel may issue a reset to the phy and break these configs. While some
may be handled by a kernel phy driver, others may not (typically LED
config).

Signed-off-by: Tim Harvey <tharvey at gateworks.com>
---
 board/gateworks/gw_ventana/gw_ventana.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/board/gateworks/gw_ventana/gw_ventana.c b/board/gateworks/gw_ventana/gw_ventana.c
index 79629828d0..16468060f7 100644
--- a/board/gateworks/gw_ventana/gw_ventana.c
+++ b/board/gateworks/gw_ventana/gw_ventana.c
@@ -1047,6 +1047,14 @@ int ft_board_setup(void *blob, struct bd_info *bd)
 		ft_board_pci_fixup(blob, bd);
 #endif
 
+	/*
+	 * remove reset gpio control as we configure the PHY registers
+	 * for internal delay, LED config, and clock config in the bootloader
+	 */
+	i = fdt_node_offset_by_compatible(blob, -1, "fsl,imx6q-fec");
+	if (i)
+		fdt_delprop(blob, i, "phy-reset-gpios");
+
 	/*
 	 * Peripheral Config:
 	 *  remove nodes by alias path if EEPROM config tells us the
-- 
2.17.1



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