From fb9765d5f9a1fbe7ca9c472cca9ceb561b02c1a1 Mon Sep 17 00:00:00 2001 From: Patrick Wildt Date: Tue, 9 May 2017 13:54:44 +0200 Subject: [PATCH] arm: mvebu: clearfog: reset uSOM onboard 1512 phy Use GPIO19 which is wired to the uSOM phy reset signal in order to reset the uSOM's 1512 Gigabit Ethernet phy. This GPIO is valid on ClearFog rev 2.1 and newer. Taken from SolidRun's specialised u-boot, see https://github.com/SolidRun/u-boot-armada38x/commit/f906e3df172e07ac82cdd87b278d7896949262ea Signed-off-by: Patrick Wildt Signed-off-by: Stefan Roese --- board/solidrun/clearfog/clearfog.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/board/solidrun/clearfog/clearfog.c b/board/solidrun/clearfog/clearfog.c index 2773f5957e..3a8257cac3 100644 --- a/board/solidrun/clearfog/clearfog.c +++ b/board/solidrun/clearfog/clearfog.c @@ -131,8 +131,12 @@ int board_init(void) /* Toggle GPIO41 to reset onboard switch and phy */ clrbits_le32(MVEBU_GPIO1_BASE + 0x0, BIT(9)); clrbits_le32(MVEBU_GPIO1_BASE + 0x4, BIT(9)); + /* GPIO 19 on ClearFog rev 2.1 controls the uSOM onboard phy reset */ + clrbits_le32(MVEBU_GPIO0_BASE + 0x0, BIT(19)); + clrbits_le32(MVEBU_GPIO0_BASE + 0x4, BIT(19)); mdelay(1); setbits_le32(MVEBU_GPIO1_BASE + 0x0, BIT(9)); + setbits_le32(MVEBU_GPIO0_BASE + 0x0, BIT(19)); mdelay(10); /* Init I2C IO expanders */