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arm: mvebu: clearfog: reset uSOM onboard 1512 phy

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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 <patrick@blueri.se>
Signed-off-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Patrick Wildt
2017-05-31 07:42:40 +02:00
committed by Stefan Roese
parent 780f80cd0f
commit fb9765d5f9
1 changed files with 4 additions and 0 deletions
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board/solidrun/clearfog/clearfog.c
+4
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@@ -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 */