[U-Boot] [PATCH 3/4] mx35: add GPIO setup on flea3 board
Heiko Schocher
hs at denx.de
Mon Oct 17 15:51:34 CEST 2016
From: Stefano Babic <sbabic at denx.de>
Hardware revision "e" of the board introduces
a GPIO to reduce power consumption in stand-by mode.
This must be enable (active low) at the startup
for normal behaviour.
Signed-off-by: Stefano Babic <sbabic at denx.de>
Signed-off-by: Heiko Schocher <hs at denx.de>
---
board/CarMediaLab/flea3/flea3.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/board/CarMediaLab/flea3/flea3.c b/board/CarMediaLab/flea3/flea3.c
index ca3e44b..3cd4dc9 100644
--- a/board/CarMediaLab/flea3/flea3.c
+++ b/board/CarMediaLab/flea3/flea3.c
@@ -122,6 +122,8 @@ static void setup_iomux_fec(void)
MX35_PAD_FEC_TDATA2__FEC_TDATA_2,
MX35_PAD_FEC_RDATA3__FEC_RDATA_3,
MX35_PAD_FEC_TDATA3__FEC_TDATA_3,
+ /* GPIO used to power off ethernet */
+ MX35_PAD_STXFS4__GPIO2_31,
};
/* setup pins for FEC */
@@ -183,6 +185,11 @@ int board_init(void)
/* address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
+ /* Enable power for ethernet */
+ gpio_direction_output(63, 0);
+
+ udelay(2000);
+
return 0;
}
--
2.5.5
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