mx35: add GPIO setup on flea3 board

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 <[email protected]> Signed-off-by: Heiko Schocher <[email protected]>
Keerthyj · Nov 16, 2016 · 322ac5f · 322ac5f
1 parent 146fff3
commit 322ac5f
Showing 1 changed file with 7 additions and 0 deletions.
diff --git 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;
 }