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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 <sbabic@denx.de>
Signed-off-by: Heiko Schocher <hs@denx.de>
Stefano Babic 7 years ago
parent
commit
322ac5f1d5
1 changed files with 7 additions and 0 deletions
  1. 7 0
      board/CarMediaLab/flea3/flea3.c

+ 7 - 0
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;
 }