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>

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
1 parent 146fff347a
Showing 1 changed file with 7 additions and 0 deletions Side-by-side Diff
board/CarMediaLab/flea3/flea3.c
@@ -122,6 +122,8 @@
 		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 */
@@ -182,6 +184,11 @@
 {
 	/* 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;
 }
...	...	@@ -122,6 +122,8 @@
122	122	MX35_PAD_FEC_TDATA2__FEC_TDATA_2,
123	123	MX35_PAD_FEC_RDATA3__FEC_RDATA_3,
124	124	MX35_PAD_FEC_TDATA3__FEC_TDATA_3,
	125	+ /* GPIO used to power off ethernet */
	126	+ MX35_PAD_STXFS4__GPIO2_31,
125	127	};
126	128
127	129	/* setup pins for FEC */
...	...	@@ -182,6 +184,11 @@
182	184	{
183	185	/* address of boot parameters */
184	186	gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
	187	+
	188	+ /* Enable power for ethernet */
	189	+ gpio_direction_output(63, 0);
	190	+
	191	+ udelay(2000);
185	192
186	193	return 0;
187	194	}