imx: clock support enet2 anatop clock support

To i.MX6SX/UL, two ethernet interfaces are supported.
Add ENET2 clock support:
1. Introduce a new input parameter "fec_id", only 0 and 1 are allowed.
   To value 1, only i.MX6SX/UL can pass the check.
2. Modify board code who use this api to follow new api prototype.

Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Cc: Heiko Schocher <hs@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Nikolaos Pasaloukos <Nikolaos.Pasaloukos@imgtec.com>
Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: Stefan Roese <sr@denx.de>
diff --git a/board/aristainetos/aristainetos-v1.c b/board/aristainetos/aristainetos-v1.c
index d6a7614..b8fed2e 100644
--- a/board/aristainetos/aristainetos-v1.c
+++ b/board/aristainetos/aristainetos-v1.c
@@ -185,7 +185,7 @@
 	/* clear gpr1[14], gpr1[18:17] to select anatop clock */
 	clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC_MASK, 0);
 
-	ret = enable_fec_anatop_clock(ENET_50MHZ);
+	ret = enable_fec_anatop_clock(0, ENET_50MHZ);
 	if (ret)
 		return ret;
 
diff --git a/board/barco/platinum/platinum_picon.c b/board/barco/platinum/platinum_picon.c
index b2eab76..0384a26 100644
--- a/board/barco/platinum/platinum_picon.c
+++ b/board/barco/platinum/platinum_picon.c
@@ -148,7 +148,7 @@
 	/* set GPIO_16 as ENET_REF_CLK_OUT */
 	setbits_le32(&iomux->gpr[1], IOMUXC_GPR1_ENET_CLK_SEL_MASK);
 
-	return enable_fec_anatop_clock(ENET_50MHZ);
+	return enable_fec_anatop_clock(0, ENET_50MHZ);
 }
 
 int platinum_setup_i2c(void)
diff --git a/board/freescale/mx6qsabreauto/mx6qsabreauto.c b/board/freescale/mx6qsabreauto/mx6qsabreauto.c
index 98602f8..7c0e90a 100644
--- a/board/freescale/mx6qsabreauto/mx6qsabreauto.c
+++ b/board/freescale/mx6qsabreauto/mx6qsabreauto.c
@@ -361,7 +361,7 @@
 		 * select ENET MAC0 TX clock from PLL
 		 */
 		imx_iomux_set_gpr_register(5, 9, 1, 1);
-		enable_fec_anatop_clock(ENET_125MHZ);
+		enable_fec_anatop_clock(0, ENET_125MHZ);
 	}
 
 	setup_iomux_enet();
diff --git a/board/freescale/mx6slevk/mx6slevk.c b/board/freescale/mx6slevk/mx6slevk.c
index 7c18c90..98e3ef0 100644
--- a/board/freescale/mx6slevk/mx6slevk.c
+++ b/board/freescale/mx6slevk/mx6slevk.c
@@ -279,7 +279,7 @@
 	/* clear gpr1[14], gpr1[18:17] to select anatop clock */
 	clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC_MASK, 0);
 
-	return enable_fec_anatop_clock(ENET_50MHZ);
+	return enable_fec_anatop_clock(0, ENET_50MHZ);
 }
 #endif
 
diff --git a/board/freescale/mx6sxsabresd/mx6sxsabresd.c b/board/freescale/mx6sxsabresd/mx6sxsabresd.c
index d58a79a..ffc0046 100644
--- a/board/freescale/mx6sxsabresd/mx6sxsabresd.c
+++ b/board/freescale/mx6sxsabresd/mx6sxsabresd.c
@@ -170,7 +170,7 @@
 	reg |= BM_ANADIG_PLL_ENET_REF_25M_ENABLE;
 	writel(reg, &anatop->pll_enet);
 
-	return enable_fec_anatop_clock(ENET_125MHZ);
+	return enable_fec_anatop_clock(0, ENET_125MHZ);
 }
 
 int board_eth_init(bd_t *bis)
diff --git a/board/solidrun/mx6cuboxi/mx6cuboxi.c b/board/solidrun/mx6cuboxi/mx6cuboxi.c
index 9b1ecf0..8247e43 100644
--- a/board/solidrun/mx6cuboxi/mx6cuboxi.c
+++ b/board/solidrun/mx6cuboxi/mx6cuboxi.c
@@ -164,7 +164,7 @@
 	struct mii_dev *bus;
 	struct phy_device *phydev;
 
-	int ret = enable_fec_anatop_clock(ENET_25MHZ);
+	int ret = enable_fec_anatop_clock(0, ENET_25MHZ);
 	if (ret)
 		return ret;