ENGR00181358-1: fec: add platform support for FEC driver

Add platform support for FEC driver.

Signed-off-by: Jason Jin <Jason.jin@freescale.com>
Signed-off-by: Alison Wang <b18965@freescale.com>

1 files changed, 56 insertions, 0 deletions

diff --git a/arch/arm/mach-mvf/mvf_fec.c b/arch/arm/mach-mvf/mvf_fec.c
new file mode 100644
index 000000000000..430793105e98
--- /dev/null
+++ b/arch/arm/mach-mvf/mvf_fec.c
@@ -0,0 +1,56 @@
+/*
+ * Copyright 2012 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#include <linux/fec.h>
+#include <linux/etherdevice.h>
+
+#include <mach/common.h>
+#include <mach/hardware.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include "devices-mvf.h"
+
+#define ENET_PALR	0x0e4
+#define ENET_PAUR	0x0e8
+static unsigned char default_mac[ETH_ALEN] = {
+			0x00, 0xe0, 0x0c, 0xbc, 0xe5, 0x60};
+/* FEC mac registers set by bootloader */
+static int fec_get_mac_addr(unsigned char *mac)
+{
+	unsigned int value;
+
+	value = readl(MVF_IO_ADDRESS(MVF_FEC_BASE_ADDR) + ENET_PALR);
+	mac[2] = value & 0xff;
+	mac[3] = (value >> 8) & 0xff;
+	mac[4] = (value >> 16) & 0xff;
+	mac[5] = (value >> 24) & 0xff;
+	value = readl(MVF_IO_ADDRESS(MVF_FEC_BASE_ADDR) + ENET_PAUR);
+	mac[0] = (value >> 16) & 0xff;
+	mac[1] = (value >> 24) & 0xff;
+
+	return 0;
+}
+
+void __init mvf_init_fec(struct fec_platform_data fec_data)
+{
+	fec_get_mac_addr(fec_data.mac);
+	if (!is_valid_ether_addr(fec_data.mac))
+		memcpy(fec_data.mac, default_mac, ETH_ALEN);
+
+	mvf_add_fec(&fec_data);
+}