arm: bcm281xx: net: Add Ethernet Driver

The Broadcom StarFighter2 Ethernet driver is used in multiple Broadcom
SoC(s) and:
- supports multiple MAC blocks,
- provides support for the Broadcom GMAC.
This driver requires MII and PHYLIB.

Signed-off-by: Jiandong Zheng <jdzheng@broadcom.com>
Signed-off-by: Steve Rae <srae@broadcom.com>

1 files changed, 70 insertions, 0 deletions

diff --git a/drivers/net/bcm-sf2-eth.h b/drivers/net/bcm-sf2-eth.h
new file mode 100644
index 0000000..49a5836
--- /dev/null
+++ b/drivers/net/bcm-sf2-eth.h
@@ -0,0 +1,70 @@
+/*
+ * Copyright 2014 Broadcom Corporation.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _BCM_SF2_ETH_H_
+#define _BCM_SF2_ETH_H_
+
+#include <phy.h>
+
+#define RX_BUF_SIZE	2048
+/* RX_BUF_NUM must be power of 2 */
+#define RX_BUF_NUM	32
+
+#define TX_BUF_SIZE	2048
+/* TX_BUF_NUM must be power of 2 */
+#define TX_BUF_NUM	2
+
+/* Support 2 Ethernet ports now */
+#define BCM_ETH_MAX_PORT_NUM	2
+
+#define CONFIG_BCM_SF2_ETH_DEFAULT_PORT	0
+
+enum {
+	MAC_DMA_TX = 1,
+	MAC_DMA_RX = 2
+};
+
+struct eth_dma {
+	void *tx_desc_aligned;
+	void *rx_desc_aligned;
+	void *tx_desc;
+	void *rx_desc;
+
+	uint8_t *tx_buf;
+	uint8_t *rx_buf;
+
+	int cur_tx_index;
+	int cur_rx_index;
+
+	int (*tx_packet)(struct eth_dma *dma, void *packet, int length);
+	bool (*check_tx_done)(struct eth_dma *dma);
+
+	int (*check_rx_done)(struct eth_dma *dma, uint8_t *buf);
+
+	int (*enable_dma)(struct eth_dma *dma, int dir);
+	int (*disable_dma)(struct eth_dma *dma, int dir);
+};
+
+struct eth_info {
+	struct eth_dma dma;
+	phy_interface_t phy_interface;
+	struct phy_device *port[BCM_ETH_MAX_PORT_NUM];
+	int port_num;
+
+	int (*miiphy_read)(const char *devname, unsigned char phyaddr,
+			   unsigned char reg, unsigned short *value);
+	int (*miiphy_write)(const char *devname, unsigned char phyaddr,
+			    unsigned char reg, unsigned short value);
+
+	int (*mac_init)(struct eth_device *dev);
+	int (*enable_mac)(void);
+	int (*disable_mac)(void);
+	int (*set_mac_addr)(unsigned char *mac);
+	int (*set_mac_speed)(int speed, int duplex);
+
+};
+
+#endif /* _BCM_SF2_ETH_H_ */