net/Blackfin: move on-chip MAC driver into drivers/net/

The Blackfin on-chip MAC driver was being managed in the BF537-STAMP board
directory, but it is not board specific, so relocate it to the drivers dir
so that other Blackfin ports can utilize it.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

1 files changed, 89 insertions, 0 deletions

diff --git a/drivers/net/bfin_mac.h b/drivers/net/bfin_mac.h
new file mode 100644
index 0000000..c8a94d0
--- /dev/null
+++ b/drivers/net/bfin_mac.h
@@ -0,0 +1,89 @@
+/*
+ * bfin_mac.h - some defines/structures for the Blackfin on-chip MAC.
+ *
+ * Copyright (c) 2005-2008 Analog Device, Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef __BFIN_MAC_H__
+#define __BFIN_MAC_H__
+
+#define PHYADDR			0x01
+#define NO_PHY_REGS		0x20
+
+#define DEFAULT_PHY_PHYID1	0x0007
+#define DEFAULT_PHY_PHYID2	0xC0A3
+#define PHY_MODECTL		0x00
+#define PHY_MODESTAT		0x01
+#define PHY_PHYID1		0x02
+#define PHY_PHYID2		0x03
+#define PHY_ANAR		0x04
+#define PHY_ANLPAR		0x05
+#define PHY_ANER		0x06
+
+#define PHY_RESET		0x8000
+#define PHY_ANEG_EN		0x1000
+#define PHY_DUPLEX		0x0100
+#define PHY_SPD_SET		0x2000
+
+#define RECV_BUFSIZE		(0x614)
+
+typedef volatile u32 reg32;
+typedef volatile u16 reg16;
+
+typedef struct ADI_DMA_CONFIG_REG {
+	u16 b_DMA_EN:1;		/* 0	Enabled				*/
+	u16 b_WNR:1;		/* 1	Direction			*/
+	u16 b_WDSIZE:2;		/* 2:3	Transfer word size		*/
+	u16 b_DMA2D:1;		/* 4	DMA mode			*/
+	u16 b_RESTART:1;	/* 5	Retain FIFO			*/
+	u16 b_DI_SEL:1;		/* 6	Data interrupt timing select	*/
+	u16 b_DI_EN:1;		/* 7	Data interrupt enabled		*/
+	u16 b_NDSIZE:4;		/* 8:11	Flex descriptor size		*/
+	u16 b_FLOW:3;		/* 12:14Flow				*/
+} ADI_DMA_CONFIG_REG;
+
+typedef struct adi_ether_frame_buffer {
+	u16 NoBytes;		/* the no. of following bytes	*/
+	u8 Dest[6];		/* destination MAC address	*/
+	u8 Srce[6];		/* source MAC address		*/
+	u16 LTfield;		/* length/type field		*/
+	u8 Data[0];		/* payload bytes		*/
+} ADI_ETHER_FRAME_BUFFER;
+/* 16 bytes/struct	*/
+
+typedef struct dma_descriptor {
+	struct dma_descriptor *NEXT_DESC_PTR;
+	u32 START_ADDR;
+	ADI_DMA_CONFIG_REG CONFIG;
+} DMA_DESCRIPTOR;
+/* 10 bytes/struct in 12 bytes */
+
+typedef struct adi_ether_buffer {
+	DMA_DESCRIPTOR Dma[2];		/* first for the frame, second for the status */
+	ADI_ETHER_FRAME_BUFFER *FrmData;/* pointer to data */
+	struct adi_ether_buffer *pNext;	/* next buffer */
+	struct adi_ether_buffer *pPrev;	/* prev buffer */
+	u16 IPHdrChksum;		/* the IP header checksum */
+	u16 IPPayloadChksum;		/* the IP header and payload checksum */
+	volatile u32 StatusWord;	/* the frame status word */
+} ADI_ETHER_BUFFER;
+/* 40 bytes/struct in 44 bytes */
+
+static ADI_ETHER_BUFFER *SetupRxBuffer(int no);
+static ADI_ETHER_BUFFER *SetupTxBuffer(int no);
+
+static int bfin_EMAC_init(struct eth_device *dev, bd_t *bd);
+static void bfin_EMAC_halt(struct eth_device *dev);
+static int bfin_EMAC_send(struct eth_device *dev, volatile void *packet, int length);
+static int bfin_EMAC_recv(struct eth_device *dev);
+
+static void PollMdcDone(void);
+static void WrPHYReg(u16 PHYAddr, u16 RegAddr, u16 Data);
+static u16 RdPHYReg(u16 PHYAddr, u16 RegAddr);
+static int SetupSystemRegs(int *opmode);
+
+static void bfin_EMAC_setup_addr(bd_t *bd);
+
+#endif