arm: A320: driver for FTMAC100 ethernet controller

This patch adds an FTMAC100 ethernet driver for Faraday A320 evaluation board.

Signed-off-by: Po-Yu Chuang <ratbert@faraday-tech.com>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>

1 files changed, 154 insertions, 0 deletions

diff --git a/drivers/net/ftmac100.h b/drivers/net/ftmac100.h
new file mode 100644
index 0000000..21142d9
--- /dev/null
+++ b/drivers/net/ftmac100.h
@@ -0,0 +1,154 @@
+/*
+ * Faraday FTMAC100 Ethernet
+ *
+ * (C) Copyright 2009 Faraday Technology
+ * Po-Yu Chuang <ratbert@faraday-tech.com>
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef __FTMAC100_H
+#define __FTMAC100_H
+
+struct ftmac100 {
+	unsigned int	isr;		/* 0x00 */
+	unsigned int	imr;		/* 0x04 */
+	unsigned int	mac_madr;	/* 0x08 */
+	unsigned int	mac_ladr;	/* 0x0c */
+	unsigned int	maht0;		/* 0x10 */
+	unsigned int	maht1;		/* 0x14 */
+	unsigned int	txpd;		/* 0x18 */
+	unsigned int	rxpd;		/* 0x1c */
+	unsigned int	txr_badr;	/* 0x20 */
+	unsigned int	rxr_badr;	/* 0x24 */
+	unsigned int	itc;		/* 0x28 */
+	unsigned int	aptc;		/* 0x2c */
+	unsigned int	dblac;		/* 0x30 */
+	unsigned int	pad1[3];	/* 0x34 - 0x3c */
+	unsigned int	pad2[16];	/* 0x40 - 0x7c */
+	unsigned int	pad3[2];	/* 0x80 - 0x84 */
+	unsigned int	maccr;		/* 0x88 */
+	unsigned int	macsr;		/* 0x8c */
+	unsigned int	phycr;		/* 0x90 */
+	unsigned int	phywdata;	/* 0x94 */
+	unsigned int	fcr;		/* 0x98 */
+	unsigned int	bpr;		/* 0x9c */
+	unsigned int	pad4[8];	/* 0xa0 - 0xbc */
+	unsigned int	pad5;		/* 0xc0 */
+	unsigned int	ts;		/* 0xc4 */
+	unsigned int	dmafifos;	/* 0xc8 */
+	unsigned int	tm;		/* 0xcc */
+	unsigned int	pad6;		/* 0xd0 */
+	unsigned int	tx_mcol_scol;	/* 0xd4 */
+	unsigned int	rpf_aep;	/* 0xd8 */
+	unsigned int	xm_pg;		/* 0xdc */
+	unsigned int	runt_tlcc;	/* 0xe0 */
+	unsigned int	crcer_ftl;	/* 0xe4 */
+	unsigned int	rlc_rcc;	/* 0xe8 */
+	unsigned int	broc;		/* 0xec */
+	unsigned int	mulca;		/* 0xf0 */
+	unsigned int	rp;		/* 0xf4 */
+	unsigned int	xp;		/* 0xf8 */
+};
+
+/*
+ * Interrupt status register & interrupt mask register
+ */
+#define FTMAC100_INT_RPKT_FINISH	(1 << 0)
+#define FTMAC100_INT_NORXBUF		(1 << 1)
+#define FTMAC100_INT_XPKT_FINISH	(1 << 2)
+#define FTMAC100_INT_NOTXBUF		(1 << 3)
+#define FTMAC100_INT_XPKT_OK		(1 << 4)
+#define FTMAC100_INT_XPKT_LOST		(1 << 5)
+#define FTMAC100_INT_RPKT_SAV		(1 << 6)
+#define FTMAC100_INT_RPKT_LOST		(1 << 7)
+#define FTMAC100_INT_AHB_ERR		(1 << 8)
+#define FTMAC100_INT_PHYSTS_CHG		(1 << 9)
+
+/*
+ * Automatic polling timer control register
+ */
+#define FTMAC100_APTC_RXPOLL_CNT(x)	(((x) & 0xf) << 0)
+#define FTMAC100_APTC_RXPOLL_TIME_SEL	(1 << 4)
+#define FTMAC100_APTC_TXPOLL_CNT(x)	(((x) & 0xf) << 8)
+#define FTMAC100_APTC_TXPOLL_TIME_SEL	(1 << 12)
+
+/*
+ * MAC control register
+ */
+#define FTMAC100_MACCR_XDMA_EN		(1 << 0)
+#define FTMAC100_MACCR_RDMA_EN		(1 << 1)
+#define FTMAC100_MACCR_SW_RST		(1 << 2)
+#define FTMAC100_MACCR_LOOP_EN		(1 << 3)
+#define FTMAC100_MACCR_CRC_DIS		(1 << 4)
+#define FTMAC100_MACCR_XMT_EN		(1 << 5)
+#define FTMAC100_MACCR_ENRX_IN_HALFTX	(1 << 6)
+#define FTMAC100_MACCR_RCV_EN		(1 << 8)
+#define FTMAC100_MACCR_HT_MULTI_EN	(1 << 9)
+#define FTMAC100_MACCR_RX_RUNT		(1 << 10)
+#define FTMAC100_MACCR_RX_FTL		(1 << 11)
+#define FTMAC100_MACCR_RCV_ALL		(1 << 12)
+#define FTMAC100_MACCR_CRC_APD		(1 << 14)
+#define FTMAC100_MACCR_FULLDUP		(1 << 15)
+#define FTMAC100_MACCR_RX_MULTIPKT	(1 << 16)
+#define FTMAC100_MACCR_RX_BROADPKT	(1 << 17)
+
+/*
+ * Transmit descriptor, aligned to 16 bytes
+ */
+struct ftmac100_txdes {
+	unsigned int	txdes0;
+	unsigned int	txdes1;
+	unsigned int	txdes2;	/* TXBUF_BADR */
+	unsigned int	txdes3;	/* not used by HW */
+} __attribute__ ((aligned(16)));
+
+#define FTMAC100_TXDES0_TXPKT_LATECOL	(1 << 0)
+#define FTMAC100_TXDES0_TXPKT_EXSCOL	(1 << 1)
+#define FTMAC100_TXDES0_TXDMA_OWN	(1 << 31)
+
+#define FTMAC100_TXDES1_TXBUF_SIZE(x)	((x) & 0x7ff)
+#define FTMAC100_TXDES1_LTS		(1 << 27)
+#define FTMAC100_TXDES1_FTS		(1 << 28)
+#define FTMAC100_TXDES1_TX2FIC		(1 << 29)
+#define FTMAC100_TXDES1_TXIC		(1 << 30)
+#define FTMAC100_TXDES1_EDOTR		(1 << 31)
+
+/*
+ * Receive descriptor, aligned to 16 bytes
+ */
+struct ftmac100_rxdes {
+	unsigned int	rxdes0;
+	unsigned int	rxdes1;
+	unsigned int	rxdes2;	/* RXBUF_BADR */
+	unsigned int	rxdes3;	/* not used by HW */
+} __attribute__ ((aligned(16)));
+
+#define FTMAC100_RXDES0_RFL(des)	((des) & 0x7ff)
+#define FTMAC100_RXDES0_MULTICAST	(1 << 16)
+#define FTMAC100_RXDES0_BROADCAST	(1 << 17)
+#define FTMAC100_RXDES0_RX_ERR		(1 << 18)
+#define FTMAC100_RXDES0_CRC_ERR		(1 << 19)
+#define FTMAC100_RXDES0_FTL		(1 << 20)
+#define FTMAC100_RXDES0_RUNT		(1 << 21)
+#define FTMAC100_RXDES0_RX_ODD_NB	(1 << 22)
+#define FTMAC100_RXDES0_LRS		(1 << 28)
+#define FTMAC100_RXDES0_FRS		(1 << 29)
+#define FTMAC100_RXDES0_RXDMA_OWN	(1 << 31)
+
+#define FTMAC100_RXDES1_RXBUF_SIZE(x)	((x) & 0x7ff)
+#define FTMAC100_RXDES1_EDORR		(1 << 31)
+
+#endif	/* __FTMAC100_H */