Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 236 insertions, 0 deletions

diff --git a/drivers/net/au1000_eth.h b/drivers/net/au1000_eth.h
new file mode 100644
index 000000000000..7f9326e39cc0
--- /dev/null
+++ b/drivers/net/au1000_eth.h
@@ -0,0 +1,236 @@
+/*
+ *
+ * Alchemy Au1x00 ethernet driver include file
+ *
+ * Author: Pete Popov <ppopov@mvista.com>
+ *
+ * Copyright 2001 MontaVista Software Inc.
+ *
+ * ########################################################################
+ *
+ *  This program is free software; you can distribute it and/or modify it
+ *  under the terms of the GNU General Public License (Version 2) as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope 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.,
+ *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * ########################################################################
+ *
+ * 
+ */
+
+
+#define MAC_IOSIZE 0x10000
+#define NUM_RX_DMA 4       /* Au1x00 has 4 rx hardware descriptors */
+#define NUM_TX_DMA 4       /* Au1x00 has 4 tx hardware descriptors */
+
+#define NUM_RX_BUFFS 4
+#define NUM_TX_BUFFS 4
+#define MAX_BUF_SIZE 2048
+
+#define ETH_TX_TIMEOUT HZ/4
+#define MAC_MIN_PKT_SIZE 64
+
+#define MULTICAST_FILTER_LIMIT 64
+
+/* FIXME 
+ * The PHY defines should be in a separate file.
+ */
+
+/* MII register offsets */
+#define	MII_CONTROL 0x0000
+#define MII_STATUS  0x0001
+#define MII_PHY_ID0 0x0002
+#define	MII_PHY_ID1 0x0003
+#define MII_ANADV   0x0004
+#define MII_ANLPAR  0x0005
+#define MII_AEXP    0x0006
+#define MII_ANEXT   0x0007
+#define MII_LSI_PHY_CONFIG 0x0011
+/* Status register */
+#define MII_LSI_PHY_STAT   0x0012
+#define MII_AMD_PHY_STAT   MII_LSI_PHY_STAT
+#define MII_INTEL_PHY_STAT 0x0011
+
+#define MII_AUX_CNTRL  0x0018
+/* mii registers specific to AMD 79C901 */
+#define	MII_STATUS_SUMMARY = 0x0018
+
+/* MII Control register bit definitions. */
+#define	MII_CNTL_FDX      0x0100
+#define MII_CNTL_RST_AUTO 0x0200
+#define	MII_CNTL_ISOLATE  0x0400
+#define MII_CNTL_PWRDWN   0x0800
+#define	MII_CNTL_AUTO     0x1000
+#define MII_CNTL_F100     0x2000
+#define	MII_CNTL_LPBK     0x4000
+#define MII_CNTL_RESET    0x8000
+
+/* MII Status register bit  */
+#define	MII_STAT_EXT        0x0001 
+#define MII_STAT_JAB        0x0002
+#define	MII_STAT_LINK       0x0004
+#define MII_STAT_CAN_AUTO   0x0008
+#define	MII_STAT_FAULT      0x0010 
+#define MII_STAT_AUTO_DONE  0x0020
+#define	MII_STAT_CAN_T      0x0800
+#define MII_STAT_CAN_T_FDX  0x1000
+#define	MII_STAT_CAN_TX     0x2000 
+#define MII_STAT_CAN_TX_FDX 0x4000
+#define	MII_STAT_CAN_T4     0x8000
+
+
+#define		MII_ID1_OUI_LO		0xFC00	/* low bits of OUI mask */
+#define		MII_ID1_MODEL		0x03F0	/* model number */
+#define		MII_ID1_REV		0x000F	/* model number */
+
+/* MII NWAY Register Bits ...
+   valid for the ANAR (Auto-Negotiation Advertisement) and
+   ANLPAR (Auto-Negotiation Link Partner) registers */
+#define	MII_NWAY_NODE_SEL 0x001f
+#define MII_NWAY_CSMA_CD  0x0001
+#define	MII_NWAY_T	  0x0020
+#define MII_NWAY_T_FDX    0x0040
+#define	MII_NWAY_TX       0x0080
+#define MII_NWAY_TX_FDX   0x0100
+#define	MII_NWAY_T4       0x0200 
+#define MII_NWAY_PAUSE    0x0400 
+#define	MII_NWAY_RF       0x2000 /* Remote Fault */
+#define MII_NWAY_ACK      0x4000 /* Remote Acknowledge */
+#define	MII_NWAY_NP       0x8000 /* Next Page (Enable) */
+
+/* mii stsout register bits */
+#define	MII_STSOUT_LINK_FAIL 0x4000
+#define	MII_STSOUT_SPD       0x0080
+#define MII_STSOUT_DPLX      0x0040
+
+/* mii stsics register bits */
+#define	MII_STSICS_SPD       0x8000
+#define MII_STSICS_DPLX      0x4000
+#define	MII_STSICS_LINKSTS   0x0001
+
+/* mii stssum register bits */
+#define	MII_STSSUM_LINK  0x0008
+#define MII_STSSUM_DPLX  0x0004
+#define	MII_STSSUM_AUTO  0x0002
+#define MII_STSSUM_SPD   0x0001
+
+/* lsi phy status register */
+#define MII_LSI_PHY_STAT_FDX	0x0040
+#define MII_LSI_PHY_STAT_SPD	0x0080
+
+/* amd phy status register */
+#define MII_AMD_PHY_STAT_FDX	0x0800
+#define MII_AMD_PHY_STAT_SPD	0x0400
+
+/* intel phy status register */
+#define MII_INTEL_PHY_STAT_FDX	0x0200
+#define MII_INTEL_PHY_STAT_SPD	0x4000
+
+/* Auxilliary Control/Status Register */
+#define MII_AUX_FDX      0x0001
+#define MII_AUX_100      0x0002
+#define MII_AUX_F100     0x0004
+#define MII_AUX_ANEG     0x0008
+
+typedef struct mii_phy {
+	struct mii_phy * next;
+	struct mii_chip_info * chip_info;
+	u16 status;
+	u32 *mii_control_reg;
+	u32 *mii_data_reg;
+} mii_phy_t;
+
+struct phy_ops {
+	int (*phy_init) (struct net_device *, int);
+	int (*phy_reset) (struct net_device *, int);
+	int (*phy_status) (struct net_device *, int, u16 *, u16 *);
+};
+
+/* 
+ * Data Buffer Descriptor. Data buffers must be aligned on 32 byte 
+ * boundary for both, receive and transmit.
+ */
+typedef struct db_dest {
+	struct db_dest *pnext;
+	volatile u32 *vaddr;
+	dma_addr_t dma_addr;
+} db_dest_t;
+
+/*
+ * The transmit and receive descriptors are memory 
+ * mapped registers.
+ */
+typedef struct tx_dma {
+	u32 status;
+	u32 buff_stat;
+	u32 len;
+	u32 pad;
+} tx_dma_t;
+
+typedef struct rx_dma {
+	u32 status;
+	u32 buff_stat;
+	u32 pad[2];
+} rx_dma_t;
+
+
+/*
+ * MAC control registers, memory mapped.
+ */
+typedef struct mac_reg {
+	u32 control;
+	u32 mac_addr_high;
+	u32 mac_addr_low;
+	u32 multi_hash_high;
+	u32 multi_hash_low;
+	u32 mii_control;
+	u32 mii_data;
+	u32 flow_control;
+	u32 vlan1_tag;
+	u32 vlan2_tag;
+} mac_reg_t;
+
+
+struct au1000_private {
+	
+	db_dest_t *pDBfree;
+	db_dest_t db[NUM_RX_BUFFS+NUM_TX_BUFFS];
+	volatile rx_dma_t *rx_dma_ring[NUM_RX_DMA];
+	volatile tx_dma_t *tx_dma_ring[NUM_TX_DMA];
+	db_dest_t *rx_db_inuse[NUM_RX_DMA];
+	db_dest_t *tx_db_inuse[NUM_TX_DMA];
+	u32 rx_head;
+	u32 tx_head;
+	u32 tx_tail;
+	u32 tx_full;
+
+	int mac_id;
+	mii_phy_t *mii;
+	struct phy_ops *phy_ops;
+	
+	/* These variables are just for quick access to certain regs addresses. */
+	volatile mac_reg_t *mac;  /* mac registers                      */   
+	volatile u32 *enable;     /* address of MAC Enable Register     */
+
+	u32 vaddr;                /* virtual address of rx/tx buffers   */
+	dma_addr_t dma_addr;      /* dma address of rx/tx buffers       */
+
+	u8 *hash_table;
+	u32 hash_mode;
+	u32 intr_work_done; /* number of Rx and Tx pkts processed in the isr */
+	int phy_addr;          /* phy address */
+	u32 options;           /* User-settable misc. driver options. */
+	u32 drv_flags;
+	int want_autoneg;
+	struct net_device_stats stats;
+	struct timer_list timer;
+	spinlock_t lock;       /* Serialise access to device */
+};