Merge with 2.3.19.

1 files changed, 265 insertions, 0 deletions

diff --git a/drivers/atm/midway.h b/drivers/atm/midway.h
new file mode 100644
index 000000000..432525ad5
--- /dev/null
+++ b/drivers/atm/midway.h
@@ -0,0 +1,265 @@
+/* drivers/atm/midway.h - Efficient Networks Midway (SAR) description */
+ 
+/* Written 1995-1999 by Werner Almesberger, EPFL LRC/ICA */
+ 
+
+#ifndef DRIVERS_ATM_MIDWAY_H
+#define DRIVERS_ATM_MIDWAY_H
+
+
+#define NR_VCI		1024		/* number of VCIs */
+#define NR_VCI_LD	10		/* log2(NR_VCI) */
+#define NR_DMA_RX	512		/* RX DMA queue entries */
+#define NR_DMA_TX	512		/* TX DMA queue entries */
+#define NR_SERVICE	NR_VCI		/* service list size */
+#define NR_CHAN		8		/* number of TX channels */
+#define TS_CLOCK	25000000	/* traffic shaper clock (cell/sec) */
+
+#define MAP_MAX_SIZE	0x00400000	/* memory window for max config */
+#define EPROM_SIZE	0x00010000
+#define	MEM_VALID	0xffc00000	/* mask base address with this */
+#define PHY_BASE	0x00020000	/* offset of PHY register are */
+#define REG_BASE	0x00040000	/* offset of Midway register area */
+#define RAM_BASE	0x00200000	/* offset of RAM area */
+#define RAM_INCREMENT	0x00020000	/* probe for RAM every 128kB */
+
+#define MID_VCI_BASE	RAM_BASE
+#define MID_DMA_RX_BASE	(MID_VCI_BASE+NR_VCI*16)
+#define MID_DMA_TX_BASE	(MID_DMA_RX_BASE+NR_DMA_RX*8)
+#define MID_SERVICE_BASE (MID_DMA_TX_BASE+NR_DMA_TX*8)
+#define MID_FREE_BASE	(MID_SERVICE_BASE+NR_SERVICE*4)
+
+#define MAC_LEN 6 /* atm.h */
+
+#define MID_MIN_BUF_SIZE (1024)		/*   1 kB is minimum */
+#define MID_MAX_BUF_SIZE (128*1024)	/* 128 kB is maximum */
+
+#define RX_DESCR_SIZE	1		/* RX PDU descr is 1 longword */
+#define TX_DESCR_SIZE	2		/* TX PDU descr is 2 longwords */
+#define AAL5_TRAILER	(ATM_AAL5_TRAILER/4) /* AAL5 trailer is 2 longwords */
+
+#define TX_GAP		8		/* TX buffer gap (words) */
+
+/*
+ * Midway Reset/ID
+ *
+ * All values read-only. Writing to this register resets Midway chip.
+ */
+
+#define MID_RES_ID_MCON	0x00		/* Midway Reset/ID */
+
+#define MID_ID		0xf0000000	/* Midway version */
+#define MID_SHIFT	24
+#define MID_MOTHER_ID	0x00000700	/* mother board id */
+#define MID_MOTHER_SHIFT 8
+#define MID_CON_TI	0x00000080	/* 0: normal ctrl; 1: SABRE */
+#define MID_CON_SUNI	0x00000040	/* 0: UTOPIA; 1: SUNI */
+#define MID_CON_V6	0x00000020	/* 0: non-pipel UTOPIA (required iff
+					   !CON_SUNI; 1: UTOPIA */
+#define DAUGTHER_ID	0x0000001f	/* daugther board id */
+
+/*
+ * Interrupt Status Acknowledge, Interrupt Status & Interrupt Enable
+ */
+
+#define MID_ISA		0x01		/* Interrupt Status Acknowledge */
+#define MID_IS		0x02		/* Interrupt Status */
+#define MID_IE		0x03		/* Interrupt Enable */
+
+#define MID_TX_COMPLETE_7 0x00010000	/* channel N completed a PDU */
+#define MID_TX_COMPLETE_6 0x00008000	/* transmission */
+#define MID_TX_COMPLETE_5 0x00004000
+#define MID_TX_COMPLETE_4 0x00002000
+#define MID_TX_COMPLETE_3 0x00001000
+#define MID_TX_COMPLETE_2 0x00000800
+#define MID_TX_COMPLETE_1 0x00000400
+#define MID_TX_COMPLETE_0 0x00000200
+#define MID_TX_COMPLETE	0x0001fe00	/* any TX */
+#define MID_TX_DMA_OVFL	0x00000100	/* DMA to adapter overflow */
+#define MID_TX_IDENT_MISM 0x00000080	/* TX: ident mismatch => halted */
+#define MID_DMA_LERR_ACK 0x00000040	/* LERR - SBus ? */
+#define MID_DMA_ERR_ACK	0x00000020	/* DMA error */
+#define	MID_RX_DMA_COMPLETE 0x00000010	/* DMA to host done */
+#define MID_TX_DMA_COMPLETE 0x00000008	/* DMA from host done */
+#define MID_SERVICE	0x00000004	/* something in service list */
+#define MID_SUNI_INT	0x00000002	/* interrupt from SUNI */
+#define MID_STAT_OVFL	0x00000001	/* statistics overflow */
+
+/*
+ * Master Control/Status
+ */
+
+#define MID_MC_S	0x04
+
+#define MID_INT_SELECT	0x000001C0	/* Interrupt level (000: off) */
+#define MID_INT_SEL_SHIFT 6
+#define	MID_TX_LOCK_MODE 0x00000020	/* 0: streaming; 1: TX ovfl->lock */
+#define MID_DMA_ENABLE	0x00000010	/* R: 0: disable; 1: enable
+					   W: 0: no change; 1: enable */
+#define MID_TX_ENABLE	0x00000008	/* R: 0: TX disabled; 1: enabled
+					   W: 0: no change; 1: enable */
+#define MID_RX_ENABLE	0x00000004	/* like TX */
+#define MID_WAIT_1MS	0x00000002	/* R: 0: timer not running; 1: running
+					   W: 0: no change; 1: no interrupts
+							       for 1 ms */
+#define MID_WAIT_500US	0x00000001	/* like WAIT_1MS, but 0.5 ms */
+
+/*
+ * Statistics
+ *
+ * Cleared when reading.
+ */
+
+#define MID_STAT		0x05
+
+#define MID_VCI_TRASH	0xFFFF0000	/* trashed cells because of VCI mode */
+#define MID_VCI_TRASH_SHIFT 16
+#define MID_OVFL_TRASH	0x0000FFFF	/* trashed cells because of overflow */
+
+/*
+ * Address registers
+ */
+
+#define MID_SERV_WRITE	0x06	/* free pos in service area (R, 10 bits) */
+#define MID_DMA_ADDR	0x07	/* virtual DMA address (R, 32 bits) */
+#define MID_DMA_WR_RX	0x08	/* (RW, 9 bits) */
+#define MID_DMA_RD_RX	0x09
+#define MID_DMA_WR_TX	0x0A
+#define MID_DMA_RD_TX	0x0B
+
+/*
+ * Transmit Place Registers (0x10+4*channel)
+ */
+
+#define MID_TX_PLACE(c)	(0x10+4*(c))
+
+#define MID_SIZE	0x00003800	/* size, N*256 x 32 bit */
+#define MID_SIZE_SHIFT	11
+#define MID_LOCATION	0x000007FF	/* location in adapter memory (word) */
+
+#define MID_LOC_SKIP	8		/* 8 bits of location are always zero
+					   (applies to all uses of location) */
+
+/*
+ * Transmit ReadPtr Registers (0x11+4*channel)
+ */
+
+#define MID_TX_RDPTR(c)	(0x11+4*(c))
+
+#define MID_READ_PTR	0x00007FFF	/* next word for PHY */
+
+/*
+ * Transmit DescrStart Registers (0x12+4*channel)
+ */
+
+#define MID_TX_DESCRSTART(c) (0x12+4*(c))
+
+#define MID_DESCR_START	0x00007FFF	/* seg buffer being DMAed */
+
+#define ENI155_MAGIC	0xa54b872d
+
+struct midway_eprom {
+	unsigned char mac[MAC_LEN],inv_mac[MAC_LEN];
+	unsigned char pad[36];
+	u32 serial,inv_serial;
+	u32 magic,inv_magic;
+};
+
+
+/*
+ * VCI table entry
+ */
+
+#define MID_VCI_IN_SERVICE	0x00000001	/* set if VCI is currently in
+						   service list */
+#define MID_VCI_SIZE		0x00038000	/* reassembly buffer size,
+						   2*<size> kB */
+#define MID_VCI_SIZE_SHIFT	15
+#define MID_VCI_LOCATION	0x1ffc0000	/* buffer location */
+#define MID_VCI_LOCATION_SHIFT	18
+#define MID_VCI_PTI_MODE	0x20000000	/* 0: trash, 1: preserve */
+#define MID_VCI_MODE		0xc0000000
+#define MID_VCI_MODE_SHIFT	30
+#define MID_VCI_READ		0x00007fff
+#define MID_VCI_READ_SHIFT	0
+#define MID_VCI_DESCR		0x7fff0000
+#define MID_VCI_DESCR_SHIFT	16
+#define MID_VCI_COUNT		0x000007ff
+#define MID_VCI_COUNT_SHIFT	0
+#define MID_VCI_STATE		0x0000c000
+#define MID_VCI_STATE_SHIFT	14
+#define MID_VCI_WRITE		0x7fff0000
+#define MID_VCI_WRITE_SHIFT	16
+
+#define MID_MODE_TRASH	0
+#define MID_MODE_RAW	1
+#define MID_MODE_AAL5	2
+
+/*
+ * Reassembly buffer descriptor
+ */
+
+#define MID_RED_COUNT		0x000007ff
+#define MID_RED_CRC_ERR		0x00000800
+#define MID_RED_T		0x00001000
+#define MID_RED_CE		0x00010000
+#define MID_RED_CLP		0x01000000
+#define MID_RED_IDEN		0xfe000000
+#define MID_RED_SHIFT		25
+
+#define MID_RED_RX_ID		0x1b		/* constant identifier */
+
+/*
+ * Segmentation buffer descriptor
+ */
+
+#define MID_SEG_COUNT		MID_RED_COUNT
+#define MID_SEG_RATE		0x01f80000
+#define MID_SEG_RATE_SHIFT	19
+#define MID_SEG_PR		0x06000000
+#define MID_SEG_PR_SHIFT	25
+#define MID_SEG_AAL5		0x08000000
+#define MID_SEG_ID		0xf0000000
+#define MID_SEG_ID_SHIFT	28
+#define MID_SEG_MAX_RATE	63
+
+#define MID_SEG_CLP		0x00000001
+#define MID_SEG_PTI		0x0000000e
+#define MID_SEG_PTI_SHIFT	1
+#define MID_SEG_VCI		0x00003ff0
+#define MID_SEG_VCI_SHIFT	4
+
+#define MID_SEG_TX_ID		0xb		/* constant identifier */
+
+/*
+ * DMA entry
+ */
+
+#define MID_DMA_COUNT		0xffff0000
+#define MID_DMA_COUNT_SHIFT	16
+#define MID_DMA_END		0x00000020
+#define MID_DMA_TYPE		0x0000000f
+
+#define MID_DT_JK	0x3
+#define MID_DT_WORD	0x0
+#define MID_DT_2W	0x7
+#define MID_DT_4W	0x4
+#define MID_DT_8W	0x5
+#define MID_DT_16W	0x6
+#define MID_DT_2WM	0xf
+#define MID_DT_4WM	0xc
+#define MID_DT_8WM	0xd
+#define MID_DT_16WM	0xe
+
+/* only for RX*/
+#define MID_DMA_VCI		0x0000ffc0
+#define	MID_DMA_VCI_SHIFT	6
+
+/* only for TX */
+#define MID_DMA_CHAN		0x000001c0
+#define MID_DMA_CHAN_SHIFT	6
+
+#define MID_DT_BYTE	0x1
+#define MID_DT_HWORD	0x2
+
+#endif