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-rw-r--r--sys/arch/sgi/hpc/hpcreg.h450
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diff --git a/sys/arch/sgi/hpc/hpcreg.h b/sys/arch/sgi/hpc/hpcreg.h
new file mode 100644
index 00000000000..bce6a2d2245
--- /dev/null
+++ b/sys/arch/sgi/hpc/hpcreg.h
@@ -0,0 +1,450 @@
+/* $OpenBSD: hpcreg.h,v 1.1 2012/03/28 20:44:23 miod Exp $ */
+/* $NetBSD: hpcreg.h,v 1.20 2011/01/25 12:21:04 tsutsui Exp $ */
+
+/*
+ * Copyright (c) 2001 Rafal K. Boni
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * HPC locations are identical across all HPC-supported
+ * platforms.
+ */
+#define HPC_BASE_ADDRESS_0 0x1fb80000 /* Primary onboard */
+#define HPC_BASE_ADDRESS_1 0x1fb00000
+#define HPC_BASE_ADDRESS_2 0x1f980000
+#define HPC_BASE_ADDRESS_3 0x1f900000 /* NB: Never supported in h/w */
+
+/*
+ * HPC3 descriptor layout.
+ */
+struct hpc_dma_desc {
+ uint32_t hdd_bufptr; /* Physical address of buffer */
+ uint32_t hdd_ctl; /* Control flags and byte count */
+ uint32_t hdd_descptr; /* Physical address of next descr. */
+ uint32_t hdd_pad; /* Pad out to quadword alignment */
+};
+
+/*
+ * The hdd_bufptr and hdd_ctl fields are swapped between HPC1 and
+ * HPC3. These fields are referenced by macro for readability.
+ */
+#define hpc1_hdd_ctl hdd_bufptr
+#define hpc1_hdd_bufptr hdd_ctl
+#define hpc3_hdd_ctl hdd_ctl
+#define hpc3_hdd_bufptr hdd_bufptr
+
+/*
+ * Control flags
+ */
+#define HPC3_HDD_CTL_EOCHAIN 0x80000000 /* End of descriptor chain */
+#define HPC3_HDD_CTL_EOPACKET 0x40000000 /* Ethernet: end of packet */
+#define HPC3_HDD_CTL_INTR 0x20000000 /* Interrupt when finished */
+#define HPC3_HDD_CTL_XMITDONE 0x00008000 /* Ethernet transmit done */
+#define HPC3_HDD_CTL_OWN 0x00004000 /* CPU owns this frame */
+
+#define HPC3_HDD_CTL_BYTECNT(x) ((x) & 0x3fff) /* Byte count: for ethernet
+ * rcv channel also doubles as
+ * length of packet received
+ */
+
+/*
+ * HPC memory map, as offsets from HPC base
+ *
+ * XXXrkb: should each section be used as a base and have the specific
+ * registers offset from there??
+ *
+ * XXX: define register values as well as their offsets.
+ *
+ */
+#define HPC3_PBUS_DMAREGS 0x00000000 /* DMA registers for PBus */
+#define HPC3_PBUS_DMAREGS_SIZE 0x0000ffff /* channels 0 - 7 */
+
+#define HPC3_PBUS_CH0_BP 0x00000000 /* Chan 0 Buffer Ptr */
+#define HPC3_PBUS_CH0_DP 0x00000004 /* Chan 0 Descriptor Ptr */
+#define HPC3_PBUS_CH0_CTL 0x00001000 /* Chan 0 Control Register */
+
+#define HPC3_PBUS_CH1_BP 0x00002000 /* Chan 1 Buffer Ptr */
+#define HPC3_PBUS_CH1_DP 0x00002004 /* Chan 1 Descriptor Ptr */
+#define HPC3_PBUS_CH1_CTL 0x00003000 /* Chan 1 Control Register */
+
+#define HPC3_PBUS_CH2_BP 0x00004000 /* Chan 2 Buffer Ptr */
+#define HPC3_PBUS_CH2_DP 0x00004004 /* Chan 2 Descriptor Ptr */
+#define HPC3_PBUS_CH2_CTL 0x00005000 /* Chan 2 Control Register */
+
+#define HPC3_PBUS_CH3_BP 0x00006000 /* Chan 3 Buffer Ptr */
+#define HPC3_PBUS_CH3_DP 0x00006004 /* Chan 3 Descriptor Ptr */
+#define HPC3_PBUS_CH3_CTL 0x00007000 /* Chan 3 Control Register */
+
+#define HPC3_PBUS_CH4_BP 0x00008000 /* Chan 4 Buffer Ptr */
+#define HPC3_PBUS_CH4_DP 0x00008004 /* Chan 4 Descriptor Ptr */
+#define HPC3_PBUS_CH4_CTL 0x00009000 /* Chan 4 Control Register */
+
+#define HPC3_PBUS_CH5_BP 0x0000a000 /* Chan 5 Buffer Ptr */
+#define HPC3_PBUS_CH5_DP 0x0000a004 /* Chan 5 Descriptor Ptr */
+#define HPC3_PBUS_CH5_CTL 0x0000b000 /* Chan 5 Control Register */
+
+#define HPC3_PBUS_CH6_BP 0x0000c000 /* Chan 6 Buffer Ptr */
+#define HPC3_PBUS_CH6_DP 0x0000c004 /* Chan 6 Descriptor Ptr */
+#define HPC3_PBUS_CH6_CTL 0x0000d000 /* Chan 6 Control Register */
+
+#define HPC3_PBUS_CH7_BP 0x0000e000 /* Chan 7 Buffer Ptr */
+#define HPC3_PBUS_CH7_DP 0x0000e004 /* Chan 7 Descriptor Ptr */
+#define HPC3_PBUS_CH7_CTL 0x0000f000 /* Chan 7 Control Register */
+
+#define HPC3_SCSI0_REGS 0x00010000 /* SCSI channel 0 registers */
+#define HPC3_SCSI0_REGS_SIZE 0x00001fff
+
+#define HPC3_SCSI0_CBP 0x00000000 /* Current buffer ptr */
+#define HPC3_SCSI0_NDBP 0x00000004 /* Next descriptor ptr */
+
+#define HPC3_SCSI0_BC 0x00001000 /* DMA byte count & flags */
+#define HPC3_SCSI0_CTL 0x00001004 /* DMA control flags */
+#define HPC3_SCSI0_GIO 0x00001008 /* GIO DMA FIFO pointer */
+#define HPC3_SCSI0_DEV 0x0000100c /* Device DMA FIFO pointer */
+#define HPC3_SCSI0_DMACFG 0x00001010 /* DMA configuration */
+#define HPC3_SCSI0_PIOCFG 0x00001014 /* PIO configuration */
+
+#define HPC3_SCSI1_REGS 0x00012000 /* SCSI channel 1 registers */
+#define HPC3_SCSI1_REGS_SIZE 0x00001fff
+
+#define HPC3_SCSI1_CBP 0x00000000 /* Current buffer ptr */
+#define HPC3_SCSI1_NDBP 0x00000004 /* Next descriptor ptr */
+
+#define HPC3_SCSI1_BC 0x00001000 /* DMA byte count & flags */
+#define HPC3_SCSI1_CTL 0x00001004 /* DMA control flags */
+#define HPC3_SCSI1_GIO 0x00001008 /* GIO DMA FIFO pointer */
+#define HPC3_SCSI1_DEV 0x0000100c /* Device DMA FIFO pointer */
+#define HPC3_SCSI1_DMACFG 0x00001010 /* DMA configuration */
+#define HPC3_SCSI1_PIOCFG 0x00001014 /* PIO configuration */
+
+/* HPC3_SCSIx_CTL "SCSI control register" flags: */
+#define HPC3_SCSI_DMACTL_IRQ 0x01 /* IRQ asserted, dma done or parity */
+#define HPC3_SCSI_DMACTL_ENDIAN 0x02 /* DMA endian mode, 0=BE, 1=LE */
+#define HPC3_SCSI_DMACTL_DIR 0x04 /* DMA direction, 0=dev->mem, 1=mem->dev */
+#define HPC3_SCSI_DMACTL_FLUSH 0x08 /* Flush DMA FIFO's */
+#define HPC3_SCSI_DMACTL_ACTIVE 0x10 /* DMA channel is active */
+#define HPC3_SCSI_DMACTL_AMASK 0x20 /* DMA active inhibits PIO */
+#define HPC3_SCSI_DMACTL_RESET 0x40 /* Reset dma channel and ext. controller */
+#define HPC3_SCSI_DMACTL_PERR 0x80 /* Parity error: interface to controller */
+
+/* HPC_PBUS_CHx_CTL read: */
+#define HPC3_PBUS_DMACTL_IRQ 0x01 /* IRQ asserted, DMA done */
+#define HPC3_PBUS_DMACTL_ISACT 0x02 /* DMA channel is active */
+
+/* HPC_PBUS_CHx_CTL write: */
+#define HPC3_PBUS_DMACTL_ENDIAN 0x02 /* DMA endianness, 0=BE 1=LE */
+#define HPC3_PBUS_DMACTL_RECEIVE 0x04 /* DMA direction, 1=dev->mem, 0=mem->dev*/
+#define HPC3_PBUS_DMACTL_FLUSH 0x08 /* Flush DMA FIFO */
+#define HPC3_PBUS_DMACTL_ACT 0x10 /* Activate DMA channel */
+#define HPC3_PBUS_DMACTL_ACT_LD 0x20 /* Load enable for ACT */
+#define HPC3_PBUS_DMACTL_RT 0x40 /* Enable real time GIO service for DMA */
+#define HPC3_PBUS_DMACTL_HIGHWATER_SHIFT 8
+#define HPC3_PBUS_DMACTL_FIFOBEG_SHIFT 16
+#define HPC3_PBUS_DMACTL_FIFOEND_SHIFT 24
+
+#define HPC3_ENET_REGS 0x00014000 /* Ethernet registers */
+#define HPC3_ENET_REGS_SIZE 0x00003fff
+
+#define HPC3_ENETR_CBP 0x00000000 /* Recv: Current buffer ptr */
+#define HPC3_ENETR_NDBP 0x00000004 /* Recv: Next descriptor ptr */
+
+#define HPC3_ENETR_BC 0x00001000 /* Recv: DMA byte cnt/flags */
+#define HPC3_ENETR_CTL 0x00001004 /* Recv: DMA control flags */
+
+#define HPC3_ENETR_CTL_STAT_5_0 0x003f /* Seeq irq status: bits 0-5 */
+#define HPC3_ENETR_CTL_STAT_6 0x0040 /* Irq status: late_rxdc */
+#define HPC3_ENETR_CTL_STAT_7 0x0080 /* Irq status: old/new bit */
+#define HPC3_ENETR_CTL_LENDIAN 0x0100 /* DMA channel endian mode */
+#define HPC3_ENETR_CTL_ACTIVE 0x0200 /* DMA channel active? */
+#define HPC3_ENETR_CTL_ACTIVE_MSK 0x0400 /* DMA channel active? */
+#define HPC3_ENETR_CTL_RBO 0x0800 /* Recv buffer overflow */
+
+#define HPC3_ENETR_GIO 0x00001008 /* Recv: GIO DMA FIFO ptr */
+#define HPC3_ENETR_DEV 0x0000100c /* Recv: Device DMA FIFO ptr */
+#define HPC3_ENETR_RESET 0x00001014 /* Recv: Ethernet chip reset */
+
+#define HPC3_ENETR_RESET_CH 0x0001 /* Reset controller & chan */
+#define HPC3_ENETR_RESET_CLRINT 0x0002 /* Clear channel interrupt */
+#define HPC3_ENETR_RESET_LOOPBK 0x0004 /* External loopback enable */
+#define HPC3_ENETR_RESET_CLRRBO 0x0008 /* Clear RBO condition (??) */
+
+#define HPC3_ENETR_DMACFG 0x00001018 /* Recv: DMA configuration */
+
+#define HPC3_ENETR_DMACFG_D1(_x) (((_x) << 0) & 0x000f) /* D1 gio_clk cycles */
+#define HPC3_ENETR_DMACFG_D2(_x) (((_x) << 4) & 0x00f0) /* D2 gio_clk cycles */
+#define HPC3_ENETR_DMACFG_D3(_x) (((_x) << 8) & 0x0f00) /* D3 gio_clk cycles */
+#define HPC3_ENETR_DMACFG_WRCTL 0x01000 /* Enable IPG write */
+
+/*
+ * The following three bits work around bugs in the Seeq 8003; if you
+ * don't set them, the Seeq gets wonky pretty often.
+ */
+#define HPC3_ENETR_DMACFG_FIX_RXDC 0x02000 /* Clear EOP bits on RXDC */
+#define HPC3_ENETR_DMACFG_FIX_EOP 0x04000 /* Enable rxintr timeout */
+#define HPC3_ENETR_DMACFG_FIX_INTR 0x08000 /* Enable EOP timeout */
+#define HPC3_ENETR_DMACFG_TIMEOUT 0x30000 /* Timeout value for above two*/
+
+#define HPC3_ENETR_PIOCFG 0x0000101c /* Recv: PIO configuration */
+
+#define HPC3_ENETR_PIOCFG_P1(_x) (((_x) << 0) & 0x000f) /* P1 gio_clk cycles */
+#define HPC3_ENETR_PIOCFG_P2(_x) (((_x) << 4) & 0x00f0) /* P2 gio_clk cycles */
+#define HPC3_ENETR_PIOCFG_P3(_x) (((_x) << 8) & 0x0f00) /* P3 gio_clk cycles */
+
+#define HPC3_ENETX_CBP 0x00002000 /* Xmit: Current buffer ptr */
+#define HPC3_ENETX_NDBP 0x00002004 /* Xmit: Next descriptor ptr */
+
+#define HPC3_ENETX_BC 0x00003000 /* Xmit: DMA byte cnt/flags */
+#define HPC3_ENETX_CTL 0x00003004 /* Xmit: DMA control flags */
+
+#define HPC3_ENETX_CTL_STAT_5_0 0x003f /* Seeq irq status: bits 0-5 */
+#define HPC3_ENETX_CTL_STAT_6 0x0040 /* Irq status: late_rxdc */
+#define HPC3_ENETX_CTL_STAT_7 0x0080 /* Irq status: old/new bit */
+#define HPC3_ENETX_CTL_LENDIAN 0x0100 /* DMA channel endian mode */
+#define HPC3_ENETX_CTL_ACTIVE 0x0200 /* DMA channel active? */
+#define HPC3_ENETX_CTL_ACTIVE_MSK 0x0400 /* DMA channel active? */
+#define HPC3_ENETX_CTL_RBO 0x0800 /* Recv buffer overflow */
+
+#define HPC3_ENETX_GIO 0x00003008 /* Xmit: GIO DMA FIFO ptr */
+#define HPC3_ENETX_DEV 0x0000300c /* Xmit: Device DMA FIFO ptr */
+
+#define HPC3_PBUS_FIFO 0x00020000 /* PBus DMA FIFO */
+#define HPC3_PBUS_FIFO_SIZE 0x00007fff /* PBus DMA FIFO size */
+
+#define HPC3_SCSI0_FIFO 0x00028000 /* SCSI0 DMA FIFO */
+#define HPC3_SCSI0_FIFO_SIZE 0x00001fff /* SCSI0 DMA FIFO size */
+
+#define HPC3_SCSI1_FIFO 0x0002a000 /* SCSI1 DMA FIFO */
+#define HPC3_SCSI1_FIFO_SIZE 0x00001fff /* SCSI1 DMA FIFO size */
+
+#define HPC3_ENETR_FIFO 0x0002c000 /* Ether recv DMA FIFO */
+#define HPC3_ENETR_FIFO_SIZE 0x00001fff /* Ether recv DMA FIFO size */
+
+#define HPC3_ENETX_FIFO 0x0002e000 /* Ether xmit DMA FIFO */
+#define HPC3_ENETX_FIFO_SIZE 0x00001fff /* Ether xmit DMA FIFO size */
+
+/*
+ * HPCBUG: The interrupt status is split amongst two registers, and they're
+ * not even consecutive in the HPC address space. This is documented as a
+ * bug by SGI.
+ */
+#define HPC3_INTRSTAT_40 0x00030000 /* Interrupt stat, bits 4:0 */
+#define HPC3_INTRSTAT_95 0x0003000c /* Interrupt stat, bits 9:5 */
+
+#define HPC3_GIO_MISC 0x00030004 /* GIO64 misc register */
+
+#define HPC3_EEPROM_DATA 0x0003000b /* Serial EEPROM data reg. */
+ /* (byte) */
+
+#define HPC3_GIO_BUSERR 0x00030010 /* GIO64 bus error intr stat */
+
+#define HPC3_SCSI0_DEVREGS 0x00044000 /* SCSI channel 0 chip regs */
+#define HPC3_SCSI1_DEVREGS 0x0004c000 /* SCSI channel 1 chip regs */
+
+#define HPC3_ENET_DEVREGS 0x00054000 /* Ethernet chip registers */
+#define HPC3_ENET_DEVREGS_SIZE 0x000004ff /* Size of chip registers */
+
+#define HPC3_PBUS_DEVREGS 0x00054000 /* PBus PIO chip registers */
+#define HPC3_PBUS_DEVREGS_SIZE 0x000003ff /* PBus PIO chip registers */
+
+#define HPC3_PBUS_CH0_DEVREGS 0x00058000 /* PBus ch. 0 chip registers */
+#define HPC3_PBUS_CH0_DEVREGS_SIZE 0x03ff
+
+#define HPC3_PBUS_CH1_DEVREGS 0x00058400 /* PBus ch. 1 chip registers */
+#define HPC3_PBUS_CH1_DEVREGS_SIZE 0x03ff
+
+#define HPC3_PBUS_CH2_DEVREGS 0x00058800 /* PBus ch. 2 chip registers */
+#define HPC3_PBUS_CH2_DEVREGS_SIZE 0x03ff
+
+#define HPC3_PBUS_CH3_DEVREGS 0x00058c00 /* PBus ch. 3 chip registers */
+#define HPC3_PBUS_CH3_DEVREGS_SIZE 0x03ff
+
+#define HPC3_PBUS_CH4_DEVREGS 0x00059000 /* PBus ch. 4 chip registers */
+#define HPC3_PBUS_CH4_DEVREGS_SIZE 0x03ff
+
+#define HPC3_PBUS_CH5_DEVREGS 0x00059400 /* PBus ch. 5 chip registers */
+#define HPC3_PBUS_CH5_DEVREGS_SIZE 0x03ff
+
+#define HPC3_PBUS_CH6_DEVREGS 0x00059800 /* PBus ch. 6 chip registers */
+#define HPC3_PBUS_CH6_DEVREGS_SIZE 0x03ff
+
+#define HPC3_PBUS_CH7_DEVREGS 0x00059c00 /* PBus ch. 7 chip registers */
+#define HPC3_PBUS_CH7_DEVREGS_SIZE 0x03ff
+
+#define HPC3_PBUS_CH8_DEVREGS 0x0005a000 /* PBus ch. 8 chip registers */
+#define HPC3_PBUS_CH8_DEVREGS_SIZE 0x03ff
+
+#define HPC3_PBUS_CH9_DEVREGS 0x0005a400 /* PBus ch. 9 chip registers */
+#define HPC3_PBUS_CH9_DEVREGS_SIZE 0x03ff
+
+#define HPC3_PBUS_CH8_DEVREGS_2 0x0005a800 /* PBus ch. 8 chip registers */
+#define HPC3_PBUS_CH8_DEVREGS_2_SIZE 0x03ff
+
+#define HPC3_PBUS_CH9_DEVREGS_2 0x0005ac00 /* PBus ch. 9 chip registers */
+#define HPC3_PBUS_CH9_DEVREGS_2_SIZE 0x03ff
+
+#define HPC3_PBUS_CH8_DEVREGS_3 0x0005b000 /* PBus ch. 8 chip registers */
+#define HPC3_PBUS_CH8_DEVREGS_3_SIZE 0x03ff
+
+#define HPC3_PBUS_CH9_DEVREGS_3 0x0005b400 /* PBus ch. 9 chip registers */
+#define HPC3_PBUS_CH9_DEVREGS_3_SIZE 0x03ff
+
+#define HPC3_PBUS_CH8_DEVREGS_4 0x0005b800 /* PBus ch. 8 chip registers */
+#define HPC3_PBUS_CH8_DEVREGS_4_SIZE 0x03ff
+
+#define HPC3_PBUS_CH9_DEVREGS_4 0x0005bc00 /* PBus ch. 9 chip registers */
+#define HPC3_PBUS_CH9_DEVREGS_4_SIZE 0x03ff
+
+#define HPC3_PBUS_CFGDMA_REGS 0x0005c000 /* PBus DMA config registers */
+#define HPC3_PBUS_CFGDMA_REGS_SIZE 0x0fff
+
+#define HPC3_PBUS_CH0_CFGDMA 0x0005c000 /* PBus Ch. 0 DMA config */
+#define HPC3_PBUS_CH0_CFGDMA_SIZE 0x01ff
+
+#define HPC3_PBUS_CH1_CFGDMA 0x0005c200 /* PBus Ch. 1 DMA config */
+#define HPC3_PBUS_CH1_CFGDMA_SIZE 0x01ff
+
+#define HPC3_PBUS_CH2_CFGDMA 0x0005c400 /* PBus Ch. 2 DMA config */
+#define HPC3_PBUS_CH2_CFGDMA_SIZE 0x01ff
+
+#define HPC3_PBUS_CH3_CFGDMA 0x0005c600 /* PBus Ch. 3 DMA config */
+#define HPC3_PBUS_CH3_CFGDMA_SIZE 0x01ff
+
+#define HPC3_PBUS_CH4_CFGDMA 0x0005c800 /* PBus Ch. 4 DMA config */
+#define HPC3_PBUS_CH4_CFGDMA_SIZE 0x01ff
+
+#define HPC3_PBUS_CH5_CFGDMA 0x0005ca00 /* PBus Ch. 5 DMA config */
+#define HPC3_PBUS_CH5_CFGDMA_SIZE 0x01ff
+
+#define HPC3_PBUS_CH6_CFGDMA 0x0005cc00 /* PBus Ch. 6 DMA config */
+#define HPC3_PBUS_CH6_CFGDMA_SIZE 0x01ff
+
+#define HPC3_PBUS_CH7_CFGDMA 0x0005ce00 /* PBus Ch. 7 DMA config */
+#define HPC3_PBUS_CH7_CFGDMA_SIZE 0x01ff
+
+#define HPC3_PBUS_CFGPIO_REGS 0x0005d000 /* PBus PIO config registers */
+#define HPC3_PBUS_CFGPIO_REGS_SIZE 0x0fff
+
+#define HPC3_PBUS_CH0_CFGPIO 0x0005d000 /* PBus Ch. 0 PIO config */
+#define HPC3_PBUS_CH1_CFGPIO 0x0005d100 /* PBus Ch. 1 PIO config */
+#define HPC3_PBUS_CH2_CFGPIO 0x0005d200 /* PBus Ch. 2 PIO config */
+#define HPC3_PBUS_CH3_CFGPIO 0x0005d300 /* PBus Ch. 3 PIO config */
+#define HPC3_PBUS_CH4_CFGPIO 0x0005d400 /* PBus Ch. 4 PIO config */
+#define HPC3_PBUS_CH5_CFGPIO 0x0005d500 /* PBus Ch. 5 PIO config */
+#define HPC3_PBUS_CH6_CFGPIO 0x0005d600 /* PBus Ch. 6 PIO config */
+#define HPC3_PBUS_CH7_CFGPIO 0x0005d700 /* PBus Ch. 7 PIO config */
+#define HPC3_PBUS_CH8_CFGPIO 0x0005d800 /* PBus Ch. 8 PIO config */
+#define HPC3_PBUS_CH9_CFGPIO 0x0005d900 /* PBus Ch. 9 PIO config */
+#define HPC3_PBUS_CH8_CFGPIO_2 0x0005da00 /* PBus Ch. 8 PIO config */
+#define HPC3_PBUS_CH9_CFGPIO_2 0x0005db00 /* PBus Ch. 9 PIO config */
+#define HPC3_PBUS_CH8_CFGPIO_3 0x0005dc00 /* PBus Ch. 8 PIO config */
+#define HPC3_PBUS_CH9_CFGPIO_3 0x0005dd00 /* PBus Ch. 9 PIO config */
+#define HPC3_PBUS_CH8_CFGPIO_4 0x0005de00 /* PBus Ch. 8 PIO config */
+#define HPC3_PBUS_CH9_CFGPIO_4 0x0005df00 /* PBus Ch. 9 PIO config */
+
+#define HPC3_PBUS_PROM_WE 0x0005e000 /* PBus boot-prom write
+ * enable register
+ */
+
+#define HPC3_PBUS_PROM_SWAP 0x0005e800 /* PBus boot-prom chip-select
+ * swap register
+ */
+
+#define HPC3_PBUS_GEN_OUT 0x0005f000 /* PBus general-purpose output
+ * register
+ */
+
+#define HPC3_PBUS_BBRAM 0x00060000 /* PBus battery-backed RAM
+ * external registers
+ */
+
+/* HPC1/HPC1.5 differs from HPC3 in several details. */
+
+#define HPC1_HDD_CTL_EOCHAIN 0x80000000 /* End of descriptor chain */
+#define HPC1_HDD_CTL_EOPACKET 0x80000000 /* Ethernet: end of packet */
+#define HPC1_HDD_CTL_INTR 0x00008000 /* Interrupt when finished */
+#define HPC1_HDD_CTL_OWN 0x40000000 /* CPU owns this frame */
+#define HPC1_HDD_CTL_BYTECNT(x) ((x) & 0x1fff) /* Byte count: for ethernet */
+#define HPC1_BIGENDIAN 0x000000c0 /* Endianness:5 revision:2 */
+#define HPC1_REVSHIFT 0x00000006 /* Revision rshft */
+#define HPC1_REVMASK 0x00000003 /* Revision mask */
+#define HPC1_REV15 0x00000001 /* HPC Revision 1.5 */
+#define HPC1_SCSI0_REGS 0x00000088
+#define HPC1_SCSI0_REGS_SIZE 0x00000018
+#define HPC1_SCSI0_CBP 0x00000004 /* Current buffer ptr */
+#define HPC1_SCSI0_NDBP 0x00000008 /* Next descriptor ptr */
+#define HPC1_SCSI0_BC 0x00000000 /* DMA byte count & flags */
+#define HPC1_SCSI0_CTL 0x0000000c /* DMA control flags */
+#define HPC1_SCSI0_DEV 0x00000014 /* Device DMA FIFO pointer */
+#define HPC1_SCSI0_DMACFG 0x00000010 /* DMA configuration */
+#define HPC1_SCSI0_GIO 0x00001008 /* GIO DMA FIFO pointer */
+#define HPC1_SCSI0_PIOCFG 0x00001014 /* PIO configuration */
+#define HPC1_SCSI_DMACTL_RESET 0x01 /* Reset dma channel and ext. controller */
+#define HPC1_SCSI_DMACTL_FLUSH 0x02 /* Flush DMA FIFO's */
+#define HPC1_SCSI_DMACTL_DIR 0x10 /* DMA direction: 1=dev->mem, 0=mem->dev */
+#define HPC1_SCSI_DMACTL_ACTIVE 0x80 /* DMA channel is active */
+#define HPC1_ENET_REGS 0x00000000 /* Ethernet registers */
+#define HPC1_ENET_REGS_SIZE 0x00000100
+#define HPC1_ENET_INTDELAY 0x0000002c /* Interrupt Delay Count */
+#define HPC1_ENET_INTDELAY_OFF 0x01000000 /* Disable Interrupt Delay */
+#define HPC1_ENETR_CBP 0x00000054 /* Recv: Current buffer ptr */
+#define HPC1_ENETR_NDBP 0x00000050 /* Recv: Next descriptor ptr */
+#define HPC1_ENETR_BC 0x00000048 /* Recv: DMA byte cnt/flags */
+#define HPC1_ENETR_CTL 0x00000038 /* Recv: DMA control flags */
+#define HPC1_ENETR_CTL_ACTIVE 0x00004000 /* DMA channel active? */
+#define HPC1_ENETR_RESET 0x0000003c /* Recv: Ethernet chip reset */
+#define HPC1_ENETR_RESET_CH 0x0001 /* Reset controller & chan */
+#define HPC1_ENETR_RESET_CLRINT 0x0002 /* Clear channel interrupt */
+#define HPC1_ENETR_RESET_LOOPBK 0x0004 /* External loopback enable */
+#define HPC1_ENETR_RESET_CLRRBO 0x0008 /* Clear RBO condition (??) */
+#define HPC1_ENETX_CBP 0x00000020 /* Xmit: Current buffer ptr */
+#define HPC1_ENETX_NDBP 0x00000010 /* Xmit: Next descriptor ptr */
+#define HPC1_ENETX_CFXBP 0x00000024 /* Xmit: Current first buf */
+#define HPC1_ENETX_PFXBP 0x00000028 /* Xmit: Prev. first buf */
+#define HPC1_ENETX_BC 0x00000014 /* Xmit: DMA byte cnt/flags */
+#define HPC1_ENETX_CTL 0x00000034 /* Xmit: DMA control flags */
+#define HPC1_ENETX_CTL_ACTIVE 0x00400000
+#define HPC1_ENETR_FIFO 0x0002c000 /* Ether recv DMA FIFO */
+#define HPC1_ENETR_FIFO_SIZE 0x00001fff /* Ether recv DMA FIFO size */
+#define HPC1_ENETX_FIFO 0x0002e000 /* Ether xmit DMA FIFO */
+#define HPC1_ENETX_FIFO_SIZE 0x00001fff /* Ether xmit DMA FIFO size */
+#define HPC1_SCSI0_DEVREGS 0x0000011f /* (actually 122) */
+#define HPC1_ENET_DEVREGS 0x00000100 /* Ethernet chip registers */
+#define HPC1_ENET_DEVREGS_SIZE 0x00000020 /* Size of chip registers */
+#define HPC1_PBUS_BBRAM 0x00000e00 /* PBus battery-backed RAM */
+#define HPC1_LPT_REGS 0x000000a8 /* LPT HPC Registers */
+#define HPC1_LPT_REGS_SIZE 0x00000018
+#define HPC1_LPT_BC 0x00000000 /* Byte Count */
+#define HPC1_LPT_CBP 0x00000004 /* Current Buffer Ptr */
+#define HPC1_LPT_NDBP 0x00000008 /* Next Buffer Ptr */
+#define HPC1_LPT_CTL 0x0000000c /* DMA Control Flags */
+#define HPC1_LPT_DEV 0x00000010 /* DMA Fifo Ptr */
+#define HPC1_LPT_DMACFG 0x00000014 /* DMA Configuration */
+#define HPC1_LPT_DEVREGS 0x00000132 /* Ext. Parallel Registers */
+#define HPC1_LPT_DEVREGS_SIZE 0x00000001 /* Size of External Registers */
+
+/* AUX regs on the primary HPC */
+#define HPC1_AUX_REGS 0x000001bf /* EEPROM/LED Control (byte) */
+#define HPC1_AUX_CONSLED 0x01 /* Console LED */