Annotation of sys/dev/pci/pciide_amd_reg.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: pciide_amd_reg.h,v 1.8 2004/09/24 07:38:38 grange Exp $ */
! 2: /* $NetBSD: pciide_amd_reg.h,v 1.2 2000/07/06 15:08:11 bouyer Exp $ */
! 3:
! 4: /*
! 5: * Copyright (c) 2000 David Sainty.
! 6: *
! 7: * Redistribution and use in source and binary forms, with or without
! 8: * modification, are permitted provided that the following conditions
! 9: * are met:
! 10: * 1. Redistributions of source code must retain the above copyright
! 11: * notice, this list of conditions and the following disclaimer.
! 12: * 2. Redistributions in binary form must reproduce the above copyright
! 13: * notice, this list of conditions and the following disclaimer in the
! 14: * documentation and/or other materials provided with the distribution.
! 15: * 3. All advertising materials mentioning features or use of this software
! 16: * must display the following acknowledgement:
! 17: * This product includes software developed by the University of
! 18: * California, Berkeley and its contributors.
! 19: * 4. Neither the name of the University nor the names of its contributors
! 20: * may be used to endorse or promote products derived from this software
! 21: * without specific prior written permission.
! 22: *
! 23: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 24: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 25: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 26: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 27: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 28: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 29: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 30: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 31: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 32: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 33: * SUCH DAMAGE.
! 34: *
! 35: */
! 36:
! 37: #ifndef _DEV_PCI_PCIIDE_AMD_REG_H_
! 38: #define _DEV_PCI_PCIIDE_AMD_REG_H_
! 39:
! 40: /*
! 41: * Registers definitions for AMD 756 PCI IDE controller. Documentation
! 42: * available at: http://www.amd.com/products/cpg/athlon/techdocs/pdf/22548.pdf
! 43: */
! 44:
! 45: /* Chip revisions */
! 46: #define AMD756_CHIPREV_D2 3
! 47:
! 48: /* Chip revision tests */
! 49:
! 50: /*
! 51: * The AMD756 chip revision D2 has a bug affecting DMA (but not UDMA)
! 52: * modes. The workaround documented by AMD is to not use DMA on any
! 53: * drive which does not support UDMA modes.
! 54: *
! 55: * See: http://www.amd.com/products/cpg/athlon/techdocs/pdf/22591.pdf
! 56: */
! 57: #define AMD756_CHIPREV_DISABLEDMA(product, rev) \
! 58: ((product) == PCI_PRODUCT_AMD_PBC756_IDE && (rev) <= AMD756_CHIPREV_D2)
! 59:
! 60: /* Channel enable */
! 61: #define AMD756_CHANSTATUS_EN 0x40
! 62: #define AMD756_CHAN_EN(chan) (0x01 << (1 - (chan)))
! 63: #define AMD756_CABLE(chan, drive) (0x00010000 << ((chan) * 2 + (drive)))
! 64:
! 65: /* Data port timing controls */
! 66: #define AMD756_DATATIM 0x48
! 67: #define AMD756_DATATIM_MASK(channel) (0xffff << ((1 - (channel)) << 4))
! 68: #define AMD756_DATATIM_RECOV(channel, drive, x) (((x) & 0xf) << \
! 69: (((1 - (channel)) << 4) + ((1 - (drive)) << 3)))
! 70: #define AMD756_DATATIM_PULSE(channel, drive, x) (((x) & 0xf) << \
! 71: (((1 - (channel)) << 4) + ((1 - (drive)) << 3) + 4))
! 72:
! 73: static const int8_t amd756_pio_set[] = {0x0a, 0x0a, 0x0a, 0x02, 0x02};
! 74: static const int8_t amd756_pio_rec[] = {0x08, 0x08, 0x08, 0x02, 0x00};
! 75:
! 76: /* Ultra-DMA/33 control */
! 77: #define AMD756_UDMA 0x50
! 78: #define AMD756_UDMA_MASK(channel) (0xffff << ((1 - (channel)) << 4))
! 79: #define AMD756_UDMA_TIME(channel, drive, x) (((x) & 0x7) << \
! 80: (((1 - (channel)) << 4) + ((1 - (drive)) << 3)))
! 81: #define AMD756_UDMA_EN(channel, drive) (0x40 << \
! 82: (((1 - (channel)) << 4) + ((1 - (drive)) << 3)))
! 83: #define AMD756_UDMA_EN_MTH(channel, drive) (0x80 << \
! 84: (((1 - (channel)) << 4) + ((1 - (drive)) << 3)))
! 85:
! 86: static const int8_t amd756_udma_tim[] =
! 87: {0x02, 0x01, 0x00, 0x04, 0x05, 0x06, 0x07};
! 88:
! 89: #endif /* !_DEV_PCI_PCIIDE_AMD_REG_H_ */
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