1 /* $NetBSD: pciide_sl82c105_reg.h,v 1.6 2008/04/28 20:23:55 martin Exp $ */ 2 3 /*- 4 * Copyright (c) 2002 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * Register definitions for the Symphony Labs 82C105 PCI IDE 34 * interface. This 82C105 is also found embedded in the Winbond 35 * 83C553 Southbridge. 36 */ 37 38 /* PCI configuration space registers */ 39 40 #define SYMPH_PORT0_P (PCI_MAPREG_START + 0x00) /* port 0 primary */ 41 #define SYMPH_PORT0_S (PCI_MAPREG_START + 0x04) /* port 0 secondary */ 42 #define SYMPH_PORT1_P (PCI_MAPREG_START + 0x08) /* port 1 primary */ 43 #define SYMPH_PORT1_S (PCI_MAPREG_START + 0x0c) /* port 1 secondary */ 44 #define SYMPH_BMIDER (PCI_MAPREG_START + 0x10) /* bus master regs */ 45 46 #define SYMPH_IDECSR 0x40 /* IDE control/status */ 47 #define SYMPH_P0D0CR 0x44 /* port 0 drive 0 control */ 48 #define SYMPH_P0D1CR 0x48 /* port 0 drive 1 control */ 49 #define SYMPH_P1D0CR 0x4c /* port 1 drive 0 control */ 50 #define SYMPH_P1D1CR 0x50 /* port 1 drive 1 control */ 51 52 #define IDECR_IDE_IRQB (1U << 30) /* IDE_IRQB signal */ 53 #define IDECR_IDE_IRQA (1U << 28) /* IDE_IRQA signal */ 54 #define IDECR_RA_SHIFT 16 /* read-ahead duration */ 55 #define IDECR_RA_MASK (0x7ff << IDECR_RA_SHIFT) 56 #define IDECR_LEGIRQ (1U << 11) /* don't use legacy IRQ mode */ 57 #define IDECR_P1F16 (1U << 5) /* port 1 fast 16 */ 58 #define IDECR_P1EN (1U << 4) /* port 1 enable */ 59 #define IDECR_P0F16 (1U << 1) /* port 0 fast 16 */ 60 #define IDECR_P0EN (1U << 0) /* port 0 enable */ 61 62 #define PxDx_USR_SHIFT 16 /* user defined bits */ 63 #define PxDx_USR_MASK (0xff << PxDx_USR_SHIFT) 64 #define PxDx_CMD_ON_SHIFT 8 /* CMD ON time */ 65 #define PxDx_CMD_ON_MASK (0x1f << PxDx_CMD_ON_SHIFT) 66 #define PxDx_PWEN (1U << 7) /* posted write enable */ 67 #define PxDx_RDYEN (1U << 6) /* IOCHRDY enable */ 68 #define PxDx_RAEN (1U << 5) /* read-ahead enable */ 69 #define PxDx_CMD_OFF_MASK (0x1f) /* CMD OFF time */ 70 71 /* 72 * IDE CMD ON and CMD OFF times for a 33MHz PCI bus clock. 73 * 74 * These come from Table 4-4 of the 83c553 manual. 75 */ 76 struct symph_cmdtime { 77 int cmd_on; /* cmd on time */ 78 int cmd_off; /* cmd off time */ 79 }; 80 81 static const struct symph_cmdtime symph_pio_times[] 82 __unused = { 83 /* programmed actual */ 84 { 5, 13 }, /* 6, 14 */ 85 { 4, 7 }, /* 5, 8 */ 86 { 3, 4 }, /* 4, 5 */ 87 { 2, 2 }, /* 3, 3 */ 88 { 2, 0 }, /* 3, 1 */ 89 { 1, 0 }, /* 2, 1 */ 90 }; 91 92 static const struct symph_cmdtime symph_sw_dma_times[] 93 __unused = { 94 /* programmed actual */ 95 { 15, 15 }, /* 16, 16 */ 96 }; 97 98 static const struct symph_cmdtime symph_mw_dma_times[] 99 __unused = { 100 /* programmed actual */ 101 { 7, 7 }, /* 8, 8 */ 102 { 2, 1 }, /* 3, 2 */ 103 { 2, 0 }, /* 3, 1 */ 104 { 1, 0 }, /* 2, 1 */ 105 }; 106