1/* 2 * include/asm-mips/mach-au1x00/au1xxx_ide.h version 01.30.00 Aug. 02 2005 3 * 4 * BRIEF MODULE DESCRIPTION 5 * AMD Alchemy Au1xxx IDE interface routines over the Static Bus 6 * 7 * Copyright (c) 2003-2005 AMD, Personal Connectivity Solutions 8 * 9 * This program is free software; you can redistribute it and/or modify it under 10 * the terms of the GNU General Public License as published by the Free Software 11 * Foundation; either version 2 of the License, or (at your option) any later 12 * version. 13 * 14 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, 15 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 16 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 23 * POSSIBILITY OF SUCH DAMAGE. 24 * 25 * You should have received a copy of the GNU General Public License along with 26 * this program; if not, write to the Free Software Foundation, Inc., 27 * 675 Mass Ave, Cambridge, MA 02139, USA. 28 * 29 * Note: for more information, please refer "AMD Alchemy Au1200/Au1550 IDE 30 * Interface and Linux Device Driver" Application Note. 31 */ 32 33#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA 34#define DMA_WAIT_TIMEOUT 100 35#define NUM_DESCRIPTORS PRD_ENTRIES 36#else /* CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA */ 37#define NUM_DESCRIPTORS 2 38#endif 39 40#ifndef AU1XXX_ATA_RQSIZE 41#define AU1XXX_ATA_RQSIZE 128 42#endif 43 44/* Disable Burstable-Support for DBDMA */ 45#ifndef CONFIG_BLK_DEV_IDE_AU1XXX_BURSTABLE_ON 46#define CONFIG_BLK_DEV_IDE_AU1XXX_BURSTABLE_ON 0 47#endif 48 49typedef struct { 50 u32 tx_dev_id, rx_dev_id, target_dev_id; 51 u32 tx_chan, rx_chan; 52 void *tx_desc_head, *rx_desc_head; 53 ide_hwif_t *hwif; 54#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA 55 ide_drive_t *drive; 56 struct dbdma_cmd *dma_table_cpu; 57 dma_addr_t dma_table_dma; 58#endif 59 int irq; 60 u32 regbase; 61} _auide_hwif; 62 63/******************************************************************************/ 64/* PIO Mode timing calculation : */ 65/* */ 66/* Static Bus Spec ATA Spec */ 67/* Tcsoe = t1 */ 68/* Toecs = t9 */ 69/* Twcs = t9 */ 70/* Tcsh = t2i | t2 */ 71/* Tcsoff = t2i | t2 */ 72/* Twp = t2 */ 73/* Tcsw = t1 */ 74/* Tpm = 0 */ 75/* Ta = t1+t2 */ 76/******************************************************************************/ 77 78#define TCSOE_MASK (0x07 << 29) 79#define TOECS_MASK (0x07 << 26) 80#define TWCS_MASK (0x07 << 28) 81#define TCSH_MASK (0x0F << 24) 82#define TCSOFF_MASK (0x07 << 20) 83#define TWP_MASK (0x3F << 14) 84#define TCSW_MASK (0x0F << 10) 85#define TPM_MASK (0x0F << 6) 86#define TA_MASK (0x3F << 0) 87#define TS_MASK (1 << 8) 88 89/* Timing parameters PIO mode 0 */ 90#define SBC_IDE_PIO0_TCSOE (0x04 << 29) 91#define SBC_IDE_PIO0_TOECS (0x01 << 26) 92#define SBC_IDE_PIO0_TWCS (0x02 << 28) 93#define SBC_IDE_PIO0_TCSH (0x08 << 24) 94#define SBC_IDE_PIO0_TCSOFF (0x07 << 20) 95#define SBC_IDE_PIO0_TWP (0x10 << 14) 96#define SBC_IDE_PIO0_TCSW (0x04 << 10) 97#define SBC_IDE_PIO0_TPM (0x00 << 6) 98#define SBC_IDE_PIO0_TA (0x15 << 0) 99/* Timing parameters PIO mode 1 */ 100#define SBC_IDE_PIO1_TCSOE (0x03 << 29) 101#define SBC_IDE_PIO1_TOECS (0x01 << 26) 102#define SBC_IDE_PIO1_TWCS (0x01 << 28) 103#define SBC_IDE_PIO1_TCSH (0x06 << 24) 104#define SBC_IDE_PIO1_TCSOFF (0x06 << 20) 105#define SBC_IDE_PIO1_TWP (0x08 << 14) 106#define SBC_IDE_PIO1_TCSW (0x03 << 10) 107#define SBC_IDE_PIO1_TPM (0x00 << 6) 108#define SBC_IDE_PIO1_TA (0x0B << 0) 109/* Timing parameters PIO mode 2 */ 110#define SBC_IDE_PIO2_TCSOE (0x05 << 29) 111#define SBC_IDE_PIO2_TOECS (0x01 << 26) 112#define SBC_IDE_PIO2_TWCS (0x01 << 28) 113#define SBC_IDE_PIO2_TCSH (0x07 << 24) 114#define SBC_IDE_PIO2_TCSOFF (0x07 << 20) 115#define SBC_IDE_PIO2_TWP (0x1F << 14) 116#define SBC_IDE_PIO2_TCSW (0x05 << 10) 117#define SBC_IDE_PIO2_TPM (0x00 << 6) 118#define SBC_IDE_PIO2_TA (0x22 << 0) 119/* Timing parameters PIO mode 3 */ 120#define SBC_IDE_PIO3_TCSOE (0x05 << 29) 121#define SBC_IDE_PIO3_TOECS (0x01 << 26) 122#define SBC_IDE_PIO3_TWCS (0x01 << 28) 123#define SBC_IDE_PIO3_TCSH (0x0D << 24) 124#define SBC_IDE_PIO3_TCSOFF (0x0D << 20) 125#define SBC_IDE_PIO3_TWP (0x15 << 14) 126#define SBC_IDE_PIO3_TCSW (0x05 << 10) 127#define SBC_IDE_PIO3_TPM (0x00 << 6) 128#define SBC_IDE_PIO3_TA (0x1A << 0) 129/* Timing parameters PIO mode 4 */ 130#define SBC_IDE_PIO4_TCSOE (0x04 << 29) 131#define SBC_IDE_PIO4_TOECS (0x01 << 26) 132#define SBC_IDE_PIO4_TWCS (0x01 << 28) 133#define SBC_IDE_PIO4_TCSH (0x04 << 24) 134#define SBC_IDE_PIO4_TCSOFF (0x04 << 20) 135#define SBC_IDE_PIO4_TWP (0x0D << 14) 136#define SBC_IDE_PIO4_TCSW (0x03 << 10) 137#define SBC_IDE_PIO4_TPM (0x00 << 6) 138#define SBC_IDE_PIO4_TA (0x12 << 0) 139/* Timing parameters MDMA mode 0 */ 140#define SBC_IDE_MDMA0_TCSOE (0x03 << 29) 141#define SBC_IDE_MDMA0_TOECS (0x01 << 26) 142#define SBC_IDE_MDMA0_TWCS (0x01 << 28) 143#define SBC_IDE_MDMA0_TCSH (0x07 << 24) 144#define SBC_IDE_MDMA0_TCSOFF (0x07 << 20) 145#define SBC_IDE_MDMA0_TWP (0x0C << 14) 146#define SBC_IDE_MDMA0_TCSW (0x03 << 10) 147#define SBC_IDE_MDMA0_TPM (0x00 << 6) 148#define SBC_IDE_MDMA0_TA (0x0F << 0) 149/* Timing parameters MDMA mode 1 */ 150#define SBC_IDE_MDMA1_TCSOE (0x05 << 29) 151#define SBC_IDE_MDMA1_TOECS (0x01 << 26) 152#define SBC_IDE_MDMA1_TWCS (0x01 << 28) 153#define SBC_IDE_MDMA1_TCSH (0x05 << 24) 154#define SBC_IDE_MDMA1_TCSOFF (0x05 << 20) 155#define SBC_IDE_MDMA1_TWP (0x0F << 14) 156#define SBC_IDE_MDMA1_TCSW (0x05 << 10) 157#define SBC_IDE_MDMA1_TPM (0x00 << 6) 158#define SBC_IDE_MDMA1_TA (0x15 << 0) 159/* Timing parameters MDMA mode 2 */ 160#define SBC_IDE_MDMA2_TCSOE (0x04 << 29) 161#define SBC_IDE_MDMA2_TOECS (0x01 << 26) 162#define SBC_IDE_MDMA2_TWCS (0x01 << 28) 163#define SBC_IDE_MDMA2_TCSH (0x04 << 24) 164#define SBC_IDE_MDMA2_TCSOFF (0x04 << 20) 165#define SBC_IDE_MDMA2_TWP (0x0D << 14) 166#define SBC_IDE_MDMA2_TCSW (0x04 << 10) 167#define SBC_IDE_MDMA2_TPM (0x00 << 6) 168#define SBC_IDE_MDMA2_TA (0x12 << 0) 169 170#define SBC_IDE_TIMING(mode) \ 171 (SBC_IDE_##mode##_TWCS | \ 172 SBC_IDE_##mode##_TCSH | \ 173 SBC_IDE_##mode##_TCSOFF | \ 174 SBC_IDE_##mode##_TWP | \ 175 SBC_IDE_##mode##_TCSW | \ 176 SBC_IDE_##mode##_TPM | \ 177 SBC_IDE_##mode##_TA) 178