| /* |
| * include/asm-mips/mach-au1x00/au1xxx_ide.h version 01.30.00 Aug. 02 2005 |
| * |
| * BRIEF MODULE DESCRIPTION |
| * AMD Alchemy Au1xxx IDE interface routines over the Static Bus |
| * |
| * Copyright (c) 2003-2005 AMD, Personal Connectivity Solutions |
| * |
| * This program is free software; you can redistribute it and/or modify it under |
| * the terms of the GNU General Public License as published by the Free Software |
| * Foundation; either version 2 of the License, or (at your option) any later |
| * version. |
| * |
| * THIS SOFTWARE IS PROVIDED ``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. |
| * |
| * You should have received a copy of the GNU General Public License along with |
| * this program; if not, write to the Free Software Foundation, Inc., |
| * 675 Mass Ave, Cambridge, MA 02139, USA. |
| * |
| * Note: for more information, please refer "AMD Alchemy Au1200/Au1550 IDE |
| * Interface and Linux Device Driver" Application Note. |
| */ |
| |
| #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA |
| #define DMA_WAIT_TIMEOUT 100 |
| #define NUM_DESCRIPTORS PRD_ENTRIES |
| #else /* CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA */ |
| #define NUM_DESCRIPTORS 2 |
| #endif |
| |
| #ifndef AU1XXX_ATA_RQSIZE |
| #define AU1XXX_ATA_RQSIZE 128 |
| #endif |
| |
| /* Disable Burstable-Support for DBDMA */ |
| #ifndef CONFIG_BLK_DEV_IDE_AU1XXX_BURSTABLE_ON |
| #define CONFIG_BLK_DEV_IDE_AU1XXX_BURSTABLE_ON 0 |
| #endif |
| |
| #ifdef CONFIG_PM |
| /* |
| * This will enable the device to be powered up when write() or read() |
| * is called. If this is not defined, the driver will return -EBUSY. |
| */ |
| #define WAKE_ON_ACCESS 1 |
| |
| typedef struct |
| { |
| spinlock_t lock; /* Used to block on state transitions */ |
| au1xxx_power_dev_t *dev; /* Power Managers device structure */ |
| unsigned stopped; /* USed to signaling device is stopped */ |
| } pm_state; |
| #endif |
| |
| |
| typedef struct |
| { |
| u32 tx_dev_id, rx_dev_id, target_dev_id; |
| u32 tx_chan, rx_chan; |
| void *tx_desc_head, *rx_desc_head; |
| ide_hwif_t *hwif; |
| #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA |
| ide_drive_t *drive; |
| struct dbdma_cmd *dma_table_cpu; |
| dma_addr_t dma_table_dma; |
| #endif |
| int irq; |
| u32 regbase; |
| #ifdef CONFIG_PM |
| pm_state pm; |
| #endif |
| } _auide_hwif; |
| |
| /******************************************************************************* |
| * PIO Mode timing calculation : * |
| * * |
| * Static Bus Spec ATA Spec * |
| * Tcsoe = t1 * |
| * Toecs = t9 * |
| * Twcs = t9 * |
| * Tcsh = t2i | t2 * |
| * Tcsoff = t2i | t2 * |
| * Twp = t2 * |
| * Tcsw = t1 * |
| * Tpm = 0 * |
| * Ta = t1+t2 * |
| *******************************************************************************/ |
| |
| #define TCSOE_MASK (0x07<<29) |
| #define TOECS_MASK (0x07<<26) |
| #define TWCS_MASK (0x07<<28) |
| #define TCSH_MASK (0x0F<<24) |
| #define TCSOFF_MASK (0x07<<20) |
| #define TWP_MASK (0x3F<<14) |
| #define TCSW_MASK (0x0F<<10) |
| #define TPM_MASK (0x0F<<6) |
| #define TA_MASK (0x3F<<0) |
| #define TS_MASK (1<<8) |
| |
| /* Timing parameters PIO mode 0 */ |
| #define SBC_IDE_PIO0_TCSOE (0x04<<29) |
| #define SBC_IDE_PIO0_TOECS (0x01<<26) |
| #define SBC_IDE_PIO0_TWCS (0x02<<28) |
| #define SBC_IDE_PIO0_TCSH (0x08<<24) |
| #define SBC_IDE_PIO0_TCSOFF (0x07<<20) |
| #define SBC_IDE_PIO0_TWP (0x10<<14) |
| #define SBC_IDE_PIO0_TCSW (0x04<<10) |
| #define SBC_IDE_PIO0_TPM (0x0<<6) |
| #define SBC_IDE_PIO0_TA (0x15<<0) |
| /* Timing parameters PIO mode 1 */ |
| #define SBC_IDE_PIO1_TCSOE (0x03<<29) |
| #define SBC_IDE_PIO1_TOECS (0x01<<26) |
| #define SBC_IDE_PIO1_TWCS (0x01<<28) |
| #define SBC_IDE_PIO1_TCSH (0x06<<24) |
| #define SBC_IDE_PIO1_TCSOFF (0x06<<20) |
| #define SBC_IDE_PIO1_TWP (0x08<<14) |
| #define SBC_IDE_PIO1_TCSW (0x03<<10) |
| #define SBC_IDE_PIO1_TPM (0x00<<6) |
| #define SBC_IDE_PIO1_TA (0x0B<<0) |
| /* Timing parameters PIO mode 2 */ |
| #define SBC_IDE_PIO2_TCSOE (0x05<<29) |
| #define SBC_IDE_PIO2_TOECS (0x01<<26) |
| #define SBC_IDE_PIO2_TWCS (0x01<<28) |
| #define SBC_IDE_PIO2_TCSH (0x07<<24) |
| #define SBC_IDE_PIO2_TCSOFF (0x07<<20) |
| #define SBC_IDE_PIO2_TWP (0x1F<<14) |
| #define SBC_IDE_PIO2_TCSW (0x05<<10) |
| #define SBC_IDE_PIO2_TPM (0x00<<6) |
| #define SBC_IDE_PIO2_TA (0x22<<0) |
| /* Timing parameters PIO mode 3 */ |
| #define SBC_IDE_PIO3_TCSOE (0x05<<29) |
| #define SBC_IDE_PIO3_TOECS (0x01<<26) |
| #define SBC_IDE_PIO3_TWCS (0x01<<28) |
| #define SBC_IDE_PIO3_TCSH (0x0D<<24) |
| #define SBC_IDE_PIO3_TCSOFF (0x0D<<20) |
| #define SBC_IDE_PIO3_TWP (0x15<<14) |
| #define SBC_IDE_PIO3_TCSW (0x05<<10) |
| #define SBC_IDE_PIO3_TPM (0x00<<6) |
| #define SBC_IDE_PIO3_TA (0x1A<<0) |
| /* Timing parameters PIO mode 4 */ |
| #define SBC_IDE_PIO4_TCSOE (0x04<<29) |
| #define SBC_IDE_PIO4_TOECS (0x01<<26) |
| #define SBC_IDE_PIO4_TWCS (0x01<<28) |
| #define SBC_IDE_PIO4_TCSH (0x04<<24) |
| #define SBC_IDE_PIO4_TCSOFF (0x04<<20) |
| #define SBC_IDE_PIO4_TWP (0x0D<<14) |
| #define SBC_IDE_PIO4_TCSW (0x03<<10) |
| #define SBC_IDE_PIO4_TPM (0x00<<6) |
| #define SBC_IDE_PIO4_TA (0x12<<0) |
| /* Timing parameters MDMA mode 0 */ |
| #define SBC_IDE_MDMA0_TCSOE (0x03<<29) |
| #define SBC_IDE_MDMA0_TOECS (0x01<<26) |
| #define SBC_IDE_MDMA0_TWCS (0x01<<28) |
| #define SBC_IDE_MDMA0_TCSH (0x07<<24) |
| #define SBC_IDE_MDMA0_TCSOFF (0x07<<20) |
| #define SBC_IDE_MDMA0_TWP (0x0C<<14) |
| #define SBC_IDE_MDMA0_TCSW (0x03<<10) |
| #define SBC_IDE_MDMA0_TPM (0x00<<6) |
| #define SBC_IDE_MDMA0_TA (0x0F<<0) |
| /* Timing parameters MDMA mode 1 */ |
| #define SBC_IDE_MDMA1_TCSOE (0x05<<29) |
| #define SBC_IDE_MDMA1_TOECS (0x01<<26) |
| #define SBC_IDE_MDMA1_TWCS (0x01<<28) |
| #define SBC_IDE_MDMA1_TCSH (0x05<<24) |
| #define SBC_IDE_MDMA1_TCSOFF (0x05<<20) |
| #define SBC_IDE_MDMA1_TWP (0x0F<<14) |
| #define SBC_IDE_MDMA1_TCSW (0x05<<10) |
| #define SBC_IDE_MDMA1_TPM (0x00<<6) |
| #define SBC_IDE_MDMA1_TA (0x15<<0) |
| /* Timing parameters MDMA mode 2 */ |
| #define SBC_IDE_MDMA2_TCSOE (0x04<<29) |
| #define SBC_IDE_MDMA2_TOECS (0x01<<26) |
| #define SBC_IDE_MDMA2_TWCS (0x01<<28) |
| #define SBC_IDE_MDMA2_TCSH (0x04<<24) |
| #define SBC_IDE_MDMA2_TCSOFF (0x04<<20) |
| #define SBC_IDE_MDMA2_TWP (0x0D<<14) |
| #define SBC_IDE_MDMA2_TCSW (0x04<<10) |
| #define SBC_IDE_MDMA2_TPM (0x00<<6) |
| #define SBC_IDE_MDMA2_TA (0x12<<0) |
| |
| #define SBC_IDE_TIMING(mode) \ |
| SBC_IDE_##mode##_TWCS | \ |
| SBC_IDE_##mode##_TCSH | \ |
| SBC_IDE_##mode##_TCSOFF | \ |
| SBC_IDE_##mode##_TWP | \ |
| SBC_IDE_##mode##_TCSW | \ |
| SBC_IDE_##mode##_TPM | \ |
| SBC_IDE_##mode##_TA |
