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/*
* 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
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