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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
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;
} _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 (0x00 << 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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