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258 lines
10 KiB
C
258 lines
10 KiB
C
/*
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* include/asm-mips/mach-au1x00/au1xxx_ide.h version 01.30.00 Aug. 02 2005
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*
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* BRIEF MODULE DESCRIPTION
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* AMD Alchemy Au1xxx IDE interface routines over the Static Bus
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*
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* Copyright (c) 2003-2005 AMD, Personal Connectivity Solutions
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*
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* This program is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option) any later
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* version.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* Note: for more information, please refer "AMD Alchemy Au1200/Au1550 IDE
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* Interface and Linux Device Driver" Application Note.
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*/
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#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
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#define DMA_WAIT_TIMEOUT 100
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#define NUM_DESCRIPTORS PRD_ENTRIES
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#else /* CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA */
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#define NUM_DESCRIPTORS 2
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#endif
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#ifndef AU1XXX_ATA_RQSIZE
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#define AU1XXX_ATA_RQSIZE 128
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#endif
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/* Disable Burstable-Support for DBDMA */
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#ifndef CONFIG_BLK_DEV_IDE_AU1XXX_BURSTABLE_ON
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#define CONFIG_BLK_DEV_IDE_AU1XXX_BURSTABLE_ON 0
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#endif
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#ifdef CONFIG_PM
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/*
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* This will enable the device to be powered up when write() or read()
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* is called. If this is not defined, the driver will return -EBUSY.
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*/
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#define WAKE_ON_ACCESS 1
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typedef struct
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{
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spinlock_t lock; /* Used to block on state transitions */
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au1xxx_power_dev_t *dev; /* Power Managers device structure */
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unsigned stopped; /* USed to signaling device is stopped */
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} pm_state;
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#endif
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typedef struct
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{
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u32 tx_dev_id, rx_dev_id, target_dev_id;
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u32 tx_chan, rx_chan;
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void *tx_desc_head, *rx_desc_head;
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ide_hwif_t *hwif;
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#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
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ide_drive_t *drive;
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u8 white_list, black_list;
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struct dbdma_cmd *dma_table_cpu;
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dma_addr_t dma_table_dma;
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#endif
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struct device *dev;
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int irq;
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u32 regbase;
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#ifdef CONFIG_PM
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pm_state pm;
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#endif
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} _auide_hwif;
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#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
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/* HD white list */
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static const struct drive_list_entry dma_white_list [] = {
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/*
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* Hitachi
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*/
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{ "HITACHI_DK14FA-20" , NULL },
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{ "HTS726060M9AT00" , NULL },
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/*
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* Maxtor
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*/
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{ "Maxtor 6E040L0" , NULL },
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{ "Maxtor 6Y080P0" , NULL },
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{ "Maxtor 6Y160P0" , NULL },
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/*
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* Seagate
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*/
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{ "ST3120026A" , NULL },
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{ "ST320014A" , NULL },
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{ "ST94011A" , NULL },
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{ "ST340016A" , NULL },
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/*
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* Western Digital
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*/
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{ "WDC WD400UE-00HCT0" , NULL },
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{ "WDC WD400JB-00JJC0" , NULL },
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{ NULL , NULL }
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};
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/* HD black list */
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static const struct drive_list_entry dma_black_list [] = {
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/*
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* Western Digital
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*/
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{ "WDC WD100EB-00CGH0" , NULL },
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{ "WDC WD200BB-00AUA1" , NULL },
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{ "WDC AC24300L" , NULL },
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{ NULL , NULL }
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};
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#endif
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/* function prototyping */
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u8 auide_inb(unsigned long port);
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u16 auide_inw(unsigned long port);
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u32 auide_inl(unsigned long port);
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void auide_insw(unsigned long port, void *addr, u32 count);
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void auide_insl(unsigned long port, void *addr, u32 count);
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void auide_outb(u8 addr, unsigned long port);
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void auide_outbsync(ide_drive_t *drive, u8 addr, unsigned long port);
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void auide_outw(u16 addr, unsigned long port);
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void auide_outl(u32 addr, unsigned long port);
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void auide_outsw(unsigned long port, void *addr, u32 count);
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void auide_outsl(unsigned long port, void *addr, u32 count);
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static void auide_tune_drive(ide_drive_t *drive, byte pio);
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static int auide_tune_chipset(ide_drive_t *drive, u8 speed);
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static int auide_ddma_init( _auide_hwif *auide );
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static void auide_setup_ports(hw_regs_t *hw, _auide_hwif *ahwif);
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int __init auide_probe(void);
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/*******************************************************************************
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* PIO Mode timing calculation : *
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* *
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* Static Bus Spec ATA Spec *
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* Tcsoe = t1 *
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* Toecs = t9 *
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* Twcs = t9 *
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* Tcsh = t2i | t2 *
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* Tcsoff = t2i | t2 *
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* Twp = t2 *
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* Tcsw = t1 *
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* Tpm = 0 *
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* Ta = t1+t2 *
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*******************************************************************************/
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#define TCSOE_MASK (0x07<<29)
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#define TOECS_MASK (0x07<<26)
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#define TWCS_MASK (0x07<<28)
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#define TCSH_MASK (0x0F<<24)
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#define TCSOFF_MASK (0x07<<20)
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#define TWP_MASK (0x3F<<14)
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#define TCSW_MASK (0x0F<<10)
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#define TPM_MASK (0x0F<<6)
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#define TA_MASK (0x3F<<0)
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#define TS_MASK (1<<8)
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/* Timing parameters PIO mode 0 */
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#define SBC_IDE_PIO0_TCSOE (0x04<<29)
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#define SBC_IDE_PIO0_TOECS (0x01<<26)
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#define SBC_IDE_PIO0_TWCS (0x02<<28)
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#define SBC_IDE_PIO0_TCSH (0x08<<24)
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#define SBC_IDE_PIO0_TCSOFF (0x07<<20)
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#define SBC_IDE_PIO0_TWP (0x10<<14)
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#define SBC_IDE_PIO0_TCSW (0x04<<10)
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#define SBC_IDE_PIO0_TPM (0x0<<6)
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#define SBC_IDE_PIO0_TA (0x15<<0)
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/* Timing parameters PIO mode 1 */
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#define SBC_IDE_PIO1_TCSOE (0x03<<29)
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#define SBC_IDE_PIO1_TOECS (0x01<<26)
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#define SBC_IDE_PIO1_TWCS (0x01<<28)
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#define SBC_IDE_PIO1_TCSH (0x06<<24)
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#define SBC_IDE_PIO1_TCSOFF (0x06<<20)
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#define SBC_IDE_PIO1_TWP (0x08<<14)
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#define SBC_IDE_PIO1_TCSW (0x03<<10)
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#define SBC_IDE_PIO1_TPM (0x00<<6)
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#define SBC_IDE_PIO1_TA (0x0B<<0)
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/* Timing parameters PIO mode 2 */
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#define SBC_IDE_PIO2_TCSOE (0x05<<29)
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#define SBC_IDE_PIO2_TOECS (0x01<<26)
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#define SBC_IDE_PIO2_TWCS (0x01<<28)
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#define SBC_IDE_PIO2_TCSH (0x07<<24)
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#define SBC_IDE_PIO2_TCSOFF (0x07<<20)
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#define SBC_IDE_PIO2_TWP (0x1F<<14)
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#define SBC_IDE_PIO2_TCSW (0x05<<10)
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#define SBC_IDE_PIO2_TPM (0x00<<6)
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#define SBC_IDE_PIO2_TA (0x22<<0)
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/* Timing parameters PIO mode 3 */
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#define SBC_IDE_PIO3_TCSOE (0x05<<29)
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#define SBC_IDE_PIO3_TOECS (0x01<<26)
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#define SBC_IDE_PIO3_TWCS (0x01<<28)
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#define SBC_IDE_PIO3_TCSH (0x0D<<24)
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#define SBC_IDE_PIO3_TCSOFF (0x0D<<20)
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#define SBC_IDE_PIO3_TWP (0x15<<14)
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#define SBC_IDE_PIO3_TCSW (0x05<<10)
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#define SBC_IDE_PIO3_TPM (0x00<<6)
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#define SBC_IDE_PIO3_TA (0x1A<<0)
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/* Timing parameters PIO mode 4 */
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#define SBC_IDE_PIO4_TCSOE (0x04<<29)
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#define SBC_IDE_PIO4_TOECS (0x01<<26)
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#define SBC_IDE_PIO4_TWCS (0x01<<28)
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#define SBC_IDE_PIO4_TCSH (0x04<<24)
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#define SBC_IDE_PIO4_TCSOFF (0x04<<20)
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#define SBC_IDE_PIO4_TWP (0x0D<<14)
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#define SBC_IDE_PIO4_TCSW (0x03<<10)
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#define SBC_IDE_PIO4_TPM (0x00<<6)
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#define SBC_IDE_PIO4_TA (0x12<<0)
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/* Timing parameters MDMA mode 0 */
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#define SBC_IDE_MDMA0_TCSOE (0x03<<29)
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#define SBC_IDE_MDMA0_TOECS (0x01<<26)
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#define SBC_IDE_MDMA0_TWCS (0x01<<28)
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#define SBC_IDE_MDMA0_TCSH (0x07<<24)
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#define SBC_IDE_MDMA0_TCSOFF (0x07<<20)
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#define SBC_IDE_MDMA0_TWP (0x0C<<14)
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#define SBC_IDE_MDMA0_TCSW (0x03<<10)
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#define SBC_IDE_MDMA0_TPM (0x00<<6)
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#define SBC_IDE_MDMA0_TA (0x0F<<0)
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/* Timing parameters MDMA mode 1 */
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#define SBC_IDE_MDMA1_TCSOE (0x05<<29)
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#define SBC_IDE_MDMA1_TOECS (0x01<<26)
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#define SBC_IDE_MDMA1_TWCS (0x01<<28)
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#define SBC_IDE_MDMA1_TCSH (0x05<<24)
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#define SBC_IDE_MDMA1_TCSOFF (0x05<<20)
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#define SBC_IDE_MDMA1_TWP (0x0F<<14)
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#define SBC_IDE_MDMA1_TCSW (0x05<<10)
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#define SBC_IDE_MDMA1_TPM (0x00<<6)
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#define SBC_IDE_MDMA1_TA (0x15<<0)
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/* Timing parameters MDMA mode 2 */
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#define SBC_IDE_MDMA2_TCSOE (0x04<<29)
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#define SBC_IDE_MDMA2_TOECS (0x01<<26)
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#define SBC_IDE_MDMA2_TWCS (0x01<<28)
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#define SBC_IDE_MDMA2_TCSH (0x04<<24)
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#define SBC_IDE_MDMA2_TCSOFF (0x04<<20)
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#define SBC_IDE_MDMA2_TWP (0x0D<<14)
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#define SBC_IDE_MDMA2_TCSW (0x04<<10)
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#define SBC_IDE_MDMA2_TPM (0x00<<6)
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#define SBC_IDE_MDMA2_TA (0x12<<0)
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#define SBC_IDE_TIMING(mode) \
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SBC_IDE_##mode##_TWCS | \
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SBC_IDE_##mode##_TCSH | \
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SBC_IDE_##mode##_TCSOFF | \
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SBC_IDE_##mode##_TWP | \
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SBC_IDE_##mode##_TCSW | \
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SBC_IDE_##mode##_TPM | \
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SBC_IDE_##mode##_TA
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