| /* |
| * 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. |
| */ |
| #include <linux/config.h> |
| |
| #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; |
| u8 white_list, black_list; |
| struct dbdma_cmd *dma_table_cpu; |
| dma_addr_t dma_table_dma; |
| struct scatterlist *sg_table; |
| int sg_nents; |
| int sg_dma_direction; |
| #endif |
| struct device *dev; |
| int irq; |
| u32 regbase; |
| #ifdef CONFIG_PM |
| pm_state pm; |
| #endif |
| } _auide_hwif; |
| |
| #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA |
| struct drive_list_entry { |
| const char * id_model; |
| const char * id_firmware; |
| }; |
| |
| /* HD white list */ |
| static const struct drive_list_entry dma_white_list [] = { |
| /* |
| * Hitachi |
| */ |
| { "HITACHI_DK14FA-20" , "ALL" }, |
| { "HTS726060M9AT00" , "ALL" }, |
| /* |
| * Maxtor |
| */ |
| { "Maxtor 6E040L0" , "ALL" }, |
| { "Maxtor 6Y080P0" , "ALL" }, |
| { "Maxtor 6Y160P0" , "ALL" }, |
| /* |
| * Seagate |
| */ |
| { "ST3120026A" , "ALL" }, |
| { "ST320014A" , "ALL" }, |
| { "ST94011A" , "ALL" }, |
| { "ST340016A" , "ALL" }, |
| /* |
| * Western Digital |
| */ |
| { "WDC WD400UE-00HCT0" , "ALL" }, |
| { "WDC WD400JB-00JJC0" , "ALL" }, |
| { NULL , NULL } |
| }; |
| |
| /* HD black list */ |
| static const struct drive_list_entry dma_black_list [] = { |
| /* |
| * Western Digital |
| */ |
| { "WDC WD100EB-00CGH0" , "ALL" }, |
| { "WDC WD200BB-00AUA1" , "ALL" }, |
| { "WDC AC24300L" , "ALL" }, |
| { NULL , NULL } |
| }; |
| #endif |
| |
| /* function prototyping */ |
| u8 auide_inb(unsigned long port); |
| u16 auide_inw(unsigned long port); |
| u32 auide_inl(unsigned long port); |
| void auide_insw(unsigned long port, void *addr, u32 count); |
| void auide_insl(unsigned long port, void *addr, u32 count); |
| void auide_outb(u8 addr, unsigned long port); |
| void auide_outbsync(ide_drive_t *drive, u8 addr, unsigned long port); |
| void auide_outw(u16 addr, unsigned long port); |
| void auide_outl(u32 addr, unsigned long port); |
| void auide_outsw(unsigned long port, void *addr, u32 count); |
| void auide_outsl(unsigned long port, void *addr, u32 count); |
| static void auide_tune_drive(ide_drive_t *drive, byte pio); |
| static int auide_tune_chipset (ide_drive_t *drive, u8 speed); |
| static int auide_ddma_init( _auide_hwif *auide ); |
| static void auide_setup_ports(hw_regs_t *hw, _auide_hwif *ahwif); |
| int __init auide_probe(void); |
| |
| #ifdef CONFIG_PM |
| int au1200ide_pm_callback( au1xxx_power_dev_t *dev, |
| au1xxx_request_t request, void *data); |
| static int au1xxxide_pm_standby( au1xxx_power_dev_t *dev ); |
| static int au1xxxide_pm_sleep( au1xxx_power_dev_t *dev ); |
| static int au1xxxide_pm_resume( au1xxx_power_dev_t *dev ); |
| static int au1xxxide_pm_getstatus( au1xxx_power_dev_t *dev ); |
| static int au1xxxide_pm_access( au1xxx_power_dev_t *dev ); |
| static int au1xxxide_pm_idle( au1xxx_power_dev_t *dev ); |
| static int au1xxxide_pm_cleanup( au1xxx_power_dev_t *dev ); |
| #endif |
| |
| |
| /* |
| * Multi-Word DMA + DbDMA functions |
| */ |
| #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA |
| |
| static int in_drive_list(struct hd_driveid *id, |
| const struct drive_list_entry *drive_table); |
| static int auide_build_sglist(ide_drive_t *drive, struct request *rq); |
| static int auide_build_dmatable(ide_drive_t *drive); |
| static int auide_dma_end(ide_drive_t *drive); |
| static void auide_dma_start(ide_drive_t *drive ); |
| ide_startstop_t auide_dma_intr (ide_drive_t *drive); |
| static void auide_dma_exec_cmd(ide_drive_t *drive, u8 command); |
| static int auide_dma_setup(ide_drive_t *drive); |
| static int auide_dma_check(ide_drive_t *drive); |
| static int auide_dma_test_irq(ide_drive_t *drive); |
| static int auide_dma_host_off(ide_drive_t *drive); |
| static int auide_dma_host_on(ide_drive_t *drive); |
| static int auide_dma_lostirq(ide_drive_t *drive); |
| static int auide_dma_on(ide_drive_t *drive); |
| static void auide_ddma_tx_callback(int irq, void *param, |
| struct pt_regs *regs); |
| static void auide_ddma_rx_callback(int irq, void *param, |
| struct pt_regs *regs); |
| static int auide_dma_off_quietly(ide_drive_t *drive); |
| static int auide_dma_timeout(ide_drive_t *drive); |
| |
| #endif /* end CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA */ |
| |
| /******************************************************************************* |
| * 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) |
| |