From 8f29e650bffc1e22ed6b2d0b321bc77627f3bb7a Mon Sep 17 00:00:00 2001 From: Jordan Crouse Date: Thu, 15 Dec 2005 02:17:46 +0100 Subject: [PATCH] [PATCH] ide: AU1200 IDE update Changes here include removing all of CONFIG_PM while it is being repeatedly smacked with a lead pipe, moving the BURSTMODE param to a #define (it should be defined almost always anyway), fixing the rqsize stuff, pulling ide_ioreg_t, and general cleanups and whatnot. Signed-off-by: Jordan Crouse Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/Kconfig | 8 - drivers/ide/mips/Makefile | 3 + drivers/ide/mips/au1xxx-ide.c | 2066 ++++++++++++----------------- include/asm-mips/mach-au1x00/au1xxx_ide.h | 17 +- 4 files changed, 827 insertions(+), 1267 deletions(-) rewrite drivers/ide/mips/au1xxx-ide.c (86%) diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig index 45579ae12c01..1c81174595b3 100644 --- a/drivers/ide/Kconfig +++ b/drivers/ide/Kconfig @@ -807,14 +807,6 @@ config BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA depends on SOC_AU1200 && BLK_DEV_IDE_AU1XXX endchoice -config BLK_DEV_IDE_AU1XXX_BURSTABLE_ON - bool "Enable burstable Mode on DbDMA" - default false - depends BLK_DEV_IDE_AU1XXX - help - This option enable the burstable Flag on DbDMA controller - (cf. "AMD Alchemy 'Au1200' Processor Data Book - PRELIMINARY"). - config BLK_DEV_IDE_AU1XXX_SEQTS_PER_RQ int "Maximum transfer size (KB) per request (up to 128)" default "128" diff --git a/drivers/ide/mips/Makefile b/drivers/ide/mips/Makefile index 578e52a59588..677c7b2bac92 100644 --- a/drivers/ide/mips/Makefile +++ b/drivers/ide/mips/Makefile @@ -1 +1,4 @@ obj-$(CONFIG_BLK_DEV_IDE_SWARM) += swarm.o +obj-$(CONFIG_BLK_DEV_IDE_AU1XXX) += au1xxx-ide.o + +EXTRA_CFLAGS := -Idrivers/ide diff --git a/drivers/ide/mips/au1xxx-ide.c b/drivers/ide/mips/au1xxx-ide.c dissimilarity index 86% index 2b6327c576b9..32431dcf5d8e 100644 --- a/drivers/ide/mips/au1xxx-ide.c +++ b/drivers/ide/mips/au1xxx-ide.c @@ -1,1250 +1,816 @@ -/* - * linux/drivers/ide/mips/au1xxx-ide.c 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. - */ -#undef REALLY_SLOW_IO /* most systems can safely undef this */ - -#include /* for CONFIG_BLK_DEV_IDEPCI */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include - -#include -#include -#include - -#if CONFIG_PM -#include -#endif - -#include - -#define DRV_NAME "au1200-ide" -#define DRV_VERSION "1.0" -#define DRV_AUTHOR "AMD PCS / Pete Popov " -#define DRV_DESC "Au1200 IDE" - -static _auide_hwif auide_hwif; -static spinlock_t ide_tune_drive_spin_lock = SPIN_LOCK_UNLOCKED; -static spinlock_t ide_tune_chipset_spin_lock = SPIN_LOCK_UNLOCKED; -static int dbdma_init_done = 0; - -/* - * local I/O functions - */ -u8 auide_inb(unsigned long port) -{ - return (au_readb(port)); -} - -u16 auide_inw(unsigned long port) -{ - return (au_readw(port)); -} - -u32 auide_inl(unsigned long port) -{ - return (au_readl(port)); -} - -void auide_insw(unsigned long port, void *addr, u32 count) -{ -#if defined(CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA) - - _auide_hwif *ahwif = &auide_hwif; - chan_tab_t *ctp; - au1x_ddma_desc_t *dp; - - if(!put_dest_flags(ahwif->rx_chan, (void*)addr, count << 1, - DDMA_FLAGS_NOIE)) { - printk(KERN_ERR "%s failed %d\n", __FUNCTION__, __LINE__); - return; - } - ctp = *((chan_tab_t **)ahwif->rx_chan); - dp = ctp->cur_ptr; - while (dp->dscr_cmd0 & DSCR_CMD0_V) - ; - ctp->cur_ptr = au1xxx_ddma_get_nextptr_virt(dp); -#else - while (count--) - { - *(u16 *)addr = au_readw(port); - addr +=2 ; - } -#endif -} - -void auide_insl(unsigned long port, void *addr, u32 count) -{ - while (count--) - { - *(u32 *)addr = au_readl(port); - /* NOTE: For IDE interfaces over PCMCIA, - * 32-bit access does not work - */ - addr += 4; - } -} - -void auide_outb(u8 addr, unsigned long port) -{ - return (au_writeb(addr, port)); -} - -void auide_outbsync(ide_drive_t *drive, u8 addr, unsigned long port) -{ - return (au_writeb(addr, port)); -} - -void auide_outw(u16 addr, unsigned long port) -{ - return (au_writew(addr, port)); -} - -void auide_outl(u32 addr, unsigned long port) -{ - return (au_writel(addr, port)); -} - -void auide_outsw(unsigned long port, void *addr, u32 count) -{ -#if defined(CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA) - _auide_hwif *ahwif = &auide_hwif; - chan_tab_t *ctp; - au1x_ddma_desc_t *dp; - - if(!put_source_flags(ahwif->tx_chan, (void*)addr, - count << 1, DDMA_FLAGS_NOIE)) { - printk(KERN_ERR "%s failed %d\n", __FUNCTION__, __LINE__); - return; - } - ctp = *((chan_tab_t **)ahwif->tx_chan); - dp = ctp->cur_ptr; - while (dp->dscr_cmd0 & DSCR_CMD0_V) - ; - ctp->cur_ptr = au1xxx_ddma_get_nextptr_virt(dp); -#else - while (count--) - { - au_writew(*(u16 *)addr, port); - addr += 2; - } -#endif -} - -void auide_outsl(unsigned long port, void *addr, u32 count) -{ - while (count--) - { - au_writel(*(u32 *)addr, port); - /* NOTE: For IDE interfaces over PCMCIA, - * 32-bit access does not work - */ - addr += 4; - } -} - -static void auide_tune_drive(ide_drive_t *drive, byte pio) -{ - int mem_sttime; - int mem_stcfg; - unsigned long flags; - u8 speed; - - /* get the best pio mode for the drive */ - pio = ide_get_best_pio_mode(drive, pio, 4, NULL); - - printk("%s: setting Au1XXX IDE to PIO mode%d\n", - drive->name, pio); - - spin_lock_irqsave(&ide_tune_drive_spin_lock, flags); - - mem_sttime = 0; - mem_stcfg = au_readl(MEM_STCFG2); - - /* set pio mode! */ - switch(pio) { - case 0: - /* set timing parameters for RCS2# */ - mem_sttime = SBC_IDE_PIO0_TWCS - | SBC_IDE_PIO0_TCSH - | SBC_IDE_PIO0_TCSOFF - | SBC_IDE_PIO0_TWP - | SBC_IDE_PIO0_TCSW - | SBC_IDE_PIO0_TPM - | SBC_IDE_PIO0_TA; - /* set configuration for RCS2# */ - mem_stcfg |= TS_MASK; - mem_stcfg &= ~TCSOE_MASK; - mem_stcfg &= ~TOECS_MASK; - mem_stcfg |= SBC_IDE_PIO0_TCSOE | SBC_IDE_PIO0_TOECS; - - au_writel(mem_sttime,MEM_STTIME2); - au_writel(mem_stcfg,MEM_STCFG2); - break; - - case 1: - /* set timing parameters for RCS2# */ - mem_sttime = SBC_IDE_PIO1_TWCS - | SBC_IDE_PIO1_TCSH - | SBC_IDE_PIO1_TCSOFF - | SBC_IDE_PIO1_TWP - | SBC_IDE_PIO1_TCSW - | SBC_IDE_PIO1_TPM - | SBC_IDE_PIO1_TA; - /* set configuration for RCS2# */ - mem_stcfg |= TS_MASK; - mem_stcfg &= ~TCSOE_MASK; - mem_stcfg &= ~TOECS_MASK; - mem_stcfg |= SBC_IDE_PIO1_TCSOE | SBC_IDE_PIO1_TOECS; - break; - - case 2: - /* set timing parameters for RCS2# */ - mem_sttime = SBC_IDE_PIO2_TWCS - | SBC_IDE_PIO2_TCSH - | SBC_IDE_PIO2_TCSOFF - | SBC_IDE_PIO2_TWP - | SBC_IDE_PIO2_TCSW - | SBC_IDE_PIO2_TPM - | SBC_IDE_PIO2_TA; - /* set configuration for RCS2# */ - mem_stcfg &= ~TS_MASK; - mem_stcfg &= ~TCSOE_MASK; - mem_stcfg &= ~TOECS_MASK; - mem_stcfg |= SBC_IDE_PIO2_TCSOE | SBC_IDE_PIO2_TOECS; - break; - - case 3: - /* set timing parameters for RCS2# */ - mem_sttime = SBC_IDE_PIO3_TWCS - | SBC_IDE_PIO3_TCSH - | SBC_IDE_PIO3_TCSOFF - | SBC_IDE_PIO3_TWP - | SBC_IDE_PIO3_TCSW - | SBC_IDE_PIO3_TPM - | SBC_IDE_PIO3_TA; - /* set configuration for RCS2# */ - mem_stcfg |= TS_MASK; - mem_stcfg &= ~TS_MASK; - mem_stcfg &= ~TCSOE_MASK; - mem_stcfg &= ~TOECS_MASK; - mem_stcfg |= SBC_IDE_PIO3_TCSOE | SBC_IDE_PIO3_TOECS; - - break; - - case 4: - /* set timing parameters for RCS2# */ - mem_sttime = SBC_IDE_PIO4_TWCS - | SBC_IDE_PIO4_TCSH - | SBC_IDE_PIO4_TCSOFF - | SBC_IDE_PIO4_TWP - | SBC_IDE_PIO4_TCSW - | SBC_IDE_PIO4_TPM - | SBC_IDE_PIO4_TA; - /* set configuration for RCS2# */ - mem_stcfg &= ~TS_MASK; - mem_stcfg &= ~TCSOE_MASK; - mem_stcfg &= ~TOECS_MASK; - mem_stcfg |= SBC_IDE_PIO4_TCSOE | SBC_IDE_PIO4_TOECS; - break; - } - - au_writel(mem_sttime,MEM_STTIME2); - au_writel(mem_stcfg,MEM_STCFG2); - - spin_unlock_irqrestore(&ide_tune_drive_spin_lock, flags); - - speed = pio + XFER_PIO_0; - ide_config_drive_speed(drive, speed); -} - -static int auide_tune_chipset (ide_drive_t *drive, u8 speed) -{ - u8 mode = 0; - int mem_sttime; - int mem_stcfg; - unsigned long flags; -#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA - struct hd_driveid *id = drive->id; - - /* - * Now see what the current drive is capable of, - * selecting UDMA only if the mate said it was ok. - */ - if (id && (id->capability & 1) && drive->autodma && - !__ide_dma_bad_drive(drive)) { - if (!mode && (id->field_valid & 2) && (id->dma_mword & 7)) { - if (id->dma_mword & 4) - mode = XFER_MW_DMA_2; - else if (id->dma_mword & 2) - mode = XFER_MW_DMA_1; - else if (id->dma_mword & 1) - mode = XFER_MW_DMA_0; - } - } -#endif - - spin_lock_irqsave(&ide_tune_chipset_spin_lock, flags); - - mem_sttime = 0; - mem_stcfg = au_readl(MEM_STCFG2); - - switch(speed) { - case XFER_PIO_4: - case XFER_PIO_3: - case XFER_PIO_2: - case XFER_PIO_1: - case XFER_PIO_0: - auide_tune_drive(drive, (speed - XFER_PIO_0)); - break; -#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA - case XFER_MW_DMA_2: - /* set timing parameters for RCS2# */ - mem_sttime = SBC_IDE_MDMA2_TWCS - | SBC_IDE_MDMA2_TCSH - | SBC_IDE_MDMA2_TCSOFF - | SBC_IDE_MDMA2_TWP - | SBC_IDE_MDMA2_TCSW - | SBC_IDE_MDMA2_TPM - | SBC_IDE_MDMA2_TA; - /* set configuration for RCS2# */ - mem_stcfg &= ~TS_MASK; - mem_stcfg &= ~TCSOE_MASK; - mem_stcfg &= ~TOECS_MASK; - mem_stcfg |= SBC_IDE_MDMA2_TCSOE | SBC_IDE_MDMA2_TOECS; - - mode = XFER_MW_DMA_2; - break; - case XFER_MW_DMA_1: - /* set timing parameters for RCS2# */ - mem_sttime = SBC_IDE_MDMA1_TWCS - | SBC_IDE_MDMA1_TCSH - | SBC_IDE_MDMA1_TCSOFF - | SBC_IDE_MDMA1_TWP - | SBC_IDE_MDMA1_TCSW - | SBC_IDE_MDMA1_TPM - | SBC_IDE_MDMA1_TA; - /* set configuration for RCS2# */ - mem_stcfg &= ~TS_MASK; - mem_stcfg &= ~TCSOE_MASK; - mem_stcfg &= ~TOECS_MASK; - mem_stcfg |= SBC_IDE_MDMA1_TCSOE | SBC_IDE_MDMA1_TOECS; - - mode = XFER_MW_DMA_1; - break; - case XFER_MW_DMA_0: - /* set timing parameters for RCS2# */ - mem_sttime = SBC_IDE_MDMA0_TWCS - | SBC_IDE_MDMA0_TCSH - | SBC_IDE_MDMA0_TCSOFF - | SBC_IDE_MDMA0_TWP - | SBC_IDE_MDMA0_TCSW - | SBC_IDE_MDMA0_TPM - | SBC_IDE_MDMA0_TA; - /* set configuration for RCS2# */ - mem_stcfg |= TS_MASK; - mem_stcfg &= ~TCSOE_MASK; - mem_stcfg &= ~TOECS_MASK; - mem_stcfg |= SBC_IDE_MDMA0_TCSOE | SBC_IDE_MDMA0_TOECS; - - mode = XFER_MW_DMA_0; - break; -#endif - default: - return 1; - } - - /* - * Tell the drive to switch to the new mode; abort on failure. - */ - if (!mode || ide_config_drive_speed(drive, mode)) - { - return 1; /* failure */ - } - - - au_writel(mem_sttime,MEM_STTIME2); - au_writel(mem_stcfg,MEM_STCFG2); - - spin_unlock_irqrestore(&ide_tune_chipset_spin_lock, flags); - - return 0; -} - -/* - * 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) -{ - for ( ; drive_table->id_model ; drive_table++){ - if ((!strcmp(drive_table->id_model, id->model)) && - ((strstr(drive_table->id_firmware, id->fw_rev)) || - (!strcmp(drive_table->id_firmware, "ALL"))) - ) - return 1; - } - return 0; -} - -static int auide_build_sglist(ide_drive_t *drive, struct request *rq) -{ - ide_hwif_t *hwif = drive->hwif; - _auide_hwif *ahwif = (_auide_hwif*)hwif->hwif_data; - struct scatterlist *sg = hwif->sg_table; - - ide_map_sg(drive, rq); - - if (rq_data_dir(rq) == READ) - hwif->sg_dma_direction = DMA_FROM_DEVICE; - else - hwif->sg_dma_direction = DMA_TO_DEVICE; - - return dma_map_sg(ahwif->dev, sg, hwif->sg_nents, - hwif->sg_dma_direction); -} - -static int auide_build_dmatable(ide_drive_t *drive) -{ - int i, iswrite, count = 0; - ide_hwif_t *hwif = HWIF(drive); - - struct request *rq = HWGROUP(drive)->rq; - - _auide_hwif *ahwif = (_auide_hwif*)hwif->hwif_data; - struct scatterlist *sg; - - iswrite = (rq_data_dir(rq) == WRITE); - /* Save for interrupt context */ - ahwif->drive = drive; - - /* Build sglist */ - hwif->sg_nents = i = auide_build_sglist(drive, rq); - - if (!i) - return 0; - - /* fill the descriptors */ - sg = hwif->sg_table; - while (i && sg_dma_len(sg)) { - u32 cur_addr; - u32 cur_len; - - cur_addr = sg_dma_address(sg); - cur_len = sg_dma_len(sg); - - while (cur_len) { - u32 flags = DDMA_FLAGS_NOIE; - unsigned int tc = (cur_len < 0xfe00)? cur_len: 0xfe00; - - if (++count >= PRD_ENTRIES) { - printk(KERN_WARNING "%s: DMA table too small\n", - drive->name); - goto use_pio_instead; - } - - /* Lets enable intr for the last descriptor only */ - if (1==i) - flags = DDMA_FLAGS_IE; - else - flags = DDMA_FLAGS_NOIE; - - if (iswrite) { - if(!put_source_flags(ahwif->tx_chan, - (void*)(page_address(sg->page) - + sg->offset), - tc, flags)) { - printk(KERN_ERR "%s failed %d\n", - __FUNCTION__, __LINE__); - } - } else - { - if(!put_dest_flags(ahwif->rx_chan, - (void*)(page_address(sg->page) - + sg->offset), - tc, flags)) { - printk(KERN_ERR "%s failed %d\n", - __FUNCTION__, __LINE__); - } - } - - cur_addr += tc; - cur_len -= tc; - } - sg++; - i--; - } - - if (count) - return 1; - -use_pio_instead: - dma_unmap_sg(ahwif->dev, - hwif->sg_table, - hwif->sg_nents, - hwif->sg_dma_direction); - - return 0; /* revert to PIO for this request */ -} - -static int auide_dma_end(ide_drive_t *drive) -{ - ide_hwif_t *hwif = HWIF(drive); - _auide_hwif *ahwif = (_auide_hwif*)hwif->hwif_data; - - if (hwif->sg_nents) { - dma_unmap_sg(ahwif->dev, hwif->sg_table, hwif->sg_nents, - hwif->sg_dma_direction); - hwif->sg_nents = 0; - } - - return 0; -} - -static void auide_dma_start(ide_drive_t *drive ) -{ -// printk("%s\n", __FUNCTION__); -} - -ide_startstop_t auide_dma_intr(ide_drive_t *drive) -{ - //printk("%s\n", __FUNCTION__); - - u8 stat = 0, dma_stat = 0; - - dma_stat = HWIF(drive)->ide_dma_end(drive); - stat = HWIF(drive)->INB(IDE_STATUS_REG); /* get drive status */ - if (OK_STAT(stat,DRIVE_READY,drive->bad_wstat|DRQ_STAT)) { - if (!dma_stat) { - struct request *rq = HWGROUP(drive)->rq; - - ide_end_request(drive, 1, rq->nr_sectors); - return ide_stopped; - } - printk(KERN_ERR "%s: dma_intr: bad DMA status (dma_stat=%x)\n", - drive->name, dma_stat); - } - return ide_error(drive, "dma_intr", stat); -} - -static void auide_dma_exec_cmd(ide_drive_t *drive, u8 command) -{ - //printk("%s\n", __FUNCTION__); - - /* issue cmd to drive */ - ide_execute_command(drive, command, &auide_dma_intr, - (2*WAIT_CMD), NULL); -} - -static int auide_dma_setup(ide_drive_t *drive) -{ -// printk("%s\n", __FUNCTION__); - - if (drive->media != ide_disk) - return 1; - - if (!auide_build_dmatable(drive)) - /* try PIO instead of DMA */ - return 1; - - drive->waiting_for_dma = 1; - - return 0; -} - -static int auide_dma_check(ide_drive_t *drive) -{ -// printk("%s\n", __FUNCTION__); - -#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA - if( !dbdma_init_done ){ - auide_hwif.white_list = in_drive_list(drive->id, - dma_white_list); - auide_hwif.black_list = in_drive_list(drive->id, - dma_black_list); - auide_hwif.drive = drive; - auide_ddma_init(&auide_hwif); - dbdma_init_done = 1; - } -#endif - - /* Is the drive in our DMA black list? */ - if ( auide_hwif.black_list ) { - drive->using_dma = 0; - printk("%s found in dma_blacklist[]! Disabling DMA.\n", - drive->id->model); - } - else - drive->using_dma = 1; - - return HWIF(drive)->ide_dma_host_on(drive); -} - -static int auide_dma_test_irq(ide_drive_t *drive) -{ -// printk("%s\n", __FUNCTION__); - - if (!drive->waiting_for_dma) - printk(KERN_WARNING "%s: ide_dma_test_irq \ - called while not waiting\n", drive->name); - - /* If dbdma didn't execute the STOP command yet, the - * active bit is still set - */ - drive->waiting_for_dma++; - if (drive->waiting_for_dma >= DMA_WAIT_TIMEOUT) { - printk(KERN_WARNING "%s: timeout waiting for ddma to \ - complete\n", drive->name); - return 1; - } - udelay(10); - return 0; -} - -static int auide_dma_host_on(ide_drive_t *drive) -{ -// printk("%s\n", __FUNCTION__); - return 0; -} - -static int auide_dma_on(ide_drive_t *drive) -{ -// printk("%s\n", __FUNCTION__); - drive->using_dma = 1; - return auide_dma_host_on(drive); -} - - -static int auide_dma_host_off(ide_drive_t *drive) -{ -// printk("%s\n", __FUNCTION__); - return 0; -} - -static int auide_dma_off_quietly(ide_drive_t *drive) -{ -// printk("%s\n", __FUNCTION__); - drive->using_dma = 0; - return auide_dma_host_off(drive); -} - -static int auide_dma_lostirq(ide_drive_t *drive) -{ -// printk("%s\n", __FUNCTION__); - - printk(KERN_ERR "%s: IRQ lost\n", drive->name); - return 0; -} - -static void auide_ddma_tx_callback(int irq, void *param, struct pt_regs *regs) -{ -// printk("%s\n", __FUNCTION__); - - _auide_hwif *ahwif = (_auide_hwif*)param; - ahwif->drive->waiting_for_dma = 0; - return; -} - -static void auide_ddma_rx_callback(int irq, void *param, struct pt_regs *regs) -{ -// printk("%s\n", __FUNCTION__); - - _auide_hwif *ahwif = (_auide_hwif*)param; - ahwif->drive->waiting_for_dma = 0; - return; -} - -static int auide_dma_timeout(ide_drive_t *drive) -{ -// printk("%s\n", __FUNCTION__); - - printk(KERN_ERR "%s: DMA timeout occurred: ", drive->name); - - if (HWIF(drive)->ide_dma_test_irq(drive)) - return 0; - - return HWIF(drive)->ide_dma_end(drive); -} -#endif /* end CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA */ - - -static int auide_ddma_init( _auide_hwif *auide ) -{ -// printk("%s\n", __FUNCTION__); - - dbdev_tab_t source_dev_tab; -#if defined(CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA) - dbdev_tab_t target_dev_tab; - ide_hwif_t *hwif = auide->hwif; - char warning_output [2][80]; - int i; -#endif - - /* Add our custom device to DDMA device table */ - /* Create our new device entries in the table */ -#if defined(CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA) - source_dev_tab.dev_id = AU1XXX_ATA_DDMA_REQ; - - if( auide->white_list || auide->black_list ){ - source_dev_tab.dev_tsize = 8; - source_dev_tab.dev_devwidth = 32; - source_dev_tab.dev_physaddr = (u32)AU1XXX_ATA_PHYS_ADDR; - source_dev_tab.dev_intlevel = 0; - source_dev_tab.dev_intpolarity = 0; - - /* init device table for target - static bus controller - */ - target_dev_tab.dev_id = DSCR_CMD0_ALWAYS; - target_dev_tab.dev_tsize = 8; - target_dev_tab.dev_devwidth = 32; - target_dev_tab.dev_physaddr = (u32)AU1XXX_ATA_PHYS_ADDR; - target_dev_tab.dev_intlevel = 0; - target_dev_tab.dev_intpolarity = 0; - target_dev_tab.dev_flags = DEV_FLAGS_ANYUSE; - } - else{ - source_dev_tab.dev_tsize = 1; - source_dev_tab.dev_devwidth = 16; - source_dev_tab.dev_physaddr = (u32)AU1XXX_ATA_PHYS_ADDR; - source_dev_tab.dev_intlevel = 0; - source_dev_tab.dev_intpolarity = 0; - - /* init device table for target - static bus controller - */ - target_dev_tab.dev_id = DSCR_CMD0_ALWAYS; - target_dev_tab.dev_tsize = 1; - target_dev_tab.dev_devwidth = 16; - target_dev_tab.dev_physaddr = (u32)AU1XXX_ATA_PHYS_ADDR; - target_dev_tab.dev_intlevel = 0; - target_dev_tab.dev_intpolarity = 0; - target_dev_tab.dev_flags = DEV_FLAGS_ANYUSE; - - sprintf(&warning_output[0][0], - "%s is not on ide driver white list.", - auide_hwif.drive->id->model); - for ( i=strlen(&warning_output[0][0]) ; i<76; i++ ){ - sprintf(&warning_output[0][i]," "); - } - - sprintf(&warning_output[1][0], - "To add %s please read 'Documentation/mips/AU1xxx_IDE.README'.", - auide_hwif.drive->id->model); - for ( i=strlen(&warning_output[1][0]) ; i<76; i++ ){ - sprintf(&warning_output[1][i]," "); - } - - printk("\n****************************************"); - printk("****************************************\n"); - printk("* %s *\n",&warning_output[0][0]); - printk("* Switch to safe MWDMA Mode! "); - printk(" *\n"); - printk("* %s *\n",&warning_output[1][0]); - printk("****************************************"); - printk("****************************************\n\n"); - } -#else - source_dev_tab.dev_id = DSCR_CMD0_ALWAYS; - source_dev_tab.dev_tsize = 8; - source_dev_tab.dev_devwidth = 32; - source_dev_tab.dev_physaddr = (u32)AU1XXX_ATA_PHYS_ADDR; - source_dev_tab.dev_intlevel = 0; - source_dev_tab.dev_intpolarity = 0; -#endif - -#if CONFIG_BLK_DEV_IDE_AU1XXX_BURSTABLE_ON - /* set flags for tx channel */ - source_dev_tab.dev_flags = DEV_FLAGS_OUT - | DEV_FLAGS_SYNC - | DEV_FLAGS_BURSTABLE; - auide->tx_dev_id = au1xxx_ddma_add_device( &source_dev_tab ); - /* set flags for rx channel */ - source_dev_tab.dev_flags = DEV_FLAGS_IN - | DEV_FLAGS_SYNC - | DEV_FLAGS_BURSTABLE; - auide->rx_dev_id = au1xxx_ddma_add_device( &source_dev_tab ); -#else - /* set flags for tx channel */ - source_dev_tab.dev_flags = DEV_FLAGS_OUT | DEV_FLAGS_SYNC; - auide->tx_dev_id = au1xxx_ddma_add_device( &source_dev_tab ); - /* set flags for rx channel */ - source_dev_tab.dev_flags = DEV_FLAGS_IN | DEV_FLAGS_SYNC; - auide->rx_dev_id = au1xxx_ddma_add_device( &source_dev_tab ); -#endif - -#if defined(CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA) - - auide->target_dev_id = au1xxx_ddma_add_device(&target_dev_tab); - - /* Get a channel for TX */ - auide->tx_chan = au1xxx_dbdma_chan_alloc(auide->target_dev_id, - auide->tx_dev_id, - auide_ddma_tx_callback, - (void*)auide); - /* Get a channel for RX */ - auide->rx_chan = au1xxx_dbdma_chan_alloc(auide->rx_dev_id, - auide->target_dev_id, - auide_ddma_rx_callback, - (void*)auide); -#else /* CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA */ - /* - * Note: if call back is not enabled, update ctp->cur_ptr manually - */ - auide->tx_chan = au1xxx_dbdma_chan_alloc(DSCR_CMD0_ALWAYS, - auide->tx_dev_id, - NULL, - (void*)auide); - auide->rx_chan = au1xxx_dbdma_chan_alloc(auide->rx_dev_id, - DSCR_CMD0_ALWAYS, - NULL, - (void*)auide); -#endif - auide->tx_desc_head = (void*)au1xxx_dbdma_ring_alloc(auide->tx_chan, - NUM_DESCRIPTORS); - auide->rx_desc_head = (void*)au1xxx_dbdma_ring_alloc(auide->rx_chan, - NUM_DESCRIPTORS); - -#if defined(CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA) - hwif->dmatable_cpu = dma_alloc_coherent(auide->dev, - PRD_ENTRIES * PRD_BYTES, /* 1 Page */ - &hwif->dmatable_dma, GFP_KERNEL); - - auide->sg_table = kmalloc(sizeof(struct scatterlist) * PRD_ENTRIES, - GFP_KERNEL|GFP_DMA); - if (auide->sg_table == NULL) { - return -ENOMEM; - } -#endif - au1xxx_dbdma_start( auide->tx_chan ); - au1xxx_dbdma_start( auide->rx_chan ); - return 0; -} - -static void auide_setup_ports(hw_regs_t *hw, _auide_hwif *ahwif) -{ - int i; -#define ide_ioreg_t unsigned long - ide_ioreg_t *ata_regs = hw->io_ports; - - /* fixme */ - for (i = 0; i < IDE_CONTROL_OFFSET; i++) { - *ata_regs++ = (ide_ioreg_t) ahwif->regbase - + (ide_ioreg_t)(i << AU1XXX_ATA_REG_OFFSET); - } - - /* set the Alternative Status register */ - *ata_regs = (ide_ioreg_t) ahwif->regbase - + (ide_ioreg_t)(14 << AU1XXX_ATA_REG_OFFSET); -} - -static int au_ide_probe(struct device *dev) -{ - struct platform_device *pdev = to_platform_device(dev); - _auide_hwif *ahwif = &auide_hwif; - ide_hwif_t *hwif; - struct resource *res; - int ret = 0; - -#if defined(CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA) - char *mode = "MWDMA2"; -#elif defined(CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA) - char *mode = "PIO+DDMA(offload)"; -#endif - - memset(&auide_hwif, 0, sizeof(_auide_hwif)); - auide_hwif.dev = 0; - - ahwif->dev = dev; - ahwif->irq = platform_get_irq(pdev, 0); - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - - if (res == NULL) { - pr_debug("%s %d: no base address\n", DRV_NAME, pdev->id); - ret = -ENODEV; - goto out; - } - - if (!request_mem_region (res->start, res->end-res->start, pdev->name)) { - pr_debug("%s: request_mem_region failed\n", DRV_NAME); - ret = -EBUSY; - goto out; - } - - ahwif->regbase = (u32)ioremap(res->start, res->end-res->start); - if (ahwif->regbase == 0) { - ret = -ENOMEM; - goto out; - } - - hwif = &ide_hwifs[pdev->id]; - hw_regs_t *hw = &hwif->hw; - hwif->irq = hw->irq = ahwif->irq; - hwif->chipset = ide_au1xxx; - - auide_setup_ports(hw, ahwif); - memcpy(hwif->io_ports, hw->io_ports, sizeof(hwif->io_ports)); - -#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_SEQTS_PER_RQ - hwif->rqsize = CONFIG_BLK_DEV_IDE_AU1XXX_SEQTS_PER_RQ; - hwif->rqsize = ((hwif->rqsize > AU1XXX_ATA_RQSIZE) - || (hwif->rqsize < 32)) ? AU1XXX_ATA_RQSIZE : hwif->rqsize; -#else /* if kernel config is not set */ - hwif->rqsize = AU1XXX_ATA_RQSIZE; -#endif - - hwif->ultra_mask = 0x0; /* Disable Ultra DMA */ -#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA - hwif->mwdma_mask = 0x07; /* Multimode-2 DMA */ - hwif->swdma_mask = 0x07; -#else - hwif->mwdma_mask = 0x0; - hwif->swdma_mask = 0x0; -#endif - //hwif->noprobe = !hwif->io_ports[IDE_DATA_OFFSET]; - hwif->noprobe = 0; - hwif->drives[0].unmask = 1; - hwif->drives[1].unmask = 1; - - /* hold should be on in all cases */ - hwif->hold = 1; - hwif->mmio = 2; - - /* set up local I/O function entry points */ - hwif->INB = auide_inb; - hwif->INW = auide_inw; - hwif->INL = auide_inl; - hwif->INSW = auide_insw; - hwif->INSL = auide_insl; - hwif->OUTB = auide_outb; - hwif->OUTBSYNC = auide_outbsync; - hwif->OUTW = auide_outw; - hwif->OUTL = auide_outl; - hwif->OUTSW = auide_outsw; - hwif->OUTSL = auide_outsl; - - hwif->tuneproc = &auide_tune_drive; - hwif->speedproc = &auide_tune_chipset; - -#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA - hwif->ide_dma_off_quietly = &auide_dma_off_quietly; - hwif->ide_dma_timeout = &auide_dma_timeout; - - hwif->ide_dma_check = &auide_dma_check; - hwif->dma_exec_cmd = &auide_dma_exec_cmd; - hwif->dma_start = &auide_dma_start; - hwif->ide_dma_end = &auide_dma_end; - hwif->dma_setup = &auide_dma_setup; - hwif->ide_dma_test_irq = &auide_dma_test_irq; - hwif->ide_dma_host_off = &auide_dma_host_off; - hwif->ide_dma_host_on = &auide_dma_host_on; - hwif->ide_dma_lostirq = &auide_dma_lostirq; - hwif->ide_dma_on = &auide_dma_on; - - hwif->autodma = 1; - hwif->drives[0].autodma = hwif->autodma; - hwif->drives[1].autodma = hwif->autodma; - hwif->atapi_dma = 1; - hwif->drives[0].using_dma = 1; - hwif->drives[1].using_dma = 1; -#else /* !CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA */ - hwif->autodma = 0; - hwif->channel = 0; - hwif->hold = 1; - hwif->select_data = 0; /* no chipset-specific code */ - hwif->config_data = 0; /* no chipset-specific code */ - - hwif->drives[0].autodma = 0; - hwif->drives[0].drive_data = 0; /* no drive data */ - hwif->drives[0].using_dma = 0; - hwif->drives[0].waiting_for_dma = 0; - hwif->drives[0].autotune = 1; /* 1=autotune, 2=noautotune, 0=default */ - /* secondary hdd not supported */ - hwif->drives[1].autodma = 0; - - hwif->drives[1].drive_data = 0; - hwif->drives[1].using_dma = 0; - hwif->drives[1].waiting_for_dma = 0; - hwif->drives[1].autotune = 2; /* 1=autotune, 2=noautotune, 0=default */ -#endif - hwif->drives[0].io_32bit = 0; /* 0=16-bit, 1=32-bit, 2/3=32bit+sync */ - hwif->drives[1].io_32bit = 0; /* 0=16-bit, 1=32-bit, 2/3=32bit+sync */ - - /*Register Driver with PM Framework*/ -#ifdef CONFIG_PM - auide_hwif.pm.lock = SPIN_LOCK_UNLOCKED; - auide_hwif.pm.stopped = 0; - - auide_hwif.pm.dev = new_au1xxx_power_device( "ide", - &au1200ide_pm_callback, - NULL); - if ( auide_hwif.pm.dev == NULL ) - printk(KERN_INFO "Unable to create a power management \ - device entry for the au1200-IDE.\n"); - else - printk(KERN_INFO "Power management device entry for the \ - au1200-IDE loaded.\n"); -#endif - - auide_hwif.hwif = hwif; - hwif->hwif_data = &auide_hwif; - -#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA - auide_ddma_init(&auide_hwif); - dbdma_init_done = 1; -#endif - - probe_hwif_init(hwif); - dev_set_drvdata(dev, hwif); - - printk(KERN_INFO "Au1xxx IDE(builtin) configured for %s\n", mode ); - -out: - return ret; -} - -static int au_ide_remove(struct device *dev) -{ - struct platform_device *pdev = to_platform_device(dev); - struct resource *res; - ide_hwif_t *hwif = dev_get_drvdata(dev); - _auide_hwif *ahwif = &auide_hwif; - - ide_unregister(hwif - ide_hwifs); - - iounmap((void *)ahwif->regbase); - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - release_mem_region(res->start, res->end - res->start); - - return 0; -} - -static struct device_driver au1200_ide_driver = { - .name = "au1200-ide", - .bus = &platform_bus_type, - .probe = au_ide_probe, - .remove = au_ide_remove, -}; - -static int __init au_ide_init(void) -{ - return driver_register(&au1200_ide_driver); -} - -static void __init au_ide_exit(void) -{ - driver_unregister(&au1200_ide_driver); -} - -#ifdef CONFIG_PM -int au1200ide_pm_callback( au1xxx_power_dev_t *dev,\ - au1xxx_request_t request, void *data) { - - unsigned int d, err = 0; - unsigned long flags; - - spin_lock_irqsave(auide_hwif.pm.lock, flags); - - switch (request){ - case AU1XXX_PM_SLEEP: - err = au1xxxide_pm_sleep(dev); - break; - case AU1XXX_PM_WAKEUP: - d = *((unsigned int*)data); - if ( d > 0 && d <= 99) { - err = au1xxxide_pm_standby(dev); - } - else { - err = au1xxxide_pm_resume(dev); - } - break; - case AU1XXX_PM_GETSTATUS: - err = au1xxxide_pm_getstatus(dev); - break; - case AU1XXX_PM_ACCESS: - err = au1xxxide_pm_access(dev); - break; - case AU1XXX_PM_IDLE: - err = au1xxxide_pm_idle(dev); - break; - case AU1XXX_PM_CLEANUP: - err = au1xxxide_pm_cleanup(dev); - break; - default: - err = -1; - break; - } - - spin_unlock_irqrestore(auide_hwif.pm.lock, flags); - - return err; -} - -static int au1xxxide_pm_standby( au1xxx_power_dev_t *dev ) { - return 0; -} - -static int au1xxxide_pm_sleep( au1xxx_power_dev_t *dev ) { - - int retval; - ide_hwif_t *hwif = auide_hwif.hwif; - struct request rq; - struct request_pm_state rqpm; - ide_task_t args; - - if(auide_hwif.pm.stopped) - return -1; - - /* - * wait until hard disc is ready - */ - if ( wait_for_ready(&hwif->drives[0], 35000) ) { - printk("Wait for drive sleep timeout!\n"); - retval = -1; - } - - /* - * sequenz to tell the high level ide driver that pm is resuming - */ - memset(&rq, 0, sizeof(rq)); - memset(&rqpm, 0, sizeof(rqpm)); - memset(&args, 0, sizeof(args)); - rq.flags = REQ_PM_SUSPEND; - rq.special = &args; - rq.pm = &rqpm; - rqpm.pm_step = ide_pm_state_start_suspend; - rqpm.pm_state = PMSG_SUSPEND; - - retval = ide_do_drive_cmd(&hwif->drives[0], &rq, ide_wait); - - if (wait_for_ready (&hwif->drives[0], 35000)) { - printk("Wait for drive sleep timeout!\n"); - retval = -1; - } - - /* - * stop dbdma channels - */ - au1xxx_dbdma_reset(auide_hwif.tx_chan); - au1xxx_dbdma_reset(auide_hwif.rx_chan); - - auide_hwif.pm.stopped = 1; - - return retval; -} - -static int au1xxxide_pm_resume( au1xxx_power_dev_t *dev ) { - - int retval; - ide_hwif_t *hwif = auide_hwif.hwif; - struct request rq; - struct request_pm_state rqpm; - ide_task_t args; - - if(!auide_hwif.pm.stopped) - return -1; - - /* - * start dbdma channels - */ - au1xxx_dbdma_start(auide_hwif.tx_chan); - au1xxx_dbdma_start(auide_hwif.rx_chan); - - /* - * wait until hard disc is ready - */ - if (wait_for_ready ( &hwif->drives[0], 35000)) { - printk("Wait for drive wake up timeout!\n"); - retval = -1; - } - - /* - * sequenz to tell the high level ide driver that pm is resuming - */ - memset(&rq, 0, sizeof(rq)); - memset(&rqpm, 0, sizeof(rqpm)); - memset(&args, 0, sizeof(args)); - rq.flags = REQ_PM_RESUME; - rq.special = &args; - rq.pm = &rqpm; - rqpm.pm_step = ide_pm_state_start_resume; - rqpm.pm_state = PMSG_ON; - - retval = ide_do_drive_cmd(&hwif->drives[0], &rq, ide_head_wait); - - /* - * wait for hard disc - */ - if ( wait_for_ready(&hwif->drives[0], 35000) ) { - printk("Wait for drive wake up timeout!\n"); - retval = -1; - } - - auide_hwif.pm.stopped = 0; - - return retval; -} - -static int au1xxxide_pm_getstatus( au1xxx_power_dev_t *dev ) { - return dev->cur_state; -} - -static int au1xxxide_pm_access( au1xxx_power_dev_t *dev ) { - if (dev->cur_state != AWAKE_STATE) - return 0; - else - return -1; -} - -static int au1xxxide_pm_idle( au1xxx_power_dev_t *dev ) { - return 0; -} - -static int au1xxxide_pm_cleanup( au1xxx_power_dev_t *dev ) { - return 0; -} -#endif /* CONFIG_PM */ - -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("AU1200 IDE driver"); - -module_init(au_ide_init); -module_exit(au_ide_exit); +/* + * linux/drivers/ide/mips/au1xxx-ide.c 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. + */ +#undef REALLY_SLOW_IO /* most systems can safely undef this */ + +#include +#include +#include +#include +#include + +#include +#include +#include + +#include + +#include "ide-timing.h" + +#include +#include +#include + +#include + +#define DRV_NAME "au1200-ide" +#define DRV_VERSION "1.0" +#define DRV_AUTHOR "Enrico Walther / Pete Popov " + +/* enable the burstmode in the dbdma */ +#define IDE_AU1XXX_BURSTMODE 1 + +static _auide_hwif auide_hwif; +static int dbdma_init_done; + +#if defined(CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA) + +void auide_insw(unsigned long port, void *addr, u32 count) +{ + _auide_hwif *ahwif = &auide_hwif; + chan_tab_t *ctp; + au1x_ddma_desc_t *dp; + + if(!put_dest_flags(ahwif->rx_chan, (void*)addr, count << 1, + DDMA_FLAGS_NOIE)) { + printk(KERN_ERR "%s failed %d\n", __FUNCTION__, __LINE__); + return; + } + ctp = *((chan_tab_t **)ahwif->rx_chan); + dp = ctp->cur_ptr; + while (dp->dscr_cmd0 & DSCR_CMD0_V) + ; + ctp->cur_ptr = au1xxx_ddma_get_nextptr_virt(dp); +} + +void auide_outsw(unsigned long port, void *addr, u32 count) +{ + _auide_hwif *ahwif = &auide_hwif; + chan_tab_t *ctp; + au1x_ddma_desc_t *dp; + + if(!put_source_flags(ahwif->tx_chan, (void*)addr, + count << 1, DDMA_FLAGS_NOIE)) { + printk(KERN_ERR "%s failed %d\n", __FUNCTION__, __LINE__); + return; + } + ctp = *((chan_tab_t **)ahwif->tx_chan); + dp = ctp->cur_ptr; + while (dp->dscr_cmd0 & DSCR_CMD0_V) + ; + ctp->cur_ptr = au1xxx_ddma_get_nextptr_virt(dp); +} + +#endif + +static void auide_tune_drive(ide_drive_t *drive, byte pio) +{ + int mem_sttime; + int mem_stcfg; + u8 speed; + + /* get the best pio mode for the drive */ + pio = ide_get_best_pio_mode(drive, pio, 4, NULL); + + printk(KERN_INFO "%s: setting Au1XXX IDE to PIO mode%d\n", + drive->name, pio); + + mem_sttime = 0; + mem_stcfg = au_readl(MEM_STCFG2); + + /* set pio mode! */ + switch(pio) { + case 0: + mem_sttime = SBC_IDE_TIMING(PIO0); + + /* set configuration for RCS2# */ + mem_stcfg |= TS_MASK; + mem_stcfg &= ~TCSOE_MASK; + mem_stcfg &= ~TOECS_MASK; + mem_stcfg |= SBC_IDE_PIO0_TCSOE | SBC_IDE_PIO0_TOECS; + break; + + case 1: + mem_sttime = SBC_IDE_TIMING(PIO1); + + /* set configuration for RCS2# */ + mem_stcfg |= TS_MASK; + mem_stcfg &= ~TCSOE_MASK; + mem_stcfg &= ~TOECS_MASK; + mem_stcfg |= SBC_IDE_PIO1_TCSOE | SBC_IDE_PIO1_TOECS; + break; + + case 2: + mem_sttime = SBC_IDE_TIMING(PIO2); + + /* set configuration for RCS2# */ + mem_stcfg &= ~TS_MASK; + mem_stcfg &= ~TCSOE_MASK; + mem_stcfg &= ~TOECS_MASK; + mem_stcfg |= SBC_IDE_PIO2_TCSOE | SBC_IDE_PIO2_TOECS; + break; + + case 3: + mem_sttime = SBC_IDE_TIMING(PIO3); + + /* set configuration for RCS2# */ + mem_stcfg &= ~TS_MASK; + mem_stcfg &= ~TCSOE_MASK; + mem_stcfg &= ~TOECS_MASK; + mem_stcfg |= SBC_IDE_PIO3_TCSOE | SBC_IDE_PIO3_TOECS; + + break; + + case 4: + mem_sttime = SBC_IDE_TIMING(PIO4); + + /* set configuration for RCS2# */ + mem_stcfg &= ~TS_MASK; + mem_stcfg &= ~TCSOE_MASK; + mem_stcfg &= ~TOECS_MASK; + mem_stcfg |= SBC_IDE_PIO4_TCSOE | SBC_IDE_PIO4_TOECS; + break; + } + + au_writel(mem_sttime,MEM_STTIME2); + au_writel(mem_stcfg,MEM_STCFG2); + + speed = pio + XFER_PIO_0; + ide_config_drive_speed(drive, speed); +} + +static int auide_tune_chipset (ide_drive_t *drive, u8 speed) +{ + int mem_sttime; + int mem_stcfg; + unsigned long mode; + +#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA + if (ide_use_dma(drive)) + mode = ide_dma_speed(drive, 0); +#endif + + mem_sttime = 0; + mem_stcfg = au_readl(MEM_STCFG2); + + if (speed >= XFER_PIO_0 && speed <= XFER_PIO_4) { + auide_tune_drive(drive, speed - XFER_PIO_0); + return 0; + } + + switch(speed) { +#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA + case XFER_MW_DMA_2: + mem_sttime = SBC_IDE_TIMING(MDMA2); + + /* set configuration for RCS2# */ + mem_stcfg &= ~TS_MASK; + mem_stcfg &= ~TCSOE_MASK; + mem_stcfg &= ~TOECS_MASK; + mem_stcfg |= SBC_IDE_MDMA2_TCSOE | SBC_IDE_MDMA2_TOECS; + + mode = XFER_MW_DMA_2; + break; + case XFER_MW_DMA_1: + mem_sttime = SBC_IDE_TIMING(MDMA1); + + /* set configuration for RCS2# */ + mem_stcfg &= ~TS_MASK; + mem_stcfg &= ~TCSOE_MASK; + mem_stcfg &= ~TOECS_MASK; + mem_stcfg |= SBC_IDE_MDMA1_TCSOE | SBC_IDE_MDMA1_TOECS; + + mode = XFER_MW_DMA_1; + break; + case XFER_MW_DMA_0: + mem_sttime = SBC_IDE_TIMING(MDMA0); + + /* set configuration for RCS2# */ + mem_stcfg |= TS_MASK; + mem_stcfg &= ~TCSOE_MASK; + mem_stcfg &= ~TOECS_MASK; + mem_stcfg |= SBC_IDE_MDMA0_TCSOE | SBC_IDE_MDMA0_TOECS; + + mode = XFER_MW_DMA_0; + break; +#endif + default: + return 1; + } + + if (ide_config_drive_speed(drive, mode)) + return 1; + + au_writel(mem_sttime,MEM_STTIME2); + au_writel(mem_stcfg,MEM_STCFG2); + + return 0; +} + +/* + * Multi-Word DMA + DbDMA functions + */ + +#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA + +static int auide_build_sglist(ide_drive_t *drive, struct request *rq) +{ + ide_hwif_t *hwif = drive->hwif; + _auide_hwif *ahwif = (_auide_hwif*)hwif->hwif_data; + struct scatterlist *sg = hwif->sg_table; + + ide_map_sg(drive, rq); + + if (rq_data_dir(rq) == READ) + hwif->sg_dma_direction = DMA_FROM_DEVICE; + else + hwif->sg_dma_direction = DMA_TO_DEVICE; + + return dma_map_sg(ahwif->dev, sg, hwif->sg_nents, + hwif->sg_dma_direction); +} + +static int auide_build_dmatable(ide_drive_t *drive) +{ + int i, iswrite, count = 0; + ide_hwif_t *hwif = HWIF(drive); + + struct request *rq = HWGROUP(drive)->rq; + + _auide_hwif *ahwif = (_auide_hwif*)hwif->hwif_data; + struct scatterlist *sg; + + iswrite = (rq_data_dir(rq) == WRITE); + /* Save for interrupt context */ + ahwif->drive = drive; + + /* Build sglist */ + hwif->sg_nents = i = auide_build_sglist(drive, rq); + + if (!i) + return 0; + + /* fill the descriptors */ + sg = hwif->sg_table; + while (i && sg_dma_len(sg)) { + u32 cur_addr; + u32 cur_len; + + cur_addr = sg_dma_address(sg); + cur_len = sg_dma_len(sg); + + while (cur_len) { + u32 flags = DDMA_FLAGS_NOIE; + unsigned int tc = (cur_len < 0xfe00)? cur_len: 0xfe00; + + if (++count >= PRD_ENTRIES) { + printk(KERN_WARNING "%s: DMA table too small\n", + drive->name); + goto use_pio_instead; + } + + /* Lets enable intr for the last descriptor only */ + if (1==i) + flags = DDMA_FLAGS_IE; + else + flags = DDMA_FLAGS_NOIE; + + if (iswrite) { + if(!put_source_flags(ahwif->tx_chan, + (void*)(page_address(sg->page) + + sg->offset), + tc, flags)) { + printk(KERN_ERR "%s failed %d\n", + __FUNCTION__, __LINE__); + } + } else + { + if(!put_dest_flags(ahwif->rx_chan, + (void*)(page_address(sg->page) + + sg->offset), + tc, flags)) { + printk(KERN_ERR "%s failed %d\n", + __FUNCTION__, __LINE__); + } + } + + cur_addr += tc; + cur_len -= tc; + } + sg++; + i--; + } + + if (count) + return 1; + + use_pio_instead: + dma_unmap_sg(ahwif->dev, + hwif->sg_table, + hwif->sg_nents, + hwif->sg_dma_direction); + + return 0; /* revert to PIO for this request */ +} + +static int auide_dma_end(ide_drive_t *drive) +{ + ide_hwif_t *hwif = HWIF(drive); + _auide_hwif *ahwif = (_auide_hwif*)hwif->hwif_data; + + if (hwif->sg_nents) { + dma_unmap_sg(ahwif->dev, hwif->sg_table, hwif->sg_nents, + hwif->sg_dma_direction); + hwif->sg_nents = 0; + } + + return 0; +} + +static void auide_dma_start(ide_drive_t *drive ) +{ +} + + +static void auide_dma_exec_cmd(ide_drive_t *drive, u8 command) +{ + /* issue cmd to drive */ + ide_execute_command(drive, command, &ide_dma_intr, + (2*WAIT_CMD), NULL); +} + +static int auide_dma_setup(ide_drive_t *drive) +{ + struct request *rq = HWGROUP(drive)->rq; + + if (!auide_build_dmatable(drive)) { + ide_map_sg(drive, rq); + return 1; + } + + drive->waiting_for_dma = 1; + return 0; +} + +static int auide_dma_check(ide_drive_t *drive) +{ + u8 speed; + +#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA + + if( dbdma_init_done == 0 ){ + auide_hwif.white_list = ide_in_drive_list(drive->id, + dma_white_list); + auide_hwif.black_list = ide_in_drive_list(drive->id, + dma_black_list); + auide_hwif.drive = drive; + auide_ddma_init(&auide_hwif); + dbdma_init_done = 1; + } +#endif + + /* Is the drive in our DMA black list? */ + + if ( auide_hwif.black_list ) { + drive->using_dma = 0; + + /* Borrowed the warning message from ide-dma.c */ + + printk(KERN_WARNING "%s: Disabling DMA for %s (blacklisted)\n", + drive->name, drive->id->model); + } + else + drive->using_dma = 1; + + speed = ide_find_best_mode(drive, XFER_PIO | XFER_MWDMA); + + if (drive->autodma && (speed & XFER_MODE) != XFER_PIO) + return HWIF(drive)->ide_dma_on(drive); + + return HWIF(drive)->ide_dma_off_quietly(drive); +} + +static int auide_dma_test_irq(ide_drive_t *drive) +{ + if (drive->waiting_for_dma == 0) + printk(KERN_WARNING "%s: ide_dma_test_irq \ + called while not waiting\n", drive->name); + + /* If dbdma didn't execute the STOP command yet, the + * active bit is still set + */ + drive->waiting_for_dma++; + if (drive->waiting_for_dma >= DMA_WAIT_TIMEOUT) { + printk(KERN_WARNING "%s: timeout waiting for ddma to \ + complete\n", drive->name); + return 1; + } + udelay(10); + return 0; +} + +static int auide_dma_host_on(ide_drive_t *drive) +{ + return 0; +} + +static int auide_dma_on(ide_drive_t *drive) +{ + drive->using_dma = 1; + return auide_dma_host_on(drive); +} + + +static int auide_dma_host_off(ide_drive_t *drive) +{ + return 0; +} + +static int auide_dma_off_quietly(ide_drive_t *drive) +{ + drive->using_dma = 0; + return auide_dma_host_off(drive); +} + +static int auide_dma_lostirq(ide_drive_t *drive) +{ + printk(KERN_ERR "%s: IRQ lost\n", drive->name); + return 0; +} + +static void auide_ddma_tx_callback(int irq, void *param, struct pt_regs *regs) +{ + _auide_hwif *ahwif = (_auide_hwif*)param; + ahwif->drive->waiting_for_dma = 0; +} + +static void auide_ddma_rx_callback(int irq, void *param, struct pt_regs *regs) +{ + _auide_hwif *ahwif = (_auide_hwif*)param; + ahwif->drive->waiting_for_dma = 0; +} + +#endif /* end CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA */ + +static void auide_init_dbdma_dev(dbdev_tab_t *dev, u32 dev_id, u32 tsize, u32 devwidth, u32 flags) +{ + dev->dev_id = dev_id; + dev->dev_physaddr = (u32)AU1XXX_ATA_PHYS_ADDR; + dev->dev_intlevel = 0; + dev->dev_intpolarity = 0; + dev->dev_tsize = tsize; + dev->dev_devwidth = devwidth; + dev->dev_flags = flags; +} + +#if defined(CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA) + +static int auide_dma_timeout(ide_drive_t *drive) +{ +// printk("%s\n", __FUNCTION__); + + printk(KERN_ERR "%s: DMA timeout occurred: ", drive->name); + + if (HWIF(drive)->ide_dma_test_irq(drive)) + return 0; + + return HWIF(drive)->ide_dma_end(drive); +} + + +static int auide_ddma_init(_auide_hwif *auide) { + + dbdev_tab_t source_dev_tab, target_dev_tab; + u32 dev_id, tsize, devwidth, flags; + ide_hwif_t *hwif = auide->hwif; + + dev_id = AU1XXX_ATA_DDMA_REQ; + + if (auide->white_list || auide->black_list) { + tsize = 8; + devwidth = 32; + } + else { + tsize = 1; + devwidth = 16; + + printk(KERN_ERR "au1xxx-ide: %s is not on ide driver whitelist.\n",auide_hwif.drive->id->model); + printk(KERN_ERR " please read 'Documentation/mips/AU1xxx_IDE.README'"); + } + +#ifdef IDE_AU1XXX_BURSTMODE + flags = DEV_FLAGS_SYNC | DEV_FLAGS_BURSTABLE; +#else + flags = DEV_FLAGS_SYNC; +#endif + + /* setup dev_tab for tx channel */ + auide_init_dbdma_dev( &source_dev_tab, + dev_id, + tsize, devwidth, DEV_FLAGS_OUT | flags); + auide->tx_dev_id = au1xxx_ddma_add_device( &source_dev_tab ); + + auide_init_dbdma_dev( &source_dev_tab, + dev_id, + tsize, devwidth, DEV_FLAGS_IN | flags); + auide->rx_dev_id = au1xxx_ddma_add_device( &source_dev_tab ); + + /* We also need to add a target device for the DMA */ + auide_init_dbdma_dev( &target_dev_tab, + (u32)DSCR_CMD0_ALWAYS, + tsize, devwidth, DEV_FLAGS_ANYUSE); + auide->target_dev_id = au1xxx_ddma_add_device(&target_dev_tab); + + /* Get a channel for TX */ + auide->tx_chan = au1xxx_dbdma_chan_alloc(auide->target_dev_id, + auide->tx_dev_id, + auide_ddma_tx_callback, + (void*)auide); + + /* Get a channel for RX */ + auide->rx_chan = au1xxx_dbdma_chan_alloc(auide->rx_dev_id, + auide->target_dev_id, + auide_ddma_rx_callback, + (void*)auide); + + auide->tx_desc_head = (void*)au1xxx_dbdma_ring_alloc(auide->tx_chan, + NUM_DESCRIPTORS); + auide->rx_desc_head = (void*)au1xxx_dbdma_ring_alloc(auide->rx_chan, + NUM_DESCRIPTORS); + + hwif->dmatable_cpu = dma_alloc_coherent(auide->dev, + PRD_ENTRIES * PRD_BYTES, /* 1 Page */ + &hwif->dmatable_dma, GFP_KERNEL); + + au1xxx_dbdma_start( auide->tx_chan ); + au1xxx_dbdma_start( auide->rx_chan ); + + return 0; +} +#else + +static int auide_ddma_init( _auide_hwif *auide ) +{ + dbdev_tab_t source_dev_tab; + int flags; + +#ifdef IDE_AU1XXX_BURSTMODE + flags = DEV_FLAGS_SYNC | DEV_FLAGS_BURSTABLE; +#else + flags = DEV_FLAGS_SYNC; +#endif + + /* setup dev_tab for tx channel */ + auide_init_dbdma_dev( &source_dev_tab, + (u32)DSCR_CMD0_ALWAYS, + 8, 32, DEV_FLAGS_OUT | flags); + auide->tx_dev_id = au1xxx_ddma_add_device( &source_dev_tab ); + + auide_init_dbdma_dev( &source_dev_tab, + (u32)DSCR_CMD0_ALWAYS, + 8, 32, DEV_FLAGS_IN | flags); + auide->rx_dev_id = au1xxx_ddma_add_device( &source_dev_tab ); + + /* Get a channel for TX */ + auide->tx_chan = au1xxx_dbdma_chan_alloc(DSCR_CMD0_ALWAYS, + auide->tx_dev_id, + NULL, + (void*)auide); + + /* Get a channel for RX */ + auide->rx_chan = au1xxx_dbdma_chan_alloc(auide->rx_dev_id, + DSCR_CMD0_ALWAYS, + NULL, + (void*)auide); + + auide->tx_desc_head = (void*)au1xxx_dbdma_ring_alloc(auide->tx_chan, + NUM_DESCRIPTORS); + auide->rx_desc_head = (void*)au1xxx_dbdma_ring_alloc(auide->rx_chan, + NUM_DESCRIPTORS); + + au1xxx_dbdma_start( auide->tx_chan ); + au1xxx_dbdma_start( auide->rx_chan ); + + return 0; +} +#endif + +static void auide_setup_ports(hw_regs_t *hw, _auide_hwif *ahwif) +{ + int i; + unsigned long *ata_regs = hw->io_ports; + + /* FIXME? */ + for (i = 0; i < IDE_CONTROL_OFFSET; i++) { + *ata_regs++ = ahwif->regbase + (i << AU1XXX_ATA_REG_OFFSET); + } + + /* set the Alternative Status register */ + *ata_regs = ahwif->regbase + (14 << AU1XXX_ATA_REG_OFFSET); +} + +static int au_ide_probe(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + _auide_hwif *ahwif = &auide_hwif; + ide_hwif_t *hwif; + struct resource *res; + int ret = 0; + +#if defined(CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA) + char *mode = "MWDMA2"; +#elif defined(CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA) + char *mode = "PIO+DDMA(offload)"; +#endif + + memset(&auide_hwif, 0, sizeof(_auide_hwif)); + auide_hwif.dev = 0; + + ahwif->dev = dev; + ahwif->irq = platform_get_irq(pdev, 0); + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + + if (res == NULL) { + pr_debug("%s %d: no base address\n", DRV_NAME, pdev->id); + ret = -ENODEV; + goto out; + } + + if (!request_mem_region (res->start, res->end-res->start, pdev->name)) { + pr_debug("%s: request_mem_region failed\n", DRV_NAME); + ret = -EBUSY; + goto out; + } + + ahwif->regbase = (u32)ioremap(res->start, res->end-res->start); + if (ahwif->regbase == 0) { + ret = -ENOMEM; + goto out; + } + + /* FIXME: This might possibly break PCMCIA IDE devices */ + + hwif = &ide_hwifs[pdev->id]; + hw_regs_t *hw = &hwif->hw; + hwif->irq = hw->irq = ahwif->irq; + hwif->chipset = ide_au1xxx; + + auide_setup_ports(hw, ahwif); + memcpy(hwif->io_ports, hw->io_ports, sizeof(hwif->io_ports)); + + hwif->ultra_mask = 0x0; /* Disable Ultra DMA */ +#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA + hwif->mwdma_mask = 0x07; /* Multimode-2 DMA */ + hwif->swdma_mask = 0x00; +#else + hwif->mwdma_mask = 0x0; + hwif->swdma_mask = 0x0; +#endif + + hwif->noprobe = 0; + hwif->drives[0].unmask = 1; + hwif->drives[1].unmask = 1; + + /* hold should be on in all cases */ + hwif->hold = 1; + hwif->mmio = 2; + + /* If the user has selected DDMA assisted copies, + then set up a few local I/O function entry points + */ + +#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA + hwif->INSW = auide_insw; + hwif->OUTSW = auide_outsw; +#endif + + hwif->tuneproc = &auide_tune_drive; + hwif->speedproc = &auide_tune_chipset; + +#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA + hwif->ide_dma_off_quietly = &auide_dma_off_quietly; + hwif->ide_dma_timeout = &auide_dma_timeout; + + hwif->ide_dma_check = &auide_dma_check; + hwif->dma_exec_cmd = &auide_dma_exec_cmd; + hwif->dma_start = &auide_dma_start; + hwif->ide_dma_end = &auide_dma_end; + hwif->dma_setup = &auide_dma_setup; + hwif->ide_dma_test_irq = &auide_dma_test_irq; + hwif->ide_dma_host_off = &auide_dma_host_off; + hwif->ide_dma_host_on = &auide_dma_host_on; + hwif->ide_dma_lostirq = &auide_dma_lostirq; + hwif->ide_dma_on = &auide_dma_on; + + hwif->autodma = 1; + hwif->drives[0].autodma = hwif->autodma; + hwif->drives[1].autodma = hwif->autodma; + hwif->atapi_dma = 1; + +#else /* !CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA */ + hwif->autodma = 0; + hwif->channel = 0; + hwif->hold = 1; + hwif->select_data = 0; /* no chipset-specific code */ + hwif->config_data = 0; /* no chipset-specific code */ + + hwif->drives[0].autodma = 0; + hwif->drives[0].autotune = 1; /* 1=autotune, 2=noautotune, 0=default */ +#endif + hwif->drives[0].no_io_32bit = 1; + + auide_hwif.hwif = hwif; + hwif->hwif_data = &auide_hwif; + +#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA + auide_ddma_init(&auide_hwif); + dbdma_init_done = 1; +#endif + + probe_hwif_init(hwif); + dev_set_drvdata(dev, hwif); + + printk(KERN_INFO "Au1xxx IDE(builtin) configured for %s\n", mode ); + + out: + return ret; +} + +static int au_ide_remove(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct resource *res; + ide_hwif_t *hwif = dev_get_drvdata(dev); + _auide_hwif *ahwif = &auide_hwif; + + ide_unregister(hwif - ide_hwifs); + + iounmap((void *)ahwif->regbase); + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + release_mem_region(res->start, res->end - res->start); + + return 0; +} + +static struct device_driver au1200_ide_driver = { + .name = "au1200-ide", + .bus = &platform_bus_type, + .probe = au_ide_probe, + .remove = au_ide_remove, +}; + +static int __init au_ide_init(void) +{ + return driver_register(&au1200_ide_driver); +} + +static void __exit au_ide_exit(void) +{ + driver_unregister(&au1200_ide_driver); +} + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("AU1200 IDE driver"); + +module_init(au_ide_init); +module_exit(au_ide_exit); diff --git a/include/asm-mips/mach-au1x00/au1xxx_ide.h b/include/asm-mips/mach-au1x00/au1xxx_ide.h index 0c3c127e619e..e867b4ef96d1 100644 --- a/include/asm-mips/mach-au1x00/au1xxx_ide.h +++ b/include/asm-mips/mach-au1x00/au1xxx_ide.h @@ -74,9 +74,6 @@ typedef struct 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; @@ -162,13 +159,9 @@ int __init auide_probe(void); * 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); @@ -183,8 +176,6 @@ int __init auide_probe(void); 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 */ /******************************************************************************* @@ -294,3 +285,11 @@ int __init auide_probe(void); #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 -- 2.11.4.GIT