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author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-04-19 17:17:29 +0100 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-04-19 17:17:29 +0100 |
commit | adf6d34e460387ee3e8f1e1875d52bff51212c7d (patch) | |
tree | 88ef100143e6184103a608f82dfd232bf6376eaf /drivers/ata | |
parent | d1964dab60ce7c104dd21590e987a8787db18051 (diff) | |
parent | 3760d31f11bfbd0ead9eaeb8573e0602437a9d7c (diff) | |
download | kernel_samsung_smdk4412-adf6d34e460387ee3e8f1e1875d52bff51212c7d.zip kernel_samsung_smdk4412-adf6d34e460387ee3e8f1e1875d52bff51212c7d.tar.gz kernel_samsung_smdk4412-adf6d34e460387ee3e8f1e1875d52bff51212c7d.tar.bz2 |
Merge branch 'omap2-upstream' into devel
Diffstat (limited to 'drivers/ata')
-rw-r--r-- | drivers/ata/libata-core.c | 43 | ||||
-rw-r--r-- | drivers/ata/libata-eh.c | 2 | ||||
-rw-r--r-- | drivers/ata/pata_ali.c | 40 | ||||
-rw-r--r-- | drivers/ata/pata_sil680.c | 6 | ||||
-rw-r--r-- | drivers/ata/sata_fsl.c | 8 |
5 files changed, 88 insertions, 11 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index c4248b3..be95fdb 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -326,6 +326,44 @@ static void ata_force_horkage(struct ata_device *dev) } /** + * atapi_cmd_type - Determine ATAPI command type from SCSI opcode + * @opcode: SCSI opcode + * + * Determine ATAPI command type from @opcode. + * + * LOCKING: + * None. + * + * RETURNS: + * ATAPI_{READ|WRITE|READ_CD|PASS_THRU|MISC} + */ +int atapi_cmd_type(u8 opcode) +{ + switch (opcode) { + case GPCMD_READ_10: + case GPCMD_READ_12: + return ATAPI_READ; + + case GPCMD_WRITE_10: + case GPCMD_WRITE_12: + case GPCMD_WRITE_AND_VERIFY_10: + return ATAPI_WRITE; + + case GPCMD_READ_CD: + case GPCMD_READ_CD_MSF: + return ATAPI_READ_CD; + + case ATA_16: + case ATA_12: + if (atapi_passthru16) + return ATAPI_PASS_THRU; + /* fall thru */ + default: + return ATAPI_MISC; + } +} + +/** * ata_tf_to_fis - Convert ATA taskfile to SATA FIS structure * @tf: Taskfile to convert * @pmp: Port multiplier port @@ -972,7 +1010,7 @@ static void ata_dev_disable_pm(struct ata_device *dev) void ata_lpm_schedule(struct ata_port *ap, enum link_pm policy) { ap->pm_policy = policy; - ap->link.eh_info.action |= ATA_EHI_LPM; + ap->link.eh_info.action |= ATA_EH_LPM; ap->link.eh_info.flags |= ATA_EHI_NO_AUTOPSY; ata_port_schedule_eh(ap); } @@ -2660,7 +2698,7 @@ int ata_bus_probe(struct ata_port *ap) specific sequence bass-ackwards so that PDIAG- is released by the slave device */ - ata_link_for_each_dev(dev, &ap->link) { + ata_link_for_each_dev_reverse(dev, &ap->link) { if (tries[dev->devno]) dev->class = classes[dev->devno]; @@ -7774,6 +7812,7 @@ EXPORT_SYMBOL_GPL(ata_tf_read); EXPORT_SYMBOL_GPL(ata_noop_dev_select); EXPORT_SYMBOL_GPL(ata_std_dev_select); EXPORT_SYMBOL_GPL(sata_print_link_status); +EXPORT_SYMBOL_GPL(atapi_cmd_type); EXPORT_SYMBOL_GPL(ata_tf_to_fis); EXPORT_SYMBOL_GPL(ata_tf_from_fis); EXPORT_SYMBOL_GPL(ata_pack_xfermask); diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c index 681252f..a583032 100644 --- a/drivers/ata/libata-eh.c +++ b/drivers/ata/libata-eh.c @@ -2748,7 +2748,7 @@ int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset, ehc->i.flags &= ~ATA_EHI_SETMODE; } - if (ehc->i.action & ATA_EHI_LPM) + if (ehc->i.action & ATA_EH_LPM) ata_link_for_each_dev(dev, link) ata_dev_enable_pm(dev, ap->pm_policy); diff --git a/drivers/ata/pata_ali.c b/drivers/ata/pata_ali.c index 8786455..ce830fe 100644 --- a/drivers/ata/pata_ali.c +++ b/drivers/ata/pata_ali.c @@ -36,6 +36,10 @@ #define DRV_NAME "pata_ali" #define DRV_VERSION "0.7.5" +int ali_atapi_dma = 0; +module_param_named(atapi_dma, ali_atapi_dma, int, 0644); +MODULE_PARM_DESC(atapi_dma, "Enable ATAPI DMA (0=disable, 1=enable)"); + /* * Cable special cases */ @@ -270,6 +274,27 @@ static void ali_set_dmamode(struct ata_port *ap, struct ata_device *adev) } /** + * ali_warn_atapi_dma - Warn about ATAPI DMA disablement + * @adev: Device + * + * Whine about ATAPI DMA disablement if @adev is an ATAPI device. + * Can be used as ->dev_config. + */ + +static void ali_warn_atapi_dma(struct ata_device *adev) +{ + struct ata_eh_context *ehc = &adev->link->eh_context; + int print_info = ehc->i.flags & ATA_EHI_PRINTINFO; + + if (print_info && adev->class == ATA_DEV_ATAPI && !ali_atapi_dma) { + ata_dev_printk(adev, KERN_WARNING, + "WARNING: ATAPI DMA disabled for reliablity issues. It can be enabled\n"); + ata_dev_printk(adev, KERN_WARNING, + "WARNING: via pata_ali.atapi_dma modparam or corresponding sysfs node.\n"); + } +} + +/** * ali_lock_sectors - Keep older devices to 255 sector mode * @adev: Device * @@ -283,6 +308,7 @@ static void ali_set_dmamode(struct ata_port *ap, struct ata_device *adev) static void ali_lock_sectors(struct ata_device *adev) { adev->max_sectors = 255; + ali_warn_atapi_dma(adev); } /** @@ -294,6 +320,18 @@ static void ali_lock_sectors(struct ata_device *adev) static int ali_check_atapi_dma(struct ata_queued_cmd *qc) { + if (!ali_atapi_dma) { + /* FIXME: pata_ali can't do ATAPI DMA reliably but the + * IDE alim15x3 driver can. I tried lots of things + * but couldn't find what the actual difference was. + * If you got an idea, please write it to + * linux-ide@vger.kernel.org and cc htejun@gmail.com. + * + * Disable ATAPI DMA for now. + */ + return -EOPNOTSUPP; + } + /* If its not a media command, its not worth it */ if (atapi_cmd_type(qc->cdb[0]) == ATAPI_MISC) return -EOPNOTSUPP; @@ -359,6 +397,7 @@ static struct ata_port_operations ali_20_port_ops = { .tf_load = ata_tf_load, .tf_read = ata_tf_read, + .check_atapi_dma = ali_check_atapi_dma, .check_status = ata_check_status, .exec_command = ata_exec_command, .dev_select = ata_std_dev_select, @@ -438,6 +477,7 @@ static struct ata_port_operations ali_c5_port_ops = { .check_status = ata_check_status, .exec_command = ata_exec_command, .dev_select = ata_std_dev_select, + .dev_config = ali_warn_atapi_dma, .freeze = ata_bmdma_freeze, .thaw = ata_bmdma_thaw, diff --git a/drivers/ata/pata_sil680.c b/drivers/ata/pata_sil680.c index 503245a..7c5b2dd 100644 --- a/drivers/ata/pata_sil680.c +++ b/drivers/ata/pata_sil680.c @@ -269,7 +269,11 @@ static u8 sil680_init_chip(struct pci_dev *pdev, int *try_mmio) dev_dbg(&pdev->dev, "sil680: BA5_EN = %d clock = %02X\n", tmpbyte & 1, tmpbyte & 0x30); - *try_mmio = (tmpbyte & 1) || pci_resource_start(pdev, 5); + *try_mmio = 0; +#ifdef CONFIG_PPC_MERGE + if (machine_is(cell)) + *try_mmio = (tmpbyte & 1) || pci_resource_start(pdev, 5); +#endif switch(tmpbyte & 0x30) { case 0x00: diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c index 07791a7..9d1e3ca 100644 --- a/drivers/ata/sata_fsl.c +++ b/drivers/ata/sata_fsl.c @@ -1256,7 +1256,6 @@ static int sata_fsl_probe(struct of_device *ofdev, void __iomem *ssr_base = NULL; void __iomem *csr_base = NULL; struct sata_fsl_host_priv *host_priv = NULL; - struct resource *r; int irq; struct ata_host *host; @@ -1266,8 +1265,6 @@ static int sata_fsl_probe(struct of_device *ofdev, dev_printk(KERN_INFO, &ofdev->dev, "Sata FSL Platform/CSB Driver init\n"); - r = kmalloc(sizeof(struct resource), GFP_KERNEL); - hcr_base = of_iomap(ofdev->node, 0); if (!hcr_base) goto error_exit_with_cleanup; @@ -1348,10 +1345,7 @@ static int sata_fsl_remove(struct of_device *ofdev) static struct of_device_id fsl_sata_match[] = { { - .compatible = "fsl,mpc8315-sata", - }, - { - .compatible = "fsl,mpc8379-sata", + .compatible = "fsl,pq-sata", }, {}, }; |