diff options
| -rw-r--r-- | Documentation/devicetree/bindings/ata/ahci-da850.txt | 18 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/ata/fsl,imx-pata.yaml | 42 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/ata/imx-pata.txt | 16 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/ata/ti,da850-ahci.yaml | 39 | ||||
| -rw-r--r-- | drivers/ata/Kconfig | 28 | ||||
| -rw-r--r-- | drivers/ata/libata-core.c | 108 | ||||
| -rw-r--r-- | drivers/ata/libata-sff.c | 4 | ||||
| -rw-r--r-- | drivers/ata/libata.h | 8 | ||||
| -rw-r--r-- | drivers/ata/pata_legacy.c | 8 |
9 files changed, 139 insertions, 132 deletions
diff --git a/Documentation/devicetree/bindings/ata/ahci-da850.txt b/Documentation/devicetree/bindings/ata/ahci-da850.txt deleted file mode 100644 index 5f8193417725..000000000000 --- a/Documentation/devicetree/bindings/ata/ahci-da850.txt +++ /dev/null @@ -1,18 +0,0 @@ -Device tree binding for the TI DA850 AHCI SATA Controller ---------------------------------------------------------- - -Required properties: - - compatible: must be "ti,da850-ahci" - - reg: physical base addresses and sizes of the two register regions - used by the controller: the register map as defined by the - AHCI 1.1 standard and the Power Down Control Register (PWRDN) - for enabling/disabling the SATA clock receiver - - interrupts: interrupt specifier (refer to the interrupt binding) - -Example: - - sata: sata@218000 { - compatible = "ti,da850-ahci"; - reg = <0x218000 0x2000>, <0x22c018 0x4>; - interrupts = <67>; - }; diff --git a/Documentation/devicetree/bindings/ata/fsl,imx-pata.yaml b/Documentation/devicetree/bindings/ata/fsl,imx-pata.yaml new file mode 100644 index 000000000000..324e2413bba8 --- /dev/null +++ b/Documentation/devicetree/bindings/ata/fsl,imx-pata.yaml @@ -0,0 +1,42 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/ata/fsl,imx-pata.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Freescale i.MX PATA Controller + +maintainers: + - Animesh Agarwal <animeshagarwal28@gmail.com> + +properties: + compatible: + oneOf: + - items: + - enum: + - fsl,imx31-pata + - fsl,imx51-pata + - const: fsl,imx27-pata + - const: fsl,imx27-pata + + reg: + maxItems: 1 + + interrupts: + items: + - description: PATA Controller interrupts + + clocks: + items: + - description: PATA Controller clocks + +additionalProperties: false + +examples: + - | + pata: pata@83fe0000 { + compatible = "fsl,imx51-pata", "fsl,imx27-pata"; + reg = <0x83fe0000 0x4000>; + interrupts = <70>; + clocks = <&clks 161>; + }; diff --git a/Documentation/devicetree/bindings/ata/imx-pata.txt b/Documentation/devicetree/bindings/ata/imx-pata.txt deleted file mode 100644 index f1172f00188a..000000000000 --- a/Documentation/devicetree/bindings/ata/imx-pata.txt +++ /dev/null @@ -1,16 +0,0 @@ -* Freescale i.MX PATA Controller - -Required properties: -- compatible: "fsl,imx27-pata" -- reg: Address range of the PATA Controller -- interrupts: The interrupt of the PATA Controller -- clocks: the clocks for the PATA Controller - -Example: - - pata: pata@83fe0000 { - compatible = "fsl,imx51-pata", "fsl,imx27-pata"; - reg = <0x83fe0000 0x4000>; - interrupts = <70>; - clocks = <&clks 161>; - }; diff --git a/Documentation/devicetree/bindings/ata/ti,da850-ahci.yaml b/Documentation/devicetree/bindings/ata/ti,da850-ahci.yaml new file mode 100644 index 000000000000..ce13c76bdffb --- /dev/null +++ b/Documentation/devicetree/bindings/ata/ti,da850-ahci.yaml @@ -0,0 +1,39 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/ata/ti,da850-ahci.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: TI DA850 AHCI SATA Controller + +maintainers: + - Animesh Agarwal <animeshagarwal28@gmail.com> + +properties: + compatible: + const: ti,da850-ahci + + reg: + items: + - description: Address and size of the register map as defined by the AHCI 1.1 standard. + - description: + Address and size of Power Down Control Register (PWRDN) for enabling/disabling the SATA clock + receiver. + + interrupts: + maxItems: 1 + +required: + - compatible + - reg + - interrupts + +additionalProperties: false + +examples: + - | + sata@218000 { + compatible = "ti,da850-ahci"; + reg = <0x218000 0x2000>, <0x22c018 0x4>; + interrupts = <67>; + }; diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig index 928ec93c6b45..b595494ab9b4 100644 --- a/drivers/ata/Kconfig +++ b/drivers/ata/Kconfig @@ -556,7 +556,7 @@ comment "PATA SFF controllers with BMDMA" config PATA_ALI tristate "ALi PATA support" - depends on PCI + depends on PCI && HAS_IOPORT select PATA_TIMINGS help This option enables support for the ALi ATA interfaces @@ -566,7 +566,7 @@ config PATA_ALI config PATA_AMD tristate "AMD/NVidia PATA support" - depends on PCI + depends on PCI && HAS_IOPORT select PATA_TIMINGS help This option enables support for the AMD and NVidia PATA @@ -584,7 +584,7 @@ config PATA_ARASAN_CF config PATA_ARTOP tristate "ARTOP 6210/6260 PATA support" - depends on PCI + depends on PCI && HAS_IOPORT help This option enables support for ARTOP PATA controllers. @@ -611,7 +611,7 @@ config PATA_ATP867X config PATA_CMD64X tristate "CMD64x PATA support" - depends on PCI + depends on PCI && HAS_IOPORT select PATA_TIMINGS help This option enables support for the CMD64x series chips @@ -658,7 +658,7 @@ config PATA_CS5536 config PATA_CYPRESS tristate "Cypress CY82C693 PATA support (Very Experimental)" - depends on PCI + depends on PCI && HAS_IOPORT select PATA_TIMINGS help This option enables support for the Cypress/Contaq CY82C693 @@ -706,7 +706,7 @@ config PATA_HPT366 config PATA_HPT37X tristate "HPT 370/370A/371/372/374/302 PATA support" - depends on PCI + depends on PCI && HAS_IOPORT help This option enables support for the majority of the later HPT PATA controllers via the new ATA layer. @@ -715,7 +715,7 @@ config PATA_HPT37X config PATA_HPT3X2N tristate "HPT 371N/372N/302N PATA support" - depends on PCI + depends on PCI && HAS_IOPORT help This option enables support for the N variant HPT PATA controllers via the new ATA layer. @@ -818,7 +818,7 @@ config PATA_MPC52xx config PATA_NETCELL tristate "NETCELL Revolution RAID support" - depends on PCI + depends on PCI && HAS_IOPORT help This option enables support for the Netcell Revolution RAID PATA controller. @@ -854,7 +854,7 @@ config PATA_OLDPIIX config PATA_OPTIDMA tristate "OPTI FireStar PATA support (Very Experimental)" - depends on PCI + depends on PCI && HAS_IOPORT help This option enables DMA/PIO support for the later OPTi controllers found on some old motherboards and in some @@ -864,7 +864,7 @@ config PATA_OPTIDMA config PATA_PDC2027X tristate "Promise PATA 2027x support" - depends on PCI + depends on PCI && HAS_IOPORT help This option enables support for Promise PATA pdc20268 to pdc20277 host adapters. @@ -872,7 +872,7 @@ config PATA_PDC2027X config PATA_PDC_OLD tristate "Older Promise PATA controller support" - depends on PCI + depends on PCI && HAS_IOPORT help This option enables support for the Promise 20246, 20262, 20263, 20265 and 20267 adapters. @@ -900,7 +900,7 @@ config PATA_RDC config PATA_SC1200 tristate "SC1200 PATA support" - depends on PCI && (X86_32 || COMPILE_TEST) + depends on PCI && (X86_32 || COMPILE_TEST) && HAS_IOPORT help This option enables support for the NatSemi/AMD SC1200 SoC companion chip used with the Geode processor family. @@ -918,7 +918,7 @@ config PATA_SCH config PATA_SERVERWORKS tristate "SERVERWORKS OSB4/CSB5/CSB6/HT1000 PATA support" - depends on PCI + depends on PCI && HAS_IOPORT help This option enables support for the Serverworks OSB4/CSB5/CSB6 and HT1000 PATA controllers, via the new ATA layer. @@ -1182,7 +1182,7 @@ config ATA_GENERIC config PATA_LEGACY tristate "Legacy ISA PATA support (Experimental)" - depends on (ISA || PCI) + depends on (ISA || PCI) && HAS_IOPORT select PATA_TIMINGS help This option enables support for ISA/VLB/PCI bus legacy PATA diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index c449d60d9bb9..4f35aab81a0a 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -1480,19 +1480,19 @@ static void ata_qc_complete_internal(struct ata_queued_cmd *qc) } /** - * ata_exec_internal_sg - execute libata internal command + * ata_exec_internal - execute libata internal command * @dev: Device to which the command is sent * @tf: Taskfile registers for the command and the result * @cdb: CDB for packet command * @dma_dir: Data transfer direction of the command - * @sgl: sg list for the data buffer of the command - * @n_elem: Number of sg entries + * @buf: Data buffer of the command + * @buflen: Length of data buffer * @timeout: Timeout in msecs (0 for default) * - * Executes libata internal command with timeout. @tf contains - * command on entry and result on return. Timeout and error - * conditions are reported via return value. No recovery action - * is taken after a command times out. It's caller's duty to + * Executes libata internal command with timeout. @tf contains + * the command on entry and the result on return. Timeout and error + * conditions are reported via the return value. No recovery action + * is taken after a command times out. It is the caller's duty to * clean up after timeout. * * LOCKING: @@ -1501,34 +1501,38 @@ static void ata_qc_complete_internal(struct ata_queued_cmd *qc) * RETURNS: * Zero on success, AC_ERR_* mask on failure */ -static unsigned ata_exec_internal_sg(struct ata_device *dev, - struct ata_taskfile *tf, const u8 *cdb, - int dma_dir, struct scatterlist *sgl, - unsigned int n_elem, unsigned int timeout) +unsigned int ata_exec_internal(struct ata_device *dev, struct ata_taskfile *tf, + const u8 *cdb, enum dma_data_direction dma_dir, + void *buf, unsigned int buflen, + unsigned int timeout) { struct ata_link *link = dev->link; struct ata_port *ap = link->ap; u8 command = tf->command; - int auto_timeout = 0; struct ata_queued_cmd *qc; + struct scatterlist sgl; unsigned int preempted_tag; u32 preempted_sactive; u64 preempted_qc_active; int preempted_nr_active_links; + bool auto_timeout = false; DECLARE_COMPLETION_ONSTACK(wait); unsigned long flags; unsigned int err_mask; int rc; + if (WARN_ON(dma_dir != DMA_NONE && !buf)) + return AC_ERR_INVALID; + spin_lock_irqsave(ap->lock, flags); - /* no internal command while frozen */ + /* No internal command while frozen */ if (ata_port_is_frozen(ap)) { spin_unlock_irqrestore(ap->lock, flags); return AC_ERR_SYSTEM; } - /* initialize internal qc */ + /* Initialize internal qc */ qc = __ata_qc_from_tag(ap, ATA_TAG_INTERNAL); qc->tag = ATA_TAG_INTERNAL; @@ -1547,12 +1551,12 @@ static unsigned ata_exec_internal_sg(struct ata_device *dev, ap->qc_active = 0; ap->nr_active_links = 0; - /* prepare & issue qc */ + /* Prepare and issue qc */ qc->tf = *tf; if (cdb) memcpy(qc->cdb, cdb, ATAPI_CDB_LEN); - /* some SATA bridges need us to indicate data xfer direction */ + /* Some SATA bridges need us to indicate data xfer direction */ if (tf->protocol == ATAPI_PROT_DMA && (dev->flags & ATA_DFLAG_DMADIR) && dma_dir == DMA_FROM_DEVICE) qc->tf.feature |= ATAPI_DMADIR; @@ -1560,13 +1564,8 @@ static unsigned ata_exec_internal_sg(struct ata_device *dev, qc->flags |= ATA_QCFLAG_RESULT_TF; qc->dma_dir = dma_dir; if (dma_dir != DMA_NONE) { - unsigned int i, buflen = 0; - struct scatterlist *sg; - - for_each_sg(sgl, sg, n_elem, i) - buflen += sg->length; - - ata_sg_init(qc, sgl, n_elem); + sg_init_one(&sgl, buf, buflen); + ata_sg_init(qc, &sgl, 1); qc->nbytes = buflen; } @@ -1578,11 +1577,11 @@ static unsigned ata_exec_internal_sg(struct ata_device *dev, spin_unlock_irqrestore(ap->lock, flags); if (!timeout) { - if (ata_probe_timeout) + if (ata_probe_timeout) { timeout = ata_probe_timeout * 1000; - else { + } else { timeout = ata_internal_cmd_timeout(dev, command); - auto_timeout = 1; + auto_timeout = true; } } @@ -1595,30 +1594,25 @@ static unsigned ata_exec_internal_sg(struct ata_device *dev, ata_sff_flush_pio_task(ap); if (!rc) { - spin_lock_irqsave(ap->lock, flags); - - /* We're racing with irq here. If we lose, the - * following test prevents us from completing the qc - * twice. If we win, the port is frozen and will be - * cleaned up by ->post_internal_cmd(). + /* + * We are racing with irq here. If we lose, the following test + * prevents us from completing the qc twice. If we win, the port + * is frozen and will be cleaned up by ->post_internal_cmd(). */ + spin_lock_irqsave(ap->lock, flags); if (qc->flags & ATA_QCFLAG_ACTIVE) { qc->err_mask |= AC_ERR_TIMEOUT; - ata_port_freeze(ap); - ata_dev_warn(dev, "qc timeout after %u msecs (cmd 0x%x)\n", timeout, command); } - spin_unlock_irqrestore(ap->lock, flags); } - /* do post_internal_cmd */ if (ap->ops->post_internal_cmd) ap->ops->post_internal_cmd(qc); - /* perform minimal error analysis */ + /* Perform minimal error analysis */ if (qc->flags & ATA_QCFLAG_EH) { if (qc->result_tf.status & (ATA_ERR | ATA_DF)) qc->err_mask |= AC_ERR_DEV; @@ -1632,7 +1626,7 @@ static unsigned ata_exec_internal_sg(struct ata_device *dev, qc->result_tf.status |= ATA_SENSE; } - /* finish up */ + /* Finish up */ spin_lock_irqsave(ap->lock, flags); *tf = qc->result_tf; @@ -1653,44 +1647,6 @@ static unsigned ata_exec_internal_sg(struct ata_device *dev, } /** - * ata_exec_internal - execute libata internal command - * @dev: Device to which the command is sent - * @tf: Taskfile registers for the command and the result - * @cdb: CDB for packet command - * @dma_dir: Data transfer direction of the command - * @buf: Data buffer of the command - * @buflen: Length of data buffer - * @timeout: Timeout in msecs (0 for default) - * - * Wrapper around ata_exec_internal_sg() which takes simple - * buffer instead of sg list. - * - * LOCKING: - * None. Should be called with kernel context, might sleep. - * - * RETURNS: - * Zero on success, AC_ERR_* mask on failure - */ -unsigned ata_exec_internal(struct ata_device *dev, - struct ata_taskfile *tf, const u8 *cdb, - int dma_dir, void *buf, unsigned int buflen, - unsigned int timeout) -{ - struct scatterlist *psg = NULL, sg; - unsigned int n_elem = 0; - - if (dma_dir != DMA_NONE) { - WARN_ON(!buf); - sg_init_one(&sg, buf, buflen); - psg = &sg; - n_elem++; - } - - return ata_exec_internal_sg(dev, tf, cdb, dma_dir, psg, n_elem, - timeout); -} - -/** * ata_pio_need_iordy - check if iordy needed * @adev: ATA device * diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index 95a19c4ef2a1..250f7dae05fd 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -3032,6 +3032,7 @@ EXPORT_SYMBOL_GPL(ata_bmdma_port_start32); */ int ata_pci_bmdma_clear_simplex(struct pci_dev *pdev) { +#ifdef CONFIG_HAS_IOPORT unsigned long bmdma = pci_resource_start(pdev, 4); u8 simplex; @@ -3044,6 +3045,9 @@ int ata_pci_bmdma_clear_simplex(struct pci_dev *pdev) if (simplex & 0x80) return -EOPNOTSUPP; return 0; +#else + return -ENOENT; +#endif /* CONFIG_HAS_IOPORT */ } EXPORT_SYMBOL_GPL(ata_pci_bmdma_clear_simplex); diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h index 5c685bb1939e..1a9881dc2aa1 100644 --- a/drivers/ata/libata.h +++ b/drivers/ata/libata.h @@ -50,10 +50,10 @@ extern int ata_build_rw_tf(struct ata_queued_cmd *qc, u64 block, u32 n_block, unsigned int tf_flags, int dld, int class); extern u64 ata_tf_read_block(const struct ata_taskfile *tf, struct ata_device *dev); -extern unsigned ata_exec_internal(struct ata_device *dev, - struct ata_taskfile *tf, const u8 *cdb, - int dma_dir, void *buf, unsigned int buflen, - unsigned int timeout); +unsigned int ata_exec_internal(struct ata_device *dev, struct ata_taskfile *tf, + const u8 *cdb, enum dma_data_direction dma_dir, + void *buf, unsigned int buflen, + unsigned int timeout); extern int ata_wait_ready(struct ata_link *link, unsigned long deadline, int (*check_ready)(struct ata_link *link)); extern int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class, diff --git a/drivers/ata/pata_legacy.c b/drivers/ata/pata_legacy.c index 448a511cbc17..e7ac142c2423 100644 --- a/drivers/ata/pata_legacy.c +++ b/drivers/ata/pata_legacy.c @@ -173,8 +173,6 @@ static int legacy_port[NR_HOST] = { 0x1f0, 0x170, 0x1e8, 0x168, 0x1e0, 0x160 }; static struct legacy_probe probe_list[NR_HOST]; static struct legacy_data legacy_data[NR_HOST]; static struct ata_host *legacy_host[NR_HOST]; -static int nr_legacy_host; - /** * legacy_probe_add - Add interface to probe list @@ -1276,9 +1274,11 @@ static __exit void legacy_exit(void) { int i; - for (i = 0; i < nr_legacy_host; i++) { + for (i = 0; i < NR_HOST; i++) { struct legacy_data *ld = &legacy_data[i]; - ata_host_detach(legacy_host[i]); + + if (legacy_host[i]) + ata_host_detach(legacy_host[i]); platform_device_unregister(ld->platform_dev); } } |