1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * pata_atp867x.c - ARTOP 867X 64bit 4-channel UDMA133 ATA controller driver
5  *	(C) 2009 Google Inc. John(Jung-Ik) Lee <jilee@google.com>
9  *	2003-2004 by Eric Uhrhane, Google, Inc.
69 #define ATP867X_IOBASE(ap)		((ap)->host->iomap[0])
109 	struct pci_dev *pdev	= to_pci_dev(ap->host->dev);  in atp867x_set_dmamode()
110 	struct atp867x_priv *dp = ap->private_data;  in atp867x_set_dmamode()  local
111 	u8 speed = adev->dma_mode;  in atp867x_set_dmamode()
113 	u8 mode = speed - XFER_UDMA_0 + 1;  in atp867x_set_dmamode()
118 	 *   rev-A: UDMA_1~4 (5, 6 no change)  in atp867x_set_dmamode()
119 	 *   rev-B: all UDMA modes  in atp867x_set_dmamode()
122 	if (dp->pci66mhz && mode > ATP867X_IO_DMAMODE_UDMA_0  &&  in atp867x_set_dmamode()
123 	   (pdev->device == PCI_DEVICE_ID_ARTOP_ATP867B ||  in atp867x_set_dmamode()
125 		mode--;  in atp867x_set_dmamode()
127 	b = ioread8(dp->dma_mode);  in atp867x_set_dmamode()
128 	if (adev->devno & 1) {  in atp867x_set_dmamode()
135 	iowrite8(b, dp->dma_mode);  in atp867x_set_dmamode()
141 	struct atp867x_priv *dp = ap->private_data;  in atp867x_get_active_clocks_shifted()  local
148 	if (dp->pci66mhz)  in atp867x_get_active_clocks_shifted()
187 		--clocks;	/* by the spec */  in atp867x_get_recover_clocks_shifted()
206 	struct atp867x_priv *dp = ap->private_data;  in atp867x_set_piomode()  local
207 	u8 speed = adev->pio_mode;  in atp867x_set_piomode()
216 	if (peer && peer->pio_mode) {  in atp867x_set_piomode()
217 		ata_timing_compute(peer, peer->pio_mode, &p, T, UT);  in atp867x_set_piomode()
221 	b = ioread8(dp->dma_mode);  in atp867x_set_piomode()
222 	if (adev->devno & 1)  in atp867x_set_piomode()
226 	iowrite8(b, dp->dma_mode);  in atp867x_set_piomode()
231 	if (adev->devno & 1)  in atp867x_set_piomode()
232 		iowrite8(b, dp->slave_piospd);  in atp867x_set_piomode()
234 		iowrite8(b, dp->mstr_piospd);  in atp867x_set_piomode()
239 	iowrite8(b, dp->eightb_piospd);  in atp867x_set_piomode()
244 	if (pdev->subsystem_vendor == PCI_VENDOR_ID_ARTOP &&  in atp867x_cable_override()
245 		(pdev->subsystem_device == PCI_DEVICE_ID_ARTOP_ATP867A ||  in atp867x_cable_override()
246 		 pdev->subsystem_device == PCI_DEVICE_ID_ARTOP_ATP867B)) {  in atp867x_cable_override()
254 	struct pci_dev *pdev = to_pci_dev(ap->host->dev);  in atp867x_cable_detect()
283 		dev_dbg(&pdev->dev, "ATP867X: resource start:len=%lx:%lx\n",  in atp867x_check_res()
290 	struct ata_ioports *ioaddr = &ap->ioaddr;  in atp867x_check_ports()
291 	struct atp867x_priv *dp = ap->private_data;  in atp867x_check_ports()  local
307 		"  dp->dma_mode	=0x%lx\n"  in atp867x_check_ports()
308 		"  dp->mstr_piospd	=0x%lx\n"  in atp867x_check_ports()
309 		"  dp->slave_piospd	=0x%lx\n"  in atp867x_check_ports()
310 		"  dp->eightb_piospd	=0x%lx\n"  in atp867x_check_ports()
311 		"  dp->pci66mhz		=0x%lx\n",  in atp867x_check_ports()
313 		(unsigned long)ioaddr->cmd_addr,  in atp867x_check_ports()
315 		(unsigned long)ioaddr->ctl_addr,  in atp867x_check_ports()
317 		(unsigned long)ioaddr->bmdma_addr,  in atp867x_check_ports()
319 		(unsigned long)ioaddr->data_addr,  in atp867x_check_ports()
320 		(unsigned long)ioaddr->error_addr,  in atp867x_check_ports()
321 		(unsigned long)ioaddr->feature_addr,  in atp867x_check_ports()
322 		(unsigned long)ioaddr->nsect_addr,  in atp867x_check_ports()
323 		(unsigned long)ioaddr->lbal_addr,  in atp867x_check_ports()
324 		(unsigned long)ioaddr->lbam_addr,  in atp867x_check_ports()
325 		(unsigned long)ioaddr->lbah_addr,  in atp867x_check_ports()
326 		(unsigned long)ioaddr->device_addr,  in atp867x_check_ports()
327 		(unsigned long)ioaddr->status_addr,  in atp867x_check_ports()
328 		(unsigned long)ioaddr->command_addr,  in atp867x_check_ports()
329 		(unsigned long)dp->dma_mode,  in atp867x_check_ports()
330 		(unsigned long)dp->mstr_piospd,  in atp867x_check_ports()
331 		(unsigned long)dp->slave_piospd,  in atp867x_check_ports()
332 		(unsigned long)dp->eightb_piospd,  in atp867x_check_ports()
333 		(unsigned long)dp->pci66mhz);  in atp867x_check_ports()
338 	struct pci_dev *pdev = to_pci_dev(ap->host->dev);  in atp867x_set_priv()
339 	struct atp867x_priv *dp;  in atp867x_set_priv()  local
340 	int port = ap->port_no;  in atp867x_set_priv()
342 	dp = ap->private_data =  in atp867x_set_priv()
343 		devm_kzalloc(&pdev->dev, sizeof(*dp), GFP_KERNEL);  in atp867x_set_priv()
344 	if (dp == NULL)  in atp867x_set_priv()
345 		return -ENOMEM;  in atp867x_set_priv()
347 	dp->dma_mode	 = ATP867X_IO_DMAMODE(ap, port);  in atp867x_set_priv()
348 	dp->mstr_piospd	 = ATP867X_IO_MSTRPIOSPD(ap, port);  in atp867x_set_priv()
349 	dp->slave_piospd = ATP867X_IO_SLAVPIOSPD(ap, port);  in atp867x_set_priv()
350 	dp->eightb_piospd = ATP867X_IO_8BPIOSPD(ap, port);  in atp867x_set_priv()
352 	dp->pci66mhz =  in atp867x_set_priv()
360 	struct pci_dev *pdev = to_pci_dev(host->dev);  in atp867x_fixup()
361 	struct ata_port *ap = host->ports[0];  in atp867x_fixup()
372 		dev_dbg(&pdev->dev, "ATP867X: set latency timer to %d\n", v);  in atp867x_fixup()
394 	 * Turn off the over clocked udma5 mode, only for Rev-B  in atp867x_fixup()
398 	if (pdev->device == PCI_DEVICE_ID_ARTOP_ATP867B)  in atp867x_fixup()
405 	struct device *gdev = host->dev;  in atp867x_ata_pci_sff_init_host()
414 	if (rc == -EBUSY)  in atp867x_ata_pci_sff_init_host()
418 	host->iomap = pcim_iomap_table(pdev);  in atp867x_ata_pci_sff_init_host()
424 			host->iomap[i]);  in atp867x_ata_pci_sff_init_host()
429 	for (i = 0; i < host->n_ports; i++) {  in atp867x_ata_pci_sff_init_host()
430 		struct ata_port *ap = host->ports[i];  in atp867x_ata_pci_sff_init_host()
431 		struct ata_ioports *ioaddr = &ap->ioaddr;  in atp867x_ata_pci_sff_init_host()
433 		ioaddr->cmd_addr = ATP867X_IO_PORTBASE(ap, i);  in atp867x_ata_pci_sff_init_host()
434 		ioaddr->ctl_addr = ioaddr->altstatus_addr  in atp867x_ata_pci_sff_init_host()
436 		ioaddr->bmdma_addr = ATP867X_IO_DMABASE(ap, i);  in atp867x_ata_pci_sff_init_host()
446 			(unsigned long)ioaddr->cmd_addr,  in atp867x_ata_pci_sff_init_host()
447 			(unsigned long)ioaddr->ctl_addr);  in atp867x_ata_pci_sff_init_host()
449 			(unsigned long)ioaddr->bmdma_addr);  in atp867x_ata_pci_sff_init_host()
456 		return -ENODEV;  in atp867x_ata_pci_sff_init_host()
461 	return dma_set_mask_and_coherent(&pdev->dev, ATA_DMA_MASK);  in atp867x_ata_pci_sff_init_host()
478 	ata_print_version_once(&pdev->dev, DRV_VERSION);  in atp867x_init_one()
484 	dev_info(&pdev->dev, "ATP867X: ATP867 ATA UDMA133 controller (rev %02X)",  in atp867x_init_one()
485 		pdev->device);  in atp867x_init_one()
487 	host = ata_host_alloc_pinfo(&pdev->dev, ppi, ATP867X_NUM_PORTS);  in atp867x_init_one()
489 		dev_err(&pdev->dev, "failed to allocate ATA host\n");  in atp867x_init_one()
490 		rc = -ENOMEM;  in atp867x_init_one()
496 		dev_err(&pdev->dev, "failed to init host\n");  in atp867x_init_one()
502 	rc = ata_host_activate(host, pdev->irq, ata_bmdma_interrupt,  in atp867x_init_one()
505 		dev_err(&pdev->dev, "failed to activate host\n");  in atp867x_init_one()
547 MODULE_AUTHOR("John(Jung-Ik) Lee, Google Inc.");
548 MODULE_DESCRIPTION("low level driver for Artop/Acard 867x ATA controller");