1 // SPDX-License-Identifier: GPL-2.0-only
9  * Copyright (C) 1999-2003		Andre Hedrick <andre@linux-ide.org>
12  * Portions Copyright (C) 2005-2010	MontaVista Software, Inc.
200  *	hpt37x_find_mode	-	reset the hpt37x bus
210 	struct hpt_clock *clocks = ap->host->private_data;  in hpt37x_find_mode()
212 	while (clocks->xfer_speed) {  in hpt37x_find_mode()
213 		if (clocks->xfer_speed == speed)  in hpt37x_find_mode()
214 			return clocks->timing;  in hpt37x_find_mode()
227 	ata_id_c_string(dev->id, model_num, ATA_ID_PROD, sizeof(model_num));  in hpt_dma_blacklisted()
229 	i = match_string(list, -1, model_num);  in hpt_dma_blacklisted()
255 	"IBM-DTLA-307075",
256 	"IBM-DTLA-307060",
257 	"IBM-DTLA-307045",
258 	"IBM-DTLA-307030",
259 	"IBM-DTLA-307020",
260 	"IBM-DTLA-307015",
261 	"IBM-DTLA-305040",
262 	"IBM-DTLA-305030",
263 	"IBM-DTLA-305020",
264 	"IC35L010AVER07-0",
265 	"IC35L020AVER07-0",
266 	"IC35L030AVER07-0",
267 	"IC35L040AVER07-0",
268 	"IC35L060AVER07-0",
274  *	hpt370_filter	-	mode selection filter
283 	if (adev->class == ATA_DEV_ATA) {  in hpt370_filter()
293  *	hpt370a_filter	-	mode selection filter
302 	if (adev->class == ATA_DEV_ATA) {  in hpt370a_filter()
310  *	hpt372_filter	-	mode selection filter
319 	if (ata_id_is_sata(adev->id))  in hpt372_filter()
326  *	hpt37x_cable_detect	-	Detect the cable type
334 	struct pci_dev *pdev = to_pci_dev(ap->host->dev);  in hpt37x_cable_detect()
340 	udelay(10); /* debounce */  in hpt37x_cable_detect()
347 	if (ata66 & (2 >> ap->port_no))  in hpt37x_cable_detect()
354  *	hpt374_fn1_cable_detect	-	Detect the cable type
362 	struct pci_dev *pdev = to_pci_dev(ap->host->dev);  in hpt374_fn1_cable_detect()
363 	unsigned int mcrbase = 0x50 + 4 * ap->port_no;  in hpt374_fn1_cable_detect()
375 	if (ata66 & (2 >> ap->port_no))  in hpt374_fn1_cable_detect()
382  *	hpt37x_pre_reset	-	reset the hpt37x bus
391 	struct ata_port *ap = link->ap;  in hpt37x_pre_reset()
392 	struct pci_dev *pdev = to_pci_dev(ap->host->dev);  in hpt37x_pre_reset()
399 	if (!pci_test_config_bits(pdev, &hpt37x_enable_bits[ap->port_no]))  in hpt37x_pre_reset()
400 		return -ENOENT;  in hpt37x_pre_reset()
403 	pci_write_config_byte(pdev, 0x50 + 4 * ap->port_no, 0x37);  in hpt37x_pre_reset()
410 	pci_read_config_byte(pdev, 0x51 + 4 * ap->port_no, &mcr2);  in hpt37x_pre_reset()
412 	if (pdev->device == PCI_DEVICE_ID_TTI_HPT366 && pdev->revision < 5) {  in hpt37x_pre_reset()
418 	pci_write_config_byte(pdev, 0x51 + 4 * ap->port_no, mcr2);  in hpt37x_pre_reset()
426 	struct pci_dev *pdev = to_pci_dev(ap->host->dev);  in hpt37x_set_mode()
427 	int addr = 0x40 + 4 * (adev->devno + 2 * ap->port_no);  in hpt37x_set_mode()
445  *	hpt37x_set_piomode		-	PIO setup
454 	hpt37x_set_mode(ap, adev, adev->pio_mode);  in hpt37x_set_piomode()
458  *	hpt37x_set_dmamode		-	DMA timing setup
467 	hpt37x_set_mode(ap, adev, adev->dma_mode);  in hpt37x_set_dmamode()
471  *	hpt370_bmdma_stop		-	DMA engine stop
479 	struct ata_port *ap = qc->ap;  in hpt370_bmdma_stop()
480 	struct pci_dev *pdev = to_pci_dev(ap->host->dev);  in hpt370_bmdma_stop()
481 	void __iomem *bmdma = ap->ioaddr.bmdma_addr;  in hpt370_bmdma_stop()
491 		pci_write_config_byte(pdev, 0x50 + 4 * ap->port_no, 0x37);  in hpt370_bmdma_stop()
501 		pci_write_config_byte(pdev, 0x50 + 4 * ap->port_no, 0x37);  in hpt370_bmdma_stop()
508  *	hpt37x_bmdma_stop		-	DMA engine stop
516 	struct ata_port *ap = qc->ap;  in hpt37x_bmdma_stop()
517 	struct pci_dev *pdev = to_pci_dev(ap->host->dev);  in hpt37x_bmdma_stop()
518 	int mscreg = 0x50 + 4 * ap->port_no;  in hpt37x_bmdma_stop()
523 	if (bwsr_stat & (1 << ap->port_no))  in hpt37x_bmdma_stop()
594  *	hpt37x_clock_slot	-	Turn timing to PC clock entry
613  *	hpt37x_calibrate_dpll		-	Calibrate the DPLL loop
657 	if (pdev->device == PCI_DEVICE_ID_TTI_HPT374 &&  in hpt37x_pci_clock()
658 	    (PCI_FUNC(pdev->devfn) & 1)) {  in hpt37x_pci_clock()
661 		pdev_fn0 = pci_get_slot(pdev->bus, pdev->devfn - 1);  in hpt37x_pci_clock()
676 		dev_warn(&pdev->dev, "BIOS clock data not set\n");  in hpt37x_pci_clock()
701  *	hpt37x_init_one		-	Initialise an HPT37X/302
734 	/* HPT370 - UDMA100 */  in hpt37x_init_one()
742 	/* HPT370A - UDMA100 */  in hpt37x_init_one()
750 	/* HPT370 - UDMA66 */  in hpt37x_init_one()
758 	/* HPT370A - UDMA66 */  in hpt37x_init_one()
766 	/* HPT372 - UDMA133 */  in hpt37x_init_one()
774 	/* HPT371, 302 - UDMA133 */  in hpt37x_init_one()
782 	/* HPT374 - UDMA100, function 1 uses different cable_detect method */  in hpt37x_init_one()
801 	u8 rev = dev->revision;  in hpt37x_init_one()
817 	switch (dev->device) {  in hpt37x_init_one()
822 			return -ENODEV;  in hpt37x_init_one()
825 			return -ENODEV;  in hpt37x_init_one()
843 			dev_err(&dev->dev,  in hpt37x_init_one()
846 			return -ENODEV;  in hpt37x_init_one()
852 			return -ENODEV;  in hpt37x_init_one()
859 			return -ENODEV;  in hpt37x_init_one()
866 			return -ENODEV;  in hpt37x_init_one()
879 		if (!(PCI_FUNC(dev->devfn) & 1))  in hpt37x_init_one()
885 		dev_err(&dev->dev, "PCI table is bogus, please report (%d)\n",  in hpt37x_init_one()
886 			dev->device);  in hpt37x_init_one()
887 		return -ENODEV;  in hpt37x_init_one()
903 	 * So,  we manually disable the non-existing channel here  in hpt37x_init_one()
906 	if (dev->device == PCI_DEVICE_ID_TTI_HPT371) {  in hpt37x_init_one()
916 	 * to prevent drives having problems with 40-pin cables. Needed  in hpt37x_init_one()
917 	 * for some drives such as IBM-DTLA which will not enter ready  in hpt37x_init_one()
930 	freq = hpt37x_pci_clock(dev, chip_table->base);  in hpt37x_init_one()
932 		return -ENODEV;  in hpt37x_init_one()
940 	if (chip_table->clocks[clock_slot] == NULL || prefer_dpll) {  in hpt37x_init_one()
951 		dpll = (ppi[0]->udma_mask & 0xC0) ? 3 : 2;  in hpt37x_init_one()
971 				f_low -= adjust >> 1;  in hpt37x_init_one()
978 			dev_err(&dev->dev, "DPLL did not stabilize!\n");  in hpt37x_init_one()
979 			return -ENODEV;  in hpt37x_init_one()
986 		dev_info(&dev->dev, "bus clock %dMHz, using %dMHz DPLL\n",  in hpt37x_init_one()
989 		private_data = (void *)chip_table->clocks[clock_slot];  in hpt37x_init_one()
1001 		dev_info(&dev->dev, "%s using %dMHz bus clock\n",  in hpt37x_init_one()
1002 			chip_table->name, MHz[clock_slot]);  in hpt37x_init_one()
1029 MODULE_DESCRIPTION("low-level driver for the Highpoint HPT37x/30x");