1 // SPDX-License-Identifier: GPL-2.0-or-later
6  *  linux/drivers/ide/pdc202xx.c	Version 0.35	Mar. 30, 2002
7  *  Copyright (C) 1998-2002		Andre Hedrick <andre@linux-ide.org>
8  *  Copyright (C) 2005-2007		MontaVista Software, Inc.
9  *  Portions Copyright (C) 1999 Promise Technology, Inc.
43 	switch(pdev->device) {  in max_dma_rate()
63  * get_indexed_reg - Get indexed register
71 	outb(index, hwif->dma_base + 1);  in get_indexed_reg()
72 	value = inb(hwif->dma_base + 3);  in get_indexed_reg()
79  * set_indexed_reg - Set indexed register
85 	outb(index, hwif->dma_base + 1);  in set_indexed_reg()
86 	outb(value, hwif->dma_base + 3);  in set_indexed_reg()
119 	{ 0x4a, 0x0f, 0xd5 },	/* UDMA mode 0 */
120 	{ 0x3a, 0x0a, 0xd0 },	/* UDMA mode 1 */
121 	{ 0x2a, 0x07, 0xcd },	/* UDMA mode 2 */
122 	{ 0x1a, 0x05, 0xcd },	/* UDMA mode 3 */
123 	{ 0x1a, 0x03, 0xcd },	/* UDMA mode 4 */
124 	{ 0x1a, 0x02, 0xcb },	/* UDMA mode 5 */
125 	{ 0x1a, 0x01, 0xcb },	/* UDMA mode 6 */
130 	struct pci_dev *dev	= to_pci_dev(hwif->dev);  in pdcnew_set_dma_mode()
131 	u8 adj			= (drive->dn & 1) ? 0x08 : 0x00;  in pdcnew_set_dma_mode()
132 	const u8 speed		= drive->dma_mode;  in pdcnew_set_dma_mode()
136 	 * IDE_HFLAG_POST_SET_MODE in ->host_flags).  PDC202xx hardware will  in pdcnew_set_dma_mode()
159 		/* Set tHOLD bit to 0 if using UDMA mode 2 */  in pdcnew_set_dma_mode()
168 	struct pci_dev *dev = to_pci_dev(hwif->dev);  in pdcnew_set_pio_mode()
169 	u8 adj = (drive->dn & 1) ? 0x08 : 0x00;  in pdcnew_set_pio_mode()
170 	const u8 pio = drive->pio_mode - XFER_PIO_0;  in pdcnew_set_pio_mode()
193 		drive->hwif->channel ? "Secondary" : "Primary");  in pdcnew_reset()
197  * read_counter - Read the byte count registers
223 		 * The 30-bit decrementing counter is read in 4 pieces.  in read_counter()
227 	} while (retry-- && (((last ^ count) & 0x3fff8000) || last < count));  in read_counter()
236  * detect_pll_input_clock - Detect the PLL input clock in Hz.
273 	pll_input = ((start_count - end_count) & 0x3fffffff) / 10 *  in detect_pll_input_clock()
287 	if (np == NULL || !of_device_is_compatible(np, "kiwi-root"))  in apple_kiwi_init()
290 	if (pdev->revision >= 0x03) {  in apple_kiwi_init()
308 		return -EFAULT;  in init_chipset_pdcnew()
327 	 * On some systems, where PCI bus is running at non-standard clock rate  in init_chipset_pdcnew()
380 	f = (ratio * (r + 2)) / 1000 - 2;  in init_chipset_pdcnew()
424 	dev2 = pci_get_slot(dev->bus, PCI_DEVFN(PCI_SLOT(dev->devfn) + 1,  in pdc20270_get_dev2()
425 						PCI_FUNC(dev->devfn)));  in pdc20270_get_dev2()
428 	    dev2->vendor == dev->vendor &&  in pdc20270_get_dev2()
429 	    dev2->device == dev->device) {  in pdc20270_get_dev2()
431 		if (dev2->irq != dev->irq) {  in pdc20270_get_dev2()
432 			dev2->irq = dev->irq;  in pdc20270_get_dev2()
450 #define DECLARE_PDCNEW_DEV(udma) \  argument
460 		.udma_mask	= udma, \
469  *	pdc202new_init_one	-	called when a pdc202xx is found
479 	const struct ide_port_info *d = &pdcnew_chipsets[id->driver_data];  in pdc202new_init_one()
480 	struct pci_dev *bridge = dev->bus->self;  in pdc202new_init_one()
482 	if (dev->device == PCI_DEVICE_ID_PROMISE_20270 && bridge &&  in pdc202new_init_one()
483 	    bridge->vendor == PCI_VENDOR_ID_DEC &&  in pdc202new_init_one()
484 	    bridge->device == PCI_DEVICE_ID_DEC_21150) {  in pdc202new_init_one()
487 		if (PCI_SLOT(dev->devfn) & 2)  in pdc202new_init_one()
488 			return -ENODEV;  in pdc202new_init_one()
500 	if (dev->device == PCI_DEVICE_ID_PROMISE_20276 && bridge &&  in pdc202new_init_one()
501 	    bridge->vendor == PCI_VENDOR_ID_INTEL &&  in pdc202new_init_one()
502 	    (bridge->device == PCI_DEVICE_ID_INTEL_I960 ||  in pdc202new_init_one()
503 	     bridge->device == PCI_DEVICE_ID_INTEL_I960RM)) {  in pdc202new_init_one()
506 		return -ENODEV;  in pdc202new_init_one()
515 	struct pci_dev *dev2 = host->dev[1] ? to_pci_dev(host->dev[1]) : NULL;  in pdc202new_remove()