20  *	Don't use LBA48 mode on ALi <= 0xC4
21  *	Don't poke 0x79 with a non ALi northbridge
23  *	Allow UDMA6 on revisions > 0xC4
54 	int pio_fifo = 0x54 + hwif->channel;  in ali_fifo_control()
59 	fifo &= ~(0x0F << shift);  in ali_fifo_control()
68 	int port = hwif->channel ? 0x5c : 0x58;  in ali_program_timings()
69 	int udmat = 0x56 + hwif->channel;  in ali_program_timings()
75 	udma &= ~(0x0F << shift);  in ali_program_timings()
126 	ali_fifo_control(hwif, drive, (drive->media == ide_disk) ? 0x05 : 0x00);  in ali_set_pio_mode()
128 	ali_program_timings(hwif, drive, &t, 0);  in ali_set_pio_mode()
138  *		No UDMA on revisions <= 0x20
139  *		Disk only for revisions < 0xC2
145 	if (m5229_revision > 0x20 && m5229_revision < 0xC2) {  in ali_udma_filter()
147 			return 0;  in ali_udma_filter()
150 			return 0;  in ali_udma_filter()
166 	static u8 udma_timing[7] = { 0xC, 0xB, 0xA, 0x9, 0x8, 0xF, 0xD };  in ali_set_dma_mode()
172 	u8 tmpbyte		= 0x00;  in ali_set_dma_mode()
190 		ali_program_timings(hwif, drive, &t, 0);  in ali_set_dma_mode()
195 			pci_read_config_byte(dev, 0x4b, &tmpbyte);  in ali_set_dma_mode()
197 			pci_write_config_byte(dev, 0x4b, tmpbyte);  in ali_set_dma_mode()
212 	if (m5229_revision < 0xC2 && drive->media != ide_disk) {  in ali_dma_check()
216 	return 0;  in ali_dma_check()
231 	struct pci_dev *north = pci_get_slot(dev->bus, PCI_DEVFN(0,0));  in init_chipset_ali15x3()
239 	if (m5229_revision < 0xC2) {  in init_chipset_ali15x3()
241 		 * revision 0x20 (1543-E, 1543-F)  in init_chipset_ali15x3()
242 		 * revision 0xC0, 0xC1 (1543C-C, 1543C-D, 1543C-E)  in init_chipset_ali15x3()
243 		 * clear CD-ROM DMA write bit, m5229, 0x4b, bit 7  in init_chipset_ali15x3()
245 		pci_read_config_byte(dev, 0x4b, &tmpbyte);  in init_chipset_ali15x3()
249 		pci_write_config_byte(dev, 0x4b, tmpbyte & 0x7F);  in init_chipset_ali15x3()
251 		 * check m1533, 0x5e, bit 1~4 == 1001 => & 00011110 = 00010010  in init_chipset_ali15x3()
253 		if (m5229_revision >= 0x20 && isa_dev) {  in init_chipset_ali15x3()
254 			pci_read_config_byte(isa_dev, 0x5e, &tmpbyte);  in init_chipset_ali15x3()
255 			chip_is_1543c_e = ((tmpbyte & 0x1e) == 0x12) ? 1: 0;  in init_chipset_ali15x3()
269 	 * enable "Cable Detection", m5229, 0x4b, bit3  in init_chipset_ali15x3()
271 	pci_read_config_byte(dev, 0x4b, &tmpbyte);  in init_chipset_ali15x3()
272 	pci_write_config_byte(dev, 0x4b, tmpbyte | 0x08);  in init_chipset_ali15x3()
277 	 * box without a device at 0:0.0. The ALi bridge will be at  in init_chipset_ali15x3()
278 	 * 0:0.0 so if we didn't find one we know what is cooking.  in init_chipset_ali15x3()
283 	if (m5229_revision < 0xC5 && isa_dev)  in init_chipset_ali15x3()
286 		 * set south-bridge's enable bit, m1533, 0x79  in init_chipset_ali15x3()
289 		pci_read_config_byte(isa_dev, 0x79, &tmpbyte);  in init_chipset_ali15x3()
290 		if (m5229_revision == 0xC2) {  in init_chipset_ali15x3()
292 			 * 1543C-B0 (m1533, 0x79, bit 2)  in init_chipset_ali15x3()
294 			pci_write_config_byte(isa_dev, 0x79, tmpbyte | 0x04);  in init_chipset_ali15x3()
295 		} else if (m5229_revision >= 0xC3) {  in init_chipset_ali15x3()
297 			 * 1553/1535 (m1533, 0x79, bit 1)  in init_chipset_ali15x3()
299 			pci_write_config_byte(isa_dev, 0x79, tmpbyte | 0x02);  in init_chipset_ali15x3()
305 	 * CD_ROM DMA on (m5229, 0x53, bit0)  in init_chipset_ali15x3()
307 	 * PIO FIFO off (m5229, 0x53, bit1)  in init_chipset_ali15x3()
308 	 *      The hardware will use 0x54h and 0x55h to control PIO FIFO.  in init_chipset_ali15x3()
311 	 *	0x53 changes meaning on later revs - we must no touch  in init_chipset_ali15x3()
312 	 *	bit 1 on them.  Need to check if 0x20 is the right break.  in init_chipset_ali15x3()
314 	if (m5229_revision >= 0x20) {  in init_chipset_ali15x3()
315 		pci_read_config_byte(dev, 0x53, &tmpbyte);  in init_chipset_ali15x3()
317 		if (m5229_revision <= 0x20)  in init_chipset_ali15x3()
318 			tmpbyte = (tmpbyte & (~0x02)) | 0x01;  in init_chipset_ali15x3()
319 		else if (m5229_revision == 0xc7 || m5229_revision == 0xc8)  in init_chipset_ali15x3()
320 			tmpbyte |= 0x03;  in init_chipset_ali15x3()
322 			tmpbyte |= 0x01;  in init_chipset_ali15x3()
324 		pci_write_config_byte(dev, 0x53, tmpbyte);  in init_chipset_ali15x3()
329 	return 0;  in init_chipset_ali15x3()
357 	if (pdev->subsystem_vendor == 0x10CF &&  in ali_cable_override()
358 	    pdev->subsystem_device == 0x10AF)  in ali_cable_override()
362 	if (pdev->subsystem_vendor == 0x1071 &&  in ali_cable_override()
363 	    pdev->subsystem_device == 0x8317)  in ali_cable_override()
370 	return 0;  in ali_cable_override()
386 	if (m5229_revision >= 0xC2) {  in ali_cable_detect()
390 		 * 0x4a bit0 is 0 => primary channel has 80-pin  in ali_cable_detect()
391 		 * 0x4a bit1 is 0 => secondary channel has 80-pin  in ali_cable_detect()
399 			pci_read_config_byte(dev, 0x4a, &tmpbyte);  in ali_cable_detect()
400 			if ((tmpbyte & (1 << hwif->channel)) == 0)  in ali_cable_detect()
422 				      1, 11, 0, 12, 0, 14, 0, 15 };  in init_hwif_ali15x3()
429 		pci_read_config_byte(isa_dev, 0x58, &ideic);  in init_hwif_ali15x3()
432 		ideic = ideic & 0x03;  in init_hwif_ali15x3()
435 		if ((hwif->channel && ideic == 0x03) ||  in init_hwif_ali15x3()
440 			pci_read_config_byte(isa_dev, 0x44, &inmir);  in init_hwif_ali15x3()
441 			inmir = inmir & 0x0f;  in init_hwif_ali15x3()
443 		} else if (hwif->channel && !(ideic & 0x01)) {  in init_hwif_ali15x3()
447 			pci_read_config_byte(isa_dev, 0x75, &inmir);  in init_hwif_ali15x3()
448 			inmir = inmir & 0x0f;  in init_hwif_ali15x3()
451 		if(irq >= 0)  in init_hwif_ali15x3()
472 	if (base == 0)  in init_dma_ali15x3()
477 	if (ide_pci_check_simplex(hwif, d) < 0)  in init_dma_ali15x3()
480 	if (ide_pci_set_master(dev, d->name) < 0)  in init_dma_ali15x3()
484 		outb(inb(base + 2) & 0x60, base + 2);  in init_dma_ali15x3()
486 	printk(KERN_INFO "    %s: BM-DMA at 0x%04lx-0x%04lx\n",  in init_dma_ali15x3()
492 	return 0;  in init_dma_ali15x3()
540 	/* don't use LBA48 DMA on ALi devices before rev 0xC5 */  in alim15x3_init_one()
541 	if (rev <= 0xC4)  in alim15x3_init_one()
544 	if (rev >= 0x20) {  in alim15x3_init_one()
545 		if (rev == 0x20)  in alim15x3_init_one()
548 		if (rev < 0xC2)  in alim15x3_init_one()
550 		else if (rev == 0xC2 || rev == 0xC3)  in alim15x3_init_one()
552 		else if (rev == 0xC4)  in alim15x3_init_one()
561 		d.mwdma_mask = d.swdma_mask = 0;  in alim15x3_init_one()
564 	if (idx == 0)  in alim15x3_init_one()
572 	{ PCI_VDEVICE(AL, PCI_DEVICE_ID_AL_M5229), 0 },
574 	{ 0, },