1 // SPDX-License-Identifier: GPL-2.0-or-later
5  * Copyright (C) 2006 Texas Instruments.
6  * Copyright (C) 2007 MontaVista Software, Inc., <source@mvista.com>
8  * ----------------------------------------------------------------------------
10  * ----------------------------------------------------------------------------
50 	unsigned int rptime;	/* tRP -- Ready to pause time (nsec) */
51 	unsigned int cycletime;	/* tCYCTYP2/2 -- avg Cycle Time (nsec) */
56 	{ 160, 240 / 2 },	/* UDMA Mode 0 */
57 	{ 125, 160 / 2 },	/* UDMA Mode 1 */
58 	{ 100, 120 / 2 },	/* UDMA Mode 2 */
59 	{ 100,  90 / 2 },	/* UDMA Mode 3 */
60 	{ 100,  60 / 2 },	/* UDMA Mode 4 */
61 	{  85,  40 / 2 },	/* UDMA Mode 5 */
73 			  ideclk_period) - 1;  in palm_bk3710_setudmamode()
74 	tenv = DIV_ROUND_UP(20, ideclk_period) - 1;  in palm_bk3710_setudmamode()
76 			   ideclk_period) - 1;  in palm_bk3710_setudmamode()
93 	/* Enable UDMA for Device */  in palm_bk3710_setudmamode()
109 	cycletime = max_t(int, t->cycle, min_cycle);  in palm_bk3710_setdmamode()
113 	td = DIV_ROUND_UP(t->active, ideclk_period);  in palm_bk3710_setdmamode()
114 	tkw = t0 - td - 1;  in palm_bk3710_setdmamode()
115 	td -= 1;  in palm_bk3710_setdmamode()
125 	/* Disable UDMA for Device */  in palm_bk3710_setdmamode()
142 	t2 = DIV_ROUND_UP(t->active, ideclk_period);  in palm_bk3710_setpiomode()
144 	t2i = t0 - t2 - 1;  in palm_bk3710_setpiomode()
145 	t2 -= 1;  in palm_bk3710_setpiomode()
156 		u8 mode2 = mate->pio_mode - XFER_PIO_0;  in palm_bk3710_setpiomode()
163 	t0 = DIV_ROUND_UP(t->cyc8b, ideclk_period);  in palm_bk3710_setpiomode()
164 	t2 = DIV_ROUND_UP(t->act8b, ideclk_period);  in palm_bk3710_setpiomode()
166 	t2i = t0 - t2 - 1;  in palm_bk3710_setpiomode()
167 	t2 -= 1;  in palm_bk3710_setpiomode()
180 	int is_slave = drive->dn & 1;  in palm_bk3710_set_dma_mode()
181 	void __iomem *base = (void __iomem *)hwif->dma_base;  in palm_bk3710_set_dma_mode()
182 	const u8 xferspeed = drive->dma_mode;  in palm_bk3710_set_dma_mode()
186 					xferspeed - XFER_UDMA_0);  in palm_bk3710_set_dma_mode()
189 				       drive->id[ATA_ID_EIDE_DMA_MIN],  in palm_bk3710_set_dma_mode()
197 	int is_slave = drive->dn & 1;  in palm_bk3710_set_pio_mode()
199 	void __iomem *base = (void __iomem *)hwif->dma_base;  in palm_bk3710_set_pio_mode()
200 	const u8 pio = drive->pio_mode - XFER_PIO_0;  in palm_bk3710_set_pio_mode()
232 	 * UDMACTL Ultra-ATA DMA Control  in palm_bk3710_chipinit()
274 	printk(KERN_INFO "    %s: MMIO-DMA\n", hwif->name);  in palm_bk3710_init_dma()
277 		return -1;  in palm_bk3710_init_dma()
279 	hwif->dma_base = hwif->io_ports.data_addr - IDE_PALM_ATA_PRI_REG_OFFSET;  in palm_bk3710_init_dma()
309 	clk = clk_get(&pdev->dev, NULL);  in palm_bk3710_probe()
311 		return -ENODEV;  in palm_bk3710_probe()
316 		return -EINVAL;  in palm_bk3710_probe()
324 		return -ENODEV;  in palm_bk3710_probe()
330 		return -ENODEV;  in palm_bk3710_probe()
334 	if (request_mem_region(mem->start, mem_size, "palm_bk3710") == NULL) {  in palm_bk3710_probe()
336 		return -EBUSY;  in palm_bk3710_probe()
339 	base = ioremap(mem->start, mem_size);  in palm_bk3710_probe()
342 		release_mem_region(mem->start, mem_size);  in palm_bk3710_probe()
343 		return -ENOMEM;  in palm_bk3710_probe()
350 	for (i = 0; i < IDE_NR_PORTS - 2; i++)  in palm_bk3710_probe()
355 	hw.irq = irq->start;  in palm_bk3710_probe()
356 	hw.dev = &pdev->dev;  in palm_bk3710_probe()