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v4.17
  1// SPDX-License-Identifier: GPL-2.0
  2/*
  3 * Driver for the NXP ISP1760 chip
  4 *
 
  5 * Copyright 2014 Laurent Pinchart
  6 * Copyright 2007 Sebastian Siewior
  7 *
  8 * Contacts:
  9 *	Sebastian Siewior <bigeasy@linutronix.de>
 10 *	Laurent Pinchart <laurent.pinchart@ideasonboard.com>
 
 11 */
 12
 13#include <linux/delay.h>
 14#include <linux/gpio/consumer.h>
 15#include <linux/io.h>
 16#include <linux/kernel.h>
 17#include <linux/module.h>
 
 18#include <linux/slab.h>
 19#include <linux/usb.h>
 20
 21#include "isp1760-core.h"
 22#include "isp1760-hcd.h"
 23#include "isp1760-regs.h"
 24#include "isp1760-udc.h"
 25
 26static void isp1760_init_core(struct isp1760_device *isp)
 27{
 28	u32 otgctrl;
 29	u32 hwmode;
 
 30
 31	/* Low-level chip reset */
 32	if (isp->rst_gpio) {
 33		gpiod_set_value_cansleep(isp->rst_gpio, 1);
 34		mdelay(50);
 35		gpiod_set_value_cansleep(isp->rst_gpio, 0);
 36	}
 37
 38	/*
 39	 * Reset the host controller, including the CPU interface
 40	 * configuration.
 41	 */
 42	isp1760_write32(isp->regs, HC_RESET_REG, SW_RESET_RESET_ALL);
 43	msleep(100);
 44
 45	/* Setup HW Mode Control: This assumes a level active-low interrupt */
 46	hwmode = HW_DATA_BUS_32BIT;
 
 
 
 47
 48	if (isp->devflags & ISP1760_FLAG_BUS_WIDTH_16)
 49		hwmode &= ~HW_DATA_BUS_32BIT;
 
 
 50	if (isp->devflags & ISP1760_FLAG_ANALOG_OC)
 51		hwmode |= HW_ANA_DIGI_OC;
 52	if (isp->devflags & ISP1760_FLAG_DACK_POL_HIGH)
 53		hwmode |= HW_DACK_POL_HIGH;
 54	if (isp->devflags & ISP1760_FLAG_DREQ_POL_HIGH)
 55		hwmode |= HW_DREQ_POL_HIGH;
 56	if (isp->devflags & ISP1760_FLAG_INTR_POL_HIGH)
 57		hwmode |= HW_INTR_HIGH_ACT;
 58	if (isp->devflags & ISP1760_FLAG_INTR_EDGE_TRIG)
 59		hwmode |= HW_INTR_EDGE_TRIG;
 60
 61	/*
 62	 * The ISP1761 has a dedicated DC IRQ line but supports sharing the HC
 63	 * IRQ line for both the host and device controllers. Hardcode IRQ
 64	 * sharing for now and disable the DC interrupts globally to avoid
 65	 * spurious interrupts during HCD registration.
 66	 */
 67	if (isp->devflags & ISP1760_FLAG_ISP1761) {
 68		isp1760_write32(isp->regs, DC_MODE, 0);
 69		hwmode |= HW_COMN_IRQ;
 70	}
 71
 72	/*
 73	 * We have to set this first in case we're in 16-bit mode.
 74	 * Write it twice to ensure correct upper bits if switching
 75	 * to 16-bit mode.
 76	 */
 77	isp1760_write32(isp->regs, HC_HW_MODE_CTRL, hwmode);
 78	isp1760_write32(isp->regs, HC_HW_MODE_CTRL, hwmode);
 79
 80	/*
 81	 * PORT 1 Control register of the ISP1760 is the OTG control register
 82	 * on ISP1761.
 83	 *
 84	 * TODO: Really support OTG. For now we configure port 1 in device mode
 85	 * when OTG is requested.
 86	 */
 87	if ((isp->devflags & ISP1760_FLAG_ISP1761) &&
 88	    (isp->devflags & ISP1760_FLAG_OTG_EN))
 89		otgctrl = ((HW_DM_PULLDOWN | HW_DP_PULLDOWN) << 16)
 90			| HW_OTG_DISABLE;
 91	else
 92		otgctrl = (HW_SW_SEL_HC_DC << 16)
 93			| (HW_VBUS_DRV | HW_SEL_CP_EXT);
 94
 95	isp1760_write32(isp->regs, HC_PORT1_CTRL, otgctrl);
 
 
 
 96
 97	dev_info(isp->dev, "bus width: %u, oc: %s\n",
 
 
 98		 isp->devflags & ISP1760_FLAG_BUS_WIDTH_16 ? 16 : 32,
 
 99		 isp->devflags & ISP1760_FLAG_ANALOG_OC ? "analog" : "digital");
 
 
100}
101
102void isp1760_set_pullup(struct isp1760_device *isp, bool enable)
103{
104	isp1760_write32(isp->regs, HW_OTG_CTRL_SET,
105			enable ? HW_DP_PULLUP : HW_DP_PULLUP << 16);
 
 
 
 
106}
107
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
108int isp1760_register(struct resource *mem, int irq, unsigned long irqflags,
109		     struct device *dev, unsigned int devflags)
110{
 
 
 
 
111	struct isp1760_device *isp;
112	bool udc_disabled = !(devflags & ISP1760_FLAG_ISP1761);
 
 
 
113	int ret;
 
114
115	/*
116	 * If neither the HCD not the UDC is enabled return an error, as no
117	 * device would be registered.
118	 */
 
 
 
119	if ((!IS_ENABLED(CONFIG_USB_ISP1760_HCD) || usb_disabled()) &&
120	    (!IS_ENABLED(CONFIG_USB_ISP1761_UDC) || udc_disabled))
121		return -ENODEV;
122
123	/* prevent usb-core allocating DMA pages */
124	dev->dma_mask = NULL;
125
126	isp = devm_kzalloc(dev, sizeof(*isp), GFP_KERNEL);
127	if (!isp)
128		return -ENOMEM;
129
130	isp->dev = dev;
131	isp->devflags = devflags;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
132
133	isp->rst_gpio = devm_gpiod_get_optional(dev, NULL, GPIOD_OUT_HIGH);
134	if (IS_ERR(isp->rst_gpio))
135		return PTR_ERR(isp->rst_gpio);
136
137	isp->regs = devm_ioremap_resource(dev, mem);
138	if (IS_ERR(isp->regs))
139		return PTR_ERR(isp->regs);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
140
141	isp1760_init_core(isp);
 
 
142
143	if (IS_ENABLED(CONFIG_USB_ISP1760_HCD) && !usb_disabled()) {
144		ret = isp1760_hcd_register(&isp->hcd, isp->regs, mem, irq,
145					   irqflags | IRQF_SHARED, dev);
146		if (ret < 0)
147			return ret;
148	}
149
150	if (IS_ENABLED(CONFIG_USB_ISP1761_UDC) && !udc_disabled) {
151		ret = isp1760_udc_register(isp, irq, irqflags);
152		if (ret < 0) {
153			isp1760_hcd_unregister(&isp->hcd);
154			return ret;
155		}
156	}
157
158	dev_set_drvdata(dev, isp);
159
160	return 0;
161}
162
163void isp1760_unregister(struct device *dev)
164{
165	struct isp1760_device *isp = dev_get_drvdata(dev);
166
167	isp1760_udc_unregister(isp);
168	isp1760_hcd_unregister(&isp->hcd);
169}
170
171MODULE_DESCRIPTION("Driver for the ISP1760 USB-controller from NXP");
172MODULE_AUTHOR("Sebastian Siewior <bigeasy@linuxtronix.de>");
173MODULE_LICENSE("GPL v2");
v5.14.15
  1// SPDX-License-Identifier: GPL-2.0
  2/*
  3 * Driver for the NXP ISP1760 chip
  4 *
  5 * Copyright 2021 Linaro, Rui Miguel Silva
  6 * Copyright 2014 Laurent Pinchart
  7 * Copyright 2007 Sebastian Siewior
  8 *
  9 * Contacts:
 10 *	Sebastian Siewior <bigeasy@linutronix.de>
 11 *	Laurent Pinchart <laurent.pinchart@ideasonboard.com>
 12 *	Rui Miguel Silva <rui.silva@linaro.org>
 13 */
 14
 15#include <linux/delay.h>
 16#include <linux/gpio/consumer.h>
 17#include <linux/io.h>
 18#include <linux/kernel.h>
 19#include <linux/module.h>
 20#include <linux/regmap.h>
 21#include <linux/slab.h>
 22#include <linux/usb.h>
 23
 24#include "isp1760-core.h"
 25#include "isp1760-hcd.h"
 26#include "isp1760-regs.h"
 27#include "isp1760-udc.h"
 28
 29static int isp1760_init_core(struct isp1760_device *isp)
 30{
 31	struct isp1760_hcd *hcd = &isp->hcd;
 32	struct isp1760_udc *udc = &isp->udc;
 33	u32 otg_ctrl;
 34
 35	/* Low-level chip reset */
 36	if (isp->rst_gpio) {
 37		gpiod_set_value_cansleep(isp->rst_gpio, 1);
 38		msleep(50);
 39		gpiod_set_value_cansleep(isp->rst_gpio, 0);
 40	}
 41
 42	/*
 43	 * Reset the host controller, including the CPU interface
 44	 * configuration.
 45	 */
 46	isp1760_field_set(hcd->fields, SW_RESET_RESET_ALL);
 47	msleep(100);
 48
 49	/* Setup HW Mode Control: This assumes a level active-low interrupt */
 50	if ((isp->devflags & ISP1760_FLAG_ANALOG_OC) && hcd->is_isp1763) {
 51		dev_err(isp->dev, "isp1763 analog overcurrent not available\n");
 52		return -EINVAL;
 53	}
 54
 55	if (isp->devflags & ISP1760_FLAG_BUS_WIDTH_16)
 56		isp1760_field_clear(hcd->fields, HW_DATA_BUS_WIDTH);
 57	if (isp->devflags & ISP1760_FLAG_BUS_WIDTH_8)
 58		isp1760_field_set(hcd->fields, HW_DATA_BUS_WIDTH);
 59	if (isp->devflags & ISP1760_FLAG_ANALOG_OC)
 60		isp1760_field_set(hcd->fields, HW_ANA_DIGI_OC);
 61	if (isp->devflags & ISP1760_FLAG_DACK_POL_HIGH)
 62		isp1760_field_set(hcd->fields, HW_DACK_POL_HIGH);
 63	if (isp->devflags & ISP1760_FLAG_DREQ_POL_HIGH)
 64		isp1760_field_set(hcd->fields, HW_DREQ_POL_HIGH);
 65	if (isp->devflags & ISP1760_FLAG_INTR_POL_HIGH)
 66		isp1760_field_set(hcd->fields, HW_INTR_HIGH_ACT);
 67	if (isp->devflags & ISP1760_FLAG_INTR_EDGE_TRIG)
 68		isp1760_field_set(hcd->fields, HW_INTR_EDGE_TRIG);
 69
 70	/*
 71	 * The ISP1761 has a dedicated DC IRQ line but supports sharing the HC
 72	 * IRQ line for both the host and device controllers. Hardcode IRQ
 73	 * sharing for now and disable the DC interrupts globally to avoid
 74	 * spurious interrupts during HCD registration.
 75	 */
 76	if (isp->devflags & ISP1760_FLAG_ISP1761) {
 77		isp1760_reg_write(udc->regs, ISP176x_DC_MODE, 0);
 78		isp1760_field_set(hcd->fields, HW_COMN_IRQ);
 79	}
 80
 81	/*
 
 
 
 
 
 
 
 
 82	 * PORT 1 Control register of the ISP1760 is the OTG control register
 83	 * on ISP1761.
 84	 *
 85	 * TODO: Really support OTG. For now we configure port 1 in device mode
 
 86	 */
 87	if (isp->devflags & ISP1760_FLAG_ISP1761) {
 88		if (isp->devflags & ISP1760_FLAG_PERIPHERAL_EN) {
 89			otg_ctrl = (ISP176x_HW_DM_PULLDOWN_CLEAR |
 90				    ISP176x_HW_DP_PULLDOWN_CLEAR |
 91				    ISP176x_HW_OTG_DISABLE);
 92		} else {
 93			otg_ctrl = (ISP176x_HW_SW_SEL_HC_DC_CLEAR |
 94				    ISP176x_HW_VBUS_DRV |
 95				    ISP176x_HW_SEL_CP_EXT);
 96		}
 97		isp1760_reg_write(hcd->regs, ISP176x_HC_OTG_CTRL, otg_ctrl);
 98	}
 99
100	dev_info(isp->dev, "%s bus width: %u, oc: %s\n",
101		 hcd->is_isp1763 ? "isp1763" : "isp1760",
102		 isp->devflags & ISP1760_FLAG_BUS_WIDTH_8 ? 8 :
103		 isp->devflags & ISP1760_FLAG_BUS_WIDTH_16 ? 16 : 32,
104		 hcd->is_isp1763 ? "not available" :
105		 isp->devflags & ISP1760_FLAG_ANALOG_OC ? "analog" : "digital");
106
107	return 0;
108}
109
110void isp1760_set_pullup(struct isp1760_device *isp, bool enable)
111{
112	struct isp1760_udc *udc = &isp->udc;
113
114	if (enable)
115		isp1760_field_set(udc->fields, HW_DP_PULLUP);
116	else
117		isp1760_field_set(udc->fields, HW_DP_PULLUP_CLEAR);
118}
119
120/*
121 * ISP1760/61:
122 *
123 * 60kb divided in:
124 * - 32 blocks @ 256  bytes
125 * - 20 blocks @ 1024 bytes
126 * -  4 blocks @ 8192 bytes
127 */
128static const struct isp1760_memory_layout isp176x_memory_conf = {
129	.blocks[0]		= 32,
130	.blocks_size[0]		= 256,
131	.blocks[1]		= 20,
132	.blocks_size[1]		= 1024,
133	.blocks[2]		= 4,
134	.blocks_size[2]		= 8192,
135
136	.slot_num		= 32,
137	.payload_blocks		= 32 + 20 + 4,
138	.payload_area_size	= 0xf000,
139};
140
141/*
142 * ISP1763:
143 *
144 * 20kb divided in:
145 * - 8 blocks @ 256  bytes
146 * - 2 blocks @ 1024 bytes
147 * - 4 blocks @ 4096 bytes
148 */
149static const struct isp1760_memory_layout isp1763_memory_conf = {
150	.blocks[0]		= 8,
151	.blocks_size[0]		= 256,
152	.blocks[1]		= 2,
153	.blocks_size[1]		= 1024,
154	.blocks[2]		= 4,
155	.blocks_size[2]		= 4096,
156
157	.slot_num		= 16,
158	.payload_blocks		= 8 + 2 + 4,
159	.payload_area_size	= 0x5000,
160};
161
162static const struct regmap_range isp176x_hc_volatile_ranges[] = {
163	regmap_reg_range(ISP176x_HC_USBCMD, ISP176x_HC_ATL_PTD_LASTPTD),
164	regmap_reg_range(ISP176x_HC_BUFFER_STATUS, ISP176x_HC_MEMORY),
165	regmap_reg_range(ISP176x_HC_INTERRUPT, ISP176x_HC_OTG_CTRL_CLEAR),
166};
167
168static const struct regmap_access_table isp176x_hc_volatile_table = {
169	.yes_ranges	= isp176x_hc_volatile_ranges,
170	.n_yes_ranges	= ARRAY_SIZE(isp176x_hc_volatile_ranges),
171};
172
173static const struct regmap_config isp1760_hc_regmap_conf = {
174	.name = "isp1760-hc",
175	.reg_bits = 16,
176	.reg_stride = 4,
177	.val_bits = 32,
178	.fast_io = true,
179	.max_register = ISP176x_HC_OTG_CTRL_CLEAR,
180	.volatile_table = &isp176x_hc_volatile_table,
181};
182
183static const struct reg_field isp1760_hc_reg_fields[] = {
184	[HCS_PPC]		= REG_FIELD(ISP176x_HC_HCSPARAMS, 4, 4),
185	[HCS_N_PORTS]		= REG_FIELD(ISP176x_HC_HCSPARAMS, 0, 3),
186	[HCC_ISOC_CACHE]	= REG_FIELD(ISP176x_HC_HCCPARAMS, 7, 7),
187	[HCC_ISOC_THRES]	= REG_FIELD(ISP176x_HC_HCCPARAMS, 4, 6),
188	[CMD_LRESET]		= REG_FIELD(ISP176x_HC_USBCMD, 7, 7),
189	[CMD_RESET]		= REG_FIELD(ISP176x_HC_USBCMD, 1, 1),
190	[CMD_RUN]		= REG_FIELD(ISP176x_HC_USBCMD, 0, 0),
191	[STS_PCD]		= REG_FIELD(ISP176x_HC_USBSTS, 2, 2),
192	[HC_FRINDEX]		= REG_FIELD(ISP176x_HC_FRINDEX, 0, 13),
193	[FLAG_CF]		= REG_FIELD(ISP176x_HC_CONFIGFLAG, 0, 0),
194	[HC_ISO_PTD_DONEMAP]	= REG_FIELD(ISP176x_HC_ISO_PTD_DONEMAP, 0, 31),
195	[HC_ISO_PTD_SKIPMAP]	= REG_FIELD(ISP176x_HC_ISO_PTD_SKIPMAP, 0, 31),
196	[HC_ISO_PTD_LASTPTD]	= REG_FIELD(ISP176x_HC_ISO_PTD_LASTPTD, 0, 31),
197	[HC_INT_PTD_DONEMAP]	= REG_FIELD(ISP176x_HC_INT_PTD_DONEMAP, 0, 31),
198	[HC_INT_PTD_SKIPMAP]	= REG_FIELD(ISP176x_HC_INT_PTD_SKIPMAP, 0, 31),
199	[HC_INT_PTD_LASTPTD]	= REG_FIELD(ISP176x_HC_INT_PTD_LASTPTD, 0, 31),
200	[HC_ATL_PTD_DONEMAP]	= REG_FIELD(ISP176x_HC_ATL_PTD_DONEMAP, 0, 31),
201	[HC_ATL_PTD_SKIPMAP]	= REG_FIELD(ISP176x_HC_ATL_PTD_SKIPMAP, 0, 31),
202	[HC_ATL_PTD_LASTPTD]	= REG_FIELD(ISP176x_HC_ATL_PTD_LASTPTD, 0, 31),
203	[PORT_OWNER]		= REG_FIELD(ISP176x_HC_PORTSC1, 13, 13),
204	[PORT_POWER]		= REG_FIELD(ISP176x_HC_PORTSC1, 12, 12),
205	[PORT_LSTATUS]		= REG_FIELD(ISP176x_HC_PORTSC1, 10, 11),
206	[PORT_RESET]		= REG_FIELD(ISP176x_HC_PORTSC1, 8, 8),
207	[PORT_SUSPEND]		= REG_FIELD(ISP176x_HC_PORTSC1, 7, 7),
208	[PORT_RESUME]		= REG_FIELD(ISP176x_HC_PORTSC1, 6, 6),
209	[PORT_PE]		= REG_FIELD(ISP176x_HC_PORTSC1, 2, 2),
210	[PORT_CSC]		= REG_FIELD(ISP176x_HC_PORTSC1, 1, 1),
211	[PORT_CONNECT]		= REG_FIELD(ISP176x_HC_PORTSC1, 0, 0),
212	[ALL_ATX_RESET]		= REG_FIELD(ISP176x_HC_HW_MODE_CTRL, 31, 31),
213	[HW_ANA_DIGI_OC]	= REG_FIELD(ISP176x_HC_HW_MODE_CTRL, 15, 15),
214	[HW_COMN_IRQ]		= REG_FIELD(ISP176x_HC_HW_MODE_CTRL, 10, 10),
215	[HW_DATA_BUS_WIDTH]	= REG_FIELD(ISP176x_HC_HW_MODE_CTRL, 8, 8),
216	[HW_DACK_POL_HIGH]	= REG_FIELD(ISP176x_HC_HW_MODE_CTRL, 6, 6),
217	[HW_DREQ_POL_HIGH]	= REG_FIELD(ISP176x_HC_HW_MODE_CTRL, 5, 5),
218	[HW_INTR_HIGH_ACT]	= REG_FIELD(ISP176x_HC_HW_MODE_CTRL, 2, 2),
219	[HW_INTR_EDGE_TRIG]	= REG_FIELD(ISP176x_HC_HW_MODE_CTRL, 1, 1),
220	[HW_GLOBAL_INTR_EN]	= REG_FIELD(ISP176x_HC_HW_MODE_CTRL, 0, 0),
221	[HC_CHIP_REV]		= REG_FIELD(ISP176x_HC_CHIP_ID, 16, 31),
222	[HC_CHIP_ID_HIGH]	= REG_FIELD(ISP176x_HC_CHIP_ID, 8, 15),
223	[HC_CHIP_ID_LOW]	= REG_FIELD(ISP176x_HC_CHIP_ID, 0, 7),
224	[HC_SCRATCH]		= REG_FIELD(ISP176x_HC_SCRATCH, 0, 31),
225	[SW_RESET_RESET_ALL]	= REG_FIELD(ISP176x_HC_RESET, 0, 0),
226	[ISO_BUF_FILL]		= REG_FIELD(ISP176x_HC_BUFFER_STATUS, 2, 2),
227	[INT_BUF_FILL]		= REG_FIELD(ISP176x_HC_BUFFER_STATUS, 1, 1),
228	[ATL_BUF_FILL]		= REG_FIELD(ISP176x_HC_BUFFER_STATUS, 0, 0),
229	[MEM_BANK_SEL]		= REG_FIELD(ISP176x_HC_MEMORY, 16, 17),
230	[MEM_START_ADDR]	= REG_FIELD(ISP176x_HC_MEMORY, 0, 15),
231	[HC_INTERRUPT]		= REG_FIELD(ISP176x_HC_INTERRUPT, 0, 9),
232	[HC_ATL_IRQ_ENABLE]	= REG_FIELD(ISP176x_HC_INTERRUPT_ENABLE, 8, 8),
233	[HC_INT_IRQ_ENABLE]	= REG_FIELD(ISP176x_HC_INTERRUPT_ENABLE, 7, 7),
234	[HC_ISO_IRQ_MASK_OR]	= REG_FIELD(ISP176x_HC_ISO_IRQ_MASK_OR, 0, 31),
235	[HC_INT_IRQ_MASK_OR]	= REG_FIELD(ISP176x_HC_INT_IRQ_MASK_OR, 0, 31),
236	[HC_ATL_IRQ_MASK_OR]	= REG_FIELD(ISP176x_HC_ATL_IRQ_MASK_OR, 0, 31),
237	[HC_ISO_IRQ_MASK_AND]	= REG_FIELD(ISP176x_HC_ISO_IRQ_MASK_AND, 0, 31),
238	[HC_INT_IRQ_MASK_AND]	= REG_FIELD(ISP176x_HC_INT_IRQ_MASK_AND, 0, 31),
239	[HC_ATL_IRQ_MASK_AND]	= REG_FIELD(ISP176x_HC_ATL_IRQ_MASK_AND, 0, 31),
240	[HW_OTG_DISABLE_CLEAR]	= REG_FIELD(ISP176x_HC_OTG_CTRL, 26, 26),
241	[HW_SW_SEL_HC_DC_CLEAR]	= REG_FIELD(ISP176x_HC_OTG_CTRL, 23, 23),
242	[HW_VBUS_DRV_CLEAR]	= REG_FIELD(ISP176x_HC_OTG_CTRL, 20, 20),
243	[HW_SEL_CP_EXT_CLEAR]	= REG_FIELD(ISP176x_HC_OTG_CTRL, 19, 19),
244	[HW_DM_PULLDOWN_CLEAR]	= REG_FIELD(ISP176x_HC_OTG_CTRL, 18, 18),
245	[HW_DP_PULLDOWN_CLEAR]	= REG_FIELD(ISP176x_HC_OTG_CTRL, 17, 17),
246	[HW_DP_PULLUP_CLEAR]	= REG_FIELD(ISP176x_HC_OTG_CTRL, 16, 16),
247	[HW_OTG_DISABLE]	= REG_FIELD(ISP176x_HC_OTG_CTRL, 10, 10),
248	[HW_SW_SEL_HC_DC]	= REG_FIELD(ISP176x_HC_OTG_CTRL, 7, 7),
249	[HW_VBUS_DRV]		= REG_FIELD(ISP176x_HC_OTG_CTRL, 4, 4),
250	[HW_SEL_CP_EXT]		= REG_FIELD(ISP176x_HC_OTG_CTRL, 3, 3),
251	[HW_DM_PULLDOWN]	= REG_FIELD(ISP176x_HC_OTG_CTRL, 2, 2),
252	[HW_DP_PULLDOWN]	= REG_FIELD(ISP176x_HC_OTG_CTRL, 1, 1),
253	[HW_DP_PULLUP]		= REG_FIELD(ISP176x_HC_OTG_CTRL, 0, 0),
254};
255
256static const struct reg_field isp1763_hc_reg_fields[] = {
257	[CMD_LRESET]		= REG_FIELD(ISP1763_HC_USBCMD, 7, 7),
258	[CMD_RESET]		= REG_FIELD(ISP1763_HC_USBCMD, 1, 1),
259	[CMD_RUN]		= REG_FIELD(ISP1763_HC_USBCMD, 0, 0),
260	[STS_PCD]		= REG_FIELD(ISP1763_HC_USBSTS, 2, 2),
261	[HC_FRINDEX]		= REG_FIELD(ISP1763_HC_FRINDEX, 0, 13),
262	[FLAG_CF]		= REG_FIELD(ISP1763_HC_CONFIGFLAG, 0, 0),
263	[HC_ISO_PTD_DONEMAP]	= REG_FIELD(ISP1763_HC_ISO_PTD_DONEMAP, 0, 15),
264	[HC_ISO_PTD_SKIPMAP]	= REG_FIELD(ISP1763_HC_ISO_PTD_SKIPMAP, 0, 15),
265	[HC_ISO_PTD_LASTPTD]	= REG_FIELD(ISP1763_HC_ISO_PTD_LASTPTD, 0, 15),
266	[HC_INT_PTD_DONEMAP]	= REG_FIELD(ISP1763_HC_INT_PTD_DONEMAP, 0, 15),
267	[HC_INT_PTD_SKIPMAP]	= REG_FIELD(ISP1763_HC_INT_PTD_SKIPMAP, 0, 15),
268	[HC_INT_PTD_LASTPTD]	= REG_FIELD(ISP1763_HC_INT_PTD_LASTPTD, 0, 15),
269	[HC_ATL_PTD_DONEMAP]	= REG_FIELD(ISP1763_HC_ATL_PTD_DONEMAP, 0, 15),
270	[HC_ATL_PTD_SKIPMAP]	= REG_FIELD(ISP1763_HC_ATL_PTD_SKIPMAP, 0, 15),
271	[HC_ATL_PTD_LASTPTD]	= REG_FIELD(ISP1763_HC_ATL_PTD_LASTPTD, 0, 15),
272	[PORT_OWNER]		= REG_FIELD(ISP1763_HC_PORTSC1, 13, 13),
273	[PORT_POWER]		= REG_FIELD(ISP1763_HC_PORTSC1, 12, 12),
274	[PORT_LSTATUS]		= REG_FIELD(ISP1763_HC_PORTSC1, 10, 11),
275	[PORT_RESET]		= REG_FIELD(ISP1763_HC_PORTSC1, 8, 8),
276	[PORT_SUSPEND]		= REG_FIELD(ISP1763_HC_PORTSC1, 7, 7),
277	[PORT_RESUME]		= REG_FIELD(ISP1763_HC_PORTSC1, 6, 6),
278	[PORT_PE]		= REG_FIELD(ISP1763_HC_PORTSC1, 2, 2),
279	[PORT_CSC]		= REG_FIELD(ISP1763_HC_PORTSC1, 1, 1),
280	[PORT_CONNECT]		= REG_FIELD(ISP1763_HC_PORTSC1, 0, 0),
281	[HW_DATA_BUS_WIDTH]	= REG_FIELD(ISP1763_HC_HW_MODE_CTRL, 4, 4),
282	[HW_DACK_POL_HIGH]	= REG_FIELD(ISP1763_HC_HW_MODE_CTRL, 6, 6),
283	[HW_DREQ_POL_HIGH]	= REG_FIELD(ISP1763_HC_HW_MODE_CTRL, 5, 5),
284	[HW_INTF_LOCK]		= REG_FIELD(ISP1763_HC_HW_MODE_CTRL, 3, 3),
285	[HW_INTR_HIGH_ACT]	= REG_FIELD(ISP1763_HC_HW_MODE_CTRL, 2, 2),
286	[HW_INTR_EDGE_TRIG]	= REG_FIELD(ISP1763_HC_HW_MODE_CTRL, 1, 1),
287	[HW_GLOBAL_INTR_EN]	= REG_FIELD(ISP1763_HC_HW_MODE_CTRL, 0, 0),
288	[SW_RESET_RESET_ATX]	= REG_FIELD(ISP1763_HC_RESET, 3, 3),
289	[SW_RESET_RESET_ALL]	= REG_FIELD(ISP1763_HC_RESET, 0, 0),
290	[HC_CHIP_ID_HIGH]	= REG_FIELD(ISP1763_HC_CHIP_ID, 0, 15),
291	[HC_CHIP_ID_LOW]	= REG_FIELD(ISP1763_HC_CHIP_REV, 8, 15),
292	[HC_CHIP_REV]		= REG_FIELD(ISP1763_HC_CHIP_REV, 0, 7),
293	[HC_SCRATCH]		= REG_FIELD(ISP1763_HC_SCRATCH, 0, 15),
294	[ISO_BUF_FILL]		= REG_FIELD(ISP1763_HC_BUFFER_STATUS, 2, 2),
295	[INT_BUF_FILL]		= REG_FIELD(ISP1763_HC_BUFFER_STATUS, 1, 1),
296	[ATL_BUF_FILL]		= REG_FIELD(ISP1763_HC_BUFFER_STATUS, 0, 0),
297	[MEM_START_ADDR]	= REG_FIELD(ISP1763_HC_MEMORY, 0, 15),
298	[HC_DATA]		= REG_FIELD(ISP1763_HC_DATA, 0, 15),
299	[HC_INTERRUPT]		= REG_FIELD(ISP1763_HC_INTERRUPT, 0, 10),
300	[HC_ATL_IRQ_ENABLE]	= REG_FIELD(ISP1763_HC_INTERRUPT_ENABLE, 8, 8),
301	[HC_INT_IRQ_ENABLE]	= REG_FIELD(ISP1763_HC_INTERRUPT_ENABLE, 7, 7),
302	[HC_ISO_IRQ_MASK_OR]	= REG_FIELD(ISP1763_HC_ISO_IRQ_MASK_OR, 0, 15),
303	[HC_INT_IRQ_MASK_OR]	= REG_FIELD(ISP1763_HC_INT_IRQ_MASK_OR, 0, 15),
304	[HC_ATL_IRQ_MASK_OR]	= REG_FIELD(ISP1763_HC_ATL_IRQ_MASK_OR, 0, 15),
305	[HC_ISO_IRQ_MASK_AND]	= REG_FIELD(ISP1763_HC_ISO_IRQ_MASK_AND, 0, 15),
306	[HC_INT_IRQ_MASK_AND]	= REG_FIELD(ISP1763_HC_INT_IRQ_MASK_AND, 0, 15),
307	[HC_ATL_IRQ_MASK_AND]	= REG_FIELD(ISP1763_HC_ATL_IRQ_MASK_AND, 0, 15),
308	[HW_HC_2_DIS]		= REG_FIELD(ISP1763_HC_OTG_CTRL_SET, 15, 15),
309	[HW_OTG_DISABLE]	= REG_FIELD(ISP1763_HC_OTG_CTRL_SET, 10, 10),
310	[HW_SW_SEL_HC_DC]	= REG_FIELD(ISP1763_HC_OTG_CTRL_SET, 7, 7),
311	[HW_VBUS_DRV]		= REG_FIELD(ISP1763_HC_OTG_CTRL_SET, 4, 4),
312	[HW_SEL_CP_EXT]		= REG_FIELD(ISP1763_HC_OTG_CTRL_SET, 3, 3),
313	[HW_DM_PULLDOWN]	= REG_FIELD(ISP1763_HC_OTG_CTRL_SET, 2, 2),
314	[HW_DP_PULLDOWN]	= REG_FIELD(ISP1763_HC_OTG_CTRL_SET, 1, 1),
315	[HW_DP_PULLUP]		= REG_FIELD(ISP1763_HC_OTG_CTRL_SET, 0, 0),
316	[HW_HC_2_DIS_CLEAR]	= REG_FIELD(ISP1763_HC_OTG_CTRL_CLEAR, 15, 15),
317	[HW_OTG_DISABLE_CLEAR]	= REG_FIELD(ISP1763_HC_OTG_CTRL_CLEAR, 10, 10),
318	[HW_SW_SEL_HC_DC_CLEAR]	= REG_FIELD(ISP1763_HC_OTG_CTRL_CLEAR, 7, 7),
319	[HW_VBUS_DRV_CLEAR]	= REG_FIELD(ISP1763_HC_OTG_CTRL_CLEAR, 4, 4),
320	[HW_SEL_CP_EXT_CLEAR]	= REG_FIELD(ISP1763_HC_OTG_CTRL_CLEAR, 3, 3),
321	[HW_DM_PULLDOWN_CLEAR]	= REG_FIELD(ISP1763_HC_OTG_CTRL_CLEAR, 2, 2),
322	[HW_DP_PULLDOWN_CLEAR]	= REG_FIELD(ISP1763_HC_OTG_CTRL_CLEAR, 1, 1),
323	[HW_DP_PULLUP_CLEAR]	= REG_FIELD(ISP1763_HC_OTG_CTRL_CLEAR, 0, 0),
324};
325
326static const struct regmap_range isp1763_hc_volatile_ranges[] = {
327	regmap_reg_range(ISP1763_HC_USBCMD, ISP1763_HC_ATL_PTD_LASTPTD),
328	regmap_reg_range(ISP1763_HC_BUFFER_STATUS, ISP1763_HC_DATA),
329	regmap_reg_range(ISP1763_HC_INTERRUPT, ISP1763_HC_OTG_CTRL_CLEAR),
330};
331
332static const struct regmap_access_table isp1763_hc_volatile_table = {
333	.yes_ranges	= isp1763_hc_volatile_ranges,
334	.n_yes_ranges	= ARRAY_SIZE(isp1763_hc_volatile_ranges),
335};
336
337static const struct regmap_config isp1763_hc_regmap_conf = {
338	.name = "isp1763-hc",
339	.reg_bits = 8,
340	.reg_stride = 2,
341	.val_bits = 16,
342	.fast_io = true,
343	.max_register = ISP1763_HC_OTG_CTRL_CLEAR,
344	.volatile_table = &isp1763_hc_volatile_table,
345};
346
347static const struct regmap_range isp176x_dc_volatile_ranges[] = {
348	regmap_reg_range(ISP176x_DC_EPMAXPKTSZ, ISP176x_DC_EPTYPE),
349	regmap_reg_range(ISP176x_DC_BUFLEN, ISP176x_DC_EPINDEX),
350};
351
352static const struct regmap_access_table isp176x_dc_volatile_table = {
353	.yes_ranges	= isp176x_dc_volatile_ranges,
354	.n_yes_ranges	= ARRAY_SIZE(isp176x_dc_volatile_ranges),
355};
356
357static const struct regmap_config isp1761_dc_regmap_conf = {
358	.name = "isp1761-dc",
359	.reg_bits = 16,
360	.reg_stride = 4,
361	.val_bits = 32,
362	.fast_io = true,
363	.max_register = ISP176x_DC_TESTMODE,
364	.volatile_table = &isp176x_dc_volatile_table,
365};
366
367static const struct reg_field isp1761_dc_reg_fields[] = {
368	[DC_DEVEN]		= REG_FIELD(ISP176x_DC_ADDRESS, 7, 7),
369	[DC_DEVADDR]		= REG_FIELD(ISP176x_DC_ADDRESS, 0, 6),
370	[DC_VBUSSTAT]		= REG_FIELD(ISP176x_DC_MODE, 8, 8),
371	[DC_SFRESET]		= REG_FIELD(ISP176x_DC_MODE, 4, 4),
372	[DC_GLINTENA]		= REG_FIELD(ISP176x_DC_MODE, 3, 3),
373	[DC_CDBGMOD_ACK]	= REG_FIELD(ISP176x_DC_INTCONF, 6, 6),
374	[DC_DDBGMODIN_ACK]	= REG_FIELD(ISP176x_DC_INTCONF, 4, 4),
375	[DC_DDBGMODOUT_ACK]	= REG_FIELD(ISP176x_DC_INTCONF, 2, 2),
376	[DC_INTPOL]		= REG_FIELD(ISP176x_DC_INTCONF, 0, 0),
377	[DC_IEPRXTX_7]		= REG_FIELD(ISP176x_DC_INTENABLE, 25, 25),
378	[DC_IEPRXTX_6]		= REG_FIELD(ISP176x_DC_INTENABLE, 23, 23),
379	[DC_IEPRXTX_5]		= REG_FIELD(ISP176x_DC_INTENABLE, 21, 21),
380	[DC_IEPRXTX_4]		= REG_FIELD(ISP176x_DC_INTENABLE, 19, 19),
381	[DC_IEPRXTX_3]		= REG_FIELD(ISP176x_DC_INTENABLE, 17, 17),
382	[DC_IEPRXTX_2]		= REG_FIELD(ISP176x_DC_INTENABLE, 15, 15),
383	[DC_IEPRXTX_1]		= REG_FIELD(ISP176x_DC_INTENABLE, 13, 13),
384	[DC_IEPRXTX_0]		= REG_FIELD(ISP176x_DC_INTENABLE, 11, 11),
385	[DC_IEP0SETUP]		= REG_FIELD(ISP176x_DC_INTENABLE, 8, 8),
386	[DC_IEVBUS]		= REG_FIELD(ISP176x_DC_INTENABLE, 7, 7),
387	[DC_IEHS_STA]		= REG_FIELD(ISP176x_DC_INTENABLE, 5, 5),
388	[DC_IERESM]		= REG_FIELD(ISP176x_DC_INTENABLE, 4, 4),
389	[DC_IESUSP]		= REG_FIELD(ISP176x_DC_INTENABLE, 3, 3),
390	[DC_IEBRST]		= REG_FIELD(ISP176x_DC_INTENABLE, 0, 0),
391	[DC_EP0SETUP]		= REG_FIELD(ISP176x_DC_EPINDEX, 5, 5),
392	[DC_ENDPIDX]		= REG_FIELD(ISP176x_DC_EPINDEX, 1, 4),
393	[DC_EPDIR]		= REG_FIELD(ISP176x_DC_EPINDEX, 0, 0),
394	[DC_CLBUF]		= REG_FIELD(ISP176x_DC_CTRLFUNC, 4, 4),
395	[DC_VENDP]		= REG_FIELD(ISP176x_DC_CTRLFUNC, 3, 3),
396	[DC_DSEN]		= REG_FIELD(ISP176x_DC_CTRLFUNC, 2, 2),
397	[DC_STATUS]		= REG_FIELD(ISP176x_DC_CTRLFUNC, 1, 1),
398	[DC_STALL]		= REG_FIELD(ISP176x_DC_CTRLFUNC, 0, 0),
399	[DC_BUFLEN]		= REG_FIELD(ISP176x_DC_BUFLEN, 0, 15),
400	[DC_FFOSZ]		= REG_FIELD(ISP176x_DC_EPMAXPKTSZ, 0, 10),
401	[DC_EPENABLE]		= REG_FIELD(ISP176x_DC_EPTYPE, 3, 3),
402	[DC_ENDPTYP]		= REG_FIELD(ISP176x_DC_EPTYPE, 0, 1),
403	[DC_UFRAMENUM]		= REG_FIELD(ISP176x_DC_FRAMENUM, 11, 13),
404	[DC_FRAMENUM]		= REG_FIELD(ISP176x_DC_FRAMENUM, 0, 10),
405	[DC_CHIP_ID_HIGH]	= REG_FIELD(ISP176x_DC_CHIPID, 16, 31),
406	[DC_CHIP_ID_LOW]	= REG_FIELD(ISP176x_DC_CHIPID, 0, 15),
407	[DC_SCRATCH]		= REG_FIELD(ISP176x_DC_SCRATCH, 0, 15),
408};
409
410static const struct regmap_range isp1763_dc_volatile_ranges[] = {
411	regmap_reg_range(ISP1763_DC_EPMAXPKTSZ, ISP1763_DC_EPTYPE),
412	regmap_reg_range(ISP1763_DC_BUFLEN, ISP1763_DC_EPINDEX),
413};
414
415static const struct regmap_access_table isp1763_dc_volatile_table = {
416	.yes_ranges	= isp1763_dc_volatile_ranges,
417	.n_yes_ranges	= ARRAY_SIZE(isp1763_dc_volatile_ranges),
418};
419
420static const struct reg_field isp1763_dc_reg_fields[] = {
421	[DC_DEVEN]		= REG_FIELD(ISP1763_DC_ADDRESS, 7, 7),
422	[DC_DEVADDR]		= REG_FIELD(ISP1763_DC_ADDRESS, 0, 6),
423	[DC_VBUSSTAT]		= REG_FIELD(ISP1763_DC_MODE, 8, 8),
424	[DC_SFRESET]		= REG_FIELD(ISP1763_DC_MODE, 4, 4),
425	[DC_GLINTENA]		= REG_FIELD(ISP1763_DC_MODE, 3, 3),
426	[DC_CDBGMOD_ACK]	= REG_FIELD(ISP1763_DC_INTCONF, 6, 6),
427	[DC_DDBGMODIN_ACK]	= REG_FIELD(ISP1763_DC_INTCONF, 4, 4),
428	[DC_DDBGMODOUT_ACK]	= REG_FIELD(ISP1763_DC_INTCONF, 2, 2),
429	[DC_INTPOL]		= REG_FIELD(ISP1763_DC_INTCONF, 0, 0),
430	[DC_IEPRXTX_7]		= REG_FIELD(ISP1763_DC_INTENABLE, 25, 25),
431	[DC_IEPRXTX_6]		= REG_FIELD(ISP1763_DC_INTENABLE, 23, 23),
432	[DC_IEPRXTX_5]		= REG_FIELD(ISP1763_DC_INTENABLE, 21, 21),
433	[DC_IEPRXTX_4]		= REG_FIELD(ISP1763_DC_INTENABLE, 19, 19),
434	[DC_IEPRXTX_3]		= REG_FIELD(ISP1763_DC_INTENABLE, 17, 17),
435	[DC_IEPRXTX_2]		= REG_FIELD(ISP1763_DC_INTENABLE, 15, 15),
436	[DC_IEPRXTX_1]		= REG_FIELD(ISP1763_DC_INTENABLE, 13, 13),
437	[DC_IEPRXTX_0]		= REG_FIELD(ISP1763_DC_INTENABLE, 11, 11),
438	[DC_IEP0SETUP]		= REG_FIELD(ISP1763_DC_INTENABLE, 8, 8),
439	[DC_IEVBUS]		= REG_FIELD(ISP1763_DC_INTENABLE, 7, 7),
440	[DC_IEHS_STA]		= REG_FIELD(ISP1763_DC_INTENABLE, 5, 5),
441	[DC_IERESM]		= REG_FIELD(ISP1763_DC_INTENABLE, 4, 4),
442	[DC_IESUSP]		= REG_FIELD(ISP1763_DC_INTENABLE, 3, 3),
443	[DC_IEBRST]		= REG_FIELD(ISP1763_DC_INTENABLE, 0, 0),
444	[DC_EP0SETUP]		= REG_FIELD(ISP1763_DC_EPINDEX, 5, 5),
445	[DC_ENDPIDX]		= REG_FIELD(ISP1763_DC_EPINDEX, 1, 4),
446	[DC_EPDIR]		= REG_FIELD(ISP1763_DC_EPINDEX, 0, 0),
447	[DC_CLBUF]		= REG_FIELD(ISP1763_DC_CTRLFUNC, 4, 4),
448	[DC_VENDP]		= REG_FIELD(ISP1763_DC_CTRLFUNC, 3, 3),
449	[DC_DSEN]		= REG_FIELD(ISP1763_DC_CTRLFUNC, 2, 2),
450	[DC_STATUS]		= REG_FIELD(ISP1763_DC_CTRLFUNC, 1, 1),
451	[DC_STALL]		= REG_FIELD(ISP1763_DC_CTRLFUNC, 0, 0),
452	[DC_BUFLEN]		= REG_FIELD(ISP1763_DC_BUFLEN, 0, 15),
453	[DC_FFOSZ]		= REG_FIELD(ISP1763_DC_EPMAXPKTSZ, 0, 10),
454	[DC_EPENABLE]		= REG_FIELD(ISP1763_DC_EPTYPE, 3, 3),
455	[DC_ENDPTYP]		= REG_FIELD(ISP1763_DC_EPTYPE, 0, 1),
456	[DC_UFRAMENUM]		= REG_FIELD(ISP1763_DC_FRAMENUM, 11, 13),
457	[DC_FRAMENUM]		= REG_FIELD(ISP1763_DC_FRAMENUM, 0, 10),
458	[DC_CHIP_ID_HIGH]	= REG_FIELD(ISP1763_DC_CHIPID_HIGH, 0, 15),
459	[DC_CHIP_ID_LOW]	= REG_FIELD(ISP1763_DC_CHIPID_LOW, 0, 15),
460	[DC_SCRATCH]		= REG_FIELD(ISP1763_DC_SCRATCH, 0, 15),
461};
462
463static const struct regmap_config isp1763_dc_regmap_conf = {
464	.name = "isp1763-dc",
465	.reg_bits = 8,
466	.reg_stride = 2,
467	.val_bits = 16,
468	.fast_io = true,
469	.max_register = ISP1763_DC_TESTMODE,
470	.volatile_table = &isp1763_dc_volatile_table,
471};
472
473int isp1760_register(struct resource *mem, int irq, unsigned long irqflags,
474		     struct device *dev, unsigned int devflags)
475{
476	const struct regmap_config *hc_regmap;
477	const struct reg_field *hc_reg_fields;
478	const struct regmap_config *dc_regmap;
479	const struct reg_field *dc_reg_fields;
480	struct isp1760_device *isp;
481	struct isp1760_hcd *hcd;
482	struct isp1760_udc *udc;
483	struct regmap_field *f;
484	bool udc_enabled;
485	int ret;
486	int i;
487
488	/*
489	 * If neither the HCD not the UDC is enabled return an error, as no
490	 * device would be registered.
491	 */
492	udc_enabled = ((devflags & ISP1760_FLAG_ISP1763) ||
493		       (devflags & ISP1760_FLAG_ISP1761));
494
495	if ((!IS_ENABLED(CONFIG_USB_ISP1760_HCD) || usb_disabled()) &&
496	    (!IS_ENABLED(CONFIG_USB_ISP1761_UDC) || !udc_enabled))
497		return -ENODEV;
498
 
 
 
499	isp = devm_kzalloc(dev, sizeof(*isp), GFP_KERNEL);
500	if (!isp)
501		return -ENOMEM;
502
503	isp->dev = dev;
504	isp->devflags = devflags;
505	hcd = &isp->hcd;
506	udc = &isp->udc;
507
508	hcd->is_isp1763 = !!(devflags & ISP1760_FLAG_ISP1763);
509	udc->is_isp1763 = !!(devflags & ISP1760_FLAG_ISP1763);
510
511	if (!hcd->is_isp1763 && (devflags & ISP1760_FLAG_BUS_WIDTH_8)) {
512		dev_err(dev, "isp1760/61 do not support data width 8\n");
513		return -EINVAL;
514	}
515
516	if (hcd->is_isp1763) {
517		hc_regmap = &isp1763_hc_regmap_conf;
518		hc_reg_fields = &isp1763_hc_reg_fields[0];
519		dc_regmap = &isp1763_dc_regmap_conf;
520		dc_reg_fields = &isp1763_dc_reg_fields[0];
521	} else {
522		hc_regmap = &isp1760_hc_regmap_conf;
523		hc_reg_fields = &isp1760_hc_reg_fields[0];
524		dc_regmap = &isp1761_dc_regmap_conf;
525		dc_reg_fields = &isp1761_dc_reg_fields[0];
526	}
527
528	isp->rst_gpio = devm_gpiod_get_optional(dev, NULL, GPIOD_OUT_HIGH);
529	if (IS_ERR(isp->rst_gpio))
530		return PTR_ERR(isp->rst_gpio);
531
532	hcd->base = devm_ioremap_resource(dev, mem);
533	if (IS_ERR(hcd->base))
534		return PTR_ERR(hcd->base);
535
536	hcd->regs = devm_regmap_init_mmio(dev, hcd->base, hc_regmap);
537	if (IS_ERR(hcd->regs))
538		return PTR_ERR(hcd->regs);
539
540	for (i = 0; i < HC_FIELD_MAX; i++) {
541		f = devm_regmap_field_alloc(dev, hcd->regs, hc_reg_fields[i]);
542		if (IS_ERR(f))
543			return PTR_ERR(f);
544
545		hcd->fields[i] = f;
546	}
547
548	udc->regs = devm_regmap_init_mmio(dev, hcd->base, dc_regmap);
549	if (IS_ERR(udc->regs))
550		return PTR_ERR(udc->regs);
551
552	for (i = 0; i < DC_FIELD_MAX; i++) {
553		f = devm_regmap_field_alloc(dev, udc->regs, dc_reg_fields[i]);
554		if (IS_ERR(f))
555			return PTR_ERR(f);
556
557		udc->fields[i] = f;
558	}
559
560	if (hcd->is_isp1763)
561		hcd->memory_layout = &isp1763_memory_conf;
562	else
563		hcd->memory_layout = &isp176x_memory_conf;
564
565	ret = isp1760_init_core(isp);
566	if (ret < 0)
567		return ret;
568
569	if (IS_ENABLED(CONFIG_USB_ISP1760_HCD) && !usb_disabled()) {
570		ret = isp1760_hcd_register(hcd, mem, irq,
571					   irqflags | IRQF_SHARED, dev);
572		if (ret < 0)
573			return ret;
574	}
575
576	if (IS_ENABLED(CONFIG_USB_ISP1761_UDC) && udc_enabled) {
577		ret = isp1760_udc_register(isp, irq, irqflags);
578		if (ret < 0) {
579			isp1760_hcd_unregister(hcd);
580			return ret;
581		}
582	}
583
584	dev_set_drvdata(dev, isp);
585
586	return 0;
587}
588
589void isp1760_unregister(struct device *dev)
590{
591	struct isp1760_device *isp = dev_get_drvdata(dev);
592
593	isp1760_udc_unregister(isp);
594	isp1760_hcd_unregister(&isp->hcd);
595}
596
597MODULE_DESCRIPTION("Driver for the ISP1760 USB-controller from NXP");
598MODULE_AUTHOR("Sebastian Siewior <bigeasy@linuxtronix.de>");
599MODULE_LICENSE("GPL v2");