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 #ifndef _ISP1760_CORE_H_
14 #define _ISP1760_CORE_H_
15
16 #include <linux/ioport.h>
17
18 #include "isp1760-hcd.h"
19 #include "isp1760-udc.h"
20
21 struct device;
22 struct gpio_desc;
23
24 /*
25 * Device flags that can vary from board to board. All of these
26 * indicate the most "atypical" case, so that a devflags of 0 is
27 * a sane default configuration.
28 */
29 #define ISP1760_FLAG_BUS_WIDTH_16 0x00000002 /* 16-bit data bus width */
30 #define ISP1760_FLAG_OTG_EN 0x00000004 /* Port 1 supports OTG */
31 #define ISP1760_FLAG_ANALOG_OC 0x00000008 /* Analog overcurrent */
32 #define ISP1760_FLAG_DACK_POL_HIGH 0x00000010 /* DACK active high */
33 #define ISP1760_FLAG_DREQ_POL_HIGH 0x00000020 /* DREQ active high */
34 #define ISP1760_FLAG_ISP1761 0x00000040 /* Chip is ISP1761 */
35 #define ISP1760_FLAG_INTR_POL_HIGH 0x00000080 /* Interrupt polarity active high */
36 #define ISP1760_FLAG_INTR_EDGE_TRIG 0x00000100 /* Interrupt edge triggered */
37
38 struct isp1760_device {
39 struct device *dev;
40
41 void __iomem *regs;
42 unsigned int devflags;
43 struct gpio_desc *rst_gpio;
44
45 struct isp1760_hcd hcd;
46 struct isp1760_udc udc;
47 };
48
49 int isp1760_register(struct resource *mem, int irq, unsigned long irqflags,
50 struct device *dev, unsigned int devflags);
51 void isp1760_unregister(struct device *dev);
52
53 void isp1760_set_pullup(struct isp1760_device *isp, bool enable);
54
isp1760_read32(void __iomem * base,u32 reg)55 static inline u32 isp1760_read32(void __iomem *base, u32 reg)
56 {
57 return readl(base + reg);
58 }
59
isp1760_write32(void __iomem * base,u32 reg,u32 val)60 static inline void isp1760_write32(void __iomem *base, u32 reg, u32 val)
61 {
62 writel(val, base + reg);
63 }
64
65 #endif
66