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https://github.com/AsahiLinux/u-boot
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97 lines
2.5 KiB
C
97 lines
2.5 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Driver for the NXP ISP1760 chip
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*
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* Copyright 2021 Linaro, Rui Miguel Silva
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* Copyright 2014 Laurent Pinchart
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* Copyright 2007 Sebastian Siewior
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*
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* Contacts:
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* Sebastian Siewior <bigeasy@linutronix.de>
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* Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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* Rui Miguel Silva <rui.silva@linaro.org>
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*/
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#ifndef _ISP1760_CORE_H_
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#define _ISP1760_CORE_H_
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#include <linux/compat.h>
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#include <linux/ioport.h>
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#include <regmap.h>
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#include "isp1760-hcd.h"
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struct device;
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struct gpio_desc;
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/*
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* Device flags that can vary from board to board. All of these
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* indicate the most "atypical" case, so that a devflags of 0 is
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* a sane default configuration.
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*/
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#define ISP1760_FLAG_BUS_WIDTH_16 0x00000002 /* 16-bit data bus width */
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#define ISP1760_FLAG_PERIPHERAL_EN 0x00000004 /* Port 1 supports Peripheral mode*/
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#define ISP1760_FLAG_ANALOG_OC 0x00000008 /* Analog overcurrent */
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#define ISP1760_FLAG_DACK_POL_HIGH 0x00000010 /* DACK active high */
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#define ISP1760_FLAG_DREQ_POL_HIGH 0x00000020 /* DREQ active high */
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#define ISP1760_FLAG_ISP1761 0x00000040 /* Chip is ISP1761 */
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#define ISP1760_FLAG_INTR_POL_HIGH 0x00000080 /* Interrupt polarity active high */
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#define ISP1760_FLAG_INTR_EDGE_TRIG 0x00000100 /* Interrupt edge triggered */
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#define ISP1760_FLAG_ISP1763 0x00000200 /* Chip is ISP1763 */
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#define ISP1760_FLAG_BUS_WIDTH_8 0x00000400 /* 8-bit data bus width */
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struct isp1760_device {
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struct udevice *dev;
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unsigned int devflags;
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struct gpio_desc *rst_gpio;
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struct isp1760_hcd hcd;
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};
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int isp1760_register(struct isp1760_device *isp, struct resource *mem, int irq,
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unsigned long irqflags);
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void isp1760_unregister(struct isp1760_device *isp);
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void isp1760_set_pullup(struct isp1760_device *isp, bool enable);
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static inline u32 isp1760_field_read(struct regmap_field **fields, u32 field)
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{
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unsigned int val;
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regmap_field_read(fields[field], &val);
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return val;
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}
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static inline void isp1760_field_write(struct regmap_field **fields, u32 field,
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u32 val)
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{
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regmap_field_write(fields[field], val);
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}
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static inline void isp1760_field_set(struct regmap_field **fields, u32 field)
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{
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isp1760_field_write(fields, field, 0xFFFFFFFF);
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}
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static inline void isp1760_field_clear(struct regmap_field **fields, u32 field)
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{
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isp1760_field_write(fields, field, 0);
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}
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static inline u32 isp1760_reg_read(struct regmap *regs, u32 reg)
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{
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unsigned int val;
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regmap_read(regs, reg, &val);
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return val;
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}
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static inline void isp1760_reg_write(struct regmap *regs, u32 reg, u32 val)
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{
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regmap_write(regs, reg, val);
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}
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#endif
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