xref: /linux/arch/arm/include/asm/hardware/scoop.h (revision 75bf465f0bc33e9b776a46d6a1b9b990f5fb7c37)

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 *  Definitions for the SCOOP interface found on various Sharp PDAs
 *
 *  Copyright (c) 2004 Richard Purdie
 */

#define SCOOP_MCR  0x00
#define SCOOP_CDR  0x04
#define SCOOP_CSR  0x08
#define SCOOP_CPR  0x0C
#define SCOOP_CCR  0x10
#define SCOOP_IRR  0x14
#define SCOOP_IRM  0x14
#define SCOOP_IMR  0x18
#define SCOOP_ISR  0x1C
#define SCOOP_GPCR 0x20
#define SCOOP_GPWR 0x24
#define SCOOP_GPRR 0x28

#define SCOOP_CPR_OUT	(1 << 7)
#define SCOOP_CPR_SD_3V	(1 << 2)
#define SCOOP_CPR_CF_XV	(1 << 1)
#define SCOOP_CPR_CF_3V	(1 << 0)

#define SCOOP_GPCR_PA22	(1 << 12)
#define SCOOP_GPCR_PA21	(1 << 11)
#define SCOOP_GPCR_PA20	(1 << 10)
#define SCOOP_GPCR_PA19	(1 << 9)
#define SCOOP_GPCR_PA18	(1 << 8)
#define SCOOP_GPCR_PA17	(1 << 7)
#define SCOOP_GPCR_PA16	(1 << 6)
#define SCOOP_GPCR_PA15	(1 << 5)
#define SCOOP_GPCR_PA14	(1 << 4)
#define SCOOP_GPCR_PA13	(1 << 3)
#define SCOOP_GPCR_PA12	(1 << 2)
#define SCOOP_GPCR_PA11	(1 << 1)

struct scoop_config {
	unsigned short io_out;
	unsigned short io_dir;
	unsigned short suspend_clr;
	unsigned short suspend_set;
	int gpio_base;
};

/* Structure for linking scoop devices to PCMCIA sockets */
struct scoop_pcmcia_dev {
	struct device *dev;     /* Pointer to this socket's scoop device */
	int	irq;                /* irq for socket */
	int cd_irq;
	const char *cd_irq_str;
	unsigned char keep_vs;
	unsigned char keep_rd;
};

struct scoop_pcmcia_config {
	struct scoop_pcmcia_dev *devs;
	int num_devs;
	void (*power_ctrl)(struct device *scoop, unsigned short cpr, int nr);
};

extern struct scoop_pcmcia_config *platform_scoop_config;

void reset_scoop(struct device *dev);
unsigned short read_scoop_reg(struct device *dev, unsigned short reg);
void write_scoop_reg(struct device *dev, unsigned short reg, unsigned short data);