xref: /openbmc/linux/arch/arm/include/asm/hardware/scoop.h (revision d2912cb1)
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  *  Definitions for the SCOOP interface found on various Sharp PDAs
4  *
5  *  Copyright (c) 2004 Richard Purdie
6  */
7 
8 #define SCOOP_MCR  0x00
9 #define SCOOP_CDR  0x04
10 #define SCOOP_CSR  0x08
11 #define SCOOP_CPR  0x0C
12 #define SCOOP_CCR  0x10
13 #define SCOOP_IRR  0x14
14 #define SCOOP_IRM  0x14
15 #define SCOOP_IMR  0x18
16 #define SCOOP_ISR  0x1C
17 #define SCOOP_GPCR 0x20
18 #define SCOOP_GPWR 0x24
19 #define SCOOP_GPRR 0x28
20 
21 #define SCOOP_CPR_OUT	(1 << 7)
22 #define SCOOP_CPR_SD_3V	(1 << 2)
23 #define SCOOP_CPR_CF_XV	(1 << 1)
24 #define SCOOP_CPR_CF_3V	(1 << 0)
25 
26 #define SCOOP_GPCR_PA22	(1 << 12)
27 #define SCOOP_GPCR_PA21	(1 << 11)
28 #define SCOOP_GPCR_PA20	(1 << 10)
29 #define SCOOP_GPCR_PA19	(1 << 9)
30 #define SCOOP_GPCR_PA18	(1 << 8)
31 #define SCOOP_GPCR_PA17	(1 << 7)
32 #define SCOOP_GPCR_PA16	(1 << 6)
33 #define SCOOP_GPCR_PA15	(1 << 5)
34 #define SCOOP_GPCR_PA14	(1 << 4)
35 #define SCOOP_GPCR_PA13	(1 << 3)
36 #define SCOOP_GPCR_PA12	(1 << 2)
37 #define SCOOP_GPCR_PA11	(1 << 1)
38 
39 struct scoop_config {
40 	unsigned short io_out;
41 	unsigned short io_dir;
42 	unsigned short suspend_clr;
43 	unsigned short suspend_set;
44 	int gpio_base;
45 };
46 
47 /* Structure for linking scoop devices to PCMCIA sockets */
48 struct scoop_pcmcia_dev {
49 	struct device *dev;     /* Pointer to this socket's scoop device */
50 	int	irq;                /* irq for socket */
51 	int cd_irq;
52 	const char *cd_irq_str;
53 	unsigned char keep_vs;
54 	unsigned char keep_rd;
55 };
56 
57 struct scoop_pcmcia_config {
58 	struct scoop_pcmcia_dev *devs;
59 	int num_devs;
60 	void (*power_ctrl)(struct device *scoop, unsigned short cpr, int nr);
61 };
62 
63 extern struct scoop_pcmcia_config *platform_scoop_config;
64 
65 void reset_scoop(struct device *dev);
66 unsigned short read_scoop_reg(struct device *dev, unsigned short reg);
67 void write_scoop_reg(struct device *dev, unsigned short reg, unsigned short data);
68