xref: /openbmc/linux/arch/arm/include/asm/hardware/scoop.h (revision 275876e2)
1 /*
2  *  Definitions for the SCOOP interface found on various Sharp PDAs
3  *
4  *  Copyright (c) 2004 Richard Purdie
5  *
6  *  This program is free software; you can redistribute it and/or modify
7  *  it under the terms of the GNU General Public License version 2 as
8  *  published by the Free Software Foundation.
9  *
10  */
11 
12 #define SCOOP_MCR  0x00
13 #define SCOOP_CDR  0x04
14 #define SCOOP_CSR  0x08
15 #define SCOOP_CPR  0x0C
16 #define SCOOP_CCR  0x10
17 #define SCOOP_IRR  0x14
18 #define SCOOP_IRM  0x14
19 #define SCOOP_IMR  0x18
20 #define SCOOP_ISR  0x1C
21 #define SCOOP_GPCR 0x20
22 #define SCOOP_GPWR 0x24
23 #define SCOOP_GPRR 0x28
24 
25 #define SCOOP_CPR_OUT	(1 << 7)
26 #define SCOOP_CPR_SD_3V	(1 << 2)
27 #define SCOOP_CPR_CF_XV	(1 << 1)
28 #define SCOOP_CPR_CF_3V	(1 << 0)
29 
30 #define SCOOP_GPCR_PA22	(1 << 12)
31 #define SCOOP_GPCR_PA21	(1 << 11)
32 #define SCOOP_GPCR_PA20	(1 << 10)
33 #define SCOOP_GPCR_PA19	(1 << 9)
34 #define SCOOP_GPCR_PA18	(1 << 8)
35 #define SCOOP_GPCR_PA17	(1 << 7)
36 #define SCOOP_GPCR_PA16	(1 << 6)
37 #define SCOOP_GPCR_PA15	(1 << 5)
38 #define SCOOP_GPCR_PA14	(1 << 4)
39 #define SCOOP_GPCR_PA13	(1 << 3)
40 #define SCOOP_GPCR_PA12	(1 << 2)
41 #define SCOOP_GPCR_PA11	(1 << 1)
42 
43 struct scoop_config {
44 	unsigned short io_out;
45 	unsigned short io_dir;
46 	unsigned short suspend_clr;
47 	unsigned short suspend_set;
48 	int gpio_base;
49 };
50 
51 /* Structure for linking scoop devices to PCMCIA sockets */
52 struct scoop_pcmcia_dev {
53 	struct device *dev;     /* Pointer to this socket's scoop device */
54 	int	irq;                /* irq for socket */
55 	int cd_irq;
56 	const char *cd_irq_str;
57 	unsigned char keep_vs;
58 	unsigned char keep_rd;
59 };
60 
61 struct scoop_pcmcia_config {
62 	struct scoop_pcmcia_dev *devs;
63 	int num_devs;
64 	void (*power_ctrl)(struct device *scoop, unsigned short cpr, int nr);
65 };
66 
67 extern struct scoop_pcmcia_config *platform_scoop_config;
68 
69 void reset_scoop(struct device *dev);
70 unsigned short read_scoop_reg(struct device *dev, unsigned short reg);
71 void write_scoop_reg(struct device *dev, unsigned short reg, unsigned short data);
72