xref: /openbmc/linux/drivers/pcmcia/yenta_socket.h (revision 404e077a)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __YENTA_H
3 #define __YENTA_H
4 
5 #include <asm/io.h>
6 
7 #define CB_SOCKET_EVENT		0x00
8 #define    CB_CSTSEVENT		0x00000001	/* Card status event */
9 #define    CB_CD1EVENT		0x00000002	/* Card detect 1 change event */
10 #define    CB_CD2EVENT		0x00000004	/* Card detect 2 change event */
11 #define    CB_PWREVENT		0x00000008	/* PWRCYCLE change event */
12 
13 #define CB_SOCKET_MASK		0x04
14 #define    CB_CSTSMASK		0x00000001	/* Card status mask */
15 #define    CB_CDMASK		0x00000006	/* Card detect 1&2 mask */
16 #define    CB_PWRMASK		0x00000008	/* PWRCYCLE change mask */
17 
18 #define CB_SOCKET_STATE		0x08
19 #define    CB_CARDSTS		0x00000001	/* CSTSCHG status */
20 #define    CB_CDETECT1		0x00000002	/* Card detect status 1 */
21 #define    CB_CDETECT2		0x00000004	/* Card detect status 2 */
22 #define    CB_PWRCYCLE		0x00000008	/* Socket powered */
23 #define    CB_16BITCARD		0x00000010	/* 16-bit card detected */
24 #define    CB_CBCARD		0x00000020	/* CardBus card detected */
25 #define    CB_IREQCINT		0x00000040	/* READY(xIRQ)/xCINT high */
26 #define    CB_NOTACARD		0x00000080	/* Unrecognizable PC card detected */
27 #define    CB_DATALOST		0x00000100	/* Potential data loss due to card removal */
28 #define    CB_BADVCCREQ		0x00000200	/* Invalid Vcc request by host software */
29 #define    CB_5VCARD		0x00000400	/* Card Vcc at 5.0 volts? */
30 #define    CB_3VCARD		0x00000800	/* Card Vcc at 3.3 volts? */
31 #define    CB_XVCARD		0x00001000	/* Card Vcc at X.X volts? */
32 #define    CB_YVCARD		0x00002000	/* Card Vcc at Y.Y volts? */
33 #define    CB_5VSOCKET		0x10000000	/* Socket Vcc at 5.0 volts? */
34 #define    CB_3VSOCKET		0x20000000	/* Socket Vcc at 3.3 volts? */
35 #define    CB_XVSOCKET		0x40000000	/* Socket Vcc at X.X volts? */
36 #define    CB_YVSOCKET		0x80000000	/* Socket Vcc at Y.Y volts? */
37 
38 #define CB_SOCKET_FORCE		0x0C
39 #define    CB_FCARDSTS		0x00000001	/* Force CSTSCHG */
40 #define    CB_FCDETECT1		0x00000002	/* Force CD1EVENT */
41 #define    CB_FCDETECT2		0x00000004	/* Force CD2EVENT */
42 #define    CB_FPWRCYCLE		0x00000008	/* Force PWREVENT */
43 #define    CB_F16BITCARD	0x00000010	/* Force 16-bit PCMCIA card */
44 #define    CB_FCBCARD		0x00000020	/* Force CardBus line */
45 #define    CB_FNOTACARD		0x00000080	/* Force NOTACARD */
46 #define    CB_FDATALOST		0x00000100	/* Force data lost */
47 #define    CB_FBADVCCREQ	0x00000200	/* Force bad Vcc request */
48 #define    CB_F5VCARD		0x00000400	/* Force 5.0 volt card */
49 #define    CB_F3VCARD		0x00000800	/* Force 3.3 volt card */
50 #define    CB_FXVCARD		0x00001000	/* Force X.X volt card */
51 #define    CB_FYVCARD		0x00002000	/* Force Y.Y volt card */
52 #define    CB_CVSTEST		0x00004000	/* Card VS test */
53 
54 #define CB_SOCKET_CONTROL	0x10
55 #define  CB_SC_VPP_MASK		0x00000007
56 #define   CB_SC_VPP_OFF		0x00000000
57 #define   CB_SC_VPP_12V		0x00000001
58 #define   CB_SC_VPP_5V		0x00000002
59 #define   CB_SC_VPP_3V		0x00000003
60 #define   CB_SC_VPP_XV		0x00000004
61 #define   CB_SC_VPP_YV		0x00000005
62 #define  CB_SC_VCC_MASK		0x00000070
63 #define   CB_SC_VCC_OFF		0x00000000
64 #define   CB_SC_VCC_5V		0x00000020
65 #define   CB_SC_VCC_3V		0x00000030
66 #define   CB_SC_VCC_XV		0x00000040
67 #define   CB_SC_VCC_YV		0x00000050
68 #define  CB_SC_CCLK_STOP	0x00000080
69 
70 #define CB_SOCKET_POWER		0x20
71 #define    CB_SKTACCES		0x02000000	/* A PC card access has occurred (clear on read) */
72 #define    CB_SKTMODE		0x01000000	/* Clock frequency has changed (clear on read) */
73 #define    CB_CLKCTRLEN		0x00010000	/* Clock control enabled (RW) */
74 #define    CB_CLKCTRL		0x00000001	/* Stop(0) or slow(1) CB clock (RW) */
75 
76 /*
77  * Cardbus configuration space
78  */
79 #define CB_BRIDGE_BASE(m)	(0x1c + 8*(m))
80 #define CB_BRIDGE_LIMIT(m)	(0x20 + 8*(m))
81 #define CB_BRIDGE_CONTROL	0x3e
82 #define   CB_BRIDGE_CPERREN	0x00000001
83 #define   CB_BRIDGE_CSERREN	0x00000002
84 #define   CB_BRIDGE_ISAEN	0x00000004
85 #define   CB_BRIDGE_VGAEN	0x00000008
86 #define   CB_BRIDGE_MABTMODE	0x00000020
87 #define   CB_BRIDGE_CRST	0x00000040
88 #define   CB_BRIDGE_INTR	0x00000080
89 #define   CB_BRIDGE_PREFETCH0	0x00000100
90 #define   CB_BRIDGE_PREFETCH1	0x00000200
91 #define   CB_BRIDGE_POSTEN	0x00000400
92 #define CB_LEGACY_MODE_BASE	0x44
93 
94 /*
95  * ExCA area extensions in Yenta
96  */
97 #define CB_MEM_PAGE(map)	(0x40 + (map))
98 
99 
100 /* control how 16bit cards are powered */
101 #define YENTA_16BIT_POWER_EXCA	0x00000001
102 #define YENTA_16BIT_POWER_DF	0x00000002
103 
104 
105 struct yenta_socket;
106 
107 struct cardbus_type {
108 	int	(*override)(struct yenta_socket *);
109 	void	(*save_state)(struct yenta_socket *);
110 	void	(*restore_state)(struct yenta_socket *);
111 	int	(*sock_init)(struct yenta_socket *);
112 };
113 
114 struct yenta_socket {
115 	struct pci_dev *dev;
116 	int cb_irq, io_irq;
117 	void __iomem *base;
118 	struct timer_list poll_timer;
119 
120 	struct pcmcia_socket socket;
121 	struct cardbus_type *type;
122 
123 	u32 flags;
124 
125 	/* for PCI interrupt probing */
126 	unsigned int probe_status;
127 
128 	/* A few words of private data for special stuff of overrides... */
129 	unsigned int private[8];
130 
131 	/* PCI saved state */
132 	u32 saved_state[2];
133 };
134 
135 
136 #endif
137