aboutsummaryrefslogtreecommitdiff
path: root/arch/sparc/include/asm/leon_amba.h
blob: f3034eddf4682569c257a2ce19941b013a98c218 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
/*
*Copyright (C) 2004 Konrad Eisele (eiselekd@web.de,konrad@gaisler.com), Gaisler Research
*Copyright (C) 2004 Stefan Holst (mail@s-holst.de), Uni-Stuttgart
*Copyright (C) 2009 Daniel Hellstrom (daniel@gaisler.com),Konrad Eisele (konrad@gaisler.com) Aeroflex Gaisler AB
*/

#ifndef LEON_AMBA_H_INCLUDE
#define LEON_AMBA_H_INCLUDE

#ifndef __ASSEMBLY__

struct amba_prom_registers {
	unsigned int phys_addr;	/* The physical address of this register */
	unsigned int reg_size;	/* How many bytes does this register take up? */
};

#endif

/*
 *  The following defines the bits in the LEON UART Status Registers.
 */

#define LEON_REG_UART_STATUS_DR   0x00000001	/* Data Ready */
#define LEON_REG_UART_STATUS_TSE  0x00000002	/* TX Send Register Empty */
#define LEON_REG_UART_STATUS_THE  0x00000004	/* TX Hold Register Empty */
#define LEON_REG_UART_STATUS_BR   0x00000008	/* Break Error */
#define LEON_REG_UART_STATUS_OE   0x00000010	/* RX Overrun Error */
#define LEON_REG_UART_STATUS_PE   0x00000020	/* RX Parity Error */
#define LEON_REG_UART_STATUS_FE   0x00000040	/* RX Framing Error */
#define LEON_REG_UART_STATUS_ERR  0x00000078	/* Error Mask */

/*
 *  The following defines the bits in the LEON UART Ctrl Registers.
 */

#define LEON_REG_UART_CTRL_RE     0x00000001	/* Receiver enable */
#define LEON_REG_UART_CTRL_TE     0x00000002	/* Transmitter enable */
#define LEON_REG_UART_CTRL_RI     0x00000004	/* Receiver interrupt enable */
#define LEON_REG_UART_CTRL_TI     0x00000008	/* Transmitter irq */
#define LEON_REG_UART_CTRL_PS     0x00000010	/* Parity select */
#define LEON_REG_UART_CTRL_PE     0x00000020	/* Parity enable */
#define LEON_REG_UART_CTRL_FL     0x00000040	/* Flow control enable */
#define LEON_REG_UART_CTRL_LB     0x00000080	/* Loop Back enable */

#define LEON3_GPTIMER_EN 1
#define LEON3_GPTIMER_RL 2
#define LEON3_GPTIMER_LD 4
#define LEON3_GPTIMER_IRQEN 8
#define LEON3_GPTIMER_SEPIRQ 8

#define LEON23_REG_TIMER_CONTROL_EN    0x00000001 /* 1 = enable counting */
/* 0 = hold scalar and counter */
#define LEON23_REG_TIMER_CONTROL_RL    0x00000002 /* 1 = reload at 0 */
						  /* 0 = stop at 0 */
#define LEON23_REG_TIMER_CONTROL_LD    0x00000004 /* 1 = load counter */
						  /* 0 = no function */
#define LEON23_REG_TIMER_CONTROL_IQ    0x00000008 /* 1 = irq enable */
						  /* 0 = no function */

/*
 *  The following defines the bits in the LEON PS/2 Status Registers.
 */

#define LEON_REG_PS2_STATUS_DR   0x00000001	/* Data Ready */
#define LEON_REG_PS2_STATUS_PE   0x00000002	/* Parity error */
#define LEON_REG_PS2_STATUS_FE   0x00000004	/* Framing error */
#define LEON_REG_PS2_STATUS_KI   0x00000008	/* Keyboard inhibit */
#define LEON_REG_PS2_STATUS_RF   0x00000010	/* RX buffer full */
#define LEON_REG_PS2_STATUS_TF   0x00000020	/* TX buffer full */

/*
 *  The following defines the bits in the LEON PS/2 Ctrl Registers.
 */

#define LEON_REG_PS2_CTRL_RE 0x00000001	/* Receiver enable */
#define LEON_REG_PS2_CTRL_TE 0x00000002	/* Transmitter enable */
#define LEON_REG_PS2_CTRL_RI 0x00000004	/* Keyboard receive irq  */
#define LEON_REG_PS2_CTRL_TI 0x00000008	/* Keyboard transmit irq */

#define LEON3_IRQMPSTATUS_CPUNR     28
#define LEON3_IRQMPSTATUS_BROADCAST 27

#define GPTIMER_CONFIG_IRQNT(a)          (((a) >> 3) & 0x1f)
#define GPTIMER_CONFIG_ISSEP(a)          ((a) & (1 << 8))
#define GPTIMER_CONFIG_NTIMERS(a)        ((a) & (0x7))
#define LEON3_GPTIMER_CTRL_PENDING       0x10
#define LEON3_GPTIMER_CONFIG_NRTIMERS(c) ((c)->config & 0x7)
#define LEON3_GPTIMER_CTRL_ISPENDING(r)  (((r)&LEON3_GPTIMER_CTRL_PENDING) ? 1 : 0)

#ifndef __ASSEMBLY__

struct leon3_irqctrl_regs_map {
	u32 ilevel;
	u32 ipend;
	u32 iforce;
	u32 iclear;
	u32 mpstatus;
	u32 mpbroadcast;
	u32 notused02;
	u32 notused03;
	u32 ampctrl;
	u32 icsel[2];
	u32 notused13;
	u32 notused20;
	u32 notused21;
	u32 notused22;
	u32 notused23;
	u32 mask[16];
	u32 force[16];
	/* Extended IRQ registers */
	u32 intid[16];	/* 0xc0 */
	u32 unused[(0x1000-0x100)/4];
};

struct leon3_apbuart_regs_map {
	u32 data;
	u32 status;
	u32 ctrl;
	u32 scaler;
};

struct leon3_gptimerelem_regs_map {
	u32 val;
	u32 rld;
	u32 ctrl;
	u32 unused;
};

struct leon3_gptimer_regs_map {
	u32 scalar;
	u32 scalar_reload;
	u32 config;
	u32 unused;
	struct leon3_gptimerelem_regs_map e[8];
};

/*
 *  Types and structure used for AMBA Plug & Play bus scanning
 */

#define AMBA_MAXAPB_DEVS 64
#define AMBA_MAXAPB_DEVS_PERBUS 16

struct amba_device_table {
	int devnr;		   /* number of devices on AHB or APB bus */
	unsigned int *addr[16];    /* addresses to the devices configuration tables */
	unsigned int allocbits[1]; /* 0=unallocated, 1=allocated driver */
};

struct amba_apbslv_device_table {
	int devnr;		                  /* number of devices on AHB or APB bus */
	unsigned int *addr[AMBA_MAXAPB_DEVS];     /* addresses to the devices configuration tables */
	unsigned int apbmst[AMBA_MAXAPB_DEVS];    /* apb master if a entry is a apb slave */
	unsigned int apbmstidx[AMBA_MAXAPB_DEVS]; /* apb master idx if a entry is a apb slave */
	unsigned int allocbits[4];                /* 0=unallocated, 1=allocated driver */
};

struct amba_confarea_type {
	struct amba_confarea_type *next;/* next bus in chain */
	struct amba_device_table ahbmst;
	struct amba_device_table ahbslv;
	struct amba_apbslv_device_table apbslv;
	unsigned int apbmst;
};

/* collect apb slaves */
struct amba_apb_device {
	unsigned int start, irq, bus_id;
	struct amba_confarea_type *bus;
};

/* collect ahb slaves */
struct amba_ahb_device {
	unsigned int start[4], irq, bus_id;
	struct amba_confarea_type *bus;
};

struct device_node;
void _amba_init(struct device_node *dp, struct device_node ***nextp);

extern unsigned long amba_system_id;
extern struct leon3_irqctrl_regs_map *leon3_irqctrl_regs;
extern struct leon3_gptimer_regs_map *leon3_gptimer_regs;
extern struct amba_apb_device leon_percpu_timer_dev[16];
extern int leondebug_irq_disable;
extern int leon_debug_irqout;
extern unsigned long leon3_gptimer_irq;
extern unsigned int sparc_leon_eirq;

#endif /* __ASSEMBLY__ */

#define LEON3_IO_AREA 0xfff00000
#define LEON3_CONF_AREA 0xff000
#define LEON3_AHB_SLAVE_CONF_AREA (1 << 11)

#define LEON3_AHB_CONF_WORDS 8
#define LEON3_APB_CONF_WORDS 2
#define LEON3_AHB_MASTERS 16
#define LEON3_AHB_SLAVES 16
#define LEON3_APB_SLAVES 16
#define LEON3_APBUARTS 8

/* Vendor codes */
#define VENDOR_GAISLER   1
#define VENDOR_PENDER    2
#define VENDOR_ESA       4
#define VENDOR_OPENCORES 8

/* Gaisler Research device id's */
#define GAISLER_LEON3    0x003
#define GAISLER_LEON3DSU 0x004
#define GAISLER_ETHAHB   0x005
#define GAISLER_APBMST   0x006
#define GAISLER_AHBUART  0x007
#define GAISLER_SRCTRL   0x008
#define GAISLER_SDCTRL   0x009
#define GAISLER_APBUART  0x00C
#define GAISLER_IRQMP    0x00D
#define GAISLER_AHBRAM   0x00E
#define GAISLER_GPTIMER  0x011
#define GAISLER_PCITRG   0x012
#define GAISLER_PCISBRG  0x013
#define GAISLER_PCIFBRG  0x014
#define GAISLER_PCITRACE 0x015
#define GAISLER_PCIDMA   0x016
#define GAISLER_AHBTRACE 0x017
#define GAISLER_ETHDSU   0x018
#define GAISLER_PIOPORT  0x01A
#define GAISLER_GRGPIO   0x01A
#define GAISLER_AHBJTAG  0x01c
#define GAISLER_ETHMAC   0x01D
#define GAISLER_AHB2AHB  0x020
#define GAISLER_USBDC    0x021
#define GAISLER_ATACTRL  0x024
#define GAISLER_DDRSPA   0x025
#define GAISLER_USBEHC   0x026
#define GAISLER_USBUHC   0x027
#define GAISLER_I2CMST   0x028
#define GAISLER_SPICTRL  0x02D
#define GAISLER_DDR2SPA  0x02E
#define GAISLER_SPIMCTRL 0x045
#define GAISLER_LEON4    0x048
#define GAISLER_LEON4DSU 0x049
#define GAISLER_AHBSTAT  0x052
#define GAISLER_FTMCTRL  0x054
#define GAISLER_KBD      0x060
#define GAISLER_VGA      0x061
#define GAISLER_SVGA     0x063
#define GAISLER_GRSYSMON 0x066
#define GAISLER_GRACECTRL 0x067

#define GAISLER_L2TIME   0xffd	/* internal device: leon2 timer */
#define GAISLER_L2C      0xffe	/* internal device: leon2compat */
#define GAISLER_PLUGPLAY 0xfff	/* internal device: plug & play configarea */

/* Chip IDs */
#define AEROFLEX_UT699    0x0699
#define LEON4_NEXTREME1   0x0102
#define GAISLER_GR712RC   0x0712

#define amba_vendor(x) (((x) >> 24) & 0xff)

#define amba_device(x) (((x) >> 12) & 0xfff)

#endif