2 * ARConnect IP Support (Multi core enabler: Cross core IPI, RTC ...)
4 * Copyright (C) 2014-15 Synopsys, Inc. (www.synopsys.com)
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.
11 #ifndef __SOC_ARC_MCIP_H
12 #define __SOC_ARC_MCIP_H
14 #include <soc/arc/aux.h>
16 #define ARC_REG_MCIP_BCR 0x0d0
17 #define ARC_REG_MCIP_CMD 0x600
18 #define ARC_REG_MCIP_WDATA 0x601
19 #define ARC_REG_MCIP_READBACK 0x602
22 #ifdef CONFIG_CPU_BIG_ENDIAN
23 unsigned int pad:8, param:16, cmd:8;
25 unsigned int cmd:8, param:16, pad:8;
28 #define CMD_INTRPT_GENERATE_IRQ 0x01
29 #define CMD_INTRPT_GENERATE_ACK 0x02
30 #define CMD_INTRPT_READ_STATUS 0x03
31 #define CMD_INTRPT_CHECK_SOURCE 0x04
33 /* Semaphore Commands */
34 #define CMD_SEMA_CLAIM_AND_READ 0x11
35 #define CMD_SEMA_RELEASE 0x12
37 #define CMD_DEBUG_SET_MASK 0x34
38 #define CMD_DEBUG_SET_SELECT 0x36
40 #define CMD_GFRC_READ_LO 0x42
41 #define CMD_GFRC_READ_HI 0x43
43 #define CMD_IDU_ENABLE 0x71
44 #define CMD_IDU_DISABLE 0x72
45 #define CMD_IDU_SET_MODE 0x74
46 #define CMD_IDU_SET_DEST 0x76
47 #define CMD_IDU_SET_MASK 0x7C
49 #define IDU_M_TRIG_LEVEL 0x0
50 #define IDU_M_TRIG_EDGE 0x1
52 #define IDU_M_DISTRI_RR 0x0
53 #define IDU_M_DISTRI_DEST 0x2
57 #ifdef CONFIG_CPU_BIG_ENDIAN
58 unsigned int pad4:6, pw_dom:1, pad3:1,
59 idu:1, pad2:1, num_cores:6,
60 pad:1, gfrc:1, dbg:1, pw:1,
61 msg:1, sem:1, ipi:1, slv:1,
65 slv:1, ipi:1, sem:1, msg:1,
66 pw:1, dbg:1, gfrc:1, pad:1,
67 num_cores:6, pad2:1, idu:1,
68 pad3:1, pw_dom:1, pad4:6;
73 * MCIP programming model
75 * - Simple commands write {cmd:8,param:16} to MCIP_CMD aux reg
76 * (param could be irq, common_irq, core_id ...)
77 * - More involved commands setup MCIP_WDATA with cmd specific data
78 * before invoking the simple command
80 static inline void __mcip_cmd(unsigned int cmd, unsigned int param)
88 WRITE_AUX(ARC_REG_MCIP_CMD, buf);
92 * Setup additional data for a cmd
93 * Callers need to lock to ensure atomicity
95 static inline void __mcip_cmd_data(unsigned int cmd, unsigned int param,
98 write_aux_reg(ARC_REG_MCIP_WDATA, data);
100 __mcip_cmd(cmd, param);