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1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * IBM ASM Service Processor Device Driver
4 *
5 * Copyright (C) IBM Corporation, 2004
6 *
7 * Author: Max Asböck <amax@us.ibm.com>
8 */
9
10/* Condor service processor specific hardware definitions */
11
12#ifndef __IBMASM_CONDOR_H__
13#define __IBMASM_CONDOR_H__
14
15#include <asm/io.h>
16
17#define VENDORID_IBM 0x1014
18#define DEVICEID_RSA 0x010F
19
20#define GET_MFA_ADDR(x) (x & 0xFFFFFF00)
21
22#define MAILBOX_FULL(x) (x & 0x00000001)
23
24#define NO_MFAS_AVAILABLE 0xFFFFFFFF
25
26
27#define INBOUND_QUEUE_PORT 0x40 /* contains address of next free MFA */
28#define OUTBOUND_QUEUE_PORT 0x44 /* contains address of posted MFA */
29
30#define SP_INTR_MASK 0x00000008
31#define UART_INTR_MASK 0x00000010
32
33#define INTR_STATUS_REGISTER 0x13A0
34#define INTR_CONTROL_REGISTER 0x13A4
35
36#define SCOUT_COM_A_BASE 0x0000
37#define SCOUT_COM_B_BASE 0x0100
38#define SCOUT_COM_C_BASE 0x0200
39#define SCOUT_COM_D_BASE 0x0300
40
41static inline int sp_interrupt_pending(void __iomem *base_address)
42{
43 return SP_INTR_MASK & readl(base_address + INTR_STATUS_REGISTER);
44}
45
46static inline int uart_interrupt_pending(void __iomem *base_address)
47{
48 return UART_INTR_MASK & readl(base_address + INTR_STATUS_REGISTER);
49}
50
51static inline void ibmasm_enable_interrupts(void __iomem *base_address, int mask)
52{
53 void __iomem *ctrl_reg = base_address + INTR_CONTROL_REGISTER;
54 writel( readl(ctrl_reg) & ~mask, ctrl_reg);
55}
56
57static inline void ibmasm_disable_interrupts(void __iomem *base_address, int mask)
58{
59 void __iomem *ctrl_reg = base_address + INTR_CONTROL_REGISTER;
60 writel( readl(ctrl_reg) | mask, ctrl_reg);
61}
62
63static inline void enable_sp_interrupts(void __iomem *base_address)
64{
65 ibmasm_enable_interrupts(base_address, SP_INTR_MASK);
66}
67
68static inline void disable_sp_interrupts(void __iomem *base_address)
69{
70 ibmasm_disable_interrupts(base_address, SP_INTR_MASK);
71}
72
73static inline void enable_uart_interrupts(void __iomem *base_address)
74{
75 ibmasm_enable_interrupts(base_address, UART_INTR_MASK);
76}
77
78static inline void disable_uart_interrupts(void __iomem *base_address)
79{
80 ibmasm_disable_interrupts(base_address, UART_INTR_MASK);
81}
82
83#define valid_mfa(mfa) ( (mfa) != NO_MFAS_AVAILABLE )
84
85static inline u32 get_mfa_outbound(void __iomem *base_address)
86{
87 int retry;
88 u32 mfa;
89
90 for (retry=0; retry<=10; retry++) {
91 mfa = readl(base_address + OUTBOUND_QUEUE_PORT);
92 if (valid_mfa(mfa))
93 break;
94 }
95 return mfa;
96}
97
98static inline void set_mfa_outbound(void __iomem *base_address, u32 mfa)
99{
100 writel(mfa, base_address + OUTBOUND_QUEUE_PORT);
101}
102
103static inline u32 get_mfa_inbound(void __iomem *base_address)
104{
105 u32 mfa = readl(base_address + INBOUND_QUEUE_PORT);
106
107 if (MAILBOX_FULL(mfa))
108 return 0;
109
110 return mfa;
111}
112
113static inline void set_mfa_inbound(void __iomem *base_address, u32 mfa)
114{
115 writel(mfa, base_address + INBOUND_QUEUE_PORT);
116}
117
118static inline struct i2o_message *get_i2o_message(void __iomem *base_address, u32 mfa)
119{
120 return (struct i2o_message *)(GET_MFA_ADDR(mfa) + base_address);
121}
122
123#endif /* __IBMASM_CONDOR_H__ */
1/*
2 * IBM ASM Service Processor Device Driver
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17 *
18 * Copyright (C) IBM Corporation, 2004
19 *
20 * Author: Max Asböck <amax@us.ibm.com>
21 *
22 */
23
24/* Condor service processor specific hardware definitions */
25
26#ifndef __IBMASM_CONDOR_H__
27#define __IBMASM_CONDOR_H__
28
29#include <asm/io.h>
30
31#define VENDORID_IBM 0x1014
32#define DEVICEID_RSA 0x010F
33
34#define GET_MFA_ADDR(x) (x & 0xFFFFFF00)
35
36#define MAILBOX_FULL(x) (x & 0x00000001)
37
38#define NO_MFAS_AVAILABLE 0xFFFFFFFF
39
40
41#define INBOUND_QUEUE_PORT 0x40 /* contains address of next free MFA */
42#define OUTBOUND_QUEUE_PORT 0x44 /* contains address of posted MFA */
43
44#define SP_INTR_MASK 0x00000008
45#define UART_INTR_MASK 0x00000010
46
47#define INTR_STATUS_REGISTER 0x13A0
48#define INTR_CONTROL_REGISTER 0x13A4
49
50#define SCOUT_COM_A_BASE 0x0000
51#define SCOUT_COM_B_BASE 0x0100
52#define SCOUT_COM_C_BASE 0x0200
53#define SCOUT_COM_D_BASE 0x0300
54
55static inline int sp_interrupt_pending(void __iomem *base_address)
56{
57 return SP_INTR_MASK & readl(base_address + INTR_STATUS_REGISTER);
58}
59
60static inline int uart_interrupt_pending(void __iomem *base_address)
61{
62 return UART_INTR_MASK & readl(base_address + INTR_STATUS_REGISTER);
63}
64
65static inline void ibmasm_enable_interrupts(void __iomem *base_address, int mask)
66{
67 void __iomem *ctrl_reg = base_address + INTR_CONTROL_REGISTER;
68 writel( readl(ctrl_reg) & ~mask, ctrl_reg);
69}
70
71static inline void ibmasm_disable_interrupts(void __iomem *base_address, int mask)
72{
73 void __iomem *ctrl_reg = base_address + INTR_CONTROL_REGISTER;
74 writel( readl(ctrl_reg) | mask, ctrl_reg);
75}
76
77static inline void enable_sp_interrupts(void __iomem *base_address)
78{
79 ibmasm_enable_interrupts(base_address, SP_INTR_MASK);
80}
81
82static inline void disable_sp_interrupts(void __iomem *base_address)
83{
84 ibmasm_disable_interrupts(base_address, SP_INTR_MASK);
85}
86
87static inline void enable_uart_interrupts(void __iomem *base_address)
88{
89 ibmasm_enable_interrupts(base_address, UART_INTR_MASK);
90}
91
92static inline void disable_uart_interrupts(void __iomem *base_address)
93{
94 ibmasm_disable_interrupts(base_address, UART_INTR_MASK);
95}
96
97#define valid_mfa(mfa) ( (mfa) != NO_MFAS_AVAILABLE )
98
99static inline u32 get_mfa_outbound(void __iomem *base_address)
100{
101 int retry;
102 u32 mfa;
103
104 for (retry=0; retry<=10; retry++) {
105 mfa = readl(base_address + OUTBOUND_QUEUE_PORT);
106 if (valid_mfa(mfa))
107 break;
108 }
109 return mfa;
110}
111
112static inline void set_mfa_outbound(void __iomem *base_address, u32 mfa)
113{
114 writel(mfa, base_address + OUTBOUND_QUEUE_PORT);
115}
116
117static inline u32 get_mfa_inbound(void __iomem *base_address)
118{
119 u32 mfa = readl(base_address + INBOUND_QUEUE_PORT);
120
121 if (MAILBOX_FULL(mfa))
122 return 0;
123
124 return mfa;
125}
126
127static inline void set_mfa_inbound(void __iomem *base_address, u32 mfa)
128{
129 writel(mfa, base_address + INBOUND_QUEUE_PORT);
130}
131
132static inline struct i2o_message *get_i2o_message(void __iomem *base_address, u32 mfa)
133{
134 return (struct i2o_message *)(GET_MFA_ADDR(mfa) + base_address);
135}
136
137#endif /* __IBMASM_CONDOR_H__ */