diff options
Diffstat (limited to 'arch/mips/emma2rh/common/irq_emma2rh.c')
-rw-r--r-- | arch/mips/emma2rh/common/irq_emma2rh.c | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/arch/mips/emma2rh/common/irq_emma2rh.c b/arch/mips/emma2rh/common/irq_emma2rh.c deleted file mode 100644 index 96df37b7775..00000000000 --- a/arch/mips/emma2rh/common/irq_emma2rh.c +++ /dev/null | |||
@@ -1,106 +0,0 @@ | |||
1 | /* | ||
2 | * arch/mips/emma2rh/common/irq_emma2rh.c | ||
3 | * This file defines the irq handler for EMMA2RH. | ||
4 | * | ||
5 | * Copyright (C) NEC Electronics Corporation 2005-2006 | ||
6 | * | ||
7 | * This file is based on the arch/mips/ddb5xxx/ddb5477/irq_5477.c | ||
8 | * | ||
9 | * Copyright 2001 MontaVista Software Inc. | ||
10 | * | ||
11 | * This program is free software; you can redistribute it and/or modify | ||
12 | * it under the terms of the GNU General Public License as published by | ||
13 | * the Free Software Foundation; either version 2 of the License, or | ||
14 | * (at your option) any later version. | ||
15 | * | ||
16 | * This program is distributed in the hope that it will be useful, | ||
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
19 | * GNU General Public License for more details. | ||
20 | * | ||
21 | * You should have received a copy of the GNU General Public License | ||
22 | * along with this program; if not, write to the Free Software | ||
23 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
24 | */ | ||
25 | |||
26 | /* | ||
27 | * EMMA2RH defines 64 IRQs. | ||
28 | * | ||
29 | * This file exports one function: | ||
30 | * emma2rh_irq_init(u32 irq_base); | ||
31 | */ | ||
32 | |||
33 | #include <linux/interrupt.h> | ||
34 | #include <linux/types.h> | ||
35 | #include <linux/ptrace.h> | ||
36 | |||
37 | #include <asm/debug.h> | ||
38 | |||
39 | #include <asm/emma2rh/emma2rh.h> | ||
40 | |||
41 | /* number of total irqs supported by EMMA2RH */ | ||
42 | #define NUM_EMMA2RH_IRQ 96 | ||
43 | |||
44 | static int emma2rh_irq_base = -1; | ||
45 | |||
46 | void ll_emma2rh_irq_enable(int); | ||
47 | void ll_emma2rh_irq_disable(int); | ||
48 | |||
49 | static void emma2rh_irq_enable(unsigned int irq) | ||
50 | { | ||
51 | ll_emma2rh_irq_enable(irq - emma2rh_irq_base); | ||
52 | } | ||
53 | |||
54 | static void emma2rh_irq_disable(unsigned int irq) | ||
55 | { | ||
56 | ll_emma2rh_irq_disable(irq - emma2rh_irq_base); | ||
57 | } | ||
58 | |||
59 | struct irq_chip emma2rh_irq_controller = { | ||
60 | .name = "emma2rh_irq", | ||
61 | .ack = emma2rh_irq_disable, | ||
62 | .mask = emma2rh_irq_disable, | ||
63 | .mask_ack = emma2rh_irq_disable, | ||
64 | .unmask = emma2rh_irq_enable, | ||
65 | }; | ||
66 | |||
67 | void emma2rh_irq_init(u32 irq_base) | ||
68 | { | ||
69 | u32 i; | ||
70 | |||
71 | for (i = irq_base; i < irq_base + NUM_EMMA2RH_IRQ; i++) | ||
72 | set_irq_chip_and_handler(i, &emma2rh_irq_controller, | ||
73 | handle_level_irq); | ||
74 | |||
75 | emma2rh_irq_base = irq_base; | ||
76 | } | ||
77 | |||
78 | void ll_emma2rh_irq_enable(int emma2rh_irq) | ||
79 | { | ||
80 | u32 reg_value; | ||
81 | u32 reg_bitmask; | ||
82 | u32 reg_index; | ||
83 | |||
84 | reg_index = EMMA2RH_BHIF_INT_EN_0 | ||
85 | + (EMMA2RH_BHIF_INT_EN_1 - EMMA2RH_BHIF_INT_EN_0) | ||
86 | * (emma2rh_irq / 32); | ||
87 | reg_value = emma2rh_in32(reg_index); | ||
88 | reg_bitmask = 0x1 << (emma2rh_irq % 32); | ||
89 | db_assert((reg_value & reg_bitmask) == 0); | ||
90 | emma2rh_out32(reg_index, reg_value | reg_bitmask); | ||
91 | } | ||
92 | |||
93 | void ll_emma2rh_irq_disable(int emma2rh_irq) | ||
94 | { | ||
95 | u32 reg_value; | ||
96 | u32 reg_bitmask; | ||
97 | u32 reg_index; | ||
98 | |||
99 | reg_index = EMMA2RH_BHIF_INT_EN_0 | ||
100 | + (EMMA2RH_BHIF_INT_EN_1 - EMMA2RH_BHIF_INT_EN_0) | ||
101 | * (emma2rh_irq / 32); | ||
102 | reg_value = emma2rh_in32(reg_index); | ||
103 | reg_bitmask = 0x1 << (emma2rh_irq % 32); | ||
104 | db_assert((reg_value & reg_bitmask) != 0); | ||
105 | emma2rh_out32(reg_index, reg_value & ~reg_bitmask); | ||
106 | } | ||