diff options
Diffstat (limited to 'arch/mips/tx4938/common/irq_handler.S')
| -rw-r--r-- | arch/mips/tx4938/common/irq_handler.S | 84 |
1 files changed, 0 insertions, 84 deletions
diff --git a/arch/mips/tx4938/common/irq_handler.S b/arch/mips/tx4938/common/irq_handler.S deleted file mode 100644 index 1b2f72bac42d..000000000000 --- a/arch/mips/tx4938/common/irq_handler.S +++ /dev/null | |||
| @@ -1,84 +0,0 @@ | |||
| 1 | /* | ||
| 2 | * linux/arch/mips/tx4938/common/handler.S | ||
| 3 | * | ||
| 4 | * Primary interrupt handler for tx4938 based systems | ||
| 5 | * Copyright (C) 2000-2001 Toshiba Corporation | ||
| 6 | * | ||
| 7 | * 2003-2005 (c) MontaVista Software, Inc. This file is licensed under the | ||
| 8 | * terms of the GNU General Public License version 2. This program is | ||
| 9 | * licensed "as is" without any warranty of any kind, whether express | ||
| 10 | * or implied. | ||
| 11 | * | ||
| 12 | * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com) | ||
| 13 | */ | ||
| 14 | #include <asm/asm.h> | ||
| 15 | #include <asm/mipsregs.h> | ||
| 16 | #include <asm/addrspace.h> | ||
| 17 | #include <asm/regdef.h> | ||
| 18 | #include <asm/stackframe.h> | ||
| 19 | #include <asm/tx4938/rbtx4938.h> | ||
| 20 | |||
| 21 | |||
| 22 | .align 5 | ||
| 23 | NESTED(tx4938_irq_handler, PT_SIZE, sp) | ||
| 24 | SAVE_ALL | ||
| 25 | CLI | ||
| 26 | .set at | ||
| 27 | |||
| 28 | mfc0 t0, CP0_CAUSE | ||
| 29 | mfc0 t1, CP0_STATUS | ||
| 30 | and t0, t1 | ||
| 31 | |||
| 32 | andi t1, t0, STATUSF_IP7 /* cpu timer */ | ||
| 33 | bnez t1, ll_ip7 | ||
| 34 | |||
| 35 | /* IP6..IP3 multiplexed -- do not use */ | ||
| 36 | |||
| 37 | andi t1, t0, STATUSF_IP2 /* tx4938 pic */ | ||
| 38 | bnez t1, ll_ip2 | ||
| 39 | |||
| 40 | andi t1, t0, STATUSF_IP1 /* user line 1 */ | ||
| 41 | bnez t1, ll_ip1 | ||
| 42 | |||
| 43 | andi t1, t0, STATUSF_IP0 /* user line 0 */ | ||
| 44 | bnez t1, ll_ip0 | ||
| 45 | |||
| 46 | .set reorder | ||
| 47 | |||
| 48 | nop | ||
| 49 | END(tx4938_irq_handler) | ||
| 50 | |||
| 51 | .align 5 | ||
| 52 | |||
| 53 | |||
| 54 | ll_ip7: | ||
| 55 | li a0, TX4938_IRQ_CPU_TIMER | ||
| 56 | move a1, sp | ||
| 57 | jal do_IRQ | ||
| 58 | j ret_from_irq | ||
| 59 | |||
| 60 | |||
| 61 | ll_ip2: | ||
| 62 | jal tx4938_irq_nested | ||
| 63 | nop | ||
| 64 | beqz v0, goto_spurious_interrupt | ||
| 65 | nop | ||
| 66 | move a0, v0 | ||
| 67 | move a1, sp | ||
| 68 | jal do_IRQ | ||
| 69 | j ret_from_irq | ||
| 70 | |||
| 71 | goto_spurious_interrupt: | ||
| 72 | j ret_from_irq | ||
| 73 | |||
| 74 | ll_ip1: | ||
| 75 | li a0, TX4938_IRQ_USER1 | ||
| 76 | move a1, sp | ||
| 77 | jal do_IRQ | ||
| 78 | j ret_from_irq | ||
| 79 | |||
| 80 | ll_ip0: | ||
| 81 | li a0, TX4938_IRQ_USER0 | ||
| 82 | move a1, sp | ||
| 83 | jal do_IRQ | ||
| 84 | j ret_from_irq | ||