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| author | root <root@artemis.panaceas.org> | 2015-12-25 04:40:36 +0000 |
|---|---|---|
| committer | root <root@artemis.panaceas.org> | 2015-12-25 04:40:36 +0000 |
| commit | 849369d6c66d3054688672f97d31fceb8e8230fb (patch) | |
| tree | 6135abc790ca67dedbe07c39806591e70eda81ce /arch/arm/mach-shark/include/mach/entry-macro.S | |
| download | linux-3.0.35-kobo-849369d6c66d3054688672f97d31fceb8e8230fb.tar.gz linux-3.0.35-kobo-849369d6c66d3054688672f97d31fceb8e8230fb.tar.bz2 linux-3.0.35-kobo-849369d6c66d3054688672f97d31fceb8e8230fb.zip | |
initial_commit
Diffstat (limited to 'arch/arm/mach-shark/include/mach/entry-macro.S')
| -rw-r--r-- | arch/arm/mach-shark/include/mach/entry-macro.S | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/arch/arm/mach-shark/include/mach/entry-macro.S b/arch/arm/mach-shark/include/mach/entry-macro.S new file mode 100644 index 00000000..e2853c0a --- /dev/null +++ b/arch/arm/mach-shark/include/mach/entry-macro.S @@ -0,0 +1,41 @@ +/* + * arch/arm/mach-shark/include/mach/entry-macro.S + * + * Low-level IRQ helper macros for Shark platform + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + .macro disable_fiq + .endm + + .macro get_irqnr_preamble, base, tmp + .endm + + .macro arch_ret_to_user, tmp1, tmp2 + .endm + + .macro get_irqnr_and_base, irqnr, irqstat, base, tmp + mov r4, #0xe0000000 + + mov \irqstat, #0x0C + strb \irqstat, [r4, #0x20] @outb(0x0C, 0x20) /* Poll command */ + ldrb \irqnr, [r4, #0x20] @irq = inb(0x20) & 7 + and \irqstat, \irqnr, #0x80 + teq \irqstat, #0 + beq 43f + and \irqnr, \irqnr, #7 + teq \irqnr, #2 + bne 44f +43: mov \irqstat, #0x0C + strb \irqstat, [r4, #0xa0] @outb(0x0C, 0xA0) /* Poll command */ + ldrb \irqnr, [r4, #0xa0] @irq = (inb(0xA0) & 7) + 8 + and \irqstat, \irqnr, #0x80 + teq \irqstat, #0 + beq 44f + and \irqnr, \irqnr, #7 + add \irqnr, \irqnr, #8 +44: teq \irqstat, #0 + .endm + |