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| author | Kevin | 2014-11-15 09:58:27 +0800 |
|---|---|---|
| committer | Kevin | 2014-11-15 09:58:27 +0800 |
| commit | 392e8802486cb573b916e746010e141a75f507e6 (patch) | |
| tree | 50029aca02c81f087b90336e670b44e510782330 /ANDROID_3.4.5/arch/arm/mach-vt8500/include/mach/entry-macro.S | |
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init android origin source code
Diffstat (limited to 'ANDROID_3.4.5/arch/arm/mach-vt8500/include/mach/entry-macro.S')
| -rw-r--r-- | ANDROID_3.4.5/arch/arm/mach-vt8500/include/mach/entry-macro.S | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/ANDROID_3.4.5/arch/arm/mach-vt8500/include/mach/entry-macro.S b/ANDROID_3.4.5/arch/arm/mach-vt8500/include/mach/entry-macro.S new file mode 100644 index 00000000..367d1b55 --- /dev/null +++ b/ANDROID_3.4.5/arch/arm/mach-vt8500/include/mach/entry-macro.S @@ -0,0 +1,26 @@ +/* + * arch/arm/mach-vt8500/include/mach/entry-macro.S + * + * Low-level IRQ helper macros for VIA VT8500 + * + * 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 get_irqnr_preamble, base, tmp + @ physical 0xd8140000 is virtual 0xf8140000 + mov \base, #0xf8000000 + orr \base, \base, #0x00140000 + .endm + + .macro get_irqnr_and_base, irqnr, irqstat, base, tmp + ldr \irqnr, [\base] + cmp \irqnr, #63 @ may be false positive, check interrupt status + bne 1001f + ldr \irqstat, [\base, #0x84] + ands \irqstat, #0x80000000 + moveq \irqnr, #0 +1001: + .endm + |