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authorDan Williams <dan.j.williams@intel.com>2006-12-06 20:59:39 -0500
committerRussell King <rmk+kernel@arm.linux.org.uk>2006-12-07 12:20:21 -0500
commit285f5fa7e9a35e75d9022f9b036ed709721c5cdf (patch)
treed977aecd1a350e2c14086005b873141d8d829e12 /include/asm-arm/arch-iop13xx/entry-macro.S
parent4dbda6a50ae34d853353f15d30a166c87143408f (diff)
[ARM] 3995/1: iop13xx: add iop13xx support
The iop348 processor integrates an Xscale (XSC3 512KB L2 Cache) core with a Serial Attached SCSI (SAS) controller, multi-ported DDR2 memory controller, 3 Application Direct Memory Access (DMA) controllers, a 133Mhz PCI-X interface, a x8 PCI-Express interface, and other peripherals to form a system-on-a-chip RAID subsystem engine. The iop342 processor replaces the SAS controller with a second Xscale core for dual core embedded applications. The iop341 processor is the single core version of iop342. This patch supports the two Intel customer reference platforms iq81340mc for external storage and iq81340sc for direct attach (HBA) development. The developer's manual is available here: ftp://download.intel.com/design/iio/docs/31503701.pdf Changelog: * removed virtual addresses from resource definitions * cleaned up some unnecessary #include's Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/asm-arm/arch-iop13xx/entry-macro.S')
-rw-r--r--include/asm-arm/arch-iop13xx/entry-macro.S39
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diff --git a/include/asm-arm/arch-iop13xx/entry-macro.S b/include/asm-arm/arch-iop13xx/entry-macro.S
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1/*
2 * iop13xx low level irq macros
3 * Copyright (c) 2005-2006, Intel Corporation.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms and conditions of the GNU General Public License,
7 * version 2, as published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
16 * Place - Suite 330, Boston, MA 02111-1307 USA.
17 *
18 */
19 .macro disable_fiq
20 .endm
21
22 /*
23 * Note: a 1-cycle window exists where iintvec will return the value
24 * of iintbase, so we explicitly check for "bad zeros"
25 */
26 .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
27 mrc p15, 0, \tmp, c15, c1, 0
28 orr \tmp, \tmp, #(1 << 6)
29 mcr p15, 0, \tmp, c15, c1, 0 @ Enable cp6 access
30
31 mrc p6, 0, \irqnr, c3, c2, 0 @ Read IINTVEC
32 cmp \irqnr, #0
33 mrceq p6, 0, \irqnr, c3, c2, 0 @ Re-read on potentially bad zero
34 adds \irqstat, \irqnr, #1 @ Check for 0xffffffff
35 movne \irqnr, \irqnr, lsr #2 @ Convert to irqnr
36
37 biceq \tmp, \tmp, #(1 << 6)
38 mcreq p15, 0, \tmp, c15, c1, 0 @ Disable cp6 access if no more interrupts
39 .endm