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linux-pinenote/arch/arm/mach-pxa/include/mach/entry-macro.S

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Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
/*
[ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach This just leaves include/asm-arm/plat-* to deal with. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-05 16:14:15 +01:00
* arch/arm/mach-pxa/include/mach/entry-macro.S
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
*
* Low-level IRQ helper macros for PXA-based platforms
*
* 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.
*/
[ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach This just leaves include/asm-arm/plat-* to deal with. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-05 16:14:15 +01:00
#include <mach/hardware.h>
#include <mach/irqs.h>
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
.macro disable_fiq
.endm
[ARM] 4185/2: entry: introduce get_irqnr_preamble and arch_ret_to_user get_irqnr_preamble allows machines to take some action before entering the get_irqnr_and_base loop. On iop we enable cp6 access. arch_ret_to_user is added to the userspace return path to allow individual architectures to take actions, like disabling coprocessor access, before the final return to userspace. Per Nicolas Pitre's note, there is no need to cp_wait on the return to user as the latency to return is sufficient. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-16 22:16:32 +01:00
.macro get_irqnr_preamble, base, tmp
.endm
.macro arch_ret_to_user, tmp1, tmp2
.endm
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
[ARM] 4440/1: PXA: enable the checking of ICIP2 for IRQs ICIP2 is not examined during IRQ entrance, this patch add the checking if the processor is PXA27x or later, with CoreG bits in CPUID (Core Generation) > 1 Signed-off-by: eric miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-06-06 06:49:59 +01:00
mrc p15, 0, \tmp, c0, c0, 0 @ CPUID
mov \tmp, \tmp, lsr #13
and \tmp, \tmp, #0x7 @ Core G
cmp \tmp, #1
[ARM] pxa: initialize default interrupt priority and use ICHP for IRQ handling Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2009-08-19 19:49:31 +08:00
bhi 1002f
[ARM] 4440/1: PXA: enable the checking of ICIP2 for IRQs ICIP2 is not examined during IRQ entrance, this patch add the checking if the processor is PXA27x or later, with CoreG bits in CPUID (Core Generation) > 1 Signed-off-by: eric miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-06-06 06:49:59 +01:00
[ARM] pxa: initialize default interrupt priority and use ICHP for IRQ handling Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2009-08-19 19:49:31 +08:00
@ Core Generation 1 (PXA25x)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
mov \base, #io_p2v(0x40000000) @ IIR Ctl = 0x40d00000
add \base, \base, #0x00d00000
ldr \irqstat, [\base, #0] @ ICIP
ldr \irqnr, [\base, #4] @ ICMR
[ARM] 4440/1: PXA: enable the checking of ICIP2 for IRQs ICIP2 is not examined during IRQ entrance, this patch add the checking if the processor is PXA27x or later, with CoreG bits in CPUID (Core Generation) > 1 Signed-off-by: eric miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-06-06 06:49:59 +01:00
[ARM] 4840/1: pxa: fix the typo in get_irqnr_and_base This typo causes the incorrect calculation of the IRQ numbers in the ICIP2 registers. Signed-off-by: eric miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-02-27 01:59:28 +01:00
ands \irqnr, \irqstat, \irqnr
[ARM] pxa: initialize default interrupt priority and use ICHP for IRQ handling Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2009-08-19 19:49:31 +08:00
beq 1001f
[ARM] 4440/1: PXA: enable the checking of ICIP2 for IRQs ICIP2 is not examined during IRQ entrance, this patch add the checking if the processor is PXA27x or later, with CoreG bits in CPUID (Core Generation) > 1 Signed-off-by: eric miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-06-06 06:49:59 +01:00
rsb \irqstat, \irqnr, #0
and \irqstat, \irqstat, \irqnr
clz \irqnr, \irqstat
[ARM] pxa: initialize default interrupt priority and use ICHP for IRQ handling Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2009-08-19 19:49:31 +08:00
rsb \irqnr, \irqnr, #(31 + PXA_IRQ(0))
[ARM] 4440/1: PXA: enable the checking of ICIP2 for IRQs ICIP2 is not examined during IRQ entrance, this patch add the checking if the processor is PXA27x or later, with CoreG bits in CPUID (Core Generation) > 1 Signed-off-by: eric miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-06-06 06:49:59 +01:00
b 1001f
1002:
[ARM] pxa: initialize default interrupt priority and use ICHP for IRQ handling Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2009-08-19 19:49:31 +08:00
@ Core Generation 2 (PXA27x) or Core Generation 3 (PXA3xx)
mrc p6, 0, \irqstat, c5, c0, 0 @ ICHP
tst \irqstat, #0x80000000
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
beq 1001f
[ARM] pxa: initialize default interrupt priority and use ICHP for IRQ handling Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2009-08-19 19:49:31 +08:00
bic \irqstat, \irqstat, #0x80000000
mov \irqnr, \irqstat, lsr #16
[ARM] pxa: fix interrupts number calculation when CONFIG_PXA_HAVE_ISA_IRQS=y Commit d2c37068429b29d6549cf3486fc84b836689e122 ([ARM] pxa: initialize default interrupt priority and use ICHP for IRQ handling) broke ISA interrupt support on pxa27x/3xx. In such a case, PXA_IRQ(0) != 0, and the IRQ number computed from ICHP must be offset by PXA_IRQ(0). Tested on an Arcom Zeus (pxa270), with both CONFIG_PXA_HAVE_ISA_IRQS enabled and disabled. Signed-off-by: Marc Zyngier <maz@misterjones.org> Tested-by: Haojian Zhuang <haojian.zhuang@marvell.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2009-11-05 08:10:10 +01:00
add \irqnr, \irqnr, #(PXA_IRQ(0))
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 15:20:36 -07:00
1001:
.endm
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