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ARM: mach-shmobile: Rely on run-time IRQ handlers

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Remove now unused IRQ demux code. All R-Mobile and
SH-Mobile processors should register IRQ demux
handlers during run-time.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Magnus Damm 2010-12-28 08:27:19 +00:00 committed by Paul Mundt
parent e74a9625f8
commit 018a3fc7e3
4 changed files with 18 additions and 98 deletions
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29
arch/arm/mach-shmobile/include/mach/entry-macro-gic.S
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@ -1,29 +0,0 @@
/*
* Copyright (C) 2010 Renesas Solutions Corp.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <mach/hardware.h>
#include <asm/hardware/gic.h>
#include <asm/hardware/entry-macro-gic.S>
.macro disable_fiq
.endm
.macro get_irqnr_preamble, base, tmp
ldr \base, =(0xf0000100)
.endm
.macro arch_ret_to_user, tmp1, tmp2
.endm

61
arch/arm/mach-shmobile/include/mach/entry-macro-intc.S
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@ -1,61 +0,0 @@
/*
* Copyright (C) 2010 Magnus Damm
* Copyright (C) 2008 Renesas Solutions Corp.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <mach/irqs.h>
#define INTCA_BASE 0xe6980000
#define INTFLGA_OFFS 0x00000018 /* accept pending interrupt */
#define INTEVTA_OFFS 0x00000020 /* vector number of accepted interrupt */
#define INTLVLA_OFFS 0x00000030 /* priority level of accepted interrupt */
#define INTLVLB_OFFS 0x00000034 /* previous priority level */
.macro disable_fiq
.endm
.macro get_irqnr_preamble, base, tmp
ldr \base, =INTCA_BASE
.endm
.macro arch_ret_to_user, tmp1, tmp2
.endm
.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
/* The single INTFLGA read access below results in the following:
*
* 1. INTLVLB is updated with old priority value from INTLVLA
* 2. Highest priority interrupt is accepted
* 3. INTLVLA is updated to contain priority of accepted interrupt
* 4. Accepted interrupt vector is stored in INTFLGA and INTEVTA
*/
ldr \irqnr, [\base, #INTFLGA_OFFS]
/* Restore INTLVLA with the value saved in INTLVLB.
* This is required to support interrupt priorities properly.
*/
ldrb \tmp, [\base, #INTLVLB_OFFS]
strb \tmp, [\base, #INTLVLA_OFFS]
/* Handle invalid vector number case */
cmp \irqnr, #0
beq 1000f
/* Convert vector to irq number, same as the evt2irq() macro */
lsr \irqnr, \irqnr, #0x5
subs \irqnr, \irqnr, #16
1000:
.endm

23
arch/arm/mach-shmobile/include/mach/entry-macro.S
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@ -14,8 +14,21 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#if defined(CONFIG_ARM_GIC)
#include <mach/entry-macro-gic.S>
#else
#include <mach/entry-macro-intc.S>
#endif
.macro disable_fiq
.endm
.macro get_irqnr_preamble, base, tmp
.endm
.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
.endm
.macro test_for_ipi, irqnr, irqstat, base, tmp
.endm
.macro test_for_ltirq, irqnr, irqstat, base, tmp
.endm
.macro arch_ret_to_user, tmp1, tmp2
.endm

3
arch/arm/mach-shmobile/include/mach/hardware.h
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@ -1,7 +1,4 @@
#ifndef __ASM_MACH_HARDWARE_H
#define __ASM_MACH_HARDWARE_H
/* INTFLGA register - used by low level interrupt code in entry-macro.S */
#define INTFLGA 0xe6980018
#endif /* __ASM_MACH_HARDWARE_H */