From 4e0a1b8c070fe204a406521496f01cf02c74e933 Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Mon, 20 Aug 2012 10:14:56 +0800 Subject: [PATCH] ARM: mxs: select MULTI_IRQ_HANDLER As part of multi-platform effort, let's enable MULTI_IRQ_HANDLER for mach-mxs and remove entry-macro.S. Signed-off-by: Shawn Guo --- arch/arm/Kconfig | 1 + arch/arm/mach-mxs/icoll.c | 18 +++++++++- arch/arm/mach-mxs/include/mach/common.h | 1 + arch/arm/mach-mxs/include/mach/entry-macro.S | 35 -------------------- arch/arm/mach-mxs/mach-mxs.c | 2 ++ 5 files changed, 21 insertions(+), 36 deletions(-) delete mode 100644 arch/arm/mach-mxs/include/mach/entry-macro.S diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index e91c7cdc6fe5..72070865a791 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -489,6 +489,7 @@ config ARCH_MXS select CLKSRC_MMIO select COMMON_CLK select HAVE_CLK_PREPARE + select MULTI_IRQ_HANDLER select PINCTRL select USE_OF help diff --git a/arch/arm/mach-mxs/icoll.c b/arch/arm/mach-mxs/icoll.c index 23ca9d083b2c..a11b6184026e 100644 --- a/arch/arm/mach-mxs/icoll.c +++ b/arch/arm/mach-mxs/icoll.c @@ -20,13 +20,14 @@ #include #include #include - +#include #include #include #define HW_ICOLL_VECTOR 0x0000 #define HW_ICOLL_LEVELACK 0x0010 #define HW_ICOLL_CTRL 0x0020 +#define HW_ICOLL_STAT_OFFSET 0x0070 #define HW_ICOLL_INTERRUPTn_SET(n) (0x0124 + (n) * 0x10) #define HW_ICOLL_INTERRUPTn_CLR(n) (0x0128 + (n) * 0x10) #define BM_ICOLL_INTERRUPTn_ENABLE 0x00000004 @@ -63,6 +64,21 @@ static struct irq_chip mxs_icoll_chip = { .irq_unmask = icoll_unmask_irq, }; +asmlinkage void __exception_irq_entry icoll_handle_irq(struct pt_regs *regs) +{ + u32 irqnr; + + do { + irqnr = __raw_readl(icoll_base + HW_ICOLL_STAT_OFFSET); + if (irqnr != 0x7f) { + __raw_writel(irqnr, icoll_base + HW_ICOLL_VECTOR); + handle_IRQ(irqnr, regs); + continue; + } + break; + } while (1); +} + void __init icoll_init_irq(void) { int i; diff --git a/arch/arm/mach-mxs/include/mach/common.h b/arch/arm/mach-mxs/include/mach/common.h index a7416c8a85ff..10e4e12df870 100644 --- a/arch/arm/mach-mxs/include/mach/common.h +++ b/arch/arm/mach-mxs/include/mach/common.h @@ -28,6 +28,7 @@ extern void mx28_map_io(void); extern void mx28_init_irq(void); extern void icoll_init_irq(void); +extern void icoll_handle_irq(struct pt_regs *); extern struct platform_device *mxs_add_dma(const char *devid, resource_size_t base); diff --git a/arch/arm/mach-mxs/include/mach/entry-macro.S b/arch/arm/mach-mxs/include/mach/entry-macro.S deleted file mode 100644 index 0c14259705b9..000000000000 --- a/arch/arm/mach-mxs/include/mach/entry-macro.S +++ /dev/null @@ -1,35 +0,0 @@ -/* - * Low-level IRQ helper macros for Freescale MXS-based - * - * Copyright (C) 2009-2010 Freescale Semiconductor, Inc. All Rights Reserved. - * - * 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; either version 2 of the License, or - * (at your option) any later version. - * - * 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 Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#include - -#define MXS_ICOLL_VBASE MXS_IO_ADDRESS(MXS_ICOLL_BASE_ADDR) -#define HW_ICOLL_STAT_OFFSET 0x70 - - .macro get_irqnr_and_base, irqnr, irqstat, base, tmp - ldr \irqnr, [\base, #HW_ICOLL_STAT_OFFSET] - cmp \irqnr, #0x7F - strne \irqnr, [\base] - moveqs \irqnr, #0 - .endm - - .macro get_irqnr_preamble, base, tmp - ldr \base, =MXS_ICOLL_VBASE - .endm diff --git a/arch/arm/mach-mxs/mach-mxs.c b/arch/arm/mach-mxs/mach-mxs.c index 78bf07a8cd3c..b07af1c12cb6 100644 --- a/arch/arm/mach-mxs/mach-mxs.c +++ b/arch/arm/mach-mxs/mach-mxs.c @@ -294,6 +294,7 @@ static const char *imx28_dt_compat[] __initdata = { DT_MACHINE_START(IMX23, "Freescale i.MX23 (Device Tree)") .map_io = mx23_map_io, .init_irq = mxs_dt_init_irq, + .handle_irq = icoll_handle_irq, .timer = &imx23_timer, .init_machine = mxs_machine_init, .dt_compat = imx23_dt_compat, @@ -303,6 +304,7 @@ MACHINE_END DT_MACHINE_START(IMX28, "Freescale i.MX28 (Device Tree)") .map_io = mx28_map_io, .init_irq = mxs_dt_init_irq, + .handle_irq = icoll_handle_irq, .timer = &imx28_timer, .init_machine = mxs_machine_init, .dt_compat = imx28_dt_compat, -- 2.20.1