diff options
| -rw-r--r-- | arch/arm/mach-shmobile/Makefile | 5 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/board-ap4evb.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/board-g3evm.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/board-g4evm.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/board-mackerel.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/entry-intc.S | 57 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/include/mach/common.h | 1 |
7 files changed, 67 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile index ab100e4bddd6..e385ef03d5bd 100644 --- a/arch/arm/mach-shmobile/Makefile +++ b/arch/arm/mach-shmobile/Makefile @@ -18,6 +18,11 @@ pfc-$(CONFIG_ARCH_SH7377) += pfc-sh7377.o pfc-$(CONFIG_ARCH_SH7372) += pfc-sh7372.o pfc-$(CONFIG_ARCH_SH73A0) += pfc-sh73a0.o +# IRQ objects +obj-$(CONFIG_ARCH_SH7367) += entry-intc.o +obj-$(CONFIG_ARCH_SH7377) += entry-intc.o +obj-$(CONFIG_ARCH_SH7372) += entry-intc.o + # Board objects obj-$(CONFIG_MACH_G3EVM) += board-g3evm.o obj-$(CONFIG_MACH_G4EVM) += board-g4evm.o diff --git a/arch/arm/mach-shmobile/board-ap4evb.c b/arch/arm/mach-shmobile/board-ap4evb.c index 86edc772f82a..cd79d7c1ba0d 100644 --- a/arch/arm/mach-shmobile/board-ap4evb.c +++ b/arch/arm/mach-shmobile/board-ap4evb.c @@ -1361,6 +1361,7 @@ static struct sys_timer ap4evb_timer = { MACHINE_START(AP4EVB, "ap4evb") .map_io = ap4evb_map_io, .init_irq = sh7372_init_irq, + .handle_irq = shmobile_handle_irq_intc, .init_machine = ap4evb_init, .timer = &ap4evb_timer, MACHINE_END diff --git a/arch/arm/mach-shmobile/board-g3evm.c b/arch/arm/mach-shmobile/board-g3evm.c index 3b83d6320bec..686b304a7708 100644 --- a/arch/arm/mach-shmobile/board-g3evm.c +++ b/arch/arm/mach-shmobile/board-g3evm.c @@ -367,6 +367,7 @@ static struct sys_timer g3evm_timer = { MACHINE_START(G3EVM, "g3evm") .map_io = g3evm_map_io, .init_irq = sh7367_init_irq, + .handle_irq = shmobile_handle_irq_intc, .init_machine = g3evm_init, .timer = &g3evm_timer, MACHINE_END diff --git a/arch/arm/mach-shmobile/board-g4evm.c b/arch/arm/mach-shmobile/board-g4evm.c index 5b3b582ef3f2..c13f01280b7e 100644 --- a/arch/arm/mach-shmobile/board-g4evm.c +++ b/arch/arm/mach-shmobile/board-g4evm.c @@ -394,6 +394,7 @@ static struct sys_timer g4evm_timer = { MACHINE_START(G4EVM, "g4evm") .map_io = g4evm_map_io, .init_irq = sh7377_init_irq, + .handle_irq = shmobile_handle_irq_intc, .init_machine = g4evm_init, .timer = &g4evm_timer, MACHINE_END diff --git a/arch/arm/mach-shmobile/board-mackerel.c b/arch/arm/mach-shmobile/board-mackerel.c index 6a5ce9a0dcf3..5bcf5c1e1399 100644 --- a/arch/arm/mach-shmobile/board-mackerel.c +++ b/arch/arm/mach-shmobile/board-mackerel.c @@ -1194,6 +1194,7 @@ static struct sys_timer mackerel_timer = { MACHINE_START(MACKEREL, "mackerel") .map_io = mackerel_map_io, .init_irq = sh7372_init_irq, + .handle_irq = shmobile_handle_irq_intc, .init_machine = mackerel_init, .timer = &mackerel_timer, MACHINE_END diff --git a/arch/arm/mach-shmobile/entry-intc.S b/arch/arm/mach-shmobile/entry-intc.S new file mode 100644 index 000000000000..cac0a7ae2084 --- /dev/null +++ b/arch/arm/mach-shmobile/entry-intc.S @@ -0,0 +1,57 @@ +/* + * ARM Interrupt demux handler using INTC + * + * Copyright (C) 2010 Magnus Damm + * Copyright (C) 2008 Renesas Solutions Corp. + * + * 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. + */ + +#include <asm/entry-macro-multi.S> + +#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 get_irqnr_preamble, base, tmp + ldr \base, =INTCA_BASE + .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 + + .macro test_for_ipi, irqnr, irqstat, base, tmp + .endm + + .macro test_for_ltirq, irqnr, irqstat, base, tmp + .endm + + arch_irq_handler shmobile_handle_irq_intc diff --git a/arch/arm/mach-shmobile/include/mach/common.h b/arch/arm/mach-shmobile/include/mach/common.h index 49ac8ebdc184..ab75183bfd76 100644 --- a/arch/arm/mach-shmobile/include/mach/common.h +++ b/arch/arm/mach-shmobile/include/mach/common.h @@ -5,6 +5,7 @@ extern struct sys_timer shmobile_timer; extern void shmobile_setup_console(void); struct clk; extern int clk_init(void); +extern void shmobile_handle_irq_intc(struct pt_regs *); extern void sh7367_init_irq(void); extern void sh7367_add_early_devices(void); |