From: Mark A. Greer <[email protected]> Integrate the Common Platform Interrupt Controller (cp_intc) support into the low-level irq handling for davinci and similar platforms. Do it such that support for cp_intc and the original aintc can coexist in the same kernel binary.
Signed-off-by: Mark A. Greer <[email protected]> --- arch/arm/mach-davinci/Kconfig | 6 ++++++ arch/arm/mach-davinci/Makefile | 6 ++++-- arch/arm/mach-davinci/common.c | 2 ++ arch/arm/mach-davinci/include/mach/common.h | 1 + arch/arm/mach-davinci/include/mach/entry-macro.S | 19 +++++++++++++++++++ 5 files changed, 32 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-davinci/Kconfig b/arch/arm/mach-davinci/Kconfig index 6dbe7df..d9bbd41 100644 --- a/arch/arm/mach-davinci/Kconfig +++ b/arch/arm/mach-davinci/Kconfig @@ -1,5 +1,8 @@ if ARCH_DAVINCI +config AINTC + bool + config CP_INTC bool @@ -9,12 +12,15 @@ comment "DaVinci Core Type" config ARCH_DAVINCI_DM644x bool "DaVinci 644x based system" + select AINTC config ARCH_DAVINCI_DM646x bool "DaVinci 646x based system" + select AINTC config ARCH_DAVINCI_DM355 bool "DaVinci 355 based system" + select AINTC comment "DaVinci Board Type" diff --git a/arch/arm/mach-davinci/Makefile b/arch/arm/mach-davinci/Makefile index 6cb8f60..fab706e 100644 --- a/arch/arm/mach-davinci/Makefile +++ b/arch/arm/mach-davinci/Makefile @@ -4,8 +4,8 @@ # # Common objects -obj-y := time.o irq.o clock.o serial.o io.o psc.o \ - gpio.o devices.o usb.o dma.o iram.o common.o +obj-y := time.o clock.o serial.o io.o psc.o gpio.o \ + devices.o usb.o dma.o iram.o common.o obj-$(CONFIG_DAVINCI_MUX) += mux.o obj-$(CONFIG_TI_DAVINCI_EMAC) += mac_addr.o @@ -15,6 +15,8 @@ obj-$(CONFIG_TI_DAVINCI_EMAC_MODULE) += mac_addr.o obj-$(CONFIG_ARCH_DAVINCI_DM644x) += dm644x.o obj-$(CONFIG_ARCH_DAVINCI_DM646x) += dm646x.o obj-$(CONFIG_ARCH_DAVINCI_DM355) += dm355.o + +obj-$(CONFIG_AINTC) += irq.o obj-$(CONFIG_CP_INTC) += cp_intc.o # Board specific diff --git a/arch/arm/mach-davinci/common.c b/arch/arm/mach-davinci/common.c index 046ebb7..902d677 100644 --- a/arch/arm/mach-davinci/common.c +++ b/arch/arm/mach-davinci/common.c @@ -23,6 +23,7 @@ struct davinci_soc_info *davinci_soc_info; EXPORT_SYMBOL(davinci_soc_info); void __iomem *davinci_intc_base; +int davinci_intc_type; static struct davinci_id * __init davinci_get_id(u32 jtag_id) { @@ -86,6 +87,7 @@ int __init davinci_common_init(struct davinci_soc_info *soc_info) } davinci_intc_base = davinci_soc_info->intc_base; + davinci_intc_type = davinci_soc_info->intc_type; return 0; diff --git a/arch/arm/mach-davinci/include/mach/common.h b/arch/arm/mach-davinci/include/mach/common.h index 63d5188..6df5f66 100644 --- a/arch/arm/mach-davinci/include/mach/common.h +++ b/arch/arm/mach-davinci/include/mach/common.h @@ -18,6 +18,7 @@ extern struct sys_timer davinci_timer; extern void davinci_irq_init(void); extern void __iomem *davinci_intc_base; +extern int davinci_intc_type; /* parameters describe VBUS sourcing for host mode */ extern void setup_usb(unsigned mA, unsigned potpgt_msec); diff --git a/arch/arm/mach-davinci/include/mach/entry-macro.S b/arch/arm/mach-davinci/include/mach/entry-macro.S index ed78851..fbdebc7 100644 --- a/arch/arm/mach-davinci/include/mach/entry-macro.S +++ b/arch/arm/mach-davinci/include/mach/entry-macro.S @@ -23,9 +23,28 @@ .endm .macro get_irqnr_and_base, irqnr, irqstat, base, tmp +#if defined(CONFIG_AINTC) && defined(CONFIG_CP_INTC) + ldr \tmp, =davinci_intc_type + ldr \tmp, [\tmp] + cmp \tmp, #DAVINCI_INTC_TYPE_CP_INTC + beq 1001f +#endif +#if defined(CONFIG_AINTC) ldr \tmp, [\base, #0x14] movs \tmp, \tmp, lsr #2 sub \irqnr, \tmp, #1 + b 1002f +#endif +#if defined(CONFIG_CP_INTC) +1001: ldr \irqnr, [\base, #0x80] /* get irq number */ + and \irqnr, \irqnr, #0xff /* irq is in bits 0-9 */ + mov \tmp, \irqnr, lsr #3 + and \tmp, \tmp, #0xfc + add \tmp, \tmp, #0x280 /* get the register offset */ + ldr \irqstat, [\base, \tmp] /* get the intc status */ + cmp \irqstat, #0x0 +#endif +1002: .endm .macro irq_prio_table -- 1.6.0.3 _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
