From: Greg Ungerer <[email protected]> The ColdFire 53xx Family of SoCs (that is the 537x and 532x) contain the more modern Freescale Programmable Interrupt Timer (PIT) hardware module. Switch to using it in preference to the older timers.c driving code.
This will allow future clean ups to the old timers.c code that supports the simple 16bit counter timer. The 53xx family also supports the 32bit DMA timer hardware module, and we will use that for accurate timing. Signed-off-by: Greg Ungerer <[email protected]> --- arch/m68k/Kconfig.cpu | 2 ++ arch/m68k/include/asm/m53xxsim.h | 19 ++++++++++--------- arch/m68k/platform/coldfire/Makefile | 2 +- 3 files changed, 13 insertions(+), 10 deletions(-) diff --git a/arch/m68k/Kconfig.cpu b/arch/m68k/Kconfig.cpu index 33013df..a255f65 100644 --- a/arch/m68k/Kconfig.cpu +++ b/arch/m68k/Kconfig.cpu @@ -231,6 +231,7 @@ config M532x depends on !MMU select M53xx select HAVE_CACHE_CB + select GENERIC_CLOCKEVENTS help Freescale (Motorola) ColdFire 532x processor support. @@ -239,6 +240,7 @@ config M537x depends on !MMU select M53xx select HAVE_CACHE_CB + select GENERIC_CLOCKEVENTS help Freescale ColdFire 537x processor support. diff --git a/arch/m68k/include/asm/m53xxsim.h b/arch/m68k/include/asm/m53xxsim.h index faa1a21..5497216 100644 --- a/arch/m68k/include/asm/m53xxsim.h +++ b/arch/m68k/include/asm/m53xxsim.h @@ -23,6 +23,7 @@ #define MCFINT_FECRX0 36 /* Interrupt number for FEC */ #define MCFINT_FECTX0 40 /* Interrupt number for FEC */ #define MCFINT_FECENTC0 42 /* Interrupt number for FEC */ +#define MCFINT_PIT1 43 /* Interrupt number for PIT1 */ #define MCF_IRQ_UART0 (MCFINT_VECBASE + MCFINT_UART0) #define MCF_IRQ_UART1 (MCFINT_VECBASE + MCFINT_UART1) @@ -33,6 +34,7 @@ #define MCF_IRQ_FECENTC0 (MCFINT_VECBASE + MCFINT_FECENTC0) #define MCF_IRQ_QSPI (MCFINT_VECBASE + MCFINT_QSPI) +#define MCF_IRQ_PIT1 (MCFINT_VECBASE + MCFINT_PIT1) #define MCF_WTM_WCR 0xFC098000 @@ -82,15 +84,6 @@ #define MCFINTC2_CIMR (0) #define MCFINTC2_ICR0 (0) -#define MCFSIM_ICR_TIMER1 (0xFC048040+32) -#define MCFSIM_ICR_TIMER2 (0xFC048040+33) - -/* - * Define system peripheral IRQ usage. - */ -#define MCF_IRQ_TIMER (64 + 32) /* Timer0 */ -#define MCF_IRQ_PROFILER (64 + 33) /* Timer1 */ - /* * UART module. */ @@ -115,6 +108,14 @@ #define MCFQSPI_CS2 86 /* + * PIT timer module. + */ +#define MCFPIT_BASE1 0xFC080000 /* Base address of TIMER1 */ +#define MCFPIT_BASE2 0xFC084000 /* Base address of TIMER2 */ +#define MCFPIT_BASE3 0xFC088000 /* Base address of TIMER3 */ +#define MCFPIT_BASE4 0xFC08C000 /* Base address of TIMER4 */ + +/* * Timer module. */ #define MCFTIMER_BASE1 0xFC070000 /* Base address of TIMER1 */ diff --git a/arch/m68k/platform/coldfire/Makefile b/arch/m68k/platform/coldfire/Makefile index 68f0fac..0818f77 100644 --- a/arch/m68k/platform/coldfire/Makefile +++ b/arch/m68k/platform/coldfire/Makefile @@ -25,7 +25,7 @@ obj-$(CONFIG_M527x) += m527x.o pit.o intc-2.o reset.o obj-$(CONFIG_M5272) += m5272.o intc-5272.o timers.o obj-$(CONFIG_M528x) += m528x.o pit.o intc-2.o reset.o obj-$(CONFIG_M5307) += m5307.o timers.o intc.o reset.o -obj-$(CONFIG_M53xx) += m53xx.o timers.o intc-simr.o reset.o +obj-$(CONFIG_M53xx) += m53xx.o pit.o intc-simr.o reset.o obj-$(CONFIG_M5407) += m5407.o timers.o intc.o reset.o obj-$(CONFIG_M54xx) += m54xx.o sltimers.o intc-2.o obj-$(CONFIG_M5441x) += m5441x.o pit.o intc-simr.o reset.o -- 1.8.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-m68k" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
