diff options
-rw-r--r-- | nuttx/arch/arm/src/arm/up_vectors.S | 10 | ||||
-rw-r--r-- | nuttx/arch/arm/src/armv7-a/arm.h | 2 | ||||
-rw-r--r-- | nuttx/arch/arm/src/armv7-a/arm_vectors.S | 8 | ||||
-rw-r--r-- | nuttx/arch/arm/src/sama5/sam_timerisr.c | 31 |
4 files changed, 28 insertions, 23 deletions
diff --git a/nuttx/arch/arm/src/arm/up_vectors.S b/nuttx/arch/arm/src/arm/up_vectors.S index bcf9c37d0..043516a50 100644 --- a/nuttx/arch/arm/src/arm/up_vectors.S +++ b/nuttx/arch/arm/src/arm/up_vectors.S @@ -139,7 +139,7 @@ up_vectorirq: bl up_decodeirq /* Call the handler */ #endif - /* Restore the CPSR, SVC modr registers and return */ + /* Restore the CPSR, SVC mode registers and return */ .Lnoirqset: ldr r0, [sp, #(4*REG_CPSR)] /* Setup the SVC mode SPSR */ msr spsr, r0 @@ -192,7 +192,7 @@ up_vectorswi: mov r0, sp /* Get r0=xcp */ bl up_syscall /* Call the handler */ - /* Restore the CPSR, SVC modr registers and return */ + /* Restore the CPSR, SVC mode registers and return */ ldr r0, [sp, #(4*REG_CPSR)] /* Setup the SVC mode SPSR */ msr spsr, r0 @@ -263,7 +263,7 @@ up_vectordata: #endif bl up_dataabort /* Call the handler */ - /* Restore the CPSR, SVC modr registers and return */ + /* Restore the CPSR, SVC mode registers and return */ ldr r0, [sp, #(4*REG_CPSR)] /* Setup the SVC mode SPSR */ msr spsr_cxsf, r0 @@ -333,7 +333,7 @@ up_vectorprefetch: mov r0, sp /* Get r0=xcp */ bl up_prefetchabort /* Call the handler */ - /* Restore the CPSR, SVC modr registers and return */ + /* Restore the CPSR, SVC mode registers and return */ ldr r0, [sp, #(4*REG_CPSR)] /* Setup the SVC mode SPSR */ msr spsr_cxsf, r0 @@ -400,7 +400,7 @@ up_vectorundefinsn: mov r0, sp /* Get r0=xcp */ bl up_undefinedinsn /* Call the handler */ - /* Restore the CPSR, SVC modr registers and return */ + /* Restore the CPSR, SVC mode registers and return */ ldr r0, [sp, #(4*REG_CPSR)] /* Setup the SVC mode SPSR */ msr spsr_cxsf, r0 diff --git a/nuttx/arch/arm/src/armv7-a/arm.h b/nuttx/arch/arm/src/armv7-a/arm.h index 8afe16061..3257f4de6 100644 --- a/nuttx/arch/arm/src/armv7-a/arm.h +++ b/nuttx/arch/arm/src/armv7-a/arm.h @@ -57,7 +57,7 @@ /* PSR bits */ -#define PSR_MODE_SHIFT (1) /* Bits 0-4: Mode fields */ +#define PSR_MODE_SHIFT (0) /* Bits 0-4: Mode fields */ #define PSR_MODE_MASK (31 << PSR_MODE_SHIFT) # define PSR_MODE_USR (16 << PSR_MODE_SHIFT) /* User mode */ # define PSR_MODE_FIQ (17 << PSR_MODE_SHIFT) /* FIQ mode */ diff --git a/nuttx/arch/arm/src/armv7-a/arm_vectors.S b/nuttx/arch/arm/src/armv7-a/arm_vectors.S index 0c91139b0..b1ff40f25 100644 --- a/nuttx/arch/arm/src/armv7-a/arm_vectors.S +++ b/nuttx/arch/arm/src/armv7-a/arm_vectors.S @@ -215,7 +215,7 @@ arm_vectorswi: * context switch is required. */ - /* Restore the CPSR, SVC modr registers and return */ + /* Restore the CPSR, SVC mode registers and return */ ldr r1, [r0, #(4*REG_CPSR)] /* Setup the SVC mode SPSR */ msr spsr, r1 @@ -294,7 +294,7 @@ arm_vectordata: * context switch is required. */ - /* Restore the CPSR, SVC modr registers and return */ + /* Restore the CPSR, SVC mode registers and return */ ldr r1, [r0, #(4*REG_CPSR)] /* Setup the SVC mode SPSR */ msr spsr_cxsf, r1 @@ -376,7 +376,7 @@ arm_vectorprefetch: * context switch is required. */ - /* Restore the CPSR, SVC modr registers and return */ + /* Restore the CPSR, SVC mode registers and return */ ldr r1, [r0, #(4*REG_CPSR)] /* Setup the SVC mode SPSR */ msr spsr_cxsf, r1 @@ -453,7 +453,7 @@ arm_vectorundefinsn: * context switch is required. */ - /* Restore the CPSR, SVC modr registers and return */ + /* Restore the CPSR, SVC mode registers and return */ ldr r1, [r0, #(4*REG_CPSR)] /* Setup the SVC mode SPSR */ msr spsr_cxsf, r1 diff --git a/nuttx/arch/arm/src/sama5/sam_timerisr.c b/nuttx/arch/arm/src/sama5/sam_timerisr.c index 6ba87074c..c04871321 100644 --- a/nuttx/arch/arm/src/sama5/sam_timerisr.c +++ b/nuttx/arch/arm/src/sama5/sam_timerisr.c @@ -48,6 +48,7 @@ #include <arch/board/board.h> #include "up_arch.h" +#include "sam_periphclks.h" #include "chip/sam_pit.h" /**************************************************************************** @@ -100,23 +101,23 @@ int up_timerisr(int irq, uint32_t *regs) { - /* "When CPIV and PICNT values are obtained by reading the Periodic - * Interval Value Register (PIT_PIVR), the overflow counter (PICNT) is - * reset and the PITS is cleared, thus acknowledging the interrupt. The - * value of PICNT gives the number of periodic intervals elapsed since the - * last read of PIT_PIVR. - */ + /* "When CPIV and PICNT values are obtained by reading the Periodic + * Interval Value Register (PIT_PIVR), the overflow counter (PICNT) is + * reset and the PITS is cleared, thus acknowledging the interrupt. The + * value of PICNT gives the number of periodic intervals elapsed since the + * last read of PIT_PIVR. + */ - uint32_t picnt = getreg32(SAM_PIT_PIVR) >> PIT_PICNT_SHIFT; + uint32_t picnt = getreg32(SAM_PIT_PIVR) >> PIT_PICNT_SHIFT; - /* Process timer interrupt (multiple times if we missed an interrupt) */ + /* Process timer interrupt (multiple times if we missed an interrupt) */ - while (picnt-- > 0) - { - sched_process_timer(); - } + while (picnt-- > 0) + { + sched_process_timer(); + } - return OK; + return OK; } /**************************************************************************** @@ -132,6 +133,10 @@ void up_timerinit(void) { uint32_t regval; + /* Enable the PIT peripheral */ + + sam_pit_enableclk(); + /* Make sure that interrupts from the PIT are disabled */ up_disable_irq(SAM_IRQ_PIT); |