diff options
Diffstat (limited to 'arch/m68k/platform/68328')
| -rw-r--r-- | arch/m68k/platform/68328/Makefile | 5 | ||||
| -rw-r--r-- | arch/m68k/platform/68328/entry.S | 33 | ||||
| -rw-r--r-- | arch/m68k/platform/68328/ints.c | 10 |
3 files changed, 26 insertions, 22 deletions
diff --git a/arch/m68k/platform/68328/Makefile b/arch/m68k/platform/68328/Makefile index 5e5435552d56..e4dfd8fde068 100644 --- a/arch/m68k/platform/68328/Makefile +++ b/arch/m68k/platform/68328/Makefile @@ -2,7 +2,10 @@ # Makefile for arch/m68knommu/platform/68328. # -head-y = head-$(MODEL).o +model-y := ram +model-$(CONFIG_ROMKERNEL) := rom + +head-y = head-$(model-y).o head-$(CONFIG_PILOT) = head-pilot.o head-$(CONFIG_DRAGEN2) = head-de2.o diff --git a/arch/m68k/platform/68328/entry.S b/arch/m68k/platform/68328/entry.S index f68dce766c0a..5c39b80ed7de 100644 --- a/arch/m68k/platform/68328/entry.S +++ b/arch/m68k/platform/68328/entry.S @@ -67,7 +67,7 @@ ret_from_signal: jra ret_from_exception ENTRY(system_call) - SAVE_ALL + SAVE_ALL_SYS /* save top of frame*/ pea %sp@ @@ -129,7 +129,7 @@ Lsignal_return: * This is the main interrupt handler, responsible for calling process_int() */ inthandler1: - SAVE_ALL + SAVE_ALL_INT movew %sp@(PT_OFF_FORMATVEC), %d0 and #0x3ff, %d0 @@ -140,7 +140,7 @@ inthandler1: bra ret_from_interrupt inthandler2: - SAVE_ALL + SAVE_ALL_INT movew %sp@(PT_OFF_FORMATVEC), %d0 and #0x3ff, %d0 @@ -151,7 +151,7 @@ inthandler2: bra ret_from_interrupt inthandler3: - SAVE_ALL + SAVE_ALL_INT movew %sp@(PT_OFF_FORMATVEC), %d0 and #0x3ff, %d0 @@ -162,7 +162,7 @@ inthandler3: bra ret_from_interrupt inthandler4: - SAVE_ALL + SAVE_ALL_INT movew %sp@(PT_OFF_FORMATVEC), %d0 and #0x3ff, %d0 @@ -173,7 +173,7 @@ inthandler4: bra ret_from_interrupt inthandler5: - SAVE_ALL + SAVE_ALL_INT movew %sp@(PT_OFF_FORMATVEC), %d0 and #0x3ff, %d0 @@ -184,7 +184,7 @@ inthandler5: bra ret_from_interrupt inthandler6: - SAVE_ALL + SAVE_ALL_INT movew %sp@(PT_OFF_FORMATVEC), %d0 and #0x3ff, %d0 @@ -195,7 +195,7 @@ inthandler6: bra ret_from_interrupt inthandler7: - SAVE_ALL + SAVE_ALL_INT movew %sp@(PT_OFF_FORMATVEC), %d0 and #0x3ff, %d0 @@ -206,7 +206,7 @@ inthandler7: bra ret_from_interrupt inthandler: - SAVE_ALL + SAVE_ALL_INT movew %sp@(PT_OFF_FORMATVEC), %d0 and #0x3ff, %d0 @@ -236,27 +236,26 @@ ret_from_interrupt: * Handler for uninitialized and spurious interrupts. */ ENTRY(bad_interrupt) - addql #1,num_spurious + addql #1,irq_err_count rte /* * Beware - when entering resume, prev (the current task) is - * in a0, next (the new task) is in a1,so don't change these + * in a0, next (the new task) is in a1, so don't change these * registers until their contents are no longer needed. */ ENTRY(resume) movel %a0,%d1 /* save prev thread in d1 */ movew %sr,%a0@(TASK_THREAD+THREAD_SR) /* save sr */ - movel %usp,%a2 /* save usp */ - movel %a2,%a0@(TASK_THREAD+THREAD_USP) - SAVE_SWITCH_STACK movel %sp,%a0@(TASK_THREAD+THREAD_KSP) /* save kernel stack */ + movel %usp,%a3 /* save usp */ + movel %a3,%a0@(TASK_THREAD+THREAD_USP) + + movel %a1@(TASK_THREAD+THREAD_USP),%a3 /* restore user stack */ + movel %a3,%usp movel %a1@(TASK_THREAD+THREAD_KSP),%sp /* restore new thread stack */ RESTORE_SWITCH_STACK - - movel %a1@(TASK_THREAD+THREAD_USP),%a0 /* restore user stack */ - movel %a0,%usp movew %a1@(TASK_THREAD+THREAD_SR),%sr /* restore thread status reg */ rts diff --git a/arch/m68k/platform/68328/ints.c b/arch/m68k/platform/68328/ints.c index a90288cf7446..4bd456531f91 100644 --- a/arch/m68k/platform/68328/ints.c +++ b/arch/m68k/platform/68328/ints.c @@ -70,9 +70,6 @@ asmlinkage irqreturn_t inthandler7(void); extern e_vector *_ramvec; -/* The number of spurious interrupts */ -volatile unsigned int num_spurious; - /* The 68k family did not have a good way to determine the source * of interrupts until later in the family. The EC000 core does * not provide the vector number on the stack, we vector everything @@ -155,7 +152,7 @@ static struct irq_chip intc_irq_chip = { * This function should be called during kernel startup to initialize * the machine vector table. */ -void __init init_IRQ(void) +void __init trap_init(void) { int i; @@ -172,6 +169,11 @@ void __init init_IRQ(void) _ramvec[69] = (e_vector) inthandler5; _ramvec[70] = (e_vector) inthandler6; _ramvec[71] = (e_vector) inthandler7; +} + +void __init init_IRQ(void) +{ + int i; IVR = 0x40; /* Set DragonBall IVR (interrupt base) to 64 */ |