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-rw-r--r--hw/sh7750.c102
1 files changed, 6 insertions, 96 deletions
diff --git a/hw/sh7750.c b/hw/sh7750.c
index dcba14e1af..9002da31af 100644
--- a/hw/sh7750.c
+++ b/hw/sh7750.c
@@ -64,13 +64,6 @@ typedef struct SH7750State {
uint8_t scbrr2;
fifo serial2_receive_fifo;
fifo serial2_transmit_fifo;
- /* Timers */
- uint8_t tstr;
- /* Timer 0 */
- QEMUTimer *timer0;
- uint16_t tcr0;
- uint32_t tcor0;
- uint32_t tcnt0;
/* IO ports */
uint16_t gpioic;
uint32_t pctra;
@@ -88,83 +81,8 @@ typedef struct SH7750State {
sh7750_io_device *devices[NB_DEVICES]; /* External peripherals */
/* Cache */
uint32_t ccr;
-} SH7750State;
-
-/**********************************************************************
- Timers
-**********************************************************************/
-
-/* XXXXX At this time, timer0 works in underflow only mode, that is
- the value of tcnt0 is read at alarm computation time and cannot
- be read back by the guest OS */
-
-static void start_timer0(SH7750State * s)
-{
- uint64_t now, next, prescaler;
-
- if ((s->tcr0 & 6) == 6) {
- fprintf(stderr, "rtc clock for timer 0 not supported\n");
- assert(0);
- }
- if ((s->tcr0 & 7) == 5) {
- fprintf(stderr, "timer 0 configuration not supported\n");
- assert(0);
- }
-
- if ((s->tcr0 & 4) == 4)
- prescaler = 1024;
- else
- prescaler = 4 << (s->tcr0 & 3);
-
- now = qemu_get_clock(vm_clock);
- /* XXXXX */
- next =
- now + muldiv64(prescaler * s->tcnt0, ticks_per_sec,
- s->periph_freq);
- if (next == now)
- next = now + 1;
- fprintf(stderr, "now=%016" PRIx64 ", next=%016" PRIx64 "\n", now, next);
- fprintf(stderr, "timer will underflow in %f seconds\n",
- (float) (next - now) / (float) ticks_per_sec);
-
- qemu_mod_timer(s->timer0, next);
-}
-
-static void timer_start_changed(SH7750State * s)
-{
- if (s->tstr & SH7750_TSTR_STR0) {
- start_timer0(s);
- } else {
- fprintf(stderr, "timer 0 is stopped\n");
- qemu_del_timer(s->timer0);
- }
-}
-
-static void timer0_cb(void *opaque)
-{
- SH7750State *s = opaque;
-
- s->tcnt0 = (uint32_t) 0; /* XXXXX */
- if (--s->tcnt0 == (uint32_t) - 1) {
- fprintf(stderr, "timer 0 underflow\n");
- s->tcnt0 = s->tcor0;
- s->tcr0 |= SH7750_TCR_UNF;
- if (s->tcr0 & SH7750_TCR_UNIE) {
- fprintf(stderr,
- "interrupt generation for timer 0 not supported\n");
- assert(0);
- }
- }
- start_timer0(s);
-}
-
-static void init_timers(SH7750State * s)
-{
- s->tcor0 = 0xffffffff;
- s->tcnt0 = 0xffffffff;
- s->timer0 = qemu_new_timer(vm_clock, &timer0_cb, s);
-}
+} SH7750State;
/**********************************************************************
First serial port
@@ -581,8 +499,6 @@ static uint32_t sh7750_mem_readw(void *opaque, target_phys_addr_t addr)
fprintf(stderr,
"Read access to refresh count register, incrementing\n");
return s->rfcr++;
- case SH7750_TCR0_A7:
- return s->tcr0;
case SH7750_SCLSR2_A7:
/* Read and clear overflow bit */
r = s->sclsr2;
@@ -649,10 +565,6 @@ static void sh7750_mem_writeb(void *opaque, target_phys_addr_t addr,
case SH7750_SCBRR2_A7:
s->scbrr2 = mem_value;
return;
- case SH7750_TSTR_A7:
- s->tstr = mem_value;
- timer_start_changed(s);
- return;
case SH7750_SCSCR1_A7:
s->scscr1 = mem_value;
scscr1_changed(s);
@@ -721,9 +633,6 @@ static void sh7750_mem_writew(void *opaque, target_phys_addr_t addr,
case SH7750_SCSMR2_A7:
s->scsmr2 = mem_value;
return;
- case SH7750_TCR0_A7:
- s->tcr0 = mem_value;
- return;
case SH7750_GPIOIC_A7:
s->gpioic = mem_value;
if (mem_value != 0) {
@@ -768,9 +677,6 @@ static void sh7750_mem_writel(void *opaque, target_phys_addr_t addr,
s->portpullupb = portpullup(mem_value);
portb_changed(s, temp);
return;
- case SH7750_TCNT0_A7:
- s->tcnt0 = mem_value & 0xf;
- return;
case SH7750_MMUCR_A7:
s->cpu->mmucr = mem_value;
return;
@@ -828,7 +734,11 @@ SH7750State *sh7750_init(CPUSH4State * cpu)
sh7750_mem_read,
sh7750_mem_write, s);
cpu_register_physical_memory(0x1c000000, 0x04000000, sh7750_io_memory);
- init_timers(s);
init_serial_ports(s);
+
+ tmu012_init(0x1fd80000,
+ TMU012_FEAT_TOCR | TMU012_FEAT_3CHAN | TMU012_FEAT_EXTCLK,
+ s->periph_freq);
+ tmu012_init(0x1e100000, 0, s->periph_freq);
return s;
}