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ETRAX: Support timer count reads and correct frequencies. 

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6206 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
edgar_igl 2009-01-07 13:24:40 +00:00
parent c38ac98da5
commit ab86bb3b08
1 changed files with 7 additions and 26 deletions
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33
hw/etraxfs_timer.c
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@ -75,15 +75,6 @@ struct fs_timer_t {
uint32_t r_masked_intr;
};
static uint32_t timer_rinvalid (void *opaque, target_phys_addr_t addr)
{
struct fs_timer_t *t = opaque;
CPUState *env = t->env;
cpu_abort(env, "Unsupported short access. reg=" TARGET_FMT_plx "\n",
addr);
return 0;
}
static uint32_t timer_readl (void *opaque, target_phys_addr_t addr)
{
struct fs_timer_t *t = opaque;
@ -91,9 +82,10 @@ static uint32_t timer_readl (void *opaque, target_phys_addr_t addr)
switch (addr) {
case R_TMR0_DATA:
r = ptimer_get_count(t->ptimer_t0);
break;
case R_TMR1_DATA:
D(printf ("R_TMR1_DATA\n"));
r = ptimer_get_count(t->ptimer_t1);
break;
case R_TIME:
r = qemu_get_clock(vm_clock) / 10;
@ -111,15 +103,6 @@ static uint32_t timer_readl (void *opaque, target_phys_addr_t addr)
return r;
}
static void
timer_winvalid (void *opaque, target_phys_addr_t addr, uint32_t value)
{
struct fs_timer_t *t = opaque;
CPUState *env = t->env;
cpu_abort(env, "Unsupported short access. reg=" TARGET_FMT_plx "\n",
addr);
}
#define TIMER_SLOWDOWN 1
static void update_ctrl(struct fs_timer_t *t, int tnum)
{
@ -155,7 +138,7 @@ static void update_ctrl(struct fs_timer_t *t, int tnum)
case 4: freq_hz = 29493000; break;
case 5: freq_hz = 32000000; break;
case 6: freq_hz = 32768000; break;
case 7: freq_hz = 100001000; break;
case 7: freq_hz = 100000000; break;
default:
abort();
break;
@ -163,8 +146,8 @@ static void update_ctrl(struct fs_timer_t *t, int tnum)
D(printf ("freq_hz=%d div=%d\n", freq_hz, div));
div = div * TIMER_SLOWDOWN;
div >>= 10;
freq_hz >>= 10;
div /= 1000;
freq_hz /= 1000;
ptimer_set_freq(timer, freq_hz);
ptimer_set_limit(timer, div, 0);
@ -309,14 +292,12 @@ timer_writel (void *opaque, target_phys_addr_t addr, uint32_t value)
}
static CPUReadMemoryFunc *timer_read[] = {
&timer_rinvalid,
&timer_rinvalid,
NULL, NULL,
&timer_readl,
};
static CPUWriteMemoryFunc *timer_write[] = {
&timer_winvalid,
&timer_winvalid,
NULL, NULL,
&timer_writel,
};