M48T02 support (Robert Reif)
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3872 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
blueswir1
parent
9ed1e6671c
commit
4aed2c33eb
51
hw/m48t59.c
51
hw/m48t59.c
@ -36,13 +36,13 @@
|
||||
#endif
|
||||
|
||||
/*
|
||||
* The M48T08 and M48T59 chips are very similar. The newer '59 has
|
||||
* The M48T02, M48T08 and M48T59 chips are very similar. The newer '59 has
|
||||
* alarm and a watchdog timer and related control registers. In the
|
||||
* PPC platform there is also a nvram lock function.
|
||||
*/
|
||||
struct m48t59_t {
|
||||
/* Model parameters */
|
||||
int type; // 8 = m48t08, 59 = m48t59
|
||||
int type; // 2 = m48t02, 8 = m48t08, 59 = m48t59
|
||||
/* Hardware parameters */
|
||||
qemu_irq IRQ;
|
||||
int mem_index;
|
||||
@ -210,9 +210,14 @@ void m48t59_write (void *opaque, uint32_t addr, uint32_t val)
|
||||
|
||||
if (addr > 0x1FF8 && addr < 0x2000)
|
||||
NVRAM_PRINTF("%s: 0x%08x => 0x%08x\n", __func__, addr, val);
|
||||
if (NVRAM->type == 8 &&
|
||||
(addr >= 0x1ff0 && addr <= 0x1ff7))
|
||||
|
||||
/* check for NVRAM access */
|
||||
if ((NVRAM->type == 2 && addr < 0x7f8) ||
|
||||
(NVRAM->type == 8 && addr < 0x1ff8) ||
|
||||
(NVRAM->type == 59 && addr < 0x1ff0))
|
||||
goto do_write;
|
||||
|
||||
/* TOD access */
|
||||
switch (addr) {
|
||||
case 0x1FF0:
|
||||
/* flags register : read-only */
|
||||
@ -270,10 +275,12 @@ void m48t59_write (void *opaque, uint32_t addr, uint32_t val)
|
||||
set_up_watchdog(NVRAM, val);
|
||||
break;
|
||||
case 0x1FF8:
|
||||
case 0x07F8:
|
||||
/* control */
|
||||
NVRAM->buffer[0x1FF8] = (val & ~0xA0) | 0x90;
|
||||
NVRAM->buffer[addr] = (val & ~0xA0) | 0x90;
|
||||
break;
|
||||
case 0x1FF9:
|
||||
case 0x07F9:
|
||||
/* seconds (BCD) */
|
||||
tmp = fromBCD(val & 0x7F);
|
||||
if (tmp >= 0 && tmp <= 59) {
|
||||
@ -281,7 +288,7 @@ void m48t59_write (void *opaque, uint32_t addr, uint32_t val)
|
||||
tm.tm_sec = tmp;
|
||||
set_time(NVRAM, &tm);
|
||||
}
|
||||
if ((val & 0x80) ^ (NVRAM->buffer[0x1FF9] & 0x80)) {
|
||||
if ((val & 0x80) ^ (NVRAM->buffer[addr] & 0x80)) {
|
||||
if (val & 0x80) {
|
||||
NVRAM->stop_time = time(NULL);
|
||||
} else {
|
||||
@ -289,9 +296,10 @@ void m48t59_write (void *opaque, uint32_t addr, uint32_t val)
|
||||
NVRAM->stop_time = 0;
|
||||
}
|
||||
}
|
||||
NVRAM->buffer[0x1FF9] = val & 0x80;
|
||||
NVRAM->buffer[addr] = val & 0x80;
|
||||
break;
|
||||
case 0x1FFA:
|
||||
case 0x07FA:
|
||||
/* minutes (BCD) */
|
||||
tmp = fromBCD(val & 0x7F);
|
||||
if (tmp >= 0 && tmp <= 59) {
|
||||
@ -301,6 +309,7 @@ void m48t59_write (void *opaque, uint32_t addr, uint32_t val)
|
||||
}
|
||||
break;
|
||||
case 0x1FFB:
|
||||
case 0x07FB:
|
||||
/* hours (BCD) */
|
||||
tmp = fromBCD(val & 0x3F);
|
||||
if (tmp >= 0 && tmp <= 23) {
|
||||
@ -310,14 +319,16 @@ void m48t59_write (void *opaque, uint32_t addr, uint32_t val)
|
||||
}
|
||||
break;
|
||||
case 0x1FFC:
|
||||
case 0x07FC:
|
||||
/* day of the week / century */
|
||||
tmp = fromBCD(val & 0x07);
|
||||
get_time(NVRAM, &tm);
|
||||
tm.tm_wday = tmp;
|
||||
set_time(NVRAM, &tm);
|
||||
NVRAM->buffer[0x1FFC] = val & 0x40;
|
||||
NVRAM->buffer[addr] = val & 0x40;
|
||||
break;
|
||||
case 0x1FFD:
|
||||
case 0x07FD:
|
||||
/* date */
|
||||
tmp = fromBCD(val & 0x1F);
|
||||
if (tmp != 0) {
|
||||
@ -327,6 +338,7 @@ void m48t59_write (void *opaque, uint32_t addr, uint32_t val)
|
||||
}
|
||||
break;
|
||||
case 0x1FFE:
|
||||
case 0x07FE:
|
||||
/* month */
|
||||
tmp = fromBCD(val & 0x1F);
|
||||
if (tmp >= 1 && tmp <= 12) {
|
||||
@ -336,6 +348,7 @@ void m48t59_write (void *opaque, uint32_t addr, uint32_t val)
|
||||
}
|
||||
break;
|
||||
case 0x1FFF:
|
||||
case 0x07FF:
|
||||
/* year */
|
||||
tmp = fromBCD(val);
|
||||
if (tmp >= 0 && tmp <= 99) {
|
||||
@ -367,9 +380,13 @@ uint32_t m48t59_read (void *opaque, uint32_t addr)
|
||||
struct tm tm;
|
||||
uint32_t retval = 0xFF;
|
||||
|
||||
if (NVRAM->type == 8 &&
|
||||
(addr >= 0x1ff0 && addr <= 0x1ff7))
|
||||
/* check for NVRAM access */
|
||||
if ((NVRAM->type == 2 && addr < 0x078f) ||
|
||||
(NVRAM->type == 8 && addr < 0x1ff8) ||
|
||||
(NVRAM->type == 59 && addr < 0x1ff0))
|
||||
goto do_read;
|
||||
|
||||
/* TOD access */
|
||||
switch (addr) {
|
||||
case 0x1FF0:
|
||||
/* flags register */
|
||||
@ -398,39 +415,47 @@ uint32_t m48t59_read (void *opaque, uint32_t addr)
|
||||
set_up_watchdog(NVRAM, NVRAM->buffer[0x1FF7]);
|
||||
goto do_read;
|
||||
case 0x1FF8:
|
||||
case 0x07F8:
|
||||
/* control */
|
||||
goto do_read;
|
||||
case 0x1FF9:
|
||||
case 0x07F9:
|
||||
/* seconds (BCD) */
|
||||
get_time(NVRAM, &tm);
|
||||
retval = (NVRAM->buffer[0x1FF9] & 0x80) | toBCD(tm.tm_sec);
|
||||
retval = (NVRAM->buffer[addr] & 0x80) | toBCD(tm.tm_sec);
|
||||
break;
|
||||
case 0x1FFA:
|
||||
case 0x07FA:
|
||||
/* minutes (BCD) */
|
||||
get_time(NVRAM, &tm);
|
||||
retval = toBCD(tm.tm_min);
|
||||
break;
|
||||
case 0x1FFB:
|
||||
case 0x07FB:
|
||||
/* hours (BCD) */
|
||||
get_time(NVRAM, &tm);
|
||||
retval = toBCD(tm.tm_hour);
|
||||
break;
|
||||
case 0x1FFC:
|
||||
case 0x07FC:
|
||||
/* day of the week / century */
|
||||
get_time(NVRAM, &tm);
|
||||
retval = NVRAM->buffer[0x1FFC] | tm.tm_wday;
|
||||
retval = NVRAM->buffer[addr] | tm.tm_wday;
|
||||
break;
|
||||
case 0x1FFD:
|
||||
case 0x07FD:
|
||||
/* date */
|
||||
get_time(NVRAM, &tm);
|
||||
retval = toBCD(tm.tm_mday);
|
||||
break;
|
||||
case 0x1FFE:
|
||||
case 0x07FE:
|
||||
/* month */
|
||||
get_time(NVRAM, &tm);
|
||||
retval = toBCD(tm.tm_mon + 1);
|
||||
break;
|
||||
case 0x1FFF:
|
||||
case 0x07FF:
|
||||
/* year */
|
||||
get_time(NVRAM, &tm);
|
||||
if (NVRAM->type == 8)
|
||||
@ -650,7 +675,7 @@ m48t59_t *m48t59_init (qemu_irq IRQ, target_phys_addr_t mem_base,
|
||||
}
|
||||
if (mem_base != 0) {
|
||||
s->mem_index = cpu_register_io_memory(0, nvram_read, nvram_write, s);
|
||||
cpu_register_physical_memory(mem_base, 0x4000, s->mem_index);
|
||||
cpu_register_physical_memory(mem_base, size, s->mem_index);
|
||||
}
|
||||
if (type == 59) {
|
||||
s->alrm_timer = qemu_new_timer(vm_clock, &alarm_cb, s);
|
||||
|
||||
@ -623,7 +623,7 @@ static void sun4c_hw_init(const struct hwdef *hwdef, int RAM_size,
|
||||
}
|
||||
|
||||
nvram = m48t59_init(slavio_irq[0], hwdef->nvram_base, 0,
|
||||
hwdef->nvram_size, 8);
|
||||
hwdef->nvram_size, 2);
|
||||
|
||||
slavio_serial_ms_kbd_init(hwdef->ms_kb_base, slavio_irq[hwdef->ms_kb_irq],
|
||||
nographic);
|
||||
@ -848,7 +848,7 @@ static const struct hwdef hwdefs[] = {
|
||||
.sun4c_intctl_base = 0xf5000000,
|
||||
.sun4c_counter_base = 0xf3000000,
|
||||
.vram_size = 0x00100000,
|
||||
.nvram_size = 0x2000, // XXX 0x800,
|
||||
.nvram_size = 0x800,
|
||||
.esp_irq = 2,
|
||||
.le_irq = 3,
|
||||
.clock_irq = 5,
|
||||
|
||||
Loading…
Reference in New Issue
Block a user