aboutsummaryrefslogtreecommitdiff
path: root/hw/omap_i2c.c
diff options
context:
space:
mode:
authorbalrog <balrog@c046a42c-6fe2-441c-8c8c-71466251a162>2008-04-14 21:05:22 +0000
committerbalrog <balrog@c046a42c-6fe2-441c-8c8c-71466251a162>2008-04-14 21:05:22 +0000
commit827df9f3c5fdea53531acf02b2db0afb9858f053 (patch)
tree95cb9c8d0ab76f1155f25df9cda123ce97cb0643 /hw/omap_i2c.c
parentf93eb9ff66868df42f8433d16f2dc48a4af2490f (diff)
Add basic OMAP2 chip support.
Add the OMAP242x (arm1136 core) initialisation with basic on-chip peripherals and update OMAP1 peripherals which are re-used in OMAP2. Make palmte.c and sd.c errors go to stderr. Allow disabling SD chipselect. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4213 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'hw/omap_i2c.c')
-rw-r--r--hw/omap_i2c.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/hw/omap_i2c.c b/hw/omap_i2c.c
index de63309ca3..9915676b1f 100644
--- a/hw/omap_i2c.c
+++ b/hw/omap_i2c.c
@@ -150,6 +150,8 @@ static void omap_i2c_fifo_run(struct omap_i2c_s *s)
}
if (ack && s->count_cur)
s->stat |= 1 << 4; /* XRDY */
+ else
+ s->stat &= ~(1 << 4); /* XRDY */
if (!s->count_cur) {
s->stat |= 1 << 2; /* ARDY */
s->control &= ~(1 << 10); /* MST */
@@ -161,6 +163,8 @@ static void omap_i2c_fifo_run(struct omap_i2c_s *s)
}
if (s->rxlen)
s->stat |= 1 << 3; /* RRDY */
+ else
+ s->stat &= ~(1 << 3); /* RRDY */
}
if (!s->count_cur) {
if ((s->control >> 1) & 1) { /* STP */
@@ -321,7 +325,8 @@ static void omap_i2c_write(void *opaque, target_phys_addr_t addr,
return;
}
- s->stat &= ~(value & 0x3f);
+ /* RRDY and XRDY are reset by hardware. (in all versions???) */
+ s->stat &= ~(value & 0x27);
omap_i2c_interrupts_update(s);
break;
@@ -376,11 +381,13 @@ static void omap_i2c_write(void *opaque, target_phys_addr_t addr,
break;
}
if ((value & (1 << 15)) && !(value & (1 << 10))) { /* MST */
- printf("%s: I^2C slave mode not supported\n", __FUNCTION__);
+ fprintf(stderr, "%s: I^2C slave mode not supported\n",
+ __FUNCTION__);
break;
}
if ((value & (1 << 15)) && value & (1 << 8)) { /* XA */
- printf("%s: 10-bit addressing mode not supported\n", __FUNCTION__);
+ fprintf(stderr, "%s: 10-bit addressing mode not supported\n",
+ __FUNCTION__);
break;
}
if ((value & (1 << 15)) && value & (1 << 0)) { /* STT */
@@ -427,7 +434,7 @@ static void omap_i2c_write(void *opaque, target_phys_addr_t addr,
omap_i2c_interrupts_update(s);
}
if (value & (1 << 15)) /* ST_EN */
- printf("%s: System Test not supported\n", __FUNCTION__);
+ fprintf(stderr, "%s: System Test not supported\n", __FUNCTION__);
break;
default: