diff options
| -rw-r--r-- | hw/char/pl011.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/hw/char/pl011.c b/hw/char/pl011.c index 8103e2eeb0..11c3a75fc1 100644 --- a/hw/char/pl011.c +++ b/hw/char/pl011.c @@ -20,6 +20,7 @@ typedef struct PL011State { uint32_t readbuff; uint32_t flags; uint32_t lcr; + uint32_t rsr; uint32_t cr; uint32_t dmacr; uint32_t int_enabled; @@ -81,13 +82,14 @@ static uint64_t pl011_read(void *opaque, hwaddr offset, } if (s->read_count == s->read_trigger - 1) s->int_level &= ~ PL011_INT_RX; + s->rsr = c >> 8; pl011_update(s); if (s->chr) { qemu_chr_accept_input(s->chr); } return c; - case 1: /* UARTCR */ - return 0; + case 1: /* UARTRSR */ + return s->rsr; case 6: /* UARTFR */ return s->flags; case 8: /* UARTILPR */ @@ -146,8 +148,8 @@ static void pl011_write(void *opaque, hwaddr offset, s->int_level |= PL011_INT_TX; pl011_update(s); break; - case 1: /* UARTCR */ - s->cr = value; + case 1: /* UARTRSR/UARTECR */ + s->rsr = 0; break; case 6: /* UARTFR */ /* Writes to Flag register are ignored. */ @@ -247,13 +249,14 @@ static const MemoryRegionOps pl011_ops = { static const VMStateDescription vmstate_pl011 = { .name = "pl011", - .version_id = 1, - .minimum_version_id = 1, - .minimum_version_id_old = 1, + .version_id = 2, + .minimum_version_id = 2, + .minimum_version_id_old = 2, .fields = (VMStateField[]) { VMSTATE_UINT32(readbuff, PL011State), VMSTATE_UINT32(flags, PL011State), VMSTATE_UINT32(lcr, PL011State), + VMSTATE_UINT32(rsr, PL011State), VMSTATE_UINT32(cr, PL011State), VMSTATE_UINT32(dmacr, PL011State), VMSTATE_UINT32(int_enabled, PL011State), |