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| author | Helge Deller <deller@gmx.de> | 2024-02-03 01:04:45 +0100 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2024-02-11 13:20:23 +0100 |
| commit | 32d26ea407cadf6efbb46c972caf8594a45c4c81 (patch) | |
| tree | ebd383fefa07766af233abe6cace9ba09dbbd5af | |
| parent | 9ccbe394d2818002fce6c83e801990c6fe18a6c9 (diff) | |
| download | qemu-32d26ea407cadf6efbb46c972caf8594a45c4c81.zip qemu-32d26ea407cadf6efbb46c972caf8594a45c4c81.tar.gz qemu-32d26ea407cadf6efbb46c972caf8594a45c4c81.tar.bz2 | |
lasi: Add reset I/O ports for LASI audio and FDC
Linux writes zeroes at bootup into the default ports for LASI audio and
LASI floppy controller to reset those devices. Allow writing to those
registers to avoid HPMCs.
Signed-off-by: Helge Deller <deller@gmx.de>
| -rw-r--r-- | hw/misc/lasi.c | 11 | ||||
| -rw-r--r-- | include/hw/misc/lasi.h | 2 |
2 files changed, 13 insertions, 0 deletions
diff --git a/hw/misc/lasi.c b/hw/misc/lasi.c index 9cfa5bb..970fc98 100644 --- a/hw/misc/lasi.c +++ b/hw/misc/lasi.c @@ -36,10 +36,13 @@ static bool lasi_chip_mem_valid(void *opaque, hwaddr addr, case LASI_IAR: case LASI_LPT: + case LASI_AUDIO: + case LASI_AUDIO + 4: case LASI_UART: case LASI_LAN: case LASI_LAN + 12: /* LASI LAN MAC */ case LASI_RTC: + case LASI_FDC: case LASI_PCR ... LASI_AMR: ret = true; @@ -80,6 +83,7 @@ static MemTxResult lasi_chip_read_with_attrs(void *opaque, hwaddr addr, case LASI_UART: case LASI_LAN: case LASI_LAN + 12: + case LASI_FDC: val = 0; break; case LASI_RTC: @@ -145,12 +149,19 @@ static MemTxResult lasi_chip_write_with_attrs(void *opaque, hwaddr addr, case LASI_LPT: /* XXX: reset parallel port */ break; + case LASI_AUDIO: + case LASI_AUDIO + 4: + /* XXX: reset audio port */ + break; case LASI_UART: /* XXX: reset serial port */ break; case LASI_LAN: /* XXX: reset LAN card */ break; + case LASI_FDC: + /* XXX: reset Floppy controller */ + break; case LASI_RTC: s->rtc_ref = val - time(NULL); break; diff --git a/include/hw/misc/lasi.h b/include/hw/misc/lasi.h index 0a8c735..f01c0f6 100644 --- a/include/hw/misc/lasi.h +++ b/include/hw/misc/lasi.h @@ -26,9 +26,11 @@ OBJECT_DECLARE_SIMPLE_TYPE(LasiState, LASI_CHIP) #define LASI_IAR 0x10 #define LASI_LPT 0x02000 +#define LASI_AUDIO 0x04000 #define LASI_UART 0x05000 #define LASI_LAN 0x07000 #define LASI_RTC 0x09000 +#define LASI_FDC 0x0A000 #define LASI_PCR 0x0C000 /* LASI Power Control register */ #define LASI_ERRLOG 0x0C004 /* LASI Error Logging register */ |