On 03/07/2021 15:19, Philippe Mathieu-Daudé wrote:
Per the DP83932C datasheet from July 1995:1. Functional Description 1.3 DATA WIDTH AND BYTE ORDERING The SONIC can be programmed to operate with either 32-bit or 16-bit wide memory. Restrict the memory bus to reject 8/64-bit accesses. Signed-off-by: Philippe Mathieu-Daudé <f4...@amsat.org> --- hw/net/dp8393x.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/hw/net/dp8393x.c b/hw/net/dp8393x.c index d16ade2b198..c9b478c127c 100644 --- a/hw/net/dp8393x.c +++ b/hw/net/dp8393x.c @@ -695,6 +695,8 @@ static const MemoryRegionOps dp8393x_ops = { .write = dp8393x_write, .impl.min_access_size = 2, .impl.max_access_size = 2, + .valid.min_access_size = 2, + .valid.max_access_size = 4, .endianness = DEVICE_NATIVE_ENDIAN, };
Unfortunately this patch breaks MacOS - it seems very early in startup the MacOS toolbox probes for the presence of the network adapter using single byte accesses which are rejected by this change :(
I'd suggest that we simply drop this patch. ATB, Mark.
