aspeed/scu: Fix valid access size on AST2400
The read access size of the SCU registers can be 1/2/4 bytes and write
is 4 bytes and all Aspeed models would need a .valid.accepts() handler.
For the moment, set the min access size to 1 byte to cover both read
and write operations on the AST2400 but keep the min access size of
the other SoCs to 4 bytes as this is an unusual access size.
This fixes support for some old firmware doing 2 bytes reads on the
AST2400 SoC.
Reported-by: Erik Smit <erik.lucas.smit@gmail.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Message-Id: <20200819100956.2216690-5-clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
diff --git a/hw/misc/aspeed_scu.c b/hw/misc/aspeed_scu.c
index ec4fef9..7642224 100644
--- a/hw/misc/aspeed_scu.c
+++ b/hw/misc/aspeed_scu.c
@@ -328,9 +328,10 @@
.read = aspeed_scu_read,
.write = aspeed_ast2400_scu_write,
.endianness = DEVICE_LITTLE_ENDIAN,
- .valid.min_access_size = 4,
- .valid.max_access_size = 4,
- .valid.unaligned = false,
+ .valid = {
+ .min_access_size = 1,
+ .max_access_size = 4,
+ },
};
static const MemoryRegionOps aspeed_ast2500_scu_ops = {
