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authorCédric Le Goater <clg@redhat.com>2024-03-19 08:33:20 +0100
committerCédric Le Goater <clg@redhat.com>2024-03-19 11:58:15 +0100
commita7538ca0791880b6aeb2cc4cc8c00305e2d975f8 (patch)
treebcdfc2b93d2987cad28387aea709117e7630b173 /hw/arm
parent5b2b9450a2f83668bedd092b43233ad35f0d40bd (diff)
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aspeed/smc: Only wire flash devices at reset
The Aspeed machines have many Static Memory Controllers (SMC), up to 8, which can only drive flash memory devices. Commit 27a2c66c92ec ("aspeed/smc: Wire CS lines at reset") tried to ease the definitions of these devices by allowing flash devices from the command line to be attached to a SSI bus. For that, the wiring of the CS lines of the Aspeed SMC controller was moved at reset. Two assumptions are made though, first that the device has a SSI_GPIO_CS GPIO line, which is not always the case, and second that it is a flash device. Correct this problem by ensuring that the devices attached to the bus are of the correct flash type. This fixes a QEMU abort when devices without a CS line, such as the max111x, are passed on the command line. While at it, export TYPE_M25P80 used in the Xilinx Versal Virtual machine. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2228 Fixes: 27a2c66c92ec ("aspeed/smc: Wire CS lines at reset") Reported-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Tested-by: Thomas Huth <thuth@redhat.com> [ clg: minor fixes in the commit log ] Signed-off-by: Cédric Le Goater <clg@redhat.com>
Diffstat (limited to 'hw/arm')
-rw-r--r--hw/arm/xlnx-versal-virt.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/hw/arm/xlnx-versal-virt.c b/hw/arm/xlnx-versal-virt.c
index bfaed1a..962f98f 100644
--- a/hw/arm/xlnx-versal-virt.c
+++ b/hw/arm/xlnx-versal-virt.c
@@ -13,6 +13,7 @@
#include "qemu/error-report.h"
#include "qapi/error.h"
#include "sysemu/device_tree.h"
+#include "hw/block/flash.h"
#include "hw/boards.h"
#include "hw/sysbus.h"
#include "hw/arm/fdt.h"
@@ -759,7 +760,7 @@ static void versal_virt_init(MachineState *machine)
flash_klass = object_class_by_name(s->ospi_model);
if (!flash_klass ||
object_class_is_abstract(flash_klass) ||
- !object_class_dynamic_cast(flash_klass, "m25p80-generic")) {
+ !object_class_dynamic_cast(flash_klass, TYPE_M25P80)) {
error_setg(&error_fatal, "'%s' is either abstract or"
" not a subtype of m25p80", s->ospi_model);
return;