[PULL 32/45] hw/arm: Add memory region for BCM2837 RPiVid ASB

Maintainers: Paolo Bonzini <pbonzini@redhat.com>, "Daniel P. Berrangé" <berrange@redhat.com>, Eduardo Habkost <eduardo@habkost.net>, Peter Maydell <peter.maydell@linaro.org>, "Philippe Mathieu-Daudé" <philmd@linaro.org>, Radoslaw Biernacki <rad@semihalf.com>, Leif Lindholm <quic_llindhol@quicinc.com>, Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>, Arnaud Minier <arnaud.minier@telecom-paris.fr>, "Inès Varhol" <ines.varhol@telecom-paris.fr>, Alistair Francis <alistair@alistair23.me>, "Edgar E. Iglesias" <edgar.iglesias@gmail.com>, Kevin Wolf <kwolf@redhat.com>, Hanna Reitz <hreitz@redhat.com>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Yanan Wang <wangyanan55@huawei.com>, Francisco Iglesias <francisco.iglesias@xilinx.com>, "Gonglei (Arei)" <arei.gonglei@huawei.com>, Cleber Rosa <crosa@redhat.com>, Wainer dos Santos Moschetta <wainersm@redhat.com>, Beraldo Leal <bleal@redhat.com>, Thomas Huth <thuth@redhat.com>, Laurent Vivier <lvivier@redhat.com>
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[PULL 32/45] hw/arm: Add memory region for BCM2837 RPiVid ASB
Posted by Peter Maydell 9 months ago
From: Sergey Kambalin <serg.oker@gmail.com>

Signed-off-by: Sergey Kambalin <sergey.kambalin@auriga.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20240226000259.2752893-13-sergey.kambalin@auriga.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 include/hw/arm/bcm2838_peripherals.h | 2 ++
 include/hw/arm/raspi_platform.h      | 2 +-
 hw/arm/bcm2838_peripherals.c         | 3 +++
 3 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/include/hw/arm/bcm2838_peripherals.h b/include/hw/arm/bcm2838_peripherals.h
index 86b0d96944e..af085934c92 100644
--- a/include/hw/arm/bcm2838_peripherals.h
+++ b/include/hw/arm/bcm2838_peripherals.h
@@ -69,6 +69,8 @@ struct BCM2838PeripheralState {
     OrIRQState mmc_irq_orgate;
     OrIRQState dma_7_8_irq_orgate;
     OrIRQState dma_9_10_irq_orgate;
+
+    UnimplementedDeviceState asb;
 };
 
 struct BCM2838PeripheralClass {
diff --git a/include/hw/arm/raspi_platform.h b/include/hw/arm/raspi_platform.h
index 0db146e5920..7bc4807fa51 100644
--- a/include/hw/arm/raspi_platform.h
+++ b/include/hw/arm/raspi_platform.h
@@ -73,7 +73,7 @@ uint64_t board_ram_size(uint32_t board_rev);
 #define MPHI_OFFSET             0x6000   /* Message-based Parallel Host Intf. */
 #define DMA_OFFSET              0x7000   /* DMA controller, channels 0-14 */
 #define ARBA_OFFSET             0x9000
-#define BRDG_OFFSET             0xa000
+#define BRDG_OFFSET             0xa000   /* RPiVid ASB for BCM2838 (BCM2711) */
 #define ARM_OFFSET              0xB000   /* ARM control block */
 #define ARMCTRL_OFFSET          (ARM_OFFSET + 0x000)
 #define ARMCTRL_IC_OFFSET       (ARM_OFFSET + 0x200) /* Interrupt controller */
diff --git a/hw/arm/bcm2838_peripherals.c b/hw/arm/bcm2838_peripherals.c
index 55ae56733f4..ca2f37b2606 100644
--- a/hw/arm/bcm2838_peripherals.c
+++ b/hw/arm/bcm2838_peripherals.c
@@ -185,6 +185,9 @@ static void bcm2838_peripherals_realize(DeviceState *dev, Error **errp)
         sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->gpio), 0));
 
     object_property_add_alias(OBJECT(s), "sd-bus", OBJECT(&s->gpio), "sd-bus");
+
+    /* BCM2838 RPiVid ASB must be mapped to prevent kernel crash */
+    create_unimp(s_base, &s->asb, "bcm2838-asb", BRDG_OFFSET, 0x24);
 }
 
 static void bcm2838_peripherals_class_init(ObjectClass *oc, void *data)
-- 
2.34.1