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authorBernhard Beschow <shentey@gmail.com>2025-02-23 12:46:58 +0100
committerPeter Maydell <peter.maydell@linaro.org>2025-02-25 17:02:34 +0000
commitfd1deb5301f89eb86c0eecadb670beb98aa74ac5 (patch)
tree79694a9beeddbc659101d895f376a1ccd7e1f069 /hw/arm/fsl-imx8mp.c
parenta81193c3e9a8220862120d8d4114191f3899f4b3 (diff)
downloadfocaccia-qemu-fd1deb5301f89eb86c0eecadb670beb98aa74ac5.tar.gz
focaccia-qemu-fd1deb5301f89eb86c0eecadb670beb98aa74ac5.zip
hw/arm/fsl-imx8mp: Add PCIe support
Linux checks for the PLLs in the PHY to be locked, so implement a model
emulating that.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-id: 20250223114708.1780-9-shentey@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw/arm/fsl-imx8mp.c')
-rw-r--r--hw/arm/fsl-imx8mp.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/hw/arm/fsl-imx8mp.c b/hw/arm/fsl-imx8mp.c
index da9eaeb6ff..1ee681ac1d 100644
--- a/hw/arm/fsl-imx8mp.c
+++ b/hw/arm/fsl-imx8mp.c
@@ -212,6 +212,10 @@ static void fsl_imx8mp_init(Object *obj)
         g_autofree char *name = g_strdup_printf("usdhc%d", i + 1);
         object_initialize_child(obj, name, &s->usdhc[i], TYPE_IMX_USDHC);
     }
+
+    object_initialize_child(obj, "pcie", &s->pcie, TYPE_DESIGNWARE_PCIE_HOST);
+    object_initialize_child(obj, "pcie_phy", &s->pcie_phy,
+                            TYPE_FSL_IMX8M_PCIE_PHY);
 }
 
 static void fsl_imx8mp_realize(DeviceState *dev, Error **errp)
@@ -380,6 +384,30 @@ static void fsl_imx8mp_realize(DeviceState *dev, Error **errp)
     sysbus_mmio_map(SYS_BUS_DEVICE(&s->snvs), 0,
                     fsl_imx8mp_memmap[FSL_IMX8MP_SNVS_HP].addr);
 
+    /* PCIe */
+    if (!sysbus_realize(SYS_BUS_DEVICE(&s->pcie), errp)) {
+        return;
+    }
+    sysbus_mmio_map(SYS_BUS_DEVICE(&s->pcie), 0,
+                    fsl_imx8mp_memmap[FSL_IMX8MP_PCIE1].addr);
+
+    sysbus_connect_irq(SYS_BUS_DEVICE(&s->pcie), 0,
+                       qdev_get_gpio_in(gicdev, FSL_IMX8MP_PCI_INTA_IRQ));
+    sysbus_connect_irq(SYS_BUS_DEVICE(&s->pcie), 1,
+                       qdev_get_gpio_in(gicdev, FSL_IMX8MP_PCI_INTB_IRQ));
+    sysbus_connect_irq(SYS_BUS_DEVICE(&s->pcie), 2,
+                       qdev_get_gpio_in(gicdev, FSL_IMX8MP_PCI_INTC_IRQ));
+    sysbus_connect_irq(SYS_BUS_DEVICE(&s->pcie), 3,
+                       qdev_get_gpio_in(gicdev, FSL_IMX8MP_PCI_INTD_IRQ));
+    sysbus_connect_irq(SYS_BUS_DEVICE(&s->pcie), 4,
+                       qdev_get_gpio_in(gicdev, FSL_IMX8MP_PCI_MSI_IRQ));
+
+    if (!sysbus_realize(SYS_BUS_DEVICE(&s->pcie_phy), errp)) {
+        return;
+    }
+    sysbus_mmio_map(SYS_BUS_DEVICE(&s->pcie_phy), 0,
+                    fsl_imx8mp_memmap[FSL_IMX8MP_PCIE_PHY1].addr);
+
     /* Unimplemented devices */
     for (i = 0; i < ARRAY_SIZE(fsl_imx8mp_memmap); i++) {
         switch (i) {
@@ -387,6 +415,8 @@ static void fsl_imx8mp_realize(DeviceState *dev, Error **errp)
         case FSL_IMX8MP_CCM:
         case FSL_IMX8MP_GIC_DIST:
         case FSL_IMX8MP_GIC_REDIST:
+        case FSL_IMX8MP_PCIE1:
+        case FSL_IMX8MP_PCIE_PHY1:
         case FSL_IMX8MP_RAM:
         case FSL_IMX8MP_SNVS_HP:
         case FSL_IMX8MP_UART1 ... FSL_IMX8MP_UART4: