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Mon, 27 Apr 2026 05:47:46 -0700 (PDT) From: Peter Maydell To: qemu-devel@nongnu.org Subject: [PULL 08/63] hw/arm/fsl-imx8mm: Add PCIe support Date: Mon, 27 Apr 2026 13:46:42 +0100 Message-ID: <20260427124738.966578-9-peter.maydell@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260427124738.966578-1-peter.maydell@linaro.org> References: <20260427124738.966578-1-peter.maydell@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists1p.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::334; envelope-from=peter.maydell@linaro.org; helo=mail-wm1-x334.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1777294234540154100 Content-Type: text/plain; charset="utf-8" From: Gaurav Sharma This enables support for Designware PCI Express Controller emulation It provides a controlled environment to debug the linux pci subsystem Reviewed-by: Philippe Mathieu-Daude Reviewed-by: Peter Maydell Reviewed-by: Bernhard Beschow Signed-off-by: Gaurav Sharma Signed-off-by: Peter Maydell --- hw/arm/Kconfig | 3 +++ hw/arm/fsl-imx8mm.c | 30 ++++++++++++++++++++++++++++++ include/hw/arm/fsl-imx8mm.h | 10 ++++++++++ 3 files changed, 43 insertions(+) diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig index 74e8c431a2..59d5aba2db 100644 --- a/hw/arm/Kconfig +++ b/hw/arm/Kconfig @@ -619,11 +619,14 @@ config FSL_IMX8MP_EVK =20 config FSL_IMX8MM bool + imply PCI_DEVICES select ARM_GIC select FSL_IMX8MP_ANALOG select FSL_IMX8MP_CCM select IMX select SDHCI + select PCI_EXPRESS_DESIGNWARE + select PCI_EXPRESS_FSL_IMX8M_PHY =20 config FSL_IMX8MM_EVK bool diff --git a/hw/arm/fsl-imx8mm.c b/hw/arm/fsl-imx8mm.c index 2a4d4d5e6d..633b121630 100644 --- a/hw/arm/fsl-imx8mm.c +++ b/hw/arm/fsl-imx8mm.c @@ -184,6 +184,10 @@ static void fsl_imx8mm_init(Object *obj) g_autofree char *name =3D 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_HO= ST); + object_initialize_child(obj, "pcie_phy", &s->pcie_phy, + TYPE_FSL_IMX8M_PCIE_PHY); } =20 static void fsl_imx8mm_realize(DeviceState *dev, Error **errp) @@ -388,6 +392,30 @@ static void fsl_imx8mm_realize(DeviceState *dev, Error= **errp) sysbus_mmio_map(SYS_BUS_DEVICE(&s->snvs), 0, fsl_imx8mm_memmap[FSL_IMX8MM_SNVS_HP].addr); =20 + /* PCIe */ + if (!sysbus_realize(SYS_BUS_DEVICE(&s->pcie), errp)) { + return; + } + sysbus_mmio_map(SYS_BUS_DEVICE(&s->pcie), 0, + fsl_imx8mm_memmap[FSL_IMX8MM_PCIE1].addr); + + sysbus_connect_irq(SYS_BUS_DEVICE(&s->pcie), 0, + qdev_get_gpio_in(gicdev, FSL_IMX8MM_PCI_INTA_IRQ)); + sysbus_connect_irq(SYS_BUS_DEVICE(&s->pcie), 1, + qdev_get_gpio_in(gicdev, FSL_IMX8MM_PCI_INTB_IRQ)); + sysbus_connect_irq(SYS_BUS_DEVICE(&s->pcie), 2, + qdev_get_gpio_in(gicdev, FSL_IMX8MM_PCI_INTC_IRQ)); + sysbus_connect_irq(SYS_BUS_DEVICE(&s->pcie), 3, + qdev_get_gpio_in(gicdev, FSL_IMX8MM_PCI_INTD_IRQ)); + sysbus_connect_irq(SYS_BUS_DEVICE(&s->pcie), 4, + qdev_get_gpio_in(gicdev, FSL_IMX8MM_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_imx8mm_memmap[FSL_IMX8MM_PCIE_PHY1].addr); + /* Unimplemented devices */ for (i =3D 0; i < ARRAY_SIZE(fsl_imx8mm_memmap); i++) { switch (i) { @@ -395,6 +423,8 @@ static void fsl_imx8mm_realize(DeviceState *dev, Error = **errp) case FSL_IMX8MM_CCM: case FSL_IMX8MM_GIC_DIST: case FSL_IMX8MM_GIC_REDIST: + case FSL_IMX8MM_PCIE1: + case FSL_IMX8MM_PCIE_PHY1: case FSL_IMX8MM_RAM: case FSL_IMX8MM_OCRAM: case FSL_IMX8MM_SNVS_HP: diff --git a/include/hw/arm/fsl-imx8mm.h b/include/hw/arm/fsl-imx8mm.h index 93a30a2f55..3181c02574 100644 --- a/include/hw/arm/fsl-imx8mm.h +++ b/include/hw/arm/fsl-imx8mm.h @@ -16,6 +16,8 @@ #include "hw/misc/imx7_snvs.h" #include "hw/misc/imx8mp_analog.h" #include "hw/misc/imx8mp_ccm.h" +#include "hw/pci-host/designware.h" +#include "hw/pci-host/fsl_imx8m_phy.h" #include "hw/sd/sdhci.h" #include "qom/object.h" #include "qemu/units.h" @@ -44,6 +46,8 @@ struct FslImx8mmState { IMXSerialState uart[FSL_IMX8MM_NUM_UARTS]; MemoryRegion ocram; SDHCIState usdhc[FSL_IMX8MM_NUM_USDHCS]; + DesignwarePCIEHost pcie; + FslImx8mPciePhyState pcie_phy; }; =20 enum FslImx8mmMemoryRegions { @@ -166,6 +170,12 @@ enum FslImx8mmIrqs { FSL_IMX8MM_UART2_IRQ =3D 27, FSL_IMX8MM_UART3_IRQ =3D 28, FSL_IMX8MM_UART4_IRQ =3D 29, + + FSL_IMX8MM_PCI_INTA_IRQ =3D 122, + FSL_IMX8MM_PCI_INTB_IRQ =3D 123, + FSL_IMX8MM_PCI_INTC_IRQ =3D 124, + FSL_IMX8MM_PCI_INTD_IRQ =3D 125, + FSL_IMX8MM_PCI_MSI_IRQ =3D 127, }; =20 #endif /* FSL_IMX8MM_H */ --=20 2.43.0