This enables support for Designware PCI Express Controller emulation It provides a controlled environment to debug the linux pci subsystem
Signed-off-by: Gaurav Sharma <[email protected]> --- docs/system/arm/imx8mm-evk.rst | 1 + hw/arm/Kconfig | 3 +++ hw/arm/fsl-imx8mm.c | 30 ++++++++++++++++++++++++++++++ include/hw/arm/fsl-imx8mm.h | 10 ++++++++++ 4 files changed, 44 insertions(+) diff --git a/docs/system/arm/imx8mm-evk.rst b/docs/system/arm/imx8mm-evk.rst index de9d1bd4de..3413ac097b 100644 --- a/docs/system/arm/imx8mm-evk.rst +++ b/docs/system/arm/imx8mm-evk.rst @@ -13,6 +13,7 @@ The ``imx8mm-evk`` machine implements the following devices: * Generic Interrupt Controller (GICv3) * 4 UARTs * 3 USDHC Storage Controllers + * 1 Designware PCI Express Controller * Secure Non-Volatile Storage (SNVS) including an RTC * Clock Tree diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig index b5eb6553f5..6df1478c4f 100644 --- a/hw/arm/Kconfig +++ b/hw/arm/Kconfig @@ -628,11 +628,14 @@ config FSL_IMX8MP_EVK config FSL_IMX8MM bool + imply PCI_DEVICES select ARM_GIC select FSL_IMX8MM_ANALOG select FSL_IMX8MM_CCM select IMX select SDHCI + select PCI_EXPRESS_DESIGNWARE + select PCI_EXPRESS_FSL_IMX8M_PHY config FSL_IMX8MM_EVK bool diff --git a/hw/arm/fsl-imx8mm.c b/hw/arm/fsl-imx8mm.c index 0c42fd16f2..09e16786bc 100644 --- a/hw/arm/fsl-imx8mm.c +++ b/hw/arm/fsl-imx8mm.c @@ -181,6 +181,10 @@ static void fsl_imx8mm_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_imx8mm_realize(DeviceState *dev, Error **errp) @@ -373,6 +377,30 @@ 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); + /* 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 = 0; i < ARRAY_SIZE(fsl_imx8mm_memmap); i++) { switch (i) { @@ -380,6 +408,8 @@ 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_SNVS_HP: case FSL_IMX8MM_UART1 ... FSL_IMX8MM_UART4: diff --git a/include/hw/arm/fsl-imx8mm.h b/include/hw/arm/fsl-imx8mm.h index 985a0a5571..74a1a1349d 100644 --- a/include/hw/arm/fsl-imx8mm.h +++ b/include/hw/arm/fsl-imx8mm.h @@ -15,6 +15,8 @@ #include "hw/misc/imx7_snvs.h" #include "hw/misc/imx8mm_analog.h" #include "hw/misc/imx8mm_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" @@ -42,6 +44,8 @@ struct FslImx8mmState { IMX7SNVSState snvs; IMXSerialState uart[FSL_IMX8MM_NUM_UARTS]; SDHCIState usdhc[FSL_IMX8MM_NUM_USDHCS]; + DesignwarePCIEHost pcie; + FslImx8mPciePhyState pcie_phy; }; enum FslImx8mmMemoryRegions { @@ -164,6 +168,12 @@ enum FslImx8mmIrqs { FSL_IMX8MM_UART2_IRQ = 27, FSL_IMX8MM_UART3_IRQ = 28, FSL_IMX8MM_UART4_IRQ = 29, + + FSL_IMX8MM_PCI_INTA_IRQ = 122, + FSL_IMX8MM_PCI_INTB_IRQ = 123, + FSL_IMX8MM_PCI_INTC_IRQ = 124, + FSL_IMX8MM_PCI_INTD_IRQ = 125, + FSL_IMX8MM_PCI_MSI_IRQ = 127, }; #endif /* FSL_IMX8MM_H */ -- 2.34.1
