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charset="utf-8" This module emulates control registers of versal usb2 controller, this is a= dded just to make guest happy. In general this module would control the phy-reset signal from usb controller, data coherency of the transactions, signals the host system errors received from controller. Signed-off-by: Sai Pavan Boddu Signed-off-by: Vikram Garhwal --- hw/misc/meson.build | 1 + hw/misc/xlnx-versal-usb2-ctrl-regs.c | 222 +++++++++++++++++++++++= ++++ include/hw/misc/xlnx-versal-usb2-ctrl-regs.h | 45 ++++++ 3 files changed, 268 insertions(+) create mode 100644 hw/misc/xlnx-versal-usb2-ctrl-regs.c create mode 100644 include/hw/misc/xlnx-versal-usb2-ctrl-regs.h diff --git a/hw/misc/meson.build b/hw/misc/meson.build index 793d45b..b336dd1 100644 --- a/hw/misc/meson.build +++ b/hw/misc/meson.build @@ -109,3 +109,4 @@ specific_ss.add(when: 'CONFIG_MIPS_CPS', if_true: files= ('mips_cmgcr.c', 'mips_cp specific_ss.add(when: 'CONFIG_MIPS_ITU', if_true: files('mips_itu.c')) =20 specific_ss.add(when: 'CONFIG_SBSA_REF', if_true: files('sbsa_ec.c')) +specific_ss.add(when: 'CONFIG_XLNX_VERSAL', if_true: files('xlnx-versal-us= b2-ctrl-regs.c')) diff --git a/hw/misc/xlnx-versal-usb2-ctrl-regs.c b/hw/misc/xlnx-versal-usb= 2-ctrl-regs.c new file mode 100644 index 0000000..94fd7cf --- /dev/null +++ b/hw/misc/xlnx-versal-usb2-ctrl-regs.c @@ -0,0 +1,222 @@ +/* + * QEMU model of the VersalUsb2CtrlRegs Register control/Status block for + * USB2.0 controller + * + * This module should control phy_reset, permanent device plugs, frame len= gth + * time adjust & setting of coherency paths. None of which are emulated in + * present model. + * + * Copyright (c) 2020 Xilinx Inc. Vikram Garhwal + * + * Permission is hereby granted, free of charge, to any person obtaining a= copy + * of this software and associated documentation files (the "Software"), t= o deal + * in the Software without restriction, including without limitation the r= ights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or se= ll + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included= in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS= OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OT= HER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING= FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS = IN + * THE SOFTWARE. + */ + +#include "qemu/osdep.h" +#include "hw/sysbus.h" +#include "hw/irq.h" +#include "hw/register.h" +#include "qemu/bitops.h" +#include "qemu/log.h" +#include "qom/object.h" +#include "migration/vmstate.h" +#include "hw/misc/xlnx-versal-usb2-ctrl-regs.h" + +#ifndef XILINX_VERSAL_USB2_CTRL_REGS_ERR_DEBUG +#define XILINX_VERSAL_USB2_CTRL_REGS_ERR_DEBUG 0 +#endif + +REG32(BUS_FILTER, 0x30) + FIELD(BUS_FILTER, BYPASS, 0, 4) +REG32(PORT, 0x34) + FIELD(PORT, HOST_SMI_BAR_WR, 4, 1) + FIELD(PORT, HOST_SMI_PCI_CMD_REG_WR, 3, 1) + FIELD(PORT, HOST_MSI_ENABLE, 2, 1) + FIELD(PORT, PWR_CTRL_PRSNT, 1, 1) + FIELD(PORT, HUB_PERM_ATTACH, 0, 1) +REG32(JITTER_ADJUST, 0x38) + FIELD(JITTER_ADJUST, FLADJ, 0, 6) +REG32(BIGENDIAN, 0x40) + FIELD(BIGENDIAN, ENDIAN_GS, 0, 1) +REG32(COHERENCY, 0x44) + FIELD(COHERENCY, USB_COHERENCY, 0, 1) +REG32(XHC_BME, 0x48) + FIELD(XHC_BME, XHC_BME, 0, 1) +REG32(REG_CTRL, 0x60) + FIELD(REG_CTRL, SLVERR_ENABLE, 0, 1) +REG32(IR_STATUS, 0x64) + FIELD(IR_STATUS, HOST_SYS_ERR, 1, 1) + FIELD(IR_STATUS, ADDR_DEC_ERR, 0, 1) +REG32(IR_MASK, 0x68) + FIELD(IR_MASK, HOST_SYS_ERR, 1, 1) + FIELD(IR_MASK, ADDR_DEC_ERR, 0, 1) +REG32(IR_ENABLE, 0x6c) + FIELD(IR_ENABLE, HOST_SYS_ERR, 1, 1) + FIELD(IR_ENABLE, ADDR_DEC_ERR, 0, 1) +REG32(IR_DISABLE, 0x70) + FIELD(IR_DISABLE, HOST_SYS_ERR, 1, 1) + FIELD(IR_DISABLE, ADDR_DEC_ERR, 0, 1) +REG32(USB3, 0x78) + +static void ir_update_irq(VersalUsb2CtrlRegs *s) +{ + bool pending =3D s->regs[R_IR_STATUS] & ~s->regs[R_IR_MASK]; + qemu_set_irq(s->irq_ir, pending); +} + +static void ir_status_postw(RegisterInfo *reg, uint64_t val64) +{ + VersalUsb2CtrlRegs *s =3D XILINX_VERSAL_USB2_CTRL_REGS(reg->opaque); + /* + * TODO: This should also clear USBSTS.HSE field in USB XHCI register. + * May be combine both the modules. + */ + ir_update_irq(s); +} + +static uint64_t ir_enable_prew(RegisterInfo *reg, uint64_t val64) +{ + VersalUsb2CtrlRegs *s =3D XILINX_VERSAL_USB2_CTRL_REGS(reg->opaque); + uint32_t val =3D val64; + + s->regs[R_IR_MASK] &=3D ~val; + ir_update_irq(s); + return 0; +} + +static uint64_t ir_disable_prew(RegisterInfo *reg, uint64_t val64) +{ + VersalUsb2CtrlRegs *s =3D XILINX_VERSAL_USB2_CTRL_REGS(reg->opaque); + uint32_t val =3D val64; + + s->regs[R_IR_MASK] |=3D val; + ir_update_irq(s); + return 0; +} + +static const RegisterAccessInfo usb2_regs_regs_info[] =3D { + { .name =3D "BUS_FILTER", .addr =3D A_BUS_FILTER, + .rsvd =3D 0xfffffff0, + },{ .name =3D "PORT", .addr =3D A_PORT, + .rsvd =3D 0xffffffe0, + },{ .name =3D "JITTER_ADJUST", .addr =3D A_JITTER_ADJUST, + .reset =3D 0x20, + .rsvd =3D 0xffffffc0, + },{ .name =3D "BIGENDIAN", .addr =3D A_BIGENDIAN, + .rsvd =3D 0xfffffffe, + },{ .name =3D "COHERENCY", .addr =3D A_COHERENCY, + .rsvd =3D 0xfffffffe, + },{ .name =3D "XHC_BME", .addr =3D A_XHC_BME, + .reset =3D 0x1, + .rsvd =3D 0xfffffffe, + },{ .name =3D "REG_CTRL", .addr =3D A_REG_CTRL, + .rsvd =3D 0xfffffffe, + },{ .name =3D "IR_STATUS", .addr =3D A_IR_STATUS, + .rsvd =3D 0xfffffffc, + .w1c =3D 0x3, + .post_write =3D ir_status_postw, + },{ .name =3D "IR_MASK", .addr =3D A_IR_MASK, + .reset =3D 0x3, + .rsvd =3D 0xfffffffc, + .ro =3D 0x3, + },{ .name =3D "IR_ENABLE", .addr =3D A_IR_ENABLE, + .rsvd =3D 0xfffffffc, + .pre_write =3D ir_enable_prew, + },{ .name =3D "IR_DISABLE", .addr =3D A_IR_DISABLE, + .rsvd =3D 0xfffffffc, + .pre_write =3D ir_disable_prew, + },{ .name =3D "USB3", .addr =3D A_USB3, + } +}; + +static void usb2_regs_reset(DeviceState *dev) +{ + VersalUsb2CtrlRegs *s =3D XILINX_VERSAL_USB2_CTRL_REGS(dev); + unsigned int i; + + for (i =3D 0; i < ARRAY_SIZE(s->regs_info); ++i) { + register_reset(&s->regs_info[i]); + } + + ir_update_irq(s); +} + +static const MemoryRegionOps usb2_regs_ops =3D { + .read =3D register_read_memory, + .write =3D register_write_memory, + .endianness =3D DEVICE_LITTLE_ENDIAN, + .valid =3D { + .min_access_size =3D 4, + .max_access_size =3D 4, + }, +}; + +static void usb2_regs_init(Object *obj) +{ + VersalUsb2CtrlRegs *s =3D XILINX_VERSAL_USB2_CTRL_REGS(obj); + SysBusDevice *sbd =3D SYS_BUS_DEVICE(obj); + RegisterInfoArray *reg_array; + + memory_region_init(&s->iomem, obj, TYPE_XILINX_VERSAL_USB2_CTRL_REGS, + USB2_REGS_R_MAX * 4); + reg_array =3D + register_init_block32(DEVICE(obj), usb2_regs_regs_info, + ARRAY_SIZE(usb2_regs_regs_info), + s->regs_info, s->regs, + &usb2_regs_ops, + XILINX_VERSAL_USB2_CTRL_REGS_ERR_DEBUG, + USB2_REGS_R_MAX * 4); + memory_region_add_subregion(&s->iomem, + 0x0, + ®_array->mem); + sysbus_init_mmio(sbd, &s->iomem); + sysbus_init_irq(sbd, &s->irq_ir); +} + +static const VMStateDescription vmstate_usb2_regs =3D { + .name =3D TYPE_XILINX_VERSAL_USB2_CTRL_REGS, + .version_id =3D 1, + .minimum_version_id =3D 1, + .fields =3D (VMStateField[]) { + VMSTATE_UINT32_ARRAY(regs, VersalUsb2CtrlRegs, USB2_REGS_R_MAX), + VMSTATE_END_OF_LIST(), + } +}; + +static void usb2_regs_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc =3D DEVICE_CLASS(klass); + + dc->reset =3D usb2_regs_reset; + dc->vmsd =3D &vmstate_usb2_regs; +} + +static const TypeInfo usb2_regs_info =3D { + .name =3D TYPE_XILINX_VERSAL_USB2_CTRL_REGS, + .parent =3D TYPE_SYS_BUS_DEVICE, + .instance_size =3D sizeof(VersalUsb2CtrlRegs), + .class_init =3D usb2_regs_class_init, + .instance_init =3D usb2_regs_init, +}; + +static void usb2_regs_register_types(void) +{ + type_register_static(&usb2_regs_info); +} + +type_init(usb2_regs_register_types) diff --git a/include/hw/misc/xlnx-versal-usb2-ctrl-regs.h b/include/hw/misc= /xlnx-versal-usb2-ctrl-regs.h new file mode 100644 index 0000000..975a717 --- /dev/null +++ b/include/hw/misc/xlnx-versal-usb2-ctrl-regs.h @@ -0,0 +1,45 @@ +/* + * QEMU model of the VersalUsb2CtrlRegs Register control/Status block for + * USB2.0 controller + * + * Copyright (c) 2020 Xilinx Inc. Vikram Garhwal + * + * Permission is hereby granted, free of charge, to any person obtaining a= copy + * of this software and associated documentation files (the "Software"), t= o deal + * in the Software without restriction, including without limitation the r= ights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or se= ll + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included= in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS= OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OT= HER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING= FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS = IN + * THE SOFTWARE. + */ + +#ifndef _XLNX_USB2_REGS_H_ +#define _XLNX_USB2_REGS_H_ + +#define TYPE_XILINX_VERSAL_USB2_CTRL_REGS "xlnx.versal-usb2-ctrl-regs" + +#define XILINX_VERSAL_USB2_CTRL_REGS(obj) \ + OBJECT_CHECK(VersalUsb2CtrlRegs, (obj), TYPE_XILINX_VERSAL_USB2_CTRL_= REGS) + +#define USB2_REGS_R_MAX ((0x78 / 4) + 1) + +typedef struct VersalUsb2CtrlRegs { + SysBusDevice parent_obj; + MemoryRegion iomem; + qemu_irq irq_ir; + + uint32_t regs[USB2_REGS_R_MAX]; + RegisterInfo regs_info[USB2_REGS_R_MAX]; +} VersalUsb2CtrlRegs; + +#endif --=20 2.7.4