On Tue, Oct 27, 2020 at 7:50 AM Bin Meng <bmeng...@gmail.com> wrote: > > From: Bin Meng <bin.m...@windriver.com> > > This creates a model for PolarFire SoC IOSCB [1] module. It actually > contains lots of sub-modules like various PLLs to control different > peripherals. Only the mininum capabilities are emulated to make the > HSS DDR memory initialization codes happy. Lots of sub-modules are > created as an unimplemented devices. > > [1] PF_SoC_RegMap_V1_1/MPFS250T/mpfs250t_ioscb_memmap_dri.htm in > > https://www.microsemi.com/document-portal/doc_download/1244581-polarfire-soc-register-map > > Signed-off-by: Bin Meng <bin.m...@windriver.com>
Reviewed-by: Alistair Francis <alistair.fran...@wdc.com> Alistair > --- > > MAINTAINERS | 2 + > hw/misc/Kconfig | 3 + > hw/misc/mchp_pfsoc_ioscb.c | 242 +++++++++++++++++++++++++++++ > hw/misc/meson.build | 1 + > include/hw/misc/mchp_pfsoc_ioscb.h | 50 ++++++ > 5 files changed, 298 insertions(+) > create mode 100644 hw/misc/mchp_pfsoc_ioscb.c > create mode 100644 include/hw/misc/mchp_pfsoc_ioscb.h > > diff --git a/MAINTAINERS b/MAINTAINERS > index caacec401c..ebbc62a62f 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -1327,9 +1327,11 @@ S: Supported > F: hw/riscv/microchip_pfsoc.c > F: hw/char/mchp_pfsoc_mmuart.c > F: hw/misc/mchp_pfsoc_dmc.c > +F: hw/misc/mchp_pfsoc_ioscb.c > F: include/hw/riscv/microchip_pfsoc.h > F: include/hw/char/mchp_pfsoc_mmuart.h > F: include/hw/misc/mchp_pfsoc_dmc.h > +F: include/hw/misc/mchp_pfsoc_ioscb.h > > RX Machines > ----------- > diff --git a/hw/misc/Kconfig b/hw/misc/Kconfig > index 198bb1c6ba..3db15e06b4 100644 > --- a/hw/misc/Kconfig > +++ b/hw/misc/Kconfig > @@ -137,6 +137,9 @@ config AVR_POWER > config MCHP_PFSOC_DMC > bool > > +config MCHP_PFSOC_IOSCB > + bool > + > config SIFIVE_TEST > bool > > diff --git a/hw/misc/mchp_pfsoc_ioscb.c b/hw/misc/mchp_pfsoc_ioscb.c > new file mode 100644 > index 0000000000..32b88f53c1 > --- /dev/null > +++ b/hw/misc/mchp_pfsoc_ioscb.c > @@ -0,0 +1,242 @@ > +/* > + * Microchip PolarFire SoC IOSCB module emulation > + * > + * Copyright (c) 2020 Wind River Systems, Inc. > + * > + * Author: > + * Bin Meng <bin.m...@windriver.com> > + * > + * This program is free software; you can redistribute it and/or > + * modify it under the terms of the GNU General Public License as > + * published by the Free Software Foundation; either version 2 or > + * (at your option) version 3 of the License. > + * > + * This program is distributed in the hope that it will be useful, > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + * GNU General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License along > + * with this program; if not, see <http://www.gnu.org/licenses/>. > + */ > + > +#include "qemu/osdep.h" > +#include "qemu/bitops.h" > +#include "qemu/log.h" > +#include "qapi/error.h" > +#include "hw/hw.h" > +#include "hw/sysbus.h" > +#include "hw/misc/mchp_pfsoc_ioscb.h" > + > +/* > + * The whole IOSCB module registers map into the system address at > 0x3000_0000, > + * named as "System Port 0 (AXI-D0)". > + */ > +#define IOSCB_WHOLE_REG_SIZE 0x10000000 > +#define IOSCB_SUBMOD_REG_SIZE 0x1000 > + > +/* > + * There are many sub-modules in the IOSCB module. > + * See Microchip PolarFire SoC documentation (Register_Map.zip), > + * Register Map/PF_SoC_RegMap_V1_1/MPFS250T/mpfs250t_ioscb_memmap_dri.htm > + * > + * The following are sub-modules offsets that are of concern. > + */ > +#define IOSCB_LANE01_BASE 0x06500000 > +#define IOSCB_LANE23_BASE 0x06510000 > +#define IOSCB_CTRL_BASE 0x07020000 > +#define IOSCB_CFG_BASE 0x07080000 > +#define IOSCB_PLL_MSS_BASE 0x0E001000 > +#define IOSCB_CFM_MSS_BASE 0x0E002000 > +#define IOSCB_PLL_DDR_BASE 0x0E010000 > +#define IOSCB_BC_DDR_BASE 0x0E020000 > +#define IOSCB_IO_CALIB_DDR_BASE 0x0E040000 > +#define IOSCB_PLL_SGMII_BASE 0x0E080000 > +#define IOSCB_DLL_SGMII_BASE 0x0E100000 > +#define IOSCB_CFM_SGMII_BASE 0x0E200000 > +#define IOSCB_BC_SGMII_BASE 0x0E400000 > +#define IOSCB_IO_CALIB_SGMII_BASE 0x0E800000 > + > +static uint64_t mchp_pfsoc_dummy_read(void *opaque, hwaddr offset, > + unsigned size) > +{ > + qemu_log_mask(LOG_UNIMP, "%s: unimplemented device read " > + "(size %d, offset 0x%" HWADDR_PRIx ")\n", > + __func__, size, offset); > + > + return 0; > +} > + > +static void mchp_pfsoc_dummy_write(void *opaque, hwaddr offset, > + uint64_t value, unsigned size) > +{ > + qemu_log_mask(LOG_UNIMP, "%s: unimplemented device write " > + "(size %d, value 0x%" PRIx64 > + ", offset 0x%" HWADDR_PRIx ")\n", > + __func__, size, value, offset); > +} > + > +static const MemoryRegionOps mchp_pfsoc_dummy_ops = { > + .read = mchp_pfsoc_dummy_read, > + .write = mchp_pfsoc_dummy_write, > + .endianness = DEVICE_LITTLE_ENDIAN, > +}; > + > +/* All PLL modules in IOSCB have the same register layout */ > + > +#define PLL_CTRL 0x04 > + > +static uint64_t mchp_pfsoc_pll_read(void *opaque, hwaddr offset, > + unsigned size) > +{ > + uint32_t val = 0; > + > + switch (offset) { > + case PLL_CTRL: > + /* PLL is locked */ > + val = BIT(25); > + break; > + default: > + qemu_log_mask(LOG_UNIMP, "%s: unimplemented device read " > + "(size %d, offset 0x%" HWADDR_PRIx ")\n", > + __func__, size, offset); > + break; > + } > + > + return val; > +} > + > +static const MemoryRegionOps mchp_pfsoc_pll_ops = { > + .read = mchp_pfsoc_pll_read, > + .write = mchp_pfsoc_dummy_write, > + .endianness = DEVICE_LITTLE_ENDIAN, > +}; > + > +/* IO_CALIB_DDR submodule */ > + > +#define IO_CALIB_DDR_IOC_REG1 0x08 > + > +static uint64_t mchp_pfsoc_io_calib_ddr_read(void *opaque, hwaddr offset, > + unsigned size) > +{ > + uint32_t val = 0; > + > + switch (offset) { > + case IO_CALIB_DDR_IOC_REG1: > + /* calibration completed */ > + val = BIT(2); > + break; > + default: > + qemu_log_mask(LOG_UNIMP, "%s: unimplemented device read " > + "(size %d, offset 0x%" HWADDR_PRIx ")\n", > + __func__, size, offset); > + break; > + } > + > + return val; > +} > + > +static const MemoryRegionOps mchp_pfsoc_io_calib_ddr_ops = { > + .read = mchp_pfsoc_io_calib_ddr_read, > + .write = mchp_pfsoc_dummy_write, > + .endianness = DEVICE_LITTLE_ENDIAN, > +}; > + > +static void mchp_pfsoc_ioscb_realize(DeviceState *dev, Error **errp) > +{ > + MchpPfSoCIoscbState *s = MCHP_PFSOC_IOSCB(dev); > + SysBusDevice *sbd = SYS_BUS_DEVICE(dev); > + > + memory_region_init(&s->container, OBJECT(s), > + "mchp.pfsoc.ioscb", IOSCB_WHOLE_REG_SIZE); > + sysbus_init_mmio(sbd, &s->container); > + > + /* add subregions for all sub-modules in IOSCB */ > + > + memory_region_init_io(&s->lane01, OBJECT(s), &mchp_pfsoc_dummy_ops, s, > + "mchp.pfsoc.ioscb.lane01", IOSCB_SUBMOD_REG_SIZE); > + memory_region_add_subregion(&s->container, IOSCB_LANE01_BASE, > &s->lane01); > + > + memory_region_init_io(&s->lane23, OBJECT(s), &mchp_pfsoc_dummy_ops, s, > + "mchp.pfsoc.ioscb.lane23", IOSCB_SUBMOD_REG_SIZE); > + memory_region_add_subregion(&s->container, IOSCB_LANE23_BASE, > &s->lane23); > + > + memory_region_init_io(&s->ctrl, OBJECT(s), &mchp_pfsoc_dummy_ops, s, > + "mchp.pfsoc.ioscb.ctrl", IOSCB_SUBMOD_REG_SIZE); > + memory_region_add_subregion(&s->container, IOSCB_CTRL_BASE, &s->ctrl); > + > + memory_region_init_io(&s->cfg, OBJECT(s), &mchp_pfsoc_dummy_ops, s, > + "mchp.pfsoc.ioscb.cfg", IOSCB_SUBMOD_REG_SIZE); > + memory_region_add_subregion(&s->container, IOSCB_CFG_BASE, &s->cfg); > + > + memory_region_init_io(&s->pll_mss, OBJECT(s), &mchp_pfsoc_pll_ops, s, > + "mchp.pfsoc.ioscb.pll_mss", IOSCB_SUBMOD_REG_SIZE); > + memory_region_add_subregion(&s->container, IOSCB_PLL_MSS_BASE, > &s->pll_mss); > + > + memory_region_init_io(&s->cfm_mss, OBJECT(s), &mchp_pfsoc_dummy_ops, s, > + "mchp.pfsoc.ioscb.cfm_mss", IOSCB_SUBMOD_REG_SIZE); > + memory_region_add_subregion(&s->container, IOSCB_CFM_MSS_BASE, > &s->cfm_mss); > + > + memory_region_init_io(&s->pll_ddr, OBJECT(s), &mchp_pfsoc_pll_ops, s, > + "mchp.pfsoc.ioscb.pll_ddr", IOSCB_SUBMOD_REG_SIZE); > + memory_region_add_subregion(&s->container, IOSCB_PLL_DDR_BASE, > &s->pll_ddr); > + > + memory_region_init_io(&s->bc_ddr, OBJECT(s), &mchp_pfsoc_dummy_ops, s, > + "mchp.pfsoc.ioscb.bc_ddr", IOSCB_SUBMOD_REG_SIZE); > + memory_region_add_subregion(&s->container, IOSCB_BC_DDR_BASE, > &s->bc_ddr); > + > + memory_region_init_io(&s->io_calib_ddr, OBJECT(s), > + &mchp_pfsoc_io_calib_ddr_ops, s, > + "mchp.pfsoc.ioscb.io_calib_ddr", > + IOSCB_SUBMOD_REG_SIZE); > + memory_region_add_subregion(&s->container, IOSCB_IO_CALIB_DDR_BASE, > + &s->io_calib_ddr); > + > + memory_region_init_io(&s->pll_sgmii, OBJECT(s), &mchp_pfsoc_pll_ops, s, > + "mchp.pfsoc.ioscb.pll_sgmii", > IOSCB_SUBMOD_REG_SIZE); > + memory_region_add_subregion(&s->container, IOSCB_PLL_SGMII_BASE, > + &s->pll_sgmii); > + > + memory_region_init_io(&s->dll_sgmii, OBJECT(s), &mchp_pfsoc_dummy_ops, s, > + "mchp.pfsoc.ioscb.dll_sgmii", > IOSCB_SUBMOD_REG_SIZE); > + memory_region_add_subregion(&s->container, IOSCB_DLL_SGMII_BASE, > + &s->dll_sgmii); > + > + memory_region_init_io(&s->cfm_sgmii, OBJECT(s), &mchp_pfsoc_dummy_ops, s, > + "mchp.pfsoc.ioscb.cfm_sgmii", > IOSCB_SUBMOD_REG_SIZE); > + memory_region_add_subregion(&s->container, IOSCB_CFM_SGMII_BASE, > + &s->cfm_sgmii); > + > + memory_region_init_io(&s->bc_sgmii, OBJECT(s), &mchp_pfsoc_dummy_ops, s, > + "mchp.pfsoc.ioscb.bc_sgmii", > IOSCB_SUBMOD_REG_SIZE); > + memory_region_add_subregion(&s->container, IOSCB_BC_SGMII_BASE, > + &s->bc_sgmii); > + > + memory_region_init_io(&s->io_calib_sgmii, OBJECT(s), > &mchp_pfsoc_dummy_ops, > + s, "mchp.pfsoc.ioscb.io_calib_sgmii", > + IOSCB_SUBMOD_REG_SIZE); > + memory_region_add_subregion(&s->container, IOSCB_IO_CALIB_SGMII_BASE, > + &s->io_calib_sgmii); > +} > + > +static void mchp_pfsoc_ioscb_class_init(ObjectClass *klass, void *data) > +{ > + DeviceClass *dc = DEVICE_CLASS(klass); > + > + dc->desc = "Microchip PolarFire SoC IOSCB"; > + dc->realize = mchp_pfsoc_ioscb_realize; > +} > + > +static const TypeInfo mchp_pfsoc_ioscb_info = { > + .name = TYPE_MCHP_PFSOC_IOSCB, > + .parent = TYPE_SYS_BUS_DEVICE, > + .instance_size = sizeof(MchpPfSoCIoscbState), > + .class_init = mchp_pfsoc_ioscb_class_init, > +}; > + > +static void mchp_pfsoc_ioscb_register_types(void) > +{ > + type_register_static(&mchp_pfsoc_ioscb_info); > +} > + > +type_init(mchp_pfsoc_ioscb_register_types) > diff --git a/hw/misc/meson.build b/hw/misc/meson.build > index 2d79a657e0..6d3c1a3455 100644 > --- a/hw/misc/meson.build > +++ b/hw/misc/meson.build > @@ -23,6 +23,7 @@ softmmu_ss.add(when: 'CONFIG_MOS6522', if_true: > files('mos6522.c')) > > # RISC-V devices > softmmu_ss.add(when: 'CONFIG_MCHP_PFSOC_DMC', if_true: > files('mchp_pfsoc_dmc.c')) > +softmmu_ss.add(when: 'CONFIG_MCHP_PFSOC_IOSCB', if_true: > files('mchp_pfsoc_ioscb.c')) > softmmu_ss.add(when: 'CONFIG_SIFIVE_TEST', if_true: files('sifive_test.c')) > softmmu_ss.add(when: 'CONFIG_SIFIVE_E_PRCI', if_true: > files('sifive_e_prci.c')) > softmmu_ss.add(when: 'CONFIG_SIFIVE_U_OTP', if_true: files('sifive_u_otp.c')) > diff --git a/include/hw/misc/mchp_pfsoc_ioscb.h > b/include/hw/misc/mchp_pfsoc_ioscb.h > new file mode 100644 > index 0000000000..9235523e33 > --- /dev/null > +++ b/include/hw/misc/mchp_pfsoc_ioscb.h > @@ -0,0 +1,50 @@ > +/* > + * Microchip PolarFire SoC IOSCB module emulation > + * > + * Copyright (c) 2020 Wind River Systems, Inc. > + * > + * Author: > + * Bin Meng <bin.m...@windriver.com> > + * > + * This program is free software; you can redistribute it and/or > + * modify it under the terms of the GNU General Public License as > + * published by the Free Software Foundation; either version 2 or > + * (at your option) version 3 of the License. > + * > + * This program is distributed in the hope that it will be useful, > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + * GNU General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License along > + * with this program; if not, see <http://www.gnu.org/licenses/>. > + */ > + > +#ifndef MCHP_PFSOC_IOSCB_H > +#define MCHP_PFSOC_IOSCB_H > + > +typedef struct MchpPfSoCIoscbState { > + SysBusDevice parent; > + MemoryRegion container; > + MemoryRegion lane01; > + MemoryRegion lane23; > + MemoryRegion ctrl; > + MemoryRegion cfg; > + MemoryRegion pll_mss; > + MemoryRegion cfm_mss; > + MemoryRegion pll_ddr; > + MemoryRegion bc_ddr; > + MemoryRegion io_calib_ddr; > + MemoryRegion pll_sgmii; > + MemoryRegion dll_sgmii; > + MemoryRegion cfm_sgmii; > + MemoryRegion bc_sgmii; > + MemoryRegion io_calib_sgmii; > +} MchpPfSoCIoscbState; > + > +#define TYPE_MCHP_PFSOC_IOSCB "mchp.pfsoc.ioscb" > + > +#define MCHP_PFSOC_IOSCB(obj) \ > + OBJECT_CHECK(MchpPfSoCIoscbState, (obj), TYPE_MCHP_PFSOC_IOSCB) > + > +#endif /* MCHP_PFSOC_IOSCB_H */ > -- > 2.25.1 > >
