diff mbox series

[v1,3/6] hw/misc: Add a model of the Xilinx ZynqMP CRF

Message ID 20220130231206.34035-4-edgar.iglesias@gmail.com
State New
Headers show
Series hw/arm: zynqmp: Add CRF and APU control to support PSCI | expand

Commit Message

Edgar E. Iglesias Jan. 30, 2022, 11:12 p.m. UTC 
From: "Edgar E. Iglesias" <edgar.iglesias@xilinx.com>

Add a model of the Xilinx ZynqMP CRF. At the moment this
is mostly a stub model.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
---
 include/hw/misc/xlnx-zynqmp-crf.h | 209 +++++++++++++++++++++++
 hw/misc/xlnx-zynqmp-crf.c         | 270 ++++++++++++++++++++++++++++++
 hw/misc/meson.build               |   1 +
 3 files changed, 480 insertions(+)
 create mode 100644 include/hw/misc/xlnx-zynqmp-crf.h
 create mode 100644 hw/misc/xlnx-zynqmp-crf.c

Comments

Francisco Iglesias Jan. 31, 2022, 3:35 p.m. UTC | #1 
Hi Edgar,

A couple of minor comments below, looks good to me otherwise!

On Mon, Jan 31, 2022 at 12:12:03AM +0100, Edgar E. Iglesias wrote:
> From: "Edgar E. Iglesias" <edgar.iglesias@xilinx.com>
> 
> Add a model of the Xilinx ZynqMP CRF. At the moment this
> is mostly a stub model.
> 
> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
> ---
>  include/hw/misc/xlnx-zynqmp-crf.h | 209 +++++++++++++++++++++++
>  hw/misc/xlnx-zynqmp-crf.c         | 270 ++++++++++++++++++++++++++++++
>  hw/misc/meson.build               |   1 +
>  3 files changed, 480 insertions(+)
>  create mode 100644 include/hw/misc/xlnx-zynqmp-crf.h
>  create mode 100644 hw/misc/xlnx-zynqmp-crf.c
> 
> diff --git a/include/hw/misc/xlnx-zynqmp-crf.h b/include/hw/misc/xlnx-zynqmp-crf.h
> new file mode 100644
> index 0000000000..b173ea4a08
> --- /dev/null
> +++ b/include/hw/misc/xlnx-zynqmp-crf.h
> @@ -0,0 +1,209 @@
> +/*
> + * QEMU model of the CRF - Clock Reset FPD.
> + *
> + * Copyright (c) 2022 Xilinx Inc.
> + * SPDX-License-Identifier: GPL-2.0-or-later
> + * Written by Edgar E. Iglesias <edgar.iglesias@xilinx.com>
> + */
> +

Include guard seem to be missing:

#ifndef XLNX_ZYNQMP_CRF_H
#define XLNX_ZYNQMP_CRF_H


> +#include "hw/sysbus.h"
> +#include "hw/register.h"
> +
> +#define TYPE_XLNX_ZYNQMP_CRF "xlnx.zynqmp_crf"
> +
> +#define XILINX_CRF(obj) \
> +     OBJECT_CHECK(XlnxZynqMPCRF, (obj), TYPE_XLNX_ZYNQMP_CRF)
> +
> +REG32(ERR_CTRL, 0x0)

(Optional but in case the these ones wont be used outside
xlnx-zynqmp-crf.c we could consider placing them there).

> +    FIELD(ERR_CTRL, SLVERR_ENABLE, 0, 1)
> +REG32(IR_STATUS, 0x4)
> +    FIELD(IR_STATUS, ADDR_DECODE_ERR, 0, 1)
> +REG32(IR_MASK, 0x8)
> +    FIELD(IR_MASK, ADDR_DECODE_ERR, 0, 1)
> +REG32(IR_ENABLE, 0xc)
> +    FIELD(IR_ENABLE, ADDR_DECODE_ERR, 0, 1)
> +REG32(IR_DISABLE, 0x10)
> +    FIELD(IR_DISABLE, ADDR_DECODE_ERR, 0, 1)
> +REG32(CRF_WPROT, 0x1c)
> +    FIELD(CRF_WPROT, ACTIVE, 0, 1)
> +REG32(APLL_CTRL, 0x20)
> +    FIELD(APLL_CTRL, POST_SRC, 24, 3)
> +    FIELD(APLL_CTRL, PRE_SRC, 20, 3)
> +    FIELD(APLL_CTRL, CLKOUTDIV, 17, 1)
> +    FIELD(APLL_CTRL, DIV2, 16, 1)
> +    FIELD(APLL_CTRL, FBDIV, 8, 7)
> +    FIELD(APLL_CTRL, BYPASS, 3, 1)
> +    FIELD(APLL_CTRL, RESET, 0, 1)
> +REG32(APLL_CFG, 0x24)
> +    FIELD(APLL_CFG, LOCK_DLY, 25, 7)
> +    FIELD(APLL_CFG, LOCK_CNT, 13, 10)
> +    FIELD(APLL_CFG, LFHF, 10, 2)
> +    FIELD(APLL_CFG, CP, 5, 4)
> +    FIELD(APLL_CFG, RES, 0, 4)
> +REG32(APLL_FRAC_CFG, 0x28)
> +    FIELD(APLL_FRAC_CFG, ENABLED, 31, 1)
> +    FIELD(APLL_FRAC_CFG, SEED, 22, 3)
> +    FIELD(APLL_FRAC_CFG, ALGRTHM, 19, 1)
> +    FIELD(APLL_FRAC_CFG, ORDER, 18, 1)
> +    FIELD(APLL_FRAC_CFG, DATA, 0, 16)
> +REG32(DPLL_CTRL, 0x2c)
> +    FIELD(DPLL_CTRL, POST_SRC, 24, 3)
> +    FIELD(DPLL_CTRL, PRE_SRC, 20, 3)
> +    FIELD(DPLL_CTRL, CLKOUTDIV, 17, 1)
> +    FIELD(DPLL_CTRL, DIV2, 16, 1)
> +    FIELD(DPLL_CTRL, FBDIV, 8, 7)
> +    FIELD(DPLL_CTRL, BYPASS, 3, 1)
> +    FIELD(DPLL_CTRL, RESET, 0, 1)
> +REG32(DPLL_CFG, 0x30)
> +    FIELD(DPLL_CFG, LOCK_DLY, 25, 7)
> +    FIELD(DPLL_CFG, LOCK_CNT, 13, 10)
> +    FIELD(DPLL_CFG, LFHF, 10, 2)
> +    FIELD(DPLL_CFG, CP, 5, 4)
> +    FIELD(DPLL_CFG, RES, 0, 4)
> +REG32(DPLL_FRAC_CFG, 0x34)
> +    FIELD(DPLL_FRAC_CFG, ENABLED, 31, 1)
> +    FIELD(DPLL_FRAC_CFG, SEED, 22, 3)
> +    FIELD(DPLL_FRAC_CFG, ALGRTHM, 19, 1)
> +    FIELD(DPLL_FRAC_CFG, ORDER, 18, 1)
> +    FIELD(DPLL_FRAC_CFG, DATA, 0, 16)
> +REG32(VPLL_CTRL, 0x38)
> +    FIELD(VPLL_CTRL, POST_SRC, 24, 3)
> +    FIELD(VPLL_CTRL, PRE_SRC, 20, 3)
> +    FIELD(VPLL_CTRL, CLKOUTDIV, 17, 1)
> +    FIELD(VPLL_CTRL, DIV2, 16, 1)
> +    FIELD(VPLL_CTRL, FBDIV, 8, 7)
> +    FIELD(VPLL_CTRL, BYPASS, 3, 1)
> +    FIELD(VPLL_CTRL, RESET, 0, 1)
> +REG32(VPLL_CFG, 0x3c)
> +    FIELD(VPLL_CFG, LOCK_DLY, 25, 7)
> +    FIELD(VPLL_CFG, LOCK_CNT, 13, 10)
> +    FIELD(VPLL_CFG, LFHF, 10, 2)
> +    FIELD(VPLL_CFG, CP, 5, 4)
> +    FIELD(VPLL_CFG, RES, 0, 4)
> +REG32(VPLL_FRAC_CFG, 0x40)
> +    FIELD(VPLL_FRAC_CFG, ENABLED, 31, 1)
> +    FIELD(VPLL_FRAC_CFG, SEED, 22, 3)
> +    FIELD(VPLL_FRAC_CFG, ALGRTHM, 19, 1)
> +    FIELD(VPLL_FRAC_CFG, ORDER, 18, 1)
> +    FIELD(VPLL_FRAC_CFG, DATA, 0, 16)
> +REG32(PLL_STATUS, 0x44)
> +    FIELD(PLL_STATUS, VPLL_STABLE, 5, 1)
> +    FIELD(PLL_STATUS, DPLL_STABLE, 4, 1)
> +    FIELD(PLL_STATUS, APLL_STABLE, 3, 1)
> +    FIELD(PLL_STATUS, VPLL_LOCK, 2, 1)
> +    FIELD(PLL_STATUS, DPLL_LOCK, 1, 1)
> +    FIELD(PLL_STATUS, APLL_LOCK, 0, 1)
> +REG32(APLL_TO_LPD_CTRL, 0x48)
> +    FIELD(APLL_TO_LPD_CTRL, DIVISOR0, 8, 6)
> +REG32(DPLL_TO_LPD_CTRL, 0x4c)
> +    FIELD(DPLL_TO_LPD_CTRL, DIVISOR0, 8, 6)
> +REG32(VPLL_TO_LPD_CTRL, 0x50)
> +    FIELD(VPLL_TO_LPD_CTRL, DIVISOR0, 8, 6)
> +REG32(ACPU_CTRL, 0x60)
> +    FIELD(ACPU_CTRL, CLKACT_HALF, 25, 1)
> +    FIELD(ACPU_CTRL, CLKACT_FULL, 24, 1)
> +    FIELD(ACPU_CTRL, DIVISOR0, 8, 6)
> +    FIELD(ACPU_CTRL, SRCSEL, 0, 3)
> +REG32(DBG_TRACE_CTRL, 0x64)
> +    FIELD(DBG_TRACE_CTRL, CLKACT, 24, 1)
> +    FIELD(DBG_TRACE_CTRL, DIVISOR0, 8, 6)
> +    FIELD(DBG_TRACE_CTRL, SRCSEL, 0, 3)
> +REG32(DBG_FPD_CTRL, 0x68)
> +    FIELD(DBG_FPD_CTRL, CLKACT, 24, 1)
> +    FIELD(DBG_FPD_CTRL, DIVISOR0, 8, 6)
> +    FIELD(DBG_FPD_CTRL, SRCSEL, 0, 3)
> +REG32(DP_VIDEO_REF_CTRL, 0x70)
> +    FIELD(DP_VIDEO_REF_CTRL, CLKACT, 24, 1)
> +    FIELD(DP_VIDEO_REF_CTRL, DIVISOR1, 16, 6)
> +    FIELD(DP_VIDEO_REF_CTRL, DIVISOR0, 8, 6)
> +    FIELD(DP_VIDEO_REF_CTRL, SRCSEL, 0, 3)
> +REG32(DP_AUDIO_REF_CTRL, 0x74)
> +    FIELD(DP_AUDIO_REF_CTRL, CLKACT, 24, 1)
> +    FIELD(DP_AUDIO_REF_CTRL, DIVISOR1, 16, 6)
> +    FIELD(DP_AUDIO_REF_CTRL, DIVISOR0, 8, 6)
> +    FIELD(DP_AUDIO_REF_CTRL, SRCSEL, 0, 3)
> +REG32(DP_STC_REF_CTRL, 0x7c)
> +    FIELD(DP_STC_REF_CTRL, CLKACT, 24, 1)
> +    FIELD(DP_STC_REF_CTRL, DIVISOR1, 16, 6)
> +    FIELD(DP_STC_REF_CTRL, DIVISOR0, 8, 6)
> +    FIELD(DP_STC_REF_CTRL, SRCSEL, 0, 3)
> +REG32(DDR_CTRL, 0x80)
> +    FIELD(DDR_CTRL, CLKACT, 24, 1)
> +    FIELD(DDR_CTRL, DIVISOR0, 8, 6)
> +    FIELD(DDR_CTRL, SRCSEL, 0, 3)
> +REG32(GPU_REF_CTRL, 0x84)
> +    FIELD(GPU_REF_CTRL, PP1_CLKACT, 26, 1)
> +    FIELD(GPU_REF_CTRL, PP0_CLKACT, 25, 1)
> +    FIELD(GPU_REF_CTRL, CLKACT, 24, 1)
> +    FIELD(GPU_REF_CTRL, DIVISOR0, 8, 6)
> +    FIELD(GPU_REF_CTRL, SRCSEL, 0, 3)
> +REG32(SATA_REF_CTRL, 0xa0)
> +    FIELD(SATA_REF_CTRL, CLKACT, 24, 1)
> +    FIELD(SATA_REF_CTRL, DIVISOR0, 8, 6)
> +    FIELD(SATA_REF_CTRL, SRCSEL, 0, 3)
> +REG32(PCIE_REF_CTRL, 0xb4)
> +    FIELD(PCIE_REF_CTRL, CLKACT, 24, 1)
> +    FIELD(PCIE_REF_CTRL, DIVISOR0, 8, 6)
> +    FIELD(PCIE_REF_CTRL, SRCSEL, 0, 3)
> +REG32(GDMA_REF_CTRL, 0xb8)
> +    FIELD(GDMA_REF_CTRL, CLKACT, 24, 1)
> +    FIELD(GDMA_REF_CTRL, DIVISOR0, 8, 6)
> +    FIELD(GDMA_REF_CTRL, SRCSEL, 0, 3)
> +REG32(DPDMA_REF_CTRL, 0xbc)
> +    FIELD(DPDMA_REF_CTRL, CLKACT, 24, 1)
> +    FIELD(DPDMA_REF_CTRL, DIVISOR0, 8, 6)
> +    FIELD(DPDMA_REF_CTRL, SRCSEL, 0, 3)
> +REG32(TOPSW_MAIN_CTRL, 0xc0)
> +    FIELD(TOPSW_MAIN_CTRL, CLKACT, 24, 1)
> +    FIELD(TOPSW_MAIN_CTRL, DIVISOR0, 8, 6)
> +    FIELD(TOPSW_MAIN_CTRL, SRCSEL, 0, 3)
> +REG32(TOPSW_LSBUS_CTRL, 0xc4)
> +    FIELD(TOPSW_LSBUS_CTRL, CLKACT, 24, 1)
> +    FIELD(TOPSW_LSBUS_CTRL, DIVISOR0, 8, 6)
> +    FIELD(TOPSW_LSBUS_CTRL, SRCSEL, 0, 3)
> +REG32(DBG_TSTMP_CTRL, 0xf8)
> +    FIELD(DBG_TSTMP_CTRL, DIVISOR0, 8, 6)
> +    FIELD(DBG_TSTMP_CTRL, SRCSEL, 0, 3)
> +REG32(RST_FPD_TOP, 0x100)
> +    FIELD(RST_FPD_TOP, PCIE_CFG_RESET, 19, 1)
> +    FIELD(RST_FPD_TOP, PCIE_BRIDGE_RESET, 18, 1)
> +    FIELD(RST_FPD_TOP, PCIE_CTRL_RESET, 17, 1)
> +    FIELD(RST_FPD_TOP, DP_RESET, 16, 1)
> +    FIELD(RST_FPD_TOP, SWDT_RESET, 15, 1)
> +    FIELD(RST_FPD_TOP, AFI_FM5_RESET, 12, 1)
> +    FIELD(RST_FPD_TOP, AFI_FM4_RESET, 11, 1)
> +    FIELD(RST_FPD_TOP, AFI_FM3_RESET, 10, 1)
> +    FIELD(RST_FPD_TOP, AFI_FM2_RESET, 9, 1)
> +    FIELD(RST_FPD_TOP, AFI_FM1_RESET, 8, 1)
> +    FIELD(RST_FPD_TOP, AFI_FM0_RESET, 7, 1)
> +    FIELD(RST_FPD_TOP, GDMA_RESET, 6, 1)
> +    FIELD(RST_FPD_TOP, GPU_PP1_RESET, 5, 1)
> +    FIELD(RST_FPD_TOP, GPU_PP0_RESET, 4, 1)
> +    FIELD(RST_FPD_TOP, GPU_RESET, 3, 1)
> +    FIELD(RST_FPD_TOP, GT_RESET, 2, 1)
> +    FIELD(RST_FPD_TOP, SATA_RESET, 1, 1)
> +REG32(RST_FPD_APU, 0x104)
> +    FIELD(RST_FPD_APU, ACPU3_PWRON_RESET, 13, 1)
> +    FIELD(RST_FPD_APU, ACPU2_PWRON_RESET, 12, 1)
> +    FIELD(RST_FPD_APU, ACPU1_PWRON_RESET, 11, 1)
> +    FIELD(RST_FPD_APU, ACPU0_PWRON_RESET, 10, 1)
> +    FIELD(RST_FPD_APU, APU_L2_RESET, 8, 1)
> +    FIELD(RST_FPD_APU, ACPU3_RESET, 3, 1)
> +    FIELD(RST_FPD_APU, ACPU2_RESET, 2, 1)
> +    FIELD(RST_FPD_APU, ACPU1_RESET, 1, 1)
> +    FIELD(RST_FPD_APU, ACPU0_RESET, 0, 1)
> +REG32(RST_DDR_SS, 0x108)
> +    FIELD(RST_DDR_SS, DDR_RESET, 3, 1)
> +    FIELD(RST_DDR_SS, APM_RESET, 2, 1)
> +
> +#define CRF_R_MAX (R_RST_DDR_SS + 1)
> +
> +typedef struct XlnxZynqMPCRF {
> +    SysBusDevice parent_obj;
> +    MemoryRegion iomem;
> +    qemu_irq irq_ir;
> +
> +    RegisterInfoArray *reg_array;
> +    uint32_t regs[CRF_R_MAX];
> +    RegisterInfo regs_info[CRF_R_MAX];
> +} XlnxZynqMPCRF;
> diff --git a/hw/misc/xlnx-zynqmp-crf.c b/hw/misc/xlnx-zynqmp-crf.c
> new file mode 100644
> index 0000000000..7b3a955a42
> --- /dev/null
> +++ b/hw/misc/xlnx-zynqmp-crf.c
> @@ -0,0 +1,270 @@
> +/*
> + * QEMU model of the CRF - Clock Reset FPD.
> + *
> + * Copyright (c) 2022 Xilinx Inc.
> + * SPDX-License-Identifier: GPL-2.0-or-later
> + * Written by Edgar E. Iglesias <edgar.iglesias@xilinx.com>
> + */
> +
> +#include "qemu/osdep.h"
> +#include "hw/sysbus.h"
> +#include "hw/register.h"
> +#include "qemu/bitops.h"
> +#include "qemu/log.h"
> +#include "migration/vmstate.h"
> +#include "hw/irq.h"
> +#include "hw/misc/xlnx-zynqmp-crf.h"
> +#include "target/arm/arm-powerctl.h"
> +
> +#ifndef XILINX_CRF_ERR_DEBUG
> +#define XILINX_CRF_ERR_DEBUG 1
> +#endif
> +
> +#define APU_MAX_CPU    4
> +
> +static void ir_update_irq(XlnxZynqMPCRF *s)
> +{
> +    bool pending = 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)
> +{
> +    XlnxZynqMPCRF *s = XILINX_CRF(reg->opaque);
> +    ir_update_irq(s);
> +}
> +
> +static uint64_t ir_enable_prew(RegisterInfo *reg, uint64_t val64)
> +{
> +    XlnxZynqMPCRF *s = XILINX_CRF(reg->opaque);
> +    uint32_t val = val64;
> +
> +    s->regs[R_IR_MASK] &= ~val;
> +    ir_update_irq(s);
> +    return 0;
> +}
> +
> +static uint64_t ir_disable_prew(RegisterInfo *reg, uint64_t val64)
> +{
> +    XlnxZynqMPCRF *s = XILINX_CRF(reg->opaque);
> +    uint32_t val = val64;
> +
> +    s->regs[R_IR_MASK] |= val;
> +    ir_update_irq(s);
> +    return 0;
> +}
> +
> +static uint64_t rst_fpd_apu_prew(RegisterInfo *reg, uint64_t val64)
> +{
> +    XlnxZynqMPCRF *s = XILINX_CRF(reg->opaque);
> +    uint32_t val = val64;
> +    uint32_t val_old = s->regs[R_RST_FPD_APU];
> +    unsigned int i;
> +
> +    for (i = 0; i < APU_MAX_CPU; i++) {
> +        uint32_t mask = (1 << (R_RST_FPD_APU_ACPU0_RESET_SHIFT + i));
> +
> +        if ((val ^ val_old) & mask) {
> +            if (val & mask) {
> +                arm_set_cpu_off(i);
> +            } else {
> +                arm_set_cpu_on_and_reset(i);
> +            }
> +        }
> +    }
> +    return val64;
> +}
> +
> +static const RegisterAccessInfo crf_regs_info[] = {
> +    {   .name = "ERR_CTRL",  .addr = A_ERR_CTRL,
> +    },{ .name = "IR_STATUS",  .addr = A_IR_STATUS,
> +        .w1c = 0x1,
> +        .post_write = ir_status_postw,
> +    },{ .name = "IR_MASK",  .addr = A_IR_MASK,
> +        .reset = 0x1,
> +        .ro = 0x1,
> +    },{ .name = "IR_ENABLE",  .addr = A_IR_ENABLE,
> +        .pre_write = ir_enable_prew,
> +    },{ .name = "IR_DISABLE",  .addr = A_IR_DISABLE,
> +        .pre_write = ir_disable_prew,
> +    },{ .name = "CRF_WPROT",  .addr = A_CRF_WPROT,
> +    },{ .name = "APLL_CTRL",  .addr = A_APLL_CTRL,
> +        .reset = 0x12c09,
> +        .rsvd = 0xf88c80f6,
> +    },{ .name = "APLL_CFG",  .addr = A_APLL_CFG,
> +        .rsvd = 0x1801210,
> +    },{ .name = "APLL_FRAC_CFG",  .addr = A_APLL_FRAC_CFG,
> +        .rsvd = 0x7e330000,
> +    },{ .name = "DPLL_CTRL",  .addr = A_DPLL_CTRL,
> +        .reset = 0x2c09,
> +        .rsvd = 0xf88c80f6,
> +    },{ .name = "DPLL_CFG",  .addr = A_DPLL_CFG,
> +        .rsvd = 0x1801210,
> +    },{ .name = "DPLL_FRAC_CFG",  .addr = A_DPLL_FRAC_CFG,
> +        .rsvd = 0x7e330000,
> +    },{ .name = "VPLL_CTRL",  .addr = A_VPLL_CTRL,
> +        .reset = 0x12809,
> +        .rsvd = 0xf88c80f6,
> +    },{ .name = "VPLL_CFG",  .addr = A_VPLL_CFG,
> +        .rsvd = 0x1801210,
> +    },{ .name = "VPLL_FRAC_CFG",  .addr = A_VPLL_FRAC_CFG,
> +        .rsvd = 0x7e330000,
> +    },{ .name = "PLL_STATUS",  .addr = A_PLL_STATUS,
> +        .reset = 0x3f,
> +        .rsvd = 0xc0,
> +        .ro = 0x3f,
> +    },{ .name = "APLL_TO_LPD_CTRL",  .addr = A_APLL_TO_LPD_CTRL,
> +        .reset = 0x400,
> +        .rsvd = 0xc0ff,
> +    },{ .name = "DPLL_TO_LPD_CTRL",  .addr = A_DPLL_TO_LPD_CTRL,
> +        .reset = 0x400,
> +        .rsvd = 0xc0ff,
> +    },{ .name = "VPLL_TO_LPD_CTRL",  .addr = A_VPLL_TO_LPD_CTRL,
> +        .reset = 0x400,
> +        .rsvd = 0xc0ff,
> +    },{ .name = "ACPU_CTRL",  .addr = A_ACPU_CTRL,
> +        .reset = 0x3000400,
> +        .rsvd = 0xfcffc0f8,
> +    },{ .name = "DBG_TRACE_CTRL",  .addr = A_DBG_TRACE_CTRL,
> +        .reset = 0x2500,
> +        .rsvd = 0xfeffc0f8,
> +    },{ .name = "DBG_FPD_CTRL",  .addr = A_DBG_FPD_CTRL,
> +        .reset = 0x1002500,
> +        .rsvd = 0xfeffc0f8,
> +    },{ .name = "DP_VIDEO_REF_CTRL",  .addr = A_DP_VIDEO_REF_CTRL,
> +        .reset = 0x1002300,
> +        .rsvd = 0xfec0c0f8,
> +    },{ .name = "DP_AUDIO_REF_CTRL",  .addr = A_DP_AUDIO_REF_CTRL,
> +        .reset = 0x1032300,
> +        .rsvd = 0xfec0c0f8,
> +    },{ .name = "DP_STC_REF_CTRL",  .addr = A_DP_STC_REF_CTRL,
> +        .reset = 0x1203200,
> +        .rsvd = 0xfec0c0f8,
> +    },{ .name = "DDR_CTRL",  .addr = A_DDR_CTRL,
> +        .reset = 0x1000500,
> +        .rsvd = 0xfeffc0f8,
> +    },{ .name = "GPU_REF_CTRL",  .addr = A_GPU_REF_CTRL,
> +        .reset = 0x1500,
> +        .rsvd = 0xf8ffc0f8,
> +    },{ .name = "SATA_REF_CTRL",  .addr = A_SATA_REF_CTRL,
> +        .reset = 0x1001600,
> +        .rsvd = 0xfeffc0f8,
> +    },{ .name = "PCIE_REF_CTRL",  .addr = A_PCIE_REF_CTRL,
> +        .reset = 0x1500,
> +        .rsvd = 0xfeffc0f8,
> +    },{ .name = "GDMA_REF_CTRL",  .addr = A_GDMA_REF_CTRL,
> +        .reset = 0x1000500,
> +        .rsvd = 0xfeffc0f8,
> +    },{ .name = "DPDMA_REF_CTRL",  .addr = A_DPDMA_REF_CTRL,
> +        .reset = 0x1000500,
> +        .rsvd = 0xfeffc0f8,
> +    },{ .name = "TOPSW_MAIN_CTRL",  .addr = A_TOPSW_MAIN_CTRL,
> +        .reset = 0x1000400,
> +        .rsvd = 0xfeffc0f8,
> +    },{ .name = "TOPSW_LSBUS_CTRL",  .addr = A_TOPSW_LSBUS_CTRL,
> +        .reset = 0x1000800,
> +        .rsvd = 0xfeffc0f8,
> +    },{ .name = "DBG_TSTMP_CTRL",  .addr = A_DBG_TSTMP_CTRL,
> +        .reset = 0xa00,
> +        .rsvd = 0xffffc0f8,
> +    },
> +    {   .name = "RST_FPD_TOP",  .addr = A_RST_FPD_TOP,
> +        .reset = 0xf9ffe,
> +        .rsvd = 0xf06001,
> +    },{ .name = "RST_FPD_APU",  .addr = A_RST_FPD_APU,
> +        .reset = 0x3d0f,
> +        .rsvd = 0xc2f0,
> +        .pre_write = rst_fpd_apu_prew,
> +    },{ .name = "RST_DDR_SS",  .addr = A_RST_DDR_SS,
> +        .reset = 0xf,
> +        .rsvd = 0xf3,
> +    }
> +};
> +
> +static void crf_reset_enter(Object *obj, ResetType type)
> +{
> +    XlnxZynqMPCRF *s = XILINX_CRF(obj);
> +    unsigned int i;
> +
> +    for (i = 0; i < ARRAY_SIZE(s->regs_info); ++i) {
> +        register_reset(&s->regs_info[i]);
> +    }
> +}
> +
> +static void crf_reset_hold(Object *obj)
> +{
> +    XlnxZynqMPCRF *s = XILINX_CRF(obj);
> +    ir_update_irq(s);
> +}
> +
> +static const MemoryRegionOps crf_ops = {
> +    .read = register_read_memory,
> +    .write = register_write_memory,
> +    .endianness = DEVICE_LITTLE_ENDIAN,
> +    .valid = {
> +        .min_access_size = 4,
> +        .max_access_size = 4,
> +    },
> +};
> +
> +static void crf_init(Object *obj)
> +{
> +    XlnxZynqMPCRF *s = XILINX_CRF(obj);
> +    SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
> +
> +    s->reg_array =
> +        register_init_block32(DEVICE(obj), crf_regs_info,
> +                              ARRAY_SIZE(crf_regs_info),
> +                              s->regs_info, s->regs,
> +                              &crf_ops,
> +                              XILINX_CRF_ERR_DEBUG,
> +                              CRF_R_MAX * 4);
> +    sysbus_init_mmio(sbd, &s->reg_array->mem);
> +    sysbus_init_irq(sbd, &s->irq_ir);
> +}
> +
> +static void crf_finalize(Object *obj)
> +{
> +    XlnxZynqMPCRF *s = XILINX_CRF(obj);
> +    register_finalize_block(s->reg_array);
> +}
> +
> +static const VMStateDescription vmstate_crf = {
> +    .name = TYPE_XLNX_ZYNQMP_CRF,
> +    .version_id = 1,
> +    .minimum_version_id = 1,
> +    .minimum_version_id_old = 1,
> +    .fields = (VMStateField[]) {
> +        VMSTATE_UINT32_ARRAY(regs, XlnxZynqMPCRF, CRF_R_MAX),
> +        VMSTATE_END_OF_LIST(),
> +    }
> +};
> +
> +static void crf_class_init(ObjectClass *klass, void *data)
> +{
> +    ResettableClass *rc = RESETTABLE_CLASS(klass);
> +    DeviceClass *dc = DEVICE_CLASS(klass);
> +
> +    dc->vmsd = &vmstate_crf;
> +    rc->phases.enter = crf_reset_enter;
> +    rc->phases.hold = crf_reset_hold;
> +}
> +
> +static const TypeInfo crf_info = {
> +    .name              = TYPE_XLNX_ZYNQMP_CRF,
> +    .parent            = TYPE_SYS_BUS_DEVICE,
> +    .instance_size     = sizeof(XlnxZynqMPCRF),
> +    .class_init        = crf_class_init,
> +    .instance_init     = crf_init,
> +    .instance_finalize = crf_finalize,
> +    .interfaces        = (InterfaceInfo[]) {
> +        { }

We can remove above 'interfaces'. With above removed and include guards
added:

Reviewed-by: Francisco Iglesias <francisco.iglesias@xilinx.com>

Best regards,
Francisco Iglesias

> +    },
> +};
> +
> +static void crf_register_types(void)
> +{
> +    type_register_static(&crf_info);
> +}
> +
> +type_init(crf_register_types)
> diff --git a/hw/misc/meson.build b/hw/misc/meson.build
> index 6dcbe044f3..1927f13a5e 100644
> --- a/hw/misc/meson.build
> +++ b/hw/misc/meson.build
> @@ -84,6 +84,7 @@ softmmu_ss.add(when: 'CONFIG_RASPI', if_true: files(
>  ))
>  softmmu_ss.add(when: 'CONFIG_SLAVIO', if_true: files('slavio_misc.c'))
>  softmmu_ss.add(when: 'CONFIG_ZYNQ', if_true: files('zynq_slcr.c'))
> +specific_ss.add(when: 'CONFIG_XLNX_ZYNQMP_ARM', if_true: files('xlnx-zynqmp-crf.c'))
>  softmmu_ss.add(when: 'CONFIG_XLNX_VERSAL', if_true: files(
>    'xlnx-versal-xramc.c',
>    'xlnx-versal-pmc-iou-slcr.c',
> -- 
> 2.25.1
>
Edgar E. Iglesias Jan. 31, 2022, 5:27 p.m. UTC | #2 
On Mon, Jan 31, 2022 at 03:35:57PM +0000, Francisco Iglesias wrote:
> Hi Edgar,
> 
> A couple of minor comments below, looks good to me otherwise!
> 
> On Mon, Jan 31, 2022 at 12:12:03AM +0100, Edgar E. Iglesias wrote:
> > From: "Edgar E. Iglesias" <edgar.iglesias@xilinx.com>
> > 
> > Add a model of the Xilinx ZynqMP CRF. At the moment this
> > is mostly a stub model.
> > 
> > Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
> > ---
> >  include/hw/misc/xlnx-zynqmp-crf.h | 209 +++++++++++++++++++++++
> >  hw/misc/xlnx-zynqmp-crf.c         | 270 ++++++++++++++++++++++++++++++
> >  hw/misc/meson.build               |   1 +
> >  3 files changed, 480 insertions(+)
> >  create mode 100644 include/hw/misc/xlnx-zynqmp-crf.h
> >  create mode 100644 hw/misc/xlnx-zynqmp-crf.c
> > 
> > diff --git a/include/hw/misc/xlnx-zynqmp-crf.h b/include/hw/misc/xlnx-zynqmp-crf.h
> > new file mode 100644
> > index 0000000000..b173ea4a08
> > --- /dev/null
> > +++ b/include/hw/misc/xlnx-zynqmp-crf.h
> > @@ -0,0 +1,209 @@
> > +/*
> > + * QEMU model of the CRF - Clock Reset FPD.
> > + *
> > + * Copyright (c) 2022 Xilinx Inc.
> > + * SPDX-License-Identifier: GPL-2.0-or-later
> > + * Written by Edgar E. Iglesias <edgar.iglesias@xilinx.com>
> > + */
> > +
> 
> Include guard seem to be missing:
> 
> #ifndef XLNX_ZYNQMP_CRF_H
> #define XLNX_ZYNQMP_CRF_H
> 
> 
> > +#include "hw/sysbus.h"
> > +#include "hw/register.h"
> > +
> > +#define TYPE_XLNX_ZYNQMP_CRF "xlnx.zynqmp_crf"
> > +
> > +#define XILINX_CRF(obj) \
> > +     OBJECT_CHECK(XlnxZynqMPCRF, (obj), TYPE_XLNX_ZYNQMP_CRF)
> > +
> > +REG32(ERR_CTRL, 0x0)
> 
> (Optional but in case the these ones wont be used outside
> xlnx-zynqmp-crf.c we could consider placing them there).


Hi,

Yeah, I thought about that but the issue is with defining:

#define CRF_R_MAX (R_RST_DDR_SS + 1)

We could move these regdefs out and hardcode CRF_R_MAX, e.g:
#define CRF_R_MAX (0x108 / 4)

But that seems error-phrone.
The trade-off is keeping them here and pollute the name-space.
I already to rename one of these macros to avoid conflict...

Does someone have other ideas or preferences?

Cheers,
Edgar

....

> > +REG32(RST_DDR_SS, 0x108)
> > +    FIELD(RST_DDR_SS, DDR_RESET, 3, 1)
> > +    FIELD(RST_DDR_SS, APM_RESET, 2, 1)
> > +
> > +#define CRF_R_MAX (R_RST_DDR_SS + 1)
> > +
> > +typedef struct XlnxZynqMPCRF {
> > +    SysBusDevice parent_obj;
> > +    MemoryRegion iomem;
> > +    qemu_irq irq_ir;
> > +
> > +    RegisterInfoArray *reg_array;
> > +    uint32_t regs[CRF_R_MAX];
> > +    RegisterInfo regs_info[CRF_R_MAX];
> > +} XlnxZynqMPCRF;
Edgar E. Iglesias Jan. 31, 2022, 5:51 p.m. UTC | #3 
On Mon, Jan 31, 2022 at 06:27:09PM +0100, Edgar E. Iglesias wrote:
> On Mon, Jan 31, 2022 at 03:35:57PM +0000, Francisco Iglesias wrote:
> > Hi Edgar,
> > 
> > A couple of minor comments below, looks good to me otherwise!
> > 
> > On Mon, Jan 31, 2022 at 12:12:03AM +0100, Edgar E. Iglesias wrote:
> > > From: "Edgar E. Iglesias" <edgar.iglesias@xilinx.com>
> > > 
> > > Add a model of the Xilinx ZynqMP CRF. At the moment this
> > > is mostly a stub model.
> > > 
> > > Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
> > > ---
> > >  include/hw/misc/xlnx-zynqmp-crf.h | 209 +++++++++++++++++++++++
> > >  hw/misc/xlnx-zynqmp-crf.c         | 270 ++++++++++++++++++++++++++++++
> > >  hw/misc/meson.build               |   1 +
> > >  3 files changed, 480 insertions(+)
> > >  create mode 100644 include/hw/misc/xlnx-zynqmp-crf.h
> > >  create mode 100644 hw/misc/xlnx-zynqmp-crf.c
> > > 
> > > diff --git a/include/hw/misc/xlnx-zynqmp-crf.h b/include/hw/misc/xlnx-zynqmp-crf.h
> > > new file mode 100644
> > > index 0000000000..b173ea4a08
> > > --- /dev/null
> > > +++ b/include/hw/misc/xlnx-zynqmp-crf.h
> > > @@ -0,0 +1,209 @@
> > > +/*
> > > + * QEMU model of the CRF - Clock Reset FPD.
> > > + *
> > > + * Copyright (c) 2022 Xilinx Inc.
> > > + * SPDX-License-Identifier: GPL-2.0-or-later
> > > + * Written by Edgar E. Iglesias <edgar.iglesias@xilinx.com>
> > > + */
> > > +
> > 
> > Include guard seem to be missing:
> > 
> > #ifndef XLNX_ZYNQMP_CRF_H
> > #define XLNX_ZYNQMP_CRF_H
> > 
> > 
> > > +#include "hw/sysbus.h"
> > > +#include "hw/register.h"
> > > +
> > > +#define TYPE_XLNX_ZYNQMP_CRF "xlnx.zynqmp_crf"
> > > +
> > > +#define XILINX_CRF(obj) \
> > > +     OBJECT_CHECK(XlnxZynqMPCRF, (obj), TYPE_XLNX_ZYNQMP_CRF)
> > > +
> > > +REG32(ERR_CTRL, 0x0)
> > 
> > (Optional but in case the these ones wont be used outside
> > xlnx-zynqmp-crf.c we could consider placing them there).
> 
> 
> Hi,
> 
> Yeah, I thought about that but the issue is with defining:
> 
> #define CRF_R_MAX (R_RST_DDR_SS + 1)
> 
> We could move these regdefs out and hardcode CRF_R_MAX, e.g:
> #define CRF_R_MAX (0x108 / 4)
> 
> But that seems error-phrone.
> The trade-off is keeping them here and pollute the name-space.
> I already to rename one of these macros to avoid conflict...
> 
> Does someone have other ideas or preferences?

I guess we could xlnx-zynqmp-crf.h:
#define CRF_R_MAX ((0x108 / 4) + 1)

and in xlnx-zynqmp-crf.c crf_init():
assert((R_RST_DDR_SS + 1) == CRF_R_MAX);

Or something along those lines...


> 
> Cheers,
> Edgar
> 
> ....
> 
> > > +REG32(RST_DDR_SS, 0x108)
> > > +    FIELD(RST_DDR_SS, DDR_RESET, 3, 1)
> > > +    FIELD(RST_DDR_SS, APM_RESET, 2, 1)
> > > +
> > > +#define CRF_R_MAX (R_RST_DDR_SS + 1)
> > > +
> > > +typedef struct XlnxZynqMPCRF {
> > > +    SysBusDevice parent_obj;
> > > +    MemoryRegion iomem;
> > > +    qemu_irq irq_ir;
> > > +
> > > +    RegisterInfoArray *reg_array;
> > > +    uint32_t regs[CRF_R_MAX];
> > > +    RegisterInfo regs_info[CRF_R_MAX];
> > > +} XlnxZynqMPCRF;
diff mbox series

Patch

diff --git a/include/hw/misc/xlnx-zynqmp-crf.h b/include/hw/misc/xlnx-zynqmp-crf.h
new file mode 100644
index 0000000000..b173ea4a08
--- /dev/null
+++ b/include/hw/misc/xlnx-zynqmp-crf.h
@@ -0,0 +1,209 @@ 
+/*
+ * QEMU model of the CRF - Clock Reset FPD.
+ *
+ * Copyright (c) 2022 Xilinx Inc.
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ * Written by Edgar E. Iglesias <edgar.iglesias@xilinx.com>
+ */
+
+#include "hw/sysbus.h"
+#include "hw/register.h"
+
+#define TYPE_XLNX_ZYNQMP_CRF "xlnx.zynqmp_crf"
+
+#define XILINX_CRF(obj) \
+     OBJECT_CHECK(XlnxZynqMPCRF, (obj), TYPE_XLNX_ZYNQMP_CRF)
+
+REG32(ERR_CTRL, 0x0)
+    FIELD(ERR_CTRL, SLVERR_ENABLE, 0, 1)
+REG32(IR_STATUS, 0x4)
+    FIELD(IR_STATUS, ADDR_DECODE_ERR, 0, 1)
+REG32(IR_MASK, 0x8)
+    FIELD(IR_MASK, ADDR_DECODE_ERR, 0, 1)
+REG32(IR_ENABLE, 0xc)
+    FIELD(IR_ENABLE, ADDR_DECODE_ERR, 0, 1)
+REG32(IR_DISABLE, 0x10)
+    FIELD(IR_DISABLE, ADDR_DECODE_ERR, 0, 1)
+REG32(CRF_WPROT, 0x1c)
+    FIELD(CRF_WPROT, ACTIVE, 0, 1)
+REG32(APLL_CTRL, 0x20)
+    FIELD(APLL_CTRL, POST_SRC, 24, 3)
+    FIELD(APLL_CTRL, PRE_SRC, 20, 3)
+    FIELD(APLL_CTRL, CLKOUTDIV, 17, 1)
+    FIELD(APLL_CTRL, DIV2, 16, 1)
+    FIELD(APLL_CTRL, FBDIV, 8, 7)
+    FIELD(APLL_CTRL, BYPASS, 3, 1)
+    FIELD(APLL_CTRL, RESET, 0, 1)
+REG32(APLL_CFG, 0x24)
+    FIELD(APLL_CFG, LOCK_DLY, 25, 7)
+    FIELD(APLL_CFG, LOCK_CNT, 13, 10)
+    FIELD(APLL_CFG, LFHF, 10, 2)
+    FIELD(APLL_CFG, CP, 5, 4)
+    FIELD(APLL_CFG, RES, 0, 4)
+REG32(APLL_FRAC_CFG, 0x28)
+    FIELD(APLL_FRAC_CFG, ENABLED, 31, 1)
+    FIELD(APLL_FRAC_CFG, SEED, 22, 3)
+    FIELD(APLL_FRAC_CFG, ALGRTHM, 19, 1)
+    FIELD(APLL_FRAC_CFG, ORDER, 18, 1)
+    FIELD(APLL_FRAC_CFG, DATA, 0, 16)
+REG32(DPLL_CTRL, 0x2c)
+    FIELD(DPLL_CTRL, POST_SRC, 24, 3)
+    FIELD(DPLL_CTRL, PRE_SRC, 20, 3)
+    FIELD(DPLL_CTRL, CLKOUTDIV, 17, 1)
+    FIELD(DPLL_CTRL, DIV2, 16, 1)
+    FIELD(DPLL_CTRL, FBDIV, 8, 7)
+    FIELD(DPLL_CTRL, BYPASS, 3, 1)
+    FIELD(DPLL_CTRL, RESET, 0, 1)
+REG32(DPLL_CFG, 0x30)
+    FIELD(DPLL_CFG, LOCK_DLY, 25, 7)
+    FIELD(DPLL_CFG, LOCK_CNT, 13, 10)
+    FIELD(DPLL_CFG, LFHF, 10, 2)
+    FIELD(DPLL_CFG, CP, 5, 4)
+    FIELD(DPLL_CFG, RES, 0, 4)
+REG32(DPLL_FRAC_CFG, 0x34)
+    FIELD(DPLL_FRAC_CFG, ENABLED, 31, 1)
+    FIELD(DPLL_FRAC_CFG, SEED, 22, 3)
+    FIELD(DPLL_FRAC_CFG, ALGRTHM, 19, 1)
+    FIELD(DPLL_FRAC_CFG, ORDER, 18, 1)
+    FIELD(DPLL_FRAC_CFG, DATA, 0, 16)
+REG32(VPLL_CTRL, 0x38)
+    FIELD(VPLL_CTRL, POST_SRC, 24, 3)
+    FIELD(VPLL_CTRL, PRE_SRC, 20, 3)
+    FIELD(VPLL_CTRL, CLKOUTDIV, 17, 1)
+    FIELD(VPLL_CTRL, DIV2, 16, 1)
+    FIELD(VPLL_CTRL, FBDIV, 8, 7)
+    FIELD(VPLL_CTRL, BYPASS, 3, 1)
+    FIELD(VPLL_CTRL, RESET, 0, 1)
+REG32(VPLL_CFG, 0x3c)
+    FIELD(VPLL_CFG, LOCK_DLY, 25, 7)
+    FIELD(VPLL_CFG, LOCK_CNT, 13, 10)
+    FIELD(VPLL_CFG, LFHF, 10, 2)
+    FIELD(VPLL_CFG, CP, 5, 4)
+    FIELD(VPLL_CFG, RES, 0, 4)
+REG32(VPLL_FRAC_CFG, 0x40)
+    FIELD(VPLL_FRAC_CFG, ENABLED, 31, 1)
+    FIELD(VPLL_FRAC_CFG, SEED, 22, 3)
+    FIELD(VPLL_FRAC_CFG, ALGRTHM, 19, 1)
+    FIELD(VPLL_FRAC_CFG, ORDER, 18, 1)
+    FIELD(VPLL_FRAC_CFG, DATA, 0, 16)
+REG32(PLL_STATUS, 0x44)
+    FIELD(PLL_STATUS, VPLL_STABLE, 5, 1)
+    FIELD(PLL_STATUS, DPLL_STABLE, 4, 1)
+    FIELD(PLL_STATUS, APLL_STABLE, 3, 1)
+    FIELD(PLL_STATUS, VPLL_LOCK, 2, 1)
+    FIELD(PLL_STATUS, DPLL_LOCK, 1, 1)
+    FIELD(PLL_STATUS, APLL_LOCK, 0, 1)
+REG32(APLL_TO_LPD_CTRL, 0x48)
+    FIELD(APLL_TO_LPD_CTRL, DIVISOR0, 8, 6)
+REG32(DPLL_TO_LPD_CTRL, 0x4c)
+    FIELD(DPLL_TO_LPD_CTRL, DIVISOR0, 8, 6)
+REG32(VPLL_TO_LPD_CTRL, 0x50)
+    FIELD(VPLL_TO_LPD_CTRL, DIVISOR0, 8, 6)
+REG32(ACPU_CTRL, 0x60)
+    FIELD(ACPU_CTRL, CLKACT_HALF, 25, 1)
+    FIELD(ACPU_CTRL, CLKACT_FULL, 24, 1)
+    FIELD(ACPU_CTRL, DIVISOR0, 8, 6)
+    FIELD(ACPU_CTRL, SRCSEL, 0, 3)
+REG32(DBG_TRACE_CTRL, 0x64)
+    FIELD(DBG_TRACE_CTRL, CLKACT, 24, 1)
+    FIELD(DBG_TRACE_CTRL, DIVISOR0, 8, 6)
+    FIELD(DBG_TRACE_CTRL, SRCSEL, 0, 3)
+REG32(DBG_FPD_CTRL, 0x68)
+    FIELD(DBG_FPD_CTRL, CLKACT, 24, 1)
+    FIELD(DBG_FPD_CTRL, DIVISOR0, 8, 6)
+    FIELD(DBG_FPD_CTRL, SRCSEL, 0, 3)
+REG32(DP_VIDEO_REF_CTRL, 0x70)
+    FIELD(DP_VIDEO_REF_CTRL, CLKACT, 24, 1)
+    FIELD(DP_VIDEO_REF_CTRL, DIVISOR1, 16, 6)
+    FIELD(DP_VIDEO_REF_CTRL, DIVISOR0, 8, 6)
+    FIELD(DP_VIDEO_REF_CTRL, SRCSEL, 0, 3)
+REG32(DP_AUDIO_REF_CTRL, 0x74)
+    FIELD(DP_AUDIO_REF_CTRL, CLKACT, 24, 1)
+    FIELD(DP_AUDIO_REF_CTRL, DIVISOR1, 16, 6)
+    FIELD(DP_AUDIO_REF_CTRL, DIVISOR0, 8, 6)
+    FIELD(DP_AUDIO_REF_CTRL, SRCSEL, 0, 3)
+REG32(DP_STC_REF_CTRL, 0x7c)
+    FIELD(DP_STC_REF_CTRL, CLKACT, 24, 1)
+    FIELD(DP_STC_REF_CTRL, DIVISOR1, 16, 6)
+    FIELD(DP_STC_REF_CTRL, DIVISOR0, 8, 6)
+    FIELD(DP_STC_REF_CTRL, SRCSEL, 0, 3)
+REG32(DDR_CTRL, 0x80)
+    FIELD(DDR_CTRL, CLKACT, 24, 1)
+    FIELD(DDR_CTRL, DIVISOR0, 8, 6)
+    FIELD(DDR_CTRL, SRCSEL, 0, 3)
+REG32(GPU_REF_CTRL, 0x84)
+    FIELD(GPU_REF_CTRL, PP1_CLKACT, 26, 1)
+    FIELD(GPU_REF_CTRL, PP0_CLKACT, 25, 1)
+    FIELD(GPU_REF_CTRL, CLKACT, 24, 1)
+    FIELD(GPU_REF_CTRL, DIVISOR0, 8, 6)
+    FIELD(GPU_REF_CTRL, SRCSEL, 0, 3)
+REG32(SATA_REF_CTRL, 0xa0)
+    FIELD(SATA_REF_CTRL, CLKACT, 24, 1)
+    FIELD(SATA_REF_CTRL, DIVISOR0, 8, 6)
+    FIELD(SATA_REF_CTRL, SRCSEL, 0, 3)
+REG32(PCIE_REF_CTRL, 0xb4)
+    FIELD(PCIE_REF_CTRL, CLKACT, 24, 1)
+    FIELD(PCIE_REF_CTRL, DIVISOR0, 8, 6)
+    FIELD(PCIE_REF_CTRL, SRCSEL, 0, 3)
+REG32(GDMA_REF_CTRL, 0xb8)
+    FIELD(GDMA_REF_CTRL, CLKACT, 24, 1)
+    FIELD(GDMA_REF_CTRL, DIVISOR0, 8, 6)
+    FIELD(GDMA_REF_CTRL, SRCSEL, 0, 3)
+REG32(DPDMA_REF_CTRL, 0xbc)
+    FIELD(DPDMA_REF_CTRL, CLKACT, 24, 1)
+    FIELD(DPDMA_REF_CTRL, DIVISOR0, 8, 6)
+    FIELD(DPDMA_REF_CTRL, SRCSEL, 0, 3)
+REG32(TOPSW_MAIN_CTRL, 0xc0)
+    FIELD(TOPSW_MAIN_CTRL, CLKACT, 24, 1)
+    FIELD(TOPSW_MAIN_CTRL, DIVISOR0, 8, 6)
+    FIELD(TOPSW_MAIN_CTRL, SRCSEL, 0, 3)
+REG32(TOPSW_LSBUS_CTRL, 0xc4)
+    FIELD(TOPSW_LSBUS_CTRL, CLKACT, 24, 1)
+    FIELD(TOPSW_LSBUS_CTRL, DIVISOR0, 8, 6)
+    FIELD(TOPSW_LSBUS_CTRL, SRCSEL, 0, 3)
+REG32(DBG_TSTMP_CTRL, 0xf8)
+    FIELD(DBG_TSTMP_CTRL, DIVISOR0, 8, 6)
+    FIELD(DBG_TSTMP_CTRL, SRCSEL, 0, 3)
+REG32(RST_FPD_TOP, 0x100)
+    FIELD(RST_FPD_TOP, PCIE_CFG_RESET, 19, 1)
+    FIELD(RST_FPD_TOP, PCIE_BRIDGE_RESET, 18, 1)
+    FIELD(RST_FPD_TOP, PCIE_CTRL_RESET, 17, 1)
+    FIELD(RST_FPD_TOP, DP_RESET, 16, 1)
+    FIELD(RST_FPD_TOP, SWDT_RESET, 15, 1)
+    FIELD(RST_FPD_TOP, AFI_FM5_RESET, 12, 1)
+    FIELD(RST_FPD_TOP, AFI_FM4_RESET, 11, 1)
+    FIELD(RST_FPD_TOP, AFI_FM3_RESET, 10, 1)
+    FIELD(RST_FPD_TOP, AFI_FM2_RESET, 9, 1)
+    FIELD(RST_FPD_TOP, AFI_FM1_RESET, 8, 1)
+    FIELD(RST_FPD_TOP, AFI_FM0_RESET, 7, 1)
+    FIELD(RST_FPD_TOP, GDMA_RESET, 6, 1)
+    FIELD(RST_FPD_TOP, GPU_PP1_RESET, 5, 1)
+    FIELD(RST_FPD_TOP, GPU_PP0_RESET, 4, 1)
+    FIELD(RST_FPD_TOP, GPU_RESET, 3, 1)
+    FIELD(RST_FPD_TOP, GT_RESET, 2, 1)
+    FIELD(RST_FPD_TOP, SATA_RESET, 1, 1)
+REG32(RST_FPD_APU, 0x104)
+    FIELD(RST_FPD_APU, ACPU3_PWRON_RESET, 13, 1)
+    FIELD(RST_FPD_APU, ACPU2_PWRON_RESET, 12, 1)
+    FIELD(RST_FPD_APU, ACPU1_PWRON_RESET, 11, 1)
+    FIELD(RST_FPD_APU, ACPU0_PWRON_RESET, 10, 1)
+    FIELD(RST_FPD_APU, APU_L2_RESET, 8, 1)
+    FIELD(RST_FPD_APU, ACPU3_RESET, 3, 1)
+    FIELD(RST_FPD_APU, ACPU2_RESET, 2, 1)
+    FIELD(RST_FPD_APU, ACPU1_RESET, 1, 1)
+    FIELD(RST_FPD_APU, ACPU0_RESET, 0, 1)
+REG32(RST_DDR_SS, 0x108)
+    FIELD(RST_DDR_SS, DDR_RESET, 3, 1)
+    FIELD(RST_DDR_SS, APM_RESET, 2, 1)
+
+#define CRF_R_MAX (R_RST_DDR_SS + 1)
+
+typedef struct XlnxZynqMPCRF {
+    SysBusDevice parent_obj;
+    MemoryRegion iomem;
+    qemu_irq irq_ir;
+
+    RegisterInfoArray *reg_array;
+    uint32_t regs[CRF_R_MAX];
+    RegisterInfo regs_info[CRF_R_MAX];
+} XlnxZynqMPCRF;
diff --git a/hw/misc/xlnx-zynqmp-crf.c b/hw/misc/xlnx-zynqmp-crf.c
new file mode 100644
index 0000000000..7b3a955a42
--- /dev/null
+++ b/hw/misc/xlnx-zynqmp-crf.c
@@ -0,0 +1,270 @@ 
+/*
+ * QEMU model of the CRF - Clock Reset FPD.
+ *
+ * Copyright (c) 2022 Xilinx Inc.
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ * Written by Edgar E. Iglesias <edgar.iglesias@xilinx.com>
+ */
+
+#include "qemu/osdep.h"
+#include "hw/sysbus.h"
+#include "hw/register.h"
+#include "qemu/bitops.h"
+#include "qemu/log.h"
+#include "migration/vmstate.h"
+#include "hw/irq.h"
+#include "hw/misc/xlnx-zynqmp-crf.h"
+#include "target/arm/arm-powerctl.h"
+
+#ifndef XILINX_CRF_ERR_DEBUG
+#define XILINX_CRF_ERR_DEBUG 1
+#endif
+
+#define APU_MAX_CPU    4
+
+static void ir_update_irq(XlnxZynqMPCRF *s)
+{
+    bool pending = 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)
+{
+    XlnxZynqMPCRF *s = XILINX_CRF(reg->opaque);
+    ir_update_irq(s);
+}
+
+static uint64_t ir_enable_prew(RegisterInfo *reg, uint64_t val64)
+{
+    XlnxZynqMPCRF *s = XILINX_CRF(reg->opaque);
+    uint32_t val = val64;
+
+    s->regs[R_IR_MASK] &= ~val;
+    ir_update_irq(s);
+    return 0;
+}
+
+static uint64_t ir_disable_prew(RegisterInfo *reg, uint64_t val64)
+{
+    XlnxZynqMPCRF *s = XILINX_CRF(reg->opaque);
+    uint32_t val = val64;
+
+    s->regs[R_IR_MASK] |= val;
+    ir_update_irq(s);
+    return 0;
+}
+
+static uint64_t rst_fpd_apu_prew(RegisterInfo *reg, uint64_t val64)
+{
+    XlnxZynqMPCRF *s = XILINX_CRF(reg->opaque);
+    uint32_t val = val64;
+    uint32_t val_old = s->regs[R_RST_FPD_APU];
+    unsigned int i;
+
+    for (i = 0; i < APU_MAX_CPU; i++) {
+        uint32_t mask = (1 << (R_RST_FPD_APU_ACPU0_RESET_SHIFT + i));
+
+        if ((val ^ val_old) & mask) {
+            if (val & mask) {
+                arm_set_cpu_off(i);
+            } else {
+                arm_set_cpu_on_and_reset(i);
+            }
+        }
+    }
+    return val64;
+}
+
+static const RegisterAccessInfo crf_regs_info[] = {
+    {   .name = "ERR_CTRL",  .addr = A_ERR_CTRL,
+    },{ .name = "IR_STATUS",  .addr = A_IR_STATUS,
+        .w1c = 0x1,
+        .post_write = ir_status_postw,
+    },{ .name = "IR_MASK",  .addr = A_IR_MASK,
+        .reset = 0x1,
+        .ro = 0x1,
+    },{ .name = "IR_ENABLE",  .addr = A_IR_ENABLE,
+        .pre_write = ir_enable_prew,
+    },{ .name = "IR_DISABLE",  .addr = A_IR_DISABLE,
+        .pre_write = ir_disable_prew,
+    },{ .name = "CRF_WPROT",  .addr = A_CRF_WPROT,
+    },{ .name = "APLL_CTRL",  .addr = A_APLL_CTRL,
+        .reset = 0x12c09,
+        .rsvd = 0xf88c80f6,
+    },{ .name = "APLL_CFG",  .addr = A_APLL_CFG,
+        .rsvd = 0x1801210,
+    },{ .name = "APLL_FRAC_CFG",  .addr = A_APLL_FRAC_CFG,
+        .rsvd = 0x7e330000,
+    },{ .name = "DPLL_CTRL",  .addr = A_DPLL_CTRL,
+        .reset = 0x2c09,
+        .rsvd = 0xf88c80f6,
+    },{ .name = "DPLL_CFG",  .addr = A_DPLL_CFG,
+        .rsvd = 0x1801210,
+    },{ .name = "DPLL_FRAC_CFG",  .addr = A_DPLL_FRAC_CFG,
+        .rsvd = 0x7e330000,
+    },{ .name = "VPLL_CTRL",  .addr = A_VPLL_CTRL,
+        .reset = 0x12809,
+        .rsvd = 0xf88c80f6,
+    },{ .name = "VPLL_CFG",  .addr = A_VPLL_CFG,
+        .rsvd = 0x1801210,
+    },{ .name = "VPLL_FRAC_CFG",  .addr = A_VPLL_FRAC_CFG,
+        .rsvd = 0x7e330000,
+    },{ .name = "PLL_STATUS",  .addr = A_PLL_STATUS,
+        .reset = 0x3f,
+        .rsvd = 0xc0,
+        .ro = 0x3f,
+    },{ .name = "APLL_TO_LPD_CTRL",  .addr = A_APLL_TO_LPD_CTRL,
+        .reset = 0x400,
+        .rsvd = 0xc0ff,
+    },{ .name = "DPLL_TO_LPD_CTRL",  .addr = A_DPLL_TO_LPD_CTRL,
+        .reset = 0x400,
+        .rsvd = 0xc0ff,
+    },{ .name = "VPLL_TO_LPD_CTRL",  .addr = A_VPLL_TO_LPD_CTRL,
+        .reset = 0x400,
+        .rsvd = 0xc0ff,
+    },{ .name = "ACPU_CTRL",  .addr = A_ACPU_CTRL,
+        .reset = 0x3000400,
+        .rsvd = 0xfcffc0f8,
+    },{ .name = "DBG_TRACE_CTRL",  .addr = A_DBG_TRACE_CTRL,
+        .reset = 0x2500,
+        .rsvd = 0xfeffc0f8,
+    },{ .name = "DBG_FPD_CTRL",  .addr = A_DBG_FPD_CTRL,
+        .reset = 0x1002500,
+        .rsvd = 0xfeffc0f8,
+    },{ .name = "DP_VIDEO_REF_CTRL",  .addr = A_DP_VIDEO_REF_CTRL,
+        .reset = 0x1002300,
+        .rsvd = 0xfec0c0f8,
+    },{ .name = "DP_AUDIO_REF_CTRL",  .addr = A_DP_AUDIO_REF_CTRL,
+        .reset = 0x1032300,
+        .rsvd = 0xfec0c0f8,
+    },{ .name = "DP_STC_REF_CTRL",  .addr = A_DP_STC_REF_CTRL,
+        .reset = 0x1203200,
+        .rsvd = 0xfec0c0f8,
+    },{ .name = "DDR_CTRL",  .addr = A_DDR_CTRL,
+        .reset = 0x1000500,
+        .rsvd = 0xfeffc0f8,
+    },{ .name = "GPU_REF_CTRL",  .addr = A_GPU_REF_CTRL,
+        .reset = 0x1500,
+        .rsvd = 0xf8ffc0f8,
+    },{ .name = "SATA_REF_CTRL",  .addr = A_SATA_REF_CTRL,
+        .reset = 0x1001600,
+        .rsvd = 0xfeffc0f8,
+    },{ .name = "PCIE_REF_CTRL",  .addr = A_PCIE_REF_CTRL,
+        .reset = 0x1500,
+        .rsvd = 0xfeffc0f8,
+    },{ .name = "GDMA_REF_CTRL",  .addr = A_GDMA_REF_CTRL,
+        .reset = 0x1000500,
+        .rsvd = 0xfeffc0f8,
+    },{ .name = "DPDMA_REF_CTRL",  .addr = A_DPDMA_REF_CTRL,
+        .reset = 0x1000500,
+        .rsvd = 0xfeffc0f8,
+    },{ .name = "TOPSW_MAIN_CTRL",  .addr = A_TOPSW_MAIN_CTRL,
+        .reset = 0x1000400,
+        .rsvd = 0xfeffc0f8,
+    },{ .name = "TOPSW_LSBUS_CTRL",  .addr = A_TOPSW_LSBUS_CTRL,
+        .reset = 0x1000800,
+        .rsvd = 0xfeffc0f8,
+    },{ .name = "DBG_TSTMP_CTRL",  .addr = A_DBG_TSTMP_CTRL,
+        .reset = 0xa00,
+        .rsvd = 0xffffc0f8,
+    },
+    {   .name = "RST_FPD_TOP",  .addr = A_RST_FPD_TOP,
+        .reset = 0xf9ffe,
+        .rsvd = 0xf06001,
+    },{ .name = "RST_FPD_APU",  .addr = A_RST_FPD_APU,
+        .reset = 0x3d0f,
+        .rsvd = 0xc2f0,
+        .pre_write = rst_fpd_apu_prew,
+    },{ .name = "RST_DDR_SS",  .addr = A_RST_DDR_SS,
+        .reset = 0xf,
+        .rsvd = 0xf3,
+    }
+};
+
+static void crf_reset_enter(Object *obj, ResetType type)
+{
+    XlnxZynqMPCRF *s = XILINX_CRF(obj);
+    unsigned int i;
+
+    for (i = 0; i < ARRAY_SIZE(s->regs_info); ++i) {
+        register_reset(&s->regs_info[i]);
+    }
+}
+
+static void crf_reset_hold(Object *obj)
+{
+    XlnxZynqMPCRF *s = XILINX_CRF(obj);
+    ir_update_irq(s);
+}
+
+static const MemoryRegionOps crf_ops = {
+    .read = register_read_memory,
+    .write = register_write_memory,
+    .endianness = DEVICE_LITTLE_ENDIAN,
+    .valid = {
+        .min_access_size = 4,
+        .max_access_size = 4,
+    },
+};
+
+static void crf_init(Object *obj)
+{
+    XlnxZynqMPCRF *s = XILINX_CRF(obj);
+    SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
+
+    s->reg_array =
+        register_init_block32(DEVICE(obj), crf_regs_info,
+                              ARRAY_SIZE(crf_regs_info),
+                              s->regs_info, s->regs,
+                              &crf_ops,
+                              XILINX_CRF_ERR_DEBUG,
+                              CRF_R_MAX * 4);
+    sysbus_init_mmio(sbd, &s->reg_array->mem);
+    sysbus_init_irq(sbd, &s->irq_ir);
+}
+
+static void crf_finalize(Object *obj)
+{
+    XlnxZynqMPCRF *s = XILINX_CRF(obj);
+    register_finalize_block(s->reg_array);
+}
+
+static const VMStateDescription vmstate_crf = {
+    .name = TYPE_XLNX_ZYNQMP_CRF,
+    .version_id = 1,
+    .minimum_version_id = 1,
+    .minimum_version_id_old = 1,
+    .fields = (VMStateField[]) {
+        VMSTATE_UINT32_ARRAY(regs, XlnxZynqMPCRF, CRF_R_MAX),
+        VMSTATE_END_OF_LIST(),
+    }
+};
+
+static void crf_class_init(ObjectClass *klass, void *data)
+{
+    ResettableClass *rc = RESETTABLE_CLASS(klass);
+    DeviceClass *dc = DEVICE_CLASS(klass);
+
+    dc->vmsd = &vmstate_crf;
+    rc->phases.enter = crf_reset_enter;
+    rc->phases.hold = crf_reset_hold;
+}
+
+static const TypeInfo crf_info = {
+    .name              = TYPE_XLNX_ZYNQMP_CRF,
+    .parent            = TYPE_SYS_BUS_DEVICE,
+    .instance_size     = sizeof(XlnxZynqMPCRF),
+    .class_init        = crf_class_init,
+    .instance_init     = crf_init,
+    .instance_finalize = crf_finalize,
+    .interfaces        = (InterfaceInfo[]) {
+        { }
+    },
+};
+
+static void crf_register_types(void)
+{
+    type_register_static(&crf_info);
+}
+
+type_init(crf_register_types)
diff --git a/hw/misc/meson.build b/hw/misc/meson.build
index 6dcbe044f3..1927f13a5e 100644
--- a/hw/misc/meson.build
+++ b/hw/misc/meson.build
@@ -84,6 +84,7 @@  softmmu_ss.add(when: 'CONFIG_RASPI', if_true: files(
 ))
 softmmu_ss.add(when: 'CONFIG_SLAVIO', if_true: files('slavio_misc.c'))
 softmmu_ss.add(when: 'CONFIG_ZYNQ', if_true: files('zynq_slcr.c'))
+specific_ss.add(when: 'CONFIG_XLNX_ZYNQMP_ARM', if_true: files('xlnx-zynqmp-crf.c'))
 softmmu_ss.add(when: 'CONFIG_XLNX_VERSAL', if_true: files(
   'xlnx-versal-xramc.c',
   'xlnx-versal-pmc-iou-slcr.c',