[v11,12/19] i.MX: Add SOC support for i.MX31

For now we support the following devices:
  * CPU: ARM1136
  * Interrupt Controller: AVIC
  * CCM
  * UART x 2
  * EPIT x 2
  * GPT

Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
---

Changes since v1:
    * not present on v1

Changes since v2:
    * not present on v2

Changes since v3:
    * not present on v3

Changes since v4:
    * not present on v4

Changes since v5:
    * not present on v5

Changes since v6:
    * not present on v6

Changes since v7:
    * not present on v7

Changes since v8:
    * use defines instead of hardcoded values for IRQ and ADDR
    * Add i.MX31 SOC support

Changes since v9:
    * no change.

Changes since v10:
    * added description of supported devices
    * rework of UART init to use chardev property
    * use memory_region_allocate_system_memory()
    * Fix coding style.

 default-configs/arm-softmmu.mak |   2 +
 hw/arm/Makefile.objs            |   1 +
 hw/arm/fsl-imx31.c              | 203 ++++++++++++++++++++++++++++++++++++++++
 include/hw/arm/fsl-imx31.h      |  98 +++++++++++++++++++
 4 files changed, 304 insertions(+)
 create mode 100644 hw/arm/fsl-imx31.c
 create mode 100644 include/hw/arm/fsl-imx31.h

On Wed, Jul 8, 2015 at 11:42 AM, Jean-Christophe Dubois
<jcd@tribudubois.net> wrote:
> For now we support the following devices:
>   * CPU: ARM1136
>   * Interrupt Controller: AVIC
>   * CCM
>   * UART x 2
>   * EPIT x 2
>   * GPT
>
> Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>

Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>

> ---
>
> Changes since v1:
>     * not present on v1
>
> Changes since v2:
>     * not present on v2
>
> Changes since v3:
>     * not present on v3
>
> Changes since v4:
>     * not present on v4
>
> Changes since v5:
>     * not present on v5
>
> Changes since v6:
>     * not present on v6
>
> Changes since v7:
>     * not present on v7
>
> Changes since v8:
>     * use defines instead of hardcoded values for IRQ and ADDR
>     * Add i.MX31 SOC support
>
> Changes since v9:
>     * no change.
>
> Changes since v10:
>     * added description of supported devices
>     * rework of UART init to use chardev property
>     * use memory_region_allocate_system_memory()
>     * Fix coding style.
>
>  default-configs/arm-softmmu.mak |   2 +
>  hw/arm/Makefile.objs            |   1 +
>  hw/arm/fsl-imx31.c              | 203 ++++++++++++++++++++++++++++++++++++++++
>  include/hw/arm/fsl-imx31.h      |  98 +++++++++++++++++++
>  4 files changed, 304 insertions(+)
>  create mode 100644 hw/arm/fsl-imx31.c
>  create mode 100644 include/hw/arm/fsl-imx31.h
>
> diff --git a/default-configs/arm-softmmu.mak b/default-configs/arm-softmmu.mak
> index 74f1db3..3f86e7e 100644
> --- a/default-configs/arm-softmmu.mak
> +++ b/default-configs/arm-softmmu.mak
> @@ -98,6 +98,8 @@ CONFIG_ALLWINNER_A10_PIT=y
>  CONFIG_ALLWINNER_A10_PIC=y
>  CONFIG_ALLWINNER_A10=y
>
> +CONFIG_FSL_IMX31=y
> +
>  CONFIG_XIO3130=y
>  CONFIG_IOH3420=y
>  CONFIG_I82801B11=y
> diff --git a/hw/arm/Makefile.objs b/hw/arm/Makefile.objs
> index cf346c1..f35f731 100644
> --- a/hw/arm/Makefile.objs
> +++ b/hw/arm/Makefile.objs
> @@ -13,3 +13,4 @@ obj-y += omap1.o omap2.o strongarm.o
>  obj-$(CONFIG_ALLWINNER_A10) += allwinner-a10.o cubieboard.o
>  obj-$(CONFIG_STM32F205_SOC) += stm32f205_soc.o
>  obj-$(CONFIG_XLNX_ZYNQMP) += xlnx-zynqmp.o xlnx-ep108.o
> +obj-$(CONFIG_FSL_IMX31) += fsl-imx31.o
> diff --git a/hw/arm/fsl-imx31.c b/hw/arm/fsl-imx31.c
> new file mode 100644
> index 0000000..8d349c9
> --- /dev/null
> +++ b/hw/arm/fsl-imx31.c
> @@ -0,0 +1,203 @@
> +/*
> + * Copyright (c) 2013 Jean-Christophe Dubois <jcd@tribudubois.net>
> + *
> + * i.MX31 SOC emulation.
> + *
> + * Based on hw/arm/fsl-imx31.c
> + *
> + *  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 of the License, or
> + *  (at your option) any later version.
> + *
> + *  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 "hw/arm/fsl-imx31.h"
> +#include "sysemu/sysemu.h"
> +#include "exec/address-spaces.h"
> +#include "hw/boards.h"
> +#include "sysemu/char.h"
> +
> +static void fsl_imx31_init(Object *obj)
> +{
> +    FslIMX31State *s = FSL_IMX31(obj);
> +    int i;
> +
> +    object_initialize(&s->cpu, sizeof(s->cpu), "arm1136-" TYPE_ARM_CPU);
> +
> +    object_initialize(&s->avic, sizeof(s->avic), TYPE_IMX_AVIC);
> +    qdev_set_parent_bus(DEVICE(&s->avic), sysbus_get_default());
> +
> +    object_initialize(&s->ccm, sizeof(s->ccm), TYPE_IMX_CCM);
> +    qdev_set_parent_bus(DEVICE(&s->ccm), sysbus_get_default());
> +
> +    for (i = 0; i < FSL_IMX31_NUM_UARTS; i++) {
> +        object_initialize(&s->uart[i], sizeof(s->uart[i]), TYPE_IMX_SERIAL);
> +        qdev_set_parent_bus(DEVICE(&s->uart[i]), sysbus_get_default());
> +    }
> +
> +    object_initialize(&s->gpt, sizeof(s->gpt), TYPE_IMX_GPT);
> +    qdev_set_parent_bus(DEVICE(&s->gpt), sysbus_get_default());
> +
> +    for (i = 0; i < FSL_IMX31_NUM_EPITS; i++) {
> +        object_initialize(&s->epit[i], sizeof(s->epit[i]), TYPE_IMX_EPIT);
> +        qdev_set_parent_bus(DEVICE(&s->epit[i]), sysbus_get_default());
> +    }
> +}
> +
> +static void fsl_imx31_realize(DeviceState *dev, Error **errp)
> +{
> +    FslIMX31State *s = FSL_IMX31(dev);
> +    uint16_t i;
> +    Error *err = NULL;
> +
> +    object_property_set_bool(OBJECT(&s->cpu), true, "realized", &err);
> +    if (err) {
> +        error_propagate(errp, err);
> +        return;
> +    }
> +
> +    object_property_set_bool(OBJECT(&s->avic), true, "realized", &err);
> +    if (err) {
> +        error_propagate(errp, err);
> +        return;
> +    }
> +    sysbus_mmio_map(SYS_BUS_DEVICE(&s->avic), 0, FSL_IMX31_AVIC_ADDR);
> +    sysbus_connect_irq(SYS_BUS_DEVICE(&s->avic), 0,
> +                       qdev_get_gpio_in(DEVICE(&s->cpu), ARM_CPU_IRQ));
> +    sysbus_connect_irq(SYS_BUS_DEVICE(&s->avic), 1,
> +                       qdev_get_gpio_in(DEVICE(&s->cpu), ARM_CPU_FIQ));
> +
> +    object_property_set_bool(OBJECT(&s->ccm), true, "realized", &err);
> +    if (err) {
> +        error_propagate(errp, err);
> +        return;
> +    }
> +    sysbus_mmio_map(SYS_BUS_DEVICE(&s->ccm), 0, FSL_IMX31_CCM_ADDR);
> +
> +    /* Initialize all UARTS */
> +    for (i = 0; i < FSL_IMX31_NUM_UARTS; i++) {
> +        static const struct {
> +            hwaddr addr;
> +            unsigned int irq;
> +        } serial_table[FSL_IMX31_NUM_UARTS] = {
> +            { FSL_IMX31_UART1_ADDR, FSL_IMX31_UART1_IRQ },
> +            { FSL_IMX31_UART2_ADDR, FSL_IMX31_UART2_IRQ },
> +        };
> +
> +        if (i < MAX_SERIAL_PORTS) {
> +            CharDriverState *chr;
> +
> +            chr = serial_hds[i];
> +
> +            if (!chr) {
> +                char label[20];
> +                snprintf(label, sizeof(label), "imx31.uart%d", i);
> +                chr = qemu_chr_new(label, "null", NULL);
> +            }
> +
> +            qdev_prop_set_chr(DEVICE(&s->uart[i]), "chardev", chr);
> +        }
> +
> +        object_property_set_bool(OBJECT(&s->uart[i]), true, "realized", &err);
> +        if (err) {
> +            error_propagate(errp, err);
> +            return;
> +        }
> +
> +        sysbus_mmio_map(SYS_BUS_DEVICE(&s->uart[i]), 0, serial_table[i].addr);
> +        sysbus_connect_irq(SYS_BUS_DEVICE(&s->uart[i]), 0,
> +                           qdev_get_gpio_in(DEVICE(&s->avic),
> +                                            serial_table[i].irq));
> +    }
> +
> +    s->gpt.ccm = DEVICE(&s->ccm);
> +
> +    object_property_set_bool(OBJECT(&s->gpt), true, "realized", &err);
> +    if (err) {
> +        error_propagate(errp, err);
> +        return;
> +    }
> +
> +    sysbus_mmio_map(SYS_BUS_DEVICE(&s->gpt), 0, FSL_IMX31_GPT_ADDR);
> +    sysbus_connect_irq(SYS_BUS_DEVICE(&s->gpt), 0,
> +                       qdev_get_gpio_in(DEVICE(&s->avic), FSL_IMX31_GPT_IRQ));
> +
> +    /* Initialize all EPIT timers */
> +    for (i = 0; i < FSL_IMX31_NUM_EPITS; i++) {
> +        static const struct {
> +            hwaddr addr;
> +            unsigned int irq;
> +        } epit_table[FSL_IMX31_NUM_EPITS] = {
> +            { FSL_IMX31_EPIT1_ADDR, FSL_IMX31_EPIT1_IRQ },
> +            { FSL_IMX31_EPIT2_ADDR, FSL_IMX31_EPIT2_IRQ },
> +        };
> +
> +        s->epit[i].ccm = DEVICE(&s->ccm);
> +
> +        object_property_set_bool(OBJECT(&s->epit[i]), true, "realized", &err);
> +        if (err) {
> +            error_propagate(errp, err);
> +            return;
> +        }
> +
> +        sysbus_mmio_map(SYS_BUS_DEVICE(&s->epit[i]), 0, epit_table[i].addr);
> +        sysbus_connect_irq(SYS_BUS_DEVICE(&s->epit[i]), 0,
> +                           qdev_get_gpio_in(DEVICE(&s->avic),
> +                                            epit_table[i].irq));
> +    }
> +
> +    /* On a real system, the first 16k is a `secure boot rom' */
> +    memory_region_init_rom_device(&s->secure_rom, NULL, NULL, NULL,
> +                                  "imx31.secure_rom",
> +                                  FSL_IMX31_SECURE_ROM_SIZE, &err);
> +    memory_region_add_subregion(get_system_memory(), FSL_IMX31_SECURE_ROM_ADDR,
> +                                &s->secure_rom);
> +
> +    /* There is also a 16k ROM */
> +    memory_region_init_rom_device(&s->rom, NULL, NULL, NULL, "imx31.rom",
> +                                  FSL_IMX31_ROM_SIZE, &err);
> +    memory_region_add_subregion(get_system_memory(), FSL_IMX31_ROM_ADDR,
> +                                &s->rom);
> +
> +    /* initialize internal RAM (16 KB) */
> +    memory_region_allocate_system_memory(&s->iram, NULL, "imx31.iram",
> +                                         FSL_IMX31_IRAM_SIZE);
> +    memory_region_add_subregion(get_system_memory(), FSL_IMX31_IRAM_ADDR,
> +                                &s->iram);
> +
> +    /* internal RAM (16 KB) is aliased over 256 MB - 16 KB */
> +    memory_region_init_alias(&s->iram_alias, NULL, "imx31.iram_alias",
> +                             &s->iram, 0, FSL_IMX31_IRAM_ALIAS_SIZE);
> +    memory_region_add_subregion(get_system_memory(), FSL_IMX31_IRAM_ALIAS_ADDR,
> +                                &s->iram_alias);
> +}
> +
> +static void fsl_imx31_class_init(ObjectClass *oc, void *data)
> +{
> +    DeviceClass *dc = DEVICE_CLASS(oc);
> +
> +    dc->realize = fsl_imx31_realize;
> +}
> +
> +static const TypeInfo fsl_imx31_type_info = {
> +    .name = TYPE_FSL_IMX31,
> +    .parent = TYPE_DEVICE,
> +    .instance_size = sizeof(FslIMX31State),
> +    .instance_init = fsl_imx31_init,
> +    .class_init = fsl_imx31_class_init,
> +};
> +
> +static void fsl_imx31_register_types(void)
> +{
> +    type_register_static(&fsl_imx31_type_info);
> +}
> +
> +type_init(fsl_imx31_register_types)
> diff --git a/include/hw/arm/fsl-imx31.h b/include/hw/arm/fsl-imx31.h
> new file mode 100644
> index 0000000..d8a7e86
> --- /dev/null
> +++ b/include/hw/arm/fsl-imx31.h
> @@ -0,0 +1,98 @@
> +/*
> + * Freescale i.MX31 SoC emulation
> + *
> + * Copyright (C) 2015 Jean-Christophe Dubois <jcd@tribudubois.net>
> + *
> + * 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 of the License, or
> + * (at your option) any later version.
> + *
> + * 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.
> + */
> +
> +#ifndef FSL_IMX31_H
> +#define FSL_IMX31_H
> +
> +#include "hw/arm/arm.h"
> +#include "hw/intc/imx_avic.h"
> +#include "hw/misc/imx_ccm.h"
> +#include "hw/char/imx_serial.h"
> +#include "hw/timer/imx_gpt.h"
> +#include "hw/timer/imx_epit.h"
> +#include "exec/memory.h"
> +
> +#define TYPE_FSL_IMX31 "fsl,imx31"
> +#define FSL_IMX31(obj) OBJECT_CHECK(FslIMX31State, (obj), TYPE_FSL_IMX31)
> +
> +#define FSL_IMX31_NUM_UARTS 2
> +#define FSL_IMX31_NUM_EPITS 2
> +
> +typedef struct FslIMX31State{
> +    /*< private >*/
> +    DeviceState parent_obj;
> +
> +    /*< public >*/
> +    ARMCPU         cpu;
> +    IMXAVICState   avic;
> +    IMXCCMState    ccm;
> +    IMXSerialState uart[FSL_IMX31_NUM_UARTS];
> +    IMXGPTState    gpt;
> +    IMXEPITState   epit[FSL_IMX31_NUM_EPITS];
> +    MemoryRegion   secure_rom;
> +    MemoryRegion   rom;
> +    MemoryRegion   iram;
> +    MemoryRegion   iram_alias;
> +} FslIMX31State;
> +
> +#define FSL_IMX31_SECURE_ROM_ADDR      0x00000000
> +#define FSL_IMX31_SECURE_ROM_SIZE      0x4000
> +#define FSL_IMX31_ROM_ADDR             0x00404000
> +#define FSL_IMX31_ROM_SIZE             0x4000
> +#define FSL_IMX31_IRAM_ALIAS_ADDR      0x10000000
> +#define FSL_IMX31_IRAM_ALIAS_SIZE      0xFFC0000
> +#define FSL_IMX31_IRAM_ADDR            0x1FFFC000
> +#define FSL_IMX31_IRAM_SIZE            0x4000
> +#define FSL_IMX31_UART1_ADDR           0x43F90000
> +#define FSL_IMX31_UART1_SIZE           0x4000
> +#define FSL_IMX31_UART2_ADDR           0x43F94000
> +#define FSL_IMX31_UART2_SIZE           0x4000
> +#define FSL_IMX31_CCM_ADDR             0x53F80000
> +#define FSL_IMX31_CCM_SIZE             0x4000
> +#define FSL_IMX31_GPT_ADDR             0x53F90000
> +#define FSL_IMX31_GPT_SIZE             0x4000
> +#define FSL_IMX31_EPIT1_ADDR           0x53F94000
> +#define FSL_IMX31_EPIT1_SIZE           0x4000
> +#define FSL_IMX31_EPIT2_ADDR           0x53F98000
> +#define FSL_IMX31_EPIT2_SIZE           0x4000
> +#define FSL_IMX31_AVIC_ADDR            0x68000000
> +#define FSL_IMX31_AVIC_SIZE            0x100
> +#define FSL_IMX31_SDRAM0_ADDR          0x80000000
> +#define FSL_IMX31_SDRAM0_SIZE          0x10000000
> +#define FSL_IMX31_SDRAM1_ADDR          0x90000000
> +#define FSL_IMX31_SDRAM1_SIZE          0x10000000
> +#define FSL_IMX31_FLASH0_ADDR          0xA0000000
> +#define FSL_IMX31_FLASH0_SIZE          0x8000000
> +#define FSL_IMX31_FLASH1_ADDR          0xA8000000
> +#define FSL_IMX31_FLASH1_SIZE          0x8000000
> +#define FSL_IMX31_CS2_ADDR             0xB0000000
> +#define FSL_IMX31_CS2_SIZE             0x2000000
> +#define FSL_IMX31_CS3_ADDR             0xB2000000
> +#define FSL_IMX31_CS3_SIZE             0x2000000
> +#define FSL_IMX31_CS4_ADDR             0xB4000000
> +#define FSL_IMX31_CS4_SIZE             0x2000000
> +#define FSL_IMX31_CS5_ADDR             0xB6000000
> +#define FSL_IMX31_CS5_SIZE             0x2000000
> +#define FSL_IMX31_NAND_ADDR            0xB8000000
> +#define FSL_IMX31_NAND_SIZE            0x1000
> +
> +#define FSL_IMX31_EPIT2_IRQ            27
> +#define FSL_IMX31_EPIT1_IRQ            28
> +#define FSL_IMX31_GPT_IRQ              29
> +#define FSL_IMX31_UART2_IRQ            32
> +#define FSL_IMX31_UART1_IRQ            45
> +
> +#endif /* FSL_IMX31_H */
> --
> 2.1.4
>
>