Re: [Qemu-devel] [PATCH v6 04/10] ARM: Samsung exynos4210-based boards emulation

[Kyungmin Park]

On 1/12/12, Evgeny Voevodin <address@hidden> wrote:
> Add initial support of NURI and SMDKC210 boards
>
> Signed-off-by: Evgeny Voevodin <address@hidden>
> ---
>  Makefile.target     |    3 +-
>  hw/exynos4210.c     |  202
> +++++++++++++++++++++++++++++++++++++++++++++++++++
>  hw/exynos4210.h     |   37 +++++++++
>  hw/exynos4_boards.c |  143 ++++++++++++++++++++++++++++++++++++
>  4 files changed, 384 insertions(+), 1 deletions(-)
>  create mode 100644 hw/exynos4210.c
>  create mode 100644 hw/exynos4_boards.c
>
> diff --git a/Makefile.target b/Makefile.target
> index 4ac257e..6199d44 100644
> --- a/Makefile.target
> +++ b/Makefile.target
> @@ -339,7 +339,8 @@ obj-arm-y = integratorcp.o versatilepb.o arm_pic.o
> arm_timer.o
>  obj-arm-y += arm_boot.o pl011.o pl031.o pl050.o pl080.o pl110.o pl181.o
> pl190.o
>  obj-arm-y += versatile_pci.o
>  obj-arm-y += realview_gic.o realview.o arm_sysctl.o arm11mpcore.o
> a9mpcore.o
> -obj-arm-y += exynos4210_gic.o exynos4210_combiner.o
> +obj-arm-y += exynos4210_gic.o exynos4210_combiner.o exynos4210.o
> +obj-arm-y += exynos4_boards.o
>  obj-arm-y += arm_l2x0.o
>  obj-arm-y += arm_mptimer.o
>  obj-arm-y += armv7m.o armv7m_nvic.o stellaris.o pl022.o stellaris_enet.o
> diff --git a/hw/exynos4210.c b/hw/exynos4210.c
> new file mode 100644
> index 0000000..82755db
> --- /dev/null
> +++ b/hw/exynos4210.c
> @@ -0,0 +1,202 @@
> +/*
> + *  Samsung exynos4210 SoC emulation
> + *
> + *  Copyright (c) 2011 Samsung Electronics Co., Ltd. All rights reserved.
> + *    Maksim Kozlov <address@hidden>
> + *    Evgeny Voevodin <address@hidden>
> + *    Igor Mitsyanko  <address@hidden>
> + *
> + *  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 "boards.h"
> +#include "sysemu.h"
> +#include "sysbus.h"
> +#include "arm-misc.h"
> +#include "exynos4210.h"
> +
> +#define EXYNOS4210_CHIPID_ADDR         0x10000000
> +
> +/* External GIC */
> +#define EXYNOS4210_EXT_GIC_CPU_BASE_ADDR    0x10480000
> +#define EXYNOS4210_EXT_GIC_DIST_BASE_ADDR   0x10490000
> +
> +/* Combiner */
> +#define EXYNOS4210_EXT_COMBINER_BASE_ADDR   0x10440000
> +#define EXYNOS4210_INT_COMBINER_BASE_ADDR   0x10448000
FYI: Even though there's internal combiner, it doesn't used any more.
and there's no codes at kernel.

Thank you,
Kyungmin Park
> +
> +static uint8_t chipid_and_omr[] = { 0x11, 0x02, 0x21, 0x43,
> +                                    0x09, 0x00, 0x00, 0x00 };
> +
> +Exynos4210State *exynos4210_init(MemoryRegion *system_mem,
> +        unsigned long ram_size)
> +{
> +    qemu_irq cpu_irq[4];
> +    int n;
> +    Exynos4210State *s = g_new(Exynos4210State, 1);
> +    qemu_irq *irq_table;
> +    qemu_irq *irqp;
> +    qemu_irq gate_irq[EXYNOS4210_IRQ_GATE_NINPUTS];
> +    unsigned long mem_size;
> +    DeviceState *dev;
> +    SysBusDevice *busdev;
> +
> +    for (n = 0; n < smp_cpus; n++) {
> +        s->env[n] = cpu_init("cortex-a9");
> +        if (!s->env[n]) {
> +            fprintf(stderr, "Unable to find CPU %d definition\n", n);
> +            exit(1);
> +        }
> +        /* Create PIC controller for each processor instance */
> +        irqp = arm_pic_init_cpu(s->env[n]);
> +
> +        /*
> +         * Get GICs gpio_in cpu_irq to connect a combiner to them later.
> +         * Use only IRQ for a while.
> +         */
> +        cpu_irq[n] = irqp[ARM_PIC_CPU_IRQ];
> +    }
> +
> +    /*** IRQs ***/
> +
> +    s->irq_table = exynos4210_init_irq(&s->irqs);
> +    irq_table = s->irq_table;
> +
> +    /* IRQ Gate */
> +    dev = qdev_create(NULL, "exynos4210.irq_gate");
> +    qdev_init_nofail(dev);
> +    /* Get IRQ Gate input in gate_irq */
> +    for (n = 0; n < EXYNOS4210_IRQ_GATE_NINPUTS; n++) {
> +        gate_irq[n] = qdev_get_gpio_in(dev, n);
> +    }
> +    busdev = sysbus_from_qdev(dev);
> +    /* Connect IRQ Gate output to cpu_irq */
> +    for (n = 0; n < smp_cpus; n++) {
> +        sysbus_connect_irq(busdev, n, cpu_irq[n]);
> +    }
> +
> +    /* Private memory region and Internal GIC */
> +    dev = qdev_create(NULL, "a9mpcore_priv");
> +    qdev_prop_set_uint32(dev, "num-cpu", smp_cpus);
> +    qdev_init_nofail(dev);
> +    busdev = sysbus_from_qdev(dev);
> +    sysbus_mmio_map(busdev, 0, EXYNOS4210_SMP_PRIVATE_BASE_ADDR);
> +    for (n = 0; n < smp_cpus; n++) {
> +        sysbus_connect_irq(busdev, n, gate_irq[n * 2]);
> +    }
> +    for (n = 0; n < EXYNOS4210_INT_GIC_NIRQ; n++) {
> +        s->irqs.int_gic_irq[n] = qdev_get_gpio_in(dev, n);
> +    }
> +
> +    /* External GIC */
> +    dev = qdev_create(NULL, "exynos4210.gic");
> +    qdev_prop_set_uint32(dev, "num-cpu", smp_cpus);
> +    qdev_init_nofail(dev);
> +    busdev = sysbus_from_qdev(dev);
> +    /* Map CPU interface */
> +    sysbus_mmio_map(busdev, 0, EXYNOS4210_EXT_GIC_CPU_BASE_ADDR);
> +    /* Map Distributer interface */
> +    sysbus_mmio_map(busdev, 1, EXYNOS4210_EXT_GIC_DIST_BASE_ADDR);
> +    for (n = 0; n < smp_cpus; n++) {
> +        sysbus_connect_irq(busdev, n, gate_irq[n * 2 + 1]);
> +    }
> +    for (n = 0; n < EXYNOS4210_EXT_GIC_NIRQ; n++) {
> +        s->irqs.ext_gic_irq[n] = qdev_get_gpio_in(dev, n);
> +    }
> +
> +    /* Internal Interrupt Combiner */
> +    dev = qdev_create(NULL, "exynos4210.combiner");
> +    qdev_init_nofail(dev);
> +    busdev = sysbus_from_qdev(dev);
> +    for (n = 0; n < EXYNOS4210_MAX_INT_COMBINER_OUT_IRQ; n++) {
> +        sysbus_connect_irq(busdev, n, s->irqs.int_gic_irq[n]);
> +    }
> +    exynos4210_combiner_get_gpioin(&s->irqs, dev, 0);
> +    sysbus_mmio_map(busdev, 0, EXYNOS4210_INT_COMBINER_BASE_ADDR);
> +
> +    /* External Interrupt Combiner */
> +    dev = qdev_create(NULL, "exynos4210.combiner");
> +    qdev_init_nofail(dev);
> +    busdev = sysbus_from_qdev(dev);
> +    for (n = 0; n < EXYNOS4210_MAX_INT_COMBINER_OUT_IRQ; n++) {
> +        sysbus_connect_irq(busdev, n, s->irqs.ext_gic_irq[n]);
> +    }
> +    exynos4210_combiner_get_gpioin(&s->irqs, dev, 1);
> +    sysbus_mmio_map(busdev, 0, EXYNOS4210_EXT_COMBINER_BASE_ADDR);
> +    qdev_prop_set_uint32(dev, "external", 1);
> +
> +    /* Initialize board IRQs. */
> +    exynos4210_init_board_irqs(&s->irqs);
> +
> +    /*** Memory ***/
> +
> +    /* Chip-ID and OMR */
> +    memory_region_init_ram_ptr(&s->chipid_mem, "exynos4210.chipid",
> +            sizeof(chipid_and_omr), chipid_and_omr);
> +    memory_region_set_readonly(&s->chipid_mem, true);
> +    memory_region_add_subregion(system_mem, EXYNOS4210_CHIPID_ADDR,
> +                                &s->chipid_mem);
> +
> +    /* Internal ROM */
> +    memory_region_init_ram(&s->irom_mem, "exynos4210.irom",
> +                           EXYNOS4210_IROM_SIZE);
> +    memory_region_set_readonly(&s->irom_mem, true);
> +    memory_region_add_subregion(system_mem, EXYNOS4210_IROM_BASE_ADDR,
> +                                &s->irom_mem);
> +    /* mirror of 0x0 – 0x10000 */
> +    memory_region_init_alias(&s->irom_alias_mem, "exynos4210.irom_alias",
> +            &s->irom_mem, 0, EXYNOS4210_IROM_SIZE);
> +    memory_region_set_readonly(&s->irom_alias_mem, true);
> +    memory_region_add_subregion(system_mem,
> EXYNOS4210_IROM_MIRROR_BASE_ADDR,
> +            &s->irom_alias_mem);
> +
> +    /* Internal RAM */
> +    memory_region_init_ram(&s->iram_mem, "exynos4210.iram",
> +                           EXYNOS4210_IRAM_SIZE);
> +    vmstate_register_ram_global(&s->iram_mem);
> +    memory_region_add_subregion(system_mem, EXYNOS4210_IRAM_BASE_ADDR,
> +                                &s->iram_mem);
> +
> +    /* DRAM */
> +    mem_size = ram_size;
> +    if (mem_size > EXYNOS4210_DRAM_MAX_SIZE) {
> +        memory_region_init_ram(&s->dram1_mem, "exynos4210.dram1",
> +                mem_size - EXYNOS4210_DRAM_MAX_SIZE);
> +        vmstate_register_ram_global(&s->dram1_mem);
> +        memory_region_add_subregion(system_mem, EXYNOS4210_DRAM1_BASE_ADDR,
> +                &s->dram1_mem);
> +        mem_size = EXYNOS4210_DRAM_MAX_SIZE;
> +    }
> +    memory_region_init_ram(&s->dram0_mem, "exynos4210.dram0", mem_size);
> +    vmstate_register_ram_global(&s->dram0_mem);
> +    memory_region_add_subregion(system_mem, EXYNOS4210_DRAM0_BASE_ADDR,
> +            &s->dram0_mem);
> +
> +    /*
> +     * Secondary CPU startup code will be placed here.
> +     */
> +    memory_region_init_ram(&s->hack_mem, "exynos4210.hack", 0x1000);
> +    memory_region_add_subregion(system_mem, EXYNOS4210_SMP_BOOT_ADDR,
> +            &s->hack_mem);
> +
> +    /*
> +     * Hack: Map SECOND_CPU_BOOTREG, because it is in PMU USER5 register.
> +     */
> +    memory_region_init_ram(&s->bootreg_mem, "exynos4210.bootreg", 0x4);
> +    memory_region_add_subregion(system_mem, EXYNOS4210_SECOND_CPU_BOOTREG,
> +            &s->bootreg_mem);
> +
> +    return s;
> +}
> diff --git a/hw/exynos4210.h b/hw/exynos4210.h
> index cef264b..a68900d 100644
> --- a/hw/exynos4210.h
> +++ b/hw/exynos4210.h
> @@ -31,6 +31,25 @@
>
>  #define EXYNOS4210_MAX_CPUS                 2
>
> +#define EXYNOS4210_DRAM0_BASE_ADDR          0x40000000
> +#define EXYNOS4210_DRAM1_BASE_ADDR          0xa0000000
> +#define EXYNOS4210_DRAM_MAX_SIZE            0x60000000  /* 1.5 GB */
> +
> +#define EXYNOS4210_IROM_BASE_ADDR           0x00000000
> +#define EXYNOS4210_IROM_SIZE                0x00010000  /* 64 KB */
> +#define EXYNOS4210_IROM_MIRROR_BASE_ADDR    0x02000000
> +#define EXYNOS4210_IROM_MIRROR_SIZE         0x00010000  /* 64 KB */
> +
> +#define EXYNOS4210_IRAM_BASE_ADDR           0x02020000
> +#define EXYNOS4210_IRAM_SIZE                0x00020000  /* 128 KB */
> +
> +/* Secondary CPU startup code is in IROM memory */
> +#define EXYNOS4210_SMP_BOOT_ADDR            EXYNOS4210_IROM_BASE_ADDR
> +#define EXYNOS4210_BASE_BOOT_ADDR           EXYNOS4210_DRAM0_BASE_ADDR
> +/* Secondary CPU polling address to get loader start from */
> +#define EXYNOS4210_SECOND_CPU_BOOTREG       0x10020814
> +#define EXYNOS4210_SMP_PRIVATE_BASE_ADDR    0x10500000
> +
>  /*
>   * exynos4210 IRQ subsystem stub definitions.
>   */
> @@ -60,6 +79,24 @@ typedef struct Exynos4210Irq {
>      qemu_irq board_irqs[EXYNOS4210_MAX_INT_COMBINER_IN_IRQ];
>  } Exynos4210Irq;
>
> +typedef struct Exynos4210State {
> +    CPUState * env[EXYNOS4210_MAX_CPUS];
> +    Exynos4210Irq irqs;
> +    qemu_irq *irq_table;
> +
> +    MemoryRegion chipid_mem;
> +    MemoryRegion iram_mem;
> +    MemoryRegion irom_mem;
> +    MemoryRegion irom_alias_mem;
> +    MemoryRegion dram0_mem;
> +    MemoryRegion dram1_mem;
> +    MemoryRegion hack_mem;
> +    MemoryRegion bootreg_mem;
> +} Exynos4210State;
> +
> +Exynos4210State *exynos4210_init(MemoryRegion *system_mem,
> +        unsigned long ram_size);
> +
>  /* Initialize exynos4210 IRQ subsystem stub */
>  qemu_irq *exynos4210_init_irq(Exynos4210Irq *env);
>
> diff --git a/hw/exynos4_boards.c b/hw/exynos4_boards.c
> new file mode 100644
> index 0000000..b8fc5b6
> --- /dev/null
> +++ b/hw/exynos4_boards.c
> @@ -0,0 +1,143 @@
> +/*
> + *  Samsung exynos4 SoC based boards emulation
> + *
> + *  Copyright (c) 2011 Samsung Electronics Co., Ltd. All rights reserved.
> + *    Maksim Kozlov <address@hidden>
> + *    Evgeny Voevodin <address@hidden>
> + *    Igor Mitsyanko  <address@hidden>
> + *
> + *  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 "sysemu.h"
> +#include "sysbus.h"
> +#include "arm-misc.h"
> +#include "exec-memory.h"
> +#include "exynos4210.h"
> +#include "boards.h"
> +
> +#undef DEBUG
> +
> +//#define DEBUG
> +
> +#ifdef DEBUG
> +    #undef PRINT_DEBUG
> +    #define  PRINT_DEBUG(fmt, args...) \
> +        do { \
> +            fprintf(stderr, "  [%s:%d]   "fmt, __func__, __LINE__, ##args);
> \
> +        } while (0)
> +#else
> +    #define  PRINT_DEBUG(fmt, args...)  do {} while (0)
> +#endif
> +
> +typedef enum exynos4_board_type {
> +    EXYNOS4_BOARD_NURI,
> +    EXYNOS4_BOARD_SMDKC210,
> +    EXYNOS4_NUM_OF_BOARDS
> +} exynos4_board_type;
> +
> +static int exynos4_board_id[EXYNOS4_NUM_OF_BOARDS] = {
> +    [EXYNOS4_BOARD_NURI]     = 0xD33,
> +    [EXYNOS4_BOARD_SMDKC210] = 0xB16,
> +};
> +
> +static int exynos4_board_smp_bootreg_addr[EXYNOS4_NUM_OF_BOARDS] = {
> +    [EXYNOS4_BOARD_NURI]     = EXYNOS4210_SECOND_CPU_BOOTREG,
> +    [EXYNOS4_BOARD_SMDKC210] = EXYNOS4210_SECOND_CPU_BOOTREG,
> +};
> +
> +static unsigned long exynos4_board_ram_size[EXYNOS4_NUM_OF_BOARDS] = {
> +    [EXYNOS4_BOARD_NURI]     = 0x40000000,
> +    [EXYNOS4_BOARD_SMDKC210] = 0x40000000,
> +};
> +
> +static struct arm_boot_info exynos4_board_binfo = {
> +    .loader_start     = EXYNOS4210_BASE_BOOT_ADDR,
> +    .smp_loader_start = EXYNOS4210_SMP_BOOT_ADDR,
> +};
> +
> +static Exynos4210State *exynos4_boards_init_common(
> +        const char *kernel_filename,
> +        const char *kernel_cmdline,
> +        const char *initrd_filename,
> +        exynos4_board_type board_type)
> +{
> +    exynos4_board_binfo.ram_size = exynos4_board_ram_size[board_type];
> +    exynos4_board_binfo.board_id = exynos4_board_id[board_type];
> +    exynos4_board_binfo.smp_bootreg_addr =
> +            exynos4_board_smp_bootreg_addr[board_type];
> +    exynos4_board_binfo.nb_cpus = smp_cpus;
> +    exynos4_board_binfo.kernel_filename = kernel_filename;
> +    exynos4_board_binfo.initrd_filename = initrd_filename;
> +    exynos4_board_binfo.kernel_cmdline = kernel_cmdline;
> +    exynos4_board_binfo.smp_priv_base = EXYNOS4210_SMP_PRIVATE_BASE_ADDR;
> +
> +    PRINT_DEBUG("\n ram_size: %luMiB [0x%08lx]\n"
> +            " kernel_filename: %s\n"
> +            " kernel_cmdline: %s\n"
> +            " initrd_filename: %s\n",
> +            exynos4_board_ram_size[board_type]/1048576,
> +            exynos4_board_ram_size[board_type],
> +            kernel_filename,
> +            kernel_cmdline,
> +            initrd_filename);
> +
> +    return exynos4210_init(get_system_memory(),
> +            exynos4_board_ram_size[board_type]);
> +}
> +
> +static void nuri_init(ram_addr_t ram_size,
> +        const char *boot_device,
> +        const char *kernel_filename, const char *kernel_cmdline,
> +        const char *initrd_filename, const char *cpu_model)
> +{
> +    exynos4_boards_init_common(kernel_filename, kernel_cmdline,
> +            initrd_filename, EXYNOS4_BOARD_NURI);
> +
> +    arm_load_kernel(first_cpu, &exynos4_board_binfo);
> +}
> +
> +static void smdkc210_init(ram_addr_t ram_size,
> +        const char *boot_device,
> +        const char *kernel_filename, const char *kernel_cmdline,
> +        const char *initrd_filename, const char *cpu_model)
> +{
> +    exynos4_boards_init_common(kernel_filename, kernel_cmdline,
> +            initrd_filename, EXYNOS4_BOARD_SMDKC210);
> +
> +    arm_load_kernel(first_cpu, &exynos4_board_binfo);
> +}
> +
> +static QEMUMachine nuri_machine = {
> +        .name = "nuri",
> +        .desc = "Samsung NURI board (Exynos4210)",
> +        .init = nuri_init,
> +        .max_cpus = EXYNOS4210_MAX_CPUS,
> +};
> +
> +static QEMUMachine smdkc210_machine = {
> +        .name = "smdkc210",
> +        .desc = "Samsung SMDKC210 board (Exynos4210)",
> +        .init = smdkc210_init,
> +        .max_cpus = EXYNOS4210_MAX_CPUS,
> +};
> +
> +static void exynos4_machine_init(void)
> +{
> +    qemu_register_machine(&nuri_machine);
> +    qemu_register_machine(&smdkc210_machine);
> +}
> +
> +machine_init(exynos4_machine_init);
> --
> 1.7.4.1
>
>
>
>