hw/xilinx_zynq.c - qemu - Git at Google

 /*
  * Xilinx Zynq Baseboard System emulation.
  *
  * Copyright (c) 2010 Xilinx.
  * Copyright (c) 2012 Peter A.G. Crosthwaite (peter.croshtwaite@petalogix.com)
  * Copyright (c) 2012 Petalogix Pty Ltd.
  * Written by Haibing Ma
  *
  * 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.
  *
  * 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 "sysbus.h"
 #include "arm-misc.h"
 #include "net/net.h"
 #include "exec/address-spaces.h"
 #include "sysemu/sysemu.h"
 #include "boards.h"
 #include "flash.h"
 #include "sysemu/blockdev.h"
 #include "loader.h"
 #include "ssi.h"

 #define NUM_SPI_FLASHES 4
 #define NUM_QSPI_FLASHES 2
 #define NUM_QSPI_BUSSES 2

 #define FLASH_SIZE (64 * 1024 * 1024)
 #define FLASH_SECTOR_SIZE (128 * 1024)

 #define IRQ_OFFSET 32 /* pic interrupts start from index 32 */

 static struct arm_boot_info zynq_binfo = {};

 static void gem_init(NICInfo *nd, uint32_t base, qemu_irq irq)
 {
     DeviceState *dev;
     SysBusDevice *s;

     qemu_check_nic_model(nd, "cadence_gem");
     dev = qdev_create(NULL, "cadence_gem");
     qdev_set_nic_properties(dev, nd);
     qdev_init_nofail(dev);
     s = SYS_BUS_DEVICE(dev);
     sysbus_mmio_map(s, 0, base);
     sysbus_connect_irq(s, 0, irq);
 }

 static inline void zynq_init_spi_flashes(uint32_t base_addr, qemu_irq irq,
                                          bool is_qspi)
 {
     DeviceState *dev;
     SysBusDevice *busdev;
     SSIBus *spi;
     DeviceState *flash_dev;
     int i, j;
     int num_busses =  is_qspi ? NUM_QSPI_BUSSES : 1;
     int num_ss = is_qspi ? NUM_QSPI_FLASHES : NUM_SPI_FLASHES;

     dev = qdev_create(NULL, "xilinx,spips");
     qdev_prop_set_uint8(dev, "num-txrx-bytes", is_qspi ? 4 : 1);
     qdev_prop_set_uint8(dev, "num-ss-bits", num_ss);
     qdev_prop_set_uint8(dev, "num-busses", num_busses);
     qdev_init_nofail(dev);
     busdev = SYS_BUS_DEVICE(dev);
     sysbus_mmio_map(busdev, 0, base_addr);
     if (is_qspi) {
         sysbus_mmio_map(busdev, 1, 0xFC000000);
     }
     sysbus_connect_irq(busdev, 0, irq);

     for (i = 0; i < num_busses; ++i) {
         char bus_name[16];
         qemu_irq cs_line;

         snprintf(bus_name, 16, "spi%d", i);
         spi = (SSIBus *)qdev_get_child_bus(dev, bus_name);

         for (j = 0; j < num_ss; ++j) {
             flash_dev = ssi_create_slave_no_init(spi, "m25p80");
             qdev_prop_set_string(flash_dev, "partname", "n25q128");
             qdev_init_nofail(flash_dev);

             cs_line = qdev_get_gpio_in(flash_dev, 0);
             sysbus_connect_irq(busdev, i * num_ss + j + 1, cs_line);
         }
     }

 }

 static void zynq_init(QEMUMachineInitArgs *args)
 {
     ram_addr_t ram_size = args->ram_size;
     const char *cpu_model = args->cpu_model;
     const char *kernel_filename = args->kernel_filename;
     const char *kernel_cmdline = args->kernel_cmdline;
     const char *initrd_filename = args->initrd_filename;
     ARMCPU *cpu;
     MemoryRegion *address_space_mem = get_system_memory();
     MemoryRegion *ext_ram = g_new(MemoryRegion, 1);
     MemoryRegion *ocm_ram = g_new(MemoryRegion, 1);
     DeviceState *dev;
     SysBusDevice *busdev;
     qemu_irq *irqp;
     qemu_irq pic[64];
     NICInfo *nd;
     int n;
     qemu_irq cpu_irq;

     if (!cpu_model) {
         cpu_model = "cortex-a9";
     }

     cpu = cpu_arm_init(cpu_model);
     if (!cpu) {
         fprintf(stderr, "Unable to find CPU definition\n");
         exit(1);
     }
     irqp = arm_pic_init_cpu(cpu);
     cpu_irq = irqp[ARM_PIC_CPU_IRQ];

     /* max 2GB ram */
     if (ram_size > 0x80000000) {
         ram_size = 0x80000000;
     }

     /* DDR remapped to address zero.  */
     memory_region_init_ram(ext_ram, "zynq.ext_ram", ram_size);
     vmstate_register_ram_global(ext_ram);
     memory_region_add_subregion(address_space_mem, 0, ext_ram);

     /* 256K of on-chip memory */
     memory_region_init_ram(ocm_ram, "zynq.ocm_ram", 256 << 10);
     vmstate_register_ram_global(ocm_ram);
     memory_region_add_subregion(address_space_mem, 0xFFFC0000, ocm_ram);

     DriveInfo *dinfo = drive_get(IF_PFLASH, 0, 0);

     /* AMD */
     pflash_cfi02_register(0xe2000000, NULL, "zynq.pflash", FLASH_SIZE,
                           dinfo ? dinfo->bdrv : NULL, FLASH_SECTOR_SIZE,
                           FLASH_SIZE/FLASH_SECTOR_SIZE, 1,
                           1, 0x0066, 0x0022, 0x0000, 0x0000, 0x0555, 0x2aa,
                               0);

     dev = qdev_create(NULL, "xilinx,zynq_slcr");
     qdev_init_nofail(dev);
     sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0xF8000000);

     dev = qdev_create(NULL, "a9mpcore_priv");
     qdev_prop_set_uint32(dev, "num-cpu", 1);
     qdev_init_nofail(dev);
     busdev = SYS_BUS_DEVICE(dev);
     sysbus_mmio_map(busdev, 0, 0xF8F00000);
     sysbus_connect_irq(busdev, 0, cpu_irq);

     for (n = 0; n < 64; n++) {
         pic[n] = qdev_get_gpio_in(dev, n);
     }

     zynq_init_spi_flashes(0xE0006000, pic[58-IRQ_OFFSET], false);
     zynq_init_spi_flashes(0xE0007000, pic[81-IRQ_OFFSET], false);
     zynq_init_spi_flashes(0xE000D000, pic[51-IRQ_OFFSET], true);

     sysbus_create_simple("xlnx,ps7-usb", 0xE0002000, pic[53-IRQ_OFFSET]);
     sysbus_create_simple("xlnx,ps7-usb", 0xE0003000, pic[76-IRQ_OFFSET]);

     sysbus_create_simple("cadence_uart", 0xE0000000, pic[59-IRQ_OFFSET]);
     sysbus_create_simple("cadence_uart", 0xE0001000, pic[82-IRQ_OFFSET]);

     sysbus_create_varargs("cadence_ttc", 0xF8001000,
             pic[42-IRQ_OFFSET], pic[43-IRQ_OFFSET], pic[44-IRQ_OFFSET], NULL);
     sysbus_create_varargs("cadence_ttc", 0xF8002000,
             pic[69-IRQ_OFFSET], pic[70-IRQ_OFFSET], pic[71-IRQ_OFFSET], NULL);

     for (n = 0; n < nb_nics; n++) {
         nd = &nd_table[n];
         if (n == 0) {
             gem_init(nd, 0xE000B000, pic[54-IRQ_OFFSET]);
         } else if (n == 1) {
             gem_init(nd, 0xE000C000, pic[77-IRQ_OFFSET]);
         }
     }

     zynq_binfo.ram_size = ram_size;
     zynq_binfo.kernel_filename = kernel_filename;
     zynq_binfo.kernel_cmdline = kernel_cmdline;
     zynq_binfo.initrd_filename = initrd_filename;
     zynq_binfo.nb_cpus = 1;
     zynq_binfo.board_id = 0xd32;
     zynq_binfo.loader_start = 0;
     arm_load_kernel(arm_env_get_cpu(first_cpu), &zynq_binfo);
 }

 static QEMUMachine zynq_machine = {
     .name = "xilinx-zynq-a9",
     .desc = "Xilinx Zynq Platform Baseboard for Cortex-A9",
     .init = zynq_init,
     .block_default_type = IF_SCSI,
     .max_cpus = 1,
     .no_sdcard = 1,
     DEFAULT_MACHINE_OPTIONS,
 };

 static void zynq_machine_init(void)
 {
     qemu_register_machine(&zynq_machine);
 }

 machine_init(zynq_machine_init);
	/*
	* Xilinx Zynq Baseboard System emulation.
	*
	* Copyright (c) 2010 Xilinx.
	* Copyright (c) 2012 Peter A.G. Crosthwaite (peter.croshtwaite@petalogix.com)
	* Copyright (c) 2012 Petalogix Pty Ltd.
	* Written by Haibing Ma
	*
	* 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.
	*
	* 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 "sysbus.h"
	#include "arm-misc.h"
	#include "net/net.h"
	#include "exec/address-spaces.h"
	#include "sysemu/sysemu.h"
	#include "boards.h"
	#include "flash.h"
	#include "sysemu/blockdev.h"
	#include "loader.h"
	#include "ssi.h"

	#define NUM_SPI_FLASHES 4
	#define NUM_QSPI_FLASHES 2
	#define NUM_QSPI_BUSSES 2

	#define FLASH_SIZE (64 * 1024 * 1024)
	#define FLASH_SECTOR_SIZE (128 * 1024)

	#define IRQ_OFFSET 32 /* pic interrupts start from index 32 */

	static struct arm_boot_info zynq_binfo = {};

	static void gem_init(NICInfo *nd, uint32_t base, qemu_irq irq)
	{
	DeviceState *dev;
	SysBusDevice *s;

	qemu_check_nic_model(nd, "cadence_gem");
	dev = qdev_create(NULL, "cadence_gem");
	qdev_set_nic_properties(dev, nd);
	qdev_init_nofail(dev);
	s = SYS_BUS_DEVICE(dev);
	sysbus_mmio_map(s, 0, base);
	sysbus_connect_irq(s, 0, irq);
	}

	static inline void zynq_init_spi_flashes(uint32_t base_addr, qemu_irq irq,
	bool is_qspi)
	{
	DeviceState *dev;
	SysBusDevice *busdev;
	SSIBus *spi;
	DeviceState *flash_dev;
	int i, j;
	int num_busses = is_qspi ? NUM_QSPI_BUSSES : 1;
	int num_ss = is_qspi ? NUM_QSPI_FLASHES : NUM_SPI_FLASHES;

	dev = qdev_create(NULL, "xilinx,spips");
	qdev_prop_set_uint8(dev, "num-txrx-bytes", is_qspi ? 4 : 1);
	qdev_prop_set_uint8(dev, "num-ss-bits", num_ss);
	qdev_prop_set_uint8(dev, "num-busses", num_busses);
	qdev_init_nofail(dev);
	busdev = SYS_BUS_DEVICE(dev);
	sysbus_mmio_map(busdev, 0, base_addr);
	if (is_qspi) {
	sysbus_mmio_map(busdev, 1, 0xFC000000);
	}
	sysbus_connect_irq(busdev, 0, irq);

	for (i = 0; i < num_busses; ++i) {
	char bus_name[16];
	qemu_irq cs_line;

	snprintf(bus_name, 16, "spi%d", i);
	spi = (SSIBus *)qdev_get_child_bus(dev, bus_name);

	for (j = 0; j < num_ss; ++j) {
	flash_dev = ssi_create_slave_no_init(spi, "m25p80");
	qdev_prop_set_string(flash_dev, "partname", "n25q128");
	qdev_init_nofail(flash_dev);

	cs_line = qdev_get_gpio_in(flash_dev, 0);
	sysbus_connect_irq(busdev, i * num_ss + j + 1, cs_line);
	}
	}

	}

	static void zynq_init(QEMUMachineInitArgs *args)
	{
	ram_addr_t ram_size = args->ram_size;
	const char *cpu_model = args->cpu_model;
	const char *kernel_filename = args->kernel_filename;
	const char *kernel_cmdline = args->kernel_cmdline;
	const char *initrd_filename = args->initrd_filename;
	ARMCPU *cpu;
	MemoryRegion *address_space_mem = get_system_memory();
	MemoryRegion *ext_ram = g_new(MemoryRegion, 1);
	MemoryRegion *ocm_ram = g_new(MemoryRegion, 1);
	DeviceState *dev;
	SysBusDevice *busdev;
	qemu_irq *irqp;
	qemu_irq pic[64];
	NICInfo *nd;
	int n;
	qemu_irq cpu_irq;

	if (!cpu_model) {
	cpu_model = "cortex-a9";
	}

	cpu = cpu_arm_init(cpu_model);
	if (!cpu) {
	fprintf(stderr, "Unable to find CPU definition\n");
	exit(1);
	}
	irqp = arm_pic_init_cpu(cpu);
	cpu_irq = irqp[ARM_PIC_CPU_IRQ];

	/* max 2GB ram */
	if (ram_size > 0x80000000) {
	ram_size = 0x80000000;
	}

	/* DDR remapped to address zero. */
	memory_region_init_ram(ext_ram, "zynq.ext_ram", ram_size);
	vmstate_register_ram_global(ext_ram);
	memory_region_add_subregion(address_space_mem, 0, ext_ram);

	/* 256K of on-chip memory */
	memory_region_init_ram(ocm_ram, "zynq.ocm_ram", 256 << 10);
	vmstate_register_ram_global(ocm_ram);
	memory_region_add_subregion(address_space_mem, 0xFFFC0000, ocm_ram);

	DriveInfo *dinfo = drive_get(IF_PFLASH, 0, 0);

	/* AMD */
	pflash_cfi02_register(0xe2000000, NULL, "zynq.pflash", FLASH_SIZE,
	dinfo ? dinfo->bdrv : NULL, FLASH_SECTOR_SIZE,
	FLASH_SIZE/FLASH_SECTOR_SIZE, 1,
	1, 0x0066, 0x0022, 0x0000, 0x0000, 0x0555, 0x2aa,
	0);

	dev = qdev_create(NULL, "xilinx,zynq_slcr");
	qdev_init_nofail(dev);
	sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0xF8000000);

	dev = qdev_create(NULL, "a9mpcore_priv");
	qdev_prop_set_uint32(dev, "num-cpu", 1);
	qdev_init_nofail(dev);
	busdev = SYS_BUS_DEVICE(dev);
	sysbus_mmio_map(busdev, 0, 0xF8F00000);
	sysbus_connect_irq(busdev, 0, cpu_irq);

	for (n = 0; n < 64; n++) {
	pic[n] = qdev_get_gpio_in(dev, n);
	}

	zynq_init_spi_flashes(0xE0006000, pic[58-IRQ_OFFSET], false);
	zynq_init_spi_flashes(0xE0007000, pic[81-IRQ_OFFSET], false);
	zynq_init_spi_flashes(0xE000D000, pic[51-IRQ_OFFSET], true);

	sysbus_create_simple("xlnx,ps7-usb", 0xE0002000, pic[53-IRQ_OFFSET]);
	sysbus_create_simple("xlnx,ps7-usb", 0xE0003000, pic[76-IRQ_OFFSET]);

	sysbus_create_simple("cadence_uart", 0xE0000000, pic[59-IRQ_OFFSET]);
	sysbus_create_simple("cadence_uart", 0xE0001000, pic[82-IRQ_OFFSET]);

	sysbus_create_varargs("cadence_ttc", 0xF8001000,
	pic[42-IRQ_OFFSET], pic[43-IRQ_OFFSET], pic[44-IRQ_OFFSET], NULL);
	sysbus_create_varargs("cadence_ttc", 0xF8002000,
	pic[69-IRQ_OFFSET], pic[70-IRQ_OFFSET], pic[71-IRQ_OFFSET], NULL);

	for (n = 0; n < nb_nics; n++) {
	nd = &nd_table[n];
	if (n == 0) {
	gem_init(nd, 0xE000B000, pic[54-IRQ_OFFSET]);
	} else if (n == 1) {
	gem_init(nd, 0xE000C000, pic[77-IRQ_OFFSET]);
	}
	}

	zynq_binfo.ram_size = ram_size;
	zynq_binfo.kernel_filename = kernel_filename;
	zynq_binfo.kernel_cmdline = kernel_cmdline;
	zynq_binfo.initrd_filename = initrd_filename;
	zynq_binfo.nb_cpus = 1;
	zynq_binfo.board_id = 0xd32;
	zynq_binfo.loader_start = 0;
	arm_load_kernel(arm_env_get_cpu(first_cpu), &zynq_binfo);
	}

	static QEMUMachine zynq_machine = {
	.name = "xilinx-zynq-a9",
	.desc = "Xilinx Zynq Platform Baseboard for Cortex-A9",
	.init = zynq_init,
	.block_default_type = IF_SCSI,
	.max_cpus = 1,
	.no_sdcard = 1,
	DEFAULT_MACHINE_OPTIONS,
	};

	static void zynq_machine_init(void)
	{
	qemu_register_machine(&zynq_machine);
	}

	machine_init(zynq_machine_init);