hw/microblaze/petalogix_ml605_mmu.c - qemu - Git at Google

 /*
  * Model of Petalogix linux reference design targeting Xilinx Spartan ml605
  * board.
  *
  * Copyright (c) 2011 Michal Simek <monstr@monstr.eu>
  * Copyright (c) 2011 PetaLogix
  * Copyright (c) 2009 Edgar E. Iglesias.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
  * in the Software without restriction, including without limitation the rights
  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  * copies of the Software, and to permit persons to whom the Software is
  * furnished to do so, subject to the following conditions:
  *
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */

 #include "qemu/osdep.h"
 #include "qemu/units.h"
 #include "qapi/error.h"
 #include "cpu.h"
 #include "hw/sysbus.h"
 #include "net/net.h"
 #include "hw/block/flash.h"
 #include "sysemu/sysemu.h"
 #include "hw/boards.h"
 #include "hw/char/serial.h"
 #include "hw/qdev-properties.h"
 #include "exec/address-spaces.h"
 #include "hw/ssi/ssi.h"

 #include "boot.h"

 #include "hw/stream.h"

 #define LMB_BRAM_SIZE  (128 * KiB)
 #define FLASH_SIZE     (32 * MiB)

 #define BINARY_DEVICE_TREE_FILE "petalogix-ml605.dtb"

 #define NUM_SPI_FLASHES 4

 #define SPI_BASEADDR 0x40a00000
 #define MEMORY_BASEADDR 0x50000000
 #define FLASH_BASEADDR 0x86000000
 #define INTC_BASEADDR 0x81800000
 #define TIMER_BASEADDR 0x83c00000
 #define UART16550_BASEADDR 0x83e00000
 #define AXIENET_BASEADDR 0x82780000
 #define AXIDMA_BASEADDR 0x84600000

 #define AXIDMA_IRQ1         0
 #define AXIDMA_IRQ0         1
 #define TIMER_IRQ           2
 #define AXIENET_IRQ         3
 #define SPI_IRQ             4
 #define UART16550_IRQ       5

 static void
 petalogix_ml605_init(MachineState *machine)
 {
     ram_addr_t ram_size = machine->ram_size;
     MemoryRegion *address_space_mem = get_system_memory();
     DeviceState *dev, *dma, *eth0;
     Object *ds, *cs;
     MicroBlazeCPU *cpu;
     SysBusDevice *busdev;
     DriveInfo *dinfo;
     int i;
     MemoryRegion *phys_lmb_bram = g_new(MemoryRegion, 1);
     MemoryRegion *phys_ram = g_new(MemoryRegion, 1);
     qemu_irq irq[32];

     /* init CPUs */
     cpu = MICROBLAZE_CPU(object_new(TYPE_MICROBLAZE_CPU));
     object_property_set_str(OBJECT(cpu), "8.10.a", "version", &error_abort);
     /* Use FPU but don't use floating point conversion and square
      * root instructions
      */
     object_property_set_int(OBJECT(cpu), 1, "use-fpu", &error_abort);
     object_property_set_bool(OBJECT(cpu), true, "dcache-writeback",
                              &error_abort);
     object_property_set_bool(OBJECT(cpu), true, "endianness", &error_abort);
     object_property_set_bool(OBJECT(cpu), true, "realized", &error_abort);

     /* Attach emulated BRAM through the LMB.  */
     memory_region_init_ram(phys_lmb_bram, NULL, "petalogix_ml605.lmb_bram",
                            LMB_BRAM_SIZE, &error_fatal);
     memory_region_add_subregion(address_space_mem, 0x00000000, phys_lmb_bram);

     memory_region_init_ram(phys_ram, NULL, "petalogix_ml605.ram", ram_size,
                            &error_fatal);
     memory_region_add_subregion(address_space_mem, MEMORY_BASEADDR, phys_ram);

     dinfo = drive_get(IF_PFLASH, 0, 0);
     /* 5th parameter 2 means bank-width
      * 10th paremeter 0 means little-endian */
     pflash_cfi01_register(FLASH_BASEADDR, "petalogix_ml605.flash", FLASH_SIZE,
                           dinfo ? blk_by_legacy_dinfo(dinfo) : NULL,
                           64 * KiB, 2, 0x89, 0x18, 0x0000, 0x0, 0);


     dev = qdev_create(NULL, "xlnx.xps-intc");
     qdev_prop_set_uint32(dev, "kind-of-intr", 1 << TIMER_IRQ);
     qdev_init_nofail(dev);
     sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, INTC_BASEADDR);
     sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0,
                        qdev_get_gpio_in(DEVICE(cpu), MB_CPU_IRQ));
     for (i = 0; i < 32; i++) {
         irq[i] = qdev_get_gpio_in(dev, i);
     }

     serial_mm_init(address_space_mem, UART16550_BASEADDR + 0x1000, 2,
                    irq[UART16550_IRQ], 115200, serial_hd(0),
                    DEVICE_LITTLE_ENDIAN);

     /* 2 timers at irq 2 @ 100 Mhz.  */
     dev = qdev_create(NULL, "xlnx.xps-timer");
     qdev_prop_set_uint32(dev, "one-timer-only", 0);
     qdev_prop_set_uint32(dev, "clock-frequency", 100 * 1000000);
     qdev_init_nofail(dev);
     sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, TIMER_BASEADDR);
     sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, irq[TIMER_IRQ]);

     /* axi ethernet and dma initialization. */
     qemu_check_nic_model(&nd_table[0], "xlnx.axi-ethernet");
     eth0 = qdev_create(NULL, "xlnx.axi-ethernet");
     dma = qdev_create(NULL, "xlnx.axi-dma");

     /* FIXME: attach to the sysbus instead */
     object_property_add_child(qdev_get_machine(), "xilinx-eth", OBJECT(eth0),
                               NULL);
     object_property_add_child(qdev_get_machine(), "xilinx-dma", OBJECT(dma),
                               NULL);

     ds = object_property_get_link(OBJECT(dma),
                                   "axistream-connected-target", NULL);
     cs = object_property_get_link(OBJECT(dma),
                                   "axistream-control-connected-target", NULL);
     qdev_set_nic_properties(eth0, &nd_table[0]);
     qdev_prop_set_uint32(eth0, "rxmem", 0x1000);
     qdev_prop_set_uint32(eth0, "txmem", 0x1000);
     object_property_set_link(OBJECT(eth0), OBJECT(ds),
                              "axistream-connected", &error_abort);
     object_property_set_link(OBJECT(eth0), OBJECT(cs),
                              "axistream-control-connected", &error_abort);
     qdev_init_nofail(eth0);
     sysbus_mmio_map(SYS_BUS_DEVICE(eth0), 0, AXIENET_BASEADDR);
     sysbus_connect_irq(SYS_BUS_DEVICE(eth0), 0, irq[AXIENET_IRQ]);

     ds = object_property_get_link(OBJECT(eth0),
                                   "axistream-connected-target", NULL);
     cs = object_property_get_link(OBJECT(eth0),
                                   "axistream-control-connected-target", NULL);
     qdev_prop_set_uint32(dma, "freqhz", 100 * 1000000);
     object_property_set_link(OBJECT(dma), OBJECT(ds),
                              "axistream-connected", &error_abort);
     object_property_set_link(OBJECT(dma), OBJECT(cs),
                              "axistream-control-connected", &error_abort);
     qdev_init_nofail(dma);
     sysbus_mmio_map(SYS_BUS_DEVICE(dma), 0, AXIDMA_BASEADDR);
     sysbus_connect_irq(SYS_BUS_DEVICE(dma), 0, irq[AXIDMA_IRQ0]);
     sysbus_connect_irq(SYS_BUS_DEVICE(dma), 1, irq[AXIDMA_IRQ1]);

     {
         SSIBus *spi;

         dev = qdev_create(NULL, "xlnx.xps-spi");
         qdev_prop_set_uint8(dev, "num-ss-bits", NUM_SPI_FLASHES);
         qdev_init_nofail(dev);
         busdev = SYS_BUS_DEVICE(dev);
         sysbus_mmio_map(busdev, 0, SPI_BASEADDR);
         sysbus_connect_irq(busdev, 0, irq[SPI_IRQ]);

         spi = (SSIBus *)qdev_get_child_bus(dev, "spi");

         for (i = 0; i < NUM_SPI_FLASHES; i++) {
             DriveInfo *dinfo = drive_get_next(IF_MTD);
             qemu_irq cs_line;

             dev = ssi_create_slave_no_init(spi, "n25q128");
             if (dinfo) {
                 qdev_prop_set_drive(dev, "drive", blk_by_legacy_dinfo(dinfo),
                                     &error_fatal);
             }
             qdev_init_nofail(dev);

             cs_line = qdev_get_gpio_in_named(dev, SSI_GPIO_CS, 0);
             sysbus_connect_irq(busdev, i+1, cs_line);
         }
     }

     /* setup PVR to match kernel settings */
     cpu->env.pvr.regs[4] = 0xc56b8000;
     cpu->env.pvr.regs[5] = 0xc56be000;
     cpu->env.pvr.regs[10] = 0x0e000000; /* virtex 6 */

     microblaze_load_kernel(cpu, MEMORY_BASEADDR, ram_size,
                            machine->initrd_filename,
                            BINARY_DEVICE_TREE_FILE,
                            NULL);

 }

 static void petalogix_ml605_machine_init(MachineClass *mc)
 {
     mc->desc = "PetaLogix linux refdesign for xilinx ml605 little endian";
     mc->init = petalogix_ml605_init;
     mc->is_default = 0;
 }

 DEFINE_MACHINE("petalogix-ml605", petalogix_ml605_machine_init)
	/*
	* Model of Petalogix linux reference design targeting Xilinx Spartan ml605
	* board.
	*
	* Copyright (c) 2011 Michal Simek <monstr@monstr.eu>
	* Copyright (c) 2011 PetaLogix
	* Copyright (c) 2009 Edgar E. Iglesias.
	*
	* Permission is hereby granted, free of charge, to any person obtaining a copy
	* of this software and associated documentation files (the "Software"), to deal
	* in the Software without restriction, including without limitation the rights
	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	* copies of the Software, and to permit persons to whom the Software is
	* furnished to do so, subject to the following conditions:
	*
	* The above copyright notice and this permission notice shall be included in
	* all copies or substantial portions of the Software.
	*
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
	* THE SOFTWARE.
	*/

	#include "qemu/osdep.h"
	#include "qemu/units.h"
	#include "qapi/error.h"
	#include "cpu.h"
	#include "hw/sysbus.h"
	#include "net/net.h"
	#include "hw/block/flash.h"
	#include "sysemu/sysemu.h"
	#include "hw/boards.h"
	#include "hw/char/serial.h"
	#include "hw/qdev-properties.h"
	#include "exec/address-spaces.h"
	#include "hw/ssi/ssi.h"

	#include "boot.h"

	#include "hw/stream.h"

	#define LMB_BRAM_SIZE (128 * KiB)
	#define FLASH_SIZE (32 * MiB)

	#define BINARY_DEVICE_TREE_FILE "petalogix-ml605.dtb"

	#define NUM_SPI_FLASHES 4

	#define SPI_BASEADDR 0x40a00000
	#define MEMORY_BASEADDR 0x50000000
	#define FLASH_BASEADDR 0x86000000
	#define INTC_BASEADDR 0x81800000
	#define TIMER_BASEADDR 0x83c00000
	#define UART16550_BASEADDR 0x83e00000
	#define AXIENET_BASEADDR 0x82780000
	#define AXIDMA_BASEADDR 0x84600000

	#define AXIDMA_IRQ1 0
	#define AXIDMA_IRQ0 1
	#define TIMER_IRQ 2
	#define AXIENET_IRQ 3
	#define SPI_IRQ 4
	#define UART16550_IRQ 5

	static void
	petalogix_ml605_init(MachineState *machine)
	{
	ram_addr_t ram_size = machine->ram_size;
	MemoryRegion *address_space_mem = get_system_memory();
	DeviceState dev, dma, *eth0;
	Object ds, cs;
	MicroBlazeCPU *cpu;
	SysBusDevice *busdev;
	DriveInfo *dinfo;
	int i;
	MemoryRegion *phys_lmb_bram = g_new(MemoryRegion, 1);
	MemoryRegion *phys_ram = g_new(MemoryRegion, 1);
	qemu_irq irq[32];

	/* init CPUs */
	cpu = MICROBLAZE_CPU(object_new(TYPE_MICROBLAZE_CPU));
	object_property_set_str(OBJECT(cpu), "8.10.a", "version", &error_abort);
	/* Use FPU but don't use floating point conversion and square
	* root instructions
	*/
	object_property_set_int(OBJECT(cpu), 1, "use-fpu", &error_abort);
	object_property_set_bool(OBJECT(cpu), true, "dcache-writeback",
	&error_abort);
	object_property_set_bool(OBJECT(cpu), true, "endianness", &error_abort);
	object_property_set_bool(OBJECT(cpu), true, "realized", &error_abort);

	/* Attach emulated BRAM through the LMB. */
	memory_region_init_ram(phys_lmb_bram, NULL, "petalogix_ml605.lmb_bram",
	LMB_BRAM_SIZE, &error_fatal);
	memory_region_add_subregion(address_space_mem, 0x00000000, phys_lmb_bram);

	memory_region_init_ram(phys_ram, NULL, "petalogix_ml605.ram", ram_size,
	&error_fatal);
	memory_region_add_subregion(address_space_mem, MEMORY_BASEADDR, phys_ram);

	dinfo = drive_get(IF_PFLASH, 0, 0);
	/* 5th parameter 2 means bank-width
	* 10th paremeter 0 means little-endian */
	pflash_cfi01_register(FLASH_BASEADDR, "petalogix_ml605.flash", FLASH_SIZE,
	dinfo ? blk_by_legacy_dinfo(dinfo) : NULL,
	64 * KiB, 2, 0x89, 0x18, 0x0000, 0x0, 0);


	dev = qdev_create(NULL, "xlnx.xps-intc");
	qdev_prop_set_uint32(dev, "kind-of-intr", 1 << TIMER_IRQ);
	qdev_init_nofail(dev);
	sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, INTC_BASEADDR);
	sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0,
	qdev_get_gpio_in(DEVICE(cpu), MB_CPU_IRQ));
	for (i = 0; i < 32; i++) {
	irq[i] = qdev_get_gpio_in(dev, i);
	}

	serial_mm_init(address_space_mem, UART16550_BASEADDR + 0x1000, 2,
	irq[UART16550_IRQ], 115200, serial_hd(0),
	DEVICE_LITTLE_ENDIAN);

	/* 2 timers at irq 2 @ 100 Mhz. */
	dev = qdev_create(NULL, "xlnx.xps-timer");
	qdev_prop_set_uint32(dev, "one-timer-only", 0);
	qdev_prop_set_uint32(dev, "clock-frequency", 100 * 1000000);
	qdev_init_nofail(dev);
	sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, TIMER_BASEADDR);
	sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, irq[TIMER_IRQ]);

	/* axi ethernet and dma initialization. */
	qemu_check_nic_model(&nd_table[0], "xlnx.axi-ethernet");
	eth0 = qdev_create(NULL, "xlnx.axi-ethernet");
	dma = qdev_create(NULL, "xlnx.axi-dma");

	/* FIXME: attach to the sysbus instead */
	object_property_add_child(qdev_get_machine(), "xilinx-eth", OBJECT(eth0),
	NULL);
	object_property_add_child(qdev_get_machine(), "xilinx-dma", OBJECT(dma),
	NULL);

	ds = object_property_get_link(OBJECT(dma),
	"axistream-connected-target", NULL);
	cs = object_property_get_link(OBJECT(dma),
	"axistream-control-connected-target", NULL);
	qdev_set_nic_properties(eth0, &nd_table[0]);
	qdev_prop_set_uint32(eth0, "rxmem", 0x1000);
	qdev_prop_set_uint32(eth0, "txmem", 0x1000);
	object_property_set_link(OBJECT(eth0), OBJECT(ds),
	"axistream-connected", &error_abort);
	object_property_set_link(OBJECT(eth0), OBJECT(cs),
	"axistream-control-connected", &error_abort);
	qdev_init_nofail(eth0);
	sysbus_mmio_map(SYS_BUS_DEVICE(eth0), 0, AXIENET_BASEADDR);
	sysbus_connect_irq(SYS_BUS_DEVICE(eth0), 0, irq[AXIENET_IRQ]);

	ds = object_property_get_link(OBJECT(eth0),
	"axistream-connected-target", NULL);
	cs = object_property_get_link(OBJECT(eth0),
	"axistream-control-connected-target", NULL);
	qdev_prop_set_uint32(dma, "freqhz", 100 * 1000000);
	object_property_set_link(OBJECT(dma), OBJECT(ds),
	"axistream-connected", &error_abort);
	object_property_set_link(OBJECT(dma), OBJECT(cs),
	"axistream-control-connected", &error_abort);
	qdev_init_nofail(dma);
	sysbus_mmio_map(SYS_BUS_DEVICE(dma), 0, AXIDMA_BASEADDR);
	sysbus_connect_irq(SYS_BUS_DEVICE(dma), 0, irq[AXIDMA_IRQ0]);
	sysbus_connect_irq(SYS_BUS_DEVICE(dma), 1, irq[AXIDMA_IRQ1]);

	{
	SSIBus *spi;

	dev = qdev_create(NULL, "xlnx.xps-spi");
	qdev_prop_set_uint8(dev, "num-ss-bits", NUM_SPI_FLASHES);
	qdev_init_nofail(dev);
	busdev = SYS_BUS_DEVICE(dev);
	sysbus_mmio_map(busdev, 0, SPI_BASEADDR);
	sysbus_connect_irq(busdev, 0, irq[SPI_IRQ]);

	spi = (SSIBus *)qdev_get_child_bus(dev, "spi");

	for (i = 0; i < NUM_SPI_FLASHES; i++) {
	DriveInfo *dinfo = drive_get_next(IF_MTD);
	qemu_irq cs_line;

	dev = ssi_create_slave_no_init(spi, "n25q128");
	if (dinfo) {
	qdev_prop_set_drive(dev, "drive", blk_by_legacy_dinfo(dinfo),
	&error_fatal);
	}
	qdev_init_nofail(dev);

	cs_line = qdev_get_gpio_in_named(dev, SSI_GPIO_CS, 0);
	sysbus_connect_irq(busdev, i+1, cs_line);
	}
	}

	/* setup PVR to match kernel settings */
	cpu->env.pvr.regs[4] = 0xc56b8000;
	cpu->env.pvr.regs[5] = 0xc56be000;
	cpu->env.pvr.regs[10] = 0x0e000000; /* virtex 6 */

	microblaze_load_kernel(cpu, MEMORY_BASEADDR, ram_size,
	machine->initrd_filename,
	BINARY_DEVICE_TREE_FILE,
	NULL);

	}

	static void petalogix_ml605_machine_init(MachineClass *mc)
	{
	mc->desc = "PetaLogix linux refdesign for xilinx ml605 little endian";
	mc->init = petalogix_ml605_init;
	mc->is_default = 0;
	}

	DEFINE_MACHINE("petalogix-ml605", petalogix_ml605_machine_init)