diff options
Diffstat (limited to 'src/hw/microblaze/petalogix_s3adsp1800_mmu.c')
| -rw-r--r-- | src/hw/microblaze/petalogix_s3adsp1800_mmu.c | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/src/hw/microblaze/petalogix_s3adsp1800_mmu.c b/src/hw/microblaze/petalogix_s3adsp1800_mmu.c new file mode 100644 index 0000000..3381156 --- /dev/null +++ b/src/hw/microblaze/petalogix_s3adsp1800_mmu.c @@ -0,0 +1,134 @@ +/* + * Model of Petalogix linux reference design targeting Xilinx Spartan 3ADSP-1800 + * boards. + * + * 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 "hw/sysbus.h" +#include "hw/hw.h" +#include "net/net.h" +#include "hw/block/flash.h" +#include "sysemu/sysemu.h" +#include "hw/devices.h" +#include "hw/boards.h" +#include "sysemu/block-backend.h" +#include "exec/address-spaces.h" + +#include "boot.h" + +#define LMB_BRAM_SIZE (128 * 1024) +#define FLASH_SIZE (16 * 1024 * 1024) + +#define BINARY_DEVICE_TREE_FILE "petalogix-s3adsp1800.dtb" + +#define MEMORY_BASEADDR 0x90000000 +#define FLASH_BASEADDR 0xa0000000 +#define INTC_BASEADDR 0x81800000 +#define TIMER_BASEADDR 0x83c00000 +#define UARTLITE_BASEADDR 0x84000000 +#define ETHLITE_BASEADDR 0x81000000 + +#define TIMER_IRQ 0 +#define ETHLITE_IRQ 1 +#define UARTLITE_IRQ 3 + +static void +petalogix_s3adsp1800_init(MachineState *machine) +{ + ram_addr_t ram_size = machine->ram_size; + DeviceState *dev; + MicroBlazeCPU *cpu; + DriveInfo *dinfo; + int i; + hwaddr ddr_base = MEMORY_BASEADDR; + MemoryRegion *phys_lmb_bram = g_new(MemoryRegion, 1); + MemoryRegion *phys_ram = g_new(MemoryRegion, 1); + qemu_irq irq[32]; + MemoryRegion *sysmem = get_system_memory(); + + cpu = MICROBLAZE_CPU(object_new(TYPE_MICROBLAZE_CPU)); + 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_s3adsp1800.lmb_bram", LMB_BRAM_SIZE, + &error_fatal); + vmstate_register_ram_global(phys_lmb_bram); + memory_region_add_subregion(sysmem, 0x00000000, phys_lmb_bram); + + memory_region_init_ram(phys_ram, NULL, "petalogix_s3adsp1800.ram", + ram_size, &error_fatal); + vmstate_register_ram_global(phys_ram); + memory_region_add_subregion(sysmem, ddr_base, phys_ram); + + dinfo = drive_get(IF_PFLASH, 0, 0); + pflash_cfi01_register(FLASH_BASEADDR, + NULL, "petalogix_s3adsp1800.flash", FLASH_SIZE, + dinfo ? blk_by_legacy_dinfo(dinfo) : NULL, + (64 * 1024), FLASH_SIZE >> 16, + 1, 0x89, 0x18, 0x0000, 0x0, 1); + + dev = qdev_create(NULL, "xlnx.xps-intc"); + qdev_prop_set_uint32(dev, "kind-of-intr", + 1 << ETHLITE_IRQ | 1 << UARTLITE_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); + } + + sysbus_create_simple("xlnx.xps-uartlite", UARTLITE_BASEADDR, + irq[UARTLITE_IRQ]); + + /* 2 timers at irq 2 @ 62 Mhz. */ + dev = qdev_create(NULL, "xlnx.xps-timer"); + qdev_prop_set_uint32(dev, "one-timer-only", 0); + qdev_prop_set_uint32(dev, "clock-frequency", 62 * 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]); + + qemu_check_nic_model(&nd_table[0], "xlnx.xps-ethernetlite"); + dev = qdev_create(NULL, "xlnx.xps-ethernetlite"); + qdev_set_nic_properties(dev, &nd_table[0]); + qdev_prop_set_uint32(dev, "tx-ping-pong", 0); + qdev_prop_set_uint32(dev, "rx-ping-pong", 0); + qdev_init_nofail(dev); + sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, ETHLITE_BASEADDR); + sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, irq[ETHLITE_IRQ]); + + microblaze_load_kernel(cpu, ddr_base, ram_size, + machine->initrd_filename, + BINARY_DEVICE_TREE_FILE, + NULL); +} + +static void petalogix_s3adsp1800_machine_init(MachineClass *mc) +{ + mc->desc = "PetaLogix linux refdesign for xilinx Spartan 3ADSP1800"; + mc->init = petalogix_s3adsp1800_init; + mc->is_default = 1; +} + +DEFINE_MACHINE("petalogix-s3adsp1800", petalogix_s3adsp1800_machine_init) |
