diff options
Diffstat (limited to 'hw/axis_dev88.c')
| -rw-r--r-- | hw/axis_dev88.c | 366 |
1 files changed, 0 insertions, 366 deletions
diff --git a/hw/axis_dev88.c b/hw/axis_dev88.c deleted file mode 100644 index eccd423abf..0000000000 --- a/hw/axis_dev88.c +++ /dev/null @@ -1,366 +0,0 @@ -/* - * QEMU model for the AXIS devboard 88. - * - * Copyright (c) 2009 Edgar E. Iglesias, Axis Communications AB. - * - * 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 "net/net.h" -#include "hw/flash.h" -#include "hw/boards.h" -#include "hw/etraxfs.h" -#include "hw/loader.h" -#include "elf.h" -#include "hw/cris-boot.h" -#include "sysemu/blockdev.h" -#include "exec/address-spaces.h" - -#define D(x) -#define DNAND(x) - -struct nand_state_t -{ - DeviceState *nand; - MemoryRegion iomem; - unsigned int rdy:1; - unsigned int ale:1; - unsigned int cle:1; - unsigned int ce:1; -}; - -static struct nand_state_t nand_state; -static uint64_t nand_read(void *opaque, hwaddr addr, unsigned size) -{ - struct nand_state_t *s = opaque; - uint32_t r; - int rdy; - - r = nand_getio(s->nand); - nand_getpins(s->nand, &rdy); - s->rdy = rdy; - - DNAND(printf("%s addr=%x r=%x\n", __func__, addr, r)); - return r; -} - -static void -nand_write(void *opaque, hwaddr addr, uint64_t value, - unsigned size) -{ - struct nand_state_t *s = opaque; - int rdy; - - DNAND(printf("%s addr=%x v=%x\n", __func__, addr, (unsigned)value)); - nand_setpins(s->nand, s->cle, s->ale, s->ce, 1, 0); - nand_setio(s->nand, value); - nand_getpins(s->nand, &rdy); - s->rdy = rdy; -} - -static const MemoryRegionOps nand_ops = { - .read = nand_read, - .write = nand_write, - .endianness = DEVICE_NATIVE_ENDIAN, -}; - -struct tempsensor_t -{ - unsigned int shiftreg; - unsigned int count; - enum { - ST_OUT, ST_IN, ST_Z - } state; - - uint16_t regs[3]; -}; - -static void tempsensor_clkedge(struct tempsensor_t *s, - unsigned int clk, unsigned int data_in) -{ - D(printf("%s clk=%d state=%d sr=%x\n", __func__, - clk, s->state, s->shiftreg)); - if (s->count == 0) { - s->count = 16; - s->state = ST_OUT; - } - switch (s->state) { - case ST_OUT: - /* Output reg is clocked at negedge. */ - if (!clk) { - s->count--; - s->shiftreg <<= 1; - if (s->count == 0) { - s->shiftreg = 0; - s->state = ST_IN; - s->count = 16; - } - } - break; - case ST_Z: - if (clk) { - s->count--; - if (s->count == 0) { - s->shiftreg = 0; - s->state = ST_OUT; - s->count = 16; - } - } - break; - case ST_IN: - /* Indata is sampled at posedge. */ - if (clk) { - s->count--; - s->shiftreg <<= 1; - s->shiftreg |= data_in & 1; - if (s->count == 0) { - D(printf("%s cfgreg=%x\n", __func__, s->shiftreg)); - s->regs[0] = s->shiftreg; - s->state = ST_OUT; - s->count = 16; - - if ((s->regs[0] & 0xff) == 0) { - /* 25 degrees celcius. */ - s->shiftreg = 0x0b9f; - } else if ((s->regs[0] & 0xff) == 0xff) { - /* Sensor ID, 0x8100 LM70. */ - s->shiftreg = 0x8100; - } else - printf("Invalid tempsens state %x\n", s->regs[0]); - } - } - break; - } -} - - -#define RW_PA_DOUT 0x00 -#define R_PA_DIN 0x01 -#define RW_PA_OE 0x02 -#define RW_PD_DOUT 0x10 -#define R_PD_DIN 0x11 -#define RW_PD_OE 0x12 - -static struct gpio_state_t -{ - MemoryRegion iomem; - struct nand_state_t *nand; - struct tempsensor_t tempsensor; - uint32_t regs[0x5c / 4]; -} gpio_state; - -static uint64_t gpio_read(void *opaque, hwaddr addr, unsigned size) -{ - struct gpio_state_t *s = opaque; - uint32_t r = 0; - - addr >>= 2; - switch (addr) - { - case R_PA_DIN: - r = s->regs[RW_PA_DOUT] & s->regs[RW_PA_OE]; - - /* Encode pins from the nand. */ - r |= s->nand->rdy << 7; - break; - case R_PD_DIN: - r = s->regs[RW_PD_DOUT] & s->regs[RW_PD_OE]; - - /* Encode temp sensor pins. */ - r |= (!!(s->tempsensor.shiftreg & 0x10000)) << 4; - break; - - default: - r = s->regs[addr]; - break; - } - return r; - D(printf("%s %x=%x\n", __func__, addr, r)); -} - -static void gpio_write(void *opaque, hwaddr addr, uint64_t value, - unsigned size) -{ - struct gpio_state_t *s = opaque; - D(printf("%s %x=%x\n", __func__, addr, (unsigned)value)); - - addr >>= 2; - switch (addr) - { - case RW_PA_DOUT: - /* Decode nand pins. */ - s->nand->ale = !!(value & (1 << 6)); - s->nand->cle = !!(value & (1 << 5)); - s->nand->ce = !!(value & (1 << 4)); - - s->regs[addr] = value; - break; - - case RW_PD_DOUT: - /* Temp sensor clk. */ - if ((s->regs[addr] ^ value) & 2) - tempsensor_clkedge(&s->tempsensor, !!(value & 2), - !!(value & 16)); - s->regs[addr] = value; - break; - - default: - s->regs[addr] = value; - break; - } -} - -static const MemoryRegionOps gpio_ops = { - .read = gpio_read, - .write = gpio_write, - .endianness = DEVICE_NATIVE_ENDIAN, - .valid = { - .min_access_size = 4, - .max_access_size = 4, - }, -}; - -#define INTMEM_SIZE (128 * 1024) - -static struct cris_load_info li; - -static -void axisdev88_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; - CRISCPU *cpu; - CPUCRISState *env; - DeviceState *dev; - SysBusDevice *s; - DriveInfo *nand; - qemu_irq irq[30], nmi[2], *cpu_irq; - void *etraxfs_dmac; - struct etraxfs_dma_client *dma_eth; - int i; - MemoryRegion *address_space_mem = get_system_memory(); - MemoryRegion *phys_ram = g_new(MemoryRegion, 1); - MemoryRegion *phys_intmem = g_new(MemoryRegion, 1); - - /* init CPUs */ - if (cpu_model == NULL) { - cpu_model = "crisv32"; - } - cpu = cpu_cris_init(cpu_model); - env = &cpu->env; - - /* allocate RAM */ - memory_region_init_ram(phys_ram, "axisdev88.ram", ram_size); - vmstate_register_ram_global(phys_ram); - memory_region_add_subregion(address_space_mem, 0x40000000, phys_ram); - - /* The ETRAX-FS has 128Kb on chip ram, the docs refer to it as the - internal memory. */ - memory_region_init_ram(phys_intmem, "axisdev88.chipram", INTMEM_SIZE); - vmstate_register_ram_global(phys_intmem); - memory_region_add_subregion(address_space_mem, 0x38000000, phys_intmem); - - /* Attach a NAND flash to CS1. */ - nand = drive_get(IF_MTD, 0, 0); - nand_state.nand = nand_init(nand ? nand->bdrv : NULL, - NAND_MFR_STMICRO, 0x39); - memory_region_init_io(&nand_state.iomem, &nand_ops, &nand_state, - "nand", 0x05000000); - memory_region_add_subregion(address_space_mem, 0x10000000, - &nand_state.iomem); - - gpio_state.nand = &nand_state; - memory_region_init_io(&gpio_state.iomem, &gpio_ops, &gpio_state, - "gpio", 0x5c); - memory_region_add_subregion(address_space_mem, 0x3001a000, - &gpio_state.iomem); - - - cpu_irq = cris_pic_init_cpu(env); - dev = qdev_create(NULL, "etraxfs,pic"); - /* FIXME: Is there a proper way to signal vectors to the CPU core? */ - qdev_prop_set_ptr(dev, "interrupt_vector", &env->interrupt_vector); - qdev_init_nofail(dev); - s = SYS_BUS_DEVICE(dev); - sysbus_mmio_map(s, 0, 0x3001c000); - sysbus_connect_irq(s, 0, cpu_irq[0]); - sysbus_connect_irq(s, 1, cpu_irq[1]); - for (i = 0; i < 30; i++) { - irq[i] = qdev_get_gpio_in(dev, i); - } - nmi[0] = qdev_get_gpio_in(dev, 30); - nmi[1] = qdev_get_gpio_in(dev, 31); - - etraxfs_dmac = etraxfs_dmac_init(0x30000000, 10); - for (i = 0; i < 10; i++) { - /* On ETRAX, odd numbered channels are inputs. */ - etraxfs_dmac_connect(etraxfs_dmac, i, irq + 7 + i, i & 1); - } - - /* Add the two ethernet blocks. */ - dma_eth = g_malloc0(sizeof dma_eth[0] * 4); /* Allocate 4 channels. */ - etraxfs_eth_init(&nd_table[0], 0x30034000, 1, &dma_eth[0], &dma_eth[1]); - if (nb_nics > 1) { - etraxfs_eth_init(&nd_table[1], 0x30036000, 2, &dma_eth[2], &dma_eth[3]); - } - - /* The DMA Connector block is missing, hardwire things for now. */ - etraxfs_dmac_connect_client(etraxfs_dmac, 0, &dma_eth[0]); - etraxfs_dmac_connect_client(etraxfs_dmac, 1, &dma_eth[1]); - if (nb_nics > 1) { - etraxfs_dmac_connect_client(etraxfs_dmac, 6, &dma_eth[2]); - etraxfs_dmac_connect_client(etraxfs_dmac, 7, &dma_eth[3]); - } - - /* 2 timers. */ - sysbus_create_varargs("etraxfs,timer", 0x3001e000, irq[0x1b], nmi[1], NULL); - sysbus_create_varargs("etraxfs,timer", 0x3005e000, irq[0x1b], nmi[1], NULL); - - for (i = 0; i < 4; i++) { - sysbus_create_simple("etraxfs,serial", 0x30026000 + i * 0x2000, - irq[0x14 + i]); - } - - if (!kernel_filename) { - fprintf(stderr, "Kernel image must be specified\n"); - exit(1); - } - - li.image_filename = kernel_filename; - li.cmdline = kernel_cmdline; - cris_load_image(cpu, &li); -} - -static QEMUMachine axisdev88_machine = { - .name = "axis-dev88", - .desc = "AXIS devboard 88", - .init = axisdev88_init, - .is_default = 1, - DEFAULT_MACHINE_OPTIONS, -}; - -static void axisdev88_machine_init(void) -{ - qemu_register_machine(&axisdev88_machine); -} - -machine_init(axisdev88_machine_init); |