static void stellaris_init(const char *kernel_filename, const char *cpu_model, stellaris_board_info *board) { static const int uart_irq[] = {5, 6, 33, 34}; static const int timer_irq[] = {19, 21, 23, 35}; static const uint32_t gpio_addr[7] = { 0x40004000, 0x40005000, 0x40006000, 0x40007000, 0x40024000, 0x40025000, 0x40026000}; static const int gpio_irq[7] = {0, 1, 2, 3, 4, 30, 31}; qemu_irq *pic; DeviceState *gpio_dev[7]; qemu_irq gpio_in[7][8]; qemu_irq gpio_out[7][8]; qemu_irq adc; int sram_size; int flash_size; I2CBus *i2c; DeviceState *dev; int i; int j; MemoryRegion *sram = g_new(MemoryRegion, 1); MemoryRegion *flash = g_new(MemoryRegion, 1); MemoryRegion *system_memory = get_system_memory(); flash_size = (((board->dc0 & 0xffff) + 1) << 1) * 1024; sram_size = ((board->dc0 >> 18) + 1) * 1024; /* Flash programming is done via the SCU, so pretend it is ROM. */ memory_region_init_ram(flash, NULL, "stellaris.flash", flash_size, &error_abort); vmstate_register_ram_global(flash); memory_region_set_readonly(flash, true); memory_region_add_subregion(system_memory, 0, flash); memory_region_init_ram(sram, NULL, "stellaris.sram", sram_size, &error_abort); vmstate_register_ram_global(sram); memory_region_add_subregion(system_memory, 0x20000000, sram); pic = armv7m_init(system_memory, flash_size, NUM_IRQ_LINES, kernel_filename, cpu_model); if (board->dc1 & (1 << 16)) { dev = sysbus_create_varargs(TYPE_STELLARIS_ADC, 0x40038000, pic[14], pic[15], pic[16], pic[17], NULL); adc = qdev_get_gpio_in(dev, 0); } else { adc = NULL; } for (i = 0; i < 4; i++) { if (board->dc2 & (0x10000 << i)) { dev = sysbus_create_simple(TYPE_STELLARIS_GPTM, 0x40030000 + i * 0x1000, pic[timer_irq[i]]); /* TODO: This is incorrect, but we get away with it because the ADC output is only ever pulsed. */ qdev_connect_gpio_out(dev, 0, adc); } } stellaris_sys_init(0x400fe000, pic[28], board, nd_table[0].macaddr.a); for (i = 0; i < 7; i++) { if (board->dc4 & (1 << i)) { gpio_dev[i] = sysbus_create_simple("pl061_luminary", gpio_addr[i], pic[gpio_irq[i]]); for (j = 0; j < 8; j++) { gpio_in[i][j] = qdev_get_gpio_in(gpio_dev[i], j); gpio_out[i][j] = NULL; } } } if (board->dc2 & (1 << 12)) { dev = sysbus_create_simple(TYPE_STELLARIS_I2C, 0x40020000, pic[8]); i2c = (I2CBus *)qdev_get_child_bus(dev, "i2c"); if (board->peripherals & BP_OLED_I2C) { i2c_create_slave(i2c, "ssd0303", 0x3d); } } for (i = 0; i < 4; i++) { if (board->dc2 & (1 << i)) { sysbus_create_simple("pl011_luminary", 0x4000c000 + i * 0x1000, pic[uart_irq[i]]); } } if (board->dc2 & (1 << 4)) { dev = sysbus_create_simple("pl022", 0x40008000, pic[7]); if (board->peripherals & BP_OLED_SSI) { void *bus; DeviceState *sddev; DeviceState *ssddev; /* Some boards have both an OLED controller and SD card connected to * the same SSI port, with the SD card chip select connected to a * GPIO pin. Technically the OLED chip select is connected to the * SSI Fss pin. We do not bother emulating that as both devices * should never be selected simultaneously, and our OLED controller * ignores stray 0xff commands that occur when deselecting the SD * card. */ bus = qdev_get_child_bus(dev, "ssi"); sddev = ssi_create_slave(bus, "ssi-sd"); ssddev = ssi_create_slave(bus, "ssd0323"); gpio_out[GPIO_D][0] = qemu_irq_split( qdev_get_gpio_in_named(sddev, SSI_GPIO_CS, 0), qdev_get_gpio_in_named(ssddev, SSI_GPIO_CS, 0)); gpio_out[GPIO_C][7] = qdev_get_gpio_in(ssddev, 0); /* Make sure the select pin is high. */ qemu_irq_raise(gpio_out[GPIO_D][0]); } } if (board->dc4 & (1 << 28)) { DeviceState *enet; qemu_check_nic_model(&nd_table[0], "stellaris"); enet = qdev_create(NULL, "stellaris_enet"); qdev_set_nic_properties(enet, &nd_table[0]); qdev_init_nofail(enet); sysbus_mmio_map(SYS_BUS_DEVICE(enet), 0, 0x40048000); sysbus_connect_irq(SYS_BUS_DEVICE(enet), 0, pic[42]); } if (board->peripherals & BP_GAMEPAD) { qemu_irq gpad_irq[5]; static const int gpad_keycode[5] = { 0xc8, 0xd0, 0xcb, 0xcd, 0x1d }; gpad_irq[0] = qemu_irq_invert(gpio_in[GPIO_E][0]); /* up */ gpad_irq[1] = qemu_irq_invert(gpio_in[GPIO_E][1]); /* down */ gpad_irq[2] = qemu_irq_invert(gpio_in[GPIO_E][2]); /* left */ gpad_irq[3] = qemu_irq_invert(gpio_in[GPIO_E][3]); /* right */ gpad_irq[4] = qemu_irq_invert(gpio_in[GPIO_F][1]); /* select */ stellaris_gamepad_init(5, gpad_irq, gpad_keycode); } for (i = 0; i < 7; i++) { if (board->dc4 & (1 << i)) { for (j = 0; j < 8; j++) { if (gpio_out[i][j]) { qdev_connect_gpio_out(gpio_dev[i], j, gpio_out[i][j]); } } } } }