From 3a0f31bcb825d37e145411c62b11c3704279de4e Mon Sep 17 00:00:00 2001 From: Jean-Christophe DUBOIS Date: Thu, 12 May 2016 13:22:29 +0100 Subject: [PATCH] i.MX: Add sabrelite i.MX6 emulation. The sabrelite supports one SPI FLASH memory on SPI1 Signed-off-by: Jean-Christophe Dubois Reviewed-by: Peter Maydell Signed-off-by: Peter Maydell --- hw/arm/Makefile.objs | 2 +- hw/arm/sabrelite.c | 121 +++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 122 insertions(+), 1 deletion(-) create mode 100644 hw/arm/sabrelite.c diff --git a/hw/arm/Makefile.objs b/hw/arm/Makefile.objs index 2b20e49f4e..12764ef2b7 100644 --- a/hw/arm/Makefile.objs +++ b/hw/arm/Makefile.objs @@ -16,5 +16,5 @@ obj-$(CONFIG_STM32F205_SOC) += stm32f205_soc.o obj-$(CONFIG_XLNX_ZYNQMP) += xlnx-zynqmp.o xlnx-ep108.o obj-$(CONFIG_FSL_IMX25) += fsl-imx25.o imx25_pdk.o obj-$(CONFIG_FSL_IMX31) += fsl-imx31.o kzm.o -obj-$(CONFIG_FSL_IMX6) += fsl-imx6.o +obj-$(CONFIG_FSL_IMX6) += fsl-imx6.o sabrelite.o obj-$(CONFIG_ASPEED_SOC) += ast2400.o palmetto-bmc.o diff --git a/hw/arm/sabrelite.c b/hw/arm/sabrelite.c new file mode 100644 index 0000000000..776c51e398 --- /dev/null +++ b/hw/arm/sabrelite.c @@ -0,0 +1,121 @@ +/* + * SABRELITE Board System emulation. + * + * Copyright (c) 2015 Jean-Christophe Dubois + * + * This code is licensed under the GPL, version 2 or later. + * See the file `COPYING' in the top level directory. + * + * It (partially) emulates a sabrelite board, with a Freescale + * i.MX6 SoC + */ + +#include "qemu/osdep.h" +#include "qapi/error.h" +#include "qemu-common.h" +#include "hw/arm/fsl-imx6.h" +#include "hw/boards.h" +#include "sysemu/sysemu.h" +#include "qemu/error-report.h" +#include "sysemu/qtest.h" + +typedef struct IMX6Sabrelite { + FslIMX6State soc; + MemoryRegion ram; +} IMX6Sabrelite; + +static struct arm_boot_info sabrelite_binfo = { + /* DDR memory start */ + .loader_start = FSL_IMX6_MMDC_ADDR, + /* No board ID, we boot from DT tree */ + .board_id = -1, +}; + +/* No need to do any particular setup for secondary boot */ +static void sabrelite_write_secondary(ARMCPU *cpu, + const struct arm_boot_info *info) +{ +} + +/* Secondary cores are reset through SRC device */ +static void sabrelite_reset_secondary(ARMCPU *cpu, + const struct arm_boot_info *info) +{ +} + +static void sabrelite_init(MachineState *machine) +{ + IMX6Sabrelite *s = g_new0(IMX6Sabrelite, 1); + Error *err = NULL; + + /* Check the amount of memory is compatible with the SOC */ + if (machine->ram_size > FSL_IMX6_MMDC_SIZE) { + error_report("RAM size " RAM_ADDR_FMT " above max supported (%08x)", + machine->ram_size, FSL_IMX6_MMDC_SIZE); + exit(1); + } + + object_initialize(&s->soc, sizeof(s->soc), TYPE_FSL_IMX6); + object_property_add_child(OBJECT(machine), "soc", OBJECT(&s->soc), + &error_abort); + + object_property_set_bool(OBJECT(&s->soc), true, "realized", &err); + if (err != NULL) { + error_report("%s", error_get_pretty(err)); + exit(1); + } + + memory_region_allocate_system_memory(&s->ram, NULL, "sabrelite.ram", + machine->ram_size); + memory_region_add_subregion(get_system_memory(), FSL_IMX6_MMDC_ADDR, + &s->ram); + + { + /* + * TODO: Ideally we would expose the chip select and spi bus on the + * SoC object using alias properties; then we would not need to + * directly access the underlying spi device object. + */ + /* Add the sst25vf016b NOR FLASH memory to first SPI */ + Object *spi_dev; + + spi_dev = object_resolve_path_component(OBJECT(&s->soc), "spi1"); + if (spi_dev) { + SSIBus *spi_bus; + + spi_bus = (SSIBus *)qdev_get_child_bus(DEVICE(spi_dev), "spi"); + if (spi_bus) { + DeviceState *flash_dev; + + flash_dev = ssi_create_slave(spi_bus, "sst25vf016b"); + if (flash_dev) { + qemu_irq cs_line = qdev_get_gpio_in_named(flash_dev, + SSI_GPIO_CS, 0); + sysbus_connect_irq(SYS_BUS_DEVICE(spi_dev), 1, cs_line); + } + } + } + } + + sabrelite_binfo.ram_size = machine->ram_size; + sabrelite_binfo.kernel_filename = machine->kernel_filename; + sabrelite_binfo.kernel_cmdline = machine->kernel_cmdline; + sabrelite_binfo.initrd_filename = machine->initrd_filename; + sabrelite_binfo.nb_cpus = smp_cpus; + sabrelite_binfo.secure_boot = true; + sabrelite_binfo.write_secondary_boot = sabrelite_write_secondary; + sabrelite_binfo.secondary_cpu_reset_hook = sabrelite_reset_secondary; + + if (!qtest_enabled()) { + arm_load_kernel(&s->soc.cpu[0], &sabrelite_binfo); + } +} + +static void sabrelite_machine_init(MachineClass *mc) +{ + mc->desc = "Freescale i.MX6 Quad SABRE Lite Board (Cortex A9)"; + mc->init = sabrelite_init; + mc->max_cpus = FSL_IMX6_NUM_CPUS; +} + +DEFINE_MACHINE("sabrelite", sabrelite_machine_init) -- 2.11.4.GIT