Introduce the new board, define every bits.
Tested-by: Max Filippov jcmvbkbc@gmail.com Signed-off-by: Jiaxun Yang jiaxun.yang@flygoat.com --- v2: - Fix maintainers entries - Refine address mapping for noMMU machine - Add a dtsi overlay to describe different memory size for noMMU system v3: - Use dc233c as default CPU --- arch/xtensa/Kconfig | 5 +++ arch/xtensa/dts/virt-u-boot.dtsi | 17 +++++++++ board/emulation/qemu-xtensa/Kconfig | 43 ++++++++++++++++++++++ board/emulation/qemu-xtensa/MAINTAINERS | 8 +++++ board/emulation/qemu-xtensa/Makefile | 5 +++ board/emulation/qemu-xtensa/qemu-xtensa.c | 60 +++++++++++++++++++++++++++++++ configs/qemu-xtensa-dc233c_defconfig | 32 +++++++++++++++++ include/configs/qemu-xtensa.h | 36 +++++++++++++++++++ 8 files changed, 206 insertions(+)
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig index 4afd56bca095..70eebb4bd22f 100644 --- a/arch/xtensa/Kconfig +++ b/arch/xtensa/Kconfig @@ -15,6 +15,10 @@ config TARGET_XTFPGA bool "Support XTFPGA" select BOARD_POSTCLK_INIT
+config TARGET_QEMU_XTENSA + bool "Support QEMU Xtensa Virt Board" + select BOARD_LATE_INIT + endchoice
config SYS_ICACHE_OFF @@ -69,5 +73,6 @@ config XTENSA_SIMCALL_GDBIO endchoice
source "board/cadence/xtfpga/Kconfig" +source "board/emulation/qemu-xtensa/Kconfig"
endmenu diff --git a/arch/xtensa/dts/virt-u-boot.dtsi b/arch/xtensa/dts/virt-u-boot.dtsi new file mode 100644 index 000000000000..22b4683e7617 --- /dev/null +++ b/arch/xtensa/dts/virt-u-boot.dtsi @@ -0,0 +1,17 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2024 Jiaxun Yang jiaxun.yang@flygoat.com + */ + +#include <config.h> + +/ { + memory@0 { + device_type = "memory"; +#if XCHAL_HAVE_PTP_MMU + reg = <0x00000000 CFG_SYS_SDRAM_SIZE>; +#else + reg = <CFG_SYS_MEMORY_BASE CFG_SYS_SDRAM_SIZE>; +#endif + }; +}; diff --git a/board/emulation/qemu-xtensa/Kconfig b/board/emulation/qemu-xtensa/Kconfig new file mode 100644 index 000000000000..8767b6fabbdb --- /dev/null +++ b/board/emulation/qemu-xtensa/Kconfig @@ -0,0 +1,43 @@ +if TARGET_QEMU_XTENSA + +config SYS_BOARD + default "qemu-xtensa" + +config SYS_VENDOR + default "emulation" + +config SYS_CONFIG_NAME + default "qemu-xtensa" + +config TEXT_BASE + default 0x50000000 if (SYS_CPU = de212) + default 0xfe000000 + +config BOARD_SPECIFIC_OPTIONS # dummy + def_bool y + select BOARD_EARLY_INIT_F + select DM + select CPU + select CPU_XTENSA + select CLK + select DM_SERIAL + select XTENSA_SEMIHOSTING + select XTENSA_SEMIHOSTING_SERIAL + imply BLK + imply VIRTIO + imply VIRTIO_PCI + imply VIRTIO_NET + imply VIRTIO_BLK + imply E1000 + imply PCI + imply PCI_INIT_R + imply NVME_PCI + imply PCIE_ECAM_GENERIC + imply SCSI + imply REMAKE_ELF + select OF_CONTROL + select OF_UPSTREAM + imply CMD_DM + imply CMD_PCI + +endif diff --git a/board/emulation/qemu-xtensa/MAINTAINERS b/board/emulation/qemu-xtensa/MAINTAINERS new file mode 100644 index 000000000000..6ffdfe85deeb --- /dev/null +++ b/board/emulation/qemu-xtensa/MAINTAINERS @@ -0,0 +1,8 @@ +QEMU XTENSA 'VIRT' BOARD +M: Jiaxun Yang jiaxun.yang@flygoat.com +M: Max Filippov jcmvbkbc@gmail.com +S: Maintained +F: board/emulation/qemu-xtensa/ +F: board/emulation/common/ +F: include/configs/qemu-xtensa.h +F: configs/qemu-xtensa-dc233c_defconfig diff --git a/board/emulation/qemu-xtensa/Makefile b/board/emulation/qemu-xtensa/Makefile new file mode 100644 index 000000000000..0f33a65f6c6b --- /dev/null +++ b/board/emulation/qemu-xtensa/Makefile @@ -0,0 +1,5 @@ +# SPDX-License-Identifier: GPL-2.0+ +# +# Copyright (C) 2024, Jiaxun Yang jiaxun.yang@flygoat.com + +obj-y += qemu-xtensa.o diff --git a/board/emulation/qemu-xtensa/qemu-xtensa.c b/board/emulation/qemu-xtensa/qemu-xtensa.c new file mode 100644 index 000000000000..0ca83341c25c --- /dev/null +++ b/board/emulation/qemu-xtensa/qemu-xtensa.c @@ -0,0 +1,60 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2018, Bin Meng bmeng.cn@gmail.com + */ + +#include <dm.h> +#include <cpu.h> +#include <log.h> +#include <init.h> +#include <usb.h> +#include <virtio_types.h> +#include <virtio.h> + +DECLARE_GLOBAL_DATA_PTR; + +int board_init(void) +{ + return 0; +} + +unsigned long get_board_sys_clk(void) +{ + return gd->cpu_clk ? gd->cpu_clk : 40000000; +} + +int dram_init(void) +{ + return fdtdec_setup_mem_size_base(); +} + +int board_early_init_f(void) +{ + struct cpu_plat *cpu_plat; + struct udevice *cpu = cpu_get_current_dev(); + + if (!cpu) + return -ENODEV; + + cpu_plat = dev_get_parent_plat(cpu); + if (!cpu_plat) + return -ENODEV; + + gd->cpu_clk = cpu_plat->timebase_freq; + return 0; +} + +int board_late_init(void) +{ + /* start usb so that usb keyboard can be used as input device */ + if (CONFIG_IS_ENABLED(USB_KEYBOARD)) + usb_init(); + + /* + * Make sure virtio bus is enumerated so that peripherals + * on the virtio bus can be discovered by their drivers + */ + virtio_init(); + + return 0; +} diff --git a/configs/qemu-xtensa-dc233c_defconfig b/configs/qemu-xtensa-dc233c_defconfig new file mode 100644 index 000000000000..e6f40b37ed8e --- /dev/null +++ b/configs/qemu-xtensa-dc233c_defconfig @@ -0,0 +1,32 @@ +CONFIG_XTENSA=y +CONFIG_SYS_CPU="dc233c" +CONFIG_SYS_MALLOC_LEN=0x40000 +CONFIG_SYS_MALLOC_F_LEN=0x400 +CONFIG_ENV_SIZE=0x20000 +CONFIG_DEFAULT_DEVICE_TREE="virt" +CONFIG_SYS_MONITOR_LEN=262144 +CONFIG_SYS_LOAD_ADDR=0x02000000 +CONFIG_TARGET_QEMU_XTENSA=y +CONFIG_REMAKE_ELF=y +CONFIG_SYS_MONITOR_BASE=0xF6000000 +CONFIG_DYNAMIC_SYS_CLK_FREQ=y +CONFIG_SHOW_BOOT_PROGRESS=y +CONFIG_BOOTDELAY=10 +CONFIG_AUTOBOOT_KEYED=y +CONFIG_AUTOBOOT_PROMPT="Autobooting in %d seconds, press <SPACE> to stop\n" +CONFIG_AUTOBOOT_STOP_STR=" " +CONFIG_SYS_PBSIZE=1049 +CONFIG_SYS_MALLOC_BOOTPARAMS=y +CONFIG_HUSH_PARSER=y +CONFIG_SYS_PROMPT="U-Boot> " +CONFIG_CMD_ASKENV=y +CONFIG_CRC32_VERIFY=y +CONFIG_CMD_MX_CYCLIC=y +CONFIG_CMD_SAVES=y +CONFIG_CMD_DHCP=y +CONFIG_CMD_PING=y +CONFIG_CMD_DIAG=y +CONFIG_USE_BOOTFILE=y +CONFIG_BOOTFILE="uImage" +CONFIG_VERSION_VARIABLE=y +CONFIG_SYSRESET=y diff --git a/include/configs/qemu-xtensa.h b/include/configs/qemu-xtensa.h new file mode 100644 index 000000000000..505aa0646bc9 --- /dev/null +++ b/include/configs/qemu-xtensa.h @@ -0,0 +1,36 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2007-2013 Tensilica, Inc. + * Copyright (C) 2014 - 2016 Cadence Design Systems Inc. + * Copyright (C) 2024 Jiaxun Yang jiaxun.yang@flygoat.com + */ + +#ifndef __CONFIG_H +#define __CONFIG_H + +#include <asm/arch/core.h> +#include <asm/addrspace.h> +#include <asm/config.h> + +#if XCHAL_HAVE_PTP_MMU +#define CFG_SYS_MEMORY_BASE \ + (XCHAL_VECBASE_RESET_VADDR - XCHAL_VECBASE_RESET_PADDR) +#define CFG_SYS_IO_BASE 0xf0000000 +#define CFG_SYS_SDRAM_SIZE 0x80000000 /* xtensa.sysram0 */ +#else +#define CFG_SYS_MEMORY_BASE 0x60000000 +#define CFG_SYS_SDRAM_SIZE 0x08000000 /* xtensa.sysram0 */ +#endif + +#define CFG_SYS_SDRAM_BASE MEMADDR(0x00000000) + +#if defined(CFG_MAX_MEM_MAPPED) && \ + CFG_MAX_MEM_MAPPED < CFG_SYS_SDRAM_SIZE +#define XTENSA_SYS_TEXT_ADDR \ + (MEMADDR(CFG_MAX_MEM_MAPPED) - CONFIG_SYS_MONITOR_LEN) +#else +#define XTENSA_SYS_TEXT_ADDR \ + (MEMADDR(CFG_SYS_SDRAM_SIZE) - CONFIG_SYS_MONITOR_LEN) +#endif + +#endif /* __CONFIG_H */