Add two new configurations (qemu-riscv{32,64}_spl_defconfig) with SPL enabled for RISC-V QEMU. QEMU does not require SPL to run U-Boot. The configurations are meant to help the development of SPL on RISC-V.
The configurations enable RAM as the only SPL boot device. Images must be loaded at address 0x80200000. In the default boot flow, U-Boot SPL starts in machine mode, loads the OpenSBI FW_DYNAMIC firmware and U-Boot proper from the supplied FIT image, and starts OpenSBI. U-Boot proper is then started in supervisor mode by OpenSBI.
Signed-off-by: Lukas Auer lukas.auer@aisec.fraunhofer.de ---
board/emulation/qemu-riscv/Kconfig | 10 ++++++++++ board/emulation/qemu-riscv/MAINTAINERS | 2 ++ board/emulation/qemu-riscv/qemu-riscv.c | 17 +++++++++++++++++ configs/qemu-riscv32_spl_defconfig | 11 +++++++++++ configs/qemu-riscv64_spl_defconfig | 12 ++++++++++++ include/configs/qemu-riscv.h | 14 ++++++++++++++ 6 files changed, 66 insertions(+) create mode 100644 configs/qemu-riscv32_spl_defconfig create mode 100644 configs/qemu-riscv64_spl_defconfig
diff --git a/board/emulation/qemu-riscv/Kconfig b/board/emulation/qemu-riscv/Kconfig index 6cc7c31dc6..1928d6dda0 100644 --- a/board/emulation/qemu-riscv/Kconfig +++ b/board/emulation/qemu-riscv/Kconfig @@ -13,13 +13,21 @@ config SYS_CONFIG_NAME default "qemu-riscv"
config SYS_TEXT_BASE + default 0x81200000 if SPL default 0x80000000 if !RISCV_SMODE default 0x80200000 if RISCV_SMODE && ARCH_RV64I default 0x80400000 if RISCV_SMODE && ARCH_RV32I
+config SPL_TEXT_BASE + default 0x80000000 + +config SPL_OPENSBI_LOAD_ADDR + default 0x81000000 + config BOARD_SPECIFIC_OPTIONS # dummy def_bool y select GENERIC_RISCV + select SUPPORT_SPL imply SYS_NS16550 imply VIRTIO_MMIO imply VIRTIO_NET @@ -43,5 +51,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy imply CMD_PCI imply E1000 imply NVME + imply SPL_RAM_SUPPORT + imply SPL_RAM_DEVICE
endif diff --git a/board/emulation/qemu-riscv/MAINTAINERS b/board/emulation/qemu-riscv/MAINTAINERS index c701c83d77..78969ed6bd 100644 --- a/board/emulation/qemu-riscv/MAINTAINERS +++ b/board/emulation/qemu-riscv/MAINTAINERS @@ -5,5 +5,7 @@ F: board/emulation/qemu-riscv/ F: include/configs/qemu-riscv.h F: configs/qemu-riscv32_defconfig F: configs/qemu-riscv32_smode_defconfig +F: configs/qemu-riscv32_spl_defconfig F: configs/qemu-riscv64_defconfig F: configs/qemu-riscv64_smode_defconfig +F: configs/qemu-riscv64_spl_defconfig diff --git a/board/emulation/qemu-riscv/qemu-riscv.c b/board/emulation/qemu-riscv/qemu-riscv.c index d6167aaef1..e04bd3001c 100644 --- a/board/emulation/qemu-riscv/qemu-riscv.c +++ b/board/emulation/qemu-riscv/qemu-riscv.c @@ -6,6 +6,7 @@ #include <common.h> #include <dm.h> #include <fdtdec.h> +#include <spl.h> #include <virtio_types.h> #include <virtio.h>
@@ -87,3 +88,19 @@ int ft_board_setup(void *blob, bd_t *bd)
return 0; } + +#ifdef CONFIG_SPL +u32 spl_boot_device(void) +{ + /* RISC-V QEMU only supports RAM as SPL boot device */ + return BOOT_DEVICE_RAM; +} +#endif + +#ifdef CONFIG_SPL_LOAD_FIT +int board_fit_config_name_match(const char *name) +{ + /* boot using first FIT config */ + return 0; +} +#endif diff --git a/configs/qemu-riscv32_spl_defconfig b/configs/qemu-riscv32_spl_defconfig new file mode 100644 index 0000000000..78e755b36a --- /dev/null +++ b/configs/qemu-riscv32_spl_defconfig @@ -0,0 +1,11 @@ +CONFIG_RISCV=y +CONFIG_NR_DRAM_BANKS=1 +CONFIG_SPL=y +CONFIG_TARGET_QEMU_VIRT=y +CONFIG_RISCV_SMODE=y +CONFIG_DISTRO_DEFAULTS=y +CONFIG_FIT=y +CONFIG_DISPLAY_CPUINFO=y +CONFIG_DISPLAY_BOARDINFO=y +# CONFIG_CMD_MII is not set +CONFIG_OF_PRIOR_STAGE=y diff --git a/configs/qemu-riscv64_spl_defconfig b/configs/qemu-riscv64_spl_defconfig new file mode 100644 index 0000000000..a3f5e29d58 --- /dev/null +++ b/configs/qemu-riscv64_spl_defconfig @@ -0,0 +1,12 @@ +CONFIG_RISCV=y +CONFIG_NR_DRAM_BANKS=1 +CONFIG_SPL=y +CONFIG_TARGET_QEMU_VIRT=y +CONFIG_ARCH_RV64I=y +CONFIG_RISCV_SMODE=y +CONFIG_DISTRO_DEFAULTS=y +CONFIG_FIT=y +CONFIG_DISPLAY_CPUINFO=y +CONFIG_DISPLAY_BOARDINFO=y +# CONFIG_CMD_MII is not set +CONFIG_OF_PRIOR_STAGE=y diff --git a/include/configs/qemu-riscv.h b/include/configs/qemu-riscv.h index df22f780b0..69aa82d36a 100644 --- a/include/configs/qemu-riscv.h +++ b/include/configs/qemu-riscv.h @@ -8,6 +8,18 @@
#include <linux/sizes.h>
+#ifdef CONFIG_SPL + +#define CONFIG_SPL_MAX_SIZE 0x00100000 +#define CONFIG_SPL_BSS_START_ADDR 0x84000000 +#define CONFIG_SPL_BSS_MAX_SIZE 0x00100000 +#define CONFIG_SYS_SPL_MALLOC_START 0x84100000 +#define CONFIG_SYS_SPL_MALLOC_SIZE 0x00100000 + +#define CONFIG_SPL_LOAD_FIT_ADDRESS 0x80200000 + +#endif + #define CONFIG_SYS_SDRAM_BASE 0x80000000 #define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + SZ_2M)
@@ -22,6 +34,7 @@ /* Environment options */ #define CONFIG_ENV_SIZE SZ_128K
+#ifndef CONFIG_SPL_BUILD #define BOOT_TARGET_DEVICES(func) \ func(QEMU, qemu, na) \ func(VIRTIO, virtio, 0) \ @@ -51,5 +64,6 @@ #define CONFIG_PREBOOT \ "setenv fdt_addr ${fdtcontroladdr};" \ "fdt addr ${fdtcontroladdr};" +#endif
#endif /* __CONFIG_H */