diff options
Diffstat (limited to 'arch/riscv/lib')
| -rw-r--r-- | arch/riscv/lib/Makefile | 8 | ||||
| -rwxr-xr-x | arch/riscv/lib/mkimage_fit_opensbi.sh | 100 | ||||
| -rw-r--r-- | arch/riscv/lib/spl.c | 48 |
3 files changed, 154 insertions, 2 deletions
diff --git a/arch/riscv/lib/Makefile b/arch/riscv/lib/Makefile index 6ae6ebbeaf..c9179a5ff8 100644 --- a/arch/riscv/lib/Makefile +++ b/arch/riscv/lib/Makefile @@ -10,15 +10,19 @@ obj-$(CONFIG_CMD_BOOTM) += bootm.o obj-$(CONFIG_CMD_BOOTI) += bootm.o image.o obj-$(CONFIG_CMD_GO) += boot.o obj-y += cache.o -obj-$(CONFIG_RISCV_RDTIME) += rdtime.o +ifeq ($(CONFIG_$(SPL_)RISCV_MMODE),y) obj-$(CONFIG_SIFIVE_CLINT) += sifive_clint.o obj-$(CONFIG_ANDES_PLIC) += andes_plic.o obj-$(CONFIG_ANDES_PLMT) += andes_plmt.o +else +obj-$(CONFIG_RISCV_RDTIME) += rdtime.o +obj-$(CONFIG_SBI_IPI) += sbi_ipi.o +endif obj-y += interrupts.o obj-y += reset.o -obj-$(CONFIG_SBI_IPI) += sbi_ipi.o obj-y += setjmp.o obj-$(CONFIG_SMP) += smp.o +obj-$(CONFIG_SPL_BUILD) += spl.o # For building EFI apps CFLAGS_$(EFI_CRT0) := $(CFLAGS_EFI) diff --git a/arch/riscv/lib/mkimage_fit_opensbi.sh b/arch/riscv/lib/mkimage_fit_opensbi.sh new file mode 100755 index 0000000000..d6f95e5bfd --- /dev/null +++ b/arch/riscv/lib/mkimage_fit_opensbi.sh @@ -0,0 +1,100 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0+ +# +# script to generate FIT image source for RISC-V boards with OpenSBI +# and, optionally, multiple device trees (given on the command line). +# +# usage: $0 [<dt_name> [<dt_name] ...] + +[ -z "$OPENSBI" ] && OPENSBI="fw_dynamic.bin" + +if [ -z "$UBOOT_LOAD_ADDR" ]; then + UBOOT_LOAD_ADDR="$(grep "^CONFIG_SYS_TEXT_BASE=" .config | awk 'BEGIN{FS="="} {print $2}')" +fi + +if [ -z "$OPENSBI_LOAD_ADDR" ]; then + OPENSBI_LOAD_ADDR="$(grep "^CONFIG_SPL_OPENSBI_LOAD_ADDR=" .config | awk 'BEGIN{FS="="} {print $2}')" +fi + +if [ ! -f $OPENSBI ]; then + echo "WARNING: OpenSBI binary \"$OPENSBI\" not found, resulting binary is not functional." >&2 + OPENSBI=/dev/null +fi + +cat << __HEADER_EOF +/dts-v1/; + +/ { + description = "Configuration to load OpenSBI before U-Boot"; + + images { + uboot { + description = "U-Boot"; + data = /incbin/("u-boot-nodtb.bin"); + type = "standalone"; + os = "U-Boot"; + arch = "riscv"; + compression = "none"; + load = <$UBOOT_LOAD_ADDR>; + }; + opensbi { + description = "RISC-V OpenSBI"; + data = /incbin/("$OPENSBI"); + type = "firmware"; + os = "opensbi"; + arch = "riscv"; + compression = "none"; + load = <$OPENSBI_LOAD_ADDR>; + entry = <$OPENSBI_LOAD_ADDR>; + }; +__HEADER_EOF + +cnt=1 +for dtname in $* +do + cat << __FDT_IMAGE_EOF + fdt_$cnt { + description = "$(basename $dtname .dtb)"; + data = /incbin/("$dtname"); + type = "flat_dt"; + compression = "none"; + }; +__FDT_IMAGE_EOF +cnt=$((cnt+1)) +done + +cat << __CONF_HEADER_EOF + }; + configurations { + default = "config_1"; + +__CONF_HEADER_EOF + +if [ $# -eq 0 ]; then +cat << __CONF_SECTION_EOF + config_1 { + description = "U-Boot FIT"; + firmware = "opensbi"; + loadables = "uboot"; + }; +__CONF_SECTION_EOF +else +cnt=1 +for dtname in $* +do +cat << __CONF_SECTION_EOF + config_$cnt { + description = "$(basename $dtname .dtb)"; + firmware = "opensbi"; + loadables = "uboot"; + fdt = "fdt_$cnt"; + }; +__CONF_SECTION_EOF +cnt=$((cnt+1)) +done +fi + +cat << __ITS_EOF + }; +}; +__ITS_EOF diff --git a/arch/riscv/lib/spl.c b/arch/riscv/lib/spl.c new file mode 100644 index 0000000000..bea8695987 --- /dev/null +++ b/arch/riscv/lib/spl.c @@ -0,0 +1,48 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2019 Fraunhofer AISEC, + * Lukas Auer <lukas.auer@aisec.fraunhofer.de> + */ +#include <common.h> +#include <spl.h> +#include <asm/smp.h> + +DECLARE_GLOBAL_DATA_PTR; + +__weak void board_init_f(ulong dummy) +{ + int ret; + + ret = spl_early_init(); + if (ret) + panic("spl_early_init() failed: %d\n", ret); + + arch_cpu_init_dm(); + + preloader_console_init(); +} + +void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image) +{ + typedef void __noreturn (*image_entry_riscv_t)(ulong hart, void *dtb); + void *fdt_blob; + int ret; + +#if CONFIG_IS_ENABLED(LOAD_FIT) || CONFIG_IS_ENABLED(LOAD_FIT_FULL) + fdt_blob = spl_image->fdt_addr; +#else + fdt_blob = (void *)gd->fdt_blob; +#endif + + image_entry_riscv_t image_entry = + (image_entry_riscv_t)spl_image->entry_point; + invalidate_icache_all(); + + debug("image entry point: 0x%lX\n", spl_image->entry_point); +#ifdef CONFIG_SMP + ret = smp_call_function(spl_image->entry_point, (ulong)fdt_blob, 0); + if (ret) + hang(); +#endif + image_entry(gd->arch.boot_hart, fdt_blob); +} |