OF_HOSTFILE is used on sandbox configs only. Although it's pretty unique and not causing any confusions, we are better of having simpler config options for the DTB.
So let's replace that with the existing OF_BOARD. U-Boot would then have only three config options for the DTB origin. - OF_SEPARATE, build separately from U-Boot - OF_BOARD, board specific way of providing the DTB - OF_EMBED embedded in the u-boot binary(should not be used in production
Signed-off-by: Ilias Apalodimas ilias.apalodimas@linaro.org Reviewed-by: Simon Glass sjg@chromium.org --- Note that this must be applied on top of https://lore.kernel.org/u-boot/20211011210016.135929-1-ilias.apalodimas@lina... changes since v4: - Fixed AndesTech compilation - rebased on top of master changes since v3: - fix xilinx platforms based on xilinx_zynq_virt_defconfig changes since v2: - Rebased on top of the updated OF_BOARD patchset Changes since v1: - Added internal error value on board_fdt_blob_setup(). Arguably we can just check against NULL and simplify this even more if we don't care about the errno - OF_BOARD is now default for sandbox builds Makefile | 6 ++--- arch/arm/mach-stm32mp/boot_params.c | 3 ++- arch/sandbox/cpu/cpu.c | 27 +++++++++++++-------- arch/sandbox/include/asm/u-boot-sandbox.h | 8 ------ board/AndesTech/ax25-ae350/ax25-ae350.c | 4 ++- board/Marvell/octeontx/board-fdt.c | 3 ++- board/Marvell/octeontx2/board-fdt.c | 3 ++- board/Marvell/octeontx2/board.c | 3 ++- board/armltd/vexpress64/vexpress64.c | 7 ++++-- board/broadcom/bcmstb/bcmstb.c | 3 ++- board/emulation/qemu-arm/qemu-arm.c | 3 ++- board/emulation/qemu-ppce500/qemu-ppce500.c | 3 ++- board/emulation/qemu-riscv/qemu-riscv.c | 3 ++- board/highbank/highbank.c | 3 ++- board/raspberrypi/rpi/rpi.c | 8 ++++-- board/sifive/unleashed/unleashed.c | 3 ++- board/sifive/unmatched/unmatched.c | 3 ++- board/socrates/socrates.c | 4 ++- board/xen/xenguest_arm64/xenguest_arm64.c | 7 ++++-- board/xilinx/common/board.c | 3 ++- configs/sandbox64_defconfig | 1 - configs/sandbox_defconfig | 1 - configs/sandbox_flattree_defconfig | 1 - configs/sandbox_noinst_defconfig | 1 - configs/sandbox_spl_defconfig | 1 - configs/tools-only_defconfig | 1 - doc/develop/devicetree/control.rst | 7 +++--- dts/Kconfig | 10 +------- include/fdtdec.h | 4 ++- lib/fdtdec.c | 14 +++++------ scripts/Makefile.spl | 2 +- 31 files changed, 81 insertions(+), 69 deletions(-)
diff --git a/Makefile b/Makefile index 5194e4dc7829..c0ea933cb636 100644 --- a/Makefile +++ b/Makefile @@ -947,7 +947,7 @@ INPUTS-$(CONFIG_BINMAN_STANDALONE_FDT) += u-boot.dtb ifeq ($(CONFIG_SPL_FRAMEWORK),y) INPUTS-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img endif -INPUTS-$(CONFIG_OF_HOSTFILE) += u-boot.dtb +INPUTS-$(CONFIG_SANDBOX) += u-boot.dtb ifneq ($(CONFIG_SPL_TARGET),) INPUTS-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) endif @@ -1407,7 +1407,7 @@ u-boot-lzma.img: u-boot.bin.lzma FORCE
u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \ $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin \ - $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_OF_HOSTFILE)$(CONFIG_BINMAN_STANDALONE_FDT),dts/dt.dtb) \ + $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SANDBOX)$(CONFIG_BINMAN_STANDALONE_FDT),dts/dt.dtb) \ ,$(UBOOT_BIN)) FORCE $(call if_changed,mkimage) $(BOARD_SIZE_CHECK) @@ -1421,7 +1421,7 @@ MKIMAGEFLAGS_u-boot.itb += -B 0x8
ifdef U_BOOT_ITS u-boot.itb: u-boot-nodtb.bin \ - $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_OF_HOSTFILE),dts/dt.dtb) \ + $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SANDBOX),dts/dt.dtb) \ $(U_BOOT_ITS) FORCE $(call if_changed,mkfitimage) $(BOARD_SIZE_CHECK) diff --git a/arch/arm/mach-stm32mp/boot_params.c b/arch/arm/mach-stm32mp/boot_params.c index 84647e70398b..e91ef1b2fc70 100644 --- a/arch/arm/mach-stm32mp/boot_params.c +++ b/arch/arm/mach-stm32mp/boot_params.c @@ -33,10 +33,11 @@ void save_boot_params(unsigned long r0, unsigned long r1, unsigned long r2, * Use the saved FDT address provided by TF-A at boot time (NT_FW_CONFIG = * Non Trusted Firmware configuration file) when the pointer is valid */ -void *board_fdt_blob_setup(void) +void *board_fdt_blob_setup(int *err) { log_debug("%s: nt_fw_dtb=%lx\n", __func__, nt_fw_dtb);
+ *err = 0; /* use external device tree only if address is valid */ if (nt_fw_dtb >= STM32_DDR_BASE) { if (fdt_magic(nt_fw_dtb) == FDT_MAGIC) diff --git a/arch/sandbox/cpu/cpu.c b/arch/sandbox/cpu/cpu.c index 48636ab63919..9887d09272a3 100644 --- a/arch/sandbox/cpu/cpu.c +++ b/arch/sandbox/cpu/cpu.c @@ -291,44 +291,51 @@ void invalidate_dcache_range(unsigned long start, unsigned long stop) { }
-int sandbox_read_fdt_from_file(void) +void *board_fdt_blob_setup(int *ret) { struct sandbox_state *state = state_get_current(); const char *fname = state->fdt_fname; - void *blob; + void *blob = NULL; loff_t size; int err; int fd;
blob = map_sysmem(CONFIG_SYS_FDT_LOAD_ADDR, 0); + *ret = 0; if (!state->fdt_fname) { err = fdt_create_empty_tree(blob, 256); if (!err) goto done; printf("Unable to create empty FDT: %s\n", fdt_strerror(err)); - return -EINVAL; + *ret = -EINVAL; + goto fail; }
err = os_get_filesize(fname, &size); if (err < 0) { - printf("Failed to file FDT file '%s'\n", fname); - return err; + printf("Failed to find FDT file '%s'\n", fname); + *ret = err; + goto fail; } fd = os_open(fname, OS_O_RDONLY); if (fd < 0) { printf("Failed to open FDT file '%s'\n", fname); - return -EACCES; + *ret = -EACCES; + goto fail; } + if (os_read(fd, blob, size) != size) { os_close(fd); - return -EIO; + printf("Failed to read FDT file '%s'\n", fname); + *ret = -EIO; + goto fail; } os_close(fd);
done: - gd->fdt_blob = blob; - - return 0; + return blob; +fail: + return NULL; }
ulong timer_get_boot_us(void) diff --git a/arch/sandbox/include/asm/u-boot-sandbox.h b/arch/sandbox/include/asm/u-boot-sandbox.h index 73b1897191d5..56dc13c3eb11 100644 --- a/arch/sandbox/include/asm/u-boot-sandbox.h +++ b/arch/sandbox/include/asm/u-boot-sandbox.h @@ -76,14 +76,6 @@ int pci_unmap_physmem(const void *addr, unsigned long len, */ void sandbox_set_enable_pci_map(int enable);
-/** - * sandbox_read_fdt_from_file() - Read a device tree from a file - * - * Read a device tree file from a host file and set it up for use as the - * control FDT. - */ -int sandbox_read_fdt_from_file(void); - /** * sandbox_reset() - reset sandbox * diff --git a/board/AndesTech/ax25-ae350/ax25-ae350.c b/board/AndesTech/ax25-ae350/ax25-ae350.c index b28894ed4655..5fb32fd0fdbb 100644 --- a/board/AndesTech/ax25-ae350/ax25-ae350.c +++ b/board/AndesTech/ax25-ae350/ax25-ae350.c @@ -54,13 +54,15 @@ ulong board_flash_get_legacy(ulong base, int banknum, flash_info_t *info) return 0; }
-void *board_fdt_blob_setup(void) +void *board_fdt_blob_setup(int *err) { + *err = 0; #if CONFIG_IS_ENABLED(OF_BOARD) return (void *)(ulong)gd->arch.firmware_fdt_addr; #elif CONFIG_IS_ENABLED(OF_SEPARATE) return (void *)CONFIG_SYS_FDT_BASE; #else + *err = -EINVAL; return NULL; #endif } diff --git a/board/Marvell/octeontx/board-fdt.c b/board/Marvell/octeontx/board-fdt.c index 1db2a4a26750..e989c374f2b2 100644 --- a/board/Marvell/octeontx/board-fdt.c +++ b/board/Marvell/octeontx/board-fdt.c @@ -301,7 +301,8 @@ int ft_board_setup(void *blob, struct bd_info *bd) * * @return FDT base address received from ATF in x1 register */ -void *board_fdt_blob_setup(void) +void *board_fdt_blob_setup(int *err) { + *err = 0; return (void *)fdt_base_addr; } diff --git a/board/Marvell/octeontx2/board-fdt.c b/board/Marvell/octeontx2/board-fdt.c index a4771af4c1d8..e2cfe017e83c 100644 --- a/board/Marvell/octeontx2/board-fdt.c +++ b/board/Marvell/octeontx2/board-fdt.c @@ -215,7 +215,8 @@ int ft_board_setup(void *blob, struct bd_info *bd) * * @return FDT base address received from ATF in x1 register */ -void *board_fdt_blob_setup(void) +void *board_fdt_blob_setup(int *err) { + *err = 0; return (void *)fdt_base_addr; } diff --git a/board/Marvell/octeontx2/board.c b/board/Marvell/octeontx2/board.c index 4e8cb839f5ee..63aa2d613496 100644 --- a/board/Marvell/octeontx2/board.c +++ b/board/Marvell/octeontx2/board.c @@ -226,12 +226,13 @@ static int do_go_uboot(struct cmd_tbl *cmdtp, int flag, int argc, uboot_entry_t entry; ulong addr; void *fdt; + int err;
if (argc < 2) return CMD_RET_USAGE;
addr = hextoul(argv[1], NULL); - fdt = board_fdt_blob_setup(); + fdt = board_fdt_blob_setup(&err); entry = (uboot_entry_t)addr; flush_cache((ulong)addr, 1 << 20); /* 1MiB should be enough */ dcache_disable(); diff --git a/board/armltd/vexpress64/vexpress64.c b/board/armltd/vexpress64/vexpress64.c index 2e4260286b5a..d2f307cca5d2 100644 --- a/board/armltd/vexpress64/vexpress64.c +++ b/board/armltd/vexpress64/vexpress64.c @@ -131,12 +131,15 @@ static phys_addr_t find_dtb_in_nor_flash(const char *partname) return ~0; }
-void *board_fdt_blob_setup(void) +void *board_fdt_blob_setup(int *err) { phys_addr_t fdt_rom_addr = find_dtb_in_nor_flash(CONFIG_JUNO_DTB_PART);
- if (fdt_rom_addr == ~0UL) + *err = 0; + if (fdt_rom_addr == ~0UL) { + *err = -ENXIO; return NULL; + }
return (void *)fdt_rom_addr; } diff --git a/board/broadcom/bcmstb/bcmstb.c b/board/broadcom/bcmstb/bcmstb.c index 723ebda3bd21..07aeb0981c00 100644 --- a/board/broadcom/bcmstb/bcmstb.c +++ b/board/broadcom/bcmstb/bcmstb.c @@ -131,8 +131,9 @@ int board_late_init(void) return 0; }
-void *board_fdt_blob_setup(void) +void *board_fdt_blob_setup(int *err) { + *err = 0; /* Stored the DTB address there during our init */ return (void *)prior_stage_fdt_address; } diff --git a/board/emulation/qemu-arm/qemu-arm.c b/board/emulation/qemu-arm/qemu-arm.c index aa68bef469a6..16d5a97167a6 100644 --- a/board/emulation/qemu-arm/qemu-arm.c +++ b/board/emulation/qemu-arm/qemu-arm.c @@ -94,8 +94,9 @@ int dram_init_banksize(void) return 0; }
-void *board_fdt_blob_setup(void) +void *board_fdt_blob_setup(int *err) { + *err = 0; /* QEMU loads a generated DTB for us at the start of RAM. */ return (void *)CONFIG_SYS_SDRAM_BASE; } diff --git a/board/emulation/qemu-ppce500/qemu-ppce500.c b/board/emulation/qemu-ppce500/qemu-ppce500.c index 924cc02c4be8..7d8ba34b2588 100644 --- a/board/emulation/qemu-ppce500/qemu-ppce500.c +++ b/board/emulation/qemu-ppce500/qemu-ppce500.c @@ -333,8 +333,9 @@ u32 cpu_mask(void) * * @return virtual address of FDT received from QEMU in r3 register */ -void *board_fdt_blob_setup(void) +void *board_fdt_blob_setup(int *err) { + *err = 0; return get_fdt_virt(); }
diff --git a/board/emulation/qemu-riscv/qemu-riscv.c b/board/emulation/qemu-riscv/qemu-riscv.c index 2a26e265ffb9..b0d9dd59b12f 100644 --- a/board/emulation/qemu-riscv/qemu-riscv.c +++ b/board/emulation/qemu-riscv/qemu-riscv.c @@ -72,8 +72,9 @@ int board_fit_config_name_match(const char *name) } #endif
-void *board_fdt_blob_setup(void) +void *board_fdt_blob_setup(int *err) { + *err = 0; /* Stored the DTB address there during our init */ return (void *)(ulong)gd->arch.firmware_fdt_addr; } diff --git a/board/highbank/highbank.c b/board/highbank/highbank.c index ffb6fd922daf..b5fa5101e881 100644 --- a/board/highbank/highbank.c +++ b/board/highbank/highbank.c @@ -111,8 +111,9 @@ int ft_board_setup(void *fdt, struct bd_info *bd) } #endif
-void *board_fdt_blob_setup(void) +void *board_fdt_blob_setup(int *err) { + *err = 0; /* * The ECME management processor loads the DTB from NOR flash * into DRAM (at 4KB), where it gets patched to contain the diff --git a/board/raspberrypi/rpi/rpi.c b/board/raspberrypi/rpi/rpi.c index 0c7d58d18db2..55afaa54d9f3 100644 --- a/board/raspberrypi/rpi/rpi.c +++ b/board/raspberrypi/rpi/rpi.c @@ -488,10 +488,14 @@ int board_init(void) /* * If the firmware passed a device tree use it for U-Boot. */ -void *board_fdt_blob_setup(void) +void *board_fdt_blob_setup(int *err) { - if (fdt_magic(fw_dtb_pointer) != FDT_MAGIC) + *err = 0; + if (fdt_magic(fw_dtb_pointer) != FDT_MAGIC) { + *err = -ENXIO; return NULL; + } + return (void *)fw_dtb_pointer; }
diff --git a/board/sifive/unleashed/unleashed.c b/board/sifive/unleashed/unleashed.c index e7d2332d8c95..3c3e0e1d0d11 100644 --- a/board/sifive/unleashed/unleashed.c +++ b/board/sifive/unleashed/unleashed.c @@ -114,8 +114,9 @@ int misc_init_r(void)
#endif
-void *board_fdt_blob_setup(void) +void *board_fdt_blob_setup(int *err) { + *err = 0; if (IS_ENABLED(CONFIG_OF_SEPARATE)) { if (gd->arch.firmware_fdt_addr) return (ulong *)(uintptr_t)gd->arch.firmware_fdt_addr; diff --git a/board/sifive/unmatched/unmatched.c b/board/sifive/unmatched/unmatched.c index 93c452c57fca..4895909f8d6a 100644 --- a/board/sifive/unmatched/unmatched.c +++ b/board/sifive/unmatched/unmatched.c @@ -11,8 +11,9 @@ #include <dm.h> #include <asm/sections.h>
-void *board_fdt_blob_setup(void) +void *board_fdt_blob_setup(int *err) { + *err = 0; if (IS_ENABLED(CONFIG_OF_SEPARATE)) { if (gd->arch.firmware_fdt_addr) return (ulong *)(uintptr_t)gd->arch.firmware_fdt_addr; diff --git a/board/socrates/socrates.c b/board/socrates/socrates.c index 3ba2fbbd5604..a81cb7b2ba66 100644 --- a/board/socrates/socrates.c +++ b/board/socrates/socrates.c @@ -220,13 +220,15 @@ int ft_board_setup(void *blob, struct bd_info *bd) #endif /* CONFIG_OF_BOARD_SETUP */
#if defined(CONFIG_OF_SEPARATE) -void *board_fdt_blob_setup(void) +void *board_fdt_blob_setup(int *err) { void *fw_dtb;
+ *err = 0; fw_dtb = (void *)(CONFIG_SYS_TEXT_BASE - CONFIG_ENV_SECT_SIZE); if (fdt_magic(fw_dtb) != FDT_MAGIC) { printf("DTB is not passed via %x\n", (u32)fw_dtb); + *err = -ENXIO; return NULL; }
diff --git a/board/xen/xenguest_arm64/xenguest_arm64.c b/board/xen/xenguest_arm64/xenguest_arm64.c index da0ddeefff3d..6e10bba76b71 100644 --- a/board/xen/xenguest_arm64/xenguest_arm64.c +++ b/board/xen/xenguest_arm64/xenguest_arm64.c @@ -39,10 +39,13 @@ int board_init(void) * x0 is the physical address of the device tree blob (dtb) in system RAM. * This is stored in rom_pointer during low level init. */ -void *board_fdt_blob_setup(void) +void *board_fdt_blob_setup(int *err) { - if (fdt_magic(rom_pointer[0]) != FDT_MAGIC) + *err = 0; + if (fdt_magic(rom_pointer[0]) != FDT_MAGIC) { + *err = -ENXIO; return NULL; + } return (void *)rom_pointer[0]; }
diff --git a/board/xilinx/common/board.c b/board/xilinx/common/board.c index 9006bd3b4d2e..78a5d0efa862 100644 --- a/board/xilinx/common/board.c +++ b/board/xilinx/common/board.c @@ -320,10 +320,11 @@ __maybe_unused int xilinx_read_eeprom(void) }
#if defined(CONFIG_OF_BOARD) || defined(CONFIG_OF_SEPARATE) -void *board_fdt_blob_setup(void) +void *board_fdt_blob_setup(int *err) { void *fdt_blob;
+ *err = 0; if (!IS_ENABLED(CONFIG_SPL_BUILD) && !IS_ENABLED(CONFIG_VERSAL_NO_DDR) && !IS_ENABLED(CONFIG_ZYNQMP_NO_DDR)) { diff --git a/configs/sandbox64_defconfig b/configs/sandbox64_defconfig index df9633d762a2..838280e14726 100644 --- a/configs/sandbox64_defconfig +++ b/configs/sandbox64_defconfig @@ -88,7 +88,6 @@ CONFIG_MAC_PARTITION=y CONFIG_AMIGA_PARTITION=y CONFIG_OF_CONTROL=y CONFIG_OF_LIVE=y -CONFIG_OF_HOSTFILE=y CONFIG_ENV_IS_NOWHERE=y CONFIG_ENV_IS_IN_EXT4=y CONFIG_ENV_EXT4_INTERFACE="host" diff --git a/configs/sandbox_defconfig b/configs/sandbox_defconfig index 9a462cb57c4a..d07a7f302e6e 100644 --- a/configs/sandbox_defconfig +++ b/configs/sandbox_defconfig @@ -113,7 +113,6 @@ CONFIG_MAC_PARTITION=y CONFIG_AMIGA_PARTITION=y CONFIG_OF_CONTROL=y CONFIG_OF_LIVE=y -CONFIG_OF_HOSTFILE=y CONFIG_ENV_IS_NOWHERE=y CONFIG_ENV_IS_IN_EXT4=y CONFIG_ENV_EXT4_INTERFACE="host" diff --git a/configs/sandbox_flattree_defconfig b/configs/sandbox_flattree_defconfig index 11015744e7a4..5980c8610ea8 100644 --- a/configs/sandbox_flattree_defconfig +++ b/configs/sandbox_flattree_defconfig @@ -69,7 +69,6 @@ CONFIG_CMD_EXT4_WRITE=y CONFIG_MAC_PARTITION=y CONFIG_AMIGA_PARTITION=y CONFIG_OF_CONTROL=y -CONFIG_OF_HOSTFILE=y CONFIG_ENV_IS_NOWHERE=y CONFIG_ENV_IS_IN_EXT4=y CONFIG_ENV_EXT4_INTERFACE="host" diff --git a/configs/sandbox_noinst_defconfig b/configs/sandbox_noinst_defconfig index b3584563d245..238604f5cde1 100644 --- a/configs/sandbox_noinst_defconfig +++ b/configs/sandbox_noinst_defconfig @@ -88,7 +88,6 @@ CONFIG_MAC_PARTITION=y CONFIG_AMIGA_PARTITION=y CONFIG_OF_CONTROL=y CONFIG_SPL_OF_CONTROL=y -CONFIG_OF_HOSTFILE=y CONFIG_SPL_OF_PLATDATA=y CONFIG_ENV_IS_NOWHERE=y CONFIG_ENV_IS_IN_EXT4=y diff --git a/configs/sandbox_spl_defconfig b/configs/sandbox_spl_defconfig index 73cf5dd2b045..b9da8dc8e97d 100644 --- a/configs/sandbox_spl_defconfig +++ b/configs/sandbox_spl_defconfig @@ -89,7 +89,6 @@ CONFIG_MAC_PARTITION=y CONFIG_AMIGA_PARTITION=y CONFIG_OF_CONTROL=y CONFIG_SPL_OF_CONTROL=y -CONFIG_OF_HOSTFILE=y CONFIG_SPL_OF_PLATDATA=y CONFIG_SPL_OF_PLATDATA_INST=y CONFIG_ENV_IS_NOWHERE=y diff --git a/configs/tools-only_defconfig b/configs/tools-only_defconfig index d0e34cb7fa87..8f5d5c6df591 100644 --- a/configs/tools-only_defconfig +++ b/configs/tools-only_defconfig @@ -16,7 +16,6 @@ CONFIG_AVB_BUF_SIZE=0x8192 CONFIG_BOOTP_DNS2=y # CONFIG_CMD_DATE is not set CONFIG_OF_CONTROL=y -CONFIG_OF_HOSTFILE=y CONFIG_SYS_RELOC_GD_ENV_ADDR=y CONFIG_BOOTP_SEND_HOSTNAME=y CONFIG_IP_DEFRAG=y diff --git a/doc/develop/devicetree/control.rst b/doc/develop/devicetree/control.rst index e84dfb6677a6..0e6f85d5af11 100644 --- a/doc/develop/devicetree/control.rst +++ b/doc/develop/devicetree/control.rst @@ -108,10 +108,9 @@ If CONFIG_OF_BOARD is defined, a board-specific routine will provide the devicetree at runtime, for example if an earlier bootloader stage creates it and passes it to U-Boot.
-If CONFIG_OF_HOSTFILE is defined, then it will be read from a file on -startup. This is only useful for sandbox. Use the -d flag to U-Boot to -specify the file to read, -D for the default and -T for the test devicetree, -used to run sandbox unit tests. +If CONFIG_SANDBOX is defined, then it will be read from a file on +startup. Use the -d flag to U-Boot to specify the file to read, -D for the +default and -T for the test devicetree, used to run sandbox unit tests.
You cannot use more than one of these options at the same time.
diff --git a/dts/Kconfig b/dts/Kconfig index 90c7a1c5f49e..b7c4a2fec031 100644 --- a/dts/Kconfig +++ b/dts/Kconfig @@ -97,6 +97,7 @@ config OF_LIVE choice prompt "Provider of DTB for DT control" depends on OF_CONTROL + default OF_BOARD if SANDBOX
config OF_SEPARATE bool "Separate DTB for DT control" @@ -115,20 +116,11 @@ config OF_EMBED
config OF_BOARD bool "Provided by the board (e.g a previous loader) at runtime" - depends on !SANDBOX help If this option is enabled, the device tree will be provided by the board at runtime if the board supports it, instead of being bundled with the image.
-config OF_HOSTFILE - bool "Host filed DTB for DT control" - depends on SANDBOX - help - If this option is enabled, DTB will be read from a file on startup. - This is only useful for Sandbox. Use the -d flag to U-Boot to - specify the file to read. - endchoice
config DEFAULT_DEVICE_TREE diff --git a/include/fdtdec.h b/include/fdtdec.h index 239814228d73..6c7ab887b207 100644 --- a/include/fdtdec.h +++ b/include/fdtdec.h @@ -1158,8 +1158,10 @@ int fdtdec_resetup(int *rescan); * Board-specific FDT initialization. Returns the address to a device tree blob. * Called when CONFIG_OF_BOARD is defined, or if CONFIG_OF_SEPARATE is defined * and the board implements it. + * + * @err internal error code if we fail to setup a DTB */ -void *board_fdt_blob_setup(void); +void *board_fdt_blob_setup(int *err);
/* * Decode the size of memory diff --git a/lib/fdtdec.c b/lib/fdtdec.c index 959b337cdc82..7681f272d279 100644 --- a/lib/fdtdec.c +++ b/lib/fdtdec.c @@ -1213,9 +1213,11 @@ static int uncompress_blob(const void *src, ulong sz_src, void **dstp) * For CONFIG_OF_SEPARATE, the board may optionally implement this to * provide and/or fixup the fdt. */ -__weak void *board_fdt_blob_setup(void) +__weak void *board_fdt_blob_setup(int *err) { void *fdt_blob = NULL; + + *err = 0; #ifdef CONFIG_SPL_BUILD /* FDT is at end of BSS unless it is in a different memory region */ if (IS_ENABLED(CONFIG_SPL_SEPARATE_BSS)) @@ -1226,6 +1228,7 @@ __weak void *board_fdt_blob_setup(void) /* FDT is at end of image */ fdt_blob = (ulong *)&_end; #endif + return fdt_blob; } #endif @@ -1607,12 +1610,9 @@ int fdtdec_setup(void) # endif # elif defined(CONFIG_OF_BOARD) || defined(CONFIG_OF_SEPARATE) /* Allow the board to override the fdt address. */ - gd->fdt_blob = board_fdt_blob_setup(); -# elif defined(CONFIG_OF_HOSTFILE) - if (sandbox_read_fdt_from_file()) { - puts("Failed to read control FDT\n"); - return -1; - } + gd->fdt_blob = board_fdt_blob_setup(&ret); + if (ret) + return ret; # endif # ifndef CONFIG_SPL_BUILD /* Allow the early environment to override the fdt address */ diff --git a/scripts/Makefile.spl b/scripts/Makefile.spl index 6f26eb1fa1f4..1bb2844913f4 100644 --- a/scripts/Makefile.spl +++ b/scripts/Makefile.spl @@ -300,7 +300,7 @@ endif # - we have either OF_SEPARATE or OF_HOSTFILE build_dtb := ifneq ($(CONFIG_$(SPL_TPL_)OF_REAL),) -ifeq ($(CONFIG_OF_SEPARATE)$(CONFIG_OF_HOSTFILE),y) +ifeq ($(CONFIG_OF_SEPARATE)$(CONFIG_SANDBOX),y) build_dtb := y endif endif