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[109.252.11.244]) by smtp.gmail.com with ESMTPSA id l7-20020ac25547000000b00512f2a11d70sm910220lfk.283.2024.02.26.10.36.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 26 Feb 2024 10:36:09 -0800 (PST) From: Maxim Moskalets X-Google-Original-From: Maxim Moskalets To: u-boot@lists.denx.de Cc: Maxim Moskalets , Maxim Moskalets , Tom Rini Subject: [PATCH v4] cmd: add FDT setup for bootelf by flag Date: Mon, 26 Feb 2024 21:35:53 +0300 Message-Id: <20240226183553.11615-1-Maxim.Moskalets@kaspersky.com> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean From: Maxim Moskalets Added the ability to use FDT for ELF applications, required to run some OS. To make FDT setup, you need to set the -d fdt_addr_r cmd option for bootelf command. Signed-off-by: Maxim Moskalets Cc: Tom Rini --- cmd/elf.c | 27 ++++++++++++++++++++++++--- 1 file changed, 24 insertions(+), 3 deletions(-) diff --git a/cmd/elf.c b/cmd/elf.c index b7b9f506a5..2fa28448c0 100644 --- a/cmd/elf.c +++ b/cmd/elf.c @@ -38,6 +38,8 @@ static unsigned long do_bootelf_exec(ulong (*entry)(int, char * const[]), /* Interpreter command to boot an arbitrary ELF image from memory */ int do_bootelf(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { + struct bootm_headers img = {0}; + unsigned long fdt_addr = 0; /* Address of the FDT */ unsigned long addr; /* Address of the ELF image */ unsigned long rc; /* Return value from user code */ char *sload = NULL; @@ -46,13 +48,23 @@ int do_bootelf(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) /* Consume 'bootelf' */ argc--; argv++; - /* Check for flag. */ + /* Check for [-p|-s] flag. */ if (argc >= 1 && (argv[0][0] == '-' && \ (argv[0][1] == 'p' || argv[0][1] == 's'))) { sload = argv[0]; /* Consume flag. */ argc--; argv++; } + + /* Check for [-d fdt_addr_r] option. */ + if ((argc >= 2) && (argv[0][0] == '-') && (argv[0][1] == 'd')) { + if (strict_strtoul(argv[1], 16, &fdt_addr) != 0) + return CMD_RET_USAGE; + /* Consume option. */ + argc -= 2; + argv += 2; + } + /* Check for address. */ if (argc >= 1 && strict_strtoul(argv[0], 16, &addr) != -EINVAL) { /* Consume address */ @@ -68,6 +80,14 @@ int do_bootelf(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) else addr = load_elf_image_shdr(addr); + if (fdt_addr) { + printf("## Setting up FDT at 0x%08lx ...\n", fdt_addr); + flush(); + + if (image_setup_libfdt(&img, (void *)fdt_addr, NULL)) + return 1; + } + if (!env_get_autostart()) return rcode; @@ -298,9 +318,10 @@ int do_bootvx(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) U_BOOT_CMD( bootelf, CONFIG_SYS_MAXARGS, 0, do_bootelf, "Boot from an ELF image in memory", - "[-p|-s] [address]\n" + "[-p|-s] [-d fdt_addr_r] [address]\n" "\t- load ELF image at [address] via program headers (-p)\n" - "\t or via section headers (-s)" + "\t or via section headers (-s)\n" + "\t- setup FDT image at [fdt_addr_r] (-d)" ); U_BOOT_CMD(