Add cmd_spl command
This adds a spl command to the u-boot.
Related config:
CONFIG_CMD_SPL
activate/deactivate the command
CONFIG_CMD_SPL_NAND_OFS
Offset in NAND to use
Signed-off-by: Simon Schwarz <simonschwarzcor@gmail.com>
Signed-off-by: Stefano Babic <sbabic@denx.de>
CC: Tom Rini <tom.rini@gmail.com>
CC: Wolfgang Denk <wd@denx.de>
diff --git a/common/cmd_spl.c b/common/cmd_spl.c
new file mode 100644
index 0000000..9ec054a
--- /dev/null
+++ b/common/cmd_spl.c
@@ -0,0 +1,188 @@
+/*
+ * Copyright (C) 2011
+ * Corscience GmbH & Co. KG - Simon Schwarz <schwarz@corscience.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <command.h>
+#include <cmd_spl.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static const char **subcmd_list[] = {
+
+ [SPL_EXPORT_FDT] = (const char * []) {
+#ifdef CONFIG_OF_LIBFDT
+ "start",
+ "loados",
+ #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
+ "ramdisk",
+ #endif
+ "fdt",
+ "cmdline",
+ "bdt",
+ "prep",
+#endif
+ NULL,
+ },
+ [SPL_EXPORT_ATAGS] = (const char * []) {
+#if defined(CONFIG_SETUP_MEMORY_TAGS) || \
+ defined(CONFIG_CMDLINE_TAG) || \
+ defined(CONFIG_INITRD_TAG) || \
+ defined(CONFIG_SERIAL_TAG) || \
+ defined(CONFIG_REVISION_TAG)
+ "start",
+ "loados",
+#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
+ "ramdisk",
+#endif
+ "cmdline",
+ "bdt",
+ "prep",
+#endif
+ NULL,
+ },
+ NULL
+};
+
+/* Calls bootm with the parameters given */
+static int call_bootm(int argc, char * const argv[], const char *subcommand[])
+{
+ char *bootm_argv[5];
+
+ int i = 0;
+ int ret = 0;
+ int j;
+
+ /* create paramter array */
+ bootm_argv[0] = "do_bootm";
+ switch (argc) {
+ case 3:
+ bootm_argv[4] = argv[2]; /* fdt addr */
+ case 2:
+ bootm_argv[3] = argv[1]; /* initrd addr */
+ case 1:
+ bootm_argv[2] = argv[0]; /* kernel addr */
+ }
+
+
+ /*
+ * - do the work -
+ * exec subcommands of do_bootm to init the images
+ * data structure
+ */
+ while (subcommand[i] != NULL) {
+ bootm_argv[1] = (char *)subcommand[i];
+ debug("args %d: %s %s ", argc, bootm_argv[0], bootm_argv[1]);
+ for (j = 0; j < argc; j++)
+ debug("%s ", bootm_argv[j + 2]);
+ debug("\n");
+
+ ret = do_bootm(find_cmd("do_bootm"), 0, argc+2,
+ bootm_argv);
+ debug("Subcommand retcode: %d\n", ret);
+ i++;
+ }
+
+ if (ret) {
+ printf("ERROR prep subcommand failed!\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+static cmd_tbl_t cmd_spl_export_sub[] = {
+ U_BOOT_CMD_MKENT(fdt, 0, 1, (void *)SPL_EXPORT_FDT, "", ""),
+ U_BOOT_CMD_MKENT(atags, 0, 1, (void *)SPL_EXPORT_ATAGS, "", ""),
+};
+
+static int spl_export(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ const cmd_tbl_t *c;
+
+ if (argc < 2) /* no subcommand */
+ return cmd_usage(cmdtp);
+
+ c = find_cmd_tbl(argv[1], &cmd_spl_export_sub[0],
+ ARRAY_SIZE(cmd_spl_export_sub));
+ if ((c) && ((int)c->cmd <= SPL_EXPORT_LAST)) {
+ argc -= 2;
+ argv += 2;
+ if (call_bootm(argc, argv, subcmd_list[(int)c->cmd]))
+ return -1;
+ switch ((int)c->cmd) {
+ case SPL_EXPORT_FDT:
+ printf("Argument image is now in RAM: 0x%p\n",
+ (void *)images.ft_addr);
+ break;
+ case SPL_EXPORT_ATAGS:
+ printf("Argument image is now in RAM at: 0x%p\n",
+ (void *)gd->bd->bi_boot_params);
+ break;
+ }
+ } else {
+ /* Unrecognized command */
+ return cmd_usage(cmdtp);
+ }
+
+ return 0;
+}
+
+static cmd_tbl_t cmd_spl_sub[] = {
+ U_BOOT_CMD_MKENT(export, 0, 1, (void *)SPL_EXPORT, "", ""),
+};
+
+static int do_spl(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ const cmd_tbl_t *c;
+ int cmd;
+
+ if (argc < 2) /* no subcommand */
+ return cmd_usage(cmdtp);
+
+ c = find_cmd_tbl(argv[1], &cmd_spl_sub[0], ARRAY_SIZE(cmd_spl_sub));
+ if (c) {
+ cmd = (int)c->cmd;
+ switch (cmd) {
+ case SPL_EXPORT:
+ argc--;
+ argv++;
+ if (spl_export(cmdtp, flag, argc, argv))
+ printf("Subcommand failed\n");
+ break;
+ default:
+ /* unrecognized command */
+ return cmd_usage(cmdtp);
+ }
+ } else {
+ /* Unrecognized command */
+ return cmd_usage(cmdtp);
+ }
+ return 0;
+}
+
+U_BOOT_CMD(
+ spl, 6 , 1, do_spl, "SPL configuration",
+ "export <img=atags|fdt> [kernel_addr] [initrd_addr] "
+ "[fdt_addr if <img> = fdt] - export a kernel parameter image\n"
+ "\t initrd_img can be set to \"-\" if fdt_addr without initrd img is"
+ "used");