bootstd: Add a bootdev command
Add a 'bootdev' command to handle listing and selection of bootdevs.
Disable standard boot for a few boards which otherwise run out of space.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/cmd/bootdev.c b/cmd/bootdev.c
new file mode 100644
index 0000000..ecd797c
--- /dev/null
+++ b/cmd/bootdev.c
@@ -0,0 +1,120 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * 'bootdev' command
+ *
+ * Copyright 2021 Google LLC
+ * Written by Simon Glass <sjg@chromium.org>
+ */
+
+#include <common.h>
+#include <bootdev.h>
+#include <bootflow.h>
+#include <bootstd.h>
+#include <command.h>
+#include <dm.h>
+#include <dm/device-internal.h>
+#include <dm/uclass-internal.h>
+
+static int bootdev_check_state(struct bootstd_priv **stdp)
+{
+ struct bootstd_priv *std;
+ int ret;
+
+ ret = bootstd_get_priv(&std);
+ if (ret)
+ return ret;
+ if (!std->cur_bootdev) {
+ printf("Please use 'bootdev select' first\n");
+ return -ENOENT;
+ }
+ *stdp = std;
+
+ return 0;
+}
+
+static int do_bootdev_list(struct cmd_tbl *cmdtp, int flag, int argc,
+ char *const argv[])
+{
+ bool probe;
+
+ probe = argc >= 2 && !strcmp(argv[1], "-p");
+ bootdev_list(probe);
+
+ return 0;
+}
+
+static int do_bootdev_select(struct cmd_tbl *cmdtp, int flag, int argc,
+ char *const argv[])
+{
+ struct bootstd_priv *std;
+ struct udevice *dev;
+ int ret;
+
+ ret = bootstd_get_priv(&std);
+ if (ret)
+ return CMD_RET_FAILURE;
+ if (argc < 2) {
+ std->cur_bootdev = NULL;
+ return 0;
+ }
+ if (bootdev_find_by_any(argv[1], &dev))
+ return CMD_RET_FAILURE;
+
+ std->cur_bootdev = dev;
+
+ return 0;
+}
+
+static int do_bootdev_info(struct cmd_tbl *cmdtp, int flag, int argc,
+ char *const argv[])
+{
+ struct bootstd_priv *priv;
+ struct bootflow *bflow;
+ int ret, i, num_valid;
+ struct udevice *dev;
+ bool probe;
+
+ probe = argc >= 2 && !strcmp(argv[1], "-p");
+
+ ret = bootdev_check_state(&priv);
+ if (ret)
+ return CMD_RET_FAILURE;
+
+ dev = priv->cur_bootdev;
+
+ /* Count the number of bootflows, including how many are valid*/
+ num_valid = 0;
+ for (ret = bootdev_first_bootflow(dev, &bflow), i = 0;
+ !ret;
+ ret = bootdev_next_bootflow(&bflow), i++)
+ num_valid += bflow->state == BOOTFLOWST_READY;
+
+ /*
+ * Prove the device, if requested, otherwise assume that there is no
+ * error
+ */
+ ret = 0;
+ if (probe)
+ ret = device_probe(dev);
+
+ printf("Name: %s\n", dev->name);
+ printf("Sequence: %d\n", dev_seq(dev));
+ printf("Status: %s\n", ret ? simple_itoa(ret) : device_active(dev) ?
+ "Probed" : "OK");
+ printf("Uclass: %s\n", dev_get_uclass_name(dev_get_parent(dev)));
+ printf("Bootflows: %d (%d valid)\n", i, num_valid);
+
+ return 0;
+}
+
+#ifdef CONFIG_SYS_LONGHELP
+static char bootdev_help_text[] =
+ "list [-p] - list all available bootdevs (-p to probe)\n"
+ "bootdev select <bd> - select a bootdev by name | label | seq\n"
+ "bootdev info [-p] - show information about a bootdev (-p to probe)";
+#endif
+
+U_BOOT_CMD_WITH_SUBCMDS(bootdev, "Boot devices", bootdev_help_text,
+ U_BOOT_SUBCMD_MKENT(list, 2, 1, do_bootdev_list),
+ U_BOOT_SUBCMD_MKENT(select, 2, 1, do_bootdev_select),
+ U_BOOT_SUBCMD_MKENT(info, 2, 1, do_bootdev_info));