[PATCH v5 2/6] cmd: Add a sysinfo command
Detlev Casanova
detlev.casanova at collabora.com
Mon Oct 2 17:20:06 CEST 2023
The command is able to show different information for the running
system:
* Model name
* Board ID
* Revision
This command can be used by boot shell scripts to select configurations
depending on the specific running system.
Reviewed-by: Marek Vasut <marek.vasut+renesas at mailbox.org>
Signed-off-by: Detlev Casanova <detlev.casanova at collabora.com>
---
cmd/Kconfig | 6 +++
cmd/Makefile | 1 +
cmd/sysinfo.c | 133 ++++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 140 insertions(+)
create mode 100644 cmd/sysinfo.c
diff --git a/cmd/Kconfig b/cmd/Kconfig
index 43ca10f69cc..67d019aa795 100644
--- a/cmd/Kconfig
+++ b/cmd/Kconfig
@@ -218,6 +218,12 @@ config CMD_SBI
help
Display information about the SBI implementation.
+config CMD_SYSINFO
+ bool "sysinfo"
+ depends on SYSINFO
+ help
+ Display information about the system.
+
endmenu
menu "Boot commands"
diff --git a/cmd/Makefile b/cmd/Makefile
index 9bebf321c39..972f3a4720e 100644
--- a/cmd/Makefile
+++ b/cmd/Makefile
@@ -167,6 +167,7 @@ obj-$(CONFIG_CMD_SPI) += spi.o
obj-$(CONFIG_CMD_STRINGS) += strings.o
obj-$(CONFIG_CMD_SMC) += smccc.o
obj-$(CONFIG_CMD_SYSBOOT) += sysboot.o
+obj-$(CONFIG_CMD_SYSINFO) += sysinfo.o
obj-$(CONFIG_CMD_STACKPROTECTOR_TEST) += stackprot_test.o
obj-$(CONFIG_CMD_TEMPERATURE) += temperature.o
obj-$(CONFIG_CMD_TERMINAL) += terminal.o
diff --git a/cmd/sysinfo.c b/cmd/sysinfo.c
new file mode 100644
index 00000000000..46369ff9ac7
--- /dev/null
+++ b/cmd/sysinfo.c
@@ -0,0 +1,133 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2023
+ * Detlev Casanova <detlev.casanova at collabora.com>
+ */
+
+#include <command.h>
+#include <env.h>
+#include <sysinfo.h>
+#include <exports.h>
+
+static int get_sysinfo(struct udevice **devp)
+{
+ int ret = sysinfo_get(devp);
+
+ if (ret) {
+ printf("Cannot get sysinfo: %d\n", ret);
+ return ret;
+ }
+
+ ret = sysinfo_detect(*devp);
+ if (ret) {
+ printf("Cannot detect sysinfo: %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int do_sysinfo_model(struct cmd_tbl *cmdtp, int flag, int argc,
+ char *const argv[])
+{
+ struct udevice *dev;
+ char model[64];
+ int ret = get_sysinfo(&dev);
+
+ if (ret)
+ return CMD_RET_FAILURE;
+
+ ret = sysinfo_get_str(dev,
+ SYSINFO_ID_BOARD_MODEL,
+ sizeof(model),
+ model);
+ if (ret) {
+ printf("Cannot get sysinfo str: %d\n", ret);
+ return CMD_RET_FAILURE;
+ }
+
+ if (argc == 2)
+ ret = env_set(argv[1], model);
+ else
+ printf("%s\n", model);
+
+ if (ret)
+ return CMD_RET_FAILURE;
+ else
+ return CMD_RET_SUCCESS;
+}
+
+static int do_sysinfo_id(struct cmd_tbl *cmdtp, int flag, int argc,
+ char *const argv[])
+{
+ struct udevice *dev;
+ u32 board_id;
+ int ret = get_sysinfo(&dev);
+
+ if (ret)
+ return CMD_RET_FAILURE;
+
+ ret = sysinfo_get_int(dev, SYSINFO_ID_BOARD_ID, &board_id);
+ if (ret) {
+ printf("Cannot get sysinfo int: %d\n", ret);
+ return CMD_RET_FAILURE;
+ }
+
+ if (argc == 2)
+ ret = env_set_hex(argv[1], board_id);
+ else
+ printf("0x%02x\n", board_id);
+
+ if (ret)
+ return CMD_RET_FAILURE;
+ else
+ return CMD_RET_SUCCESS;
+}
+
+static int do_sysinfo_revision(struct cmd_tbl *cmdtp, int flag, int argc,
+ char *const argv[])
+{
+ struct udevice *dev;
+ int rev_major;
+ int rev_minor;
+ char rev[64];
+ int ret = get_sysinfo(&dev);
+
+ if (ret)
+ return CMD_RET_FAILURE;
+
+ ret = sysinfo_get_int(dev, SYSINFO_ID_BOARD_REV_MAJOR, &rev_major);
+ if (ret) {
+ printf("Cannot get sysinfo int: %d\n", ret);
+ return CMD_RET_FAILURE;
+ }
+
+ ret = sysinfo_get_int(dev, SYSINFO_ID_BOARD_REV_MINOR, &rev_minor);
+ if (ret) {
+ printf("Cannot get sysinfo int: %d\n", ret);
+ return CMD_RET_FAILURE;
+ }
+
+ snprintf(rev, sizeof(rev), "%d.%d", rev_major, rev_minor);
+
+ if (argc == 2)
+ ret = env_set(argv[1], rev);
+ else
+ printf("%s\n", rev);
+
+ if (ret)
+ return CMD_RET_FAILURE;
+ else
+ return CMD_RET_SUCCESS;
+}
+
+static char sysinfo_help_text[] =
+ "model <varname> - Show or set the board model in varname\n"
+ "sysinfo id <varname> - Show or set the board id in varname (in format 0xHH)\n"
+ "sysinfo revision <varname> - Show or set the board revision in varname";
+
+U_BOOT_CMD_WITH_SUBCMDS(sysinfo, "System information", sysinfo_help_text,
+ U_BOOT_SUBCMD_MKENT(model, 2, 1, do_sysinfo_model),
+ U_BOOT_SUBCMD_MKENT(id, 2, 1, do_sysinfo_id),
+ U_BOOT_SUBCMD_MKENT(revision, 2, 1, do_sysinfo_revision),
+);
--
2.41.0
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