From 08d0d6f32ecf75a6c5dede5fc9ee84b84d8b90e7 Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Thu, 21 Nov 2013 13:39:02 -0800
Subject: [PATCH] common: Add new clk command
Command provides just dump subcommand for showing clock
frequencies in a soc.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Stefano Babic <sbabic@denx.de>
---
README | 1 +
common/Makefile | 1 +
common/cmd_clk.c | 51 ++++++++++++++++++++++++++++++++++++++++
include/clk.h | 6 +++++
include/config_cmd_all.h | 1 +
5 files changed, 60 insertions(+)
create mode 100644 common/cmd_clk.c
create mode 100644 include/clk.h
diff --git a/README b/README
index 176de61a33..ba4be660be 100644
--- a/README
+++ b/README
@@ -896,6 +896,7 @@ The following options need to be configured:
CONFIG_CMD_BSP * Board specific commands
CONFIG_CMD_BOOTD bootd
CONFIG_CMD_CACHE * icache, dcache
+ CONFIG_CMD_CLK * clock command support
CONFIG_CMD_CONSOLE coninfo
CONFIG_CMD_CRC32 * crc32
CONFIG_CMD_DATE * support for RTC, date/time...
diff --git a/common/Makefile b/common/Makefile
index 4d99ecd616..a83246ee27 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -59,6 +59,7 @@ obj-$(CONFIG_CMD_BOOTLDR) += cmd_bootldr.o
obj-$(CONFIG_CMD_BOOTSTAGE) += cmd_bootstage.o
obj-$(CONFIG_CMD_CACHE) += cmd_cache.o
obj-$(CONFIG_CMD_CBFS) += cmd_cbfs.o
+obj-$(CONFIG_CMD_CLK) += cmd_clk.o
obj-$(CONFIG_CMD_CONSOLE) += cmd_console.o
obj-$(CONFIG_CMD_CPLBINFO) += cmd_cplbinfo.o
obj-$(CONFIG_DATAFLASH_MMC_SELECT) += cmd_dataflash_mmc_mux.o
diff --git a/common/cmd_clk.c b/common/cmd_clk.c
new file mode 100644
index 0000000000..6d3d46a184
--- /dev/null
+++ b/common/cmd_clk.c
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2013 Xilinx, Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+#include <common.h>
+#include <command.h>
+#include <clk.h>
+
+int __weak soc_clk_dump(void)
+{
+ puts("Not implemented\n");
+ return 1;
+}
+
+static int do_clk_dump(cmd_tbl_t *cmdtp, int flag, int argc,
+ char *const argv[])
+{
+ return soc_clk_dump();
+}
+
+static cmd_tbl_t cmd_clk_sub[] = {
+ U_BOOT_CMD_MKENT(dump, 1, 1, do_clk_dump, "", ""),
+};
+
+static int do_clk(cmd_tbl_t *cmdtp, int flag, int argc,
+ char *const argv[])
+{
+ cmd_tbl_t *c;
+
+ if (argc < 2)
+ return CMD_RET_USAGE;
+
+ /* Strip off leading 'clk' command argument */
+ argc--;
+ argv++;
+
+ c = find_cmd_tbl(argv[0], &cmd_clk_sub[0], ARRAY_SIZE(cmd_clk_sub));
+
+ if (c)
+ return c->cmd(cmdtp, flag, argc, argv);
+ else
+ return CMD_RET_USAGE;
+}
+
+#ifdef CONFIG_SYS_LONGHELP
+static char clk_help_text[] =
+ "dump - Print clock frequencies";
+#endif
+
+U_BOOT_CMD(clk, 2, 1, do_clk, "CLK sub-system", clk_help_text);
diff --git a/include/clk.h b/include/clk.h
new file mode 100644
index 0000000000..df4570c6f5
--- /dev/null
+++ b/include/clk.h
@@ -0,0 +1,6 @@
+#ifndef _CLK_H_
+#define _CLK_H_
+
+int soc_clk_dump(void);
+
+#endif /* _CLK_H_ */
diff --git a/include/config_cmd_all.h b/include/config_cmd_all.h
index d84706969d..3e8983f244 100644
--- a/include/config_cmd_all.h
+++ b/include/config_cmd_all.h
@@ -23,6 +23,7 @@
#define CONFIG_CMD_BSP /* Board Specific functions */
#define CONFIG_CMD_CACHE /* icache, dcache */
#define CONFIG_CMD_CDP /* Cisco Discovery Protocol */
+#define CONFIG_CMD_CLK /* Clock support */
#define CONFIG_CMD_CONSOLE /* coninfo */
#define CONFIG_CMD_DATE /* support for RTC, date/time...*/
#define CONFIG_CMD_DHCP /* DHCP Support */
--
2.39.5