1 files changed, 281 insertions, 0 deletions
diff --git a/cmd/remoteproc.c b/cmd/remoteproc.c
new file mode 100644
index 0000000..794a406
--- /dev/null
+++ b/cmd/remoteproc.c
@@ -0,0 +1,281 @@
+/*
+ * (C) Copyright 2015
+ * Texas Instruments Incorporated - http://www.ti.com/
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+#include <common.h>
+#include <command.h>
+#include <dm.h>
+#include <errno.h>
+#include <malloc.h>
+#include <remoteproc.h>
+
+/**
+ * print_remoteproc_list() - print all the remote processor devices
+ *
+ * Return: 0 if no error, else returns appropriate error value.
+ */
+static int print_remoteproc_list(void)
+{
+	struct udevice *dev;
+	struct uclass *uc;
+	int ret;
+	char *type;
+
+	ret = uclass_get(UCLASS_REMOTEPROC, &uc);
+	if (ret) {
+		printf("Cannot find Remote processor class\n");
+		return ret;
+	}
+
+	uclass_foreach_dev(dev, uc) {
+		struct dm_rproc_uclass_pdata *uc_pdata;
+		const struct dm_rproc_ops *ops = rproc_get_ops(dev);
+
+		uc_pdata = dev_get_uclass_platdata(dev);
+
+		switch (uc_pdata->mem_type) {
+		case RPROC_INTERNAL_MEMORY_MAPPED:
+			type = "internal memory mapped";
+			break;
+		default:
+			type = "unknown";
+			break;
+		}
+		printf("%d - Name:'%s' type:'%s' supports: %s%s%s%s%s%s\n",
+		       dev->seq,
+		       uc_pdata->name,
+		       type,
+		       ops->load ? "load " : "",
+		       ops->start ? "start " : "",
+		       ops->stop ? "stop " : "",
+		       ops->reset ? "reset " : "",
+		       ops->is_running ? "is_running " : "",
+		       ops->ping ? "ping " : "");
+	}
+	return 0;
+}
+
+/**
+ * do_rproc_init() - do basic initialization
+ * @cmdtp:	unused
+ * @flag:	unused
+ * @argc:	unused
+ * @argv:	unused
+ *
+ * Return: 0 if no error, else returns appropriate error value.
+ */
+static int do_rproc_init(cmd_tbl_t *cmdtp, int flag, int argc,
+			 char *const argv[])
+{
+	if (rproc_is_initialized()) {
+		printf("\tRemote Processors are already initialized\n");
+	} else {
+		if (!rproc_init())
+			return 0;
+		printf("Few Remote Processors failed to be initalized\n");
+	}
+
+	return CMD_RET_FAILURE;
+}
+
+/**
+ * do_remoteproc_list() - print list of remote proc devices.
+ * @cmdtp:	unused
+ * @flag:	unused
+ * @argc:	unused
+ * @argv:	unused
+ *
+ * Return: 0 if no error, else returns appropriate error value.
+ */
+static int do_remoteproc_list(cmd_tbl_t *cmdtp, int flag, int argc,
+			      char *const argv[])
+{
+	if (!rproc_is_initialized()) {
+		printf("\t Remote Processors is not initialized\n");
+		return CMD_RET_USAGE;
+	}
+
+	if (print_remoteproc_list())
+		return CMD_RET_FAILURE;
+
+	return 0;
+}
+
+/**
+ * do_remoteproc_load() - Load a remote processor with binary image
+ * @cmdtp:	unused
+ * @flag:	unused
+ * @argc:	argument count for the load function
+ * @argv:	arguments for the load function
+ *
+ * Return: 0 if no error, else returns appropriate error value.
+ */
+static int do_remoteproc_load(cmd_tbl_t *cmdtp, int flag, int argc,
+			      char *const argv[])
+{
+	ulong addr, size;
+	int id, ret;
+
+	if (argc != 4)
+		return CMD_RET_USAGE;
+
+	id = (int)simple_strtoul(argv[1], NULL, 3);
+	addr = simple_strtoul(argv[2], NULL, 16);
+
+	size = simple_strtoul(argv[3], NULL, 16);
+
+	if (!size) {
+		printf("\t Expect some size??\n");
+		return CMD_RET_USAGE;
+	}
+
+	if (!rproc_is_initialized()) {
+		printf("\tRemote Processors are not initialized\n");
+		return CMD_RET_USAGE;
+	}
+
+	ret = rproc_load(id, addr, size);
+	printf("Load Remote Processor %d with data@addr=0x%08lx %lu bytes:%s\n",
+	       id, addr, size, ret ? " Failed!" : " Success!");
+
+	return ret ? CMD_RET_FAILURE : 0;
+}
+
+/**
+ * do_remoteproc_wrapper() - wrapper for various  rproc commands
+ * @cmdtp:	unused
+ * @flag:	unused
+ * @argc:	argument count for the rproc command
+ * @argv:	arguments for the rproc command
+ *
+ * Most of the commands just take id as a parameter andinvoke various
+ * helper routines in remote processor core. by using a set of
+ * common checks, we can reduce the amount of code used for this.
+ *
+ * Return: 0 if no error, else returns appropriate error value.
+ */
+static int do_remoteproc_wrapper(cmd_tbl_t *cmdtp, int flag, int argc,
+				 char *const argv[])
+{
+	int id, ret = CMD_RET_USAGE;
+
+	if (argc != 2)
+		return CMD_RET_USAGE;
+
+	id = (int)simple_strtoul(argv[1], NULL, 3);
+
+	if (!rproc_is_initialized()) {
+		printf("\tRemote Processors are not initialized\n");
+		return CMD_RET_USAGE;
+	}
+
+	if (!strcmp(argv[0], "start")) {
+		ret = rproc_start(id);
+	} else if (!strcmp(argv[0], "stop")) {
+		ret = rproc_stop(id);
+	} else if (!strcmp(argv[0], "reset")) {
+		ret = rproc_reset(id);
+	} else if (!strcmp(argv[0], "is_running")) {
+		ret = rproc_is_running(id);
+		if (!ret) {
+			printf("Remote processor is Running\n");
+		} else if (ret == 1) {
+			printf("Remote processor is NOT Running\n");
+			ret = 0;
+		}
+		/* Else error.. */
+	} else if (!strcmp(argv[0], "ping")) {
+		ret = rproc_ping(id);
+		if (!ret) {
+			printf("Remote processor responds 'Pong'\n");
+		} else if (ret == 1) {
+			printf("No response from Remote processor\n");
+			ret = 0;
+		}
+		/* Else error.. */
+	}
+
+	if (ret < 0)
+		printf("Operation Failed with error (%d)\n", ret);
+
+	return ret ? CMD_RET_FAILURE : 0;
+}
+
+static cmd_tbl_t cmd_remoteproc_sub[] = {
+	U_BOOT_CMD_MKENT(init, 0, 1, do_rproc_init,
+			 "Enumerate and initialize all processors", ""),
+	U_BOOT_CMD_MKENT(list, 0, 1, do_remoteproc_list,
+			 "list remote processors", ""),
+	U_BOOT_CMD_MKENT(load, 5, 1, do_remoteproc_load,
+			 "Load remote processor with provided image",
+			 "<id> [addr] [size]\n"
+			 "- id: ID of the remote processor(see 'list' cmd)\n"
+			 "- addr: Address in memory of the image to loadup\n"
+			 "- size: Size of the image to loadup\n"),
+	U_BOOT_CMD_MKENT(start, 1, 1, do_remoteproc_wrapper,
+			 "Start remote processor",
+			 "id - ID of the remote processor (see 'list' cmd)\n"),
+	U_BOOT_CMD_MKENT(stop, 1, 1, do_remoteproc_wrapper,
+			 "Stop remote processor",
+			 "id - ID of the remote processor (see 'list' cmd)\n"),
+	U_BOOT_CMD_MKENT(reset, 1, 1, do_remoteproc_wrapper,
+			 "Reset remote processor",
+			 "id - ID of the remote processor (see 'list' cmd)\n"),
+	U_BOOT_CMD_MKENT(is_running, 1, 1, do_remoteproc_wrapper,
+			 "Check to see if remote processor is running\n",
+			 "id - ID of the remote processor (see 'list' cmd)\n"),
+	U_BOOT_CMD_MKENT(ping, 1, 1, do_remoteproc_wrapper,
+			 "Ping to communicate with remote processor\n",
+			 "id - ID of the remote processor (see 'list' cmd)\n"),
+};
+
+/**
+ * do_remoteproc() - (replace: short desc)
+ * @cmdtp:	unused
+ * @flag:	unused
+ * @argc:	argument count
+ * @argv:	argument list
+ *
+ * parses up the command table to invoke the correct command.
+ *
+ * Return: 0 if no error, else returns appropriate error value.
+ */
+static int do_remoteproc(cmd_tbl_t *cmdtp, int flag, int argc,
+			 char *const argv[])
+{
+	cmd_tbl_t *c = NULL;
+
+	/* Strip off leading 'rproc' command argument */
+	argc--;
+	argv++;
+
+	if (argc)
+		c = find_cmd_tbl(argv[0], cmd_remoteproc_sub,
+				 ARRAY_SIZE(cmd_remoteproc_sub));
+	if (c)
+		return c->cmd(cmdtp, flag, argc, argv);
+
+	return CMD_RET_USAGE;
+}
+
+U_BOOT_CMD(rproc, 5, 1, do_remoteproc,
+	   "Control operation of remote processors in an SoC",
+	   " [init|list|load|start|stop|reset|is_running|ping]\n"
+	   "\t\t Where:\n"
+	   "\t\t[addr] is a memory address\n"
+	   "\t\t<id> is a numerical identifier for the remote processor\n"
+	   "\t\t     provided by 'list' command.\n"
+	   "\t\tNote: Remote processors must be initalized prior to usage\n"
+	   "\t\tNote: Services are dependent on the driver capability\n"
+	   "\t\t      'list' command shows the capability of each device\n"
+	   "\n\tSubcommands:\n"
+	   "\tinit   - Enumerate and initalize the remote processors\n"
+	   "\tlist   - list available remote processors\n"
+	   "\tload <id> [addr] [size]- Load the remote processor with binary\n"
+	   "\t		  image stored at address [addr] in memory\n"
+	   "\tstart <id>	- Start the remote processor(must be loaded)\n"
+	   "\tstop <id>	- Stop the remote processor\n"
+	   "\treset <id>	- Reset the remote processor\n"
+	   "\tis_running <id> - Reports if the remote processor is running\n"
+	   "\tping <id>	- Ping the remote processor for communication\n");