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cmd/remoteproc.c
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ddf56bc7e drivers: Introduc... |
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/* * (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 "); 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 ", 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 "); } else { if (!rproc_init()) return 0; printf("Few Remote Processors failed to be initalized "); } 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 "); 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?? "); return CMD_RET_USAGE; } if (!rproc_is_initialized()) { printf("\tRemote Processors are not initialized "); return CMD_RET_USAGE; } ret = rproc_load(id, addr, size); printf("Load Remote Processor %d with data@addr=0x%08lx %lu bytes:%s ", 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 "); 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 "); } else if (ret == 1) { printf("Remote processor is NOT Running "); ret = 0; } /* Else error.. */ } else if (!strcmp(argv[0], "ping")) { ret = rproc_ping(id); if (!ret) { printf("Remote processor responds 'Pong' "); } else if (ret == 1) { printf("No response from Remote processor "); ret = 0; } /* Else error.. */ } if (ret < 0) printf("Operation Failed with error (%d) ", 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] " "- id: ID of the remote processor(see 'list' cmd) " "- addr: Address in memory of the image to loadup " "- size: Size of the image to loadup "), U_BOOT_CMD_MKENT(start, 1, 1, do_remoteproc_wrapper, "Start remote processor", "id - ID of the remote processor (see 'list' cmd) "), U_BOOT_CMD_MKENT(stop, 1, 1, do_remoteproc_wrapper, "Stop remote processor", "id - ID of the remote processor (see 'list' cmd) "), U_BOOT_CMD_MKENT(reset, 1, 1, do_remoteproc_wrapper, "Reset remote processor", "id - ID of the remote processor (see 'list' cmd) "), U_BOOT_CMD_MKENT(is_running, 1, 1, do_remoteproc_wrapper, "Check to see if remote processor is running ", "id - ID of the remote processor (see 'list' cmd) "), U_BOOT_CMD_MKENT(ping, 1, 1, do_remoteproc_wrapper, "Ping to communicate with remote processor ", "id - ID of the remote processor (see 'list' cmd) "), }; /** * 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] " "\t\t Where: " "\t\t[addr] is a memory address " "\t\t<id> is a numerical identifier for the remote processor " "\t\t provided by 'list' command. " "\t\tNote: Remote processors must be initalized prior to usage " "\t\tNote: Services are dependent on the driver capability " "\t\t 'list' command shows the capability of each device " " \tSubcommands: " "\tinit - Enumerate and initalize the remote processors " "\tlist - list available remote processors " "\tload <id> [addr] [size]- Load the remote processor with binary " "\t image stored at address [addr] in memory " "\tstart <id> - Start the remote processor(must be loaded) " "\tstop <id> - Stop the remote processor " "\treset <id> - Reset the remote processor " "\tis_running <id> - Reports if the remote processor is running " "\tping <id> - Ping the remote processor for communication "); |