--- /dev/null
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2022-2023 Arm Limited and/or its affiliates <open-source-office@arm.com>
+ *
+ * Authors:
+ * Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
+ */
+#include <common.h>
+#include <arm_ffa.h>
+#include <command.h>
+#include <dm.h>
+#include <mapmem.h>
+#include <stdlib.h>
+#include <asm/io.h>
+
+/* Select the right physical address formatting according to the platform */
+#ifdef CONFIG_PHYS_64BIT
+#define PhysAddrLength "ll"
+#else
+#define PhysAddrLength ""
+#endif
+#define PHYS_ADDR_LN "%" PhysAddrLength "x"
+
+/**
+ * ffa_get_dev() - Return the FF-A device
+ * @devp: pointer to the FF-A device
+ *
+ * Search for the FF-A device.
+ *
+ * Return:
+ * 0 on success. Otherwise, failure
+ */
+static int ffa_get_dev(struct udevice **devp)
+{
+ int ret;
+
+ ret = uclass_first_device_err(UCLASS_FFA, devp);
+ if (ret) {
+ log_err("Cannot find FF-A bus device\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+/**
+ * do_ffa_getpart() - implementation of the getpart subcommand
+ * @cmdtp: Command Table
+ * @flag: flags
+ * @argc: number of arguments
+ * @argv: arguments
+ *
+ * Query a secure partition information. The secure partition UUID is provided
+ * as an argument. The function uses the arm_ffa driver
+ * partition_info_get operation which implements FFA_PARTITION_INFO_GET
+ * ABI to retrieve the data. The input UUID string is expected to be in big
+ * endian format.
+ *
+ * Return:
+ *
+ * CMD_RET_SUCCESS: on success, otherwise failure
+ */
+static int do_ffa_getpart(struct cmd_tbl *cmdtp, int flag, int argc,
+ char *const argv[])
+{
+ u32 count = 0;
+ int ret;
+ struct ffa_partition_desc *descs;
+ u32 i;
+ struct udevice *dev;
+
+ if (argc != 2) {
+ log_err("Missing argument\n");
+ return CMD_RET_USAGE;
+ }
+
+ ret = ffa_get_dev(&dev);
+ if (ret)
+ return CMD_RET_FAILURE;
+
+ /* Ask the driver to fill the buffer with the SPs info */
+
+ ret = ffa_partition_info_get(dev, argv[1], &count, &descs);
+ if (ret) {
+ log_err("Failure in querying partition(s) info (error code: %d)\n", ret);
+ return CMD_RET_FAILURE;
+ }
+
+ /* SPs found , show the partition information */
+ for (i = 0; i < count ; i++) {
+ log_info("Partition: id = %x , exec_ctxt %x , properties %x\n",
+ descs[i].info.id,
+ descs[i].info.exec_ctxt,
+ descs[i].info.properties);
+ }
+
+ return CMD_RET_SUCCESS;
+}
+
+/**
+ * do_ffa_ping() - implementation of the ping subcommand
+ * @cmdtp: Command Table
+ * @flag: flags
+ * @argc: number of arguments
+ * @argv: arguments
+ *
+ * Send data to a secure partition. The secure partition UUID is provided
+ * as an argument. Use the arm_ffa driver sync_send_receive operation
+ * which implements FFA_MSG_SEND_DIRECT_{REQ,RESP} ABIs to send/receive data.
+ *
+ * Return:
+ *
+ * CMD_RET_SUCCESS: on success, otherwise failure
+ */
+static int do_ffa_ping(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
+{
+ struct ffa_send_direct_data msg = {
+ .data0 = 0xaaaaaaaa,
+ .data1 = 0xbbbbbbbb,
+ .data2 = 0xcccccccc,
+ .data3 = 0xdddddddd,
+ .data4 = 0xeeeeeeee,
+ };
+ u16 part_id;
+ int ret;
+ struct udevice *dev;
+
+ if (argc != 2) {
+ log_err("Missing argument\n");
+ return CMD_RET_USAGE;
+ }
+
+ part_id = strtoul(argv[1], NULL, 16);
+ if (!part_id) {
+ log_err("Partition ID can not be 0\n");
+ return CMD_RET_USAGE;
+ }
+
+ ret = ffa_get_dev(&dev);
+ if (ret)
+ return CMD_RET_FAILURE;
+
+ ret = ffa_sync_send_receive(dev, part_id, &msg, 1);
+ if (!ret) {
+ u8 cnt;
+
+ log_info("SP response:\n[LSB]\n");
+ for (cnt = 0;
+ cnt < sizeof(struct ffa_send_direct_data) / sizeof(u64);
+ cnt++)
+ log_info("%llx\n", ((u64 *)&msg)[cnt]);
+ return CMD_RET_SUCCESS;
+ }
+
+ log_err("Sending direct request error (%d)\n", ret);
+ return CMD_RET_FAILURE;
+}
+
+/**
+ *do_ffa_devlist() - implementation of the devlist subcommand
+ * @cmdtp: [in] Command Table
+ * @flag: flags
+ * @argc: number of arguments
+ * @argv: arguments
+ *
+ * Query the device belonging to the UCLASS_FFA
+ * class.
+ *
+ * Return:
+ *
+ * CMD_RET_SUCCESS: on success, otherwise failure
+ */
+static int do_ffa_devlist(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
+{
+ struct udevice *dev;
+ int ret;
+
+ ret = ffa_get_dev(&dev);
+ if (ret)
+ return CMD_RET_FAILURE;
+
+ log_info("device %s, addr " PHYS_ADDR_LN ", driver %s, ops " PHYS_ADDR_LN "\n",
+ dev->name,
+ map_to_sysmem(dev),
+ dev->driver->name,
+ map_to_sysmem(dev->driver->ops));
+
+ return CMD_RET_SUCCESS;
+}
+
+static char armffa_help_text[] =
+ "getpart <partition UUID>\n"
+ " - lists the partition(s) info\n"
+ "ping <partition ID>\n"
+ " - sends a data pattern to the specified partition\n"
+ "devlist\n"
+ " - displays information about the FF-A device/driver\n";
+
+U_BOOT_CMD_WITH_SUBCMDS(armffa, "Arm FF-A test command", armffa_help_text,
+ U_BOOT_SUBCMD_MKENT(getpart, 2, 1, do_ffa_getpart),
+ U_BOOT_SUBCMD_MKENT(ping, 2, 1, do_ffa_ping),
+ U_BOOT_SUBCMD_MKENT(devlist, 1, 1, do_ffa_devlist));
--- /dev/null
+.. SPDX-License-Identifier: GPL-2.0+:
+
+armffa command
+==============
+
+Synopsis
+--------
+
+::
+
+ armffa [sub-command] [arguments]
+
+ sub-commands:
+
+ getpart [partition UUID]
+
+ lists the partition(s) info
+
+ ping [partition ID]
+
+ sends a data pattern to the specified partition
+
+ devlist
+
+ displays information about the FF-A device/driver
+
+Description
+-----------
+
+armffa is a command showcasing how to use the FF-A bus and how to invoke its operations.
+
+This provides a guidance to the client developers on how to call the FF-A bus interfaces.
+
+The command also allows to gather secure partitions information and ping these partitions.
+
+The command is also helpful in testing the communication with secure partitions.
+
+Example
+-------
+
+The following examples are run on Corstone-1000 platform.
+
+* ping
+
+::
+
+ corstone1000# armffa ping 0x8003
+ SP response:
+ [LSB]
+ fffffffe
+ 0
+ 0
+ 0
+ 0
+
+* ping (failure case)
+
+::
+
+ corstone1000# armffa ping 0
+ Sending direct request error (-22)
+
+* getpart
+
+::
+
+ corstone1000# armffa getpart 33d532ed-e699-0942-c09c-a798d9cd722d
+ Partition: id = 8003 , exec_ctxt 1 , properties 3
+
+* getpart (failure case)
+
+::
+
+ corstone1000# armffa getpart 33d532ed-e699-0942-c09c-a798d9cd7221
+ INVALID_PARAMETERS: Unrecognized UUID
+ Failure in querying partitions count (error code: -22)
+
+* devlist
+
+::
+
+ corstone1000# armffa devlist
+ device name arm_ffa, dev 00000000fdf41c30, driver name arm_ffa, ops 00000000fffc0e98
+
+Configuration
+-------------
+
+The command is available if CONFIG_CMD_ARMFFA=y and CONFIG_ARM_FFA_TRANSPORT=y.
+
+Return value
+------------
+
+The return value $? is 0 (true) on success, 1 (false) on failure.
projects / platform / kernel / u-boot.git / commitdiff