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245 lines
5.2 KiB
245 lines
5.2 KiB
// SPDX-License-Identifier: GPL-2.0+ |
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/* |
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* Copyright (C) 2011 Samsung Electronics |
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* Lukasz Majewski <[email protected]> |
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* |
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* Copyright (c) 2015, NVIDIA CORPORATION. All rights reserved. |
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*/ |
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#include <errno.h> |
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#include <common.h> |
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#include <command.h> |
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#include <console.h> |
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#include <g_dnl.h> |
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#include <part.h> |
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#include <usb.h> |
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#include <usb_mass_storage.h> |
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static int ums_read_sector(struct ums *ums_dev, |
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ulong start, lbaint_t blkcnt, void *buf) |
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{ |
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struct blk_desc *block_dev = &ums_dev->block_dev; |
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lbaint_t blkstart = start + ums_dev->start_sector; |
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return blk_dread(block_dev, blkstart, blkcnt, buf); |
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} |
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static int ums_write_sector(struct ums *ums_dev, |
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ulong start, lbaint_t blkcnt, const void *buf) |
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{ |
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struct blk_desc *block_dev = &ums_dev->block_dev; |
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lbaint_t blkstart = start + ums_dev->start_sector; |
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return blk_dwrite(block_dev, blkstart, blkcnt, buf); |
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} |
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static struct ums *ums; |
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static int ums_count; |
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static void ums_fini(void) |
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{ |
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int i; |
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for (i = 0; i < ums_count; i++) |
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free((void *)ums[i].name); |
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free(ums); |
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ums = NULL; |
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ums_count = 0; |
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} |
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#define UMS_NAME_LEN 16 |
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static int ums_init(const char *devtype, const char *devnums_part_str) |
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{ |
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char *s, *t, *devnum_part_str, *name; |
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struct blk_desc *block_dev; |
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disk_partition_t info; |
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int partnum; |
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int ret = -1; |
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struct ums *ums_new; |
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s = strdup(devnums_part_str); |
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if (!s) |
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return -1; |
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t = s; |
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ums_count = 0; |
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for (;;) { |
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devnum_part_str = strsep(&t, ","); |
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if (!devnum_part_str) |
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break; |
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partnum = blk_get_device_part_str(devtype, devnum_part_str, |
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&block_dev, &info, 1); |
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if (partnum < 0) |
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goto cleanup; |
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/* Check if the argument is in legacy format. If yes, |
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* expose all partitions by setting the partnum = 0 |
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* e.g. ums 0 mmc 0 |
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*/ |
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if (!strchr(devnum_part_str, ':')) |
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partnum = 0; |
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/* f_mass_storage.c assumes SECTOR_SIZE sectors */ |
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if (block_dev->blksz != SECTOR_SIZE) |
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goto cleanup; |
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ums_new = realloc(ums, (ums_count + 1) * sizeof(*ums)); |
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if (!ums_new) |
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goto cleanup; |
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ums = ums_new; |
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/* if partnum = 0, expose all partitions */ |
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if (partnum == 0) { |
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ums[ums_count].start_sector = 0; |
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ums[ums_count].num_sectors = block_dev->lba; |
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} else { |
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ums[ums_count].start_sector = info.start; |
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ums[ums_count].num_sectors = info.size; |
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} |
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ums[ums_count].read_sector = ums_read_sector; |
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ums[ums_count].write_sector = ums_write_sector; |
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name = malloc(UMS_NAME_LEN); |
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if (!name) |
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goto cleanup; |
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snprintf(name, UMS_NAME_LEN, "UMS disk %d", ums_count); |
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ums[ums_count].name = name; |
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ums[ums_count].block_dev = *block_dev; |
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printf("UMS: LUN %d, dev %d, hwpart %d, sector %#x, count %#x\n", |
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ums_count, ums[ums_count].block_dev.devnum, |
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ums[ums_count].block_dev.hwpart, |
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ums[ums_count].start_sector, |
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ums[ums_count].num_sectors); |
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ums_count++; |
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} |
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if (ums_count) |
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ret = 0; |
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cleanup: |
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free(s); |
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if (ret < 0) |
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ums_fini(); |
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return ret; |
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} |
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static int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag, |
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int argc, char * const argv[]) |
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{ |
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const char *usb_controller; |
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const char *devtype; |
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const char *devnum; |
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unsigned int controller_index; |
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int rc; |
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int cable_ready_timeout __maybe_unused; |
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if (argc < 3) |
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return CMD_RET_USAGE; |
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usb_controller = argv[1]; |
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if (argc >= 4) { |
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devtype = argv[2]; |
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devnum = argv[3]; |
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} else { |
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devtype = "mmc"; |
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devnum = argv[2]; |
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} |
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rc = ums_init(devtype, devnum); |
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if (rc < 0) |
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return CMD_RET_FAILURE; |
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controller_index = (unsigned int)(simple_strtoul( |
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usb_controller, NULL, 0)); |
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if (board_usb_init(controller_index, USB_INIT_DEVICE)) { |
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pr_err("Couldn't init USB controller.\n"); |
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rc = CMD_RET_FAILURE; |
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goto cleanup_ums_init; |
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} |
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rc = fsg_init(ums, ums_count); |
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if (rc) { |
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pr_err("fsg_init failed\n"); |
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rc = CMD_RET_FAILURE; |
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goto cleanup_board; |
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} |
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rc = g_dnl_register("usb_dnl_ums"); |
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if (rc) { |
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pr_err("g_dnl_register failed\n"); |
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rc = CMD_RET_FAILURE; |
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goto cleanup_board; |
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} |
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/* Timeout unit: seconds */ |
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cable_ready_timeout = UMS_CABLE_READY_TIMEOUT; |
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if (!g_dnl_board_usb_cable_connected()) { |
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/* |
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* Won't execute if we don't know whether the cable is |
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* connected. |
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*/ |
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puts("Please connect USB cable.\n"); |
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while (!g_dnl_board_usb_cable_connected()) { |
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if (ctrlc()) { |
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puts("\rCTRL+C - Operation aborted.\n"); |
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rc = CMD_RET_SUCCESS; |
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goto cleanup_register; |
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} |
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if (!cable_ready_timeout) { |
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puts("\rUSB cable not detected.\n" \ |
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"Command exit.\n"); |
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rc = CMD_RET_SUCCESS; |
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goto cleanup_register; |
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} |
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printf("\rAuto exit in: %.2d s.", cable_ready_timeout); |
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mdelay(1000); |
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cable_ready_timeout--; |
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} |
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puts("\r\n"); |
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} |
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while (1) { |
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usb_gadget_handle_interrupts(controller_index); |
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rc = fsg_main_thread(NULL); |
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if (rc) { |
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/* Check I/O error */ |
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if (rc == -EIO) |
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printf("\rCheck USB cable connection\n"); |
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/* Check CTRL+C */ |
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if (rc == -EPIPE) |
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printf("\rCTRL+C - Operation aborted\n"); |
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rc = CMD_RET_SUCCESS; |
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goto cleanup_register; |
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} |
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} |
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cleanup_register: |
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g_dnl_unregister(); |
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cleanup_board: |
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board_usb_cleanup(controller_index, USB_INIT_DEVICE); |
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cleanup_ums_init: |
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ums_fini(); |
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return rc; |
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} |
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U_BOOT_CMD(ums, 4, 1, do_usb_mass_storage, |
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"Use the UMS [USB Mass Storage]", |
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"<USB_controller> [<devtype>] <dev[:part]> e.g. ums 0 mmc 0\n" |
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" devtype defaults to mmc" |
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);
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