cmd_syno.c 5.0 KB

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * Commands to deal with Synology specifics.
  4. *
  5. * Copyright (C) 2015 Phil Sutter <phil@nwl.cc>
  6. */
  7. #include <common.h>
  8. #include <div64.h>
  9. #include <spi.h>
  10. #include <spi_flash.h>
  11. #include <linux/mtd/mtd.h>
  12. #include <asm/io.h>
  13. #include "../drivers/ddr/marvell/axp/ddr3_init.h"
  14. #define ETHADDR_MAX 4
  15. #define SYNO_SN_TAG "SN="
  16. #define SYNO_CHKSUM_TAG "CHK="
  17. static int do_syno_populate(int argc, char * const argv[])
  18. {
  19. unsigned int bus = CONFIG_SF_DEFAULT_BUS;
  20. unsigned int cs = CONFIG_SF_DEFAULT_CS;
  21. unsigned int speed = CONFIG_SF_DEFAULT_SPEED;
  22. unsigned int mode = CONFIG_SF_DEFAULT_MODE;
  23. struct spi_flash *flash;
  24. unsigned long addr = 0x80000; /* XXX: parameterize this? */
  25. loff_t offset = 0x007d0000;
  26. loff_t len = 0x00010000;
  27. char *buf, *bufp;
  28. char var[128];
  29. char val[128];
  30. int ret, n;
  31. /* XXX: arg parsing to select flash here? */
  32. flash = spi_flash_probe(bus, cs, speed, mode);
  33. if (!flash) {
  34. printf("Failed to initialize SPI flash at %u:%u\n", bus, cs);
  35. return 1;
  36. }
  37. buf = map_physmem(addr, len, MAP_WRBACK);
  38. if (!buf) {
  39. puts("Failed to map physical memory\n");
  40. return 1;
  41. }
  42. ret = spi_flash_read(flash, offset, len, buf);
  43. if (ret) {
  44. puts("Failed to read from SPI flash\n");
  45. goto out_unmap;
  46. }
  47. for (n = 0; n < ETHADDR_MAX; n++) {
  48. char ethaddr[ETH_ALEN];
  49. int i, sum = 0;
  50. unsigned char csum = 0;
  51. for (i = 0, bufp = buf + n * 7; i < ETH_ALEN; i++) {
  52. sum += bufp[i];
  53. csum += bufp[i];
  54. ethaddr[i] = bufp[i];
  55. }
  56. if (!sum) /* MAC address empty */
  57. continue;
  58. if (csum != bufp[i]) { /* seventh byte is checksum value */
  59. printf("Invalid MAC address for interface %d!\n", n);
  60. continue;
  61. }
  62. if (n == 0)
  63. sprintf(var, "ethaddr");
  64. else
  65. sprintf(var, "eth%daddr", n);
  66. snprintf(val, sizeof(val) - 1,
  67. "%02x:%02x:%02x:%02x:%02x:%02x",
  68. ethaddr[0], ethaddr[1], ethaddr[2],
  69. ethaddr[3], ethaddr[4], ethaddr[5]);
  70. printf("parsed %s = %s\n", var, val);
  71. env_set(var, val);
  72. }
  73. if (!strncmp(buf + 32, SYNO_SN_TAG, strlen(SYNO_SN_TAG))) {
  74. char *snp, *csump;
  75. int csum = 0;
  76. unsigned long c;
  77. snp = bufp = buf + 32 + strlen(SYNO_SN_TAG);
  78. for (n = 0; bufp[n] && bufp[n] != ','; n++)
  79. csum += bufp[n];
  80. bufp[n] = '\0';
  81. /* should come right after, but you never know */
  82. bufp = strstr(bufp + n + 1, SYNO_CHKSUM_TAG);
  83. if (!bufp) {
  84. printf("Serial number checksum tag missing!\n");
  85. goto out_unmap;
  86. }
  87. csump = bufp += strlen(SYNO_CHKSUM_TAG);
  88. for (n = 0; bufp[n] && bufp[n] != ','; n++)
  89. ;
  90. bufp[n] = '\0';
  91. if (strict_strtoul(csump, 10, &c) || c != csum) {
  92. puts("Invalid serial number found!\n");
  93. ret = 1;
  94. goto out_unmap;
  95. }
  96. printf("parsed SN = %s\n", snp);
  97. env_set("SN", snp);
  98. } else { /* old style format */
  99. unsigned char csum = 0;
  100. for (n = 0, bufp = buf + 32; n < 10; n++)
  101. csum += bufp[n];
  102. if (csum != bufp[n]) {
  103. puts("Invalid serial number found!\n");
  104. ret = 1;
  105. goto out_unmap;
  106. }
  107. bufp[n] = '\0';
  108. printf("parsed SN = %s\n", buf + 32);
  109. env_set("SN", buf + 32);
  110. }
  111. out_unmap:
  112. unmap_physmem(buf, len);
  113. return ret;
  114. }
  115. /* map bit position to function in POWER_MNG_CTRL_REG */
  116. static const char * const pwr_mng_bit_func[] = {
  117. "audio",
  118. "ge3", "ge2", "ge1", "ge0",
  119. "pcie00", "pcie01", "pcie02", "pcie03",
  120. "pcie10", "pcie11", "pcie12", "pcie13",
  121. "bp",
  122. "sata0_link", "sata0_core",
  123. "lcd",
  124. "sdio",
  125. "usb0", "usb1", "usb2",
  126. "idma", "xor0", "crypto",
  127. NULL,
  128. "tdm",
  129. "pcie20", "pcie30",
  130. "xor1",
  131. "sata1_link", "sata1_core",
  132. NULL,
  133. };
  134. static int do_syno_clk_gate(int argc, char * const argv[])
  135. {
  136. u32 pwr_mng_ctrl_reg = reg_read(POWER_MNG_CTRL_REG);
  137. const char *func, *state;
  138. int i, val;
  139. if (argc < 2)
  140. return -1;
  141. if (!strcmp(argv[1], "get")) {
  142. puts("Clock Gating:\n");
  143. for (i = 0; i < 32; i++) {
  144. func = pwr_mng_bit_func[i];
  145. if (!func)
  146. continue;
  147. state = pwr_mng_ctrl_reg & (1 << i) ? "ON" : "OFF";
  148. printf("%s:\t\t%s\n", func, state);
  149. }
  150. return 0;
  151. }
  152. if (argc < 4)
  153. return -1;
  154. if (!strcmp(argv[1], "set")) {
  155. func = argv[2];
  156. state = argv[3];
  157. for (i = 0; i < 32; i++) {
  158. if (!pwr_mng_bit_func[i])
  159. continue;
  160. if (!strcmp(func, pwr_mng_bit_func[i]))
  161. break;
  162. }
  163. if (i == 32) {
  164. printf("Error: name '%s' not known\n", func);
  165. return -1;
  166. }
  167. val = state[0] != '0';
  168. pwr_mng_ctrl_reg |= (val << i);
  169. pwr_mng_ctrl_reg &= ~(!val << i);
  170. reg_write(POWER_MNG_CTRL_REG, pwr_mng_ctrl_reg);
  171. }
  172. return 0;
  173. }
  174. static int do_syno(cmd_tbl_t *cmdtp, int flag,
  175. int argc, char * const argv[])
  176. {
  177. const char *cmd;
  178. int ret = 0;
  179. if (argc < 2)
  180. goto usage;
  181. cmd = argv[1];
  182. --argc;
  183. ++argv;
  184. if (!strcmp(cmd, "populate_env"))
  185. ret = do_syno_populate(argc, argv);
  186. else if (!strcmp(cmd, "clk_gate"))
  187. ret = do_syno_clk_gate(argc, argv);
  188. if (ret != -1)
  189. return ret;
  190. usage:
  191. return CMD_RET_USAGE;
  192. }
  193. U_BOOT_CMD(
  194. syno, 5, 1, do_syno,
  195. "Synology specific commands",
  196. "populate_env - Read vendor data from SPI flash into environment\n"
  197. "clk_gate (get|set name 1|0) - Manage clock gating\n"
  198. );