module_fuse.c 14 KB

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * Copyright 2019 NXP
  4. */
  5. #include <common.h>
  6. #include <fdt_support.h>
  7. #include <asm/io.h>
  8. #include <asm/arch/sys_proto.h>
  9. #include <asm/arch/imx-regs.h>
  10. #include <asm/mach-imx/module_fuse.h>
  11. #include <linux/errno.h>
  12. static struct fuse_entry_desc mx6_fuse_descs[] = {
  13. #if defined(CONFIG_MX6ULL)
  14. {MODULE_TSC, "/soc/aips-bus@2000000/tsc@2040000", 0x430, 22},
  15. {MODULE_ADC2, "/soc/aips-bus@2100000/adc@219c000", 0x430, 23},
  16. {MODULE_EPDC, "/soc/aips-bus@2200000/epdc@228c000", 0x430, 24},
  17. {MODULE_ESAI, "/soc/aips-bus@2000000/spba-bus@2000000/esai@2024000", 0x430, 25},
  18. {MODULE_FLEXCAN1, "/soc/aips-bus@2000000/can@2090000", 0x430, 26},
  19. {MODULE_FLEXCAN2, "/soc/aips-bus@2000000/can@2094000", 0x430, 27},
  20. {MODULE_SPDIF, "/soc/aips-bus@2000000/spba-bus@2000000/spdif@2004000", 0x440, 2},
  21. {MODULE_EIM, "/soc/aips-bus@2100000/weim@21b8000", 0x440, 3},
  22. {MODULE_SD1, "/soc/aips-bus@2100000/usdhc@2190000", 0x440, 4},
  23. {MODULE_SD2, "/soc/aips-bus@2100000/usdhc@2194000", 0x440, 5},
  24. {MODULE_QSPI1, "/soc/aips-bus@2100000/qspi@21e0000", 0x440, 6},
  25. {MODULE_GPMI, "/soc/gpmi-nand@1806000", 0x440, 7},
  26. {MODULE_APBHDMA, "/soc/dma-apbh@1804000", 0x440, 7},
  27. {MODULE_LCDIF, "/soc/aips-bus@2100000/lcdif@21c8000", 0x440, 8},
  28. {MODULE_PXP, "/soc/aips-bus@2100000/pxp@21cc000", 0x440, 9},
  29. {MODULE_CSI, "/soc/aips-bus@2100000/csi@21c4000", 0x440, 10},
  30. {MODULE_ADC1, "/soc/aips-bus@2100000/adc@2198000", 0x440, 11},
  31. {MODULE_ENET1, "/soc/aips-bus@2100000/ethernet@2188000", 0x440, 12},
  32. {MODULE_ENET2, "/soc/aips-bus@2000000/ethernet@20b4000", 0x440, 13},
  33. {MODULE_DCP, "/soc/aips-bus@2200000/dcp@2280000", 0x440, 14},
  34. {MODULE_USB_OTG2, "/soc/aips-bus@2100000/usb@2184200", 0x440, 15},
  35. {MODULE_SAI2, "/soc/aips-bus@2000000/spba-bus@2000000/sai@202c000", 0x440, 24},
  36. {MODULE_SAI3, "/soc/aips-bus@2000000/spba-bus@2000000/sai@2030000", 0x440, 24},
  37. {MODULE_DCP_CRYPTO, "/soc/aips-bus@2200000/dcp@2280000", 0x440, 25},
  38. {MODULE_UART5, "/soc/aips-bus@2100000/serial@21f4000", 0x440, 26},
  39. {MODULE_UART6, "/soc/aips-bus@2100000/serial@21fc000", 0x440, 26},
  40. {MODULE_UART7, "/soc/aips-bus@2000000/spba-bus@2000000/serial@2018000", 0x440, 26},
  41. {MODULE_UART8, "/soc/aips-bus@2200000/serial@2288000", 0x440, 26},
  42. {MODULE_PWM5, "/soc/aips-bus@2000000/pwm@20f0000", 0x440, 27},
  43. {MODULE_PWM6, "/soc/aips-bus@2000000/pwm@20f4000", 0x440, 27},
  44. {MODULE_PWM7, "/soc/aips-bus@2000000/pwm@20f8000", 0x440, 27},
  45. {MODULE_PWM8, "/soc/aips-bus@2000000/pwm@20fc000", 0x440, 27},
  46. {MODULE_ECSPI3, "/soc/aips-bus@2000000/spba-bus@2000000/ecspi@2010000", 0x440, 28},
  47. {MODULE_ECSPI4, "/soc/aips-bus@2000000/spba-bus@2000000/ecspi@2014000", 0x440, 28},
  48. {MODULE_I2C3, "/soc/aips-bus@2100000/i2c@21a8000", 0x440, 29},
  49. {MODULE_I2C4, "/soc/aips-bus@2100000/i2c@21f8000", 0x440, 29},
  50. {MODULE_GPT2, "/soc/aips-bus@2000000/gpt@20e8000", 0x440, 30},
  51. {MODULE_EPIT2, "/soc/aips-bus@2000000/epit@20d4000", 0x440, 31},
  52. /* Paths for older imx tree: */
  53. {MODULE_TSC, "/soc/aips-bus@02000000/tsc@02040000", 0x430, 22},
  54. {MODULE_ADC2, "/soc/aips-bus@02100000/adc@0219c000", 0x430, 23},
  55. {MODULE_EPDC, "/soc/aips-bus@02200000/epdc@0228c000", 0x430, 24},
  56. {MODULE_ESAI, "/soc/aips-bus@02000000/spba-bus@02000000/esai@02024000", 0x430, 25},
  57. {MODULE_FLEXCAN1, "/soc/aips-bus@02000000/can@02090000", 0x430, 26},
  58. {MODULE_FLEXCAN2, "/soc/aips-bus@02000000/can@02094000", 0x430, 27},
  59. {MODULE_SPDIF, "/soc/aips-bus@02000000/spba-bus@02000000/spdif@02004000", 0x440, 2},
  60. {MODULE_EIM, "/soc/aips-bus@02100000/weim@021b8000", 0x440, 3},
  61. {MODULE_SD1, "/soc/aips-bus@02100000/usdhc@02190000", 0x440, 4},
  62. {MODULE_SD2, "/soc/aips-bus@02100000/usdhc@02194000", 0x440, 5},
  63. {MODULE_QSPI1, "/soc/aips-bus@02100000/qspi@021e0000", 0x440, 6},
  64. {MODULE_GPMI, "/soc/gpmi-nand@01806000", 0x440, 7},
  65. {MODULE_APBHDMA, "/soc/dma-apbh@01804000", 0x440, 7},
  66. {MODULE_LCDIF, "/soc/aips-bus@02100000/lcdif@021c8000", 0x440, 8},
  67. {MODULE_PXP, "/soc/aips-bus@02100000/pxp@021cc000", 0x440, 9},
  68. {MODULE_CSI, "/soc/aips-bus@02100000/csi@021c4000", 0x440, 10},
  69. {MODULE_ADC1, "/soc/aips-bus@02100000/adc@02198000", 0x440, 11},
  70. {MODULE_ENET1, "/soc/aips-bus@02100000/ethernet@02188000", 0x440, 12},
  71. {MODULE_ENET2, "/soc/aips-bus@02000000/ethernet@020b4000", 0x440, 13},
  72. {MODULE_DCP, "/soc/aips-bus@02200000/dcp@02280000", 0x440, 14},
  73. {MODULE_USB_OTG2, "/soc/aips-bus@02100000/usb@02184200", 0x440, 15},
  74. {MODULE_SAI2, "/soc/aips-bus@02000000/spba-bus@02000000/sai@0202c000", 0x440, 24},
  75. {MODULE_SAI3, "/soc/aips-bus@02000000/spba-bus@02000000/sai@02030000", 0x440, 24},
  76. {MODULE_DCP_CRYPTO, "/soc/aips-bus@02200000/dcp@02280000", 0x440, 25},
  77. {MODULE_UART5, "/soc/aips-bus@02100000/serial@021f4000", 0x440, 26},
  78. {MODULE_UART6, "/soc/aips-bus@02100000/serial@021fc000", 0x440, 26},
  79. {MODULE_UART7, "/soc/aips-bus@02000000/spba-bus@02000000/serial@02018000", 0x440, 26},
  80. {MODULE_UART8, "/soc/aips-bus@02200000/serial@02288000", 0x440, 26},
  81. {MODULE_PWM5, "/soc/aips-bus@02000000/pwm@020f0000", 0x440, 27},
  82. {MODULE_PWM6, "/soc/aips-bus@02000000/pwm@020f4000", 0x440, 27},
  83. {MODULE_PWM7, "/soc/aips-bus@02000000/pwm@020f8000", 0x440, 27},
  84. {MODULE_PWM8, "/soc/aips-bus@02000000/pwm@020fc000", 0x440, 27},
  85. {MODULE_ECSPI3, "/soc/aips-bus@02000000/spba-bus@02000000/ecspi@02010000", 0x440, 28},
  86. {MODULE_ECSPI4, "/soc/aips-bus@02000000/spba-bus@02000000/ecspi@02014000", 0x440, 28},
  87. {MODULE_I2C3, "/soc/aips-bus@02100000/i2c@021a8000", 0x440, 29},
  88. {MODULE_I2C4, "/soc/aips-bus@02100000/i2c@021f8000", 0x440, 29},
  89. {MODULE_GPT2, "/soc/aips-bus@02000000/gpt@020e8000", 0x440, 30},
  90. {MODULE_EPIT2, "/soc/aips-bus@02000000/epit@020d4000", 0x440, 31},
  91. #elif defined(CONFIG_MX6UL)
  92. {MODULE_TSC, "/soc/aips-bus@2000000/tsc@2040000", 0x430, 22},
  93. {MODULE_ADC2, "/soc/aips-bus@2100000/adc@219c000", 0x430, 23},
  94. {MODULE_SIM1, "/soc/aips-bus@2100000/sim@218c000", 0x430, 24},
  95. {MODULE_SIM2, "/soc/aips-bus@2100000/sim@21b4000", 0x430, 25},
  96. {MODULE_FLEXCAN1, "/soc/aips-bus@2000000/can@2090000", 0x430, 26},
  97. {MODULE_FLEXCAN2, "/soc/aips-bus@2000000/can@2094000", 0x430, 27},
  98. {MODULE_SPDIF, "/soc/aips-bus@2000000/spba-bus@2000000/spdif@2004000", 0x440, 2},
  99. {MODULE_EIM, "/soc/aips-bus@2100000/weim@21b8000", 0x440, 3},
  100. {MODULE_SD1, "/soc/aips-bus@2100000/usdhc@2190000", 0x440, 4},
  101. {MODULE_SD2, "/soc/aips-bus@2100000/usdhc@2194000", 0x440, 5},
  102. {MODULE_QSPI1, "/soc/aips-bus@2100000/qspi@21e0000", 0x440, 6},
  103. {MODULE_GPMI, "/soc/gpmi-nand@1806000", 0x440, 7},
  104. {MODULE_APBHDMA, "/soc/dma-apbh@1804000", 0x440, 7},
  105. {MODULE_LCDIF, "/soc/aips-bus@2100000/lcdif@21c8000", 0x440, 8},
  106. {MODULE_PXP, "/soc/aips-bus@2100000/pxp@21cc000", 0x440, 9},
  107. {MODULE_CSI, "/soc/aips-bus@2100000/csi@21c4000", 0x440, 10},
  108. {MODULE_ADC1, "/soc/aips-bus@2100000/adc@2198000", 0x440, 11},
  109. {MODULE_ENET1, "/soc/aips-bus@2100000/ethernet@2188000", 0x440, 12},
  110. {MODULE_ENET2, "/soc/aips-bus@2000000/ethernet@20b4000", 0x440, 13},
  111. {MODULE_CAAM, "/soc/aips-bus@2100000/caam@2140000", 0x440, 14},
  112. {MODULE_USB_OTG2, "/soc/aips-bus@2100000/usb@2184200", 0x440, 15},
  113. {MODULE_SAI2, "/soc/aips-bus@2000000/spba-bus@2000000/sai@202c000", 0x440, 24},
  114. {MODULE_SAI3, "/soc/aips-bus@2000000/spba-bus@2000000/sai@2030000", 0x440, 24},
  115. {MODULE_BEE, "/soc/aips-bus@2000000/bee@2044000", 0x440, 25},
  116. {MODULE_UART5, "/soc/aips-bus@2100000/serial@21f4000", 0x440, 26},
  117. {MODULE_UART6, "/soc/aips-bus@2100000/serial@21fc000", 0x440, 26},
  118. {MODULE_UART7, "/soc/aips-bus@2000000/spba-bus@2000000/serial@2018000", 0x440, 26},
  119. {MODULE_UART8, "/soc/aips-bus@2000000/spba-bus@2000000/serial@2024000", 0x440, 26},
  120. {MODULE_PWM5, "/soc/aips-bus@2000000/pwm@20f0000", 0x440, 27},
  121. {MODULE_PWM6, "/soc/aips-bus@2000000/pwm@20f4000", 0x440, 27},
  122. {MODULE_PWM7, "/soc/aips-bus@2000000/pwm@20f8000", 0x440, 27},
  123. {MODULE_PWM8, "/soc/aips-bus@2000000/pwm@20fc000", 0x440, 27},
  124. {MODULE_ECSPI3, "/soc/aips-bus@2000000/spba-bus@2000000/ecspi@2010000", 0x440, 28},
  125. {MODULE_ECSPI4, "/soc/aips-bus@2000000/spba-bus@2000000/ecspi@2014000", 0x440, 28},
  126. {MODULE_I2C3, "/soc/aips-bus@2100000/i2c@21a8000", 0x440, 29},
  127. {MODULE_I2C4, "/soc/aips-bus@2100000/i2c@21f8000", 0x440, 29},
  128. {MODULE_GPT2, "/soc/aips-bus@2000000/gpt@20e8000", 0x440, 30},
  129. {MODULE_EPIT2, "/soc/aips-bus@2000000/epit@20d4000", 0x440, 31},
  130. /* Paths for older imx tree: */
  131. {MODULE_TSC, "/soc/aips-bus@02000000/tsc@02040000", 0x430, 22},
  132. {MODULE_ADC2, "/soc/aips-bus@02100000/adc@0219c000", 0x430, 23},
  133. {MODULE_SIM1, "/soc/aips-bus@02100000/sim@0218c000", 0x430, 24},
  134. {MODULE_SIM2, "/soc/aips-bus@02100000/sim@021b4000", 0x430, 25},
  135. {MODULE_FLEXCAN1, "/soc/aips-bus@02000000/can@02090000", 0x430, 26},
  136. {MODULE_FLEXCAN2, "/soc/aips-bus@02000000/can@02094000", 0x430, 27},
  137. {MODULE_SPDIF, "/soc/aips-bus@02000000/spba-bus@02000000/spdif@02004000", 0x440, 2},
  138. {MODULE_EIM, "/soc/aips-bus@02100000/weim@021b8000", 0x440, 3},
  139. {MODULE_SD1, "/soc/aips-bus@02100000/usdhc@02190000", 0x440, 4},
  140. {MODULE_SD2, "/soc/aips-bus@02100000/usdhc@02194000", 0x440, 5},
  141. {MODULE_QSPI1, "/soc/aips-bus@02100000/qspi@021e0000", 0x440, 6},
  142. {MODULE_GPMI, "/soc/gpmi-nand@01806000", 0x440, 7},
  143. {MODULE_APBHDMA, "/soc/dma-apbh@01804000", 0x440, 7},
  144. {MODULE_LCDIF, "/soc/aips-bus@02100000/lcdif@021c8000", 0x440, 8},
  145. {MODULE_PXP, "/soc/aips-bus@02100000/pxp@021cc000", 0x440, 9},
  146. {MODULE_CSI, "/soc/aips-bus@02100000/csi@021c4000", 0x440, 10},
  147. {MODULE_ADC1, "/soc/aips-bus@02100000/adc@02198000", 0x440, 11},
  148. {MODULE_ENET1, "/soc/aips-bus@02100000/ethernet@02188000", 0x440, 12},
  149. {MODULE_ENET2, "/soc/aips-bus@02000000/ethernet@020b4000", 0x440, 13},
  150. {MODULE_CAAM, "/soc/aips-bus@02100000/caam@2140000", 0x440, 14},
  151. {MODULE_USB_OTG2, "/soc/aips-bus@02100000/usb@02184200", 0x440, 15},
  152. {MODULE_SAI2, "/soc/aips-bus@02000000/spba-bus@02000000/sai@0202c000", 0x440, 24},
  153. {MODULE_SAI3, "/soc/aips-bus@02000000/spba-bus@02000000/sai@02030000", 0x440, 24},
  154. {MODULE_BEE, "/soc/aips-bus@02000000/bee@02044000", 0x440, 25},
  155. {MODULE_UART5, "/soc/aips-bus@02100000/serial@021f4000", 0x440, 26},
  156. {MODULE_UART6, "/soc/aips-bus@02100000/serial@021fc000", 0x440, 26},
  157. {MODULE_UART7, "/soc/aips-bus@02000000/spba-bus@02000000/serial@02018000", 0x440, 26},
  158. {MODULE_UART8, "/soc/aips-bus@02000000/spba-bus@02000000/serial@02024000", 0x440, 26},
  159. {MODULE_PWM5, "/soc/aips-bus@02000000/pwm@020f0000", 0x440, 27},
  160. {MODULE_PWM6, "/soc/aips-bus@02000000/pwm@020f4000", 0x440, 27},
  161. {MODULE_PWM7, "/soc/aips-bus@02000000/pwm@020f8000", 0x440, 27},
  162. {MODULE_PWM8, "/soc/aips-bus@02000000/pwm@020fc000", 0x440, 27},
  163. {MODULE_ECSPI3, "/soc/aips-bus@02000000/spba-bus@02000000/ecspi@02010000", 0x440, 28},
  164. {MODULE_ECSPI4, "/soc/aips-bus@02000000/spba-bus@02000000/ecspi@02014000", 0x440, 28},
  165. {MODULE_I2C3, "/soc/aips-bus@02100000/i2c@021a8000", 0x440, 29},
  166. {MODULE_I2C4, "/soc/aips-bus@02100000/i2c@021f8000", 0x440, 29},
  167. {MODULE_GPT2, "/soc/aips-bus@02000000/gpt@020e8000", 0x440, 30},
  168. {MODULE_EPIT2, "/soc/aips-bus@02000000/epit@020d4000", 0x440, 31},
  169. #endif
  170. };
  171. u32 check_module_fused(enum fuse_module_type module)
  172. {
  173. u32 i, reg;
  174. for (i = 0; i < ARRAY_SIZE(mx6_fuse_descs); i++) {
  175. if (mx6_fuse_descs[i].module == module) {
  176. reg = readl(OCOTP_BASE_ADDR +
  177. mx6_fuse_descs[i].fuse_word_offset);
  178. if (reg & BIT(mx6_fuse_descs[i].fuse_bit_offset))
  179. return 1; /* disabled */
  180. else
  181. return 0; /* enabled */
  182. }
  183. }
  184. return 0; /* Not has a fuse, always enabled */
  185. }
  186. #ifdef CONFIG_OF_SYSTEM_SETUP
  187. int ft_system_setup(void *blob, struct bd_info *bd)
  188. {
  189. const char *status = "disabled";
  190. u32 i, reg;
  191. int rc, off;
  192. for (i = 0; i < ARRAY_SIZE(mx6_fuse_descs); i++) {
  193. reg = readl(OCOTP_BASE_ADDR +
  194. mx6_fuse_descs[i].fuse_word_offset);
  195. if (reg & BIT(mx6_fuse_descs[i].fuse_bit_offset)) {
  196. off = fdt_path_offset(blob,
  197. mx6_fuse_descs[i].node_path);
  198. if (off < 0)
  199. continue; /* Not found, skip it */
  200. add_status:
  201. rc = fdt_setprop(blob, nodeoff, "status", status,
  202. strlen(status) + 1);
  203. if (rc) {
  204. if (rc == -FDT_ERR_NOSPACE) {
  205. rc = fdt_increase_size(blob, 512);
  206. if (!rc)
  207. goto add_status;
  208. }
  209. printf("Unable to update property %s:%s, err=%s\n", mx6_fuse_descs[i].node_path, "status", fdt_strerror(rc));
  210. } else {
  211. printf("Modify %s disabled\n", mx6_fuse_descs[i].node_path);
  212. }
  213. }
  214. }
  215. return 0;
  216. }
  217. #endif
  218. u32 esdhc_fused(ulong base_addr)
  219. {
  220. switch (base_addr) {
  221. case USDHC1_BASE_ADDR:
  222. return check_module_fused(MODULE_SD1);
  223. case USDHC2_BASE_ADDR:
  224. return check_module_fused(MODULE_SD2);
  225. #ifdef USDHC3_BASE_ADDR
  226. case USDHC3_BASE_ADDR:
  227. return check_module_fused(MODULE_SD3);
  228. #endif
  229. #ifdef USDHC4_BASE_ADDR
  230. case USDHC4_BASE_ADDR:
  231. return check_module_fused(MODULE_SD4);
  232. #endif
  233. default:
  234. return 0;
  235. }
  236. }
  237. u32 ecspi_fused(ulong base_addr)
  238. {
  239. switch (base_addr) {
  240. case ECSPI1_BASE_ADDR:
  241. return check_module_fused(MODULE_ECSPI1);
  242. case ECSPI2_BASE_ADDR:
  243. return check_module_fused(MODULE_ECSPI2);
  244. case ECSPI3_BASE_ADDR:
  245. return check_module_fused(MODULE_ECSPI3);
  246. case ECSPI4_BASE_ADDR:
  247. return check_module_fused(MODULE_ECSPI4);
  248. #ifdef ECSPI5_BASE_ADDR
  249. case ECSPI5_BASE_ADDR:
  250. return check_module_fused(MODULE_ECSPI5);
  251. #endif
  252. default:
  253. return 0;
  254. }
  255. }
  256. u32 usb_fused(ulong base_addr)
  257. {
  258. int i = (base_addr - USB_BASE_ADDR) / 0x200;
  259. return check_module_fused(MODULE_USB_OTG1 + i);
  260. }
  261. u32 qspi_fused(ulong base_addr)
  262. {
  263. switch (base_addr) {
  264. #ifdef QSPI1_BASE_ADDR
  265. case QSPI1_BASE_ADDR:
  266. return check_module_fused(MODULE_QSPI1);
  267. #endif
  268. #ifdef QSPI2_BASE_ADDR
  269. case QSPI2_BASE_ADDR:
  270. return check_module_fused(MODULE_QSPI2);
  271. #endif
  272. default:
  273. return 0;
  274. }
  275. }
  276. u32 i2c_fused(ulong base_addr)
  277. {
  278. switch (base_addr) {
  279. case I2C1_BASE_ADDR:
  280. return check_module_fused(MODULE_I2C1);
  281. case I2C2_BASE_ADDR:
  282. return check_module_fused(MODULE_I2C2);
  283. case I2C3_BASE_ADDR:
  284. return check_module_fused(MODULE_I2C3);
  285. #ifdef I2C4_BASE_ADDR
  286. case I2C4_BASE_ADDR:
  287. return check_module_fused(MODULE_I2C4);
  288. #endif
  289. }
  290. return 0;
  291. }
  292. u32 enet_fused(ulong base_addr)
  293. {
  294. switch (base_addr) {
  295. case ENET_BASE_ADDR:
  296. return check_module_fused(MODULE_ENET1);
  297. #ifdef ENET2_BASE_ADDR
  298. case ENET2_BASE_ADDR:
  299. return check_module_fused(MODULE_ENET2);
  300. #endif
  301. default:
  302. return 0;
  303. }
  304. }