Kconfig.debug 26 KB

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  1. menu "Kernel hacking"
  2. source "lib/Kconfig.debug"
  3. config STRICT_DEVMEM
  4. bool "Filter access to /dev/mem"
  5. depends on MMU
  6. ---help---
  7. If this option is disabled, you allow userspace (root) access to all
  8. of memory, including kernel and userspace memory. Accidental
  9. access to this is obviously disastrous, but specific access can
  10. be used by people debugging the kernel.
  11. If this option is switched on, the /dev/mem file only allows
  12. userspace access to memory mapped peripherals.
  13. If in doubt, say Y.
  14. # RMK wants arm kernels compiled with frame pointers or stack unwinding.
  15. # If you know what you are doing and are willing to live without stack
  16. # traces, you can get a slightly smaller kernel by setting this option to
  17. # n, but then RMK will have to kill you ;).
  18. config FRAME_POINTER
  19. bool
  20. depends on !THUMB2_KERNEL
  21. default y if !ARM_UNWIND || FUNCTION_GRAPH_TRACER
  22. help
  23. If you say N here, the resulting kernel will be slightly smaller and
  24. faster. However, if neither FRAME_POINTER nor ARM_UNWIND are enabled,
  25. when a problem occurs with the kernel, the information that is
  26. reported is severely limited.
  27. config ARM_UNWIND
  28. bool "Enable stack unwinding support (EXPERIMENTAL)"
  29. depends on AEABI
  30. default y
  31. help
  32. This option enables stack unwinding support in the kernel
  33. using the information automatically generated by the
  34. compiler. The resulting kernel image is slightly bigger but
  35. the performance is not affected. Currently, this feature
  36. only works with EABI compilers. If unsure say Y.
  37. config OLD_MCOUNT
  38. bool
  39. depends on FUNCTION_TRACER && FRAME_POINTER
  40. default y
  41. config DEBUG_USER
  42. bool "Verbose user fault messages"
  43. help
  44. When a user program crashes due to an exception, the kernel can
  45. print a brief message explaining what the problem was. This is
  46. sometimes helpful for debugging but serves no purpose on a
  47. production system. Most people should say N here.
  48. In addition, you need to pass user_debug=N on the kernel command
  49. line to enable this feature. N consists of the sum of:
  50. 1 - undefined instruction events
  51. 2 - system calls
  52. 4 - invalid data aborts
  53. 8 - SIGSEGV faults
  54. 16 - SIGBUS faults
  55. # These options are only for real kernel hackers who want to get their hands dirty.
  56. config DEBUG_LL
  57. bool "Kernel low-level debugging functions (read help!)"
  58. depends on DEBUG_KERNEL
  59. help
  60. Say Y here to include definitions of printascii, printch, printhex
  61. in the kernel. This is helpful if you are debugging code that
  62. executes before the console is initialized.
  63. Note that selecting this option will limit the kernel to a single
  64. UART definition, as specified below. Attempting to boot the kernel
  65. image on a different platform *will not work*, so this option should
  66. not be enabled for kernels that are intended to be portable.
  67. choice
  68. prompt "Kernel low-level debugging port"
  69. depends on DEBUG_LL
  70. config AT91_DEBUG_LL_DBGU0
  71. bool "Kernel low-level debugging on rm9200, 9260/9g20, 9261/9g10 and 9rl"
  72. depends on HAVE_AT91_DBGU0
  73. config AT91_DEBUG_LL_DBGU1
  74. bool "Kernel low-level debugging on 9263 and 9g45"
  75. depends on HAVE_AT91_DBGU1
  76. config DEBUG_BCM2835
  77. bool "Kernel low-level debugging on BCM2835 PL011 UART"
  78. depends on ARCH_BCM2835
  79. config DEBUG_CLPS711X_UART1
  80. bool "Kernel low-level debugging messages via UART1"
  81. depends on ARCH_CLPS711X
  82. help
  83. Say Y here if you want the debug print routines to direct
  84. their output to the first serial port on these devices.
  85. config DEBUG_CLPS711X_UART2
  86. bool "Kernel low-level debugging messages via UART2"
  87. depends on ARCH_CLPS711X
  88. help
  89. Say Y here if you want the debug print routines to direct
  90. their output to the second serial port on these devices.
  91. config DEBUG_CNS3XXX
  92. bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx"
  93. depends on ARCH_CNS3XXX
  94. help
  95. Say Y here if you want the debug print routines to direct
  96. their output to the CNS3xxx UART0.
  97. config DEBUG_DAVINCI_DA8XX_UART1
  98. bool "Kernel low-level debugging on DaVinci DA8XX using UART1"
  99. depends on ARCH_DAVINCI_DA8XX
  100. help
  101. Say Y here if you want the debug print routines to direct
  102. their output to UART1 serial port on DaVinci DA8XX devices.
  103. config DEBUG_DAVINCI_DA8XX_UART2
  104. bool "Kernel low-level debugging on DaVinci DA8XX using UART2"
  105. depends on ARCH_DAVINCI_DA8XX
  106. help
  107. Say Y here if you want the debug print routines to direct
  108. their output to UART2 serial port on DaVinci DA8XX devices.
  109. config DEBUG_DAVINCI_DMx_UART0
  110. bool "Kernel low-level debugging on DaVinci DMx using UART0"
  111. depends on ARCH_DAVINCI_DMx
  112. help
  113. Say Y here if you want the debug print routines to direct
  114. their output to UART0 serial port on DaVinci DMx devices.
  115. config DEBUG_DAVINCI_TNETV107X_UART1
  116. bool "Kernel low-level debugging on DaVinci TNETV107x using UART1"
  117. depends on ARCH_DAVINCI_TNETV107X
  118. help
  119. Say Y here if you want the debug print routines to direct
  120. their output to UART1 serial port on DaVinci TNETV107X
  121. devices.
  122. config DEBUG_ZYNQ_UART0
  123. bool "Kernel low-level debugging on Xilinx Zynq using UART0"
  124. depends on ARCH_ZYNQ
  125. help
  126. Say Y here if you want the debug print routines to direct
  127. their output to UART0 on the Zynq platform.
  128. config DEBUG_ZYNQ_UART1
  129. bool "Kernel low-level debugging on Xilinx Zynq using UART1"
  130. depends on ARCH_ZYNQ
  131. help
  132. Say Y here if you want the debug print routines to direct
  133. their output to UART1 on the Zynq platform.
  134. If you have a ZC702 board and want early boot messages to
  135. appear on the USB serial adaptor, select this option.
  136. config DEBUG_DC21285_PORT
  137. bool "Kernel low-level debugging messages via footbridge serial port"
  138. depends on FOOTBRIDGE
  139. help
  140. Say Y here if you want the debug print routines to direct
  141. their output to the serial port in the DC21285 (Footbridge).
  142. config DEBUG_FOOTBRIDGE_COM1
  143. bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
  144. depends on FOOTBRIDGE
  145. help
  146. Say Y here if you want the debug print routines to direct
  147. their output to the 8250 at PCI COM1.
  148. config DEBUG_HIGHBANK_UART
  149. bool "Kernel low-level debugging messages via Highbank UART"
  150. depends on ARCH_HIGHBANK
  151. help
  152. Say Y here if you want the debug print routines to direct
  153. their output to the UART on Highbank based devices.
  154. config DEBUG_IMX1_UART
  155. bool "i.MX1 Debug UART"
  156. depends on SOC_IMX1
  157. help
  158. Say Y here if you want kernel low-level debugging support
  159. on i.MX1.
  160. config DEBUG_IMX23_UART
  161. bool "i.MX23 Debug UART"
  162. depends on SOC_IMX23
  163. help
  164. Say Y here if you want kernel low-level debugging support
  165. on i.MX23.
  166. config DEBUG_IMX25_UART
  167. bool "i.MX25 Debug UART"
  168. depends on SOC_IMX25
  169. help
  170. Say Y here if you want kernel low-level debugging support
  171. on i.MX25.
  172. config DEBUG_IMX21_IMX27_UART
  173. bool "i.MX21 and i.MX27 Debug UART"
  174. depends on SOC_IMX21 || SOC_IMX27
  175. help
  176. Say Y here if you want kernel low-level debugging support
  177. on i.MX21 or i.MX27.
  178. config DEBUG_IMX28_UART
  179. bool "i.MX28 Debug UART"
  180. depends on SOC_IMX28
  181. help
  182. Say Y here if you want kernel low-level debugging support
  183. on i.MX28.
  184. config DEBUG_IMX31_UART
  185. bool "i.MX31 Debug UART"
  186. depends on SOC_IMX31
  187. help
  188. Say Y here if you want kernel low-level debugging support
  189. on i.MX31.
  190. config DEBUG_IMX35_UART
  191. bool "i.MX35 Debug UART"
  192. depends on SOC_IMX35
  193. help
  194. Say Y here if you want kernel low-level debugging support
  195. on i.MX35.
  196. config DEBUG_IMX51_UART
  197. bool "i.MX51 Debug UART"
  198. depends on SOC_IMX51
  199. help
  200. Say Y here if you want kernel low-level debugging support
  201. on i.MX51.
  202. config DEBUG_IMX53_UART
  203. bool "i.MX53 Debug UART"
  204. depends on SOC_IMX53
  205. help
  206. Say Y here if you want kernel low-level debugging support
  207. on i.MX53.
  208. config DEBUG_IMX6Q_UART
  209. bool "i.MX6Q/DL Debug UART"
  210. depends on SOC_IMX6Q
  211. help
  212. Say Y here if you want kernel low-level debugging support
  213. on i.MX6Q/DL.
  214. config DEBUG_IMX6SL_UART
  215. bool "i.MX6SL Debug UART"
  216. depends on SOC_IMX6SL
  217. help
  218. Say Y here if you want kernel low-level debugging support
  219. on i.MX6SL.
  220. config DEBUG_KEYSTONE_UART0
  221. bool "Kernel low-level debugging on KEYSTONE2 using UART0"
  222. depends on ARCH_KEYSTONE
  223. help
  224. Say Y here if you want the debug print routines to direct
  225. their output to UART0 serial port on KEYSTONE2 devices.
  226. config DEBUG_KEYSTONE_UART1
  227. bool "Kernel low-level debugging on KEYSTONE2 using UART1"
  228. depends on ARCH_KEYSTONE
  229. help
  230. Say Y here if you want the debug print routines to direct
  231. their output to UART1 serial port on KEYSTONE2 devices.
  232. config DEBUG_MMP_UART2
  233. bool "Kernel low-level debugging message via MMP UART2"
  234. depends on ARCH_MMP
  235. help
  236. Say Y here if you want kernel low-level debugging support
  237. on MMP UART2.
  238. config DEBUG_MMP_UART3
  239. bool "Kernel low-level debugging message via MMP UART3"
  240. depends on ARCH_MMP
  241. help
  242. Say Y here if you want kernel low-level debugging support
  243. on MMP UART3.
  244. config DEBUG_MSM_UART1
  245. bool "Kernel low-level debugging messages via MSM UART1"
  246. depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
  247. help
  248. Say Y here if you want the debug print routines to direct
  249. their output to the first serial port on MSM devices.
  250. config DEBUG_MSM_UART2
  251. bool "Kernel low-level debugging messages via MSM UART2"
  252. depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
  253. help
  254. Say Y here if you want the debug print routines to direct
  255. their output to the second serial port on MSM devices.
  256. config DEBUG_MSM_UART3
  257. bool "Kernel low-level debugging messages via MSM UART3"
  258. depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
  259. help
  260. Say Y here if you want the debug print routines to direct
  261. their output to the third serial port on MSM devices.
  262. config DEBUG_MSM8660_UART
  263. bool "Kernel low-level debugging messages via MSM 8660 UART"
  264. depends on ARCH_MSM8X60
  265. select MSM_HAS_DEBUG_UART_HS
  266. help
  267. Say Y here if you want the debug print routines to direct
  268. their output to the serial port on MSM 8660 devices.
  269. config DEBUG_MSM8960_UART
  270. bool "Kernel low-level debugging messages via MSM 8960 UART"
  271. depends on ARCH_MSM8960
  272. select MSM_HAS_DEBUG_UART_HS
  273. help
  274. Say Y here if you want the debug print routines to direct
  275. their output to the serial port on MSM 8960 devices.
  276. config DEBUG_MVEBU_UART
  277. bool "Kernel low-level debugging messages via MVEBU UART (old bootloaders)"
  278. depends on ARCH_MVEBU
  279. help
  280. Say Y here if you want kernel low-level debugging support
  281. on MVEBU based platforms.
  282. This option should be used with the old bootloaders
  283. that left the internal registers mapped at
  284. 0xd0000000. As of today, this is the case on
  285. platforms such as the Globalscale Mirabox or the
  286. Plathome OpenBlocks AX3, when using the original
  287. bootloader.
  288. If the wrong DEBUG_MVEBU_UART* option is selected,
  289. when u-boot hands over to the kernel, the system
  290. silently crashes, with no serial output at all.
  291. config DEBUG_MVEBU_UART_ALTERNATE
  292. bool "Kernel low-level debugging messages via MVEBU UART (new bootloaders)"
  293. depends on ARCH_MVEBU
  294. help
  295. Say Y here if you want kernel low-level debugging support
  296. on MVEBU based platforms.
  297. This option should be used with the new bootloaders
  298. that remap the internal registers at 0xf1000000.
  299. If the wrong DEBUG_MVEBU_UART* option is selected,
  300. when u-boot hands over to the kernel, the system
  301. silently crashes, with no serial output at all.
  302. config DEBUG_NOMADIK_UART
  303. bool "Kernel low-level debugging messages via NOMADIK UART"
  304. depends on ARCH_NOMADIK
  305. help
  306. Say Y here if you want kernel low-level debugging support
  307. on NOMADIK based platforms.
  308. config DEBUG_NSPIRE_CLASSIC_UART
  309. bool "Kernel low-level debugging via TI-NSPIRE 8250 UART"
  310. depends on ARCH_NSPIRE
  311. help
  312. Say Y here if you want kernel low-level debugging support
  313. on TI-NSPIRE classic models.
  314. config DEBUG_NSPIRE_CX_UART
  315. bool "Kernel low-level debugging via TI-NSPIRE PL011 UART"
  316. depends on ARCH_NSPIRE
  317. help
  318. Say Y here if you want kernel low-level debugging support
  319. on TI-NSPIRE CX models.
  320. config DEBUG_OMAP2PLUS_UART
  321. bool "Kernel low-level debugging messages via OMAP2PLUS UART"
  322. depends on ARCH_OMAP2PLUS
  323. help
  324. Say Y here if you want kernel low-level debugging support
  325. on OMAP2PLUS based platforms.
  326. config DEBUG_PICOXCELL_UART
  327. depends on ARCH_PICOXCELL
  328. bool "Use PicoXcell UART for low-level debug"
  329. help
  330. Say Y here if you want kernel low-level debugging support
  331. on PicoXcell based platforms.
  332. config DEBUG_PXA_UART1
  333. depends on ARCH_PXA
  334. bool "Use PXA UART1 for low-level debug"
  335. help
  336. Say Y here if you want kernel low-level debugging support
  337. on PXA UART1.
  338. config DEBUG_REALVIEW_STD_PORT
  339. bool "RealView Default UART"
  340. depends on ARCH_REALVIEW
  341. help
  342. Say Y here if you want the debug print routines to direct
  343. their output to the serial port on RealView EB, PB11MP, PBA8
  344. and PBX platforms.
  345. config DEBUG_REALVIEW_PB1176_PORT
  346. bool "RealView PB1176 UART"
  347. depends on MACH_REALVIEW_PB1176
  348. help
  349. Say Y here if you want the debug print routines to direct
  350. their output to the standard serial port on the RealView
  351. PB1176 platform.
  352. config DEBUG_ROCKCHIP_UART
  353. bool "Kernel low-level debugging messages via Rockchip UART"
  354. depends on ARCH_ROCKCHIP
  355. help
  356. Say Y here if you want kernel low-level debugging support
  357. on Rockchip based platforms.
  358. config DEBUG_S3C_UART0
  359. depends on PLAT_SAMSUNG
  360. select DEBUG_EXYNOS_UART if ARCH_EXYNOS
  361. bool "Use S3C UART 0 for low-level debug"
  362. help
  363. Say Y here if you want the debug print routines to direct
  364. their output to UART 0. The port must have been initialised
  365. by the boot-loader before use.
  366. The uncompressor code port configuration is now handled
  367. by CONFIG_S3C_LOWLEVEL_UART_PORT.
  368. config DEBUG_S3C_UART1
  369. depends on PLAT_SAMSUNG
  370. select DEBUG_EXYNOS_UART if ARCH_EXYNOS
  371. bool "Use S3C UART 1 for low-level debug"
  372. help
  373. Say Y here if you want the debug print routines to direct
  374. their output to UART 1. The port must have been initialised
  375. by the boot-loader before use.
  376. The uncompressor code port configuration is now handled
  377. by CONFIG_S3C_LOWLEVEL_UART_PORT.
  378. config DEBUG_S3C_UART2
  379. depends on PLAT_SAMSUNG
  380. select DEBUG_EXYNOS_UART if ARCH_EXYNOS
  381. bool "Use S3C UART 2 for low-level debug"
  382. help
  383. Say Y here if you want the debug print routines to direct
  384. their output to UART 2. The port must have been initialised
  385. by the boot-loader before use.
  386. The uncompressor code port configuration is now handled
  387. by CONFIG_S3C_LOWLEVEL_UART_PORT.
  388. config DEBUG_S3C_UART3
  389. depends on PLAT_SAMSUNG && ARCH_EXYNOS
  390. select DEBUG_EXYNOS_UART
  391. bool "Use S3C UART 3 for low-level debug"
  392. help
  393. Say Y here if you want the debug print routines to direct
  394. their output to UART 3. The port must have been initialised
  395. by the boot-loader before use.
  396. The uncompressor code port configuration is now handled
  397. by CONFIG_S3C_LOWLEVEL_UART_PORT.
  398. config DEBUG_SOCFPGA_UART
  399. depends on ARCH_SOCFPGA
  400. bool "Use SOCFPGA UART for low-level debug"
  401. help
  402. Say Y here if you want kernel low-level debugging support
  403. on SOCFPGA based platforms.
  404. config DEBUG_SUNXI_UART0
  405. bool "Kernel low-level debugging messages via sunXi UART0"
  406. depends on ARCH_SUNXI
  407. help
  408. Say Y here if you want kernel low-level debugging support
  409. on Allwinner A1X based platforms on the UART0.
  410. config DEBUG_SUNXI_UART1
  411. bool "Kernel low-level debugging messages via sunXi UART1"
  412. depends on ARCH_SUNXI
  413. help
  414. Say Y here if you want kernel low-level debugging support
  415. on Allwinner A1X based platforms on the UART1.
  416. config DEBUG_TEGRA_UART
  417. depends on ARCH_TEGRA
  418. bool "Use Tegra UART for low-level debug"
  419. help
  420. Say Y here if you want kernel low-level debugging support
  421. on Tegra based platforms.
  422. config DEBUG_SIRFPRIMA2_UART1
  423. bool "Kernel low-level debugging messages via SiRFprimaII UART1"
  424. depends on ARCH_PRIMA2
  425. help
  426. Say Y here if you want the debug print routines to direct
  427. their output to the uart1 port on SiRFprimaII devices.
  428. config DEBUG_SIRFMARCO_UART1
  429. bool "Kernel low-level debugging messages via SiRFmarco UART1"
  430. depends on ARCH_MARCO
  431. help
  432. Say Y here if you want the debug print routines to direct
  433. their output to the uart1 port on SiRFmarco devices.
  434. config DEBUG_STI_UART
  435. depends on ARCH_STI
  436. bool "Use StiH415/416 ASC for low-level debug"
  437. help
  438. Say Y here if you want kernel low-level debugging support
  439. on StiH415/416 based platforms like B2000, B2020.
  440. It support UART2 and SBC_UART1.
  441. If unsure, say N.
  442. config DEBUG_U300_UART
  443. bool "Kernel low-level debugging messages via U300 UART0"
  444. depends on ARCH_U300
  445. help
  446. Say Y here if you want the debug print routines to direct
  447. their output to the uart port on U300 devices.
  448. config DEBUG_UX500_UART
  449. depends on ARCH_U8500
  450. bool "Use Ux500 UART for low-level debug"
  451. help
  452. Say Y here if you want kernel low-level debugging support
  453. on Ux500 based platforms.
  454. config DEBUG_VEXPRESS_UART0_DETECT
  455. bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
  456. depends on ARCH_VEXPRESS && CPU_CP15_MMU
  457. help
  458. This option enables a simple heuristic which tries to determine
  459. the motherboard's memory map variant (original or RS1) and then
  460. choose the relevant UART0 base address.
  461. Note that this will only work with standard A-class core tiles,
  462. and may fail with non-standard SMM or custom software models.
  463. config DEBUG_VEXPRESS_UART0_CA9
  464. bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)"
  465. depends on ARCH_VEXPRESS
  466. help
  467. This option selects UART0 at 0x10009000. Except for custom models,
  468. this applies only to the V2P-CA9 tile.
  469. config DEBUG_VEXPRESS_UART0_RS1
  470. bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)"
  471. depends on ARCH_VEXPRESS
  472. help
  473. This option selects UART0 at 0x1c090000. This applies to most
  474. of the tiles using the RS1 memory map, including all new A-class
  475. core tiles, FPGA-based SMMs and software models.
  476. config DEBUG_VEXPRESS_UART0_CRX
  477. bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)"
  478. depends on ARCH_VEXPRESS && !MMU
  479. help
  480. This option selects UART0 at 0xb0090000. This is appropriate for
  481. Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
  482. config DEBUG_VT8500_UART0
  483. bool "Use UART0 on VIA/Wondermedia SoCs"
  484. depends on ARCH_VT8500
  485. help
  486. This option selects UART0 on VIA/Wondermedia System-on-a-chip
  487. devices, including VT8500, WM8505, WM8650 and WM8850.
  488. config DEBUG_LL_UART_NONE
  489. bool "No low-level debugging UART"
  490. depends on !ARCH_MULTIPLATFORM
  491. help
  492. Say Y here if your platform doesn't provide a UART option
  493. below. This relies on your platform choosing the right UART
  494. definition internally in order for low-level debugging to
  495. work.
  496. config DEBUG_ICEDCC
  497. bool "Kernel low-level debugging via EmbeddedICE DCC channel"
  498. help
  499. Say Y here if you want the debug print routines to direct
  500. their output to the EmbeddedICE macrocell's DCC channel using
  501. co-processor 14. This is known to work on the ARM9 style ICE
  502. channel and on the XScale with the PEEDI.
  503. Note that the system will appear to hang during boot if there
  504. is nothing connected to read from the DCC.
  505. config DEBUG_SEMIHOSTING
  506. bool "Kernel low-level debug output via semihosting I/O"
  507. help
  508. Semihosting enables code running on an ARM target to use
  509. the I/O facilities on a host debugger/emulator through a
  510. simple SVC call. The host debugger or emulator must have
  511. semihosting enabled for the special svc call to be trapped
  512. otherwise the kernel will crash.
  513. This is known to work with OpenOCD, as well as
  514. ARM's Fast Models, or any other controlling environment
  515. that implements semihosting.
  516. For more details about semihosting, please see
  517. chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
  518. endchoice
  519. config DEBUG_EXYNOS_UART
  520. bool
  521. config DEBUG_IMX_UART_PORT
  522. int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \
  523. DEBUG_IMX25_UART || \
  524. DEBUG_IMX21_IMX27_UART || \
  525. DEBUG_IMX31_UART || \
  526. DEBUG_IMX35_UART || \
  527. DEBUG_IMX51_UART || \
  528. DEBUG_IMX53_UART || \
  529. DEBUG_IMX6Q_UART || \
  530. DEBUG_IMX6SL_UART
  531. default 1
  532. depends on ARCH_MXC
  533. help
  534. Choose UART port on which kernel low-level debug messages
  535. should be output.
  536. choice
  537. prompt "Low-level debug console UART"
  538. depends on DEBUG_OMAP2PLUS_UART
  539. config DEBUG_OMAP2UART1
  540. bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
  541. help
  542. This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
  543. omap3 torpedo and 3530 lv som.
  544. config DEBUG_OMAP2UART2
  545. bool "OMAP2/3/4 UART2"
  546. config DEBUG_OMAP2UART3
  547. bool "OMAP2 UART3 (n8x0)"
  548. config DEBUG_OMAP3UART3
  549. bool "OMAP3 UART3 (most omap3 boards)"
  550. help
  551. This covers at least cm_t3x, beagle, crane, devkit8000,
  552. igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
  553. and 3517evm.
  554. config DEBUG_OMAP4UART3
  555. bool "OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
  556. config DEBUG_OMAP3UART4
  557. bool "OMAP36XX UART4"
  558. config DEBUG_OMAP4UART4
  559. bool "OMAP4/5 UART4"
  560. config DEBUG_TI81XXUART1
  561. bool "TI81XX UART1 (ti8148evm)"
  562. config DEBUG_TI81XXUART2
  563. bool "TI81XX UART2"
  564. config DEBUG_TI81XXUART3
  565. bool "TI81XX UART3 (ti8168evm)"
  566. config DEBUG_AM33XXUART1
  567. bool "AM33XX UART1"
  568. config DEBUG_ZOOM_UART
  569. bool "Zoom2/3 UART"
  570. endchoice
  571. choice
  572. prompt "Low-level debug console UART"
  573. depends on DEBUG_ROCKCHIP_UART
  574. config DEBUG_RK29_UART0
  575. bool "RK29 UART0"
  576. config DEBUG_RK29_UART1
  577. bool "RK29 UART1"
  578. config DEBUG_RK29_UART2
  579. bool "RK29 UART2"
  580. config DEBUG_RK3X_UART0
  581. bool "RK3X UART0"
  582. config DEBUG_RK3X_UART1
  583. bool "RK3X UART1"
  584. config DEBUG_RK3X_UART2
  585. bool "RK3X UART2"
  586. config DEBUG_RK3X_UART3
  587. bool "RK3X UART3"
  588. endchoice
  589. choice
  590. prompt "Low-level debug console UART"
  591. depends on DEBUG_LL && DEBUG_TEGRA_UART
  592. config TEGRA_DEBUG_UART_AUTO_ODMDATA
  593. bool "Via ODMDATA"
  594. help
  595. Automatically determines which UART to use for low-level debug based
  596. on the ODMDATA value. This value is part of the BCT, and is written
  597. to the boot memory device using nvflash, or other flashing tool.
  598. When bits 19:18 are 3, then bits 17:15 indicate which UART to use;
  599. 0/1/2/3/4 are UART A/B/C/D/E.
  600. config TEGRA_DEBUG_UARTA
  601. bool "UART A"
  602. config TEGRA_DEBUG_UARTB
  603. bool "UART B"
  604. config TEGRA_DEBUG_UARTC
  605. bool "UART C"
  606. config TEGRA_DEBUG_UARTD
  607. bool "UART D"
  608. config TEGRA_DEBUG_UARTE
  609. bool "UART E"
  610. endchoice
  611. choice
  612. prompt "Low-level debug console UART"
  613. depends on DEBUG_LL && DEBUG_STI_UART
  614. config STIH41X_DEBUG_ASC2
  615. bool "ASC2 UART"
  616. help
  617. Say Y here if you want kernel low-level debugging support
  618. on STiH415/416 based platforms like b2000, which has
  619. default UART wired up to ASC2.
  620. If unsure, say N.
  621. config STIH41X_DEBUG_SBC_ASC1
  622. bool "SBC ASC1 UART"
  623. help
  624. Say Y here if you want kernel low-level debugging support
  625. on STiH415/416 based platforms like b2020. which has
  626. default UART wired up to SBC ASC1.
  627. If unsure, say N.
  628. endchoice
  629. config DEBUG_LL_INCLUDE
  630. string
  631. default "debug/bcm2835.S" if DEBUG_BCM2835
  632. default "debug/cns3xxx.S" if DEBUG_CNS3XXX
  633. default "debug/exynos.S" if DEBUG_EXYNOS_UART
  634. default "debug/highbank.S" if DEBUG_HIGHBANK_UART
  635. default "debug/icedcc.S" if DEBUG_ICEDCC
  636. default "debug/imx.S" if DEBUG_IMX1_UART || \
  637. DEBUG_IMX25_UART || \
  638. DEBUG_IMX21_IMX27_UART || \
  639. DEBUG_IMX31_UART || \
  640. DEBUG_IMX35_UART || \
  641. DEBUG_IMX51_UART || \
  642. DEBUG_IMX53_UART ||\
  643. DEBUG_IMX6Q_UART || \
  644. DEBUG_IMX6SL_UART
  645. default "debug/keystone.S" if DEBUG_KEYSTONE_UART0 || \
  646. DEBUG_KEYSTONE_UART1
  647. default "debug/mvebu.S" if DEBUG_MVEBU_UART || \
  648. DEBUG_MVEBU_UART_ALTERNATE
  649. default "debug/mxs.S" if DEBUG_IMX23_UART || DEBUG_IMX28_UART
  650. default "debug/nomadik.S" if DEBUG_NOMADIK_UART
  651. default "debug/nspire.S" if DEBUG_NSPIRE_CX_UART || \
  652. DEBUG_NSPIRE_CLASSIC_UART
  653. default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
  654. default "debug/picoxcell.S" if DEBUG_PICOXCELL_UART
  655. default "debug/pxa.S" if DEBUG_PXA_UART1 || DEBUG_MMP_UART2 || \
  656. DEBUG_MMP_UART3
  657. default "debug/rockchip.S" if DEBUG_ROCKCHIP_UART
  658. default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1 || DEBUG_SIRFMARCO_UART1
  659. default "debug/socfpga.S" if DEBUG_SOCFPGA_UART
  660. default "debug/sti.S" if DEBUG_STI_UART
  661. default "debug/sunxi.S" if DEBUG_SUNXI_UART0 || DEBUG_SUNXI_UART1
  662. default "debug/tegra.S" if DEBUG_TEGRA_UART
  663. default "debug/u300.S" if DEBUG_U300_UART
  664. default "debug/ux500.S" if DEBUG_UX500_UART
  665. default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT || \
  666. DEBUG_VEXPRESS_UART0_CA9 || DEBUG_VEXPRESS_UART0_RS1 || \
  667. DEBUG_VEXPRESS_UART0_CRX
  668. default "debug/vt8500.S" if DEBUG_VT8500_UART0
  669. default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
  670. default "mach/debug-macro.S"
  671. config DEBUG_UNCOMPRESS
  672. bool
  673. depends on ARCH_MULTIPLATFORM
  674. default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
  675. !DEBUG_TEGRA_UART
  676. help
  677. This option influences the normal decompressor output for
  678. multiplatform kernels. Normally, multiplatform kernels disable
  679. decompressor output because it is not possible to know where to
  680. send the decompressor output.
  681. When this option is set, the selected DEBUG_LL output method
  682. will be re-used for normal decompressor output on multiplatform
  683. kernels.
  684. config UNCOMPRESS_INCLUDE
  685. string
  686. default "debug/uncompress.h" if ARCH_MULTIPLATFORM
  687. default "mach/uncompress.h"
  688. config EARLY_PRINTK
  689. bool "Early printk"
  690. depends on DEBUG_LL
  691. help
  692. Say Y here if you want to have an early console using the
  693. kernel low-level debugging functions. Add earlyprintk to your
  694. kernel parameters to enable this console.
  695. config OC_ETM
  696. bool "On-chip ETM and ETB"
  697. depends on ARM_AMBA
  698. help
  699. Enables the on-chip embedded trace macrocell and embedded trace
  700. buffer driver that will allow you to collect traces of the
  701. kernel code.
  702. config ARM_KPROBES_TEST
  703. tristate "Kprobes test module"
  704. depends on KPROBES && MODULES
  705. help
  706. Perform tests of kprobes API and instruction set simulation.
  707. config PID_IN_CONTEXTIDR
  708. bool "Write the current PID to the CONTEXTIDR register"
  709. depends on CPU_COPY_V6
  710. help
  711. Enabling this option causes the kernel to write the current PID to
  712. the PROCID field of the CONTEXTIDR register, at the expense of some
  713. additional instructions during context switch. Say Y here only if you
  714. are planning to use hardware trace tools with this kernel.
  715. endmenu