ti_armv7_common.h 8.7 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275
  1. /*
  2. * ti_armv7_common.h
  3. *
  4. * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
  5. *
  6. * SPDX-License-Identifier: GPL-2.0+
  7. *
  8. * The various ARMv7 SoCs from TI all share a number of IP blocks when
  9. * implementing a given feature. Rather than define these in every
  10. * board or even SoC common file, we define a common file to be re-used
  11. * in all cases. While technically true that some of these details are
  12. * configurable at the board design, they are common throughout SoC
  13. * reference platforms as well as custom designs and become de facto
  14. * standards.
  15. */
  16. #ifndef __CONFIG_TI_ARMV7_COMMON_H__
  17. #define __CONFIG_TI_ARMV7_COMMON_H__
  18. /*
  19. * We typically do not contain NOR flash. In the cases where we do, we
  20. * undefine this later.
  21. */
  22. #define CONFIG_SYS_NO_FLASH
  23. /* Support both device trees and ATAGs. */
  24. #define CONFIG_CMDLINE_TAG
  25. #define CONFIG_SETUP_MEMORY_TAGS
  26. #define CONFIG_INITRD_TAG
  27. /*
  28. * Our DDR memory always starts at 0x80000000 and U-Boot shall have
  29. * relocated itself to higher in memory by the time this value is used.
  30. * However, set this to a 32MB offset to allow for easier Linux kernel
  31. * booting as the default is often used as the kernel load address.
  32. */
  33. #define CONFIG_SYS_LOAD_ADDR 0x82000000
  34. /*
  35. * We setup defaults based on constraints from the Linux kernel, which should
  36. * also be safe elsewhere. We have the default load at 32MB into DDR (for
  37. * the kernel), FDT above 128MB (the maximum location for the end of the
  38. * kernel), and the ramdisk 512KB above that (allowing for hopefully never
  39. * seen large trees). We say all of this must be within the first 256MB
  40. * as that will normally be within the kernel lowmem and thus visible via
  41. * bootm_size and we only run on platforms with 256MB or more of memory.
  42. */
  43. #define DEFAULT_LINUX_BOOT_ENV \
  44. "loadaddr=0x82000000\0" \
  45. "kernel_addr_r=0x82000000\0" \
  46. "fdtaddr=0x88000000\0" \
  47. "fdt_addr_r=0x88000000\0" \
  48. "rdaddr=0x88080000\0" \
  49. "ramdisk_addr_r=0x88080000\0" \
  50. "scriptaddr=0x80000000\0" \
  51. "pxefile_addr_r=0x80100000\0" \
  52. "bootm_size=0x10000000\0" \
  53. "boot_fdt=try\0"
  54. #define DEFAULT_FIT_TI_ARGS \
  55. "boot_fit=0\0" \
  56. "fit_loadaddr=0x87000000\0" \
  57. "fit_bootfile=fitImage\0" \
  58. "update_to_fit=setenv loadaddr ${fit_loadaddr}; setenv bootfile ${fit_bootfile}\0" \
  59. "loadfit=run args_mmc; bootm ${loadaddr}#${fdtfile};\0" \
  60. /*
  61. * DDR information. If the CONFIG_NR_DRAM_BANKS is not defined,
  62. * we say (for simplicity) that we have 1 bank, always, even when
  63. * we have more. We always start at 0x80000000, and we place the
  64. * initial stack pointer in our SRAM. Otherwise, we can define
  65. * CONFIG_NR_DRAM_BANKS before including this file.
  66. */
  67. #ifndef CONFIG_NR_DRAM_BANKS
  68. #define CONFIG_NR_DRAM_BANKS 1
  69. #endif
  70. #define CONFIG_SYS_SDRAM_BASE 0x80000000
  71. #ifndef CONFIG_SYS_INIT_SP_ADDR
  72. #define CONFIG_SYS_INIT_SP_ADDR (NON_SECURE_SRAM_END - \
  73. GENERATED_GBL_DATA_SIZE)
  74. #endif
  75. /* Timer information. */
  76. #define CONFIG_SYS_PTV 2 /* Divisor: 2^(PTV+1) => 8 */
  77. /*
  78. * Disable DM_* for SPL build and can be re-enabled after adding
  79. * DM support in SPL
  80. */
  81. #ifdef CONFIG_SPL_BUILD
  82. #undef CONFIG_DM_I2C
  83. #endif
  84. /* I2C IP block */
  85. #define CONFIG_I2C
  86. #ifndef CONFIG_DM_I2C
  87. #define CONFIG_SYS_I2C
  88. #else
  89. /*
  90. * Enable CONFIG_DM_I2C_COMPAT temporarily until all the i2c client
  91. * devices are adopted to DM
  92. */
  93. #define CONFIG_DM_I2C_COMPAT
  94. #endif
  95. /* MMC/SD IP block */
  96. #define CONFIG_GENERIC_MMC
  97. /* McSPI IP block */
  98. #define CONFIG_SPI
  99. /* GPIO block */
  100. /*
  101. * The following are general good-enough settings for U-Boot. We set a
  102. * large malloc pool as we generally have a lot of DDR, and we opt for
  103. * function over binary size in the main portion of U-Boot as this is
  104. * generally easily constrained later if needed. We enable the config
  105. * options that give us information in the environment about what board
  106. * we are on so we do not need to rely on the command prompt. We set a
  107. * console baudrate of 115200 and use the default baud rate table.
  108. */
  109. #define CONFIG_SYS_MALLOC_LEN SZ_32M
  110. #define CONFIG_BAUDRATE 115200
  111. #define CONFIG_ENV_VARS_UBOOT_CONFIG /* Strongly encouraged */
  112. #define CONFIG_ENV_OVERWRITE /* Overwrite ethaddr / serial# */
  113. /* As stated above, the following choices are optional. */
  114. #define CONFIG_SYS_LONGHELP
  115. #define CONFIG_AUTO_COMPLETE
  116. #define CONFIG_CMDLINE_EDITING
  117. /* We set the max number of command args high to avoid HUSH bugs. */
  118. #define CONFIG_SYS_MAXARGS 64
  119. /* Console I/O Buffer Size */
  120. #define CONFIG_SYS_CBSIZE 1024
  121. /* Print Buffer Size */
  122. #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE \
  123. + sizeof(CONFIG_SYS_PROMPT) + 16)
  124. /* Boot Argument Buffer Size */
  125. #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE
  126. /*
  127. * When we have SPI, NOR or NAND flash we expect to be making use of
  128. * mtdparts, both for ease of use in U-Boot and for passing information
  129. * on to the Linux kernel.
  130. */
  131. #if defined(CONFIG_SPI_BOOT) || defined(CONFIG_NOR) || defined(CONFIG_NAND) || defined(CONFIG_NAND_DAVINCI)
  132. #define CONFIG_MTD_DEVICE /* Required for mtdparts */
  133. #define CONFIG_CMD_MTDPARTS
  134. #endif
  135. #define CONFIG_SUPPORT_RAW_INITRD
  136. /*
  137. * Common filesystems support. When we have removable storage we
  138. * enabled a number of useful commands and support.
  139. */
  140. #if defined(CONFIG_MMC) || defined(CONFIG_USB_STORAGE)
  141. #define CONFIG_DOS_PARTITION
  142. #define CONFIG_FAT_WRITE
  143. #define CONFIG_PARTITION_UUIDS
  144. #define CONFIG_CMD_PART
  145. #endif
  146. /*
  147. * Our platforms make use of SPL to initalize the hardware (primarily
  148. * memory) enough for full U-Boot to be loaded. We make use of the general
  149. * SPL framework found under common/spl/. Given our generally common memory
  150. * map, we set a number of related defaults and sizes here.
  151. */
  152. #if !defined(CONFIG_NOR_BOOT) && \
  153. !(defined(CONFIG_QSPI_BOOT) && defined(CONFIG_AM43XX))
  154. #define CONFIG_SPL_FRAMEWORK
  155. /*
  156. * We also support Falcon Mode so that the Linux kernel can be booted
  157. * directly from SPL. This is not currently available on HS devices.
  158. */
  159. /*
  160. * Place the image at the start of the ROM defined image space (per
  161. * CONFIG_SPL_TEXT_BASE and we limit our size to the ROM-defined
  162. * downloaded image area minus 1KiB for scratch space. We initalize DRAM as
  163. * soon as we can so that we can place stack, malloc and BSS there. We load
  164. * U-Boot itself into memory at 0x80800000 for legacy reasons (to not conflict
  165. * with older SPLs). We have our BSS be placed 2MiB after this, to allow for
  166. * the default Linux kernel address of 0x80008000 to work with most sized
  167. * kernels, in the Falcon Mode case. We have the SPL malloc pool at the end
  168. * of the BSS area. We suggest that the stack be placed at 32MiB after the
  169. * start of DRAM to allow room for all of the above (handled in Kconfig).
  170. */
  171. #ifndef CONFIG_SYS_TEXT_BASE
  172. #define CONFIG_SYS_TEXT_BASE 0x80800000
  173. #endif
  174. #ifndef CONFIG_SPL_BSS_START_ADDR
  175. #define CONFIG_SPL_BSS_START_ADDR 0x80a00000
  176. #define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */
  177. #endif
  178. #ifndef CONFIG_SYS_SPL_MALLOC_START
  179. #define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SPL_BSS_START_ADDR + \
  180. CONFIG_SPL_BSS_MAX_SIZE)
  181. #define CONFIG_SYS_SPL_MALLOC_SIZE SZ_8M
  182. #endif
  183. #ifndef CONFIG_SPL_MAX_SIZE
  184. #define CONFIG_SPL_MAX_SIZE (SRAM_SCRATCH_SPACE_ADDR - \
  185. CONFIG_SPL_TEXT_BASE)
  186. #endif
  187. /* FAT sd card locations. */
  188. #define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION 1
  189. #define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot.img"
  190. #ifdef CONFIG_SPL_OS_BOOT
  191. /* FAT */
  192. #define CONFIG_SPL_FS_LOAD_KERNEL_NAME "uImage"
  193. #define CONFIG_SPL_FS_LOAD_ARGS_NAME "args"
  194. /* RAW SD card / eMMC */
  195. #define CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR 0x1700 /* address 0x2E0000 */
  196. #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR 0x1500 /* address 0x2A0000 */
  197. #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS 0x200 /* 256KiB */
  198. /* spl export command */
  199. #define CONFIG_CMD_SPL
  200. #endif
  201. #define CONFIG_SYS_THUMB_BUILD
  202. /* General parts of the framework, required. */
  203. #define CONFIG_SPL_BOARD_INIT
  204. #ifdef CONFIG_NAND
  205. #define CONFIG_SPL_NAND_BASE
  206. #define CONFIG_SPL_NAND_DRIVERS
  207. #define CONFIG_SPL_NAND_ECC
  208. #define CONFIG_SYS_NAND_U_BOOT_START CONFIG_SYS_TEXT_BASE
  209. #endif
  210. #endif /* !CONFIG_NOR_BOOT */
  211. /* Generic Environment Variables */
  212. #ifdef CONFIG_CMD_NET
  213. #define NETARGS \
  214. "static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}" \
  215. "::off\0" \
  216. "nfsopts=nolock\0" \
  217. "rootpath=/export/rootfs\0" \
  218. "netloadimage=tftp ${loadaddr} ${bootfile}\0" \
  219. "netloadfdt=tftp ${fdtaddr} ${fdtfile}\0" \
  220. "netargs=setenv bootargs console=${console} " \
  221. "${optargs} " \
  222. "root=/dev/nfs " \
  223. "nfsroot=${serverip}:${rootpath},${nfsopts} rw " \
  224. "ip=dhcp\0" \
  225. "netboot=echo Booting from network ...; " \
  226. "setenv autoload no; " \
  227. "dhcp; " \
  228. "run netloadimage; " \
  229. "run netloadfdt; " \
  230. "run netargs; " \
  231. "bootz ${loadaddr} - ${fdtaddr}\0"
  232. #else
  233. #define NETARGS ""
  234. #endif
  235. #include <config_distro_defaults.h>
  236. #define CONFIG_CMD_TIME
  237. #endif /* __CONFIG_TI_ARMV7_COMMON_H__ */