mx7ulp_com.h 2.5 KB

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  1. /* SPDX-License-Identifier: GPL-2.0+ */
  2. /*
  3. * Copyright (C) 2016 Freescale Semiconductor, Inc.
  4. *
  5. * Configuration settings for the Embedded Artists i.MX7ULP COM board.
  6. */
  7. #ifndef __MX7ULP_COM_CONFIG_H
  8. #define __MX7ULP_COM_CONFIG_H
  9. #include <linux/sizes.h>
  10. #include <asm/arch/imx-regs.h>
  11. #define CONFIG_BOARD_POSTCLK_INIT
  12. #define CONFIG_SYS_BOOTM_LEN 0x1000000
  13. /*
  14. * Detect overlap between U-Boot image and environment area in build-time
  15. *
  16. * CONFIG_BOARD_SIZE_LIMIT = CONFIG_ENV_OFFSET - u-boot-dtb.imx offset
  17. * CONFIG_BOARD_SIZE_LIMIT = 768k - 1k = 767k = 785408
  18. *
  19. * Currently CONFIG_BOARD_SIZE_LIMIT does not handle expressions, so
  20. * write the direct value here
  21. */
  22. #define CONFIG_BOARD_SIZE_LIMIT 785408
  23. #define CONFIG_SYS_MMC_ENV_DEV 0
  24. #define CONFIG_MMCROOT "/dev/mmcblk0p2"
  25. #define CONFIG_SYS_MMC_IMG_LOAD_PART 1
  26. /* Using ULP WDOG for reset */
  27. #define WDOG_BASE_ADDR WDG1_RBASE
  28. #define CONFIG_SYS_HZ_CLOCK 1000000 /* Fixed at 1MHz from TSTMR */
  29. #define CONFIG_INITRD_TAG
  30. #define CONFIG_CMDLINE_TAG
  31. #define CONFIG_SETUP_MEMORY_TAGS
  32. /* Size of malloc() pool */
  33. #define CONFIG_SYS_MALLOC_LEN (8 * SZ_1M)
  34. /* UART */
  35. #define LPUART_BASE LPUART4_RBASE
  36. /* allow to overwrite serial and ethaddr */
  37. #define CONFIG_ENV_OVERWRITE
  38. /* Physical Memory Map */
  39. #define PHYS_SDRAM 0x60000000
  40. #define CONFIG_SYS_SDRAM_BASE PHYS_SDRAM
  41. #define CONFIG_LOADADDR 0x60800000
  42. #define CONFIG_EXTRA_ENV_SETTINGS \
  43. "image=zImage\0" \
  44. "console=ttyLP0\0" \
  45. "fdt_high=0xffffffff\0" \
  46. "initrd_high=0xffffffff\0" \
  47. "fdt_file=imx7ulp-com.dtb\0" \
  48. "fdt_addr=0x63000000\0" \
  49. "mmcdev="__stringify(CONFIG_SYS_MMC_ENV_DEV)"\0" \
  50. "mmcpart=" __stringify(CONFIG_SYS_MMC_IMG_LOAD_PART) "\0" \
  51. "mmcroot=" CONFIG_MMCROOT " rootwait rw\0" \
  52. "mmcargs=setenv bootargs console=${console},${baudrate} " \
  53. "root=${mmcroot}\0" \
  54. "loadimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${image}\0" \
  55. "loadfdt=fatload mmc ${mmcdev}:${mmcpart} ${fdt_addr} ${fdt_file}\0" \
  56. "mmcboot=echo Booting from mmc ...; " \
  57. "run mmcargs; " \
  58. "if run loadfdt; then " \
  59. "bootz ${loadaddr} - ${fdt_addr}; " \
  60. "fi;\0" \
  61. #define CONFIG_BOOTCOMMAND \
  62. "if run loadimage; then " \
  63. "run mmcboot; " \
  64. "fi; " \
  65. #define CONFIG_SYS_LOAD_ADDR CONFIG_LOADADDR
  66. #define CONFIG_SYS_INIT_RAM_ADDR IRAM_BASE_ADDR
  67. #define CONFIG_SYS_INIT_RAM_SIZE SZ_256K
  68. #define CONFIG_SYS_INIT_SP_OFFSET \
  69. (CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
  70. #define CONFIG_SYS_INIT_SP_ADDR \
  71. (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET)
  72. #define CONFIG_MXC_USB_PORTSC (PORT_PTS_UTMI | PORT_PTS_PTW)
  73. #endif /* __CONFIG_H */