cpu.c 2.6 KB

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * (C) Copyright 2010
  4. * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.com.
  5. */
  6. #include <common.h>
  7. #include <init.h>
  8. #include <asm/io.h>
  9. #include <asm/arch/hardware.h>
  10. #include <asm/arch/spr_misc.h>
  11. int arch_cpu_init(void)
  12. {
  13. struct misc_regs *const misc_p =
  14. (struct misc_regs *)CONFIG_SPEAR_MISCBASE;
  15. u32 periph1_clken, periph_clk_cfg;
  16. periph1_clken = readl(&misc_p->periph1_clken);
  17. #if defined(CONFIG_SPEAR3XX)
  18. periph1_clken |= MISC_GPT2ENB;
  19. #elif defined(CONFIG_SPEAR600)
  20. periph1_clken |= MISC_GPT3ENB;
  21. #endif
  22. #if defined(CONFIG_PL011_SERIAL)
  23. periph1_clken |= MISC_UART0ENB;
  24. periph_clk_cfg = readl(&misc_p->periph_clk_cfg);
  25. periph_clk_cfg &= ~CONFIG_SPEAR_UARTCLKMSK;
  26. periph_clk_cfg |= CONFIG_SPEAR_UART48M;
  27. writel(periph_clk_cfg, &misc_p->periph_clk_cfg);
  28. #endif
  29. #if defined(CONFIG_ETH_DESIGNWARE)
  30. periph1_clken |= MISC_ETHENB;
  31. #endif
  32. #if defined(CONFIG_DW_UDC)
  33. periph1_clken |= MISC_USBDENB;
  34. #endif
  35. #if defined(CONFIG_SYS_I2C_DW)
  36. periph1_clken |= MISC_I2CENB;
  37. #endif
  38. #if defined(CONFIG_ST_SMI)
  39. periph1_clken |= MISC_SMIENB;
  40. #endif
  41. #if defined(CONFIG_NAND_FSMC)
  42. periph1_clken |= MISC_FSMCENB;
  43. #endif
  44. #if defined(CONFIG_USB_EHCI_SPEAR)
  45. periph1_clken |= PERIPH_USBH1 | PERIPH_USBH2;
  46. #endif
  47. #if defined(CONFIG_SPEAR_GPIO)
  48. periph1_clken |= MISC_GPIO3ENB | MISC_GPIO4ENB;
  49. #endif
  50. #if defined(CONFIG_PL022_SPI)
  51. periph1_clken |= MISC_SSP1ENB | MISC_SSP2ENB | MISC_SSP3ENB;
  52. #endif
  53. writel(periph1_clken, &misc_p->periph1_clken);
  54. return 0;
  55. }
  56. #ifdef CONFIG_DISPLAY_CPUINFO
  57. int print_cpuinfo(void)
  58. {
  59. #ifdef CONFIG_SPEAR300
  60. printf("CPU: SPEAr300\n");
  61. #elif defined(CONFIG_SPEAR310)
  62. printf("CPU: SPEAr310\n");
  63. #elif defined(CONFIG_SPEAR320)
  64. printf("CPU: SPEAr320\n");
  65. #elif defined(CONFIG_SPEAR600)
  66. printf("CPU: SPEAr600\n");
  67. #else
  68. #error CPU not supported in spear platform
  69. #endif
  70. return 0;
  71. }
  72. #endif
  73. #if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_NAND_ECC_BCH) && defined(CONFIG_NAND_FSMC)
  74. static int do_switch_ecc(cmd_tbl_t *cmdtp, int flag, int argc,
  75. char *const argv[])
  76. {
  77. if (argc != 2)
  78. goto usage;
  79. if (strncmp(argv[1], "hw", 2) == 0) {
  80. /* 1-bit HW ECC */
  81. printf("Switching to 1-bit HW ECC\n");
  82. fsmc_nand_switch_ecc(1);
  83. } else if (strncmp(argv[1], "bch4", 2) == 0) {
  84. /* 4-bit SW ECC BCH4 */
  85. printf("Switching to 4-bit SW ECC (BCH4)\n");
  86. fsmc_nand_switch_ecc(4);
  87. } else {
  88. goto usage;
  89. }
  90. return 0;
  91. usage:
  92. printf("Usage: nandecc %s\n", cmdtp->usage);
  93. return 1;
  94. }
  95. U_BOOT_CMD(
  96. nandecc, 2, 0, do_switch_ecc,
  97. "switch NAND ECC calculation algorithm",
  98. "hw|bch4 - Switch between NAND hardware 1-bit HW and"
  99. " 4-bit SW BCH\n"
  100. );
  101. #endif