board/freescale/t4qds/t4240emu.c

   1 /*
   2  * Copyright 2013 Freescale Semiconductor, Inc.
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #include <common.h>
   8 #include <command.h>
   9 #include <i2c.h>
  10 #include <netdev.h>
  11 #include <linux/compiler.h>
  12 #include <asm/mmu.h>
  13 #include <asm/processor.h>
  14 #include <asm/cache.h>
  15 #include <asm/immap_85xx.h>
  16 #include <asm/fsl_law.h>
  17 #include <asm/fsl_serdes.h>
  18 #include <asm/fsl_liodn.h>
  19
  20 DECLARE_GLOBAL_DATA_PTR;
  21
  22 int checkboard(void)
  23 {
  24         struct cpu_type *cpu = gd->arch.cpu;
  25
  26         printf("Board: %sEMU\n", cpu->name);
  27
  28         return 0;
  29 }
  30
  31 int board_early_init_r(void)
  32 {
  33         const unsigned int flashbase = CONFIG_SYS_FLASH_BASE;
  34         int flash_esel = find_tlb_idx((void *)flashbase, 1);
  35
  36         /*
  37          * Remap Boot flash + PROMJET region to caching-inhibited
  38          * so that flash can be erased properly.
  39          */
  40
  41         /* Flush d-cache and invalidate i-cache of any FLASH data */
  42         flush_dcache();
  43         invalidate_icache();
  44
  45         if (flash_esel == -1) {
  46                 /* very unlikely unless something is messed up */
  47                 puts("Error: Could not find TLB for FLASH BASE\n");
  48                 flash_esel = 2; /* give our best effort to continue */
  49         } else {
  50                 /* invalidate existing TLB entry for flash */
  51                 disable_tlb(flash_esel);
  52         }
  53
  54         set_tlb(1, flashbase, CONFIG_SYS_FLASH_BASE_PHYS,
  55                 MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
  56                 0, flash_esel, BOOKE_PAGESZ_256M, 1);
  57
  58         return 0;
  59 }
  60
  61 int misc_init_r(void)
  62 {
  63         return 0;
  64 }
  65
  66 int ft_board_setup(void *blob, bd_t *bd)
  67 {
  68         phys_addr_t base;
  69         phys_size_t size;
  70
  71         ft_cpu_setup(blob, bd);
  72
  73         base = getenv_bootm_low();
  74         size = getenv_bootm_size();
  75
  76         fdt_fixup_memory(blob, (u64)base, (u64)size);
  77
  78         fdt_fixup_liodn(blob);
  79         fsl_fdt_fixup_dr_usb(blob, bd);
  80
  81         return 0;
  82 }