board/AndesTech/ax25-ae350/ax25-ae350.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2017 Andes Technology Corporation
   4  * Rick Chen, Andes Technology Corporation <rick@andestech.com>
   5  */
   6
   7 #include <common.h>
   8 #if defined(CONFIG_FTMAC100) && !defined(CONFIG_DM_ETH)
   9 #include <netdev.h>
  10 #endif
  11 #include <linux/io.h>
  12 #include <faraday/ftsmc020.h>
  13 #include <fdtdec.h>
  14
  15 DECLARE_GLOBAL_DATA_PTR;
  16
  17 extern phys_addr_t prior_stage_fdt_address;
  18 /*
  19  * Miscellaneous platform dependent initializations
  20  */
  21
  22 int board_init(void)
  23 {
  24         gd->bd->bi_boot_params = PHYS_SDRAM_0 + 0x400;
  25
  26         return 0;
  27 }
  28
  29 int dram_init(void)
  30 {
  31         unsigned long sdram_base = PHYS_SDRAM_0;
  32         unsigned long expected_size = PHYS_SDRAM_0_SIZE + PHYS_SDRAM_1_SIZE;
  33         unsigned long actual_size;
  34
  35         actual_size = get_ram_size((void *)sdram_base, expected_size);
  36         gd->ram_size = actual_size;
  37
  38         if (expected_size != actual_size) {
  39                 printf("Warning: Only %lu of %lu MiB SDRAM is working\n",
  40                         actual_size >> 20, expected_size >> 20);
  41         }
  42
  43         return 0;
  44 }
  45
  46 int dram_init_banksize(void)
  47 {
  48         gd->bd->bi_dram[0].start = PHYS_SDRAM_0;
  49         gd->bd->bi_dram[0].size =  PHYS_SDRAM_0_SIZE;
  50         gd->bd->bi_dram[1].start = PHYS_SDRAM_1;
  51         gd->bd->bi_dram[1].size =  PHYS_SDRAM_1_SIZE;
  52
  53         return 0;
  54 }
  55
  56 #if defined(CONFIG_FTMAC100) && !defined(CONFIG_DM_ETH)
  57 int board_eth_init(bd_t *bd)
  58 {
  59         return ftmac100_initialize(bd);
  60 }
  61 #endif
  62
  63 ulong board_flash_get_legacy(ulong base, int banknum, flash_info_t *info)
  64 {
  65         return 0;
  66 }
  67
  68 void *board_fdt_blob_setup(void)
  69 {
  70         return (void *)CONFIG_SYS_FDT_BASE;
  71 }
  72
  73 int smc_init(void)
  74 {
  75         int node = -1;
  76         const char *compat = "andestech,atfsmc020";
  77         void *blob = (void *)gd->fdt_blob;
  78         fdt_addr_t addr;
  79         struct ftsmc020_bank *regs;
  80
  81         node = fdt_node_offset_by_compatible(blob, -1, compat);
  82         if (node < 0)
  83                 return -FDT_ERR_NOTFOUND;
  84
  85         addr = fdtdec_get_addr(blob, node, "reg");
  86
  87         if (addr == FDT_ADDR_T_NONE)
  88                 return -EINVAL;
  89
  90         regs = (struct ftsmc020_bank *)addr;
  91         regs->cr &= ~FTSMC020_BANK_WPROT;
  92
  93         return 0;
  94 }
  95
  96 #ifdef CONFIG_BOARD_EARLY_INIT_F
  97 int board_early_init_f(void)
  98 {
  99         smc_init();
 100
 101         return 0;
 102 }
 103 #endif