board/ti/ks2_evm/board_k2e.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * K2E EVM : Board initialization
   4  *
   5  * (C) Copyright 2014
   6  *     Texas Instruments Incorporated, <www.ti.com>
   7  */
   8
   9 #include <common.h>
  10 #include <asm/arch/ddr3.h>
  11 #include <asm/arch/hardware.h>
  12 #include <asm/ti-common/keystone_net.h>
  13
  14 unsigned int get_external_clk(u32 clk)
  15 {
  16         unsigned int clk_freq;
  17
  18         switch (clk) {
  19         case sys_clk:
  20                 clk_freq = 100000000;
  21                 break;
  22         case alt_core_clk:
  23                 clk_freq = 100000000;
  24                 break;
  25         case pa_clk:
  26                 clk_freq = 100000000;
  27                 break;
  28         case ddr3a_clk:
  29                 clk_freq = 100000000;
  30                 break;
  31         default:
  32                 clk_freq = 0;
  33                 break;
  34         }
  35
  36         return clk_freq;
  37 }
  38
  39 static struct pll_init_data core_pll_config[NUM_SPDS] = {
  40         [SPD800]        = CORE_PLL_800,
  41         [SPD850]        = CORE_PLL_850,
  42         [SPD1000]       = CORE_PLL_1000,
  43         [SPD1250]       = CORE_PLL_1250,
  44         [SPD1350]       = CORE_PLL_1350,
  45         [SPD1400]       = CORE_PLL_1400,
  46         [SPD1500]       = CORE_PLL_1500,
  47 };
  48
  49 /* DEV and ARM speed definitions as specified in DEVSPEED register */
  50 int speeds[DEVSPEED_NUMSPDS] = {
  51         SPD850,
  52         SPD1000,
  53         SPD1250,
  54         SPD1350,
  55         SPD1400,
  56         SPD1500,
  57         SPD1400,
  58         SPD1350,
  59         SPD1250,
  60         SPD1000,
  61         SPD850,
  62         SPD800,
  63 };
  64
  65 s16 divn_val[16] = {
  66         0, 0, 1, 4, 23, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
  67 };
  68
  69 static struct pll_init_data pa_pll_config =
  70         PASS_PLL_1000;
  71
  72 struct pll_init_data *get_pll_init_data(int pll)
  73 {
  74         int speed;
  75         struct pll_init_data *data;
  76
  77         switch (pll) {
  78         case MAIN_PLL:
  79                 speed = get_max_dev_speed(speeds);
  80                 data = &core_pll_config[speed];
  81                 break;
  82         case PASS_PLL:
  83                 data = &pa_pll_config;
  84                 break;
  85         default:
  86                 data = NULL;
  87         }
  88
  89         return data;
  90 }
  91
  92 #if defined(CONFIG_MULTI_DTB_FIT)
  93 int board_fit_config_name_match(const char *name)
  94 {
  95         if (!strcmp(name, "keystone-k2e-evm"))
  96                 return 0;
  97
  98         return -1;
  99 }
 100 #endif
 101
 102 #if defined(CONFIG_BOARD_EARLY_INIT_F)
 103 int board_early_init_f(void)
 104 {
 105         init_plls();
 106
 107         return 0;
 108 }
 109 #endif
 110
 111 #ifdef CONFIG_SPL_BUILD
 112 void spl_init_keystone_plls(void)
 113 {
 114         init_plls();
 115 }
 116 #endif