board/ti/ti816x/evm.c

   1 /*
   2  * evm.c
   3  *
   4  * Copyright (C) 2013, Adeneo Embedded <www.adeneo-embedded.com>
   5  * Antoine Tenart, <atenart@adeneo-embedded.com>
   6  *
   7  * SPDX-License-Identifier:     GPL-2.0+
   8  */
   9
  10 #include <common.h>
  11 #include <spl.h>
  12 #include <asm/cache.h>
  13 #include <asm/io.h>
  14 #include <asm/arch/clock.h>
  15 #include <asm/arch/cpu.h>
  16 #include <asm/arch/ddr_defs.h>
  17 #include <asm/arch/hardware.h>
  18 #include <asm/arch/sys_proto.h>
  19 #include <asm/arch/mmc_host_def.h>
  20 #include <asm/arch/mem.h>
  21 #include <asm/arch/mux.h>
  22
  23 DECLARE_GLOBAL_DATA_PTR;
  24
  25 int board_init(void)
  26 {
  27         gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
  28 #if defined(CONFIG_NAND)
  29         gpmc_init();
  30 #endif
  31         return 0;
  32 }
  33
  34 #ifdef CONFIG_SPL_BUILD
  35 static struct module_pin_mux mmc_pin_mux[] = {
  36         { OFFSET(pincntl157), PULLDOWN_EN | PULLUDDIS | MODE(0x0) },
  37         { OFFSET(pincntl158), PULLDOWN_EN | PULLUDEN | MODE(0x0) },
  38         { OFFSET(pincntl159), PULLUP_EN | PULLUDDIS | MODE(0x0) },
  39         { OFFSET(pincntl160), PULLUP_EN | PULLUDDIS | MODE(0x0) },
  40         { OFFSET(pincntl161), PULLUP_EN | PULLUDDIS | MODE(0x0) },
  41         { OFFSET(pincntl162), PULLUP_EN | PULLUDDIS | MODE(0x0) },
  42         { OFFSET(pincntl163), PULLUP_EN | PULLUDDIS | MODE(0x0) },
  43         { -1 },
  44 };
  45
  46 void set_uart_mux_conf(void) {}
  47
  48 void set_mux_conf_regs(void)
  49 {
  50         configure_module_pin_mux(mmc_pin_mux);
  51 }
  52
  53 /*
  54  * EMIF Paramters.  Refer the EMIF register documentation and the
  55  * memory datasheet for details.  This is for 796 MHz.
  56  */
  57 #define EMIF_TIM1   0x1779C9FE
  58 #define EMIF_TIM2   0x50608074
  59 #define EMIF_TIM3   0x009F857F
  60 #define EMIF_SDREF  0x10001841
  61 #define EMIF_SDCFG  0x62A73832
  62 #define EMIF_PHYCFG 0x00000110
  63 static const struct emif_regs ddr3_emif_regs = {
  64         .sdram_config           = EMIF_SDCFG,
  65         .ref_ctrl               = EMIF_SDREF,
  66         .sdram_tim1             = EMIF_TIM1,
  67         .sdram_tim2             = EMIF_TIM2,
  68         .sdram_tim3             = EMIF_TIM3,
  69         .emif_ddr_phy_ctlr_1    = EMIF_PHYCFG,
  70 };
  71
  72 static const struct cmd_control ddr3_ctrl = {
  73         .cmd0csratio    = 0x100,
  74         .cmd0iclkout    = 0x001,
  75         .cmd1csratio    = 0x100,
  76         .cmd1iclkout    = 0x001,
  77         .cmd2csratio    = 0x100,
  78         .cmd2iclkout    = 0x001,
  79 };
  80
  81 /* These values are obtained from the CCS app */
  82 #define RD_DQS_GATE     (0x1B3)
  83 #define RD_DQS          (0x35)
  84 #define WR_DQS          (0x93)
  85 static struct ddr_data ddr3_data = {
  86         .datardsratio0          = ((RD_DQS<<10) | (RD_DQS<<0)),
  87         .datawdsratio0          = ((WR_DQS<<10) | (WR_DQS<<0)),
  88         .datawiratio0           = ((0x20<<10) | 0x20<<0),
  89         .datagiratio0           = ((0x20<<10) | 0x20<<0),
  90         .datafwsratio0          = ((RD_DQS_GATE<<10) | (RD_DQS_GATE<<0)),
  91         .datawrsratio0          = (((WR_DQS+0x40)<<10) | ((WR_DQS+0x40)<<0)),
  92 };
  93
  94 static const struct dmm_lisa_map_regs evm_lisa_map_regs = {
  95         .dmm_lisa_map_0 = 0x00000000,
  96         .dmm_lisa_map_1 = 0x00000000,
  97         .dmm_lisa_map_2 = 0x80640300,
  98         .dmm_lisa_map_3 = 0xC0640320,
  99 };
 100
 101 void sdram_init(void)
 102 {
 103         /*
 104          * Pass in our DDR3 config information and that we have 2 EMIFs to
 105          * configure.
 106          */
 107         config_ddr(&ddr3_data, &ddr3_ctrl, &ddr3_emif_regs,
 108                         &evm_lisa_map_regs, 2);
 109 }
 110 #endif /* CONFIG_SPL_BUILD */