board/freescale/mx6sllevk/mx6sllevk.c

   1 /*
   2  * Copyright (C) 2016 Freescale Semiconductor, Inc.
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #include <asm/arch/clock.h>
   8 #include <asm/arch/crm_regs.h>
   9 #include <asm/arch/iomux.h>
  10 #include <asm/arch/imx-regs.h>
  11 #include <asm/arch/mx6-pins.h>
  12 #include <asm/arch/sys_proto.h>
  13 #include <asm/gpio.h>
  14 #include <asm/mach-imx/iomux-v3.h>
  15 #include <asm/mach-imx/boot_mode.h>
  16 #include <asm/io.h>
  17 #include <common.h>
  18 #include <linux/sizes.h>
  19 #include <mmc.h>
  20 #include <power/pmic.h>
  21 #include <power/pfuze100_pmic.h>
  22 #include "../common/pfuze.h"
  23
  24 DECLARE_GLOBAL_DATA_PTR;
  25
  26 #define UART_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |             \
  27         PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |               \
  28         PAD_CTL_DSE_40ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
  29
  30 int dram_init(void)
  31 {
  32         gd->ram_size = imx_ddr_size();
  33
  34         return 0;
  35 }
  36
  37 static iomux_v3_cfg_t const uart1_pads[] = {
  38         MX6_PAD_UART1_TXD__UART1_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
  39         MX6_PAD_UART1_RXD__UART1_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
  40 };
  41
  42 static iomux_v3_cfg_t const wdog_pads[] = {
  43         MX6_PAD_WDOG_B__WDOG1_B | MUX_PAD_CTRL(NO_PAD_CTRL),
  44 };
  45
  46 static void setup_iomux_uart(void)
  47 {
  48         imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
  49 }
  50
  51 #ifdef CONFIG_DM_PMIC_PFUZE100
  52 int power_init_board(void)
  53 {
  54         struct udevice *dev;
  55         int ret;
  56         u32 dev_id, rev_id, i;
  57         u32 switch_num = 6;
  58         u32 offset = PFUZE100_SW1CMODE;
  59
  60         ret = pmic_get("pfuze100", &dev);
  61         if (ret == -ENODEV)
  62                 return 0;
  63
  64         if (ret != 0)
  65                 return ret;
  66
  67         dev_id = pmic_reg_read(dev, PFUZE100_DEVICEID);
  68         rev_id = pmic_reg_read(dev, PFUZE100_REVID);
  69         printf("PMIC: PFUZE100! DEV_ID=0x%x REV_ID=0x%x\n", dev_id, rev_id);
  70
  71
  72         /* Init mode to APS_PFM */
  73         pmic_reg_write(dev, PFUZE100_SW1ABMODE, APS_PFM);
  74
  75         for (i = 0; i < switch_num - 1; i++)
  76                 pmic_reg_write(dev, offset + i * SWITCH_SIZE, APS_PFM);
  77
  78         /* set SW1AB staby volatage 0.975V */
  79         pmic_clrsetbits(dev, PFUZE100_SW1ABSTBY, 0x3f, 0x1b);
  80
  81         /* set SW1AB/VDDARM step ramp up time from 16us to 4us/25mV */
  82         pmic_clrsetbits(dev, PFUZE100_SW1ABCONF, 0xc0, 0x40);
  83
  84         /* set SW1C staby volatage 0.975V */
  85         pmic_clrsetbits(dev, PFUZE100_SW1CSTBY, 0x3f, 0x1b);
  86
  87         /* set SW1C/VDDSOC step ramp up time to from 16us to 4us/25mV */
  88         pmic_clrsetbits(dev, PFUZE100_SW1CCONF, 0xc0, 0x40);
  89
  90         return 0;
  91 }
  92 #endif
  93
  94 int board_early_init_f(void)
  95 {
  96         setup_iomux_uart();
  97
  98         return 0;
  99 }
 100
 101 int board_init(void)
 102 {
 103         /* Address of boot parameters */
 104         gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
 105
 106         return 0;
 107 }
 108
 109 int board_late_init(void)
 110 {
 111         imx_iomux_v3_setup_multiple_pads(wdog_pads, ARRAY_SIZE(wdog_pads));
 112
 113         return 0;
 114 }
 115
 116 int checkboard(void)
 117 {
 118         puts("Board: MX6SLL EVK\n");
 119
 120         return 0;
 121 }
 122
 123 int board_mmc_get_env_dev(int devno)
 124 {
 125         return devno;
 126 }
 127
 128 int mmc_map_to_kernel_blk(int devno)
 129 {
 130         return devno;
 131 }