LXR uboot/board/st/stm32mp1/spl.c

   1// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
   2/*
   3 * Copyright (C) 2018, STMicroelectronics - All Rights Reserved
   4 */
   5
   6#include <config.h>
   7#include <common.h>
   8#include <spl.h>
   9#include <dm.h>
  10#include <ram.h>
  11#include <asm/io.h>
  12#include <power/pmic.h>
  13#include <power/stpmic1.h>
  14#include <asm/arch/ddr.h>
  15
  16void spl_board_init(void)
  17{
  18        /* Keep vdd on during the reset cycle */
  19#if defined(CONFIG_PMIC_STPMIC1) && defined(CONFIG_SPL_POWER_SUPPORT)
  20        struct udevice *dev;
  21        int ret;
  22
  23        ret = uclass_get_device_by_driver(UCLASS_PMIC,
  24                                          DM_GET_DRIVER(pmic_stpmic1), &dev);
  25        if (!ret)
  26                pmic_clrsetbits(dev,
  27                                STPMIC1_BUCKS_MRST_CR,
  28                                STPMIC1_MRST_BUCK(STPMIC1_BUCK3),
  29                                STPMIC1_MRST_BUCK(STPMIC1_BUCK3));
  30
  31        /* Check if debug is enabled to program PMIC according to the bit */
  32        if ((readl(TAMP_BOOT_CONTEXT) & TAMP_BOOT_DEBUG_ON) && !ret) {
  33                printf("Keep debug unit ON\n");
  34
  35                pmic_clrsetbits(dev, STPMIC1_BUCKS_MRST_CR,
  36                                STPMIC1_MRST_BUCK_DEBUG,
  37                                STPMIC1_MRST_BUCK_DEBUG);
  38
  39                if (STPMIC1_MRST_LDO_DEBUG)
  40                        pmic_clrsetbits(dev, STPMIC1_LDOS_MRST_CR,
  41                                        STPMIC1_MRST_LDO_DEBUG,
  42                                        STPMIC1_MRST_LDO_DEBUG);
  43        }
  44#endif
  45}
  46