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 <power/pmic.h>
   8 #include <power/stpmic1.h>
   9 #include <asm/arch/sys_proto.h>
  10 #include "../common/stpmic1.h"
  11
  12 /* board early initialisation in board_f: need to use global variable */
  13 static u32 opp_voltage_mv __section(".data");
  14
  15 void board_vddcore_init(u32 voltage_mv)
  16 {
  17         if (IS_ENABLED(CONFIG_PMIC_STPMIC1) && CONFIG_IS_ENABLED(POWER))
  18                 opp_voltage_mv = voltage_mv;
  19 }
  20
  21 int board_early_init_f(void)
  22 {
  23         if (IS_ENABLED(CONFIG_PMIC_STPMIC1) && CONFIG_IS_ENABLED(POWER)) {
  24                 struct udevice *dev = stpmic1_init(opp_voltage_mv);
  25
  26                 /* Keep vdd on during the reset cycle */
  27                 pmic_clrsetbits(dev,
  28                                 STPMIC1_BUCKS_MRST_CR,
  29                                 STPMIC1_MRST_BUCK(STPMIC1_BUCK3),
  30                                 STPMIC1_MRST_BUCK(STPMIC1_BUCK3));
  31         }
  32
  33         return 0;
  34 }
  35