arch/arm/mach-stm32mp/fdt.c

   1 // SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
   2 /*
   3  * Copyright (C) 2019, STMicroelectronics - All Rights Reserved
   4  */
   5
   6 #include <common.h>
   7 #include <fdt_support.h>
   8 #include <asm/arch/sys_proto.h>
   9 #include <dt-bindings/pinctrl/stm32-pinfunc.h>
  10
  11 /*
  12  * This function is called right before the kernel is booted. "blob" is the
  13  * device tree that will be passed to the kernel.
  14  */
  15 int ft_system_setup(void *blob, bd_t *bd)
  16 {
  17         int ret = 0;
  18         u32 pkg;
  19
  20         switch (get_cpu_package()) {
  21         case PKG_AA_LBGA448:
  22                 pkg = STM32MP_PKG_AA;
  23                 break;
  24         case PKG_AB_LBGA354:
  25                 pkg = STM32MP_PKG_AB;
  26                 break;
  27         case PKG_AC_TFBGA361:
  28                 pkg = STM32MP_PKG_AC;
  29                 break;
  30         case PKG_AD_TFBGA257:
  31                 pkg = STM32MP_PKG_AD;
  32                 break;
  33         default:
  34                 pkg = 0;
  35                 break;
  36         }
  37         if (pkg) {
  38                 do_fixup_by_compat_u32(blob, "st,stm32mp157-pinctrl",
  39                                        "st,package", pkg, false);
  40                 do_fixup_by_compat_u32(blob, "st,stm32mp157-z-pinctrl",
  41                                        "st,package", pkg, false);
  42         }
  43
  44         return ret;
  45 }