board/kontron/sl28/common.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2
   3 #include <common.h>
   4 #include <asm/global_data.h>
   5 #include <asm/io.h>
   6
   7 #include "sl28.h"
   8
   9 DECLARE_GLOBAL_DATA_PTR;
  10
  11 u32 get_lpuart_clk(void)
  12 {
  13         return gd->bus_clk / CONFIG_SYS_FSL_LPUART_CLK_DIV;
  14 }
  15
  16 enum boot_source sl28_boot_source(void)
  17 {
  18         u32 rcw_src = in_le32(DCFG_BASE + DCFG_PORSR1) & DCFG_PORSR1_RCW_SRC;
  19
  20         switch (rcw_src) {
  21         case DCFG_PORSR1_RCW_SRC_SDHC1:
  22                 return BOOT_SOURCE_SDHC;
  23         case DCFG_PORSR1_RCW_SRC_SDHC2:
  24                 return BOOT_SOURCE_MMC;
  25         case DCFG_PORSR1_RCW_SRC_I2C:
  26                 return BOOT_SOURCE_I2C;
  27         case DCFG_PORSR1_RCW_SRC_FSPI_NOR:
  28                 return BOOT_SOURCE_SPI;
  29         default:
  30                 debug("unknown bootsource (%08x)\n", rcw_src);
  31                 return BOOT_SOURCE_UNKNOWN;
  32         }
  33 }