arch/arm/mach-zynq/spl.c

   1 /*
   2  * (C) Copyright 2014 - 2017 Xilinx, Inc. Michal Simek
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6 #include <common.h>
   7 #include <debug_uart.h>
   8 #include <spl.h>
   9
  10 #include <asm/io.h>
  11 #include <asm/spl.h>
  12 #include <asm/arch/hardware.h>
  13 #include <asm/arch/sys_proto.h>
  14 #include <asm/arch/ps7_init_gpl.h>
  15
  16 DECLARE_GLOBAL_DATA_PTR;
  17
  18 void board_init_f(ulong dummy)
  19 {
  20         ps7_init();
  21
  22         arch_cpu_init();
  23         /*
  24          * The debug UART can be used from this point:
  25          * debug_uart_init();
  26          * printch('x');
  27          */
  28 }
  29
  30 #ifdef CONFIG_SPL_BOARD_INIT
  31 void spl_board_init(void)
  32 {
  33         preloader_console_init();
  34         board_init();
  35 }
  36 #endif
  37
  38 u32 spl_boot_device(void)
  39 {
  40         u32 mode;
  41
  42         switch ((zynq_slcr_get_boot_mode()) & ZYNQ_BM_MASK) {
  43 #ifdef CONFIG_SPL_SPI_SUPPORT
  44         case ZYNQ_BM_QSPI:
  45                 puts("qspi boot\n");
  46                 mode = BOOT_DEVICE_SPI;
  47                 break;
  48 #endif
  49         case ZYNQ_BM_NAND:
  50                 mode = BOOT_DEVICE_NAND;
  51                 break;
  52         case ZYNQ_BM_NOR:
  53                 mode = BOOT_DEVICE_NOR;
  54                 break;
  55 #ifdef CONFIG_SPL_MMC_SUPPORT
  56         case ZYNQ_BM_SD:
  57                 puts("mmc boot\n");
  58                 mode = BOOT_DEVICE_MMC1;
  59                 break;
  60 #endif
  61         case ZYNQ_BM_JTAG:
  62                 mode = BOOT_DEVICE_RAM;
  63                 break;
  64         default:
  65                 puts("Unsupported boot mode selected\n");
  66                 hang();
  67         }
  68
  69         return mode;
  70 }
  71
  72 #ifdef CONFIG_SPL_OS_BOOT
  73 int spl_start_uboot(void)
  74 {
  75         /* boot linux */
  76         return 0;
  77 }
  78 #endif
  79
  80 void spl_board_prepare_for_boot(void)
  81 {
  82         ps7_post_config();
  83         debug("SPL bye\n");
  84 }
  85
  86 #ifdef CONFIG_SPL_LOAD_FIT
  87 int board_fit_config_name_match(const char *name)
  88 {
  89         /* Just empty function now - can't decide what to choose */
  90         debug("%s: %s\n", __func__, name);
  91
  92         return 0;
  93 }
  94 #endif