arch/arm/mach-zynqmp/spl.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright 2015 - 2016 Xilinx, Inc.
   4  *
   5  * Michal Simek <michal.simek@xilinx.com>
   6  */
   7
   8 #include <common.h>
   9 #include <image.h>
  10 #include <init.h>
  11 #include <log.h>
  12 #include <spl.h>
  13
  14 #include <asm/io.h>
  15 #include <asm/spl.h>
  16 #include <asm/arch/hardware.h>
  17 #include <asm/arch/psu_init_gpl.h>
  18 #include <asm/arch/sys_proto.h>
  19
  20 void board_init_f(ulong dummy)
  21 {
  22         board_early_init_f();
  23         board_early_init_r();
  24 }
  25
  26 static void ps_mode_reset(ulong mode)
  27 {
  28         writel(mode << ZYNQMP_CRL_APB_BOOT_PIN_CTRL_OUT_EN_SHIFT,
  29                &crlapb_base->boot_pin_ctrl);
  30         udelay(5);
  31         writel(mode << ZYNQMP_CRL_APB_BOOT_PIN_CTRL_OUT_VAL_SHIFT |
  32                mode << ZYNQMP_CRL_APB_BOOT_PIN_CTRL_OUT_EN_SHIFT,
  33                &crlapb_base->boot_pin_ctrl);
  34 }
  35
  36 /*
  37  * Set default PS_MODE1 which is used for USB ULPI phy reset
  38  * Also other resets can be connected to this certain pin
  39  */
  40 #ifndef MODE_RESET
  41 # define MODE_RESET     PS_MODE1
  42 #endif
  43
  44 #ifdef CONFIG_SPL_BOARD_INIT
  45 void spl_board_init(void)
  46 {
  47         preloader_console_init();
  48         ps_mode_reset(MODE_RESET);
  49         board_init();
  50         psu_post_config_data();
  51 }
  52 #endif
  53
  54 void board_boot_order(u32 *spl_boot_list)
  55 {
  56         spl_boot_list[0] = spl_boot_device();
  57
  58         if (spl_boot_list[0] == BOOT_DEVICE_MMC1)
  59                 spl_boot_list[1] = BOOT_DEVICE_MMC2;
  60         if (spl_boot_list[0] == BOOT_DEVICE_MMC2)
  61                 spl_boot_list[1] = BOOT_DEVICE_MMC1;
  62
  63         spl_boot_list[2] = BOOT_DEVICE_RAM;
  64 }
  65
  66 u32 spl_boot_device(void)
  67 {
  68         u32 reg = 0;
  69         u8 bootmode;
  70
  71 #if defined(CONFIG_SPL_ZYNQMP_ALT_BOOTMODE_ENABLED)
  72         /* Change default boot mode at run-time */
  73         writel(CONFIG_SPL_ZYNQMP_ALT_BOOTMODE << BOOT_MODE_ALT_SHIFT,
  74                &crlapb_base->boot_mode);
  75 #endif
  76
  77         reg = readl(&crlapb_base->boot_mode);
  78         if (reg >> BOOT_MODE_ALT_SHIFT)
  79                 reg >>= BOOT_MODE_ALT_SHIFT;
  80
  81         bootmode = reg & BOOT_MODES_MASK;
  82
  83         switch (bootmode) {
  84         case JTAG_MODE:
  85                 return BOOT_DEVICE_RAM;
  86 #ifdef CONFIG_SPL_MMC_SUPPORT
  87         case SD_MODE1:
  88         case SD1_LSHFT_MODE: /* not working on silicon v1 */
  89                 return BOOT_DEVICE_MMC2;
  90         case SD_MODE:
  91         case EMMC_MODE:
  92                 return BOOT_DEVICE_MMC1;
  93 #endif
  94 #ifdef CONFIG_SPL_DFU
  95         case USB_MODE:
  96                 return BOOT_DEVICE_DFU;
  97 #endif
  98 #ifdef CONFIG_SPL_SATA_SUPPORT
  99         case SW_SATA_MODE:
 100                 return BOOT_DEVICE_SATA;
 101 #endif
 102 #ifdef CONFIG_SPL_SPI_SUPPORT
 103         case QSPI_MODE_24BIT:
 104         case QSPI_MODE_32BIT:
 105                 return BOOT_DEVICE_SPI;
 106 #endif
 107         default:
 108                 printf("Invalid Boot Mode:0x%x\n", bootmode);
 109                 break;
 110         }
 111
 112         return 0;
 113 }
 114
 115 #ifdef CONFIG_SPL_OS_BOOT
 116 int spl_start_uboot(void)
 117 {
 118         return 0;
 119 }
 120 #endif
 121
 122 #ifdef CONFIG_SPL_LOAD_FIT
 123 int board_fit_config_name_match(const char *name)
 124 {
 125         /* Just empty function now - can't decide what to choose */
 126         debug("%s: %s\n", __func__, name);
 127
 128         return -1;
 129 }
 130 #endif