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