arch/arm/mach-tegra/spl.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2012
   4  * NVIDIA Inc, <www.nvidia.com>
   5  *
   6  * Allen Martin <[email protected]>
   7  */
   8 #include <debug_uart.h>
   9 #include <log.h>
  10 #include <spl.h>
  11
  12 #include <asm/io.h>
  13 #include <asm/arch/clock.h>
  14 #include <asm/arch/pinmux.h>
  15 #include <asm/arch/tegra.h>
  16 #include <asm/arch-tegra/apb_misc.h>
  17 #include <asm/arch-tegra/board.h>
  18 #include <asm/spl.h>
  19 #include "cpu.h"
  20
  21 void spl_board_init(void)
  22 {
  23         struct apb_misc_pp_ctlr *apb_misc =
  24                                 (struct apb_misc_pp_ctlr *)NV_PA_APB_MISC_BASE;
  25
  26         /* enable JTAG */
  27         writel(0xC0, &apb_misc->cfg_ctl);
  28
  29         board_init_uart_f();
  30
  31         /* Initialize periph GPIOs */
  32         gpio_early_init_uart();
  33
  34         clock_early_init();
  35 #ifdef CONFIG_DEBUG_UART
  36         debug_uart_init();
  37 #endif
  38         preloader_console_init();
  39 }
  40
  41 u32 spl_boot_device(void)
  42 {
  43         return BOOT_DEVICE_RAM;
  44 }
  45
  46 void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
  47 {
  48         debug("image entry point: 0x%lX\n", spl_image->entry_point);
  49
  50         start_cpu((u32)spl_image->entry_point);
  51         halt_avp();
  52 }