arch/arm/mach-rockchip/px30-board-tpl.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2019 Rockchip Electronics Co., Ltd
   4  */
   5
   6 #include <common.h>
   7 #include <debug_uart.h>
   8 #include <dm.h>
   9 #include <init.h>
  10 #include <ram.h>
  11 #include <spl.h>
  12 #include <version.h>
  13 #include <asm/io.h>
  14 #include <asm/arch-rockchip/bootrom.h>
  15 #include <asm/arch-rockchip/sdram_px30.h>
  16
  17 #define TIMER_LOAD_COUNT0       0x00
  18 #define TIMER_LOAD_COUNT1       0x04
  19 #define TIMER_CUR_VALUE0        0x08
  20 #define TIMER_CUR_VALUE1        0x0c
  21 #define TIMER_CONTROL_REG       0x10
  22
  23 #define TIMER_EN        0x1
  24 #define TIMER_FMODE     (0 << 1)
  25 #define TIMER_RMODE     (1 << 1)
  26
  27 void secure_timer_init(void)
  28 {
  29         writel(0, CONFIG_ROCKCHIP_STIMER_BASE + TIMER_CONTROL_REG);
  30         writel(0xffffffff, CONFIG_ROCKCHIP_STIMER_BASE + TIMER_LOAD_COUNT0);
  31         writel(0xffffffff, CONFIG_ROCKCHIP_STIMER_BASE + TIMER_LOAD_COUNT1);
  32         writel(TIMER_EN | TIMER_FMODE,
  33                CONFIG_ROCKCHIP_STIMER_BASE + TIMER_CONTROL_REG);
  34 }
  35
  36 void board_init_f(ulong dummy)
  37 {
  38         int ret;
  39
  40 #ifdef CONFIG_DEBUG_UART
  41         debug_uart_init();
  42         /*
  43          * Debug UART can be used from here if required:
  44          *
  45          * debug_uart_init();
  46          * printch('a');
  47          * printhex8(0x1234);
  48          * printascii("string");
  49          */
  50         printascii("U-Boot TPL board init\n");
  51 #endif
  52
  53         secure_timer_init();
  54         ret = sdram_init();
  55         if (ret)
  56                 printascii("sdram_init failed\n");
  57
  58         /* return to maskrom */
  59         back_to_bootrom(BROM_BOOT_NEXTSTAGE);
  60 }