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 secure_timer_init(void)27void 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 board_init_f(ulong dummy)36void 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 } 61