1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * (C) Copyright 2020 Rockchip Electronics Co., Ltd. 4 */ 5 6 #include <common.h> 7 #include <debug_uart.h> 8 #include <dm.h> 9 #include <ram.h> 10 #include <syscon.h> 11 #include <asm/io.h> 12 #include <asm/arch/clock.h> 13 #include <asm/arch/hardware.h> 14 #include <asm/arch/rk_atags.h> 15 #include <asm/arch/cru_rk3568.h> 16 #include <asm/arch/grf_rk3568.h> 17 18 #ifdef CONFIG_TPL_BUILD 19 #ifndef CONFIG_TPL_TINY_FRAMEWORK 20 #error please defined CONFIG_TPL_TINY_FRAMEWORK for RK3568 !!! 21 #endif 22 #endif 23 24 #ifdef CONFIG_TPL_BUILD 25 26 /* return: 0 = success, other = fail */ sdram_init(void)27int sdram_init(void) 28 { 29 return (-1); 30 } 31 #endif /* CONFIG_TPL_BUILD */ 32