2 * (C) Copyright 2017 Rockchip Electronics Co., Ltd
4 * SPDX-License-Identifier: GPL-2.0+
8 #include <debug_uart.h>
13 #include <asm/arch/bootrom.h>
14 #include <asm/arch/cru_rk322x.h>
15 #include <asm/arch/grf_rk322x.h>
16 #include <asm/arch/hardware.h>
17 #include <asm/arch/timer.h>
18 #include <asm/arch/uart.h>
20 u32 spl_boot_device(void)
22 return BOOT_DEVICE_MMC1;
24 DECLARE_GLOBAL_DATA_PTR;
26 #define GRF_BASE 0x11000000
27 #define SGRF_BASE 0x10140000
29 #define DEBUG_UART_BASE 0x11030000
31 void board_debug_uart_init(void)
33 static struct rk322x_grf * const grf = (void *)GRF_BASE;
34 /* Enable early UART2 channel 1 on the RK322x */
35 rk_clrsetreg(&grf->gpio1b_iomux,
36 GPIO1B1_MASK | GPIO1B2_MASK,
37 GPIO1B2_UART21_SIN << GPIO1B2_SHIFT |
38 GPIO1B1_UART21_SOUT << GPIO1B1_SHIFT);
39 /* Set channel C as UART2 input */
40 rk_clrsetreg(&grf->con_iomux,
41 CON_IOMUX_UART2SEL_MASK,
42 CON_IOMUX_UART2SEL_21 << CON_IOMUX_UART2SEL_SHIFT);
44 void board_init_f(ulong dummy)
50 * Debug UART can be used from here if required:
55 * printascii("string");
58 printascii("SPL Init");
60 ret = spl_early_init();
62 debug("spl_early_init() failed: %d\n", ret);
66 rockchip_timer_init();
67 printf("timer init done\n");
68 ret = uclass_get_device(UCLASS_RAM, 0, &dev);
70 printf("DRAM init failed: %d\n", ret);
74 #if defined(CONFIG_ROCKCHIP_SPL_BACK_TO_BROM) && !defined(CONFIG_SPL_BOARD_INIT)