33 lines
733 B
C
33 lines
733 B
C
/*
|
|
* Copyright (c) 2017 Rockchip Electronics Co., Ltd
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
#include <asm/io.h>
|
|
#include <asm/arch/bootrom.h>
|
|
#include <asm/arch/hardware.h>
|
|
#include <asm/arch/grf_rk3036.h>
|
|
#define GRF_BASE 0x20008000
|
|
|
|
#ifdef CONFIG_SPL_BUILD
|
|
int arch_cpu_init(void)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
void board_debug_uart_init(void)
|
|
{
|
|
struct rk3036_grf * const grf = (void *)GRF_BASE;
|
|
/*
|
|
* NOTE: sd card and debug uart use same iomux in rk3036,
|
|
* so if you enable uart,
|
|
* you can not boot from sdcard
|
|
*/
|
|
rk_clrsetreg(&grf->gpio1c_iomux,
|
|
GPIO1C3_MASK << GPIO1C3_SHIFT |
|
|
GPIO1C2_MASK << GPIO1C2_SHIFT,
|
|
GPIO1C3_UART2_SOUT << GPIO1C3_SHIFT |
|
|
GPIO1C2_UART2_SIN << GPIO1C2_SHIFT);
|
|
|
|
}
|