u-boot/arch/arm/mach-rockchip/rk3288/rk3288.c
Kever Yang e83e885e53 rockchip: rk3288: add board_debug_uart_init()
Use board_debug_uart_init() for UART iomux init instead of
do it in board_init_f, and move the function to soc file so
that we can find all the soc/board setting in soc file and
use a common board file for all rockchip SoCs later.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2019-05-01 09:40:58 +02:00

33 lines
801 B
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2016 Rockchip Electronics Co., Ltd
*/
#include <asm/io.h>
#include <asm/arch-rockchip/hardware.h>
#include <asm/arch-rockchip/grf_rk3288.h>
#define GRF_BASE 0xff770000
int arch_cpu_init(void)
{
/* We do some SoC one time setting here. */
struct rk3288_grf * const grf = (void *)GRF_BASE;
/* Use rkpwm by default */
rk_setreg(&grf->soc_con2, 1 << 0);
return 0;
}
#ifdef CONFIG_DEBUG_UART_BOARD_INIT
void board_debug_uart_init(void)
{
/* Enable early UART on the RK3288 */
struct rk3288_grf * const grf = (void *)GRF_BASE;
rk_clrsetreg(&grf->gpio7ch_iomux, GPIO7C7_MASK << GPIO7C7_SHIFT |
GPIO7C6_MASK << GPIO7C6_SHIFT,
GPIO7C7_UART2DBG_SOUT << GPIO7C7_SHIFT |
GPIO7C6_UART2DBG_SIN << GPIO7C6_SHIFT);
}
#endif