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rockchip: rk3036: add board_debug_uart_init()

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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.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
[Fixed whitespace error:]
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
This commit is contained in:
Kever Yang 2019-03-29 09:09:00 +08:00 committed by Philipp Tomsich
parent 2b2ff1bd87
commit 7f3eec03d5
4 changed files with 40 additions and 20 deletions
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20
arch/arm/mach-rockchip/rk3036-board-spl.c
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@ -7,30 +7,12 @@
#include <debug_uart.h>
#include <asm/io.h>
#include <asm/arch-rockchip/bootrom.h>
#include <asm/arch-rockchip/grf_rk3036.h>
#include <asm/arch-rockchip/hardware.h>
#include <asm/arch-rockchip/sdram_rk3036.h>
#include <asm/arch-rockchip/timer.h>
#include <asm/arch-rockchip/uart.h>
#define GRF_BASE 0x20008000
#define DEBUG_UART_BASE 0x20068000
void board_init_f(ulong dummy)
{
#ifdef EARLY_DEBUG
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);
#ifdef CONFIG_DEBUG_UART
debug_uart_init();
#endif
rockchip_timer_init();

1
arch/arm/mach-rockchip/rk3036/Makefile
View File

@ -10,4 +10,5 @@ ifndef CONFIG_SPL_BUILD
obj-y += syscon_rk3036.o
endif
obj-y += rk3036.o
obj-y += sdram_rk3036.o

38
arch/arm/mach-rockchip/rk3036/rk3036.c Normal file
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@ -0,0 +1,38 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2019 Rockchip Electronics Co., Ltd
*/
#include <asm/io.h>
#include <asm/arch-rockchip/grf_rk3036.h>
#include <asm/arch-rockchip/hardware.h>
#ifdef CONFIG_DEBUG_UART_BOARD_INIT
void board_debug_uart_init(void)
{
#define GRF_BASE 0x20008000
struct rk3036_grf * const grf = (void *)GRF_BASE;
enum {
GPIO1C3_SHIFT = 6,
GPIO1C3_MASK = 3 << GPIO1C3_SHIFT,
GPIO1C3_GPIO = 0,
GPIO1C3_MMC0_D1,
GPIO1C3_UART2_SOUT,
GPIO1C2_SHIFT = 4,
GPIO1C2_MASK = 3 << GPIO1C2_SHIFT,
GPIO1C2_GPIO = 0,
GPIO1C2_MMC0_D0,
GPIO1C2_UART2_SIN,
};
/*
* 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);
}
#endif

1
configs/kylin-rk3036_defconfig
View File

@ -12,7 +12,6 @@ CONFIG_DEBUG_UART_CLOCK=24000000
CONFIG_SPL_STACK_R_ADDR=0x80000
CONFIG_DEBUG_UART=y
CONFIG_NR_DRAM_BANKS=1
CONFIG_SPL_STACK_R_ADDR=0x80000
# CONFIG_ANDROID_BOOT_IMAGE is not set
CONFIG_DEFAULT_FDT_FILE="rk3036-kylin.dtb"
# CONFIG_DISPLAY_CPUINFO is not set