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| author | Kever Yang <kever.yang@rock-chips.com> | 2019-03-29 04:09:01 +0300 |
|---|---|---|
| committer | Philipp Tomsich <philipp.tomsich@theobroma-systems.com> | 2019-05-01 10:40:58 +0300 |
| commit | 86d0eca451229808ccb9e028558152476f73b24b (patch) | |
| tree | b1c9e684c2cebdb14a98a6b422fd4d9ee72a1e3d /arch/arm/mach-rockchip/rk3188 | |
| parent | 7f3eec03d59a0532579ba364e0ba1381feafb814 (diff) | |
| download | u-boot-86d0eca451229808ccb9e028558152476f73b24b.tar.xz | |
rockchip: rk3188: 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.
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Diffstat (limited to 'arch/arm/mach-rockchip/rk3188')
| -rw-r--r-- | arch/arm/mach-rockchip/rk3188/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/mach-rockchip/rk3188/rk3188.c | 36 |
2 files changed, 37 insertions, 0 deletions
diff --git a/arch/arm/mach-rockchip/rk3188/Makefile b/arch/arm/mach-rockchip/rk3188/Makefile index 7fa010405b..7dc123a3d2 100644 --- a/arch/arm/mach-rockchip/rk3188/Makefile +++ b/arch/arm/mach-rockchip/rk3188/Makefile @@ -6,5 +6,6 @@ ifndef CONFIG_TPL_BUILD obj-y += clk_rk3188.o +obj-y += rk3188.o obj-y += syscon_rk3188.o endif diff --git a/arch/arm/mach-rockchip/rk3188/rk3188.c b/arch/arm/mach-rockchip/rk3188/rk3188.c new file mode 100644 index 0000000000..933484e0df --- /dev/null +++ b/arch/arm/mach-rockchip/rk3188/rk3188.c @@ -0,0 +1,36 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * (C) Copyright 2019 Rockchip Electronics Co., Ltd + */ +#include <common.h> +#include <asm/io.h> +#include <asm/arch-rockchip/grf_rk3188.h> +#include <asm/arch-rockchip/hardware.h> + +#ifdef CONFIG_DEBUG_UART_BOARD_INIT +void board_debug_uart_init(void) +{ + /* Enable early UART on the RK3188 */ +#define GRF_BASE 0x20008000 + struct rk3188_grf * const grf = (void *)GRF_BASE; + enum { + GPIO1B1_SHIFT = 2, + GPIO1B1_MASK = 3, + GPIO1B1_GPIO = 0, + GPIO1B1_UART2_SOUT, + GPIO1B1_JTAG_TDO, + + GPIO1B0_SHIFT = 0, + GPIO1B0_MASK = 3, + GPIO1B0_GPIO = 0, + GPIO1B0_UART2_SIN, + GPIO1B0_JTAG_TDI, + }; + + rk_clrsetreg(&grf->gpio1b_iomux, + GPIO1B1_MASK << GPIO1B1_SHIFT | + GPIO1B0_MASK << GPIO1B0_SHIFT, + GPIO1B1_UART2_SOUT << GPIO1B1_SHIFT | + GPIO1B0_UART2_SIN << GPIO1B0_SHIFT); +} +#endif |