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