u-boot/board/rockchip/evb_px5/evb-px5.c

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/*
* Copyright (c) 2017 Andy Yan
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/io.h>
#include <fdtdec.h>
#include <asm/arch/clock.h>
#include <asm/arch/grf_rk3368.h>
DECLARE_GLOBAL_DATA_PTR;
int mach_cpu_init(void)
{
struct rk3368_pmu_grf *pmugrf;
int node;
node = fdt_node_offset_by_compatible(gd->fdt_blob, -1, "rockchip,rk3368-pmugrf");
pmugrf = (struct rk3368_pmu_grf *)fdtdec_get_addr(gd->fdt_blob, node, "reg");
rk_clrsetreg(&pmugrf->gpio0d_iomux,
GPIO0D0_MASK | GPIO0D1_MASK |
GPIO0D2_MASK | GPIO0D3_MASK,
GPIO0D0_GPIO << GPIO0D0_SHIFT |
GPIO0D1_GPIO << GPIO0D1_SHIFT |
GPIO0D2_UART4_SOUT << GPIO0D2_SHIFT |
GPIO0D3_UART4_SIN << GPIO0D3_SHIFT);
return 0;
}
int board_init(void)
{
return 0;
}