2 * Copyright (c) 2017 Andy Yan
4 * SPDX-License-Identifier: GPL-2.0+
9 #include <asm/arch/clock.h>
10 #include <asm/arch/grf_rk3368.h>
12 DECLARE_GLOBAL_DATA_PTR;
14 int mach_cpu_init(void)
16 struct rk3368_pmu_grf *pmugrf;
19 node = fdt_node_offset_by_compatible(gd->fdt_blob, -1, "rockchip,rk3368-pmugrf");
20 pmugrf = (struct rk3368_pmu_grf *)fdtdec_get_addr(gd->fdt_blob, node, "reg");
22 rk_clrsetreg(&pmugrf->gpio0d_iomux,
23 GPIO0D0_MASK | GPIO0D1_MASK |
24 GPIO0D2_MASK | GPIO0D3_MASK,
25 GPIO0D0_GPIO << GPIO0D0_SHIFT |
26 GPIO0D1_GPIO << GPIO0D1_SHIFT |
27 GPIO0D2_UART4_SOUT << GPIO0D2_SHIFT |
28 GPIO0D3_UART4_SIN << GPIO0D3_SHIFT);