1 /*
2  * Copyright (c) 2017 Andy Yan
3  *
4  * SPDX-License-Identifier:     GPL-2.0+
5  */
6 #include <common.h>
7 #include <asm/io.h>
8 #include <fdtdec.h>
9 #include <asm/arch/clock.h>
10 #include <asm/arch/grf_rk3368.h>
11 
12 DECLARE_GLOBAL_DATA_PTR;
13 
14 int mach_cpu_init(void)
15 {
16 	struct rk3368_pmu_grf *pmugrf;
17 	int node;
18 
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");
21 
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);
29 	return 0;
30 }
31 
32 int board_init(void)
33 {
34 	return 0;
35 }
36