1 // SPDX-License-Identifier: GPL-2.0+
3 * (C)Copyright 2016 Rockchip Electronics Co., Ltd
4 * Authors: Andy Yan <andy.yan@rock-chips.com>
10 #include <asm/global_data.h>
12 #include <asm/arch-rockchip/clock.h>
13 #include <asm/arch-rockchip/grf_rv1108.h>
14 #include <asm/arch-rockchip/hardware.h>
16 DECLARE_GLOBAL_DATA_PTR;
18 int board_early_init_f(void)
20 struct rv1108_grf *grf;
23 GPIO3C3_MASK = 3 << GPIO3C3_SHIFT,
26 GPIO3C2_MASK = 3 << GPIO3C2_SHIFT,
29 GPIO2D2_MASK = 3 << GPIO2D2_SHIFT,
31 GPIO2D2_UART2_SOUT_M0,
34 GPIO2D1_MASK = 3 << GPIO2D1_SHIFT,
39 grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
41 /*evb board use UART2 m0 for debug*/
42 rk_clrsetreg(&grf->gpio2d_iomux,
43 GPIO2D2_MASK | GPIO2D1_MASK,
44 GPIO2D2_UART2_SOUT_M0 << GPIO2D2_SHIFT |
45 GPIO2D1_UART2_SIN_M0 << GPIO2D1_SHIFT);
46 rk_clrreg(&grf->gpio3c_iomux, GPIO3C3_MASK | GPIO3C2_MASK);
53 gd->ram_size = 0x8000000;