Merge tag 'u-boot-imx-20190101' of git://www.denx.de/git/u-boot-imx
[oweals/u-boot.git] / board / elgin / elgin_rv1108 / elgin_rv1108.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * (C)Copyright 2016 Rockchip Electronics Co., Ltd
4  * Authors: Andy Yan <andy.yan@rock-chips.com>
5  */
6
7 #include <common.h>
8 #include <asm/io.h>
9 #include <fdtdec.h>
10 #include <asm/arch/grf_rv1108.h>
11 #include <asm/arch/hardware.h>
12 #include <asm/gpio.h>
13
14 DECLARE_GLOBAL_DATA_PTR;
15
16 int mach_cpu_init(void)
17 {
18         int node;
19         struct rv1108_grf *grf;
20         enum {
21                 GPIO3C3_SHIFT           = 6,
22                 GPIO3C3_MASK            = 3 << GPIO3C3_SHIFT,
23
24                 GPIO3C2_SHIFT           = 4,
25                 GPIO3C2_MASK            = 3 << GPIO3C2_SHIFT,
26
27                 GPIO2D2_SHIFT           = 4,
28                 GPIO2D2_MASK            = 3 << GPIO2D2_SHIFT,
29                 GPIO2D2_GPIO            = 0,
30                 GPIO2D2_UART2_SOUT_M0,
31
32                 GPIO2D1_SHIFT           = 2,
33                 GPIO2D1_MASK            = 3 << GPIO2D1_SHIFT,
34                 GPIO2D1_GPIO            = 0,
35                 GPIO2D1_UART2_SIN_M0,
36         };
37
38         node = fdt_node_offset_by_compatible(gd->fdt_blob, -1, "rockchip,rv1108-grf");
39         grf = (struct rv1108_grf *)fdtdec_get_addr(gd->fdt_blob, node, "reg");
40
41         /* Elgin 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);
47
48         return 0;
49 }
50
51 #define MODEM_ENABLE_GPIO 111
52
53 int board_init(void)
54 {
55         gpio_request(MODEM_ENABLE_GPIO, "modem_enable");
56         gpio_direction_output(MODEM_ENABLE_GPIO, 0);
57
58         return 0;
59 }
60
61 int dram_init(void)
62 {
63         gd->ram_size = 0x8000000;
64
65         return 0;
66 }
67
68 int dram_init_banksize(void)
69 {
70         gd->bd->bi_dram[0].start = 0x60000000;
71         gd->bd->bi_dram[0].size = 0x8000000;
72
73         return 0;
74 }