1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * (C) Copyright 2015 Google, Inc
4  */
5 
6 #include <common.h>
7 #include <clk.h>
8 #include <dm.h>
9 #include <ram.h>
10 #include <syscon.h>
11 #include <asm/gpio.h>
12 #include <asm/io.h>
13 #include <asm/arch/clock.h>
14 #include <asm/arch/grf_rk3188.h>
15 #include <asm/arch/periph.h>
16 #include <asm/arch/pmu_rk3288.h>
17 #include <asm/arch/boot_mode.h>
18 #include <dm/pinctrl.h>
19 
20 __weak int rk_board_late_init(void)
21 {
22 	return 0;
23 }
24 
25 int board_late_init(void)
26 {
27 	struct rk3188_grf *grf;
28 
29 	setup_boot_mode();
30 	grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
31 	if (IS_ERR(grf)) {
32 		pr_err("grf syscon returned %ld\n", PTR_ERR(grf));
33 	} else {
34 		/* enable noc remap to mimic legacy loaders */
35 		rk_clrsetreg(&grf->soc_con0,
36 			NOC_REMAP_MASK << NOC_REMAP_SHIFT,
37 			NOC_REMAP_MASK << NOC_REMAP_SHIFT);
38 	}
39 
40 	return rk_board_late_init();
41 }
42 
43 int board_init(void)
44 {
45 #if CONFIG_IS_ENABLED(ROCKCHIP_BACK_TO_BROM)
46 	struct udevice *pinctrl;
47 	int ret;
48 
49 	/*
50 	 * We need to implement sdcard iomux here for the further
51 	 * initialization, otherwise, it'll hit sdcard command sending
52 	 * timeout exception.
53 	 */
54 	ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
55 	if (ret) {
56 		debug("%s: Cannot find pinctrl device\n", __func__);
57 		goto err;
58 	}
59 	ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_SDCARD);
60 	if (ret) {
61 		debug("%s: Failed to set up SD card\n", __func__);
62 		goto err;
63 	}
64 
65 	return 0;
66 err:
67 	printf("board_init: Error %d\n", ret);
68 
69 	/* No way to report error here */
70 	hang();
71 
72 	return -1;
73 #else
74 	return 0;
75 #endif
76 }
77 
78 #ifndef CONFIG_SYS_DCACHE_OFF
79 void enable_caches(void)
80 {
81 	/* Enable D-cache. I-cache is already enabled in start.S */
82 	dcache_enable();
83 }
84 #endif
85