xref: /rk3399_ARM-atf/plat/rockchip/common/params_setup.c (revision c948f77136c42a92d0bb660543a3600c36dcf7f1) 
1 /*
2  * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
3  *
4  * SPDX-License-Identifier: BSD-3-Clause
5  */
6 
7 #include <assert.h>
8 #include <string.h>
9 
10 #include <common/bl_common.h>
11 #include <common/debug.h>
12 #include <drivers/console.h>
13 #include <drivers/gpio.h>
14 #include <lib/coreboot.h>
15 #include <lib/mmio.h>
16 #include <plat/common/platform.h>
17 
18 #include <plat_params.h>
19 #include <plat_private.h>
20 
21 static struct gpio_info param_reset;
22 static struct gpio_info param_poweroff;
23 static struct bl31_apio_param param_apio;
24 static struct gpio_info *rst_gpio;
25 static struct gpio_info *poweroff_gpio;
26 static struct gpio_info suspend_gpio[10];
27 uint32_t suspend_gpio_cnt;
28 static struct apio_info *suspend_apio;
29 
30 struct gpio_info *plat_get_rockchip_gpio_reset(void)
31 {
32 	return rst_gpio;
33 }
34 
35 struct gpio_info *plat_get_rockchip_gpio_poweroff(void)
36 {
37 	return poweroff_gpio;
38 }
39 
40 struct gpio_info *plat_get_rockchip_suspend_gpio(uint32_t *count)
41 {
42 	*count = suspend_gpio_cnt;
43 
44 	return &suspend_gpio[0];
45 }
46 
47 struct apio_info *plat_get_rockchip_suspend_apio(void)
48 {
49 	return suspend_apio;
50 }
51 
52 void params_early_setup(void *plat_param_from_bl2)
53 {
54 	struct bl31_plat_param *bl2_param;
55 	struct bl31_gpio_param *gpio_param;
56 
57 	/* keep plat parameters for later processing if need */
58 	bl2_param = (struct bl31_plat_param *)plat_param_from_bl2;
59 	while (bl2_param) {
60 		switch (bl2_param->type) {
61 		case PARAM_RESET:
62 			gpio_param = (struct bl31_gpio_param *)bl2_param;
63 			memcpy(&param_reset, &gpio_param->gpio,
64 			       sizeof(struct gpio_info));
65 			rst_gpio = &param_reset;
66 			break;
67 		case PARAM_POWEROFF:
68 			gpio_param = (struct bl31_gpio_param *)bl2_param;
69 			memcpy(&param_poweroff, &gpio_param->gpio,
70 				sizeof(struct gpio_info));
71 			poweroff_gpio = &param_poweroff;
72 			break;
73 		case PARAM_SUSPEND_GPIO:
74 			if (suspend_gpio_cnt >= ARRAY_SIZE(suspend_gpio)) {
75 				ERROR("exceed support suspend gpio number\n");
76 				break;
77 			}
78 			gpio_param = (struct bl31_gpio_param *)bl2_param;
79 			memcpy(&suspend_gpio[suspend_gpio_cnt],
80 			       &gpio_param->gpio,
81 			       sizeof(struct gpio_info));
82 			suspend_gpio_cnt++;
83 			break;
84 		case PARAM_SUSPEND_APIO:
85 			memcpy(&param_apio, bl2_param,
86 			       sizeof(struct bl31_apio_param));
87 			suspend_apio = &param_apio.apio;
88 			break;
89 #if COREBOOT
90 		case PARAM_COREBOOT_TABLE:
91 			coreboot_table_setup((void *)
92 				((struct bl31_u64_param *)bl2_param)->value);
93 			break;
94 #endif
95 		default:
96 			ERROR("not expected type found %lld\n",
97 			      bl2_param->type);
98 			break;
99 		}
100 		bl2_param = bl2_param->next;
101 	}
102 }
103