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