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(¶m_reset, &gpio_param->gpio, 62 sizeof(struct gpio_info)); 63 rst_gpio = ¶m_reset; 64 break; 65 case PARAM_POWEROFF: 66 gpio_param = (struct bl31_gpio_param *)bl2_param; 67 memcpy(¶m_poweroff, &gpio_param->gpio, 68 sizeof(struct gpio_info)); 69 poweroff_gpio = ¶m_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(¶m_apio, bl2_param, 84 sizeof(struct bl31_apio_param)); 85 suspend_apio = ¶m_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