1 /* 2 * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are met: 6 * 7 * Redistributions of source code must retain the above copyright notice, this 8 * list of conditions and the following disclaimer. 9 * 10 * Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 14 * Neither the name of ARM nor the names of its contributors may be used 15 * to endorse or promote products derived from this software without specific 16 * prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #include <arm_gic.h> 32 #include <assert.h> 33 #include <bl_common.h> 34 #include <console.h> 35 #include <debug.h> 36 #include <gpio.h> 37 #include <mmio.h> 38 #include <platform.h> 39 #include <plat_params.h> 40 #include <plat_private.h> 41 #include <string.h> 42 43 static struct bl31_plat_param *bl31_params_head; 44 static struct bl31_gpio_param param_reset; 45 static struct bl31_gpio_param param_poweroff; 46 static struct gpio_info *rst_gpio; 47 static struct gpio_info *poweroff_gpio; 48 49 void *plat_get_rockchip_gpio_reset(void) 50 { 51 return rst_gpio; 52 } 53 54 void *plat_get_rockchip_gpio_poweroff(void) 55 { 56 return poweroff_gpio; 57 } 58 59 void params_early_setup(void *plat_param_from_bl2) 60 { 61 struct bl31_plat_param *param; 62 struct bl31_plat_param *bl2_param; 63 struct bl31_gpio_param *gpio_param; 64 65 /* keep plat parameters for later processing if need */ 66 bl2_param = (struct bl31_plat_param *)plat_param_from_bl2; 67 while (bl2_param) { 68 switch (bl2_param->type) { 69 case PARAM_RESET: 70 param = (struct bl31_plat_param *)¶m_reset; 71 memcpy((void *)param, (void *)bl2_param, 72 sizeof(struct bl31_gpio_param)); 73 gpio_param = (struct bl31_gpio_param *)param; 74 rst_gpio = &gpio_param->gpio; 75 break; 76 case PARAM_POWEROFF: 77 param = (struct bl31_plat_param *)¶m_poweroff; 78 memcpy((void *)param, (void *)bl2_param, 79 sizeof(struct bl31_gpio_param)); 80 gpio_param = (struct bl31_gpio_param *)param; 81 poweroff_gpio = &gpio_param->gpio; 82 break; 83 default: 84 NOTICE("not expected type found\n"); 85 return; /* don't continue if unexpected type found */ 86 } 87 param->next = bl31_params_head; 88 bl31_params_head = param; 89 bl2_param = bl2_param->next; 90 } 91 } 92