1 /* 2 * Copyright (c) 2016-2018, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <assert.h> 8 9 #include <platform_def.h> 10 11 #include <common/bl_common.h> 12 #include <common/debug.h> 13 #include <drivers/console.h> 14 #include <drivers/generic_delay_timer.h> 15 #include <drivers/ti/uart/uart_16550.h> 16 #include <lib/coreboot.h> 17 #include <lib/mmio.h> 18 #include <plat_private.h> 19 #include <plat/common/platform.h> 20 21 static entry_point_info_t bl32_ep_info; 22 static entry_point_info_t bl33_ep_info; 23 24 /******************************************************************************* 25 * Return a pointer to the 'entry_point_info' structure of the next image for 26 * the security state specified. BL33 corresponds to the non-secure image type 27 * while BL32 corresponds to the secure image type. A NULL pointer is returned 28 * if the image does not exist. 29 ******************************************************************************/ 30 entry_point_info_t *bl31_plat_get_next_image_ep_info(uint32_t type) 31 { 32 entry_point_info_t *next_image_info; 33 34 next_image_info = (type == NON_SECURE) ? &bl33_ep_info : &bl32_ep_info; 35 36 /* None of the images on this platform can have 0x0 as the entrypoint */ 37 if (next_image_info->pc) 38 return next_image_info; 39 else 40 return NULL; 41 } 42 43 #pragma weak params_early_setup 44 void params_early_setup(void *plat_param_from_bl2) 45 { 46 } 47 48 /******************************************************************************* 49 * Perform any BL3-1 early platform setup. Here is an opportunity to copy 50 * parameters passed by the calling EL (S-EL1 in BL2 & EL3 in BL1) before they 51 * are lost (potentially). This needs to be done before the MMU is initialized 52 * so that the memory layout can be used while creating page tables. 53 * BL2 has flushed this information to memory, so we are guaranteed to pick up 54 * good data. 55 ******************************************************************************/ 56 void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1, 57 u_register_t arg2, u_register_t arg3) 58 { 59 static console_16550_t console; 60 struct rockchip_bl31_params *arg_from_bl2 = (struct rockchip_bl31_params *) arg0; 61 void *plat_params_from_bl2 = (void *) arg1; 62 63 params_early_setup(plat_params_from_bl2); 64 65 #if COREBOOT 66 if (coreboot_serial.type) 67 console_16550_register(coreboot_serial.baseaddr, 68 coreboot_serial.input_hertz, 69 coreboot_serial.baud, 70 &console); 71 #else 72 console_16550_register(rockchip_get_uart_base(), PLAT_RK_UART_CLOCK, 73 PLAT_RK_UART_BAUDRATE, &console); 74 #endif 75 76 VERBOSE("bl31_setup\n"); 77 78 /* Passing a NULL context is a critical programming error */ 79 assert(arg_from_bl2); 80 81 assert(arg_from_bl2->h.type == PARAM_BL31); 82 assert(arg_from_bl2->h.version >= VERSION_1); 83 84 bl32_ep_info = *arg_from_bl2->bl32_ep_info; 85 bl33_ep_info = *arg_from_bl2->bl33_ep_info; 86 } 87 88 /******************************************************************************* 89 * Perform any BL3-1 platform setup code 90 ******************************************************************************/ 91 void bl31_platform_setup(void) 92 { 93 generic_delay_timer_init(); 94 plat_rockchip_soc_init(); 95 96 /* Initialize the gic cpu and distributor interfaces */ 97 plat_rockchip_gic_driver_init(); 98 plat_rockchip_gic_init(); 99 plat_rockchip_pmu_init(); 100 } 101 102 /******************************************************************************* 103 * Perform the very early platform specific architectural setup here. At the 104 * moment this is only intializes the mmu in a quick and dirty way. 105 ******************************************************************************/ 106 void bl31_plat_arch_setup(void) 107 { 108 plat_cci_init(); 109 plat_cci_enable(); 110 plat_configure_mmu_el3(BL_CODE_BASE, 111 BL_COHERENT_RAM_END - BL_CODE_BASE, 112 BL_CODE_BASE, 113 BL_CODE_END, 114 BL_COHERENT_RAM_BASE, 115 BL_COHERENT_RAM_END); 116 } 117