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https://github.com/ARM-software/arm-trusted-firmware.git
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649c48f5dc
Ensure (where possible) that switch statements in plat comply with MISRA rules 16.1 - 16.7. Change-Id: Ie4a7d2fd10f6141c0cfb89317ea28a755391622f Signed-off-by: Jonathan Wright <jonathan.wright@arm.com>
377 lines
11 KiB
C
377 lines
11 KiB
C
/*
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* Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <arch_helpers.h>
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#include <assert.h>
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#include <bl_common.h>
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#include <console.h>
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#include <debug.h>
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#include <desc_image_load.h>
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#include <dw_mmc.h>
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#include <emmc.h>
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#include <errno.h>
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#include <generic_delay_timer.h>
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#include <mmio.h>
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#include <optee_utils.h>
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#include <partition/partition.h>
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#include <platform.h>
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#include <string.h>
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#include "hi3798cv200.h"
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#include "plat_private.h"
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/* Memory ranges for code and read only data sections */
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#define BL2_RO_BASE (unsigned long)(&__RO_START__)
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#define BL2_RO_LIMIT (unsigned long)(&__RO_END__)
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/* Memory ranges for coherent memory section */
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#define BL2_COHERENT_RAM_BASE (unsigned long)(&__COHERENT_RAM_START__)
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#define BL2_COHERENT_RAM_LIMIT (unsigned long)(&__COHERENT_RAM_END__)
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static meminfo_t bl2_tzram_layout __aligned(CACHE_WRITEBACK_GRANULE);
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#if !LOAD_IMAGE_V2
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/*******************************************************************************
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* This structure represents the superset of information that is passed to
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* BL31, e.g. while passing control to it from BL2, bl31_params
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* and other platform specific params
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******************************************************************************/
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typedef struct bl2_to_bl31_params_mem {
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bl31_params_t bl31_params;
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image_info_t bl31_image_info;
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image_info_t bl32_image_info;
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image_info_t bl33_image_info;
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entry_point_info_t bl33_ep_info;
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entry_point_info_t bl32_ep_info;
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entry_point_info_t bl31_ep_info;
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} bl2_to_bl31_params_mem_t;
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static bl2_to_bl31_params_mem_t bl31_params_mem;
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meminfo_t *bl2_plat_sec_mem_layout(void)
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{
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return &bl2_tzram_layout;
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}
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#ifdef SCP_BL2_BASE
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void bl2_plat_get_scp_bl2_meminfo(meminfo_t *scp_bl2_meminfo)
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{
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/*
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* This platform has no SCP_BL2 yet
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*/
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}
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#endif
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#endif /* LOAD_IMAGE_V2 */
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/*******************************************************************************
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* Transfer SCP_BL2 from Trusted RAM using the SCP Download protocol.
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* Return 0 on success, -1 otherwise.
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******************************************************************************/
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#if LOAD_IMAGE_V2
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int plat_poplar_bl2_handle_scp_bl2(image_info_t *scp_bl2_image_info)
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#else
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int bl2_plat_handle_scp_bl2(struct image_info *scp_bl2_image_info)
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#endif
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{
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/*
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* This platform has no SCP_BL2 yet
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*/
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return 0;
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}
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/*******************************************************************************
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* Gets SPSR for BL32 entry
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******************************************************************************/
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uint32_t poplar_get_spsr_for_bl32_entry(void)
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{
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/*
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* The Secure Payload Dispatcher service is responsible for
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* setting the SPSR prior to entry into the BL3-2 image.
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*/
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return 0;
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}
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/*******************************************************************************
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* Gets SPSR for BL33 entry
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******************************************************************************/
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#ifndef AARCH32
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uint32_t poplar_get_spsr_for_bl33_entry(void)
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{
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unsigned long el_status;
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unsigned int mode;
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uint32_t spsr;
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/* Figure out what mode we enter the non-secure world in */
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el_status = read_id_aa64pfr0_el1() >> ID_AA64PFR0_EL2_SHIFT;
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el_status &= ID_AA64PFR0_ELX_MASK;
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mode = (el_status) ? MODE_EL2 : MODE_EL1;
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/*
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* TODO: Consider the possibility of specifying the SPSR in
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* the FIP ToC and allowing the platform to have a say as
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* well.
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*/
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spsr = SPSR_64(mode, MODE_SP_ELX, DISABLE_ALL_EXCEPTIONS);
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return spsr;
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}
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#else
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uint32_t poplar_get_spsr_for_bl33_entry(void)
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{
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unsigned int hyp_status, mode, spsr;
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hyp_status = GET_VIRT_EXT(read_id_pfr1());
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mode = (hyp_status) ? MODE32_hyp : MODE32_svc;
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/*
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* TODO: Consider the possibility of specifying the SPSR in
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* the FIP ToC and allowing the platform to have a say as
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* well.
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*/
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spsr = SPSR_MODE32(mode, plat_get_ns_image_entrypoint() & 0x1,
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SPSR_E_LITTLE, DISABLE_ALL_EXCEPTIONS);
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return spsr;
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}
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#endif /* AARCH32 */
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#if LOAD_IMAGE_V2
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int poplar_bl2_handle_post_image_load(unsigned int image_id)
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{
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int err = 0;
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bl_mem_params_node_t *bl_mem_params = get_bl_mem_params_node(image_id);
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#ifdef SPD_opteed
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bl_mem_params_node_t *pager_mem_params = NULL;
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bl_mem_params_node_t *paged_mem_params = NULL;
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#endif
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assert(bl_mem_params);
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switch (image_id) {
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#ifdef AARCH64
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case BL32_IMAGE_ID:
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#ifdef SPD_opteed
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pager_mem_params = get_bl_mem_params_node(BL32_EXTRA1_IMAGE_ID);
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assert(pager_mem_params);
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paged_mem_params = get_bl_mem_params_node(BL32_EXTRA2_IMAGE_ID);
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assert(paged_mem_params);
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err = parse_optee_header(&bl_mem_params->ep_info,
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&pager_mem_params->image_info,
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&paged_mem_params->image_info);
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if (err != 0) {
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WARN("OPTEE header parse error.\n");
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}
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/*
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* OP-TEE expect to receive DTB address in x2.
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* This will be copied into x2 by dispatcher.
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* Set this (arg3) if necessary
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*/
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/* bl_mem_params->ep_info.args.arg3 = PLAT_HIKEY_DT_BASE; */
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#endif
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bl_mem_params->ep_info.spsr = poplar_get_spsr_for_bl32_entry();
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break;
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#endif
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case BL33_IMAGE_ID:
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/* BL33 expects to receive the primary CPU MPID (through r0) */
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bl_mem_params->ep_info.args.arg0 = 0xffff & read_mpidr();
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bl_mem_params->ep_info.spsr = poplar_get_spsr_for_bl33_entry();
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break;
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#ifdef SCP_BL2_BASE
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case SCP_BL2_IMAGE_ID:
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/* The subsequent handling of SCP_BL2 is platform specific */
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err = plat_poplar_bl2_handle_scp_bl2(&bl_mem_params->image_info);
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if (err) {
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WARN("Failure in platform-specific handling of SCP_BL2 image.\n");
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}
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break;
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#endif
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default:
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/* Do nothing in default case */
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break;
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}
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return err;
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}
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/*******************************************************************************
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* This function can be used by the platforms to update/use image
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* information for given `image_id`.
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******************************************************************************/
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int bl2_plat_handle_post_image_load(unsigned int image_id)
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{
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return poplar_bl2_handle_post_image_load(image_id);
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}
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#else /* LOAD_IMAGE_V2 */
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bl31_params_t *bl2_plat_get_bl31_params(void)
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{
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bl31_params_t *bl2_to_bl31_params = NULL;
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/*
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* Initialise the memory for all the arguments that needs to
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* be passed to BL3-1
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*/
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memset(&bl31_params_mem, 0, sizeof(bl2_to_bl31_params_mem_t));
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/* Assign memory for TF related information */
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bl2_to_bl31_params = &bl31_params_mem.bl31_params;
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SET_PARAM_HEAD(bl2_to_bl31_params, PARAM_BL31, VERSION_1, 0);
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/* Fill BL3-1 related information */
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bl2_to_bl31_params->bl31_image_info = &bl31_params_mem.bl31_image_info;
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SET_PARAM_HEAD(bl2_to_bl31_params->bl31_image_info,
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PARAM_IMAGE_BINARY, VERSION_1, 0);
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/* Fill BL3-2 related information if it exists */
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#ifdef BL32_BASE
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bl2_to_bl31_params->bl32_ep_info = &bl31_params_mem.bl32_ep_info;
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SET_PARAM_HEAD(bl2_to_bl31_params->bl32_ep_info, PARAM_EP,
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VERSION_1, 0);
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bl2_to_bl31_params->bl32_image_info = &bl31_params_mem.bl32_image_info;
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SET_PARAM_HEAD(bl2_to_bl31_params->bl32_image_info, PARAM_IMAGE_BINARY,
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VERSION_1, 0);
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#endif
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/* Fill BL3-3 related information */
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bl2_to_bl31_params->bl33_ep_info = &bl31_params_mem.bl33_ep_info;
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SET_PARAM_HEAD(bl2_to_bl31_params->bl33_ep_info,
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PARAM_EP, VERSION_1, 0);
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/* BL3-3 expects to receive the primary CPU MPID (through x0) */
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bl2_to_bl31_params->bl33_ep_info->args.arg0 = 0xffff & read_mpidr();
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bl2_to_bl31_params->bl33_image_info = &bl31_params_mem.bl33_image_info;
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SET_PARAM_HEAD(bl2_to_bl31_params->bl33_image_info,
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PARAM_IMAGE_BINARY, VERSION_1, 0);
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return bl2_to_bl31_params;
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}
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struct entry_point_info *bl2_plat_get_bl31_ep_info(void)
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{
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#if DEBUG
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bl31_params_mem.bl31_ep_info.args.arg1 = POPLAR_BL31_PLAT_PARAM_VAL;
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#endif
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return &bl31_params_mem.bl31_ep_info;
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}
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void bl2_plat_set_bl31_ep_info(image_info_t *image,
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entry_point_info_t *bl31_ep_info)
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{
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SET_SECURITY_STATE(bl31_ep_info->h.attr, SECURE);
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bl31_ep_info->spsr = SPSR_64(MODE_EL3, MODE_SP_ELX,
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DISABLE_ALL_EXCEPTIONS);
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}
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/*******************************************************************************
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* Before calling this function BL32 is loaded in memory and its entrypoint
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* is set by load_image. This is a placeholder for the platform to change
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* the entrypoint of BL32 and set SPSR and security state.
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* On Poplar we only set the security state of the entrypoint
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******************************************************************************/
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#ifdef BL32_BASE
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void bl2_plat_set_bl32_ep_info(image_info_t *bl32_image_info,
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entry_point_info_t *bl32_ep_info)
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{
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SET_SECURITY_STATE(bl32_ep_info->h.attr, SECURE);
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/*
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* The Secure Payload Dispatcher service is responsible for
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* setting the SPSR prior to entry into the BL32 image.
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*/
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bl32_ep_info->spsr = 0;
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}
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/*******************************************************************************
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* Populate the extents of memory available for loading BL32
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******************************************************************************/
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void bl2_plat_get_bl32_meminfo(meminfo_t *bl32_meminfo)
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{
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/*
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* Populate the extents of memory available for loading BL32.
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*/
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bl32_meminfo->total_base = BL32_BASE;
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bl32_meminfo->free_base = BL32_BASE;
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bl32_meminfo->total_size =
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(TSP_SEC_MEM_BASE + TSP_SEC_MEM_SIZE) - BL32_BASE;
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bl32_meminfo->free_size =
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(TSP_SEC_MEM_BASE + TSP_SEC_MEM_SIZE) - BL32_BASE;
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}
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#endif /* BL32_BASE */
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void bl2_plat_set_bl33_ep_info(image_info_t *image,
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entry_point_info_t *bl33_ep_info)
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{
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SET_SECURITY_STATE(bl33_ep_info->h.attr, NON_SECURE);
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bl33_ep_info->spsr = poplar_get_spsr_for_bl33_entry();
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bl33_ep_info->args.arg2 = image->image_size;
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}
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void bl2_plat_flush_bl31_params(void)
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{
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flush_dcache_range((unsigned long)&bl31_params_mem,
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sizeof(bl2_to_bl31_params_mem_t));
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}
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void bl2_plat_get_bl33_meminfo(meminfo_t *bl33_meminfo)
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{
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bl33_meminfo->total_base = DDR_BASE;
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bl33_meminfo->total_size = DDR_SIZE;
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bl33_meminfo->free_base = DDR_BASE;
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bl33_meminfo->free_size = DDR_SIZE;
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}
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#endif /* LOAD_IMAGE_V2 */
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void bl2_early_platform_setup(meminfo_t *mem_layout)
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{
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#if !POPLAR_RECOVERY
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dw_mmc_params_t params = EMMC_INIT_PARAMS(POPLAR_EMMC_DESC_BASE);
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#endif
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console_init(PL011_UART0_BASE, PL011_UART0_CLK_IN_HZ, PL011_BAUDRATE);
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/* Enable arch timer */
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generic_delay_timer_init();
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bl2_tzram_layout = *mem_layout;
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#if !POPLAR_RECOVERY
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/* SoC-specific emmc register are initialized/configured by bootrom */
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INFO("BL2: initializing emmc\n");
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dw_mmc_init(¶ms);
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#endif
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plat_io_setup();
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}
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void bl2_plat_arch_setup(void)
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{
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plat_configure_mmu_el1(bl2_tzram_layout.total_base,
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bl2_tzram_layout.total_size,
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BL2_RO_BASE,
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BL2_RO_LIMIT,
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BL2_COHERENT_RAM_BASE,
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BL2_COHERENT_RAM_LIMIT);
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}
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void bl2_platform_setup(void)
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{
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}
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uintptr_t plat_get_ns_image_entrypoint(void)
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{
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#ifdef PRELOADED_BL33_BASE
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return PRELOADED_BL33_BASE;
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#else
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return PLAT_POPLAR_NS_IMAGE_OFFSET;
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#endif
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}
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