blob: 2671994a2ad32fbc85365cadf6d76abc64177ad7 [file] [log] [blame]
/*
* Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <arch_helpers.h>
#include <assert.h>
#include <bl_common.h>
#include <console.h>
#include <debug.h>
#include <desc_image_load.h>
#include <dw_mmc.h>
#include <emmc.h>
#include <errno.h>
#include <generic_delay_timer.h>
#include <mmio.h>
#include <optee_utils.h>
#include <partition/partition.h>
#include <platform.h>
#include <string.h>
#include "hi3798cv200.h"
#include "plat_private.h"
/* Memory ranges for code and read only data sections */
#define BL2_RO_BASE (unsigned long)(&__RO_START__)
#define BL2_RO_LIMIT (unsigned long)(&__RO_END__)
/* Memory ranges for coherent memory section */
#define BL2_COHERENT_RAM_BASE (unsigned long)(&__COHERENT_RAM_START__)
#define BL2_COHERENT_RAM_LIMIT (unsigned long)(&__COHERENT_RAM_END__)
static meminfo_t bl2_tzram_layout __aligned(CACHE_WRITEBACK_GRANULE);
#if !LOAD_IMAGE_V2
/*******************************************************************************
* This structure represents the superset of information that is passed to
* BL31, e.g. while passing control to it from BL2, bl31_params
* and other platform specific params
******************************************************************************/
typedef struct bl2_to_bl31_params_mem {
bl31_params_t bl31_params;
image_info_t bl31_image_info;
image_info_t bl32_image_info;
image_info_t bl33_image_info;
entry_point_info_t bl33_ep_info;
entry_point_info_t bl32_ep_info;
entry_point_info_t bl31_ep_info;
} bl2_to_bl31_params_mem_t;
static bl2_to_bl31_params_mem_t bl31_params_mem;
meminfo_t *bl2_plat_sec_mem_layout(void)
{
return &bl2_tzram_layout;
}
#ifdef SCP_BL2_BASE
void bl2_plat_get_scp_bl2_meminfo(meminfo_t *scp_bl2_meminfo)
{
/*
* This platform has no SCP_BL2 yet
*/
}
#endif
#endif /* LOAD_IMAGE_V2 */
/*******************************************************************************
* Transfer SCP_BL2 from Trusted RAM using the SCP Download protocol.
* Return 0 on success, -1 otherwise.
******************************************************************************/
#if LOAD_IMAGE_V2
int plat_poplar_bl2_handle_scp_bl2(image_info_t *scp_bl2_image_info)
#else
int bl2_plat_handle_scp_bl2(struct image_info *scp_bl2_image_info)
#endif
{
/*
* This platform has no SCP_BL2 yet
*/
return 0;
}
/*******************************************************************************
* Gets SPSR for BL32 entry
******************************************************************************/
uint32_t poplar_get_spsr_for_bl32_entry(void)
{
/*
* The Secure Payload Dispatcher service is responsible for
* setting the SPSR prior to entry into the BL3-2 image.
*/
return 0;
}
/*******************************************************************************
* Gets SPSR for BL33 entry
******************************************************************************/
#ifndef AARCH32
uint32_t poplar_get_spsr_for_bl33_entry(void)
{
unsigned long el_status;
unsigned int mode;
uint32_t spsr;
/* Figure out what mode we enter the non-secure world in */
el_status = read_id_aa64pfr0_el1() >> ID_AA64PFR0_EL2_SHIFT;
el_status &= ID_AA64PFR0_ELX_MASK;
mode = (el_status) ? MODE_EL2 : MODE_EL1;
/*
* TODO: Consider the possibility of specifying the SPSR in
* the FIP ToC and allowing the platform to have a say as
* well.
*/
spsr = SPSR_64(mode, MODE_SP_ELX, DISABLE_ALL_EXCEPTIONS);
return spsr;
}
#else
uint32_t poplar_get_spsr_for_bl33_entry(void)
{
unsigned int hyp_status, mode, spsr;
hyp_status = GET_VIRT_EXT(read_id_pfr1());
mode = (hyp_status) ? MODE32_hyp : MODE32_svc;
/*
* TODO: Consider the possibility of specifying the SPSR in
* the FIP ToC and allowing the platform to have a say as
* well.
*/
spsr = SPSR_MODE32(mode, plat_get_ns_image_entrypoint() & 0x1,
SPSR_E_LITTLE, DISABLE_ALL_EXCEPTIONS);
return spsr;
}
#endif /* AARCH32 */
#if LOAD_IMAGE_V2
int poplar_bl2_handle_post_image_load(unsigned int image_id)
{
int err = 0;
bl_mem_params_node_t *bl_mem_params = get_bl_mem_params_node(image_id);
#ifdef SPD_opteed
bl_mem_params_node_t *pager_mem_params = NULL;
bl_mem_params_node_t *paged_mem_params = NULL;
#endif
assert(bl_mem_params);
switch (image_id) {
#ifdef AARCH64
case BL32_IMAGE_ID:
#ifdef SPD_opteed
pager_mem_params = get_bl_mem_params_node(BL32_EXTRA1_IMAGE_ID);
assert(pager_mem_params);
paged_mem_params = get_bl_mem_params_node(BL32_EXTRA2_IMAGE_ID);
assert(paged_mem_params);
err = parse_optee_header(&bl_mem_params->ep_info,
&pager_mem_params->image_info,
&paged_mem_params->image_info);
if (err != 0) {
WARN("OPTEE header parse error.\n");
}
/*
* OP-TEE expect to receive DTB address in x2.
* This will be copied into x2 by dispatcher.
* Set this (arg3) if necessary
*/
/* bl_mem_params->ep_info.args.arg3 = PLAT_HIKEY_DT_BASE; */
#endif
bl_mem_params->ep_info.spsr = poplar_get_spsr_for_bl32_entry();
break;
#endif
case BL33_IMAGE_ID:
/* BL33 expects to receive the primary CPU MPID (through r0) */
bl_mem_params->ep_info.args.arg0 = 0xffff & read_mpidr();
bl_mem_params->ep_info.spsr = poplar_get_spsr_for_bl33_entry();
break;
#ifdef SCP_BL2_BASE
case SCP_BL2_IMAGE_ID:
/* The subsequent handling of SCP_BL2 is platform specific */
err = plat_poplar_bl2_handle_scp_bl2(&bl_mem_params->image_info);
if (err) {
WARN("Failure in platform-specific handling of SCP_BL2 image.\n");
}
break;
#endif
default:
/* Do nothing in default case */
break;
}
return err;
}
/*******************************************************************************
* This function can be used by the platforms to update/use image
* information for given `image_id`.
******************************************************************************/
int bl2_plat_handle_post_image_load(unsigned int image_id)
{
return poplar_bl2_handle_post_image_load(image_id);
}
#else /* LOAD_IMAGE_V2 */
bl31_params_t *bl2_plat_get_bl31_params(void)
{
bl31_params_t *bl2_to_bl31_params = NULL;
/*
* Initialise the memory for all the arguments that needs to
* be passed to BL3-1
*/
memset(&bl31_params_mem, 0, sizeof(bl2_to_bl31_params_mem_t));
/* Assign memory for TF related information */
bl2_to_bl31_params = &bl31_params_mem.bl31_params;
SET_PARAM_HEAD(bl2_to_bl31_params, PARAM_BL31, VERSION_1, 0);
/* Fill BL3-1 related information */
bl2_to_bl31_params->bl31_image_info = &bl31_params_mem.bl31_image_info;
SET_PARAM_HEAD(bl2_to_bl31_params->bl31_image_info,
PARAM_IMAGE_BINARY, VERSION_1, 0);
/* Fill BL3-2 related information if it exists */
#ifdef BL32_BASE
bl2_to_bl31_params->bl32_ep_info = &bl31_params_mem.bl32_ep_info;
SET_PARAM_HEAD(bl2_to_bl31_params->bl32_ep_info, PARAM_EP,
VERSION_1, 0);
bl2_to_bl31_params->bl32_image_info = &bl31_params_mem.bl32_image_info;
SET_PARAM_HEAD(bl2_to_bl31_params->bl32_image_info, PARAM_IMAGE_BINARY,
VERSION_1, 0);
#endif
/* Fill BL3-3 related information */
bl2_to_bl31_params->bl33_ep_info = &bl31_params_mem.bl33_ep_info;
SET_PARAM_HEAD(bl2_to_bl31_params->bl33_ep_info,
PARAM_EP, VERSION_1, 0);
/* BL3-3 expects to receive the primary CPU MPID (through x0) */
bl2_to_bl31_params->bl33_ep_info->args.arg0 = 0xffff & read_mpidr();
bl2_to_bl31_params->bl33_image_info = &bl31_params_mem.bl33_image_info;
SET_PARAM_HEAD(bl2_to_bl31_params->bl33_image_info,
PARAM_IMAGE_BINARY, VERSION_1, 0);
return bl2_to_bl31_params;
}
struct entry_point_info *bl2_plat_get_bl31_ep_info(void)
{
#if DEBUG
bl31_params_mem.bl31_ep_info.args.arg1 = POPLAR_BL31_PLAT_PARAM_VAL;
#endif
return &bl31_params_mem.bl31_ep_info;
}
void bl2_plat_set_bl31_ep_info(image_info_t *image,
entry_point_info_t *bl31_ep_info)
{
SET_SECURITY_STATE(bl31_ep_info->h.attr, SECURE);
bl31_ep_info->spsr = SPSR_64(MODE_EL3, MODE_SP_ELX,
DISABLE_ALL_EXCEPTIONS);
}
/*******************************************************************************
* Before calling this function BL32 is loaded in memory and its entrypoint
* is set by load_image. This is a placeholder for the platform to change
* the entrypoint of BL32 and set SPSR and security state.
* On Poplar we only set the security state of the entrypoint
******************************************************************************/
#ifdef BL32_BASE
void bl2_plat_set_bl32_ep_info(image_info_t *bl32_image_info,
entry_point_info_t *bl32_ep_info)
{
SET_SECURITY_STATE(bl32_ep_info->h.attr, SECURE);
/*
* The Secure Payload Dispatcher service is responsible for
* setting the SPSR prior to entry into the BL32 image.
*/
bl32_ep_info->spsr = 0;
}
/*******************************************************************************
* Populate the extents of memory available for loading BL32
******************************************************************************/
void bl2_plat_get_bl32_meminfo(meminfo_t *bl32_meminfo)
{
/*
* Populate the extents of memory available for loading BL32.
*/
bl32_meminfo->total_base = BL32_BASE;
bl32_meminfo->free_base = BL32_BASE;
bl32_meminfo->total_size =
(TSP_SEC_MEM_BASE + TSP_SEC_MEM_SIZE) - BL32_BASE;
bl32_meminfo->free_size =
(TSP_SEC_MEM_BASE + TSP_SEC_MEM_SIZE) - BL32_BASE;
}
#endif /* BL32_BASE */
void bl2_plat_set_bl33_ep_info(image_info_t *image,
entry_point_info_t *bl33_ep_info)
{
SET_SECURITY_STATE(bl33_ep_info->h.attr, NON_SECURE);
bl33_ep_info->spsr = poplar_get_spsr_for_bl33_entry();
bl33_ep_info->args.arg2 = image->image_size;
}
void bl2_plat_flush_bl31_params(void)
{
flush_dcache_range((unsigned long)&bl31_params_mem,
sizeof(bl2_to_bl31_params_mem_t));
}
void bl2_plat_get_bl33_meminfo(meminfo_t *bl33_meminfo)
{
bl33_meminfo->total_base = DDR_BASE;
bl33_meminfo->total_size = DDR_SIZE;
bl33_meminfo->free_base = DDR_BASE;
bl33_meminfo->free_size = DDR_SIZE;
}
#endif /* LOAD_IMAGE_V2 */
void bl2_early_platform_setup(meminfo_t *mem_layout)
{
#if !POPLAR_RECOVERY
dw_mmc_params_t params = EMMC_INIT_PARAMS(POPLAR_EMMC_DESC_BASE);
#endif
console_init(PL011_UART0_BASE, PL011_UART0_CLK_IN_HZ, PL011_BAUDRATE);
/* Enable arch timer */
generic_delay_timer_init();
bl2_tzram_layout = *mem_layout;
#if !POPLAR_RECOVERY
/* SoC-specific emmc register are initialized/configured by bootrom */
INFO("BL2: initializing emmc\n");
dw_mmc_init(&params);
#endif
plat_io_setup();
}
void bl2_plat_arch_setup(void)
{
plat_configure_mmu_el1(bl2_tzram_layout.total_base,
bl2_tzram_layout.total_size,
BL2_RO_BASE,
BL2_RO_LIMIT,
BL2_COHERENT_RAM_BASE,
BL2_COHERENT_RAM_LIMIT);
}
void bl2_platform_setup(void)
{
}
uintptr_t plat_get_ns_image_entrypoint(void)
{
#ifdef PRELOADED_BL33_BASE
return PRELOADED_BL33_BASE;
#else
return PLAT_POPLAR_NS_IMAGE_OFFSET;
#endif
}