blob: ff8e107dbf1f59a12c128d2dbe2250914b6b2f25 [file] [log] [blame]
/*
* Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <assert.h>
#include <errno.h>
#include <string.h>
#include <arch_helpers.h>
#include <common/bl_common.h>
#include <common/debug.h>
#include <common/desc_image_load.h>
#include <drivers/arm/pl011.h>
#include <drivers/generic_delay_timer.h>
#include <drivers/partition/partition.h>
#include <drivers/synopsys/dw_mmc.h>
#include <drivers/mmc.h>
#include <lib/mmio.h>
#include <lib/optee_utils.h>
#include <plat/common/platform.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);
static console_pl011_t console;
/*******************************************************************************
* Transfer SCP_BL2 from Trusted RAM using the SCP Download protocol.
* Return 0 on success, -1 otherwise.
******************************************************************************/
int plat_poplar_bl2_handle_scp_bl2(image_info_t *scp_bl2_image_info)
{
/*
* 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 */
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);
}
void bl2_early_platform_setup2(u_register_t arg0, u_register_t arg1,
u_register_t arg2, u_register_t arg3)
{
struct meminfo *mem_layout = (struct meminfo *)arg1;
#if !POPLAR_RECOVERY
struct mmc_device_info info;
dw_mmc_params_t params = EMMC_INIT_PARAMS(POPLAR_EMMC_DESC_BASE);
#endif
console_pl011_register(PL011_UART0_BASE, PL011_UART0_CLK_IN_HZ,
PL011_BAUDRATE, &console);
/* 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");
info.mmc_dev_type = MMC_IS_EMMC;
dw_mmc_init(&params, &info);
#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
}