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/*
* Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <assert.h>
#include <common/bl_common.h>
#include <common/interrupt_props.h>
#include <drivers/arm/gicv2.h>
#include <lib/xlat_tables/xlat_mmu_helpers.h>
#include <plat/common/platform.h>
#include <platform_def.h>
#include "aml_private.h"
/*
* Placeholder variables for copying the arguments that have been passed to
* BL31 from BL2.
*/
static entry_point_info_t bl33_image_ep_info;
/*******************************************************************************
* Return a pointer to the 'entry_point_info' structure of the next image for
* the security state specified. BL33 corresponds to the non-secure image type
* while BL32 corresponds to the secure image type. A NULL pointer is returned
* if the image does not exist.
******************************************************************************/
entry_point_info_t *bl31_plat_get_next_image_ep_info(uint32_t type)
{
entry_point_info_t *next_image_info;
assert(type == NON_SECURE);
next_image_info = &bl33_image_ep_info;
/* None of the images can have 0x0 as the entrypoint. */
if (next_image_info->pc != 0U) {
return next_image_info;
} else {
return NULL;
}
}
/*******************************************************************************
* Perform any BL31 early platform setup. Here is an opportunity to copy
* parameters passed by the calling EL (S-EL1 in BL2 & S-EL3 in BL1) before
* they are lost (potentially). This needs to be done before the MMU is
* initialized so that the memory layout can be used while creating page
* tables. BL2 has flushed this information to memory, so we are guaranteed
* to pick up good data.
******************************************************************************/
struct gxbb_bl31_param {
param_header_t h;
image_info_t *bl31_image_info;
entry_point_info_t *bl32_ep_info;
image_info_t *bl32_image_info;
entry_point_info_t *bl33_ep_info;
image_info_t *bl33_image_info;
};
void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1,
u_register_t arg2, u_register_t arg3)
{
struct gxbb_bl31_param *from_bl2;
/* Initialize the console to provide early debug support */
aml_console_init();
/*
* In debug builds, we pass a special value in 'arg1' to verify platform
* parameters from BL2 to BL31. In release builds it's not used.
*/
assert(arg1 == AML_BL31_PLAT_PARAM_VAL);
/* Check that params passed from BL2 are not NULL. */
from_bl2 = (struct gxbb_bl31_param *) arg0;
/* Check params passed from BL2 are not NULL. */
assert(from_bl2 != NULL);
assert(from_bl2->h.type == PARAM_BL31);
assert(from_bl2->h.version >= VERSION_1);
/*
* Copy BL33 entry point information. It is stored in Secure RAM, in
* BL2's address space.
*/
bl33_image_ep_info = *from_bl2->bl33_ep_info;
if (bl33_image_ep_info.pc == 0U) {
ERROR("BL31: BL33 entrypoint not obtained from BL2\n");
panic();
}
}
void bl31_plat_arch_setup(void)
{
aml_setup_page_tables();
enable_mmu_el3(0);
}
/*******************************************************************************
* GICv2 driver setup information
******************************************************************************/
static const interrupt_prop_t gxbb_interrupt_props[] = {
INTR_PROP_DESC(IRQ_SEC_PHY_TIMER, GIC_HIGHEST_SEC_PRIORITY,
GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL),
INTR_PROP_DESC(IRQ_SEC_SGI_0, GIC_HIGHEST_SEC_PRIORITY,
GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL),
INTR_PROP_DESC(IRQ_SEC_SGI_1, GIC_HIGHEST_SEC_PRIORITY,
GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL),
INTR_PROP_DESC(IRQ_SEC_SGI_2, GIC_HIGHEST_SEC_PRIORITY,
GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL),
INTR_PROP_DESC(IRQ_SEC_SGI_3, GIC_HIGHEST_SEC_PRIORITY,
GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL),
INTR_PROP_DESC(IRQ_SEC_SGI_4, GIC_HIGHEST_SEC_PRIORITY,
GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL),
INTR_PROP_DESC(IRQ_SEC_SGI_5, GIC_HIGHEST_SEC_PRIORITY,
GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL),
INTR_PROP_DESC(IRQ_SEC_SGI_6, GIC_HIGHEST_SEC_PRIORITY,
GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL),
INTR_PROP_DESC(IRQ_SEC_SGI_7, GIC_HIGHEST_SEC_PRIORITY,
GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL),
};
static const gicv2_driver_data_t gxbb_gic_data = {
.gicd_base = AML_GICD_BASE,
.gicc_base = AML_GICC_BASE,
.interrupt_props = gxbb_interrupt_props,
.interrupt_props_num = ARRAY_SIZE(gxbb_interrupt_props),
};
void bl31_platform_setup(void)
{
aml_mhu_secure_init();
gicv2_driver_init(&gxbb_gic_data);
gicv2_distif_init();
gicv2_pcpu_distif_init();
gicv2_cpuif_enable();
aml_thermal_unknown();
}
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