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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2016 - 2017 Xilinx, Inc.
*
* Michal Simek <michal.simek@xilinx.com>
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/hardware.h>
#include <asm/arch/sys_proto.h>
/*
* atfhandoffparams
* Parameter bitfield encoding
* -----------------------------------------------------------------------------
* Exec State 0 0 -> Aarch64, 1-> Aarch32
* endianness 1 0 -> LE, 1 -> BE
* secure (TZ) 2 0 -> Non secure, 1 -> secure
* EL 3:4 00 -> EL0, 01 -> EL1, 10 -> EL2, 11 -> EL3
* CPU# 5:6 00 -> A53_0, 01 -> A53_1, 10 -> A53_2, 11 -> A53_3
*/
#define FSBL_FLAGS_ESTATE_SHIFT 0
#define FSBL_FLAGS_ESTATE_MASK (1 << FSBL_FLAGS_ESTATE_SHIFT)
#define FSBL_FLAGS_ESTATE_A64 0
#define FSBL_FLAGS_ESTATE_A32 1
#define FSBL_FLAGS_ENDIAN_SHIFT 1
#define FSBL_FLAGS_ENDIAN_MASK (1 << FSBL_FLAGS_ENDIAN_SHIFT)
#define FSBL_FLAGS_ENDIAN_LE 0
#define FSBL_FLAGS_ENDIAN_BE 1
#define FSBL_FLAGS_TZ_SHIFT 2
#define FSBL_FLAGS_TZ_MASK (1 << FSBL_FLAGS_TZ_SHIFT)
#define FSBL_FLAGS_NON_SECURE 0
#define FSBL_FLAGS_SECURE 1
#define FSBL_FLAGS_EL_SHIFT 3
#define FSBL_FLAGS_EL_MASK (3 << FSBL_FLAGS_EL_SHIFT)
#define FSBL_FLAGS_EL0 0
#define FSBL_FLAGS_EL1 1
#define FSBL_FLAGS_EL2 2
#define FSBL_FLAGS_EL3 3
#define FSBL_FLAGS_CPU_SHIFT 5
#define FSBL_FLAGS_CPU_MASK (3 << FSBL_FLAGS_CPU_SHIFT)
#define FSBL_FLAGS_A53_0 0
#define FSBL_FLAGS_A53_1 1
#define FSBL_FLAGS_A53_2 2
#define FSBL_FLAGS_A53_3 3
#define FSBL_MAX_PARTITIONS 8
/* Structure corresponding to each partition entry */
struct xfsbl_partition {
uint64_t entry_point;
uint64_t flags;
};
/* Structure for handoff parameters to ARM Trusted Firmware (ATF) */
struct xfsbl_atf_handoff_params {
uint8_t magic[4];
uint32_t num_entries;
struct xfsbl_partition partition[FSBL_MAX_PARTITIONS];
};
#ifdef CONFIG_SPL_ATF
struct bl31_params *bl2_plat_get_bl31_params(uintptr_t bl32_entry,
uintptr_t bl33_entry,
uintptr_t fdt_addr)
{
struct xfsbl_atf_handoff_params *atfhandoffparams;
u32 index = 0;
atfhandoffparams = (void *)CONFIG_SPL_TEXT_BASE;
atfhandoffparams->magic[0] = 'X';
atfhandoffparams->magic[1] = 'L';
atfhandoffparams->magic[2] = 'N';
atfhandoffparams->magic[3] = 'X';
debug("Creating handoff:\n");
if (bl32_entry) {
debug(" to BL32 at 0x%x EL-1, Secure\n", (u32)bl32_entry);
atfhandoffparams->partition[index].entry_point = bl32_entry;
atfhandoffparams->partition[index].flags = FSBL_FLAGS_EL1 << FSBL_FLAGS_EL_SHIFT |
FSBL_FLAGS_SECURE << FSBL_FLAGS_TZ_SHIFT;
index++;
}
if (bl33_entry) {
debug(" to BL33 at 0x%x EL-2\n", (u32)bl33_entry);
atfhandoffparams->partition[index].entry_point = bl33_entry;
atfhandoffparams->partition[index].flags = FSBL_FLAGS_EL2 <<
FSBL_FLAGS_EL_SHIFT;
index++;
}
atfhandoffparams->num_entries = index;
writel(CONFIG_SPL_TEXT_BASE, &pmu_base->gen_storage6);
return NULL;
}
#endif
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