u-boot/arch/arm/cpu/armv8/zynqmp/handoff.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

86 lines
2.3 KiB
C

// 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_OS_BOOT
void handoff_setup(void)
{
struct xfsbl_atf_handoff_params *atfhandoffparams;
atfhandoffparams = (void *)CONFIG_SPL_TEXT_BASE;
atfhandoffparams->magic[0] = 'X';
atfhandoffparams->magic[1] = 'L';
atfhandoffparams->magic[2] = 'N';
atfhandoffparams->magic[3] = 'X';
atfhandoffparams->num_entries = 1;
atfhandoffparams->partition[0].entry_point = CONFIG_SYS_TEXT_BASE;
atfhandoffparams->partition[0].flags = FSBL_FLAGS_EL2 <<
FSBL_FLAGS_EL_SHIFT;
writel(CONFIG_SPL_TEXT_BASE, &pmu_base->gen_storage6);
}
#endif