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// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2019 Kalray Inc.
*/
#include <common.h>
#include <asm/sfr.h>
#include <asm/sys_arch.h>
extern char __dtb_start[];
/* Default to builtin dtb */
void *boot_dtb = __dtb_start;
void kvx_lowlevel_setup(unsigned long r0, void *dtb_ptr)
{
uint64_t ev_val = (uint64_t) &_exception_start | EXCEPTION_STRIDE;
if (r0 == FSBL_PARAM_MAGIC) {
boot_dtb = dtb_ptr;
pr_info("Using DTB provided by FSBL\n");
}
/* Install exception handlers */
kvx_sfr_set(EV, ev_val);
/* Clear exception taken bit now that we setup our handlers */
kvx_sfr_set_field(PS, ET, 0);
/* Finally, make sure nobody disabled hardware trap before us */
kvx_sfr_set_field(PS, HTD, 0);
}
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