forked from Mirrors/opensbi
2b93ce0954
To make the framework suit all Andes CPUs, change all occurrences of andes45 to andes. In addition, we fix some coding style problems and remove an unused macro in andes.h. Signed-off-by: Ben Zong-You Xie <ben717@andestech.com> Reviewed-by: Anup Patel <anup@brainfault.org>
64 lines
2.0 KiB
C
64 lines
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (C) 2022 Renesas Electronics Corp.
|
|
*
|
|
*/
|
|
|
|
#include <andes/andes_pma.h>
|
|
#include <andes/andes_pmu.h>
|
|
#include <andes/andes_sbi.h>
|
|
#include <platform_override.h>
|
|
#include <sbi/sbi_domain.h>
|
|
#include <sbi_utils/fdt/fdt_helper.h>
|
|
|
|
static const struct andes_pma_region renesas_rzfive_pma_regions[] = {
|
|
{
|
|
.pa = 0x58000000,
|
|
.size = 0x8000000,
|
|
.flags = ANDES_PMACFG_ETYP_NAPOT |
|
|
ANDES_PMACFG_MTYP_MEM_NON_CACHE_BUF,
|
|
.dt_populate = true,
|
|
.shared_dma = true,
|
|
.no_map = true,
|
|
.dma_default = true,
|
|
},
|
|
};
|
|
|
|
static int renesas_rzfive_final_init(bool cold_boot, const struct fdt_match *match)
|
|
{
|
|
return andes_pma_setup_regions(renesas_rzfive_pma_regions,
|
|
array_size(renesas_rzfive_pma_regions));
|
|
}
|
|
|
|
static int renesas_rzfive_early_init(bool cold_boot, const struct fdt_match *match)
|
|
{
|
|
/*
|
|
* Renesas RZ/Five RISC-V SoC has Instruction local memory and
|
|
* Data local memory (ILM & DLM) mapped between region 0x30000
|
|
* to 0x4FFFF. When a virtual address falls within this range,
|
|
* the MMU doesn't trigger a page fault; it assumes the virtual
|
|
* address is a physical address which can cause undesired
|
|
* behaviours for statically linked applications/libraries. To
|
|
* avoid this, add the ILM/DLM memory regions to the root domain
|
|
* region of the PMPU with permissions set to 0x0 for S/U modes
|
|
* so that any access to these regions gets blocked and for M-mode
|
|
* we grant full access.
|
|
*/
|
|
return sbi_domain_root_add_memrange(0x30000, 0x20000, 0x1000,
|
|
SBI_DOMAIN_MEMREGION_M_RWX);
|
|
}
|
|
|
|
static const struct fdt_match renesas_rzfive_match[] = {
|
|
{ .compatible = "renesas,r9a07g043f01" },
|
|
{ /* sentinel */ }
|
|
};
|
|
|
|
const struct platform_override renesas_rzfive = {
|
|
.match_table = renesas_rzfive_match,
|
|
.early_init = renesas_rzfive_early_init,
|
|
.final_init = renesas_rzfive_final_init,
|
|
.vendor_ext_provider = andes_sbi_vendor_ext_provider,
|
|
.extensions_init = andes_pmu_extensions_init,
|
|
.pmu_init = andes_pmu_init,
|
|
};
|