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Platform/RISC-V: Remove platform dependency from common platform lib

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This is the generic library for all RISC-V platforms. Remove
the dependencies of SiFive U540 platform.

Cc: Sunil V L <sunilvl@ventanamicro.com>
Cc: Daniel Schaefer <daniel.schaefer@hpe.com>
Signed-off-by: Abner Chang <abner.chang@hpe.com>
Reviewed-by: Daniel Schaefer <daniel.schaefer@hpe.com>
Reviewed-by: Sunil V L <sunilvl@ventanamicro.com>
This commit is contained in:
Abner Chang
2021-06-18 22:09:11 +08:00
parent 229cbf9fe8
commit 9688906edd
4 changed files with 19 additions and 86 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
Platform/RISC-V/PlatformPkg/Library/OpensbiPlatformLib/OpensbiPlatformLib.inf
View File

@@ -25,8 +25,6 @@
[Sources]
Platform.c
SifiveFu540.c
PlatformOverride.h
[Packages]
EmbeddedPkg/EmbeddedPkg.dec
@@ -45,6 +43,7 @@
PcdLib
PrintLib
RiscVCpuLib
RiscVSpecialPlatformLib
[FixedPcd]
gUefiRiscVPlatformPkgTokenSpaceGuid.PcdBootHartId

25
Platform/RISC-V/PlatformPkg/Library/OpensbiPlatformLib/Platform.c
View File

@@ -5,10 +5,16 @@
*
* Authors:
* Anup Patel <anup.patel@wdc.com>
Copyright (c) 2021, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
*/
#include <libfdt.h>
#include <PlatformOverride.h>
#include <Library/RiscVSpecialPlatformLib.h>
#include <sbi/riscv_asm.h>
#include <sbi/sbi_domain.h>
#include <sbi/sbi_hartmask.h>
@@ -24,11 +30,12 @@
#include <sbi_utils/ipi/fdt_ipi.h>
#include <sbi_utils/reset/fdt_reset.h>
extern const struct platform_override sifive_fu540;
static const struct platform_override *special_platforms[] = {
&sifive_fu540,
};
//
// SpecialPlatformArray and NumberOfSpecialPlatform are
// provided by RiscVSpecialPlatformLib library.
//
extern const struct platform_override *special_platforms[];
extern INTN NumberOfPlaformsInArray;
static const struct platform_override *generic_plat = NULL;
static const struct fdt_match *generic_plat_match = NULL;
@@ -39,7 +46,11 @@ static void fw_platform_lookup_special(void *fdt, int root_offset)
const struct platform_override *plat;
const struct fdt_match *match;
for (pos = 0; pos < array_size(special_platforms); pos++) {
if (special_platforms == NULL || NumberOfPlaformsInArray == 0) {
return;
}
for (pos = 0; pos < (int)NumberOfPlaformsInArray; pos++) {
plat = special_platforms[pos];
if (!plat->match_table)
continue;

30
Platform/RISC-V/PlatformPkg/Library/OpensbiPlatformLib/PlatformOverride.h
View File

@@ -1,30 +0,0 @@
/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2020 Western Digital Corporation or its affiliates.
*
* Authors:
* Anup Patel <anup.patel@wdc.com>
*/
#ifndef __PLATFORM_OVERRIDE_H__
#define __PLATFORM_OVERRIDE_H__
#include <sbi/sbi_types.h>
struct platform_override {
const struct fdt_match *match_table;
u64 (*features)(const struct fdt_match *match);
u64 (*tlbr_flush_limit)(const struct fdt_match *match);
int (*early_init)(bool cold_boot, const struct fdt_match *match);
int (*final_init)(bool cold_boot, const struct fdt_match *match);
void (*early_exit)(const struct fdt_match *match);
void (*final_exit)(const struct fdt_match *match);
int (*system_reset_check)(u32 reset_type, u32 reset_reason,
const struct fdt_match *match);
void (*system_reset)(u32 reset_type, u32 reset_reason,
const struct fdt_match *match);
int (*fdt_fixup)(void *fdt, const struct fdt_match *match);
};
#endif

47
Platform/RISC-V/PlatformPkg/Library/OpensbiPlatformLib/SifiveFu540.c
View File

@@ -1,47 +0,0 @@
/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2020 Western Digital Corporation or its affiliates.
*
* Authors:
* Anup Patel <anup.patel@wdc.com>
*/
#include <PlatformOverride.h>
#include <sbi_utils/fdt/fdt_helper.h>
#include <sbi_utils/fdt/fdt_fixup.h>
static u64 sifive_fu540_tlbr_flush_limit(const struct fdt_match *match)
{
/*
* The sfence.vma by virtual address does not work on
* SiFive FU540 so we return remote TLB flush limit as zero.
*/
return 0;
}
static int sifive_fu540_fdt_fixup(void *fdt, const struct fdt_match *match)
{
/*
* SiFive Freedom U540 has an erratum that prevents S-mode software
* to access a PMP protected region using 1GB page table mapping, so
* always add the no-map attribute on this platform.
*/
fdt_reserved_memory_nomap_fixup(fdt);
return 0;
}
static const struct fdt_match sifive_fu540_match[] = {
{ .compatible = "sifive,fu540" },
{ .compatible = "sifive,fu540g" },
{ .compatible = "sifive,fu540-c000" },
{ .compatible = "sifive,hifive-unleashed-a00" },
{ },
};
const struct platform_override sifive_fu540 = {
.match_table = sifive_fu540_match,
.tlbr_flush_limit = sifive_fu540_tlbr_flush_limit,
.fdt_fixup = sifive_fu540_fdt_fixup,
};