mirror of
https://github.com/AsahiLinux/u-boot
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5764acb261
This RISC-V ACLINT specification [1] defines a set of memory mapped devices which provide inter-processor interrupts (IPI) and timer functionalities for each HART on a multi-HART RISC-V platform. The RISC-V ACLINT specification is defined to be backward compatible with the SiFive CLINT specification, however the device tree binding is a new one. This change updates the sifive clint timer driver to support ACLINT mtimer device, using a per-driver data field to hold the mtimer offset to the base address encoded in the mtimer node. [1] https://github.com/riscv/riscv-aclint/blob/main/riscv-aclint.adoc Signed-off-by: Bin Meng <bmeng@tinylab.org> Reviewed-by: Rick Chen <rick@andestech.com>
50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2022 StarFive Technology Co., Ltd.
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* Author: Yanhong Wang<yanhong.wang@starfivetech.com>
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*
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*/
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#ifndef _STARFIVE_VISIONFIVE2_H
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#define _STARFIVE_VISIONFIVE2_H
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#define RISCV_MMODE_TIMERBASE 0x2000000
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#define RISCV_MMODE_TIMEROFF 0xbff8
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#define RISCV_MMODE_TIMER_FREQ 4000000
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#define RISCV_SMODE_TIMER_FREQ 4000000
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#define __io
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/* Environment options */
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#define BOOT_TARGET_DEVICES(func) \
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func(MMC, mmc, 1) \
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func(DHCP, dhcp, na)
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#include <config_distro_bootcmd.h>
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#define TYPE_GUID_SPL "2E54B353-1271-4842-806F-E436D6AF6985"
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#define TYPE_GUID_UBOOT "BC13C2FF-59E6-4262-A352-B275FD6F7172"
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#define TYPE_GUID_SYSTEM "EBD0A0A2-B9E5-4433-87C0-68B6B72699C7"
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#define PARTS_DEFAULT \
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"name=spl,start=2M,size=2M,type=${type_guid_gpt_loader1};" \
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"name=uboot,size=4MB,type=${type_guid_gpt_loader2};" \
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"name=system,size=-,bootable,type=${type_guid_gpt_system};"
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#define CFG_EXTRA_ENV_SETTINGS \
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"kernel_addr_r=0x40200000\0" \
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"kernel_comp_addr_r=0x88000000\0" \
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"kernel_comp_size=0x4000000\0" \
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"fdt_addr_r=0x46000000\0" \
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"scriptaddr=0x43900000\0" \
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"pxefile_addr_r=0x45900000\0" \
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"ramdisk_addr_r=0x46100000\0" \
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"type_guid_gpt_loader1=" TYPE_GUID_SPL "\0" \
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"type_guid_gpt_loader2=" TYPE_GUID_UBOOT "\0" \
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"type_guid_gpt_system=" TYPE_GUID_SYSTEM "\0" \
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"partitions=" PARTS_DEFAULT "\0" \
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"fdtfile=" CONFIG_DEFAULT_FDT_FILE "\0" \
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BOOTENV
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#endif /* _STARFIVE_VISIONFIVE2_H */
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