nuttx/boards/risc-v/litex/arty_a7/scripts/ld.script
Justin Erenkrantz 7298977894 risc-v/litex: Add 64-bit S-mode vexiiriscv support for litex.
Most of the peripheral support matches litex vexriscv-smp.

* arch/risc-v/Kconfig: Defer RV32 selection to core as litex board can do RV64.
* arch/risc-v/src/litex/Make.defs
  arch/risc-v/src/litex/hardware/litex_clint.h
  arch/risc-v/src/litex/hardware/litex_memorymap.h
  arch/risc-v/src/litex/hardware/litex_plic.h
  arch/risc-v/src/litex/litex_irq.c
  arch/risc-v/src/litex/litex_irq_dispatch.c: Add CONFIG_LITEX_CORE_VEXIIRISCV
  conditional where vexriscv_smp conditionals are.
* boards/risc-v/litex/arty_a7/configs/nsh-vexii/defconfig: New config.
* boards/risc-v/litex/arty_a7/include/vexii_irq.h: vexiiriscv irq defintion.
* boards/risc-v/litex/arty_a7/include/vexii_memorymap.h: vexiiriscv memory map.
* boards/risc-v/litex/arty_a7/scripts/ld.script: Define __global_pointer for
  toolchain happiness matching other RISC-V linker scripts.

(This commit was written with assistance from Claude Code.)

Signed-off-by: Justin Erenkrantz <justin@erenkrantz.com>
2025-12-30 10:18:57 -03:00

98 lines
2.9 KiB
Text

/****************************************************************************
* boards/risc-v/litex/arty_a7/scripts/ld.script
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
MEMORY
{
progmem (rx) : ORIGIN = 0x40000000, LENGTH = 8M
sram (rwx) : ORIGIN = 0x40800000, LENGTH = 256M - 8M
}
OUTPUT_ARCH("riscv")
ENTRY(_stext)
EXTERN(_vectors)
SECTIONS
{
.text : {
_stext = ABSOLUTE(.);
*(.vectors)
*(.text .text.*)
*(.fixup)
*(.gnu.warning)
*(.rodata .rodata.* .srodata .srodata.*)
*(.gnu.linkonce.t.*)
*(.glue_7)
*(.glue_7t)
*(.got)
*(.gcc_except_table)
*(.gnu.linkonce.r.*)
_etext = ABSOLUTE(.);
} > progmem
.init_section : ALIGN(4) {
_sinit = ABSOLUTE(.);
KEEP(*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))
KEEP(*(.init_array EXCLUDE_FILE(*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o) .ctors))
_einit = ABSOLUTE(.);
} > progmem
_eronly = ABSOLUTE(.);
.data : ALIGN(4) {
_sdata = ABSOLUTE(.);
*(.data .data.*)
*(.sdata .sdata.* .sdata2.*)
*(.gnu.linkonce.d.*)
*(.gnu.linkonce.s.*)
CONSTRUCTORS
. = ALIGN(4);
_edata = ABSOLUTE(.);
} > sram AT > progmem
PROVIDE(__global_pointer$ = _sdata + ((_edata - _sdata) / 2));
.bss : ALIGN(4) {
_sbss = ABSOLUTE(.);
*(.bss .bss.*)
*(.sbss .sbss.*)
*(.gnu.linkonce.b.*)
*(.gnu.linkonce.sb.*)
*(COMMON)
. = ALIGN(4);
_ebss = ABSOLUTE(.);
} > sram
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_info 0 : { *(.debug_info) }
.debug_line 0 : { *(.debug_line) }
.debug_pubnames 0 : { *(.debug_pubnames) }
.debug_aranges 0 : { *(.debug_aranges) }
}