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arm64/imx9: provide EL3 bootloader support for iMX9
This provides a capable bootloader that may be run from OCRAM. The OCRAM contains regions that are always zero, so the linker file avoids those with best effort. iMX9 infrastructure expects: - 0x20480000 (Start of OCRAM, AHAB) - 0x2049a000 (NuttX or SPL) - 0x204e0000 (ARM Trustzone, not used) When started from sd-card, the offsets are: - 0x1f000 with AHAB - 0xa000 without AHAB Signed-off-by: Eero Nurkkala <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,65 @@ | ||
| # | ||
| # This file is autogenerated: PLEASE DO NOT EDIT IT. | ||
| # | ||
| # You can use "make menuconfig" to make any modifications to the installed .config file. | ||
| # You can then do "make savedefconfig" to generate a new defconfig file that includes your | ||
| # modifications. | ||
| # | ||
| # CONFIG_STANDARD_SERIAL is not set | ||
| CONFIG_ARCH="arm64" | ||
| CONFIG_ARCH_ARM64=y | ||
| CONFIG_ARCH_BOARD="imx93-evk" | ||
| CONFIG_ARCH_BOARD_IMX93_EVK=y | ||
| CONFIG_ARCH_BOOT_EL3=y | ||
| CONFIG_ARCH_CHIP="imx9" | ||
| CONFIG_ARCH_CHIP_IMX93=y | ||
| CONFIG_ARCH_CHIP_IMX9=y | ||
| CONFIG_ARCH_INTERRUPTSTACK=4096 | ||
| CONFIG_ARM64_DCACHE_DISABLE=y | ||
| CONFIG_ARM64_DECODEFIQ=y | ||
| CONFIG_BUILTIN=y | ||
| CONFIG_DEBUG_ASSERTIONS=y | ||
| CONFIG_DEBUG_FEATURES=y | ||
| CONFIG_DEBUG_FULLOPT=y | ||
| CONFIG_DEBUG_SYMBOLS=y | ||
| CONFIG_DEFAULT_TASK_STACKSIZE=8192 | ||
| CONFIG_DEV_ZERO=y | ||
| CONFIG_EXAMPLES_HELLO=y | ||
| CONFIG_EXPERIMENTAL=y | ||
| CONFIG_FS_PROCFS=y | ||
| CONFIG_FS_ROMFS=y | ||
| CONFIG_HAVE_CXX=y | ||
| CONFIG_HAVE_CXXINITIALIZE=y | ||
| CONFIG_IDLETHREAD_STACKSIZE=8192 | ||
| CONFIG_IMX9_BOOTLOADER=y | ||
| CONFIG_IMX9_GPIO_IRQ=y | ||
| CONFIG_IMX9_LPUART1=y | ||
| CONFIG_INIT_ENTRYPOINT="nsh_main" | ||
| CONFIG_INTELHEX_BINARY=y | ||
| CONFIG_LPUART1_SERIAL_CONSOLE=y | ||
| CONFIG_MM_FILL_ALLOCATIONS=y | ||
| CONFIG_NSH_ARCHINIT=y | ||
| CONFIG_NSH_BUILTIN_APPS=y | ||
| CONFIG_NSH_FILEIOSIZE=512 | ||
| CONFIG_NSH_READLINE=y | ||
| CONFIG_PREALLOC_TIMERS=4 | ||
| CONFIG_RAMLOG=y | ||
| CONFIG_RAM_SIZE=548864 | ||
| CONFIG_RAM_START=0x2049a000 | ||
| CONFIG_RAW_BINARY=y | ||
| CONFIG_READLINE_CMD_HISTORY=y | ||
| CONFIG_RR_INTERVAL=200 | ||
| CONFIG_SCHED_HPWORK=y | ||
| CONFIG_SCHED_HPWORKPRIORITY=192 | ||
| CONFIG_SCHED_LPWORK=y | ||
| CONFIG_SCHED_LPWORKPRIORITY=50 | ||
| CONFIG_SPINLOCK=y | ||
| CONFIG_STACK_COLORATION=y | ||
| CONFIG_START_MONTH=3 | ||
| CONFIG_START_YEAR=2022 | ||
| CONFIG_SYMTAB_ORDEREDBYNAME=y | ||
| CONFIG_SYSTEM_NSH=y | ||
| CONFIG_SYSTEM_SYSTEM=y | ||
| CONFIG_SYSTEM_TIME64=y | ||
| CONFIG_TESTING_GETPRIME=y | ||
| CONFIG_TESTING_OSTEST=y |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,155 @@ | ||
| /**************************************************************************** | ||
| * boards/arm64/imx9/imx93-evk/scripts/ocramboot.ld | ||
| * | ||
| * 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. | ||
| * | ||
| ****************************************************************************/ | ||
|
|
||
| OUTPUT_ARCH(aarch64) | ||
|
|
||
| ENTRY(__start) | ||
| EXTERN(__start) | ||
|
|
||
| /* Memory is organized as follows: | ||
| * - ahab reserves memory from 2048k to 0x2049a000 | ||
| * - NuttX is compiled into 0x2049a000, ahab expects NuttX here | ||
| * - Heap memory is allocated from ocram end to idlestack top | ||
| */ | ||
|
|
||
| MEMORY | ||
| { | ||
| ocram (rx) : ORIGIN = 0x2049a000, LENGTH = 0x37ff0 | ||
| ocram_data (rw) : ORIGIN = 0x204e0000, LENGTH = 0x2000 | ||
| ocram_noload (rw) : ORIGIN = 0x204f0000, LENGTH = 0x30000 | ||
| } | ||
|
|
||
| PHDRS | ||
| { | ||
| /* R = 100, W = 010, X = 001 */ | ||
|
|
||
| text PT_LOAD FLAGS(5); /* RX */ | ||
| rodata PT_LOAD FLAGS(4); /* R */ | ||
| data PT_LOAD FLAGS(6); /* RW */ | ||
| } | ||
|
|
||
| SECTIONS | ||
| { | ||
| .text : | ||
| { | ||
| _stext = ABSOLUTE(.); /* Text section */ | ||
| *(.start .start.*) /* Place __start here */ | ||
| *(.text .text.*) | ||
| *(.text.cold) | ||
| *(.text.unlikely) | ||
| *(.fixup) | ||
| *(.gnu.warning) | ||
| } > ocram :text | ||
|
|
||
| .init_section : | ||
| { | ||
| _sinit = ABSOLUTE(.); | ||
| KEEP(*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*))) | ||
| KEEP(*(.init_array .ctors)) | ||
| _einit = ABSOLUTE(.); | ||
| } > ocram :text | ||
|
|
||
| /* Vector table must be page aligned */ | ||
|
|
||
| .vector : ALIGN(4096) | ||
| { | ||
| _vector_start = ABSOLUTE(.); | ||
| KEEP(*(.exc_vector_table)) | ||
| KEEP(*(".exc_vector_table.*")) | ||
| KEEP(*(.vectors)) | ||
| _vector_end = ABSOLUTE(.); | ||
| } > ocram :text | ||
|
|
||
| _etext = .; | ||
|
|
||
| .rodata : ALIGN(8) | ||
| { | ||
| _srodata = ABSOLUTE(.); /* Read-only data */ | ||
| *(.rodata .rodata.*) | ||
| *(.data.rel.ro) | ||
| *(.data.rel.ro.*) | ||
| } > ocram :rodata | ||
|
|
||
| _erodata = .; /* End of read-only data */ | ||
| _eronly = .; /* End of read-only data */ | ||
|
|
||
| .data : ALIGN(8) | ||
| { | ||
| _sdata = ABSOLUTE(.); | ||
| *(.data.page_aligned) | ||
| *(.data .data.*) | ||
| . = ALIGN(8); | ||
| *(.data.rel) | ||
| *(.data.rel.*) | ||
| CONSTRUCTORS | ||
| . = ALIGN(8); | ||
| _edata = ABSOLUTE(.); | ||
| } > ocram_data :data | ||
|
|
||
| .bss (NOLOAD) : | ||
| { | ||
| . = ALIGN(8); | ||
| _sbss = ABSOLUTE(.); | ||
| *(.bss .bss.*) | ||
| . = ALIGN(8); | ||
| _ebss = ABSOLUTE(.); | ||
| } > ocram_noload | ||
|
|
||
| .initstack : | ||
| { | ||
| _s_initstack = ABSOLUTE(.); | ||
| *(.initstack) | ||
| } > ocram_noload | ||
|
|
||
| /* End of data must be page aligned */ | ||
|
|
||
| . = ALIGN(4096); | ||
|
|
||
| g_idle_topstack = .; | ||
| _e_initstack = .; | ||
|
|
||
| /* This makes sure arm64_mmu.c doesn't touch MMU regions, | ||
| * we handle it at imx9_boot.c. | ||
| */ | ||
| _sztext = 0; | ||
| _szrodata = 0; | ||
| _szbss = 0; | ||
| _szdata = 0; | ||
|
|
||
| /* Sections to be discarded */ | ||
| /DISCARD/ : { | ||
| *(.exit.text) | ||
| *(.exit.data) | ||
| *(.exitcall.exit) | ||
| *(.eh_frame) | ||
| } | ||
|
|
||
| /* 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) } | ||
| } | ||
|
|
||
| _heapend = ORIGIN(ocram_noload) + LENGTH(ocram_noload); | ||
| _szbootloader = _heapend - _stext; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,33 @@ | ||
| ############################################################################ | ||
| # tools/imx9/Config.mk | ||
| # | ||
| # 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. | ||
| # | ||
| ############################################################################ | ||
|
|
||
| # These are the macros that will be used in the NuttX make system to compile | ||
| # and assembly source files and to insert the resulting object files into an | ||
| # archive. These replace the default definitions at tools/Config.mk | ||
|
|
||
| # POSTBUILD -- Perform post build operations | ||
|
|
||
| ifeq ($(CONFIG_IMX9_BOOTLOADER),y) | ||
| define POSTBUILD | ||
| $(Q) echo "Removing sections" | ||
| $(Q) $(OBJCOPY) -O binary -R .bss -R .initstack $(BIN) nuttx.bin | ||
| $(Q) ([ $$? -eq 0 ] && echo "Done.") | ||
| endef | ||
| endif |