Rockbox open source high quality audio player as a Music Player Daemon
mpris
rockbox
mpd
libadwaita
audio
rust
zig
deno
stm32h7: update linker scripts for ELF boot
Use flash & AXI SRAM for the bootloader, ITCM/DTCM and
SDRAM for Rockbox. Hardly the most optimal use of SRAMs
but it's good enough to get started.
Fixes the Echo R1 app build, which wasn't fitting in
AXI SRAM.
Change-Id: I4f7e5f618d27b553e5ff8dec1d5c4c61ac9d8eb0
authored by
Aidan MacDonald
and committed by
Solomon Peachy
98990df0
174b33cc
+39
-64
+26
-52
firmware/target/arm/stm32/app.lds
+26
-52
firmware/target/arm/stm32/app.lds
···
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#include "cpu.h"
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/*
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* TODO: this is temporary and has not been tested
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*/
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ENTRY(main)
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ENTRY(crt0_start)
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OUTPUT_FORMAT(elf32-littlearm)
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OUTPUT_ARCH(arm)
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STARTUP(target/arm/stm32/crt0-stm32h7.o)
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MEMORY
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{
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SRAM_AXI (rwx) : ORIGIN = STM32_SRAM_AXI_BASE, LENGTH = STM32_SRAM_AXI_SIZE
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DTCM (rwx) : ORIGIN = STM32_DTCM_BASE, LENGTH = STM32_DTCM_SIZE
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-
ITCM (rwx) : ORIGIN = STM32_ITCM_BASE, LENGTH = STM32_ITCM_SIZE
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SDRAM (rwx) : ORIGIN = STM32_SDRAM1_BASE, LENGTH = MEMORYSIZE * 1024 * 1024
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}
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-
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/*
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* to control section alignment (only affects on-disk alignment):
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* -Wl,-z,max-page-size=0x1
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*/
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-
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PHDRS
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{
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sram_rx PT_LOAD ;
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sram_ro PT_LOAD ;
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sram_rw PT_LOAD ;
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itcm PT_LOAD ;
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dtcm PT_LOAD ;
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sdram_rx PT_LOAD ;
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sdram_rw PT_LOAD ;
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DTCM (rw) : ORIGIN = STM32_DTCM_BASE, LENGTH = STM32_DTCM_SIZE
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ITCM (rx) : ORIGIN = STM32_ITCM_BASE, LENGTH = STM32_ITCM_SIZE
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SDRAM (rwx) : ORIGIN = STM32_SDRAM1_BASE, LENGTH = MEMORYSIZE * 1024 * 1024
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}
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SECTIONS
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{
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.text :
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{
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loadaddress = .; /* only needed to keep ROLO happy */
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-
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*(.init*)
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*(.text*)
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} > SRAM_AXI :sram_rx
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-
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.rodata :
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{
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*(.rodata*)
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} > SRAM_AXI :sram_ro
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-
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.data :
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{
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_databegin = .;
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*(.data*)
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_dataend = .;
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} > SRAM_AXI :sram_rw
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_datacopy = LOADADDR(.data);
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-
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.itext :
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{
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KEEP(*(.vectors.arm))
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KEEP(*(.vectors.platform))
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KEEP(*(.vectors.arm));
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KEEP(*(.vectors.platform));
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*(.icode*);
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} > ITCM :itcm
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} > ITCM
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.stack (NOLOAD) :
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{
···
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stackbegin = .;
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. += 0x2000;
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stackend = .;
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} > DTCM
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*(.stack);
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} > DTCM :dtcm
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.text :
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{
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loadaddress = .; /* only needed to keep ROLO happy */
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+
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*(.init*);
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*(.text*);
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} > SDRAM
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+
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.rodata :
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{
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*(.rodata*);
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} > SDRAM
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+
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.data :
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{
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*(.data*);
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} > SDRAM
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.bss (NOLOAD) :
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{
···
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*(.bss*);
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*(COMMON);
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_bssend = .;
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} > SDRAM :sdram_rw
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} > SDRAM
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audiobuffer = ALIGN(32);
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audiobufend = ORIGIN(SDRAM) + LENGTH(SDRAM) - CODEC_SIZE - PLUGIN_BUFFER_SIZE;
+13
-12
firmware/target/arm/stm32/boot.lds
+13
-12
firmware/target/arm/stm32/boot.lds
···
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MEMORY
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{
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SRAM_AXI (rwx) : ORIGIN = STM32_SRAM_AXI_BASE, LENGTH = STM32_SRAM_AXI_SIZE
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DTCM (rwx) : ORIGIN = STM32_DTCM_BASE, LENGTH = STM32_DTCM_SIZE
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-
FLASH1 (rx) : ORIGIN = STM32_FLASH_BANK1_BASE, LENGTH = STM32_FLASH_BANK1_SIZE
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SRAM_AXI (rw) : ORIGIN = STM32_SRAM_AXI_BASE, LENGTH = STM32_SRAM_AXI_SIZE
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FLASH1 (rx) : ORIGIN = STM32_FLASH_BANK1_BASE, LENGTH = STM32_FLASH_BANK1_SIZE
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}
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SECTIONS
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{
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.text :
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{
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KEEP(*(.vectors.arm))
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KEEP(*(.vectors.platform))
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*(.init*)
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*(.text*)
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*(.rodata*)
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KEEP(*(.vectors.arm));
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KEEP(*(.vectors.platform));
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*(.init*);
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*(.text*);
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} > FLASH1
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+
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.rodata :
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{
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*(.rodata*);
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} > FLASH1
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.data :
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{
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_databegin = .;
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*(.data*)
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*(.data*);
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_dataend = .;
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} > SRAM_AXI AT> FLASH1
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_datacopy = LOADADDR(.data);
···
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stackbegin = .;
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. += 0x2000;
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stackend = .;
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-
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*(.stack);
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} > DTCM
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} > SRAM_AXI
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}
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EXTERN(__vectors_arm);