esp-hal/esp32c3-hal/ld/bl-esp32c3-memory.x
Scott Mabin 9a5a546228
Unify linker scripts (#443)
* esp32 & esp32s2 sharing scripts

* add wokwi files

* Add fixup section for esp32s2, fix ordering of sectino includes

* Remove debug asm file

* Use shared linker scripts for s3 with fixups

* Add external.x sections back

* Move ld scripts into esp-hal-common

* esp32c3 unified linker scripts

- rework original c3 script to use the xtensa named sections
  (e.g, _SECTIONNAME_start)
- Add fixups in esp32c3 specific linker
- Remove useless text section start and end (not required when using any
  form of bootloader)

* Add RTC alias'. Move some shared fixups to a file

* comment and cleanup

* unify c2 linker script

* unify c6 linker script

* remove debug configs

* use new esp-riscv-rt

* fmt

* align db symbol names

* fix s3 db
2023-03-20 08:12:14 -07:00

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MEMORY
{
/*
https://github.com/espressif/esptool/blob/ed64d20b051d05f3f522bacc6a786098b562d4b8/esptool/targets/esp32c3.py#L78-L90
MEMORY_MAP = [[0x00000000, 0x00010000, "PADDING"],
[0x3C000000, 0x3C800000, "DROM"],
[0x3FC80000, 0x3FCE0000, "DRAM"],
[0x3FC88000, 0x3FD00000, "BYTE_ACCESSIBLE"],
[0x3FF00000, 0x3FF20000, "DROM_MASK"],
[0x40000000, 0x40060000, "IROM_MASK"],
[0x42000000, 0x42800000, "IROM"],
[0x4037C000, 0x403E0000, "IRAM"],
[0x50000000, 0x50002000, "RTC_IRAM"],
[0x50000000, 0x50002000, "RTC_DRAM"],
[0x600FE000, 0x60100000, "MEM_INTERNAL2"]]
*/
/* 400K of on soc RAM, 16K reserved for cache */
ICACHE : ORIGIN = 0x4037C000, LENGTH = 0x4000
/* Instruction RAM */
IRAM : ORIGIN = 0x4037C000 + 0x4000, LENGTH = 400K - 0x4000
/* Data RAM */
DRAM : ORIGIN = 0x3FC80000, LENGTH = 0x50000
/* External flash */
/* Instruction ROM */
IROM : ORIGIN = 0x42000000 + 0x20, LENGTH = 0x400000 - 0x20
/* Data ROM */
DROM : ORIGIN = 0x3C000000, LENGTH = 0x400000
/* RTC fast memory (executable). Persists over deep sleep. */
RTC_FAST : ORIGIN = 0x50000000, LENGTH = 0x2000 /*- ESP_BOOTLOADER_RESERVE_RTC*/
}
REGION_ALIAS("ROTEXT", IROM);
REGION_ALIAS("RODATA", DROM);
REGION_ALIAS("RWDATA", DRAM);
REGION_ALIAS("RWTEXT", IRAM);
REGION_ALIAS("RTC_FAST_RWTEXT", RTC_FAST);
REGION_ALIAS("RTC_FAST_RWDATA", RTC_FAST);