95 lines
4.2 KiB
Plaintext
95 lines
4.2 KiB
Plaintext
/*
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* SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* ESP32-C6 Linker Script Memory Layout
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* This file describes the memory layout (memory blocks) by virtual memory addresses.
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* This linker script is passed through the C preprocessor to include configuration options.
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* Please use preprocessor features sparingly!
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* Restrict to simple macros with numeric values, and/or #if/#endif blocks.
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*/
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/*
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* Automatically generated file. DO NOT EDIT.
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* Espressif IoT Development Framework (ESP-IDF) 5.4.0 Configuration Header
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*/
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/* List of deprecated options */
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/*
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* SPDX-FileCopyrightText: 2021-2024 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/* CPU instruction prefetch padding size for flash mmap scenario */
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/*
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* PMP region granularity size
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* Software may determine the PMP granularity by writing zero to pmp0cfg, then writing all ones
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* to pmpaddr0, then reading back pmpaddr0. If G is the index of the least-significant bit set,
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* the PMP granularity is 2^G+2 bytes.
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*/
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/* CPU instruction prefetch padding size for memory protection scenario */
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/* Memory alignment size for PMS */
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/* rtc timer data (s_rtc_timer_retain_mem, see esp_clk.c files). For rtc_timer_data_in_rtc_mem section. */
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/*
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* IDRAM0_2_SEG_SIZE_DEFAULT is used when page size is 64KB
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*/
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MEMORY
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{
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/**
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* All these values assume the flash cache is on, and have the blocks this uses subtracted from the length
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* of the various regions. The 'data access port' dram/drom regions map to the same iram/irom regions but
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* are connected to the data port of the CPU and eg allow byte-wise access.
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*/
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/* Flash mapped instruction data */
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irom_seg (RX) : org = 0x42000020, len = (0x10000 << 8) - 0x20
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/**
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* (0x20 offset above is a convenience for the app binary image generation.
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* Flash cache has 64KB pages. The .bin file which is flashed to the chip
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* has a 0x18 byte file header, and each segment has a 0x08 byte segment
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* header. Setting this offset makes it simple to meet the flash cache MMU's
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* constraint that (paddr % 64KB == vaddr % 64KB).)
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*/
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/**
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* Shared data RAM, excluding memory reserved for ROM bss/data/stack.
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* Enabling Bluetooth & Trace Memory features in menuconfig will decrease the amount of RAM available.
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*/
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sram_seg (RWX) : org = 0x40800000, len = 0x4086E610 - 0x40800000
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/* Flash mapped constant data */
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drom_seg (R) : org = 0x42000020, len = (0x10000 << 8) - 0x20
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/* (See irom_seg for meaning of 0x20 offset in the above.) */
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/**
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* lp ram memory (RWX). Persists over deep sleep. // TODO: IDF-5667
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*/
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lp_ram_seg(RW) : org = 0x50000000, len = 0x4000 - (0 + (24))
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/* We reduced the size of lp_ram_seg by RESERVE_RTC_MEM value.
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It reserves the amount of LP memory that we use for this memory segment.
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This segment is intended for keeping:
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- (lower addr) rtc timer data (s_rtc_timer_retain_mem, see esp_clk.c files).
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- (higher addr) bootloader rtc data (s_bootloader_retain_mem, when a Kconfig option is on).
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The aim of this is to keep data that will not be moved around and have a fixed address.
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*/
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lp_reserved_seg(RW) : org = 0x50000000 + 0x4000 - (0 + (24)), len = (0 + (24))
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}
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/* Heap ends at top of sram_seg */
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_heap_end = 0x40000000;
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_data_seg_org = ORIGIN(rtc_data_seg);
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/**
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* The lines below define location alias for .rtc.data section
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* C6 has no distinguished LP(RTC) fast and slow memory sections, instead, there is a unified LP_RAM section
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* Thus, the following region segments are not configurable like on other targets
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*/
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REGION_ALIAS("rtc_iram_seg", lp_ram_seg );
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REGION_ALIAS("rtc_data_seg", rtc_iram_seg );
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REGION_ALIAS("rtc_slow_seg", rtc_iram_seg );
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REGION_ALIAS("rtc_data_location", rtc_iram_seg );
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REGION_ALIAS("rtc_reserved_seg", lp_reserved_seg );
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REGION_ALIAS("default_code_seg", irom_seg);
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REGION_ALIAS("default_rodata_seg", drom_seg);
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/**
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* If rodata default segment is placed in `drom_seg`, then flash's first rodata section must
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* also be first in the segment.
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*/
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ASSERT(_flash_rodata_dummy_start == ORIGIN(default_rodata_seg),
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".flash_rodata_dummy section must be placed at the beginning of the rodata segment.")
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