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esp32: Add config options in Kconfig.board, remove _heap_start symbol

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This commit adds config options for supporting multiple memory
allocation using k_malloc()

Update west.yml with hal_espressif change

Signed-off-by: Shubham Kulkarni <shubham.kulkarni@espressif.com>
This commit is contained in:
Shubham Kulkarni 2021-04-20 11:44:09 +05:30 • committed by Anas Nashif
commit a24707a4bd
2 changed files with 29 additions and 2 deletions
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28
soc/xtensa/esp32/Kconfig.soc
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@ -22,12 +22,40 @@ config ESP32_BT_RESERVE_DRAM
default 0xdb5c if BT
default 0
config ESP_HEAP_MEM_POOL_REGION_1_SIZE
int "Internal DRAM region 1 mempool size"
default 49152
help
ESP32 has two banks of size 192K and 128K which can be used
as DRAM, system heap allocates area from region 0.
This configuration can be used to add memory from region 1
to heap and can be allocated using k_malloc.
config ESP_SPIRAM
bool "Support for external, SPI-connected RAM"
help
This enables support for an external SPI RAM chip, connected in
parallel with the main SPI flash chip.
config ESP_HEAP_MIN_EXTRAM_THRESHOLD
int "Minimum threshold for external RAM allocation"
default 8192
range 1024 131072
depends on ESP_SPIRAM
help
Threshold to decide if memory will be allocated from DRAM
or SPIRAM. If value of allocation size is less than this value,
memory will be allocated from internal RAM.
config ESP_HEAP_SEARCH_ALL_REGIONS
bool "Search for all available heap regions"
depends on ESP_SPIRAM
default y
help
This configuration enables searching all available heap
regions. If the region of desired capability is exhausted,
memory will be allocated from other available region.
menu "SPI RAM config"
depends on ESP_SPIRAM

1
soc/xtensa/esp32/linker.ld
View file

@ -468,7 +468,6 @@ __shell_root_cmds_end = __esp_shell_root_cmds_end;
*(.noinit)
*(".noinit.*")
. = ALIGN (8);
_heap_start = ABSOLUTE(.);
} GROUP_LINK_IN(RAMABLE_REGION_1)
#ifdef CONFIG_GEN_ISR_TABLES