michaelh/zephyr
1
0
Fork 0
Code Releases Activity

esp32: SPIRAM Support

Browse source 
Adds SPIRAM support for ESP32

Configures k_heap for SPIRAM memory range

Signed-off-by: Shubham Kulkarni <shubham.kulkarni@espressif.com>
This commit is contained in:
Shubham Kulkarni 2020-12-03 18:44:56 +05:30 • committed by Anas Nashif
commit 67d2368398
3 changed files with 182 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

12
soc/xtensa/esp32/linker.ld
View file

@ -45,6 +45,9 @@ MEMORY
drom0_0_seg(R): org = 0x3F400020, len = 0x400000-0x20
rtc_iram_seg(RWX): org = 0x400C0000, len = 0x2000
rtc_slow_seg(RW): org = 0x50000000, len = 0x1000
#if defined(CONFIG_ESP_SPIRAM)
ext_ram_seg(RW): org = 0x3F800000, len = CONFIG_ESP_SPIRAM_SIZE
#endif
#ifdef CONFIG_GEN_ISR_TABLES
IDT_LIST(RW): org = 0x3ebfe010, len = 0x2000
#endif
@ -250,6 +253,15 @@ _net_buf_pool_list = _esp_net_buf_pool_list;
. = ALIGN(4);
} GROUP_LINK_IN(RAMABLE_REGION)
#if defined(CONFIG_ESP_SPIRAM)
.ext_ram.bss (NOLOAD):
{
_ext_ram_data_start = ABSOLUTE(.);
*(.ext_ram.bss*)
_ext_ram_data_end = ABSOLUTE(.) + CONFIG_ESP_SPIRAM_SIZE;
} > ext_ram_seg
#endif
SECTION_PROLOGUE(_RODATA_SECTION_NAME,,ALIGN(20))
{
_rodata_start = ABSOLUTE(.);