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b85011c15f
esp-idf/components/esp_hw_support/port/esp32
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Devan Lai b85011c15f esp32: Add support for noinit variables in SPIRAM 
Add Kconfig option SPIRAM_ALLOW_NOINIT_EXTERNAL_MEMORY
When enabled, a new linker script rule (from esp32.extram.noinit.ld)
places any variables in the .ext_ram.noinit section in SPIRAM.

This section is exempted from the startup SPIRAM memory test and is
not zero-initialized or added to the malloc pool, making it usable
for noinit variables that persist across reset.

The EXT_RAM_NOINIT_ATTR macro places variables in this section.
2021-07-29 10:28:38 +08:00
..
private_include Whitespace: Automated whitespace fixes (large commit) 2020-11-11 07:36:35 +00:00
cache_sram_mmu.c esp32: move spiram, himem 2021-07-16 20:14:26 +08:00
chip_info.c esp_system: split esp_system.h header 2021-03-31 19:13:03 +08:00
CMakeLists.txt esp32: move spiram, himem 2021-07-16 20:14:26 +08:00
dport_access.c esp32: move dport_access 2021-07-16 20:14:26 +08:00
esp_himem.c esp32: move spiram, himem 2021-07-16 20:14:26 +08:00
Kconfig.mac esp32: move mac target specific configs 2021-03-31 19:17:33 +08:00
regi2c_ctrl.h regi2c: add a spinlock for accessing (reg)I2C devices 2021-05-13 11:55:41 +08:00
rtc_clk_common.h Whitespace: Automated whitespace fixes (large commit) 2020-11-11 07:36:35 +00:00
rtc_clk_init.c esp32: App can boot on FPGA image 2021-07-16 10:50:06 +10:00
rtc_clk.c esp32: App can boot on FPGA image 2021-07-16 10:50:06 +10:00
rtc_init.c ulp: clear rtc int at initialization 2021-03-31 17:15:55 +08:00
rtc_pm.c soc: move implementations to esp_hw_support 2020-10-28 22:38:50 +08:00
rtc_sleep.c deep sleep: clear wakeup and reject int raw signal before entry sleep 2021-06-29 11:59:54 +08:00
rtc_time.c rtc: add function to en/disable the rtc clock 2020-12-23 09:53:24 +11:00
rtc_wdt.c soc: move implementations to esp_hw_support 2020-10-28 22:38:50 +08:00
spiram_psram.c esp32: move spiram, himem 2021-07-16 20:14:26 +08:00
spiram_psram.h esp32: move spiram, himem 2021-07-16 20:14:26 +08:00
spiram.c esp32: Add support for noinit variables in SPIRAM 2021-07-29 10:28:38 +08:00