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esp32: Allow RTC slow memory to be reserved for ULP coprocessor

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Angus Gratton 2016-09-21 11:24:02 +10:00 committed by Wu Jian Gang
parent 2c6ab8579a
commit 103a2a0079
2 changed files with 30 additions and 2 deletions
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24
components/esp32/Kconfig
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@ -110,4 +110,28 @@ config NEWLIB_STDOUT_ADDCR
is usually done by an added CR character. Enabling this will make the
standard output code automatically add a CR character before a LF.
config ULP_COPROC_ENABLED
bool "Enable Ultra Low Power (ULP) Coprocessor"
default "n"
help
Set to 'y' if you plan to load a firmware for the coprocessor.
If this option is enabled, further coprocessor configuration will appear in the Components menu.
config ULP_COPROC_RESERVE_MEM
int "RTC slow memory reserved for coprocessor"
default 512
range 32 8192
depends on ULP_COPROC_ENABLED
help
Bytes of memory to reserve for ULP coprocessor firmware & data.
Data is reserved at the beginning of RTC slow memory.
# Set CONFIG_ULP_COPROC_RESERVE_MEM to 0 if ULP is disabled
config ULP_COPROC_RESERVE_MEM
int
default 0
depends on !ULP_COPROC_ENABLED
endmenu

8
components/esp32/ld/esp32.ld
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@ -43,8 +43,12 @@ MEMORY
*/
rtc_iram_seg(RWX) : org = 0x400C0000, len = 0x2000
/* RTC slow memory (data accessible). Persists over deep sleep. */
rtc_slow_seg(RW) : org = 0x50000000, len = 0x2000
/* RTC slow memory (data accessible). Persists over deep sleep.
Start of RTC slow memory is reserved for ULP co-processor code + data, if enabled.
*/
rtc_slow_seg(RW) : org = 0x50000000 + CONFIG_ULP_COPROC_RESERVE_MEM,
len = 0x2000 - CONFIG_ULP_COPROC_RESERVE_MEM
}
/* Heap ends at top of dram0_0_seg */