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Merge branch 'feature/esptool_image_padding' into 'master'

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esptool: Optimise app image size by using RAM-loaded data for padding

See merge request !1017
This commit is contained in:
Angus Gratton
2017-07-19 15:52:22 +08:00
parent fa7d53e700 2d9770fd00
commit 105c4b7386
2 changed files with 14 additions and 4 deletions
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16
components/esp32/ld/esp32.ld
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@@ -25,8 +25,16 @@ MEMORY
/* IRAM for PRO cpu. Not sure if happy with this, this is MMU area... */
iram0_0_seg (RX) : org = 0x40080000, len = 0x20000
/* Even though the segment name is iram, it is actually mapped to flash */
iram0_2_seg (RX) : org = 0x400D0018, len = 0x330000
/* Even though the segment name is iram, it is actually mapped to flash
*/
iram0_2_seg (RX) : org = 0x400D0018, len = 0x330000-0x18
/*
(0x18 offset above is a convenience for the app binary image generation. Flash cache has 64KB pages. The .bin file
which is flashed to the chip has a 0x18 byte file header. Setting this offset makes it simple to meet the flash
cache MMU's constraint that (paddr % 64KB == vaddr % 64KB).)
*/
/* Shared data RAM, excluding memory reserved for ROM bss/data/stack.
@@ -37,7 +45,9 @@ MEMORY
len = 0x50000 - CONFIG_TRACEMEM_RESERVE_DRAM - CONFIG_BT_RESERVE_DRAM
/* Flash mapped constant data */
drom0_0_seg (R) : org = 0x3F400010, len = 0x800000
drom0_0_seg (R) : org = 0x3F400018, len = 0x400000-0x18
/* (See iram0_2_seg for meaning of 0x18 offset in the above.) */
/* RTC fast memory (executable). Persists over deep sleep.
*/

2
components/esptool_py/esptool

Submodule components/esptool_py/esptool updated: ffde3f07b3...325f01637b