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Support building an OTA-compatible flash image

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Image is suitable for SDK v1.2 bootloader or rBoot.
This commit is contained in:
Angus Gratton 2015-07-21 15:02:09 +10:00
parent 5bbbc1f144
commit 87dc2317f5
2 changed files with 108 additions and 25 deletions
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43
ld/eagle.app.v6.ld
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@ -28,13 +28,54 @@ _lock_release_recursive = vPortExitCritical;
/* SDK compatibility */
ets_printf = printf;
/* Evaluate FLASH_SIZE to calculate irom size, etc.
*/
#ifndef OTA
#define IROM0_START 0x40240000
/* Non-OTA sizes */
#if FLASH_SIZE == 2 /* 256kB */
#define IROM0_LEN 0x3C000
#elif FLASH_SIZE == 4 /* 512kB */
#define IROM0_LEN 0x7C000
#elif FLASH_SIZE == 8 /* 1MB */
#define IROM0_LEN 0xFC000
#elif FLASH_SIZE == 16 /* 2MB */
#define IROM0_LEN 0x1FC000
#elif FLASH_SIZE == 32 /* 4MB */
#define IROM0_LEN 0x3FC000
#else /*FLASH_SIZE*/
#error "Unknown flash size for linker script. Check the FLASH_SIZE variable in your Makefile."
#endif
#else /* OTA */
/* IROM0 becomes an actual "section" of the bootloader image, so we need to leave
space for the bootloader (0x2000 bytes) and space for the bootloader & section
headers (0x10 bytes)
*/
#define IROM0_START 0x40202010
/* OTA sizes */
#if FLASH_SIZE < 16
#error "OTA support currently requires 16 or 32 megabit flash"
#elif FLASH_SIZE == 16 || FLASH_SIZE == 32
/* 1MB irom0 section regardless, minus the space for the bootloader */
#define IROM0_LEN (0x100000 - 0x2010)
#else /*FLASH_SIZE*/
#error "Unknown flash size for linker script. Check the FLASH_SIZE variable in your Makefile."
#endif
#endif
/* Linker Script for ld -N */
MEMORY
{
dport0_0_seg : org = 0x3FF00000, len = 0x10
dram0_0_seg : org = 0x3FFE8000, len = 0x14000
iram1_0_seg : org = 0x40100000, len = 0x08000
irom0_0_seg : org = 0x40240000, len = 0x7C000
irom0_0_seg : org = IROM0_START, len = IROM0_LEN
}
PHDRS