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Bootrom: Enable serial number from flash

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* Add `.ramfunc` section to bootrom loader script
* exclude spiffs functionality from flashmem.h/flashmem.c
   (allows bootrom to use flashmem)
* hide unused tick.h / flashmem.h functions from bootrom
   (not technically necessary; see comments)
* bootrom: add source files, include path, and defines when
  `PLATFORM_DEFS` defines `WITH_FLASH`
* Define `AS_BOOTROM` to indicate code is building for bootrom
This commit is contained in:
Henry Gabryjelski 2023-02-17 16:59:00 -08:00
commit 44676bde72
9 changed files with 373 additions and 272 deletions
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2
armsrc/appmain.c
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@ -2684,7 +2684,7 @@ void __attribute__((noreturn)) AppMain(void) {
if (FlashInit()) {
uint64_t flash_uniqueID = 0;
if (!Flash_CheckBusy(BUSY_TIMEOUT)) { // OK because firmware was built for devices with flash
Flash_UniqueID((uint8_t*)&(flash_uniqueID));
Flash_UniqueID((uint8_t*)(&flash_uniqueID));
}
FlashStop();
usb_update_serial(flash_uniqueID);