Option 1 (SPL only):
0x40200800 - 0x4020BBFF: Area for SPL text, data and rodata
-0x4020BC00 - 0x4020FFFC: Area for the SPL stack.
+0x4020E000 - 0x4020FFFC: Area for the SPL stack.
0x80000000 - 0x8007FFFF: Area for the SPL BSS.
0x80100000: CONFIG_SYS_TEXT_BASE of U-Boot
0x80208000 - 0x80307FFF: malloc() pool available to SPL.
Option 2 (SPL or X-Loader):
0x40200800 - 0x4020BBFF: Area for SPL text, data and rodata
-0x4020BC00 - 0x4020FFFC: Area for the SPL stack.
+0x4020E000 - 0x4020FFFC: Area for the SPL stack.
0x80008000: CONFIG_SYS_TEXT_BASE of U-Boot
0x87000000 - 0x8707FFFF: Area for the SPL BSS.
0x87080000 - 0x870FFFFF: malloc() pool available to SPL.