We are using beaglebone black based custom board,
I want to write some test results into RAM location from SPL.
And read that log and send it via tftpput to host pc.
So far i am able to do tftpput from RAM to Host pc.
But on safer side i want to find RAM location which neither SPL nor U-Boot uses,
To find that out i need suggestions regarding SPL and U-Boot's memory map,
Board's info looks as follows
#bdinfo arch_number = 0x00000E05 boot_params = 0x80000100 DRAM bank = 0x00000000 -> start = 0x80000000 ---> RAM Start address -> size = 0x10000000 ---> 256 MB eth0name = cpsw ethaddr = 1c:ba:8c:9d:5f:f0 current eth = cpsw ip_addr = 192.168.1.106 baudrate = 115200 bps TLB addr = 0x8FFF0000 ---> AFA i understand its for Linux right ? relocaddr = 0x8FFB3000 ---> Does u-boot use this ?? reloc off = 0x0F7B3000 ---> Does u-boot use this ?? irq_sp = 0x8FE92F38 ---> Does u-boot use this ?? sp start = 0x8FE92F28 ---> Does u-boot use this ??
System.map file show max address as follows,
8083c7ac B __bss_end 8083c7ac B __bss_limit
u-boot.map file shows max address as follows,
.__bss_end 0x8083c7ac 0x0 arch/arm/lib/libarm.o
0x8083c7ac __bss_end
u-boot-spl.map file shows max address as follows
0x80a0299c . = ALIGN (0x4) 0x80a0299c __bss_end = .
Can someone explain bdinfo please?
So should i consider using 0x81000000 as safe address and start using it for my logging ?
