1 .section .entry 2 3 LDR SP, =MEMBASEADDR 4 BL check_compat 5 6 7 // Turn OFF SD Card power 8 // to support autostart 9 // LDR R3, =0xC0220018 10 // MOV R2, #0x44 11 // STR R2, [R3] 12 13 // looks like idle cycle is required for proper shutdown 14 // MOV R3, #0x8000 15 //1: 16 // SUB R3, R3, #1 17 // CMP R3, #0 18 // BNE 1b 19 20 // ordinary startup... 21 22 MOV SP, #0x1900 23 MOV R11, #0 24 B my_restart