.syntax unified
    .cpu cortex-a7
    .thumb
    @ Minimal PBL stub (position-independent): BLX to SBL1 entry (seg1),
    @ then canonical regs + jump to sbl_main. Mirrors PBL call-then-jump.
    .text
    .global pbl_stub
pbl_stub:
    push {r4-r7, lr}
    movw r12, #0x6b81
    movt r12, #0x800
    blx r12                   @ SBL1 entry (odd: stay Thumb)
    movw r0, #0x0000
    movt r0, #0x0022          @ r0 = pbl_shared 0x00220000
    mov r5, r0
    movw sl, #0x0000
    movt sl, #0x0806          @ sl = table base 0x08060000
    movw fp, #0x1000
    movt fp, #0x0806          @ fp = 0x08061000
    movw lr, #0xf63f
    movt lr, #0x0802          @ lr = sbl_main odd (noreturn marker)
    bx lr