| /* |
| * (C) Copyright 2016 ZXIC Inc. |
| * |
| */ |
| |
| #include <config.h> |
| #include <board.h> |
| #include <load_mode.h> |
| |
| .globl stack_setup |
| |
| stack: |
| #if (CONFIG_DL_DISABLE) |
| .word 0x045A0000 /* DL port: 0x5A->Disable. */ |
| #else |
| .word 0x04000000 /* DL port: 0x00->Enable. */ |
| #endif |
| .word 0x3537585A /* = string "57XZ" */ |
| .word 0x31563132 /* = string "1V12" */ |
| .word 0x00001E70 /* zdata size = 8K - HdrSize = 8192 - 400 = 7792 Bytes = 0x1E70*/ |
| |
| /* NOT used now, Just reverse memory for RSA/HASH in near future. */ |
| .word 0x00000000 /*puk_rsa_d*/ |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| |
| .word 0x00000000 /*puk_rsa_n*/ |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| |
| .word 0x00000000 /*hash_y*/ |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 |
| .word 0x00000000 /* VID+PID */ |
| #if defined(CFG_ZLOAD) |
| .word 0x00102800 |
| .word _start - 0x100000 + 0x8A001 /* TBD: MACRO instead of number. */ |
| #else |
| .word 0x0008A000 |
| .word _start + 0x1 |
| #endif |
| .word loop + 1 |
| .word loop + 1 |
| |
| .globl _bss_start |
| _bss_start: |
| .word __bss_start |
| nop |
| nop |
| |
| .globl _bss_end |
| _bss_end: |
| .word __bss_end |
| |
| .globl _para_start |
| _para_start: |
| .word __para_start |
| |
| .globl _para_end |
| _para_end: |
| .word __para_end |
| |
| .globl _start |
| _start: |
| |
| #if defined(CFG_ZLOAD) |
| /* check stage1 state */ |
| ldr r3,=CFG_START_STAGE1_ADDR |
| ldr r4,=CFG_START_STAGE1_STATE |
| ldr r5, [r3] |
| cmp r4, r5 |
| beq set_stack |
| |
| ldr r0, =0x8a000 |
| msr MSP, r0 |
| |
| bl copy_to_iram1 |
| ldr r3,=0x1001B1 /* 0x1b1 = 0x194(header len) + 0x1c(first Ins. offset) + 0x1(16bit thumb instruction) */ |
| mov pc,r3 |
| set_stack: |
| /* Set up the stack */ |
| ldr r2, =0x100000 |
| ldr r3,=0x194 /*header len=0x194*/ |
| add r2,r3 |
| ldr r0, [r2] |
| msr MSP, r0 |
| |
| #else |
| |
| /* Set up the stack */ |
| ldr r2, =stack |
| ldr r3,=0x194 /*header len=0x194*/ |
| add r2,r3 |
| ldr r0, [r2] |
| msr MSP, r0 |
| |
| #endif /* CFG_ZLOAD */ |
| |
| /* clear the bss */ |
| clear_bss: |
| ldr r3, =_bss_start |
| ldr r0, [r3] /* find start of bss segment */ |
| ldr r3, =_bss_end |
| ldr r1, [r3] /* stop here */ |
| cmp r0, r1 |
| beq clbss_over |
| mov r2, #0x0 /* clear value */ |
| clbss_l: |
| str r2, [r0] /* clear BSS location */ |
| add r0, r0, #4 /* increment clear index pointer */ |
| cmp r0, r1 /* are we at the end yet */ |
| bne clbss_l /* keep clearing till at end */ |
| clbss_over: |
| |
| /* remove the para section */ |
| ldr r3, =_para_start |
| ldr r4, [r3] |
| ldr r3, =_para_end |
| ldr r1, [r3] |
| sub r1, r1, r4 |
| ldr r3, =_bss_end |
| ldr r0, [r3] |
| add r1, r1, r0 |
| cmp r0, r1 |
| beq remove_over |
| re_move: |
| ldr r2, [r0] |
| str r2, [r4] |
| add r4, r4, #4 |
| add r0, r0, #4 /* increment clear index pointer */ |
| cmp r0, r1 /* are we at the end yet */ |
| bne re_move |
| remove_over: |
| |
| b start_armboot |
| |
| loop: |
| b loop |
| |