| Server IP : 79.136.114.73 / Your IP : 216.73.216.191 Web Server : Apache/2.4.7 (Ubuntu) PHP/5.5.9-1ubuntu4.29 OpenSSL/1.0.1f System : Linux b8009 3.13.0-170-generic #220-Ubuntu SMP Thu May 9 12:40:49 UTC 2019 x86_64 User : www-data ( 33) PHP Version : 5.5.9-1ubuntu4.29 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority, MySQL : ON | cURL : ON | WGET : ON | Perl : ON | Python : ON | Sudo : ON | Pkexec : ON Directory : /lib/firmware/av7110/ |
Upload File : |
/*
Boot.S: boot loader for Siemens DVB-S card
Copyright (C) 2001 Convergence integrated media GmbH
Written by Ralph Metzler
<rjkm@convergence.de>
Copyright (C) 2006 Matthieu CASTET <castet.mattheiu@free.fr>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/*
check AV711x_3_1.pdf for some hardware infos
build it with :
$ cc -mbig-endian -c Boot.S
$ ld -Ttext 0x2c000000 -EB -o Boot Boot.o
$ objcopy -Obinary Boot
*/
.text
.align
.globl _start
_start:
b reset // reset vector
movs pc, r14 // undefined
subs pc, r14, #4 // SWI
subs pc, r14, #4 // prefetch abort
subs pc, r14, #8 // data abort
subs pc, r14, #4 // reserved
subs pc, r14, #4 // IRQ
subs pc, r14, #4 // FIQ
.word tbl // table needed by firmware ROM
tbl: .word (endtbl - tbl)
.word 0
.word conf
endtbl: .word 0
conf: .word 0xa5a55a5a
.word 0x001f1555
.word 0x00000009
reset: ldr r13, buffer
ldr r4, flag
mov r0, #0
str r0, [r4]
str r0, [r4, #4]
ldr r1, wait_address
ldr r2, flag_address
ldr r3, sram
copycode: // copy the code HW Sram
ldmia r1!, {r5-r12}
stmia r3!, {r5-r12}
cmp r1, r2
ble copycode
ldr pc, sram // jump to the copied code
wait: ldrh r1, [r4] // wait for flag!=0
cmp r1, #0
beq wait
mov r1, r13 // buffer address
ldr r3, [r4,#4] // destaddr
ldrh r2, [r4,#2] // get segment length
add r2, r2, #63 // round length to next 64 bytes
movs r2, r2, lsr #6 // and divide by 64
moveq r0, #2 // if 0, set flag to 2, else signal
strh r0, [r4] // that buffer is accepted by setting to 0
beq wait
copyloop:
ldmia r1!, {r5-r12}
stmia r3!, {r5-r12}
ldmia r1!, {r5-r12}
stmia r3!, {r5-r12}
subs r2, r2, #1
bne copyloop
eor r13, r13, #0x1400 // switch to other buffer
b wait
// flag is stored at 0x2c0003f8, length at 0x2c0003fa,
// destaddr at 0x2c0003fc
flag: .word 0x2c0003f8
// buffer 1 is at 0x2c000400, buffer 2 at 0x2c001000
buffer: .word 0x2c000400
sram: .word 0x9e000800
wait_address: .word wait
flag_address: .word flag