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Diffstat (limited to 'firmware/av7110/Boot.S')
| -rw-r--r-- | firmware/av7110/Boot.S | 109 |
1 files changed, 0 insertions, 109 deletions
diff --git a/firmware/av7110/Boot.S b/firmware/av7110/Boot.S deleted file mode 100644 index d562fdc..0000000 --- a/firmware/av7110/Boot.S +++ /dev/null @@ -1,109 +0,0 @@ -/* - 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 |
