diff options
Diffstat (limited to 'firmware/av7110')
| -rw-r--r-- | firmware/av7110/Boot.S | 109 | ||||
| -rw-r--r-- | firmware/av7110/bootcode.bin.ihex | 15 |
2 files changed, 124 insertions, 0 deletions
diff --git a/firmware/av7110/Boot.S b/firmware/av7110/Boot.S new file mode 100644 index 00000000000..d562fdc2908 --- /dev/null +++ b/firmware/av7110/Boot.S @@ -0,0 +1,109 @@ +/* + 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 diff --git a/firmware/av7110/bootcode.bin.ihex b/firmware/av7110/bootcode.bin.ihex new file mode 100644 index 00000000000..26a2993e072 --- /dev/null +++ b/firmware/av7110/bootcode.bin.ihex @@ -0,0 +1,15 @@ +:10000000EA00000EE1B0F00EE25EF004E25EF00401 +:10001000E25EF008E25EF004E25EF004E25EF0040C +:100020002C0000240000000C000000002C00003414 +:1000300000000000A5A55A5A001F15550000000930 +:10004000E59FD07CE59F4074E3A00000E5840000BC +:10005000E5840004E59F1070E59F2070E59F306403 +:10006000E8B11FE0E8A31FE0E1510002DAFFFFFB67 +:10007000E59FF050E1D410B0E35100000AFFFFFC0F +:10008000E1A0100DE5943004E1D420B2E282203FDB +:10009000E1B0232203A00002E1C400B00AFFFFF494 +:1000A000E8B11FE0E8A31FE0E8B11FE0E8A31FE00C +:1000B000E25220011AFFFFF9E22DDB05EAFFFFEC17 +:1000C0002C0003F82C0004009E0008002C00007493 +:0400D0002C0000C040 +:00000001FF |