dsp56k: use request_firmware
Signed-off-by: Jaswinder Singh <jaswinder@infradead.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
diff --git a/firmware/Makefile b/firmware/Makefile
index a162b29..782c499 100644
--- a/firmware/Makefile
+++ b/firmware/Makefile
@@ -20,6 +20,7 @@
# accurate. In the latter case it doesn't matter -- it'll use $(fw-shipped-all).
# But be aware that the config file might not be included at all.
+fw-shipped-$(CONFIG_ATARI_DSP56K) += dsp56k/bootstrap.bin
fw-shipped-$(CONFIG_ATM_AMBASSADOR) += atmsar11.fw
fw-shipped-$(CONFIG_COMPUTONE) += intelliport2.bin
fw-shipped-$(CONFIG_DVB_TTUSB_BUDGET) += ttusb-budget/dspbootcode.bin
diff --git a/firmware/WHENCE b/firmware/WHENCE
index 79e62e2..5c1dc15 100644
--- a/firmware/WHENCE
+++ b/firmware/WHENCE
@@ -309,3 +309,15 @@
Found in hex form in kernel source.
--------------------------------------------------------------------------
+
+Driver: ATARI_DSP56K - Atari DSP56k support
+
+File: dsp56k/bootstrap.bin
+Source: dsp56k/bootstrap.asm
+
+Licence: GPLv2 or later
+
+DSP56001 assembler, possibly buildable with a56 from
+http://www.zdomain.com/a56.html
+
+--------------------------------------------------------------------------
diff --git a/firmware/dsp56k/bootstrap.asm b/firmware/dsp56k/bootstrap.asm
new file mode 100644
index 0000000..10d8919
--- /dev/null
+++ b/firmware/dsp56k/bootstrap.asm
@@ -0,0 +1,98 @@
+; Author: Frederik Noring <noring@nocrew.org>
+;
+; This file is subject to the terms and conditions of the GNU General Public
+; License. See the file COPYING in the main directory of this archive
+; for more details.
+
+; DSP56k loader
+
+; Host Interface
+M_BCR EQU $FFFE ; Port A Bus Control Register
+M_PBC EQU $FFE0 ; Port B Control Register
+M_PBDDR EQU $FFE2 ; Port B Data Direction Register
+M_PBD EQU $FFE4 ; Port B Data Register
+M_PCC EQU $FFE1 ; Port C Control Register
+M_PCDDR EQU $FFE3 ; Port C Data Direction Register
+M_PCD EQU $FFE5 ; Port C Data Register
+
+M_HCR EQU $FFE8 ; Host Control Register
+M_HSR EQU $FFE9 ; Host Status Register
+M_HRX EQU $FFEB ; Host Receive Data Register
+M_HTX EQU $FFEB ; Host Transmit Data Register
+
+; SSI, Synchronous Serial Interface
+M_RX EQU $FFEF ; Serial Receive Data Register
+M_TX EQU $FFEF ; Serial Transmit Data Register
+M_CRA EQU $FFEC ; SSI Control Register A
+M_CRB EQU $FFED ; SSI Control Register B
+M_SR EQU $FFEE ; SSI Status Register
+M_TSR EQU $FFEE ; SSI Time Slot Register
+
+; Exception Processing
+M_IPR EQU $FFFF ; Interrupt Priority Register
+
+ org P:$0
+start jmp <$40
+
+ org P:$40
+; ; Zero 16384 DSP X and Y words
+; clr A #0,r0
+; clr B #0,r4
+; do #64,<_block1
+; rep #256
+; move A,X:(r0)+ B,Y:(r4)+
+;_block1 ; Zero (32768-512) Program words
+; clr A #512,r0
+; do #126,<_block2
+; rep #256
+; move A,P:(r0)+
+;_block2
+
+ ; Copy DSP program control
+ move #real,r0
+ move #upload,r1
+ do #upload_end-upload,<_copy
+ move P:(r0)+,x0
+ move x0,P:(r1)+
+_copy movep #>4,X:<<M_HCR
+ movep #>$c00,X:<<M_IPR
+ and #<$fe,mr
+ jmp upload
+
+real
+ org P:$7ea9
+upload
+ movep #>1,X:<<M_PBC
+ movep #>0,X:<<M_BCR
+
+next jclr #0,X:<<M_HSR,*
+ movep X:<<M_HRX,A
+ move #>3,x0
+ cmp x0,A #>1,x0
+ jeq <$0
+_get_address
+ jclr #0,X:<<M_HSR,_get_address
+ movep X:<<M_HRX,r0
+_get_length
+ jclr #0,X:<<M_HSR,_get_length
+ movep X:<<M_HRX,y0
+ cmp x0,A #>2,x0
+ jeq load_X
+ cmp x0,A
+ jeq load_Y
+
+load_P do y0,_load
+ jclr #0,X:<<M_HSR,*
+ movep X:<<M_HRX,P:(r0)+
+_load jmp next
+load_X do y0,_load
+ jclr #0,X:<<M_HSR,*
+ movep X:<<M_HRX,X:(r0)+
+_load jmp next
+load_Y do y0,_load
+ jclr #0,X:<<M_HSR,*
+ movep X:<<M_HRX,Y:(r0)+
+_load jmp next
+
+upload_end
+ end
diff --git a/firmware/dsp56k/bootstrap.bin.ihex b/firmware/dsp56k/bootstrap.bin.ihex
new file mode 100644
index 0000000..233f21f
--- /dev/null
+++ b/firmware/dsp56k/bootstrap.bin.ihex
@@ -0,0 +1,26 @@
+:100000000C004000000000000000000000000000A4
+:1000100000000000000000000000000000000000E0
+:1000200000000000000000000000000000000000D0
+:1000300000000000000000000000000000000000C0
+:1000400000000000000000000000000000000000B0
+:1000500000000000000000000000000000000000A0
+:100060000000000000000000000000000000000090
+:100070000000000000000000000000000000000080
+:100080000000000000000000000000000000000070
+:100090000000000000000000000000000000000060
+:1000A0000000000000000000000000000000000050
+:1000B0000000000000000000000000000000000040
+:1000C00060F40000004F61F400007EA9062E80005D
+:1000D000004707D88407598408F4A800000408F4EE
+:1000E000BF000C0000FEB80AF080007EA908F4A052
+:1000F00000000108F4BE0000000AA980007EAD08DF
+:100100004E2B44F40000000344F4450000010EA00F
+:10011000000AA980007EB508502B0AA980007EB88D
+:1001200008462B44F4450000020AF0AA007EC920CC
+:1001300000450AF0AA007ED006C600007EC60AA9C5
+:1001400080007EC408586B0AF080007EAD06C600B1
+:10015000007ECD0AA980007ECB0858AB0AF0800053
+:100160007EAD06C600007ED40AA980007ED2085863
+:07017000EB0AF080007EADF8
+:00000001FF
+/* DSP56001 bootstrap code */