blackfin architecture

This adds support for the Analog Devices Blackfin processor architecture, and
currently supports the BF533, BF532, BF531, BF537, BF536, BF534, and BF561
(Dual Core) devices, with a variety of development platforms including those
avaliable from Analog Devices (BF533-EZKit, BF533-STAMP, BF537-STAMP,
BF561-EZKIT), and Bluetechnix!  Tinyboards.

The Blackfin architecture was jointly developed by Intel and Analog Devices
Inc.  (ADI) as the Micro Signal Architecture (MSA) core and introduced it in
December of 2000.  Since then ADI has put this core into its Blackfin
processor family of devices.  The Blackfin core has the advantages of a clean,
orthogonal,RISC-like microprocessor instruction set.  It combines a dual-MAC
(Multiply/Accumulate), state-of-the-art signal processing engine and
single-instruction, multiple-data (SIMD) multimedia capabilities into a single
instruction-set architecture.

The Blackfin architecture, including the instruction set, is described by the
ADSP-BF53x/BF56x Blackfin Processor Programming Reference
http://blackfin.uclinux.org/gf/download/frsrelease/29/2549/Blackfin_PRM.pdf

The Blackfin processor is already supported by major releases of gcc, and
there are binary and source rpms/tarballs for many architectures at:
http://blackfin.uclinux.org/gf/project/toolchain/frs There is complete
documentation, including "getting started" guides available at:
http://docs.blackfin.uclinux.org/ which provides links to the sources and
patches you will need in order to set up a cross-compiling environment for
bfin-linux-uclibc

This patch, as well as the other patches (toolchain, distribution,
uClibc) are actively supported by Analog Devices Inc, at:
http://blackfin.uclinux.org/

We have tested this on LTP, and our test plan (including pass/fails) can
be found at:
http://docs.blackfin.uclinux.org/doku.php?id=testing_the_linux_kernel

[m.kozlowski@tuxland.pl: balance parenthesis in blackfin header files]
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Aubrey Li <aubrey.li@analog.com>
Signed-off-by: Jie Zhang <jie.zhang@analog.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 75 insertions, 0 deletions

diff --git a/include/asm-blackfin/mach-bf561/mem_map.h b/include/asm-blackfin/mach-bf561/mem_map.h
new file mode 100644
index 000000000000..ebac9a8d838d
--- /dev/null
+++ b/include/asm-blackfin/mach-bf561/mem_map.h
@@ -0,0 +1,75 @@
+/*
+ * Memory MAP
+ * Common header file for blackfin BF561 of processors.
+ */
+
+#ifndef _MEM_MAP_561_H_
+#define _MEM_MAP_561_H_
+
+#define COREMMR_BASE           0xFFE00000	 /* Core MMRs */
+#define SYSMMR_BASE            0xFFC00000	 /* System MMRs */
+
+/* Async Memory Banks */
+#define ASYNC_BANK3_BASE	0x2C000000	 /* Async Bank 3 */
+#define ASYNC_BANK3_SIZE	0x04000000	/* 64M */
+#define ASYNC_BANK2_BASE	0x28000000	 /* Async Bank 2 */
+#define ASYNC_BANK2_SIZE	0x04000000	/* 64M */
+#define ASYNC_BANK1_BASE	0x24000000	 /* Async Bank 1 */
+#define ASYNC_BANK1_SIZE	0x04000000	/* 64M */
+#define ASYNC_BANK0_BASE	0x20000000	 /* Async Bank 0 */
+#define ASYNC_BANK0_SIZE	0x04000000	/* 64M */
+
+/* Level 1 Memory */
+
+#ifdef CONFIG_BLKFIN_CACHE
+#define BLKFIN_ICACHESIZE	(16*1024)
+#else
+#define BLKFIN_ICACHESIZE	(0*1024)
+#endif
+
+/* Memory Map for ADSP-BF561 processors */
+
+#ifdef CONFIG_BF561
+#define L1_CODE_START     0xFFA00000
+#define L1_DATA_A_START     0xFF800000
+#define L1_DATA_B_START     0xFF900000
+
+#define L1_CODE_LENGTH      0x4000
+
+#ifdef CONFIG_BLKFIN_DCACHE
+
+#ifdef CONFIG_BLKFIN_DCACHE_BANKA
+#define DMEM_CNTR (ACACHE_BSRAM | ENDCPLB | PORT_PREF0)
+#define L1_DATA_A_LENGTH      (0x8000 - 0x4000)
+#define L1_DATA_B_LENGTH      0x8000
+#define BLKFIN_DCACHESIZE	(16*1024)
+#define BLKFIN_DSUPBANKS	1
+#else
+#define DMEM_CNTR (ACACHE_BCACHE | ENDCPLB | PORT_PREF0)
+#define L1_DATA_A_LENGTH      (0x8000 - 0x4000)
+#define L1_DATA_B_LENGTH      (0x8000 - 0x4000)
+#define BLKFIN_DCACHESIZE	(32*1024)
+#define BLKFIN_DSUPBANKS	2
+#endif
+
+#else
+#define DMEM_CNTR (ASRAM_BSRAM | ENDCPLB | PORT_PREF0)
+#define L1_DATA_A_LENGTH      0x8000
+#define L1_DATA_B_LENGTH      0x8000
+#define BLKFIN_DCACHESIZE	(0*1024)
+#define BLKFIN_DSUPBANKS	0
+#endif /*CONFIG_BLKFIN_DCACHE*/
+#endif
+
+/* Level 2 Memory */
+#define L2_START		0xFEB00000
+#define L2_LENGTH		0x20000
+
+/* Scratch Pad Memory */
+
+#if defined(CONFIG_BF561)
+#define L1_SCRATCH_START	0xFFB00000
+#define L1_SCRATCH_LENGTH	0x1000
+#endif
+
+#endif				/* _MEM_MAP_533_H_ */