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, 222 insertions, 0 deletions

diff --git a/arch/blackfin/mach-bf561/Kconfig b/arch/blackfin/mach-bf561/Kconfig
new file mode 100644
index 000000000000..0a17c4cf0059
--- /dev/null
+++ b/arch/blackfin/mach-bf561/Kconfig
@@ -0,0 +1,222 @@
+if BF561
+
+menu "BF561 Specific Configuration"
+
+comment "Core B Support"
+
+menu "Core B Support"
+
+config BF561_COREB
+        bool "Enable Core B support"
+        default y
+
+config BF561_COREB_RESET
+        bool "Enable Core B reset support"
+        default n
+        help
+          This requires code in the application that is loaded
+          into Core B. In order to reset, the application needs
+          to install an interrupt handler for Supplemental
+          Interrupt 0, that sets RETI to 0xff600000 and writes
+          bit 11 of SICB_SYSCR when bit 5 of SICA_SYSCR is 0.
+          This causes Core B to stall when Supplemental Interrupt
+          0 is set, and will reset PC to 0xff600000 when
+          COREB_SRAM_INIT is cleared.
+
+endmenu
+
+comment "Interrupt Priority Assignment"
+
+menu "Priority"
+
+config IRQ_PLL_WAKEUP
+        int "PLL Wakeup Interrupt"
+        default 7
+config IRQ_DMA1_ERROR
+        int "DMA1 Error (generic)"
+        default 7
+config IRQ_DMA2_ERROR
+        int "DMA2 Error (generic)"
+        default 7
+config IRQ_IMDMA_ERROR
+        int "IMDMA Error (generic)"
+        default 7
+config IRQ_PPI0_ERROR
+        int "PPI0 Error Interrupt"
+        default 7
+config IRQ_PPI1_ERROR
+        int "PPI1 Error Interrupt"
+        default 7
+config IRQ_SPORT0_ERROR
+        int "SPORT0 Error Interrupt"
+        default 7
+config IRQ_SPORT1_ERROR
+        int "SPORT1 Error Interrupt"
+        default 7
+config IRQ_SPI_ERROR
+        int "SPI Error Interrupt"
+        default 7
+config IRQ_UART_ERROR
+        int "UART Error Interrupt"
+        default 7
+config IRQ_RESERVED_ERROR
+        int "Reserved Interrupt"
+        default 7
+config IRQ_DMA1_0
+        int "DMA1 0  Interrupt(PPI1)"
+        default 8
+config IRQ_DMA1_1
+        int "DMA1 1  Interrupt(PPI2)"
+        default 8
+config IRQ_DMA1_2
+        int "DMA1 2  Interrupt"
+        default 8
+config IRQ_DMA1_3
+        int "DMA1 3  Interrupt"
+        default 8
+config IRQ_DMA1_4
+        int "DMA1 4  Interrupt"
+        default 8
+config IRQ_DMA1_5
+        int "DMA1 5  Interrupt"
+        default 8
+config IRQ_DMA1_6
+        int "DMA1 6  Interrupt"
+        default 8
+config IRQ_DMA1_7
+        int "DMA1 7  Interrupt"
+        default 8
+config IRQ_DMA1_8
+        int "DMA1 8  Interrupt"
+        default 8
+config IRQ_DMA1_9
+        int "DMA1 9  Interrupt"
+        default 8
+config IRQ_DMA1_10
+        int "DMA1 10 Interrupt"
+        default 8
+config IRQ_DMA1_11
+        int "DMA1 11 Interrupt"
+        default 8
+config IRQ_DMA2_0
+        int "DMA2 0  (SPORT0 RX)"
+        default 9
+config IRQ_DMA2_1
+        int "DMA2 1  (SPORT0 TX)"
+        default 9
+config IRQ_DMA2_2
+        int "DMA2 2  (SPORT1 RX)"
+        default 9
+config IRQ_DMA2_3
+        int "DMA2 3  (SPORT2 TX)"
+        default 9
+config IRQ_DMA2_4
+        int "DMA2 4  (SPI)"
+        default 9
+config IRQ_DMA2_5
+        int "DMA2 5  (UART RX)"
+        default 9
+config IRQ_DMA2_6
+        int "DMA2 6  (UART TX)"
+        default 9
+config IRQ_DMA2_7
+        int "DMA2 7  Interrupt"
+        default 9
+config IRQ_DMA2_8
+        int "DMA2 8  Interrupt"
+        default 9
+config IRQ_DMA2_9
+        int "DMA2 9  Interrupt"
+        default 9
+config IRQ_DMA2_10
+        int "DMA2 10 Interrupt"
+        default 9
+config IRQ_DMA2_11
+        int "DMA2 11 Interrupt"
+        default 9
+config IRQ_TIMER0
+        int "TIMER 0  Interrupt"
+        default 10
+config IRQ_TIMER1
+        int "TIMER 1  Interrupt"
+        default 10
+config IRQ_TIMER2
+        int "TIMER 2  Interrupt"
+        default 10
+config IRQ_TIMER3
+        int "TIMER 3  Interrupt"
+        default 10
+config IRQ_TIMER4
+        int "TIMER 4  Interrupt"
+        default 10
+config IRQ_TIMER5
+        int "TIMER 5  Interrupt"
+        default 10
+config IRQ_TIMER6
+        int "TIMER 6  Interrupt"
+        default 10
+config IRQ_TIMER7
+        int "TIMER 7  Interrupt"
+        default 10
+config IRQ_TIMER8
+        int "TIMER 8  Interrupt"
+        default 10
+config IRQ_TIMER9
+        int "TIMER 9  Interrupt"
+        default 10
+config IRQ_TIMER10
+        int "TIMER 10 Interrupt"
+        default 10
+config IRQ_TIMER11
+        int "TIMER 11 Interrupt"
+        default 10
+config IRQ_PROG0_INTA
+        int "Programmable Flags0 A (8)"
+        default 11
+config IRQ_PROG0_INTB
+        int "Programmable Flags0 B (8)"
+        default 11
+config IRQ_PROG1_INTA
+        int "Programmable Flags1 A (8)"
+        default 11
+config IRQ_PROG1_INTB
+        int "Programmable Flags1 B (8)"
+        default 11
+config IRQ_PROG2_INTA
+        int "Programmable Flags2 A (8)"
+        default 11
+config IRQ_PROG2_INTB
+        int "Programmable Flags2 B (8)"
+        default 11
+config IRQ_DMA1_WRRD0
+        int "MDMA1 0 write/read INT"
+        default 8
+config IRQ_DMA1_WRRD1
+        int "MDMA1 1 write/read INT"
+        default 8
+config IRQ_DMA2_WRRD0
+        int "MDMA2 0 write/read INT"
+        default 9
+config IRQ_DMA2_WRRD1
+        int "MDMA2 1 write/read INT"
+        default 9
+config IRQ_IMDMA_WRRD0
+        int "IMDMA 0 write/read INT"
+        default 12
+config IRQ_IMDMA_WRRD1
+        int "IMDMA 1 write/read INT"
+        default 12
+config IRQ_WDTIMER
+        int "Watch Dog Timer"
+        default 13
+
+        help
+          Enter the priority numbers between 7-13 ONLY.  Others are Reserved.
+          This applies to all the above.  It is not recommended to assign the
+          highest priority number 7 to UART or any other device.
+
+endmenu
+
+endmenu
+
+endif