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, 219 insertions, 0 deletions

diff --git a/include/asm-blackfin/mach-bf537/irq.h b/include/asm-blackfin/mach-bf537/irq.h
new file mode 100644
index 000000000000..8af2a832ef6b
--- /dev/null
+++ b/include/asm-blackfin/mach-bf537/irq.h
@@ -0,0 +1,219 @@
+/*
+ * file:         include/asm-blackfin/mach-bf537/irq.h
+ * based on:
+ * author:
+ *
+ * created:
+ * description:
+ *	system mmr register map
+ * rev:
+ *
+ * modified:
+ *
+ *
+ * bugs:         enter bugs at http://blackfin.uclinux.org/
+ *
+ * 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, 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; see the file copying.
+ * if not, write to the free software foundation,
+ * 59 temple place - suite 330, boston, ma 02111-1307, usa.
+ */
+
+#ifndef _BF537_IRQ_H_
+#define _BF537_IRQ_H_
+
+/*
+ * Interrupt source definitions
+             Event Source    Core Event Name
+Core        Emulation               **
+ Events         (highest priority)  EMU         0
+            Reset                   RST         1
+            NMI                     NMI         2
+            Exception               EVX         3
+            Reserved                --          4
+            Hardware Error          IVHW        5
+            Core Timer              IVTMR       6 *
+
+.....
+
+            Software Interrupt 1    IVG14       31
+            Software Interrupt 2    --
+                 (lowest priority)  IVG15       32 *
+ */
+
+#define SYS_IRQS        41
+#define NR_PERI_INTS    32
+
+/* The ABSTRACT IRQ definitions */
+/** the first seven of the following are fixed, the rest you change if you need to **/
+#define IRQ_EMU             0	/*Emulation */
+#define IRQ_RST             1	/*reset */
+#define IRQ_NMI             2	/*Non Maskable */
+#define IRQ_EVX             3	/*Exception */
+#define IRQ_UNUSED          4	/*- unused interrupt*/
+#define IRQ_HWERR           5	/*Hardware Error */
+#define IRQ_CORETMR         6	/*Core timer */
+
+#define IRQ_PLL_WAKEUP      7	/*PLL Wakeup Interrupt */
+#define IRQ_DMA_ERROR       8	/*DMA Error (general) */
+#define IRQ_GENERIC_ERROR   9	/*GENERIC Error Interrupt */
+#define IRQ_RTC             10	/*RTC Interrupt */
+#define IRQ_PPI             11	/*DMA0 Interrupt (PPI) */
+#define IRQ_SPORT0_RX       12	/*DMA3 Interrupt (SPORT0 RX) */
+#define IRQ_SPORT0_TX       13	/*DMA4 Interrupt (SPORT0 TX) */
+#define IRQ_SPORT1_RX       14	/*DMA5 Interrupt (SPORT1 RX) */
+#define IRQ_SPORT1_TX       15	/*DMA6 Interrupt (SPORT1 TX) */
+#define IRQ_TWI             16	/*TWI Interrupt */
+#define IRQ_SPI             17	/*DMA7 Interrupt (SPI) */
+#define IRQ_UART0_RX        18	/*DMA8 Interrupt (UART0 RX) */
+#define IRQ_UART0_TX        19	/*DMA9 Interrupt (UART0 TX) */
+#define IRQ_UART1_RX        20	/*DMA10 Interrupt (UART1 RX) */
+#define IRQ_UART1_TX        21	/*DMA11 Interrupt (UART1 TX) */
+#define IRQ_CAN_RX          22	/*CAN Receive Interrupt */
+#define IRQ_CAN_TX          23	/*CAN Transmit Interrupt */
+#define IRQ_MAC_RX          24	/*DMA1 (Ethernet RX) Interrupt */
+#define IRQ_MAC_TX          25	/*DMA2 (Ethernet TX) Interrupt */
+#define IRQ_TMR0            26	/*Timer 0 */
+#define IRQ_TMR1            27	/*Timer 1 */
+#define IRQ_TMR2            28	/*Timer 2 */
+#define IRQ_TMR3            29	/*Timer 3 */
+#define IRQ_TMR4            30	/*Timer 4 */
+#define IRQ_TMR5            31	/*Timer 5 */
+#define IRQ_TMR6            32	/*Timer 6 */
+#define IRQ_TMR7            33	/*Timer 7 */
+#define IRQ_PROG_INTA       34	/* PF Ports F&G (PF15:0) Interrupt A */
+#define IRQ_PORTG_INTB      35	/* PF Port G (PF15:0) Interrupt B */
+#define IRQ_MEM_DMA0        36	/*(Memory DMA Stream 0) */
+#define IRQ_MEM_DMA1        37	/*(Memory DMA Stream 1) */
+#define IRQ_PROG_INTB	    38	/* PF Ports F (PF15:0) Interrupt B */
+#define IRQ_WATCH           38	/*Watch Dog Timer */
+#define IRQ_SW_INT1         40	/*Software Int 1 */
+#define IRQ_SW_INT2         41	/*Software Int 2 (reserved for SYSCALL) */
+
+#define IRQ_PPI_ERROR       42	/*PPI Error Interrupt */
+#define IRQ_CAN_ERROR       43	/*CAN Error Interrupt */
+#define IRQ_MAC_ERROR       44	/*PPI Error Interrupt */
+#define IRQ_SPORT0_ERROR    45	/*SPORT0 Error Interrupt */
+#define IRQ_SPORT1_ERROR    46	/*SPORT1 Error Interrupt */
+#define IRQ_SPI_ERROR       47	/*SPI Error Interrupt */
+#define IRQ_UART0_ERROR     48	/*UART Error Interrupt */
+#define IRQ_UART1_ERROR     49	/*UART Error Interrupt */
+
+#define IRQ_PF0         50
+#define IRQ_PF1         51
+#define IRQ_PF2         52
+#define IRQ_PF3         53
+#define IRQ_PF4         54
+#define IRQ_PF5         55
+#define IRQ_PF6         56
+#define IRQ_PF7         57
+#define IRQ_PF8         58
+#define IRQ_PF9         59
+#define IRQ_PF10        60
+#define IRQ_PF11        61
+#define IRQ_PF12        62
+#define IRQ_PF13        63
+#define IRQ_PF14        64
+#define IRQ_PF15        65
+
+#define IRQ_PG0         66
+#define IRQ_PG1         67
+#define IRQ_PG2         68
+#define IRQ_PG3         69
+#define IRQ_PG4         70
+#define IRQ_PG5         71
+#define IRQ_PG6         72
+#define IRQ_PG7         73
+#define IRQ_PG8         74
+#define IRQ_PG9         75
+#define IRQ_PG10        76
+#define IRQ_PG11        77
+#define IRQ_PG12        78
+#define IRQ_PG13        79
+#define IRQ_PG14        80
+#define IRQ_PG15        81
+
+#define IRQ_PH0         82
+#define IRQ_PH1         83
+#define IRQ_PH2         84
+#define IRQ_PH3         85
+#define IRQ_PH4         86
+#define IRQ_PH5         87
+#define IRQ_PH6         88
+#define IRQ_PH7         89
+#define IRQ_PH8         90
+#define IRQ_PH9         91
+#define IRQ_PH10        92
+#define IRQ_PH11        93
+#define IRQ_PH12        94
+#define IRQ_PH13        95
+#define IRQ_PH14        96
+#define IRQ_PH15        97
+
+#ifdef CONFIG_IRQCHIP_DEMUX_GPIO
+#define NR_IRQS     (IRQ_PH15+1)
+#else
+#define NR_IRQS     (IRQ_UART1_ERROR+1)
+#endif
+
+#define IVG7            7
+#define IVG8            8
+#define IVG9            9
+#define IVG10           10
+#define IVG11           11
+#define IVG12           12
+#define IVG13           13
+#define IVG14           14
+#define IVG15           15
+
+/* IAR0 BIT FIELDS*/
+#define IRQ_PLL_WAKEUP_POS  0
+#define IRQ_DMA_ERROR_POS   4
+#define IRQ_ERROR_POS       8
+#define IRQ_RTC_POS         12
+#define IRQ_PPI_POS         16
+#define IRQ_SPORT0_RX_POS   20
+#define IRQ_SPORT0_TX_POS   24
+#define IRQ_SPORT1_RX_POS   28
+
+/* IAR1 BIT FIELDS*/
+#define IRQ_SPORT1_TX_POS   0
+#define IRQ_TWI_POS         4
+#define IRQ_SPI_POS         8
+#define IRQ_UART0_RX_POS    12
+#define IRQ_UART0_TX_POS    16
+#define IRQ_UART1_RX_POS    20
+#define IRQ_UART1_TX_POS    24
+#define IRQ_CAN_RX_POS      28
+
+/* IAR2 BIT FIELDS*/
+#define IRQ_CAN_TX_POS      0
+#define IRQ_MAC_RX_POS      4
+#define IRQ_MAC_TX_POS      8
+#define IRQ_TMR0_POS        12
+#define IRQ_TMR1_POS        16
+#define IRQ_TMR2_POS        20
+#define IRQ_TMR3_POS        24
+#define IRQ_TMR4_POS        28
+
+/* IAR3 BIT FIELDS*/
+#define IRQ_TMR5_POS        0
+#define IRQ_TMR6_POS        4
+#define IRQ_TMR7_POS        8
+#define IRQ_PROG_INTA_POS   12
+#define IRQ_PORTG_INTB_POS   16
+#define IRQ_MEM_DMA0_POS    20
+#define IRQ_MEM_DMA1_POS    24
+#define IRQ_WATCH_POS       28
+
+#endif				/* _BF537_IRQ_H_ */