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>

12 files changed, 6700 insertions, 0 deletions

diff --git a/include/asm-blackfin/mach-bf537/anomaly.h b/include/asm-blackfin/mach-bf537/anomaly.h
new file mode 100644
index 00000000000..7f040f5ba01
--- /dev/null
+++ b/include/asm-blackfin/mach-bf537/anomaly.h
@@ -0,0 +1,120 @@
+
+/*
+ * File:         include/asm-blackfin/mach-bf537/anomaly.h
+ * Based on:
+ * Author:
+ *
+ * Created:
+ * Description:
+ *
+ * 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.
+ */
+
+/* This file shoule be up to date with:
+ *  - Revision J, June 1, 2006; ADSP-BF537 Blackfin Processor Anomaly List
+ *  - Revision I, June 1, 2006; ADSP-BF536 Blackfin Processor Anomaly List
+ *  - Revision J, June 1, 2006; ADSP-BF534 Blackfin Processor Anomaly List
+ */
+
+#ifndef _MACH_ANOMALY_H_
+#define _MACH_ANOMALY_H_
+
+/* We do not support 0.1 silicon - sorry */
+#if (defined(CONFIG_BF_REV_0_1))
+#error Kernel will not work on BF537/6/4 Version 0.1
+#endif
+
+#if (defined(CONFIG_BF_REV_0_3) || defined(CONFIG_BF_REV_0_2))
+#define ANOMALY_05000074 /* A multi issue instruction with dsp32shiftimm in
+                            slot1 and store of a P register in slot 2 is not
+                            supported */
+#define ANOMALY_05000119 /* DMA_RUN bit is not valid after a Peripheral Receive
+                            Channel DMA stops */
+#define ANOMALY_05000122 /* Rx.H can not be used to access 16-bit System MMR
+                            registers. */
+#define ANOMALY_05000166 /* PPI Data Lengths Between 8 and 16 do not zero out
+                            upper bits*/
+#define ANOMALY_05000180 /* PPI_DELAY not functional in PPI modes with 0 frame
+                            syncs */
+#if (defined(CONFIG_BF537) || defined(CONFIG_BF536))
+#define ANOMALY_05000247 /* CLKIN Buffer Output Enable Reset Behavior Is
+                            Changed */
+#endif
+#define ANOMALY_05000265 /* Sensitivity to noise with slow input edge rates on
+                            SPORT external receive and transmit clocks. */
+#define ANOMALY_05000272 /* Certain data cache write through modes fail for
+                            VDDint <=0.9V */
+#define ANOMALY_05000273 /* Writes to Synchronous SDRAM memory may be lost */
+#define ANOMALY_05000277 /* Writes to a flag data register one SCLK cycle after
+                            an edge is detected may clear interrupt */
+#define ANOMALY_05000281 /* False Hardware Error Exception when ISR context is
+                            not restored */
+#define ANOMALY_05000282 /* Memory DMA corruption with 32-bit data and traffic
+                            control */
+#define ANOMALY_05000283 /* A system MMR write is stalled indefinitely when
+                            killed in a particular stage*/
+#define ANOMALY_05000312 /* Errors when SSYNC, CSYNC, or loads to LT, LB and LC
+			    registers are interrupted */
+#endif
+
+#if defined(CONFIG_BF_REV_0_2)
+#define ANOMALY_05000244 /* With instruction cache enabled, a CSYNC or SSYNC or
+                            IDLE around a Change of Control causes
+                            unpredictable results */
+#define ANOMALY_05000250 /* Incorrect Bit-Shift of Data Word in Multichannel
+                            (TDM) */
+#if (defined(CONFIG_BF537) || defined(CONFIG_BF536))
+#define ANOMALY_05000252 /* EMAC Tx DMA error after an early frame abort */
+#endif
+#define ANOMALY_05000253 /* Maximum external clock speed for Timers */
+#define ANOMALY_05000255 /* Entering Hibernate Mode with RTC Seconds event
+                            interrupt not functional */
+#if (defined(CONFIG_BF537) || defined(CONFIG_BF536))
+#define ANOMALY_05000256 /* EMAC MDIO input latched on wrong MDC edge */
+#endif
+#define ANOMALY_05000257 /* An interrupt or exception during short Hardware
+                            loops may cause the instruction fetch unit to
+                            malfunction */
+#define ANOMALY_05000258 /* Instruction Cache is corrupted when bit 9 and 12 of
+                            the ICPLB Data registers differ */
+#define ANOMALY_05000260 /* ICPLB_STATUS MMR register may be corrupted */
+#define ANOMALY_05000261 /* DCPLB_FAULT_ADDR MMR register may be corrupted */
+#define ANOMALY_05000262 /* Stores to data cache may be lost */
+#define ANOMALY_05000263 /* Hardware loop corrupted when taking an ICPLB exception */
+#define ANOMALY_05000264 /* A Sync instruction (CSYNC, SSYNC) or an IDLE
+                            instruction will cause an infinite stall in the
+                            second to last instruction in a hardware loop */
+#define ANOMALY_05000268 /* Memory DMA error when peripheral DMA is running
+                            and non-zero DEB_TRAFFIC_PERIOD value */
+#define ANOMALY_05000270 /* High I/O activity causes the output voltage of the
+                            internal voltage regulator (VDDint) to decrease */
+#define ANOMALY_05000277 /* Writes to a flag data register one SCLK cycle after
+                            an edge is detected may clear interrupt */
+#define ANOMALY_05000278 /* Disabling Peripherals with DMA running may cause
+                            DMA system instability */
+#define ANOMALY_05000280 /* SPI Master boot mode does not work well with
+                            Atmel Dataflash devices */
+
+#endif  /* CONFIG_BF_REV_0_2 */
+
+#endif /* _MACH_ANOMALY_H_ */
diff --git a/include/asm-blackfin/mach-bf537/bf537.h b/include/asm-blackfin/mach-bf537/bf537.h
new file mode 100644
index 00000000000..b8924cd7730
--- /dev/null
+++ b/include/asm-blackfin/mach-bf537/bf537.h
@@ -0,0 +1,287 @@
+/*
+ * File:         include/asm-blackfin/mach-bf537/bf537.h
+ * Based on:
+ * Author:
+ *
+ * Created:
+ * Description:  SYSTEM MMR REGISTER AND MEMORY MAP FOR ADSP-BF537
+ *
+ * Modified:
+ *               Copyright 2004-2006 Analog Devices Inc.
+ *
+ * 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 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, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifndef __MACH_BF537_H__
+#define __MACH_BF537_H__
+
+#define SUPPORTED_REVID 2
+
+/* Masks for generic ERROR IRQ demultiplexing used in int-priority-sc.c */
+
+#define SPI_ERR_MASK (TXCOL | RBSY | MODF | TXE)	/* SPI_STAT */
+#define SPORT_ERR_MASK (ROVF | RUVF | TOVF | TUVF)	/* SPORTx_STAT */
+#define PPI_ERR_MASK (0xFFFF & ~FLD)	/* PPI_STATUS */
+#define EMAC_ERR_MASK (PHYINT | MMCINT | RXFSINT | TXFSINT | WAKEDET | RXDMAERR | TXDMAERR | STMDONE)	/* EMAC_SYSTAT */
+#define UART_ERR_MASK_STAT1 (0x4)	/* UARTx_IIR */
+#define UART_ERR_MASK_STAT0 (0x2)	/* UARTx_IIR */
+#define CAN_ERR_MASK  (EWTIF | EWRIF | EPIF | BOIF | WUIF | UIAIF | AAIF | RMLIF | UCEIF | EXTIF | ADIF)	/* CAN_GIF */
+
+#define OFFSET_(x) ((x) & 0x0000FFFF)
+
+/*some misc defines*/
+#define IMASK_IVG15		0x8000
+#define IMASK_IVG14		0x4000
+#define IMASK_IVG13		0x2000
+#define IMASK_IVG12		0x1000
+
+#define IMASK_IVG11		0x0800
+#define IMASK_IVG10		0x0400
+#define IMASK_IVG9		0x0200
+#define IMASK_IVG8		0x0100
+
+#define IMASK_IVG7		0x0080
+#define IMASK_IVGTMR	0x0040
+#define IMASK_IVGHW		0x0020
+
+/***************************/
+
+
+#define BLKFIN_DSUBBANKS	4
+#define BLKFIN_DWAYS		2
+#define BLKFIN_DLINES		64
+#define BLKFIN_ISUBBANKS	4
+#define BLKFIN_IWAYS		4
+#define BLKFIN_ILINES		32
+
+#define WAY0_L			0x1
+#define WAY1_L			0x2
+#define WAY01_L			0x3
+#define WAY2_L			0x4
+#define WAY02_L			0x5
+#define	WAY12_L			0x6
+#define	WAY012_L		0x7
+
+#define	WAY3_L			0x8
+#define	WAY03_L			0x9
+#define	WAY13_L			0xA
+#define	WAY013_L		0xB
+
+#define	WAY32_L			0xC
+#define	WAY320_L		0xD
+#define	WAY321_L		0xE
+#define	WAYALL_L		0xF
+
+#define DMC_ENABLE (2<<2)	/*yes, 2, not 1 */
+
+/********************************* EBIU Settings ************************************/
+#define AMBCTL0VAL	((CONFIG_BANK_1 << 16) | CONFIG_BANK_0)
+#define AMBCTL1VAL	((CONFIG_BANK_3 << 16) | CONFIG_BANK_2)
+
+#ifdef CONFIG_C_AMBEN_ALL
+#define V_AMBEN AMBEN_ALL
+#endif
+#ifdef CONFIG_C_AMBEN
+#define V_AMBEN 0x0
+#endif
+#ifdef CONFIG_C_AMBEN_B0
+#define V_AMBEN AMBEN_B0
+#endif
+#ifdef CONFIG_C_AMBEN_B0_B1
+#define V_AMBEN AMBEN_B0_B1
+#endif
+#ifdef CONFIG_C_AMBEN_B0_B1_B2
+#define V_AMBEN AMBEN_B0_B1_B2
+#endif
+#ifdef CONFIG_C_AMCKEN
+#define V_AMCKEN AMCKEN
+#else
+#define V_AMCKEN 0x0
+#endif
+#ifdef CONFIG_C_CDPRIO
+#define V_CDPRIO 0x100
+#else
+#define V_CDPRIO 0x0
+#endif
+
+#define AMGCTLVAL	(V_AMBEN | V_AMCKEN | V_CDPRIO)
+
+#define MAX_VC	650000000
+#define MIN_VC	50000000
+
+/********************************PLL Settings **************************************/
+#ifdef CONFIG_BFIN_KERNEL_CLOCK
+#if (CONFIG_VCO_MULT < 0)
+#error "VCO Multiplier is less than 0. Please select a different value"
+#endif
+
+#if (CONFIG_VCO_MULT == 0)
+#error "VCO Multiplier should be greater than 0. Please select a different value"
+#endif
+
+#if (CONFIG_VCO_MULT > 64)
+#error "VCO Multiplier is more than 64. Please select a different value"
+#endif
+
+#ifndef CONFIG_CLKIN_HALF
+#define CONFIG_VCO_HZ	(CONFIG_CLKIN_HZ * CONFIG_VCO_MULT)
+#else
+#define CONFIG_VCO_HZ	((CONFIG_CLKIN_HZ * CONFIG_VCO_MULT)/2)
+#endif
+
+#ifndef CONFIG_PLL_BYPASS
+#define CONFIG_CCLK_HZ	(CONFIG_VCO_HZ/CONFIG_CCLK_DIV)
+#define CONFIG_SCLK_HZ	(CONFIG_VCO_HZ/CONFIG_SCLK_DIV)
+#else
+#define CONFIG_CCLK_HZ	CONFIG_CLKIN_HZ
+#define CONFIG_SCLK_HZ	CONFIG_CLKIN_HZ
+#endif
+
+#if (CONFIG_SCLK_DIV < 1)
+#error "SCLK DIV cannot be less than 1 or more than 15. Please select a proper value"
+#endif
+
+#if (CONFIG_SCLK_DIV > 15)
+#error "SCLK DIV cannot be less than 1 or more than 15. Please select a proper value"
+#endif
+
+#if (CONFIG_CCLK_DIV != 1)
+#if (CONFIG_CCLK_DIV != 2)
+#if (CONFIG_CCLK_DIV != 4)
+#if (CONFIG_CCLK_DIV != 8)
+#error "CCLK DIV can be 1,2,4 or 8 only. Please select a proper value"
+#endif
+#endif
+#endif
+#endif
+
+#if (CONFIG_VCO_HZ > MAX_VC)
+#error "VCO selected is more than maximum value. Please change the VCO multipler"
+#endif
+
+#if (CONFIG_SCLK_HZ > 133000000)
+#error "Sclk value selected is more than maximum. Please select a proper value for SCLK multiplier"
+#endif
+
+#if (CONFIG_SCLK_HZ < 27000000)
+#error "Sclk value selected is less than minimum. Please select a proper value for SCLK multiplier"
+#endif
+
+#if (CONFIG_SCLK_HZ >= CONFIG_CCLK_HZ)
+#if (CONFIG_SCLK_HZ != CONFIG_CLKIN_HZ)
+#if (CONFIG_CCLK_HZ != CONFIG_CLKIN_HZ)
+#error "Please select sclk less than cclk"
+#endif
+#endif
+#endif
+
+#if (CONFIG_CCLK_DIV == 1)
+#define CONFIG_CCLK_ACT_DIV   CCLK_DIV1
+#endif
+#if (CONFIG_CCLK_DIV == 2)
+#define CONFIG_CCLK_ACT_DIV   CCLK_DIV2
+#endif
+#if (CONFIG_CCLK_DIV == 4)
+#define CONFIG_CCLK_ACT_DIV   CCLK_DIV4
+#endif
+#if (CONFIG_CCLK_DIV == 8)
+#define CONFIG_CCLK_ACT_DIV   CCLK_DIV8
+#endif
+#ifndef CONFIG_CCLK_ACT_DIV
+#define CONFIG_CCLK_ACT_DIV   CONFIG_CCLK_DIV_not_defined_properly
+#endif
+
+#if defined(ANOMALY_05000273) && (CONFIG_CCLK_DIV == 1)
+#error ANOMALY 05000273, please make sure CCLK is at least 2x SCLK
+#endif
+
+#endif				/* CONFIG_BFIN_KERNEL_CLOCK */
+
+#ifdef CONFIG_BF537
+#define CPU "BF537"
+#define CPUID 0x027c8000
+#endif
+#ifdef CONFIG_BF536
+#define CPU "BF536"
+#define CPUID 0x027c8000
+#endif
+#ifdef CONFIG_BF534
+#define CPU "BF534"
+#define CPUID 0x027c6000
+#endif
+#ifndef CPU
+#define	CPU "UNKNOWN"
+#define CPUID 0x0
+#endif
+
+#if (CONFIG_MEM_SIZE % 4)
+#error "SDRAM mem size must be multible of 4MB"
+#endif
+
+#define SDRAM_IGENERIC    (CPLB_L1_CHBL | CPLB_USER_RD | CPLB_VALID | CPLB_PORTPRIO)
+#define SDRAM_IKERNEL     (SDRAM_IGENERIC | CPLB_LOCK)
+#define L1_IMEMORY        (               CPLB_USER_RD | CPLB_VALID | CPLB_LOCK)
+#define SDRAM_INON_CHBL   (               CPLB_USER_RD | CPLB_VALID)
+
+/*Use the menuconfig cache policy here - CONFIG_BLKFIN_WT/CONFIG_BLKFIN_WB*/
+
+#define ANOMALY_05000158_WORKAROUND		0x200
+#ifdef CONFIG_BLKFIN_WB		/*Write Back Policy */
+#define SDRAM_DGENERIC   (CPLB_L1_CHBL | CPLB_DIRTY \
+			| CPLB_SUPV_WR | CPLB_USER_WR | CPLB_USER_RD | CPLB_VALID | ANOMALY_05000158_WORKAROUND)
+#else				/*Write Through */
+#define SDRAM_DGENERIC   (CPLB_L1_CHBL | CPLB_WT | CPLB_L1_AOW \
+			| CPLB_SUPV_WR | CPLB_USER_WR | CPLB_USER_RD | CPLB_VALID | ANOMALY_05000158_WORKAROUND | CPLB_DIRTY )
+#endif
+
+
+#define L1_DMEMORY       (CPLB_SUPV_WR | CPLB_USER_WR | CPLB_USER_RD | CPLB_VALID | ANOMALY_05000158_WORKAROUND | CPLB_LOCK | CPLB_DIRTY )
+#define SDRAM_DNON_CHBL  (CPLB_SUPV_WR | CPLB_USER_WR | CPLB_USER_RD | CPLB_VALID | ANOMALY_05000158_WORKAROUND | CPLB_DIRTY )
+#define SDRAM_EBIU       (CPLB_SUPV_WR | CPLB_USER_WR | CPLB_USER_RD | CPLB_VALID | ANOMALY_05000158_WORKAROUND | CPLB_DIRTY )
+#define SDRAM_OOPS  	 (CPLB_VALID | ANOMALY_05000158_WORKAROUND | CPLB_LOCK | CPLB_DIRTY )
+
+#define SIZE_1K 0x00000400	/* 1K */
+#define SIZE_4K 0x00001000	/* 4K */
+#define SIZE_1M 0x00100000	/* 1M */
+#define SIZE_4M 0x00400000	/* 4M */
+
+#define MAX_CPLBS (16 * 2)
+
+/*
+* Number of required data CPLB switchtable entries
+* MEMSIZE / 4 (we mostly install 4M page size CPLBs
+* approx 16 for smaller 1MB page size CPLBs for allignment purposes
+* 1 for L1 Data Memory
+* 1 for CONFIG_DEBUG_HUNT_FOR_ZERO
+* 1 for ASYNC Memory
+*/
+
+
+#define MAX_SWITCH_D_CPLBS (((CONFIG_MEM_SIZE / 4) + 16 + 1 + 1 + 1) * 2)
+
+/*
+* Number of required instruction CPLB switchtable entries
+* MEMSIZE / 4 (we mostly install 4M page size CPLBs
+* approx 12 for smaller 1MB page size CPLBs for allignment purposes
+* 1 for L1 Instruction Memory
+* 1 for CONFIG_DEBUG_HUNT_FOR_ZERO
+*/
+
+#define MAX_SWITCH_I_CPLBS (((CONFIG_MEM_SIZE / 4) + 12 + 1 + 1) * 2)
+
+#endif				/* __MACH_BF537_H__  */
diff --git a/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h
new file mode 100644
index 00000000000..8f5d9c4d8d5
--- /dev/null
+++ b/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h
@@ -0,0 +1,147 @@
+#include <linux/serial.h>
+#include <asm/dma.h>
+
+#define NR_PORTS		2
+
+#define OFFSET_THR              0x00	/* Transmit Holding register            */
+#define OFFSET_RBR              0x00	/* Receive Buffer register              */
+#define OFFSET_DLL              0x00	/* Divisor Latch (Low-Byte)             */
+#define OFFSET_IER              0x04	/* Interrupt Enable Register            */
+#define OFFSET_DLH              0x04	/* Divisor Latch (High-Byte)            */
+#define OFFSET_IIR              0x08	/* Interrupt Identification Register    */
+#define OFFSET_LCR              0x0C	/* Line Control Register                */
+#define OFFSET_MCR              0x10	/* Modem Control Register               */
+#define OFFSET_LSR              0x14	/* Line Status Register                 */
+#define OFFSET_MSR              0x18	/* Modem Status Register                */
+#define OFFSET_SCR              0x1C	/* SCR Scratch Register                 */
+#define OFFSET_GCTL             0x24	/* Global Control Register              */
+
+#define UART_GET_CHAR(uart)     bfin_read16(((uart)->port.membase + OFFSET_RBR))
+#define UART_GET_DLL(uart)	bfin_read16(((uart)->port.membase + OFFSET_DLL))
+#define UART_GET_IER(uart)      bfin_read16(((uart)->port.membase + OFFSET_IER))
+#define UART_GET_DLH(uart)	bfin_read16(((uart)->port.membase + OFFSET_DLH))
+#define UART_GET_IIR(uart)      bfin_read16(((uart)->port.membase + OFFSET_IIR))
+#define UART_GET_LCR(uart)      bfin_read16(((uart)->port.membase + OFFSET_LCR))
+#define UART_GET_LSR(uart)      bfin_read16(((uart)->port.membase + OFFSET_LSR))
+#define UART_GET_GCTL(uart)     bfin_read16(((uart)->port.membase + OFFSET_GCTL))
+
+#define UART_PUT_CHAR(uart,v)   bfin_write16(((uart)->port.membase + OFFSET_THR),v)
+#define UART_PUT_DLL(uart,v)    bfin_write16(((uart)->port.membase + OFFSET_DLL),v)
+#define UART_PUT_IER(uart,v)    bfin_write16(((uart)->port.membase + OFFSET_IER),v)
+#define UART_PUT_DLH(uart,v)    bfin_write16(((uart)->port.membase + OFFSET_DLH),v)
+#define UART_PUT_LCR(uart,v)    bfin_write16(((uart)->port.membase + OFFSET_LCR),v)
+#define UART_PUT_GCTL(uart,v)   bfin_write16(((uart)->port.membase + OFFSET_GCTL),v)
+
+#if defined(CONFIG_BFIN_UART0_CTSRTS) || defined(CONFIG_BFIN_UART1_CTSRTS)
+# define CONFIG_SERIAL_BFIN_CTSRTS
+
+# ifndef CONFIG_UART0_CTS_PIN
+#  define CONFIG_UART0_CTS_PIN -1
+# endif
+
+# ifndef CONFIG_UART0_RTS_PIN
+#  define CONFIG_UART0_RTS_PIN -1
+# endif
+
+# ifndef CONFIG_UART1_CTS_PIN
+#  define CONFIG_UART1_CTS_PIN -1
+# endif
+
+# ifndef CONFIG_UART1_RTS_PIN
+#  define CONFIG_UART1_RTS_PIN -1
+# endif
+#endif
+/*
+ * The pin configuration is different from schematic
+ */
+struct bfin_serial_port {
+        struct uart_port        port;
+        unsigned int            old_status;
+#ifdef CONFIG_SERIAL_BFIN_DMA
+	int			tx_done;
+	int			tx_count;
+	struct circ_buf		rx_dma_buf;
+	struct timer_list       rx_dma_timer;
+	int			rx_dma_nrows;
+	unsigned int		tx_dma_channel;
+	unsigned int		rx_dma_channel;
+	struct work_struct	tx_dma_workqueue;
+#else
+	struct work_struct 	cts_workqueue;
+#endif
+#ifdef CONFIG_SERIAL_BFIN_CTSRTS
+	int		cts_pin;
+	int 		rts_pin;
+#endif
+};
+
+struct bfin_serial_port bfin_serial_ports[NR_PORTS];
+struct bfin_serial_res {
+	unsigned long	uart_base_addr;
+	int		uart_irq;
+#ifdef CONFIG_SERIAL_BFIN_DMA
+	unsigned int	uart_tx_dma_channel;
+	unsigned int	uart_rx_dma_channel;
+#endif
+#ifdef CONFIG_SERIAL_BFIN_CTSRTS
+	int	uart_cts_pin;
+	int	uart_rts_pin;
+#endif
+};
+
+struct bfin_serial_res bfin_serial_resource[] = {
+#ifdef CONFIG_SERIAL_BFIN_UART0
+	{
+	0xFFC00400,
+	IRQ_UART0_RX,
+#ifdef CONFIG_SERIAL_BFIN_DMA
+	CH_UART0_TX,
+	CH_UART0_RX,
+#endif
+#ifdef CONFIG_BFIN_UART0_CTSRTS
+	CONFIG_UART0_CTS_PIN,
+	CONFIG_UART0_RTS_PIN,
+#endif
+	},
+#endif
+#ifdef CONFIG_SERIAL_BFIN_UART1
+	{
+	0xFFC02000,
+	IRQ_UART1_RX,
+#ifdef CONFIG_SERIAL_BFIN_DMA
+	CH_UART1_TX,
+	CH_UART1_RX,
+#endif
+#ifdef CONFIG_BFIN_UART1_CTSRTS
+	CONFIG_UART1_CTS_PIN,
+	CONFIG_UART1_RTS_PIN,
+#endif
+	},
+#endif
+};
+
+int nr_ports = ARRAY_SIZE(bfin_serial_resource);
+
+static void bfin_serial_hw_init(struct bfin_serial_port *uart)
+{
+	unsigned short val;
+	val = bfin_read16(BFIN_PORT_MUX);
+	val &= ~(PFDE | PFTE);
+	bfin_write16(BFIN_PORT_MUX, val);
+
+	val = bfin_read16(PORTF_FER);
+	val |= 0xF;
+	bfin_write16(PORTF_FER, val);
+
+#ifdef CONFIG_SERIAL_BFIN_CTSRTS
+	if (uart->cts_pin >= 0) {
+		gpio_request(uart->cts_pin, NULL);
+		gpio_direction_input(uart->cts_pin);
+	}
+
+	if (uart->rts_pin >= 0) {
+		gpio_request(uart->rts_pin, NULL);
+		gpio_direction_output(uart->rts_pin);
+	}
+#endif
+}
diff --git a/include/asm-blackfin/mach-bf537/blackfin.h b/include/asm-blackfin/mach-bf537/blackfin.h
new file mode 100644
index 00000000000..bbd97051ec9
--- /dev/null
+++ b/include/asm-blackfin/mach-bf537/blackfin.h
@@ -0,0 +1,430 @@
+/*
+ * File:         include/asm-blackfin/mach-bf537/blackfin.h
+ * Based on:
+ * Author:
+ *
+ * Created:
+ * Description:
+ *
+ * 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 _MACH_BLACKFIN_H_
+#define _MACH_BLACKFIN_H_
+
+#define BF537_FAMILY
+
+#include "bf537.h"
+#include "mem_map.h"
+#include "defBF534.h"
+#include "anomaly.h"
+
+#if defined(CONFIG_BF537) || defined(CONFIG_BF536)
+#include "defBF537.h"
+#endif
+
+#if !(defined(__ASSEMBLY__) || defined(ASSEMBLY))
+#include "cdefBF534.h"
+
+/* UART 0*/
+#define bfin_read_UART_THR() bfin_read_UART0_THR()
+#define bfin_write_UART_THR(val) bfin_write_UART0_THR(val)
+#define bfin_read_UART_RBR() bfin_read_UART0_RBR()
+#define bfin_write_UART_RBR(val) bfin_write_UART0_RBR(val)
+#define bfin_read_UART_DLL() bfin_read_UART0_DLL()
+#define bfin_write_UART_DLL(val) bfin_write_UART0_DLL(val)
+#define bfin_read_UART_IER() bfin_read_UART0_IER()
+#define bfin_write_UART_IER(val) bfin_write_UART0_IER(val)
+#define bfin_read_UART_DLH() bfin_read_UART0_DLH()
+#define bfin_write_UART_DLH(val) bfin_write_UART0_DLH(val)
+#define bfin_read_UART_IIR() bfin_read_UART0_IIR()
+#define bfin_write_UART_IIR(val) bfin_write_UART0_IIR(val)
+#define bfin_read_UART_LCR() bfin_read_UART0_LCR()
+#define bfin_write_UART_LCR(val) bfin_write_UART0_LCR(val)
+#define bfin_read_UART_MCR() bfin_read_UART0_MCR()
+#define bfin_write_UART_MCR(val) bfin_write_UART0_MCR(val)
+#define bfin_read_UART_LSR() bfin_read_UART0_LSR()
+#define bfin_write_UART_LSR(val) bfin_write_UART0_LSR(val)
+#define bfin_read_UART_SCR() bfin_read_UART0_SCR()
+#define bfin_write_UART_SCR(val) bfin_write_UART0_SCR(val)
+#define bfin_read_UART_GCTL() bfin_read_UART0_GCTL()
+#define bfin_write_UART_GCTL(val) bfin_write_UART0_GCTL(val)
+
+#if defined(CONFIG_BF537) || defined(CONFIG_BF536)
+#include "cdefBF537.h"
+#endif
+#endif
+
+/* MAP used DEFINES from BF533 to BF537 - so we don't need to change them in the driver, kernel, etc. */
+
+/* UART_IIR Register */
+#define STATUS(x)	((x << 1) & 0x06)
+#define STATUS_P1	0x02
+#define STATUS_P0	0x01
+
+/* UART 0*/
+
+/* DMA Channnel */
+#define bfin_read_CH_UART_RX() bfin_read_CH_UART0_RX()
+#define bfin_write_CH_UART_RX(val) bfin_write_CH_UART0_RX(val)
+#define CH_UART_RX CH_UART0_RX
+#define bfin_read_CH_UART_TX() bfin_read_CH_UART0_TX()
+#define bfin_write_CH_UART_TX(val) bfin_write_CH_UART0_TX(val)
+#define CH_UART_TX CH_UART0_TX
+
+/* System Interrupt Controller */
+#define bfin_read_IRQ_UART_RX() bfin_read_IRQ_UART0_RX()
+#define bfin_write_IRQ_UART_RX(val) bfin_write_IRQ_UART0_RX(val)
+#define IRQ_UART_RX IRQ_UART0_RX
+#define bfin_read_IRQ_UART_TX() bfin_read_IRQ_UART0_TX()
+#define bfin_write_IRQ_UART_TX(val) bfin_write_IRQ_UART0_TX(val)
+#define	IRQ_UART_TX IRQ_UART0_TX
+#define bfin_read_IRQ_UART_ERROR() bfin_read_IRQ_UART0_ERROR()
+#define bfin_write_IRQ_UART_ERROR(val) bfin_write_IRQ_UART0_ERROR(val)
+#define	IRQ_UART_ERROR IRQ_UART0_ERROR
+
+/* MMR Registers*/
+#define bfin_read_UART_THR() bfin_read_UART0_THR()
+#define bfin_write_UART_THR(val) bfin_write_UART0_THR(val)
+#define UART_THR UART0_THR
+#define bfin_read_UART_RBR() bfin_read_UART0_RBR()
+#define bfin_write_UART_RBR(val) bfin_write_UART0_RBR(val)
+#define UART_RBR UART0_RBR
+#define bfin_read_UART_DLL() bfin_read_UART0_DLL()
+#define bfin_write_UART_DLL(val) bfin_write_UART0_DLL(val)
+#define UART_DLL UART0_DLL
+#define bfin_read_UART_IER() bfin_read_UART0_IER()
+#define bfin_write_UART_IER(val) bfin_write_UART0_IER(val)
+#define UART_IER UART0_IER
+#define bfin_read_UART_DLH() bfin_read_UART0_DLH()
+#define bfin_write_UART_DLH(val) bfin_write_UART0_DLH(val)
+#define UART_DLH UART0_DLH
+#define bfin_read_UART_IIR() bfin_read_UART0_IIR()
+#define bfin_write_UART_IIR(val) bfin_write_UART0_IIR(val)
+#define UART_IIR UART0_IIR
+#define bfin_read_UART_LCR() bfin_read_UART0_LCR()
+#define bfin_write_UART_LCR(val) bfin_write_UART0_LCR(val)
+#define UART_LCR UART0_LCR
+#define bfin_read_UART_MCR() bfin_read_UART0_MCR()
+#define bfin_write_UART_MCR(val) bfin_write_UART0_MCR(val)
+#define UART_MCR UART0_MCR
+#define bfin_read_UART_LSR() bfin_read_UART0_LSR()
+#define bfin_write_UART_LSR(val) bfin_write_UART0_LSR(val)
+#define UART_LSR UART0_LSR
+#define bfin_read_UART_SCR() bfin_read_UART0_SCR()
+#define bfin_write_UART_SCR(val) bfin_write_UART0_SCR(val)
+#define UART_SCR  UART0_SCR
+#define bfin_read_UART_GCTL() bfin_read_UART0_GCTL()
+#define bfin_write_UART_GCTL(val) bfin_write_UART0_GCTL(val)
+#define UART_GCTL UART0_GCTL
+
+/* DPMC*/
+#define bfin_read_STOPCK_OFF() bfin_read_STOPCK()
+#define bfin_write_STOPCK_OFF(val) bfin_write_STOPCK(val)
+#define STOPCK_OFF STOPCK
+
+/* FIO USE PORT F*/
+#ifdef CONFIG_BF537_PORT_F
+#define bfin_read_PORT_FER() bfin_read_PORTF_FER()
+#define bfin_write_PORT_FER(val) bfin_write_PORTF_FER(val)
+#define bfin_read_FIO_FLAG_D() bfin_read_PORTFIO()
+#define bfin_write_FIO_FLAG_D(val) bfin_write_PORTFIO(val)
+#define bfin_read_FIO_FLAG_C() bfin_read_PORTFIO_CLEAR()
+#define bfin_write_FIO_FLAG_C(val) bfin_write_PORTFIO_CLEAR(val)
+#define bfin_read_FIO_FLAG_S() bfin_read_PORTFIO_SET()
+#define bfin_write_FIO_FLAG_S(val) bfin_write_PORTFIO_SET(val)
+#define bfin_read_FIO_FLAG_T() bfin_read_PORTFIO_TOGGLE()
+#define bfin_write_FIO_FLAG_T(val) bfin_write_PORTFIO_TOGGLE(val)
+#define bfin_read_FIO_MASKA_D() bfin_read_PORTFIO_MASKA()
+#define bfin_write_FIO_MASKA_D(val) bfin_write_PORTFIO_MASKA(val)
+#define bfin_read_FIO_MASKA_C() bfin_read_PORTFIO_MASKA_CLEAR()
+#define bfin_write_FIO_MASKA_C(val) bfin_write_PORTFIO_MASKA_CLEAR(val)
+#define bfin_read_FIO_MASKA_S() bfin_read_PORTFIO_MASKA_SET()
+#define bfin_write_FIO_MASKA_S(val) bfin_write_PORTFIO_MASKA_SET(val)
+#define bfin_read_FIO_MASKA_T() bfin_read_PORTFIO_MASKA_TOGGLE()
+#define bfin_write_FIO_MASKA_T(val) bfin_write_PORTFIO_MASKA_TOGGLE(val)
+#define bfin_read_FIO_MASKB_D() bfin_read_PORTFIO_MASKB()
+#define bfin_write_FIO_MASKB_D(val) bfin_write_PORTFIO_MASKB(val)
+#define bfin_read_FIO_MASKB_C() bfin_read_PORTFIO_MASKB_CLEAR()
+#define bfin_write_FIO_MASKB_C(val) bfin_write_PORTFIO_MASKB_CLEAR(val)
+#define bfin_read_FIO_MASKB_S() bfin_read_PORTFIO_MASKB_SET()
+#define bfin_write_FIO_MASKB_S(val) bfin_write_PORTFIO_MASKB_SET(val)
+#define bfin_read_FIO_MASKB_T() bfin_read_PORTFIO_MASKB_TOGGLE()
+#define bfin_write_FIO_MASKB_T(val) bfin_write_PORTFIO_MASKB_TOGGLE(val)
+#define bfin_read_FIO_DIR() bfin_read_PORTFIO_DIR()
+#define bfin_write_FIO_DIR(val) bfin_write_PORTFIO_DIR(val)
+#define bfin_read_FIO_POLAR() bfin_read_PORTFIO_POLAR()
+#define bfin_write_FIO_POLAR(val) bfin_write_PORTFIO_POLAR(val)
+#define bfin_read_FIO_EDGE() bfin_read_PORTFIO_EDGE()
+#define bfin_write_FIO_EDGE(val) bfin_write_PORTFIO_EDGE(val)
+#define bfin_read_FIO_BOTH() bfin_read_PORTFIO_BOTH()
+#define bfin_write_FIO_BOTH(val) bfin_write_PORTFIO_BOTH(val)
+#define bfin_read_FIO_INEN() bfin_read_PORTFIO_INEN()
+#define bfin_write_FIO_INEN(val) bfin_write_PORTFIO_INEN(val)
+
+#define bfin_read_FIO_FLAG_D() bfin_read_PORTFIO()
+#define bfin_write_FIO_FLAG_D(val) bfin_write_PORTFIO(val)
+#define FIO_FLAG_D		PORTFIO
+#define bfin_read_FIO_FLAG_C() bfin_read_PORTFIO_CLEAR()
+#define bfin_write_FIO_FLAG_C(val) bfin_write_PORTFIO_CLEAR(val)
+#define FIO_FLAG_C		PORTFIO_CLEAR
+#define bfin_read_FIO_FLAG_S() bfin_read_PORTFIO_SET()
+#define bfin_write_FIO_FLAG_S(val) bfin_write_PORTFIO_SET(val)
+#define FIO_FLAG_S		PORTFIO_SET
+#define bfin_read_FIO_FLAG_T() bfin_read_PORTFIO_TOGGLE()
+#define bfin_write_FIO_FLAG_T(val) bfin_write_PORTFIO_TOGGLE(val)
+#define FIO_FLAG_T		PORTFIO_TOGGLE
+#define bfin_read_FIO_MASKA_D() bfin_read_PORTFIO_MASKA()
+#define bfin_write_FIO_MASKA_D(val) bfin_write_PORTFIO_MASKA(val)
+#define FIO_MASKA_D	    PORTFIO_MASKA
+#define bfin_read_FIO_MASKA_C() bfin_read_PORTFIO_MASKA_CLEAR()
+#define bfin_write_FIO_MASKA_C(val) bfin_write_PORTFIO_MASKA_CLEAR(val)
+#define FIO_MASKA_C     PORTFIO_MASKA_CLEAR
+#define bfin_read_FIO_MASKA_S() bfin_read_PORTFIO_MASKA_SET()
+#define bfin_write_FIO_MASKA_S(val) bfin_write_PORTFIO_MASKA_SET(val)
+#define FIO_MASKA_S     PORTFIO_MASKA_SET
+#define bfin_read_FIO_MASKA_T() bfin_read_PORTFIO_MASKA_TOGGLE()
+#define bfin_write_FIO_MASKA_T(val) bfin_write_PORTFIO_MASKA_TOGGLE(val)
+#define FIO_MASKA_T     PORTFIO_MASKA_TOGGLE
+#define bfin_read_FIO_MASKB_D() bfin_read_PORTFIO_MASKB()
+#define bfin_write_FIO_MASKB_D(val) bfin_write_PORTFIO_MASKB(val)
+#define FIO_MASKB_D     PORTFIO_MASKB
+#define bfin_read_FIO_MASKB_C() bfin_read_PORTFIO_MASKB_CLEAR()
+#define bfin_write_FIO_MASKB_C(val) bfin_write_PORTFIO_MASKB_CLEAR(val)
+#define FIO_MASKB_C     PORTFIO_MASKB_CLEAR
+#define bfin_read_FIO_MASKB_S() bfin_read_PORTFIO_MASKB_SET()
+#define bfin_write_FIO_MASKB_S(val) bfin_write_PORTFIO_MASKB_SET(val)
+#define FIO_MASKB_S     PORTFIO_MASKB_SET
+#define bfin_read_FIO_MASKB_T() bfin_read_PORTFIO_MASKB_TOGGLE()
+#define bfin_write_FIO_MASKB_T(val) bfin_write_PORTFIO_MASKB_TOGGLE(val)
+#define FIO_MASKB_T     PORTFIO_MASKB_TOGGLE
+#define bfin_read_FIO_DIR() bfin_read_PORTFIO_DIR()
+#define bfin_write_FIO_DIR(val) bfin_write_PORTFIO_DIR(val)
+#define FIO_DIR		    PORTFIO_DIR
+#define bfin_read_FIO_POLAR() bfin_read_PORTFIO_POLAR()
+#define bfin_write_FIO_POLAR(val) bfin_write_PORTFIO_POLAR(val)
+#define FIO_POLAR		PORTFIO_POLAR
+#define bfin_read_FIO_EDGE() bfin_read_PORTFIO_EDGE()
+#define bfin_write_FIO_EDGE(val) bfin_write_PORTFIO_EDGE(val)
+#define FIO_EDGE		PORTFIO_EDGE
+#define bfin_read_FIO_BOTH() bfin_read_PORTFIO_BOTH()
+#define bfin_write_FIO_BOTH(val) bfin_write_PORTFIO_BOTH(val)
+#define FIO_BOTH		PORTFIO_BOTH
+#define bfin_read_FIO_INEN() bfin_read_PORTFIO_INEN()
+#define bfin_write_FIO_INEN(val) bfin_write_PORTFIO_INEN(val)
+#define FIO_INEN		PORTFIO_INEN
+#endif
+
+/* FIO USE PORT G*/
+#ifdef CONFIG_BF537_PORT_G
+#define bfin_read_PORT_FER() bfin_read_PORTG_FER()
+#define bfin_write_PORT_FER(val) bfin_write_PORTG_FER(val)
+#define bfin_read_FIO_FLAG_D() bfin_read_PORTGIO()
+#define bfin_write_FIO_FLAG_D(val) bfin_write_PORTGIO(val)
+#define bfin_read_FIO_FLAG_C() bfin_read_PORTGIO_CLEAR()
+#define bfin_write_FIO_FLAG_C(val) bfin_write_PORTGIO_CLEAR(val)
+#define bfin_read_FIO_FLAG_S() bfin_read_PORTGIO_SET()
+#define bfin_write_FIO_FLAG_S(val) bfin_write_PORTGIO_SET(val)
+#define bfin_read_FIO_FLAG_T() bfin_read_PORTGIO_TOGGLE()
+#define bfin_write_FIO_FLAG_T(val) bfin_write_PORTGIO_TOGGLE(val)
+#define bfin_read_FIO_MASKA_D() bfin_read_PORTGIO_MASKA()
+#define bfin_write_FIO_MASKA_D(val) bfin_write_PORTGIO_MASKA(val)
+#define bfin_read_FIO_MASKA_C() bfin_read_PORTGIO_MASKA_CLEAR()
+#define bfin_write_FIO_MASKA_C(val) bfin_write_PORTGIO_MASKA_CLEAR(val)
+#define bfin_read_FIO_MASKA_S() bfin_read_PORTGIO_MASKA_SET()
+#define bfin_write_FIO_MASKA_S(val) bfin_write_PORTGIO_MASKA_SET(val)
+#define bfin_read_FIO_MASKA_T() bfin_read_PORTGIO_MASKA_TOGGLE()
+#define bfin_write_FIO_MASKA_T(val) bfin_write_PORTGIO_MASKA_TOGGLE(val)
+#define bfin_read_FIO_MASKB_D() bfin_read_PORTGIO_MASKB()
+#define bfin_write_FIO_MASKB_D(val) bfin_write_PORTGIO_MASKB(val)
+#define bfin_read_FIO_MASKB_C() bfin_read_PORTGIO_MASKB_CLEAR()
+#define bfin_write_FIO_MASKB_C(val) bfin_write_PORTGIO_MASKB_CLEAR(val)
+#define bfin_read_FIO_MASKB_S() bfin_read_PORTGIO_MASKB_SET()
+#define bfin_write_FIO_MASKB_S(val) bfin_write_PORTGIO_MASKB_SET(val)
+#define bfin_read_FIO_MASKB_T() bfin_read_PORTGIO_MASKB_TOGGLE()
+#define bfin_write_FIO