arch: remove blackfin port

The Analog Devices Blackfin port was added in 2007 and was rather
active for a while, but all work on it has come to a standstill
over time, as Analog have changed their product line-up.

Aaron Wu confirmed that the architecture port is no longer relevant,
and multiple people suggested removing blackfin independently because
of some of its oddities like a non-working SMP port, and the amount of
duplication between the chip variants, which cause extra work when
doing cross-architecture changes.

Link: https://docs.blackfin.uclinux.org/
Acked-by: Aaron Wu <Aaron.Wu@analog.com>
Acked-by: Bryan Wu <cooloney@gmail.com>
Cc: Steven Miao <realmz6@gmail.com>
Cc: Mike Frysinger <vapier@chromium.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 0 insertions, 215 deletions

diff --git a/arch/blackfin/mach-bf538/include/mach/anomaly.h b/arch/blackfin/mach-bf538/include/mach/anomaly.h
deleted file mode 100644
index eaac26973f6a..000000000000
--- a/arch/blackfin/mach-bf538/include/mach/anomaly.h
+++ /dev/null
@@ -1,215 +0,0 @@
-/*
- * DO NOT EDIT THIS FILE
- * This file is under version control at
- *   svn://sources.blackfin.uclinux.org/toolchain/trunk/proc-defs/header-frags/
- * and can be replaced with that version at any time
- * DO NOT EDIT THIS FILE
- *
- * Copyright 2004-2011 Analog Devices Inc.
- * Licensed under the Clear BSD license.
- */
-
-/* This file should be up to date with:
- *  - Revision J, 05/23/2011; ADSP-BF538/BF538F Blackfin Processor Anomaly List
- *  - Revision O, 05/23/2011; ADSP-BF539/BF539F Blackfin Processor Anomaly List
- */
-
-#ifndef _MACH_ANOMALY_H_
-#define _MACH_ANOMALY_H_
-
-/* We do not support old silicon - sorry */
-#if __SILICON_REVISION__ < 4
-# error will not work on BF538/BF539 silicon version 0.0, 0.1, 0.2, or 0.3
-#endif
-
-#if defined(__ADSPBF538__)
-# define ANOMALY_BF538 1
-#else
-# define ANOMALY_BF538 0
-#endif
-#if defined(__ADSPBF539__)
-# define ANOMALY_BF539 1
-#else
-# define ANOMALY_BF539 0
-#endif
-
-/* Multi-Issue Instruction with dsp32shiftimm in slot1 and P-reg Store in slot2 Not Supported */
-#define ANOMALY_05000074 (1)
-/* DMA_RUN Bit Is Not Valid after a Peripheral Receive Channel DMA Stops */
-#define ANOMALY_05000119 (1)
-/* Rx.H Cannot Be Used to Access 16-bit System MMR Registers */
-#define ANOMALY_05000122 (1)
-/* PPI Data Lengths between 8 and 16 Do Not Zero Out Upper Bits */
-#define ANOMALY_05000166 (1)
-/* PPI_COUNT Cannot Be Programmed to 0 in General Purpose TX or RX Modes */
-#define ANOMALY_05000179 (1)
-/* PPI_DELAY Not Functional in PPI Modes with 0 Frame Syncs */
-#define ANOMALY_05000180 (1)
-/* False I/O Pin Interrupts on Edge-Sensitive Inputs When Polarity Setting Is Changed */
-#define ANOMALY_05000193 (1)
-/* Current DMA Address Shows Wrong Value During Carry Fix */
-#define ANOMALY_05000199 (__SILICON_REVISION__ < 4)
-/* NMI Event at Boot Time Results in Unpredictable State */
-#define ANOMALY_05000219 (1)
-/* SPI Slave Boot Mode Modifies Registers from Reset Value */
-#define ANOMALY_05000229 (1)
-/* PPI_FS3 Is Not Driven in 2 or 3 Internal Frame Sync Transmit Modes */
-#define ANOMALY_05000233 (1)
-/* False Hardware Error from an Access in the Shadow of a Conditional Branch */
-#define ANOMALY_05000245 (1)
-/* Maximum External Clock Speed for Timers */
-#define ANOMALY_05000253 (1)
-/* High I/O Activity Causes Output Voltage of Internal Voltage Regulator (Vddint) to Decrease */
-#define ANOMALY_05000270 (__SILICON_REVISION__ < 4)
-/* Certain Data Cache Writethrough Modes Fail for Vddint <= 0.9V */
-#define ANOMALY_05000272 (ANOMALY_BF538)
-/* Writes to Synchronous SDRAM Memory May Be Lost */
-#define ANOMALY_05000273 (__SILICON_REVISION__ < 4)
-/* Writes to an I/O Data Register One SCLK Cycle after an Edge Is Detected May Clear Interrupt */
-#define ANOMALY_05000277 (__SILICON_REVISION__ < 4)
-/* Disabling Peripherals with DMA Running May Cause DMA System Instability */
-#define ANOMALY_05000278 (__SILICON_REVISION__ < 4)
-/* False Hardware Error when ISR Context Is Not Restored */
-#define ANOMALY_05000281 (__SILICON_REVISION__ < 4)
-/* Memory DMA Corruption with 32-Bit Data and Traffic Control */
-#define ANOMALY_05000282 (__SILICON_REVISION__ < 4)
-/* System MMR Write Is Stalled Indefinitely when Killed in a Particular Stage */
-#define ANOMALY_05000283 (__SILICON_REVISION__ < 4)
-/* SPORTs May Receive Bad Data If FIFOs Fill Up */
-#define ANOMALY_05000288 (__SILICON_REVISION__ < 4)
-/* Reads from CAN Mailbox and Acceptance Mask Area Can Fail */
-#define ANOMALY_05000291 (__SILICON_REVISION__ < 4)
-/* Hibernate Leakage Current Is Higher Than Specified */
-#define ANOMALY_05000293 (__SILICON_REVISION__ < 4)
-/* Timer Pin Limitations for PPI TX Modes with External Frame Syncs */
-#define ANOMALY_05000294 (1)
-/* Memory-To-Memory DMA Source/Destination Descriptors Must Be in Same Memory Space */
-#define ANOMALY_05000301 (__SILICON_REVISION__ < 4)
-/* SSYNCs After Writes To CAN/DMA MMR Registers Are Not Always Handled Correctly */
-#define ANOMALY_05000304 (__SILICON_REVISION__ < 4)
-/* SCKELOW Bit Does Not Maintain State Through Hibernate */
-#define ANOMALY_05000307 (__SILICON_REVISION__ < 4)
-/* False Hardware Errors Caused by Fetches at the Boundary of Reserved Memory */
-#define ANOMALY_05000310 (1)
-/* Errors when SSYNC, CSYNC, or Loads to LT, LB and LC Registers Are Interrupted */
-#define ANOMALY_05000312 (__SILICON_REVISION__ < 5)
-/* PPI Is Level-Sensitive on First Transfer In Single Frame Sync Modes */
-#define ANOMALY_05000313 (__SILICON_REVISION__ < 4)
-/* Killed System MMR Write Completes Erroneously on Next System MMR Access */
-#define ANOMALY_05000315 (__SILICON_REVISION__ < 4)
-/* PFx Glitch on Write to PORTFIO or PORTFIO_TOGGLE */
-#define ANOMALY_05000317 (__SILICON_REVISION__ < 4)	/* XXX: Same as 05000318 */
-/* PFx Glitch on Write to FIO_FLAG_D or FIO_FLAG_T */
-#define ANOMALY_05000318 (__SILICON_REVISION__ < 4)	/* XXX: Same as 05000317 */
-/* Regulator Programming Blocked when Hibernate Wakeup Source Remains Active */
-#define ANOMALY_05000355 (__SILICON_REVISION__ < 5)
-/* Serial Port (SPORT) Multichannel Transmit Failure when Channel 0 Is Disabled */
-#define ANOMALY_05000357 (__SILICON_REVISION__ < 5)
-/* PPI Underflow Error Goes Undetected in ITU-R 656 Mode */
-#define ANOMALY_05000366 (1)
-/* Possible RETS Register Corruption when Subroutine Is under 5 Cycles in Duration */
-#define ANOMALY_05000371 (__SILICON_REVISION__ < 5)
-/* Entering Hibernate State with Peripheral Wakeups Enabled Draws Excess Current */
-#define ANOMALY_05000374 (__SILICON_REVISION__ == 4)
-/* GPIO Pins PC1 and PC4 Can Function as Normal Outputs */
-#define ANOMALY_05000375 (__SILICON_REVISION__ < 4)
-/* SSYNC Stalls Processor when Executed from Non-Cacheable Memory */
-#define ANOMALY_05000402 (__SILICON_REVISION__ == 3)
-/* Level-Sensitive External GPIO Wakeups May Cause Indefinite Stall */
-#define ANOMALY_05000403 (1)
-/* Speculative Fetches Can Cause Undesired External FIFO Operations */
-#define ANOMALY_05000416 (1)
-/* Multichannel SPORT Channel Misalignment Under Specific Configuration */
-#define ANOMALY_05000425 (1)
-/* Speculative Fetches of Indirect-Pointer Instructions Can Cause False Hardware Errors */
-#define ANOMALY_05000426 (1)
-/* Specific GPIO Pins May Change State when Entering Hibernate */
-#define ANOMALY_05000436 (__SILICON_REVISION__ > 3)
-/* IFLUSH Instruction at End of Hardware Loop Causes Infinite Stall */
-#define ANOMALY_05000443 (1)
-/* False Hardware Error when RETI Points to Invalid Memory */
-#define ANOMALY_05000461 (1)
-/* Synchronization Problem at Startup May Cause SPORT Transmit Channels to Misalign */
-#define ANOMALY_05000462 (1)
-/* Interrupted SPORT Receive Data Register Read Results In Underflow when SLEN > 15 */
-#define ANOMALY_05000473 (1)
-/* Possible Lockup Condition when Modifying PLL from External Memory */
-#define ANOMALY_05000475 (1)
-/* TESTSET Instruction Cannot Be Interrupted */
-#define ANOMALY_05000477 (1)
-/* Reads of ITEST_COMMAND and ITEST_DATA Registers Cause Cache Corruption */
-#define ANOMALY_05000481 (1)
-/* PLL May Latch Incorrect Values Coming Out of Reset */
-#define ANOMALY_05000489 (1)
-/* Instruction Memory Stalls Can Cause IFLUSH to Fail */
-#define ANOMALY_05000491 (1)
-/* EXCPT Instruction May Be Lost If NMI Happens Simultaneously */
-#define ANOMALY_05000494 (1)
-/* RXS Bit in SPI_STAT May Become Stuck In RX DMA Modes */
-#define ANOMALY_05000501 (1)
-
-/*
- * These anomalies have been "phased" out of analog.com anomaly sheets and are
- * here to show running on older silicon just isn't feasible.
- */
-
-/* If I-Cache Is On, CSYNC/SSYNC/IDLE Around Change of Control Causes Failures */
-#define ANOMALY_05000244 (__SILICON_REVISION__ < 3)
-/* DCPLB_FAULT_ADDR MMR Register May Be Corrupted */
-#define ANOMALY_05000261 (__SILICON_REVISION__ < 3)
-
-/* Anomalies that don't exist on this proc */
-#define ANOMALY_05000099 (0)
-#define ANOMALY_05000120 (0)
-#define ANOMALY_05000125 (0)
-#define ANOMALY_05000149 (0)
-#define ANOMALY_05000158 (0)
-#define ANOMALY_05000171 (0)
-#define ANOMALY_05000182 (0)
-#define ANOMALY_05000189 (0)
-#define ANOMALY_05000198 (0)
-#define ANOMALY_05000202 (0)
-#define ANOMALY_05000215 (0)
-#define ANOMALY_05000220 (0)
-#define ANOMALY_05000227 (0)
-#define ANOMALY_05000230 (0)
-#define ANOMALY_05000231 (0)
-#define ANOMALY_05000234 (0)
-#define ANOMALY_05000242 (0)
-#define ANOMALY_05000248 (0)
-#define ANOMALY_05000250 (0)
-#define ANOMALY_05000254 (0)
-#define ANOMALY_05000257 (0)
-#define ANOMALY_05000263 (0)
-#define ANOMALY_05000266 (0)
-#define ANOMALY_05000274 (0)
-#define ANOMALY_05000287 (0)
-#define ANOMALY_05000305 (0)
-#define ANOMALY_05000311 (0)
-#define ANOMALY_05000323 (0)
-#define ANOMALY_05000353 (1)
-#define ANOMALY_05000362 (1)
-#define ANOMALY_05000363 (0)
-#define ANOMALY_05000364 (0)
-#define ANOMALY_05000380 (0)
-#define ANOMALY_05000383 (0)
-#define ANOMALY_05000386 (1)
-#define ANOMALY_05000389 (0)
-#define ANOMALY_05000400 (0)
-#define ANOMALY_05000412 (0)
-#define ANOMALY_05000430 (0)
-#define ANOMALY_05000432 (0)
-#define ANOMALY_05000435 (0)
-#define ANOMALY_05000440 (0)
-#define ANOMALY_05000447 (0)
-#define ANOMALY_05000448 (0)
-#define ANOMALY_05000456 (0)
-#define ANOMALY_05000450 (0)
-#define ANOMALY_05000465 (0)
-#define ANOMALY_05000467 (0)
-#define ANOMALY_05000474 (0)
-#define ANOMALY_05000480 (0)
-#define ANOMALY_05000485 (0)
-#define ANOMALY_16000030 (0)
-
-#endif