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-rw-r--r--arch/blackfin/lib/ins.S118
1 files changed, 0 insertions, 118 deletions
diff --git a/arch/blackfin/lib/ins.S b/arch/blackfin/lib/ins.S
deleted file mode 100644
index d59608deccc1..000000000000
--- a/arch/blackfin/lib/ins.S
+++ /dev/null
@@ -1,118 +0,0 @@
-/*
- * arch/blackfin/lib/ins.S - ins{bwl} using hardware loops
- *
- * Copyright 2004-2008 Analog Devices Inc.
- * Copyright (C) 2005 Bas Vermeulen, BuyWays BV <bas@buyways.nl>
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/linkage.h>
-#include <asm/blackfin.h>
-
-.align 2
-
-#ifdef CONFIG_IPIPE
-# define DO_CLI \
- [--sp] = rets; \
- [--sp] = (P5:0); \
- sp += -12; \
- call ___ipipe_disable_root_irqs_hw; \
- sp += 12; \
- (P5:0) = [sp++];
-# define CLI_INNER_NOP
-#else
-# define DO_CLI cli R3;
-# define CLI_INNER_NOP nop; nop; nop;
-#endif
-
-#ifdef CONFIG_IPIPE
-# define DO_STI \
- sp += -12; \
- call ___ipipe_enable_root_irqs_hw; \
- sp += 12; \
-2: rets = [sp++];
-#else
-# define DO_STI 2: sti R3;
-#endif
-
-#ifdef CONFIG_BFIN_INS_LOWOVERHEAD
-# define CLI_OUTER DO_CLI;
-# define STI_OUTER DO_STI;
-# define CLI_INNER 1:
-# if ANOMALY_05000416
-# define STI_INNER nop; 2: nop;
-# else
-# define STI_INNER 2:
-# endif
-#else
-# define CLI_OUTER
-# define STI_OUTER
-# define CLI_INNER 1: DO_CLI; CLI_INNER_NOP;
-# define STI_INNER DO_STI;
-#endif
-
-/*
- * Reads on the Blackfin are speculative. In Blackfin terms, this means they
- * can be interrupted at any time (even after they have been issued on to the
- * external bus), and re-issued after the interrupt occurs.
- *
- * If a FIFO is sitting on the end of the read, it will see two reads,
- * when the core only sees one. The FIFO receives the read which is cancelled,
- * and not delivered to the core.
- *
- * To solve this, interrupts are turned off before reads occur to I/O space.
- * There are 3 versions of all these functions
- * - turns interrupts off every read (higher overhead, but lower latency)
- * - turns interrupts off every loop (low overhead, but longer latency)
- * - DMA version, which do not suffer from this issue. DMA versions have
- * different name (prefixed by dma_ ), and are located in
- * ../kernel/bfin_dma.c
- * Using the dma related functions are recommended for transferring large
- * buffers in/out of FIFOs.
- */
-
-#define COMMON_INS(func, ops) \
-ENTRY(_ins##func) \
- P0 = R0; /* P0 = port */ \
- CLI_OUTER; /* 3 instructions before first read access */ \
- P1 = R1; /* P1 = address */ \
- P2 = R2; /* P2 = count */ \
- SSYNC; \
- \
- LSETUP(1f, 2f) LC0 = P2; \
- CLI_INNER; \
- ops; \
- STI_INNER; \
- \
- STI_OUTER; \
- RTS; \
-ENDPROC(_ins##func)
-
-COMMON_INS(l, \
- R0 = [P0]; \
- [P1++] = R0; \
-)
-
-COMMON_INS(w, \
- R0 = W[P0]; \
- W[P1++] = R0; \
-)
-
-COMMON_INS(w_8, \
- R0 = W[P0]; \
- B[P1++] = R0; \
- R0 = R0 >> 8; \
- B[P1++] = R0; \
-)
-
-COMMON_INS(b, \
- R0 = B[P0]; \
- B[P1++] = R0; \
-)
-
-COMMON_INS(l_16, \
- R0 = [P0]; \
- W[P1++] = R0; \
- R0 = R0 >> 16; \
- W[P1++] = R0; \
-)