Blackfin: Remove

The architecture is currently unmaintained, remove.

Cc: Benjamin Matthews <mben12@gmail.com>
Cc: Chong Huang <chuang@ucrobotics.com>
Cc: Dimitar Penev <dpn@switchfin.org>
Cc: Haitao Zhang <hzhang@ucrobotics.com>
Cc: I-SYST Micromodule <support@i-syst.com>
Cc: M.Hasewinkel (MHA) <info@ssv-embedded.de>
Cc: Marek Vasut <marex@denx.de>
Cc: Martin Strubel <strubel@section5.ch>
Cc: Peter Meerwald <devel@bct-electronic.com>
Cc: Sonic Zhang <sonic.adi@gmail.com>
Cc: Valentin Yakovenkov <yakovenkov@niistt.ru>
Cc: Wojtek Skulski <info@skutek.com>
Cc: Wojtek Skulski <skulski@pas.rochester.edu>
Signed-off-by: Tom Rini <trini@konsulko.com>

1 files changed, 0 insertions, 268 deletions

diff --git a/arch/blackfin/lib/string.c b/arch/blackfin/lib/string.c
deleted file mode 100644
index c904a88916..0000000000
--- a/arch/blackfin/lib/string.c
+++ /dev/null
@@ -1,268 +0,0 @@
-/*
- * U-Boot - string.c Contains library routines.
- *
- * Copyright (c) 2005-2008 Analog Devices Inc.
- *
- * (C) Copyright 2000-2004
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-#include <common.h>
-#include <config.h>
-#include <asm/blackfin.h>
-#include <asm/io.h>
-#include <asm/dma.h>
-
-char *strcpy(char *dest, const char *src)
-{
-	char *xdest = dest;
-	char temp = 0;
-
-	__asm__ __volatile__ (
-		"1:\t%2 = B [%1++] (Z);\n\t"
-		"B [%0++] = %2;\n\t"
-		"CC = %2;\n\t"
-		"if cc jump 1b (bp);\n"
-		: "=a"(dest), "=a"(src), "=d"(temp)
-		: "0"(dest), "1"(src), "2"(temp)
-		: "memory");
-
-	return xdest;
-}
-
-char *strncpy(char *dest, const char *src, size_t n)
-{
-	char *xdest = dest;
-	char temp = 0;
-
-	if (n == 0)
-		return xdest;
-
-	__asm__ __volatile__ (
-		"1:\t%3 = B [%1++] (Z);\n\t"
-		"B [%0++] = %3;\n\t"
-		"CC = %3;\n\t"
-		"if ! cc jump 2f;\n\t"
-		"%2 += -1;\n\t"
-		"CC = %2 == 0;\n\t"
-		"if ! cc jump 1b (bp);\n"
-		"2:\n"
-		: "=a"(dest), "=a"(src), "=da"(n), "=d"(temp)
-		: "0"(dest), "1"(src), "2"(n), "3"(temp)
-		: "memory");
-
-	return xdest;
-}
-
-int strcmp(const char *cs, const char *ct)
-{
-	char __res1, __res2;
-
-	__asm__ (
-		"1:\t%2 = B[%0++] (Z);\n\t"	/* get *cs */
-		"%3 = B[%1++] (Z);\n\t"	/* get *ct */
-		"CC = %2 == %3;\n\t"	/* compare a byte */
-		"if ! cc jump 2f;\n\t"	/* not equal, break out */
-		"CC = %2;\n\t"	/* at end of cs? */
-		"if cc jump 1b (bp);\n\t"	/* no, keep going */
-		"jump.s 3f;\n"	/* strings are equal */
-		"2:\t%2 = %2 - %3;\n"	/* *cs - *ct */
-		"3:\n"
-		: "=a"(cs), "=a"(ct), "=d"(__res1), "=d"(__res2)
-		: "0"(cs), "1"(ct));
-
-	return __res1;
-}
-
-int strncmp(const char *cs, const char *ct, size_t count)
-{
-	char __res1, __res2;
-
-	if (!count)
-		return 0;
-
-	__asm__(
-		"1:\t%3 = B[%0++] (Z);\n\t"	/* get *cs */
-		"%4 = B[%1++] (Z);\n\t"	/* get *ct */
-		"CC = %3 == %4;\n\t"	/* compare a byte */
-		"if ! cc jump 3f;\n\t"	/* not equal, break out */
-		"CC = %3;\n\t"	/* at end of cs? */
-		"if ! cc jump 4f;\n\t"	/* yes, all done */
-		"%2 += -1;\n\t"	/* no, adjust count */
-		"CC = %2 == 0;\n\t" "if ! cc jump 1b;\n"	/* more to do, keep going */
-		"2:\t%3 = 0;\n\t"	/* strings are equal */
-		"jump.s    4f;\n" "3:\t%3 = %3 - %4;\n"	/* *cs - *ct */
-		"4:"
-		: "=a"(cs), "=a"(ct), "=da"(count), "=d"(__res1), "=d"(__res2)
-		: "0"(cs), "1"(ct), "2"(count));
-
-	return __res1;
-}
-
-#ifdef MDMA1_D0_NEXT_DESC_PTR
-# define MDMA_D0_NEXT_DESC_PTR MDMA1_D0_NEXT_DESC_PTR
-# define MDMA_S0_NEXT_DESC_PTR MDMA1_S0_NEXT_DESC_PTR
-#endif
-
-static void dma_calc_size(unsigned long ldst, unsigned long lsrc, size_t count,
-			unsigned long *dshift, unsigned long *bpos)
-{
-	unsigned long limit;
-
-#ifdef MSIZE
-	/* The max memory DMA memory transfer size is 32 bytes. */
-	limit = 5;
-	*dshift = MSIZE_P;
-#else
-	/* The max memory DMA memory transfer size is 4 bytes. */
-	limit = 2;
-	*dshift = WDSIZE_P;
-#endif
-
-	*bpos = min(limit, (unsigned long)ffs(ldst | lsrc | count)) - 1;
-}
-
-/* This version misbehaves for count values of 0 and 2^16+.
- * Perhaps we should detect that ?  Nowhere do we actually
- * use dma memcpy for those types of lengths though ...
- */
-void dma_memcpy_nocache(void *dst, const void *src, size_t count)
-{
-	struct dma_register *mdma_d0 = (void *)MDMA_D0_NEXT_DESC_PTR;
-	struct dma_register *mdma_s0 = (void *)MDMA_S0_NEXT_DESC_PTR;
-	unsigned long ldst = (unsigned long)dst;
-	unsigned long lsrc = (unsigned long)src;
-	unsigned long dshift, bpos;
-	uint32_t dsize, mod;
-
-	/* Disable DMA in case it's still running (older u-boot's did not
-	 * always turn them off).  Do it before the if statement below so
-	 * we can be cheap and not do a SSYNC() due to the forced abort.
-	 */
-	bfin_write(&mdma_d0->config, 0);
-	bfin_write(&mdma_s0->config, 0);
-	bfin_write(&mdma_d0->status, DMA_RUN | DMA_DONE | DMA_ERR);
-
-	/* Scratchpad cannot be a DMA source or destination */
-	if ((lsrc >= L1_SRAM_SCRATCH && lsrc < L1_SRAM_SCRATCH_END) ||
-	    (ldst >= L1_SRAM_SCRATCH && ldst < L1_SRAM_SCRATCH_END))
-		hang();
-
-	dma_calc_size(ldst, lsrc, count, &dshift, &bpos);
-	dsize = bpos << dshift;
-	count >>= bpos;
-	mod = 1 << bpos;
-
-#ifdef PSIZE
-	/* The max memory DMA peripheral transfer size is 4 bytes. */
-	dsize |= min(2UL, bpos) << PSIZE_P;
-#endif
-
-	/* Copy sram functions from sdram to sram */
-	/* Setup destination start address */
-	bfin_write(&mdma_d0->start_addr, ldst);
-	/* Setup destination xcount */
-	bfin_write(&mdma_d0->x_count, count);
-	/* Setup destination xmodify */
-	bfin_write(&mdma_d0->x_modify, mod);
-
-	/* Setup Source start address */
-	bfin_write(&mdma_s0->start_addr, lsrc);
-	/* Setup Source xcount */
-	bfin_write(&mdma_s0->x_count, count);
-	/* Setup Source xmodify */
-	bfin_write(&mdma_s0->x_modify, mod);
-
-	/* Enable source DMA */
-	bfin_write(&mdma_s0->config, dsize | DMAEN);
-	bfin_write(&mdma_d0->config, dsize | DMAEN | WNR | DI_EN);
-	SSYNC();
-
-	while (!(bfin_read(&mdma_d0->status) & DMA_DONE))
-		continue;
-
-	bfin_write(&mdma_d0->status, DMA_RUN | DMA_DONE | DMA_ERR);
-	bfin_write(&mdma_d0->config, 0);
-	bfin_write(&mdma_s0->config, 0);
-}
-/* We should do a dcache invalidate on the destination after the dma, but since
- * we lack such hardware capability, we'll flush/invalidate the destination
- * before the dma and bank on the idea that u-boot is single threaded.
- */
-void *dma_memcpy(void *dst, const void *src, size_t count)
-{
-	if (dcache_status()) {
-		blackfin_dcache_flush_range(src, src + count);
-		blackfin_dcache_flush_invalidate_range(dst, dst + count);
-	}
-
-	dma_memcpy_nocache(dst, src, count);
-
-	if (icache_status())
-		blackfin_icache_flush_range(dst, dst + count);
-
-	return dst;
-}
-
-/*
- * memcpy - Copy one area of memory to another
- * @dest: Where to copy to
- * @src: Where to copy from
- * @count: The size of the area.
- *
- * We need to have this wrapper in memcpy() as common code may call memcpy()
- * to load up L1 regions.  Consider loading an ELF which has sections with
- * LMA's pointing to L1.  The common code ELF loader will simply use memcpy()
- * to move the ELF's sections into the right place.  We need to catch that
- * here and redirect to dma_memcpy().
- */
-extern void *memcpy_ASM(void *dst, const void *src, size_t count);
-void *memcpy(void *dst, const void *src, size_t count)
-{
-	if (!count)
-		return dst;
-
-#ifdef CONFIG_CMD_KGDB
-	if (src >= (void *)SYSMMR_BASE) {
-		if (count == 2 && (unsigned long)src % 2 == 0) {
-			u16 mmr = bfin_read16(src);
-			memcpy(dst, &mmr, sizeof(mmr));
-			return dst;
-		}
-		if (count == 4 && (unsigned long)src % 4 == 0) {
-			u32 mmr = bfin_read32(src);
-			memcpy(dst, &mmr, sizeof(mmr));
-			return dst;
-		}
-		/* Failed for some reason */
-		memset(dst, 0xad, count);
-		return dst;
-	}
-	if (dst >= (void *)SYSMMR_BASE) {
-		if (count == 2 && (unsigned long)dst % 2 == 0) {
-			u16 mmr;
-			memcpy(&mmr, src, sizeof(mmr));
-			bfin_write16(dst, mmr);
-			return dst;
-		}
-		if (count == 4 && (unsigned long)dst % 4 == 0) {
-			u32 mmr;
-			memcpy(&mmr, src, sizeof(mmr));
-			bfin_write32(dst, mmr);
-			return dst;
-		}
-		/* Failed for some reason */
-		memset(dst, 0xad, count);
-		return dst;
-	}
-#endif
-
-	/* if L1 is the source or dst, use DMA */
-	if (addr_bfin_on_chip_mem(dst) || addr_bfin_on_chip_mem(src))
-		return dma_memcpy(dst, src, count);
-	else
-		/* No L1 is involved, so just call regular memcpy */
-		return memcpy_ASM(dst, src, count);
-}