drivers/block : move block drivers to drivers/block

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

1 files changed, 0 insertions, 258 deletions

diff --git a/drivers/systemace.c b/drivers/systemace.c
deleted file mode 100644
index 7d82c27..0000000
--- a/drivers/systemace.c
+++ /dev/null
@@ -1,258 +0,0 @@
-/*
- * Copyright (c) 2004 Picture Elements, Inc.
- *    Stephen Williams (XXXXXXXXXXXXXXXX)
- *
- *    This source code is free software; you can redistribute it
- *    and/or modify it in source code form 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, write to the Free Software
- *    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
- */
-
-/*
- * The Xilinx SystemACE chip support is activated by defining
- * CONFIG_SYSTEMACE to turn on support, and CFG_SYSTEMACE_BASE
- * to set the base address of the device. This code currently
- * assumes that the chip is connected via a byte-wide bus.
- *
- * The CONFIG_SYSTEMACE also adds to fat support the device class
- * "ace" that allows the user to execute "fatls ace 0" and the
- * like. This works by making the systemace_get_dev function
- * available to cmd_fat.c:get_dev and filling in a block device
- * description that has all the bits needed for FAT support to
- * read sectors.
- *
- * According to Xilinx technical support, before accessing the
- * SystemACE CF you need to set the following control bits:
- *      FORCECFGMODE : 1
- *      CFGMODE : 0
- *      CFGSTART : 0
- */
-
-#include <common.h>
-#include <command.h>
-#include <systemace.h>
-#include <part.h>
-#include <asm/io.h>
-
-#ifdef CONFIG_SYSTEMACE
-
-/*
- * The ace_readw and writew functions read/write 16bit words, but the
- * offset value is the BYTE offset as most used in the Xilinx
- * datasheet for the SystemACE chip. The CFG_SYSTEMACE_BASE is defined
- * to be the base address for the chip, usually in the local
- * peripheral bus.
- */
-#if (CFG_SYSTEMACE_WIDTH == 8)
-#if !defined(__BIG_ENDIAN)
-#define ace_readw(off) ((readb(CFG_SYSTEMACE_BASE+off)<<8) | \
-			(readb(CFG_SYSTEMACE_BASE+off+1)))
-#define ace_writew(val, off) {writeb(val>>8, CFG_SYSTEMACE_BASE+off); \
-			      writeb(val, CFG_SYSTEMACE_BASE+off+1);}
-#else
-#define ace_readw(off) ((readb(CFG_SYSTEMACE_BASE+off)) | \
-			(readb(CFG_SYSTEMACE_BASE+off+1)<<8))
-#define ace_writew(val, off) {writeb(val, CFG_SYSTEMACE_BASE+off); \
-			      writeb(val>>8, CFG_SYSTEMACE_BASE+off+1);}
-#endif
-#else
-#define ace_readw(off) (in16(CFG_SYSTEMACE_BASE+off))
-#define ace_writew(val, off) (out16(CFG_SYSTEMACE_BASE+off,val))
-#endif
-
-/* */
-
-static unsigned long systemace_read(int dev, unsigned long start,
-				    unsigned long blkcnt, void *buffer);
-
-static block_dev_desc_t systemace_dev = { 0 };
-
-static int get_cf_lock(void)
-{
-	int retry = 10;
-
-	/* CONTROLREG = LOCKREG */
-	unsigned val = ace_readw(0x18);
-	val |= 0x0002;
-	ace_writew((val & 0xffff), 0x18);
-
-	/* Wait for MPULOCK in STATUSREG[15:0] */
-	while (!(ace_readw(0x04) & 0x0002)) {
-
-		if (retry < 0)
-			return -1;
-
-		udelay(100000);
-		retry -= 1;
-	}
-
-	return 0;
-}
-
-static void release_cf_lock(void)
-{
-	unsigned val = ace_readw(0x18);
-	val &= ~(0x0002);
-	ace_writew((val & 0xffff), 0x18);
-}
-
-block_dev_desc_t *systemace_get_dev(int dev)
-{
-	/* The first time through this, the systemace_dev object is
-	   not yet initialized. In that case, fill it in. */
-	if (systemace_dev.blksz == 0) {
-		systemace_dev.if_type = IF_TYPE_UNKNOWN;
-		systemace_dev.dev = 0;
-		systemace_dev.part_type = PART_TYPE_UNKNOWN;
-		systemace_dev.type = DEV_TYPE_HARDDISK;
-		systemace_dev.blksz = 512;
-		systemace_dev.removable = 1;
-		systemace_dev.block_read = systemace_read;
-
-		/*
-		 * Ensure the correct bus mode (8/16 bits) gets enabled
-		 */
-		ace_writew(CFG_SYSTEMACE_WIDTH == 8 ? 0 : 0x0001, 0);
-
-		init_part(&systemace_dev);
-
-	}
-
-	return &systemace_dev;
-}
-
-/*
- * This function is called (by dereferencing the block_read pointer in
- * the dev_desc) to read blocks of data. The return value is the
- * number of blocks read. A zero return indicates an error.
- */
-static unsigned long systemace_read(int dev, unsigned long start,
-				    unsigned long blkcnt, void *buffer)
-{
-	int retry;
-	unsigned blk_countdown;
-	unsigned char *dp = buffer;
-	unsigned val;
-
-	if (get_cf_lock() < 0) {
-		unsigned status = ace_readw(0x04);
-
-		/* If CFDETECT is false, card is missing. */
-		if (!(status & 0x0010)) {
-			printf("** CompactFlash card not present. **\n");
-			return 0;
-		}
-
-		printf("**** ACE locked away from me (STATUSREG=%04x)\n",
-		       status);
-		return 0;
-	}
-#ifdef DEBUG_SYSTEMACE
-	printf("... systemace read %lu sectors at %lu\n", blkcnt, start);
-#endif
-
-	retry = 2000;
-	for (;;) {
-		val = ace_readw(0x04);
-
-		/* If CFDETECT is false, card is missing. */
-		if (!(val & 0x0010)) {
-			printf("**** ACE CompactFlash not found.\n");
-			release_cf_lock();
-			return 0;
-		}
-
-		/* If RDYFORCMD, then we are ready to go. */
-		if (val & 0x0100)
-			break;
-
-		if (retry < 0) {
-			printf("**** SystemACE not ready.\n");
-			release_cf_lock();
-			return 0;
-		}
-
-		udelay(1000);
-		retry -= 1;
-	}
-
-	/* The SystemACE can only transfer 256 sectors at a time, so
-	   limit the current chunk of sectors. The blk_countdown
-	   variable is the number of sectors left to transfer. */
-
-	blk_countdown = blkcnt;
-	while (blk_countdown > 0) {
-		unsigned trans = blk_countdown;
-
-		if (trans > 256)
-			trans = 256;
-
-#ifdef DEBUG_SYSTEMACE
-		printf("... transfer %lu sector in a chunk\n", trans);
-#endif
-		/* Write LBA block address */
-		ace_writew((start >> 0) & 0xffff, 0x10);
-		ace_writew((start >> 16) & 0x0fff, 0x12);
-
-		/* NOTE: in the Write Sector count below, a count of 0
-		   causes a transfer of 256, so &0xff gives the right
-		   value for whatever transfer count we want. */
-
-		/* Write sector count | ReadMemCardData. */
-		ace_writew((trans & 0xff) | 0x0300, 0x14);
-
-/*
- * For FPGA configuration via SystemACE is reset unacceptable
- * CFGDONE bit in STATUSREG is not set to 1.
- */
-#ifndef SYSTEMACE_CONFIG_FPGA
-		/* Reset the configruation controller */
-		val = ace_readw(0x18);
-		val |= 0x0080;
-		ace_writew(val, 0x18);
-#endif
-
-		retry = trans * 16;
-		while (retry > 0) {
-			int idx;
-
-			/* Wait for buffer to become ready. */
-			while (!(ace_readw(0x04) & 0x0020)) {
-				udelay(100);
-			}
-
-			/* Read 16 words of 2bytes from the sector buffer. */
-			for (idx = 0; idx < 16; idx += 1) {
-				unsigned short val = ace_readw(0x40);
-				*dp++ = val & 0xff;
-				*dp++ = (val >> 8) & 0xff;
-			}
-
-			retry -= 1;
-		}
-
-		/* Clear the configruation controller reset */
-		val = ace_readw(0x18);
-		val &= ~0x0080;
-		ace_writew(val, 0x18);
-
-		/* Count the blocks we transfer this time. */
-		start += trans;
-		blk_countdown -= trans;
-	}
-
-	release_cf_lock();
-
-	return blkcnt;
-}
-#endif /* CONFIG_SYSTEMACE */