sf: Remove unneeded flash drivers files

Now the common probing is handled in spi_flash_probe.c
hence removed the unneeded flash drivers.

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>

1 files changed, 0 insertions, 544 deletions

diff --git a/drivers/mtd/spi/atmel.c b/drivers/mtd/spi/atmel.c
deleted file mode 100644
index f34df43f5..000000000
--- a/drivers/mtd/spi/atmel.c
+++ /dev/null
@@ -1,544 +0,0 @@
-/*
- * Atmel SPI DataFlash support
- *
- * Copyright (C) 2008 Atmel Corporation
- * Licensed under the GPL-2 or later.
- */
-
-#include <common.h>
-#include <malloc.h>
-#include <spi_flash.h>
-
-#include "spi_flash_internal.h"
-
-/* AT45-specific commands */
-#define CMD_AT45_READ_STATUS		0xd7
-#define CMD_AT45_ERASE_PAGE		0x81
-#define CMD_AT45_LOAD_PROG_BUF1		0x82
-#define CMD_AT45_LOAD_BUF1		0x84
-#define CMD_AT45_LOAD_PROG_BUF2		0x85
-#define CMD_AT45_LOAD_BUF2		0x87
-#define CMD_AT45_PROG_BUF1		0x88
-#define CMD_AT45_PROG_BUF2		0x89
-
-/* AT45 status register bits */
-#define AT45_STATUS_P2_PAGE_SIZE	(1 << 0)
-#define AT45_STATUS_READY		(1 << 7)
-
-/* DataFlash family IDs, as obtained from the second idcode byte */
-#define DF_FAMILY_AT26F			0
-#define DF_FAMILY_AT45			1
-#define DF_FAMILY_AT26DF		2	/* AT25DF and AT26DF */
-
-struct atmel_spi_flash_params {
-	u8		idcode1;
-	/* Log2 of page size in power-of-two mode */
-	u8		l2_page_size;
-	u8		pages_per_block;
-	u8		blocks_per_sector;
-	u8		nr_sectors;
-	const char	*name;
-};
-
-/* spi_flash needs to be first so upper layers can free() it */
-struct atmel_spi_flash {
-	struct spi_flash flash;
-	const struct atmel_spi_flash_params *params;
-};
-
-static inline struct atmel_spi_flash *
-to_atmel_spi_flash(struct spi_flash *flash)
-{
-	return container_of(flash, struct atmel_spi_flash, flash);
-}
-
-static const struct atmel_spi_flash_params atmel_spi_flash_table[] = {
-	{
-		.idcode1		= 0x22,
-		.l2_page_size		= 8,
-		.pages_per_block	= 8,
-		.blocks_per_sector	= 16,
-		.nr_sectors		= 4,
-		.name			= "AT45DB011D",
-	},
-	{
-		.idcode1		= 0x23,
-		.l2_page_size		= 8,
-		.pages_per_block	= 8,
-		.blocks_per_sector	= 16,
-		.nr_sectors		= 8,
-		.name			= "AT45DB021D",
-	},
-	{
-		.idcode1		= 0x24,
-		.l2_page_size		= 8,
-		.pages_per_block	= 8,
-		.blocks_per_sector	= 32,
-		.nr_sectors		= 8,
-		.name			= "AT45DB041D",
-	},
-	{
-		.idcode1		= 0x25,
-		.l2_page_size		= 8,
-		.pages_per_block	= 8,
-		.blocks_per_sector	= 32,
-		.nr_sectors		= 16,
-		.name			= "AT45DB081D",
-	},
-	{
-		.idcode1		= 0x26,
-		.l2_page_size		= 9,
-		.pages_per_block	= 8,
-		.blocks_per_sector	= 32,
-		.nr_sectors		= 16,
-		.name			= "AT45DB161D",
-	},
-	{
-		.idcode1		= 0x27,
-		.l2_page_size		= 9,
-		.pages_per_block	= 8,
-		.blocks_per_sector	= 64,
-		.nr_sectors		= 64,
-		.name			= "AT45DB321D",
-	},
-	{
-		.idcode1		= 0x28,
-		.l2_page_size		= 10,
-		.pages_per_block	= 8,
-		.blocks_per_sector	= 32,
-		.nr_sectors		= 32,
-		.name			= "AT45DB642D",
-	},
-	{
-		.idcode1		= 0x47,
-		.l2_page_size		= 8,
-		.pages_per_block	= 16,
-		.blocks_per_sector	= 16,
-		.nr_sectors		= 64,
-		.name			= "AT25DF321",
-	},
-};
-
-static int at45_wait_ready(struct spi_flash *flash, unsigned long timeout)
-{
-	struct spi_slave *spi = flash->spi;
-	unsigned long timebase;
-	int ret;
-	u8 cmd = CMD_AT45_READ_STATUS;
-	u8 status;
-
-	timebase = get_timer(0);
-
-	ret = spi_xfer(spi, 8, &cmd, NULL, SPI_XFER_BEGIN);
-	if (ret)
-		return -1;
-
-	do {
-		ret = spi_xfer(spi, 8, NULL, &status, 0);
-		if (ret)
-			return -1;
-
-		if (status & AT45_STATUS_READY)
-			break;
-	} while (get_timer(timebase) < timeout);
-
-	/* Deactivate CS */
-	spi_xfer(spi, 0, NULL, NULL, SPI_XFER_END);
-
-	if (status & AT45_STATUS_READY)
-		return 0;
-
-	/* Timed out */
-	return -1;
-}
-
-/*
- * Assemble the address part of a command for AT45 devices in
- * non-power-of-two page size mode.
- */
-static void at45_build_address(struct atmel_spi_flash *asf, u8 *cmd, u32 offset)
-{
-	unsigned long page_addr;
-	unsigned long byte_addr;
-	unsigned long page_size;
-	unsigned int page_shift;
-
-	/*
-	 * The "extra" space per page is the power-of-two page size
-	 * divided by 32.
-	 */
-	page_shift = asf->params->l2_page_size;
-	page_size = (1 << page_shift) + (1 << (page_shift - 5));
-	page_shift++;
-	page_addr = offset / page_size;
-	byte_addr = offset % page_size;
-
-	cmd[0] = page_addr >> (16 - page_shift);
-	cmd[1] = page_addr << (page_shift - 8) | (byte_addr >> 8);
-	cmd[2] = byte_addr;
-}
-
-static int dataflash_read_fast_at45(struct spi_flash *flash,
-		u32 offset, size_t len, void *buf)
-{
-	struct atmel_spi_flash *asf = to_atmel_spi_flash(flash);
-	u8 cmd[5];
-
-	cmd[0] = CMD_READ_ARRAY_FAST;
-	at45_build_address(asf, cmd + 1, offset);
-	cmd[4] = 0x00;
-
-	return spi_flash_read_common(flash, cmd, sizeof(cmd), buf, len);
-}
-
-/*
- * TODO: the two write funcs (_p2/_at45) should get unified ...
- */
-static int dataflash_write_p2(struct spi_flash *flash,
-		u32 offset, size_t len, const void *buf)
-{
-	struct atmel_spi_flash *asf = to_atmel_spi_flash(flash);
-	unsigned long page_size;
-	u32 addr = offset;
-	size_t chunk_len;
-	size_t actual;
-	int ret;
-	u8 cmd[4];
-
-	/*
-	 * TODO: This function currently uses only page buffer #1.  We can
-	 * speed this up by using both buffers and loading one buffer while
-	 * the other is being programmed into main memory.
-	 */
-
-	page_size = (1 << asf->params->l2_page_size);
-
-	ret = spi_claim_bus(flash->spi);
-	if (ret) {
-		debug("SF: Unable to claim SPI bus\n");
-		return ret;
-	}
-
-	for (actual = 0; actual < len; actual += chunk_len) {
-		chunk_len = min(len - actual, page_size - (addr % page_size));
-
-		/* Use the same address bits for both commands */
-		cmd[0] = CMD_AT45_LOAD_BUF1;
-		cmd[1] = addr >> 16;
-		cmd[2] = addr >> 8;
-		cmd[3] = addr;
-
-		ret = spi_flash_cmd_write(flash->spi, cmd, 4,
-				buf + actual, chunk_len);
-		if (ret < 0) {
-			debug("SF: Loading AT45 buffer failed\n");
-			goto out;
-		}
-
-		cmd[0] = CMD_AT45_PROG_BUF1;
-		ret = spi_flash_cmd_write(flash->spi, cmd, 4, NULL, 0);
-		if (ret < 0) {
-			debug("SF: AT45 page programming failed\n");
-			goto out;
-		}
-
-		ret = at45_wait_ready(flash, SPI_FLASH_PROG_TIMEOUT);
-		if (ret < 0) {
-			debug("SF: AT45 page programming timed out\n");
-			goto out;
-		}
-
-		addr += chunk_len;
-	}
-
-	debug("SF: AT45: Successfully programmed %zu bytes @ 0x%x\n",
-	      len, offset);
-	ret = 0;
-
-out:
-	spi_release_bus(flash->spi);
-	return ret;
-}
-
-static int dataflash_write_at45(struct spi_flash *flash,
-		u32 offset, size_t len, const void *buf)
-{
-	struct atmel_spi_flash *asf = to_atmel_spi_flash(flash);
-	unsigned long page_addr;
-	unsigned long byte_addr;
-	unsigned long page_size;
-	unsigned int page_shift;
-	size_t chunk_len;
-	size_t actual;
-	int ret;
-	u8 cmd[4];
-
-	/*
-	 * TODO: This function currently uses only page buffer #1.  We can
-	 * speed this up by using both buffers and loading one buffer while
-	 * the other is being programmed into main memory.
-	 */
-
-	page_shift = asf->params->l2_page_size;
-	page_size = (1 << page_shift) + (1 << (page_shift - 5));
-	page_shift++;
-	page_addr = offset / page_size;
-	byte_addr = offset % page_size;
-
-	ret = spi_claim_bus(flash->spi);
-	if (ret) {
-		debug("SF: Unable to claim SPI bus\n");
-		return ret;
-	}
-
-	for (actual = 0; actual < len; actual += chunk_len) {
-		chunk_len = min(len - actual, page_size - byte_addr);
-
-		/* Use the same address bits for both commands */
-		cmd[0] = CMD_AT45_LOAD_BUF1;
-		cmd[1] = page_addr >> (16 - page_shift);
-		cmd[2] = page_addr << (page_shift - 8) | (byte_addr >> 8);
-		cmd[3] = byte_addr;
-
-		ret = spi_flash_cmd_write(flash->spi, cmd, 4,
-				buf + actual, chunk_len);
-		if (ret < 0) {
-			debug("SF: Loading AT45 buffer failed\n");
-			goto out;
-		}
-
-		cmd[0] = CMD_AT45_PROG_BUF1;
-		ret = spi_flash_cmd_write(flash->spi, cmd, 4, NULL, 0);
-		if (ret < 0) {
-			debug("SF: AT45 page programming failed\n");
-			goto out;
-		}
-
-		ret = at45_wait_ready(flash, SPI_FLASH_PROG_TIMEOUT);
-		if (ret < 0) {
-			debug("SF: AT45 page programming timed out\n");
-			goto out;
-		}
-
-		page_addr++;
-		byte_addr = 0;
-	}
-
-	debug("SF: AT45: Successfully programmed %zu bytes @ 0x%x\n",
-	      len, offset);
-	ret = 0;
-
-out:
-	spi_release_bus(flash->spi);
-	return ret;
-}
-
-/*
- * TODO: the two erase funcs (_p2/_at45) should get unified ...
- */
-static int dataflash_erase_p2(struct spi_flash *flash, u32 offset, size_t len)
-{
-	struct atmel_spi_flash *asf = to_atmel_spi_flash(flash);
-	unsigned long page_size;
-
-	size_t actual;
-	int ret;
-	u8 cmd[4];
-
-	/*
-	 * TODO: This function currently uses page erase only. We can
-	 * probably speed things up by using block and/or sector erase
-	 * when possible.
-	 */
-
-	page_size = (1 << asf->params->l2_page_size);
-
-	if (offset % page_size || len % page_size) {
-		debug("SF: Erase offset/length not multiple of page size\n");
-		return -1;
-	}
-
-	cmd[0] = CMD_AT45_ERASE_PAGE;
-	cmd[3] = 0x00;
-
-	ret = spi_claim_bus(flash->spi);
-	if (ret) {
-		debug("SF: Unable to claim SPI bus\n");
-		return ret;
-	}
-
-	for (actual = 0; actual < len; actual += page_size) {
-		cmd[1] = offset >> 16;
-		cmd[2] = offset >> 8;
-
-		ret = spi_flash_cmd_write(flash->spi, cmd, 4, NULL, 0);
-		if (ret < 0) {
-			debug("SF: AT45 page erase failed\n");
-			goto out;
-		}
-
-		ret = at45_wait_ready(flash, SPI_FLASH_PAGE_ERASE_TIMEOUT);
-		if (ret < 0) {
-			debug("SF: AT45 page erase timed out\n");
-			goto out;
-		}
-
-		offset += page_size;
-	}
-
-	debug("SF: AT45: Successfully erased %zu bytes @ 0x%x\n",
-	      len, offset);
-	ret = 0;
-
-out:
-	spi_release_bus(flash->spi);
-	return ret;
-}
-
-static int dataflash_erase_at45(struct spi_flash *flash, u32 offset, size_t len)
-{
-	struct atmel_spi_flash *asf = to_atmel_spi_flash(flash);
-	unsigned long page_addr;
-	unsigned long page_size;
-	unsigned int page_shift;
-	size_t actual;
-	int ret;
-	u8 cmd[4];
-
-	/*
-	 * TODO: This function currently uses page erase only. We can
-	 * probably speed things up by using block and/or sector erase
-	 * when possible.
-	 */
-
-	page_shift = asf->params->l2_page_size;
-	page_size = (1 << page_shift) + (1 << (page_shift - 5));
-	page_shift++;
-	page_addr = offset / page_size;
-
-	if (offset % page_size || len % page_size) {
-		debug("SF: Erase offset/length not multiple of page size\n");
-		return -1;
-	}
-
-	cmd[0] = CMD_AT45_ERASE_PAGE;
-	cmd[3] = 0x00;
-
-	ret = spi_claim_bus(flash->spi);
-	if (ret) {
-		debug("SF: Unable to claim SPI bus\n");
-		return ret;
-	}
-
-	for (actual = 0; actual < len; actual += page_size) {
-		cmd[1] = page_addr >> (16 - page_shift);
-		cmd[2] = page_addr << (page_shift - 8);
-
-		ret = spi_flash_cmd_write(flash->spi, cmd, 4, NULL, 0);
-		if (ret < 0) {
-			debug("SF: AT45 page erase failed\n");
-			goto out;
-		}
-
-		ret = at45_wait_ready(flash, SPI_FLASH_PAGE_ERASE_TIMEOUT);
-		if (ret < 0) {
-			debug("SF: AT45 page erase timed out\n");
-			goto out;
-		}
-
-		page_addr++;
-	}
-
-	debug("SF: AT45: Successfully erased %zu bytes @ 0x%x\n",
-	      len, offset);
-	ret = 0;
-
-out:
-	spi_release_bus(flash->spi);
-	return ret;
-}
-
-struct spi_flash *spi_flash_probe_atmel(struct spi_slave *spi, u8 *idcode)
-{
-	const struct atmel_spi_flash_params *params;
-	unsigned page_size;
-	unsigned int family;
-	struct atmel_spi_flash *asf;
-	unsigned int i;
-	int ret;
-	u8 status;
-
-	for (i = 0; i < ARRAY_SIZE(atmel_spi_flash_table); i++) {
-		params = &atmel_spi_flash_table[i];
-		if (params->idcode1 == idcode[1])
-			break;
-	}
-
-	if (i == ARRAY_SIZE(atmel_spi_flash_table)) {
-		debug("SF: Unsupported DataFlash ID %02x\n",
-		      idcode[1]);
-		return NULL;
-	}
-
-	asf = spi_flash_alloc(struct atmel_spi_flash, spi, params->name);
-	if (!asf) {
-		debug("SF: Failed to allocate memory\n");
-		return NULL;
-	}
-
-	asf->params = params;
-
-	/* Assuming power-of-two page size initially. */
-	page_size = 1 << params->l2_page_size;
-
-	family = idcode[1] >> 5;
-
-	switch (family) {
-	case DF_FAMILY_AT45:
-		/*
-		 * AT45 chips have configurable page size. The status
-		 * register indicates which configuration is active.
-		 */
-		ret = spi_flash_cmd(spi, CMD_AT45_READ_STATUS, &status, 1);
-		if (ret)
-			goto err;
-
-		debug("SF: AT45 status register: %02x\n", status);
-
-		if (!(status & AT45_STATUS_P2_PAGE_SIZE)) {
-			asf->flash.read = dataflash_read_fast_at45;
-			asf->flash.write = dataflash_write_at45;
-			asf->flash.erase = dataflash_erase_at45;
-			page_size += 1 << (params->l2_page_size - 5);
-		} else {
-			asf->flash.write = dataflash_write_p2;
-			asf->flash.erase = dataflash_erase_p2;
-		}
-
-		asf->flash.page_size = page_size;
-		asf->flash.sector_size = page_size;
-		break;
-
-	case DF_FAMILY_AT26F:
-	case DF_FAMILY_AT26DF:
-		asf->flash.page_size = page_size;
-		asf->flash.sector_size = 4096;
-		/* clear SPRL# bit for locked flash */
-		spi_flash_cmd_write_status(&asf->flash, 0);
-		break;
-
-	default:
-		debug("SF: Unsupported DataFlash family %u\n", family);
-		goto err;
-	}
-
-	asf->flash.size = page_size * params->pages_per_block
-				* params->blocks_per_sector
-				* params->nr_sectors;
-
-	return &asf->flash;
-
-err:
-	free(asf);
-	return NULL;
-}