fastboot: Move fastboot to drivers/fastboot

Separate CMD_FASTBOOT from FASTBOOT and move code and configuration to
drivers/fastboot.

Switch dependencies on FASTBOOT to USB_FUNCTION_FASTBOOT as anyone who wants
FASTBOOT before this series wants USB_FUNCTION_FASTBOOT. Split
USB_FUNCTION_FASTBOOT from FASTBOOT so they retain their existing
behaviour.

Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>

1 files changed, 0 insertions, 230 deletions

diff --git a/common/fb_nand.c b/common/fb_nand.c
deleted file mode 100644
index c07655e49e..0000000000
--- a/common/fb_nand.c
+++ /dev/null
@@ -1,230 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Copyright 2014 Broadcom Corporation.
- * Copyright 2015 Free Electrons.
- */
-
-#include <config.h>
-#include <common.h>
-
-#include <fastboot.h>
-#include <image-sparse.h>
-
-#include <linux/mtd/mtd.h>
-#include <jffs2/jffs2.h>
-#include <nand.h>
-
-struct fb_nand_sparse {
-	struct mtd_info		*mtd;
-	struct part_info	*part;
-};
-
-__weak int board_fastboot_erase_partition_setup(char *name)
-{
-	return 0;
-}
-
-__weak int board_fastboot_write_partition_setup(char *name)
-{
-	return 0;
-}
-
-static int fb_nand_lookup(const char *partname,
-			  struct mtd_info **mtd,
-			  struct part_info **part)
-{
-	struct mtd_device *dev;
-	int ret;
-	u8 pnum;
-
-	ret = mtdparts_init();
-	if (ret) {
-		pr_err("Cannot initialize MTD partitions\n");
-		fastboot_fail("cannot init mtdparts");
-		return ret;
-	}
-
-	ret = find_dev_and_part(partname, &dev, &pnum, part);
-	if (ret) {
-		pr_err("cannot find partition: '%s'", partname);
-		fastboot_fail("cannot find partition");
-		return ret;
-	}
-
-	if (dev->id->type != MTD_DEV_TYPE_NAND) {
-		pr_err("partition '%s' is not stored on a NAND device",
-		      partname);
-		fastboot_fail("not a NAND device");
-		return -EINVAL;
-	}
-
-	*mtd = get_nand_dev_by_index(dev->id->num);
-
-	return 0;
-}
-
-static int _fb_nand_erase(struct mtd_info *mtd, struct part_info *part)
-{
-	nand_erase_options_t opts;
-	int ret;
-
-	memset(&opts, 0, sizeof(opts));
-	opts.offset = part->offset;
-	opts.length = part->size;
-	opts.quiet = 1;
-
-	printf("Erasing blocks 0x%llx to 0x%llx\n",
-	       part->offset, part->offset + part->size);
-
-	ret = nand_erase_opts(mtd, &opts);
-	if (ret)
-		return ret;
-
-	printf("........ erased 0x%llx bytes from '%s'\n",
-	       part->size, part->name);
-
-	return 0;
-}
-
-static int _fb_nand_write(struct mtd_info *mtd, struct part_info *part,
-			  void *buffer, unsigned int offset,
-			  unsigned int length, size_t *written)
-{
-	int flags = WITH_WR_VERIFY;
-
-#ifdef CONFIG_FASTBOOT_FLASH_NAND_TRIMFFS
-	flags |= WITH_DROP_FFS;
-#endif
-
-	return nand_write_skip_bad(mtd, offset, &length, written,
-				   part->size - (offset - part->offset),
-				   buffer, flags);
-}
-
-static lbaint_t fb_nand_sparse_write(struct sparse_storage *info,
-		lbaint_t blk, lbaint_t blkcnt, const void *buffer)
-{
-	struct fb_nand_sparse *sparse = info->priv;
-	size_t written;
-	int ret;
-
-	ret = _fb_nand_write(sparse->mtd, sparse->part, (void *)buffer,
-			     blk * info->blksz,
-			     blkcnt * info->blksz, &written);
-	if (ret < 0) {
-		printf("Failed to write sparse chunk\n");
-		return ret;
-	}
-
-/* TODO - verify that the value "written" includes the "bad-blocks" ... */
-
-	/*
-	 * the return value must be 'blkcnt' ("good-blocks") plus the
-	 * number of "bad-blocks" encountered within this space...
-	 */
-	return written / info->blksz;
-}
-
-static lbaint_t fb_nand_sparse_reserve(struct sparse_storage *info,
-		lbaint_t blk, lbaint_t blkcnt)
-{
-	int bad_blocks = 0;
-
-/*
- * TODO - implement a function to determine the total number
- * of blocks which must be used in order to reserve the specified
- * number ("blkcnt") of "good-blocks", starting at "blk"...
- * ( possibly something like the "check_skip_len()" function )
- */
-
-	/*
-	 * the return value must be 'blkcnt' ("good-blocks") plus the
-	 * number of "bad-blocks" encountered within this space...
-	 */
-	return blkcnt + bad_blocks;
-}
-
-void fb_nand_flash_write(const char *cmd, void *download_buffer,
-			 unsigned int download_bytes)
-{
-	struct part_info *part;
-	struct mtd_info *mtd = NULL;
-	int ret;
-
-	ret = fb_nand_lookup(cmd, &mtd, &part);
-	if (ret) {
-		pr_err("invalid NAND device");
-		fastboot_fail("invalid NAND device");
-		return;
-	}
-
-	ret = board_fastboot_write_partition_setup(part->name);
-	if (ret)
-		return;
-
-	if (is_sparse_image(download_buffer)) {
-		struct fb_nand_sparse sparse_priv;
-		struct sparse_storage sparse;
-
-		sparse_priv.mtd = mtd;
-		sparse_priv.part = part;
-
-		sparse.blksz = mtd->writesize;
-		sparse.start = part->offset / sparse.blksz;
-		sparse.size = part->size / sparse.blksz;
-		sparse.write = fb_nand_sparse_write;
-		sparse.reserve = fb_nand_sparse_reserve;
-		sparse.mssg = fastboot_fail;
-
-		printf("Flashing sparse image at offset " LBAFU "\n",
-		       sparse.start);
-
-		sparse.priv = &sparse_priv;
-		ret = write_sparse_image(&sparse, cmd, download_buffer);
-		if (!ret)
-			fastboot_okay("");
-	} else {
-		printf("Flashing raw image at offset 0x%llx\n",
-		       part->offset);
-
-		ret = _fb_nand_write(mtd, part, download_buffer, part->offset,
-				     download_bytes, NULL);
-
-		printf("........ wrote %u bytes to '%s'\n",
-		       download_bytes, part->name);
-	}
-
-	if (ret) {
-		fastboot_fail("error writing the image");
-		return;
-	}
-
-	fastboot_okay("");
-}
-
-void fb_nand_erase(const char *cmd)
-{
-	struct part_info *part;
-	struct mtd_info *mtd = NULL;
-	int ret;
-
-	ret = fb_nand_lookup(cmd, &mtd, &part);
-	if (ret) {
-		pr_err("invalid NAND device");
-		fastboot_fail("invalid NAND device");
-		return;
-	}
-
-	ret = board_fastboot_erase_partition_setup(part->name);
-	if (ret)
-		return;
-
-	ret = _fb_nand_erase(mtd, part);
-	if (ret) {
-		pr_err("failed erasing from device %s", mtd->name);
-		fastboot_fail("failed erasing from device");
-		return;
-	}
-
-	fastboot_okay("");
-}