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https://github.com/brain-hackers/u-boot-brain
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4b19ed6c76
UMS init was implemented in trats board file but mostly it comprises common code. Due to that it has been moved to common/ums.c to avoid code duplication in the future. Changes: - move ums initialization code from trats to common/ums.c - remove unused CONFIG_USB_GADGET_MASS_STORAGE from trats.h Changes v2: - move this patch at the top of code cleanups patches Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Marek Vasut <marex@denx.de> Cc: Minkyu Kang <mk7.kang@samsung.com>
77 lines
1.8 KiB
C
77 lines
1.8 KiB
C
/*
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* Copyright (C) 2013 Samsung Electronics
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* Lukasz Majewski <l.majewski@samsung.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <usb_mass_storage.h>
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#include <part.h>
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static int ums_read_sector(struct ums *ums_dev,
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ulong start, lbaint_t blkcnt, void *buf)
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{
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block_dev_desc_t *block_dev = &ums_dev->mmc->block_dev;
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lbaint_t blkstart = start + ums_dev->start_sector;
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int dev_num = block_dev->dev;
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return block_dev->block_read(dev_num, blkstart, blkcnt, buf);
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}
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static int ums_write_sector(struct ums *ums_dev,
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ulong start, lbaint_t blkcnt, const void *buf)
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{
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block_dev_desc_t *block_dev = &ums_dev->mmc->block_dev;
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lbaint_t blkstart = start + ums_dev->start_sector;
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int dev_num = block_dev->dev;
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return block_dev->block_write(dev_num, blkstart, blkcnt, buf);
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}
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static struct ums ums_dev = {
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.read_sector = ums_read_sector,
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.write_sector = ums_write_sector,
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.name = "UMS disk",
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};
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static struct ums *ums_disk_init(struct mmc *mmc)
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{
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uint64_t mmc_end_sector = mmc->capacity / SECTOR_SIZE;
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uint64_t ums_end_sector = UMS_NUM_SECTORS + UMS_START_SECTOR;
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if (!mmc_end_sector) {
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error("MMC capacity is not valid");
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return NULL;
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}
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ums_dev.mmc = mmc;
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if (ums_end_sector <= mmc_end_sector) {
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ums_dev.start_sector = UMS_START_SECTOR;
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if (UMS_NUM_SECTORS)
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ums_dev.num_sectors = UMS_NUM_SECTORS;
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else
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ums_dev.num_sectors = mmc_end_sector - UMS_START_SECTOR;
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} else {
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ums_dev.num_sectors = mmc_end_sector;
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puts("UMS: defined bad disk parameters. Using default.\n");
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}
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printf("UMS: disk start sector: %#x, count: %#x\n",
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ums_dev.start_sector, ums_dev.num_sectors);
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return &ums_dev;
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}
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struct ums *ums_init(unsigned int dev_num)
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{
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struct mmc *mmc = NULL;
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mmc = find_mmc_device(dev_num);
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if (!mmc)
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return NULL;
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return ums_disk_init(mmc);
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}
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