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https://github.com/brain-hackers/u-boot-brain
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![Tom Rini](/assets/img/avatar_default.png)
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
144 lines
2.9 KiB
C
144 lines
2.9 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2008 Freescale Semiconductor, Inc.
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* Dave Liu <daveliu@freescale.com>
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* port from the libata of linux kernel
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*/
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#include <libata.h>
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u64 ata_id_n_sectors(u16 *id)
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{
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if (ata_id_has_lba(id)) {
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if (ata_id_has_lba48(id))
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return ata_id_u64(id, ATA_ID_LBA48_SECTORS);
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else
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return ata_id_u32(id, ATA_ID_LBA_SECTORS);
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} else {
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return 0;
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}
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}
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u32 ata_dev_classify(u32 sig)
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{
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u8 lbam, lbah;
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lbam = (sig >> 16) & 0xff;
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lbah = (sig >> 24) & 0xff;
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if (((lbam == 0) && (lbah == 0)) ||
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((lbam == 0x3c) && (lbah == 0xc3)))
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return ATA_DEV_ATA;
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if ((lbam == 0x14) && (lbah == 0xeb))
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return ATA_DEV_ATAPI;
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if ((lbam == 0x69) && (lbah == 0x96))
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return ATA_DEV_PMP;
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return ATA_DEV_UNKNOWN;
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}
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static void ata_id_string(const u16 *id, unsigned char *s,
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unsigned int ofs, unsigned int len)
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{
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unsigned int c;
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while (len > 0) {
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c = id[ofs] >> 8;
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*s = c;
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s++;
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c = id[ofs] & 0xff;
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*s = c;
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s++;
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ofs++;
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len -= 2;
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}
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}
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void ata_id_c_string(const u16 *id, unsigned char *s,
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unsigned int ofs, unsigned int len)
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{
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unsigned char *p;
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ata_id_string(id, s, ofs, len - 1);
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p = s + strnlen((char *)s, len - 1);
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while (p > s && p[-1] == ' ')
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p--;
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*p = '\0';
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}
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void ata_dump_id(u16 *id)
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{
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unsigned char serial[ATA_ID_SERNO_LEN + 1];
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unsigned char firmware[ATA_ID_FW_REV_LEN + 1];
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unsigned char product[ATA_ID_PROD_LEN + 1];
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u64 n_sectors;
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/* Serial number */
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ata_id_c_string(id, serial, ATA_ID_SERNO, sizeof(serial));
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printf("S/N: %s\n\r", serial);
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/* Firmware version */
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ata_id_c_string(id, firmware, ATA_ID_FW_REV, sizeof(firmware));
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printf("Firmware version: %s\n\r", firmware);
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/* Product model */
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ata_id_c_string(id, product, ATA_ID_PROD, sizeof(product));
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printf("Product model number: %s\n\r", product);
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/* Total sectors of device */
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n_sectors = ata_id_n_sectors(id);
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printf("Capablity: %lld sectors\n\r", n_sectors);
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printf ("id[49]: capabilities = 0x%04x\n"
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"id[53]: field valid = 0x%04x\n"
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"id[63]: mwdma = 0x%04x\n"
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"id[64]: pio = 0x%04x\n"
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"id[75]: queue depth = 0x%04x\n",
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id[49],
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id[53],
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id[63],
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id[64],
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id[75]);
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printf ("id[76]: sata capablity = 0x%04x\n"
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"id[78]: sata features supported = 0x%04x\n"
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"id[79]: sata features enable = 0x%04x\n",
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id[76],
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id[78],
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id[79]);
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printf ("id[80]: major version = 0x%04x\n"
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"id[81]: minor version = 0x%04x\n"
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"id[82]: command set supported 1 = 0x%04x\n"
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"id[83]: command set supported 2 = 0x%04x\n"
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"id[84]: command set extension = 0x%04x\n",
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id[80],
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id[81],
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id[82],
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id[83],
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id[84]);
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printf ("id[85]: command set enable 1 = 0x%04x\n"
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"id[86]: command set enable 2 = 0x%04x\n"
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"id[87]: command set default = 0x%04x\n"
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"id[88]: udma = 0x%04x\n"
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"id[93]: hardware reset result = 0x%04x\n",
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id[85],
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id[86],
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id[87],
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id[88],
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id[93]);
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}
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void ata_swap_buf_le16(u16 *buf, unsigned int buf_words)
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{
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unsigned int i;
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for (i = 0; i < buf_words; i++)
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buf[i] = le16_to_cpu(buf[i]);
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}
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