mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-01 00:49:43 +00:00
83d290c56f
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>
121 lines
2.5 KiB
C
121 lines
2.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2010-2016 Freescale Semiconductor, Inc.
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*/
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/* #define DEBUG */
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#include <common.h>
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#include <command.h>
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#include <environment.h>
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#include <linux/stddef.h>
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#include <errno.h>
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#include <memalign.h>
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#include <sata.h>
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#include <search.h>
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#if defined(CONFIG_ENV_SIZE_REDUND) || defined(CONFIG_ENV_OFFSET_REDUND)
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#error ENV REDUND not supported
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#endif
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#if !defined(CONFIG_ENV_OFFSET) || !defined(CONFIG_ENV_SIZE)
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#error CONFIG_ENV_OFFSET or CONFIG_ENV_SIZE not defined
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#endif
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__weak int sata_get_env_dev(void)
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{
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return CONFIG_SYS_SATA_ENV_DEV;
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}
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#ifdef CONFIG_CMD_SAVEENV
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static inline int write_env(struct blk_desc *sata, unsigned long size,
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unsigned long offset, void *buffer)
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{
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uint blk_start, blk_cnt, n;
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blk_start = ALIGN(offset, sata->blksz) / sata->blksz;
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blk_cnt = ALIGN(size, sata->blksz) / sata->blksz;
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n = blk_dwrite(sata, blk_start, blk_cnt, buffer);
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return (n == blk_cnt) ? 0 : -1;
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}
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static int env_sata_save(void)
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{
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ALLOC_CACHE_ALIGN_BUFFER(env_t, env_new, 1);
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struct blk_desc *sata = NULL;
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int env_sata, ret;
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if (sata_initialize())
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return 1;
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env_sata = sata_get_env_dev();
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sata = sata_get_dev(env_sata);
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if (sata == NULL) {
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printf("Unknown SATA(%d) device for environment!\n",
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env_sata);
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return 1;
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}
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ret = env_export(env_new);
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if (ret)
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return 1;
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printf("Writing to SATA(%d)...", env_sata);
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if (write_env(sata, CONFIG_ENV_SIZE, CONFIG_ENV_OFFSET, &env_new)) {
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puts("failed\n");
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return 1;
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}
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puts("done\n");
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return 0;
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}
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#endif /* CONFIG_CMD_SAVEENV */
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static inline int read_env(struct blk_desc *sata, unsigned long size,
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unsigned long offset, void *buffer)
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{
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uint blk_start, blk_cnt, n;
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blk_start = ALIGN(offset, sata->blksz) / sata->blksz;
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blk_cnt = ALIGN(size, sata->blksz) / sata->blksz;
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n = blk_dread(sata, blk_start, blk_cnt, buffer);
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return (n == blk_cnt) ? 0 : -1;
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}
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static void env_sata_load(void)
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{
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ALLOC_CACHE_ALIGN_BUFFER(char, buf, CONFIG_ENV_SIZE);
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struct blk_desc *sata = NULL;
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int env_sata;
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if (sata_initialize())
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return -EIO;
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env_sata = sata_get_env_dev();
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sata = sata_get_dev(env_sata);
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if (sata == NULL) {
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printf("Unknown SATA(%d) device for environment!\n", env_sata);
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return -EIO;
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}
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if (read_env(sata, CONFIG_ENV_SIZE, CONFIG_ENV_OFFSET, buf)) {
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set_default_env(NULL);
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return -EIO;
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}
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return env_import(buf, 1);
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}
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U_BOOT_ENV_LOCATION(sata) = {
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.location = ENVL_ESATA,
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ENV_NAME("SATA")
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.load = env_sata_load,
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.save = env_save_ptr(env_sata_save),
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};
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