From af1a266670d040d2f4083ff309d732d648afba2a Mon Sep 17 00:00:00 2001
From: Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com>
Date: Tue, 10 Oct 2023 14:33:42 +0000
Subject: Add submodule dependency files
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
---
roms/u-boot/env/sata.c | 122 +++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 122 insertions(+)
create mode 100644 roms/u-boot/env/sata.c
(limited to 'roms/u-boot/env/sata.c')
diff --git a/roms/u-boot/env/sata.c b/roms/u-boot/env/sata.c
new file mode 100644
index 000000000..9442cfcaf
--- /dev/null
+++ b/roms/u-boot/env/sata.c
@@ -0,0 +1,122 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2010-2016 Freescale Semiconductor, Inc.
+ */
+
+/* #define DEBUG */
+
+#include <common.h>
+
+#include <command.h>
+#include <env.h>
+#include <env_internal.h>
+#include <linux/stddef.h>
+#include <errno.h>
+#include <memalign.h>
+#include <sata.h>
+#include <search.h>
+
+#if defined(CONFIG_ENV_OFFSET_REDUND)
+#error ENV REDUND not supported
+#endif
+
+#if !defined(CONFIG_ENV_OFFSET) || !defined(CONFIG_ENV_SIZE)
+#error CONFIG_ENV_OFFSET or CONFIG_ENV_SIZE not defined
+#endif
+
+__weak int sata_get_env_dev(void)
+{
+ return CONFIG_SYS_SATA_ENV_DEV;
+}
+
+#ifdef CONFIG_CMD_SAVEENV
+static inline int write_env(struct blk_desc *sata, unsigned long size,
+ unsigned long offset, void *buffer)
+{
+ uint blk_start, blk_cnt, n;
+
+ blk_start = ALIGN(offset, sata->blksz) / sata->blksz;
+ blk_cnt = ALIGN(size, sata->blksz) / sata->blksz;
+
+ n = blk_dwrite(sata, blk_start, blk_cnt, buffer);
+
+ return (n == blk_cnt) ? 0 : -1;
+}
+
+static int env_sata_save(void)
+{
+ ALLOC_CACHE_ALIGN_BUFFER(env_t, env_new, 1);
+ struct blk_desc *sata = NULL;
+ int env_sata, ret;
+
+ if (sata_initialize())
+ return 1;
+
+ env_sata = sata_get_env_dev();
+
+ sata = sata_get_dev(env_sata);
+ if (sata == NULL) {
+ printf("Unknown SATA(%d) device for environment!\n",
+ env_sata);
+ return 1;
+ }
+
+ ret = env_export(env_new);
+ if (ret)
+ return 1;
+
+ printf("Writing to SATA(%d)...", env_sata);
+ if (write_env(sata, CONFIG_ENV_SIZE, CONFIG_ENV_OFFSET, (u_char *)env_new)) {
+ puts("failed\n");
+ return 1;
+ }
+
+ puts("done\n");
+ return 0;
+}
+#endif /* CONFIG_CMD_SAVEENV */
+
+static inline int read_env(struct blk_desc *sata, unsigned long size,
+ unsigned long offset, void *buffer)
+{
+ uint blk_start, blk_cnt, n;
+
+ blk_start = ALIGN(offset, sata->blksz) / sata->blksz;
+ blk_cnt = ALIGN(size, sata->blksz) / sata->blksz;
+
+ n = blk_dread(sata, blk_start, blk_cnt, buffer);
+
+ return (n == blk_cnt) ? 0 : -1;
+}
+
+static void env_sata_load(void)
+{
+ ALLOC_CACHE_ALIGN_BUFFER(char, buf, CONFIG_ENV_SIZE);
+ struct blk_desc *sata = NULL;
+ int env_sata;
+
+ if (sata_initialize())
+ return -EIO;
+
+ env_sata = sata_get_env_dev();
+
+ sata = sata_get_dev(env_sata);
+ if (sata == NULL) {
+ printf("Unknown SATA(%d) device for environment!\n", env_sata);
+ return -EIO;
+ }
+
+ if (read_env(sata, CONFIG_ENV_SIZE, CONFIG_ENV_OFFSET, buf)) {
+ env_set_default(NULL, 0);
+ return -EIO;
+ }
+
+ return env_import(buf, 1, H_EXTERNAL);
+}
+
+U_BOOT_ENV_LOCATION(sata) = {
+ .location = ENVL_ESATA,
+ ENV_NAME("SATA")
+ .load = env_sata_load,
+ .save = env_save_ptr(env_sata_save),
+};
--
cgit