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authorTerry Lv <r65388@freescale.com>2010-12-24 16:29:37 +0800
committerTerry Lv <r65388@freescale.com>2011-01-11 20:28:25 +0800
commit9b1177585564a7fc63ea8a377fab7d15b1e43674 (patch)
tree5afa9ae3a60cb06c984a145ead719692a2b3b96f /common
parent84d9443bc45af09dcc8712536becf52fdb8c0de5 (diff)
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ENGR00137358: Add saving environment to sata device support
Add saving environment to sata device support. Signed-off-by: Terry Lv <r65388@freescale.com>
Diffstat (limited to 'common')
-rw-r--r--common/Makefile2
-rw-r--r--common/cmd_nvedit.c3
-rwxr-xr-xcommon/env_sata.c162
3 files changed, 166 insertions, 1 deletions
diff --git a/common/Makefile b/common/Makefile
index 451ccb0..b7953e6 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -58,11 +58,13 @@ COBJS-$(CONFIG_ENV_IS_IN_NVRAM) += env_embedded.o
COBJS-$(CONFIG_ENV_IS_IN_MMC) += env_embedded.o
COBJS-$(CONFIG_ENV_IS_IN_NAND) += env_embedded.o
COBJS-$(CONFIG_ENV_IS_IN_SPI_FLASH) += env_embedded.o
+COBJS-$(CONFIG_ENV_IS_IN_SATA) += env_embedded.o
COBJS-$(CONFIG_ENV_IS_IN_FLASH) += env_flash.o
COBJS-$(CONFIG_ENV_IS_IN_MG_DISK) += env_mgdisk.o
COBJS-$(CONFIG_ENV_IS_IN_NAND) += env_nand.o
COBJS-$(CONFIG_ENV_IS_IN_NVRAM) += env_nvram.o
COBJS-$(CONFIG_ENV_IS_IN_ONENAND) += env_onenand.o
+COBJS-$(CONFIG_ENV_IS_IN_SATA) += env_sata.o
COBJS-$(CONFIG_ENV_IS_IN_SPI_FLASH) += env_sf.o
COBJS-$(CONFIG_ENV_IS_IN_MMC) += env_mmc.o
COBJS-$(CONFIG_ENV_IS_NOWHERE) += env_nowhere.o
diff --git a/common/cmd_nvedit.c b/common/cmd_nvedit.c
index e0ccd56..f5cef1b 100644
--- a/common/cmd_nvedit.c
+++ b/common/cmd_nvedit.c
@@ -61,8 +61,9 @@ DECLARE_GLOBAL_DATA_PTR;
!defined(CONFIG_ENV_IS_IN_ONENAND) && \
!defined(CONFIG_ENV_IS_IN_SPI_FLASH) && \
!defined(CONFIG_ENV_IS_IN_MMC) && \
+ !defined(CONFIG_ENV_IS_IN_SATA) && \
!defined(CONFIG_ENV_IS_NOWHERE)
-# error Define one of CONFIG_ENV_IS_IN_{NVRAM|EEPROM|FLASH|DATAFLASH|ONENAND|SPI_FLASH|MMC|MG_DISK|NOWHERE}
+# error Define one of CONFIG_ENV_IS_IN_{NVRAM|EEPROM|FLASH|DATAFLASH|ONENAND|SPI_FLASH|SATA|MMC|MG_DISK|NOWHERE}
#endif
#define XMK_STR(x) #x
diff --git a/common/env_sata.c b/common/env_sata.c
new file mode 100755
index 0000000..522a335
--- /dev/null
+++ b/common/env_sata.c
@@ -0,0 +1,162 @@
+/*
+ * (C) Copyright 2010-2011 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/* #define DEBUG */
+
+#include <common.h>
+
+#include <command.h>
+#include <environment.h>
+#include <linux/stddef.h>
+#include <sata.h>
+
+/* references to names in env_common.c */
+extern uchar default_environment[];
+
+char *env_name_spec = "SATA";
+
+#ifdef ENV_IS_EMBEDDED
+extern uchar environment[];
+env_t *env_ptr = (env_t *)(&environment[0]);
+#else /* ! ENV_IS_EMBEDDED */
+env_t *env_ptr;
+#endif /* ENV_IS_EMBEDDED */
+
+extern int sata_curr_device;
+
+/* local functions */
+#if !defined(ENV_IS_EMBEDDED)
+static void use_default(void);
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+uchar env_get_char_spec(int index)
+{
+ return *((uchar *)(gd->env_addr + index));
+}
+
+int env_init(void)
+{
+ /* use default */
+ gd->env_addr = (ulong)&default_environment[0];
+ gd->env_valid = 1;
+
+ return 0;
+}
+
+#ifdef CONFIG_CMD_SAVEENV
+
+inline int write_env(block_dev_desc_t *sata, unsigned long size,
+ unsigned long offset, const 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 = sata->block_write(sata_curr_device, blk_start,
+ blk_cnt, (u_char *)buffer);
+
+ return (n == blk_cnt) ? 0 : -1;
+}
+
+int saveenv(void)
+{
+ struct block_dev_desc_t *sata = NULL;
+
+ if (sata_curr_device == -1) {
+ if (sata_initialize())
+ return 1;
+ sata_curr_device = CONFIG_SATA_ENV_DEV;
+ }
+
+ if (sata_curr_device >= CONFIG_SYS_SATA_MAX_DEVICE) {
+ printf("Unknown SATA(%d) device for environment!\n",
+ sata_curr_device);
+ return 1;
+ }
+
+ sata = sata_get_dev(sata_curr_device);
+
+ printf("Writing to SATA(%d)... ", sata_curr_device);
+ if (write_env(sata, CONFIG_ENV_SIZE, CONFIG_ENV_OFFSET, env_ptr)) {
+ puts("failed\n");
+ return 1;
+ }
+
+ puts("done\n");
+ return 0;
+}
+#endif /* CONFIG_CMD_SAVEENV */
+
+inline int read_env(block_dev_desc_t *sata, unsigned long size,
+ unsigned long offset, const 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 = sata->block_read(sata_curr_device, blk_start,
+ blk_cnt, (uchar *)buffer);
+
+ return (n == blk_cnt) ? 0 : -1;
+}
+
+void env_relocate_spec(void)
+{
+#if !defined(ENV_IS_EMBEDDED)
+ struct block_dev_desc_t *sata = NULL;
+ int i = 0;
+
+ if (sata_curr_device == -1) {
+ if (sata_initialize())
+ return 1;
+ sata_curr_device = CONFIG_SATA_ENV_DEV;
+ }
+
+ if (sata_curr_device >= CONFIG_SYS_SATA_MAX_DEVICE) {
+ printf("Unknown SATA(%d) device for environment!\n",
+ sata_curr_device);
+ return 1;
+ }
+ sata = sata_get_dev(sata_curr_device);
+
+ if (read_env(sata, CONFIG_ENV_SIZE, CONFIG_ENV_OFFSET, env_ptr))
+ return use_default();
+
+ if (crc32(0, env_ptr->data, ENV_SIZE) != env_ptr->crc)
+ return use_default();
+
+ gd->env_valid = 1;
+#endif
+}
+
+#if !defined(ENV_IS_EMBEDDED)
+static void use_default()
+{
+ puts("*** Warning - bad CRC or MMC, using default environment\n\n");
+ set_default_env();
+}
+#endif
+