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-rw-r--r--common/Makefile2
-rw-r--r--common/cmd_flash.c22
-rw-r--r--common/cmd_mem.c19
-rw-r--r--common/cmd_nvedit.c8
-rw-r--r--common/env_dataflash.c104
5 files changed, 147 insertions, 8 deletions
diff --git a/common/Makefile b/common/Makefile
index dae5942..5595c23 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -42,7 +42,7 @@ COBJS = main.o ACEX1K.o altera.o bedbug.o \
cmd_reginfo.o cmd_scsi.o cmd_spi.o cmd_usb.o cmd_vfd.o \
command.o console.o devices.o dlmalloc.o docecc.o \
environment.o env_common.o \
- env_flash.o env_eeprom.o env_nvram.o env_nowhere.o exports.o \
+ env_dataflash.o env_flash.o env_eeprom.o env_nvram.o env_nowhere.o exports.o \
flash.o fpga.o \
hush.o kgdb.o lists.o lynxkdi.o miiphybb.o miiphyutil.o \
s_record.o soft_i2c.o soft_spi.o spartan2.o \
diff --git a/common/cmd_flash.c b/common/cmd_flash.c
index 430a33e..a51b5e9 100644
--- a/common/cmd_flash.c
+++ b/common/cmd_flash.c
@@ -307,7 +307,9 @@ int do_protect (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
ulong bank, addr_first, addr_last;
int i, p, n, sect_first, sect_last;
int rcode = 0;
-
+#ifdef CONFIG_HAS_DATAFLASH
+ int status;
+#endif
if (argc < 3) {
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
@@ -322,6 +324,24 @@ int do_protect (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
return 1;
}
+#ifdef CONFIG_HAS_DATAFLASH
+ if ((strcmp(argv[2], "all") != 0) && (strcmp(argv[2], "bank") != 0)) {
+ addr_first = simple_strtoul(argv[2], NULL, 16);
+ addr_last = simple_strtoul(argv[3], NULL, 16);
+
+ if (addr_dataflash(addr_first) && addr_dataflash(addr_last)) {
+ status = dataflash_real_protect(p,addr_first,addr_last);
+ if (status < 0){
+ printf("Bad DataFlash sector specification\n");
+ return 1;
+ }
+ printf("%sProtect %d DataFlash Sectors\n",
+ p ? "" : "Un-", status);
+ return 0;
+ }
+ }
+#endif
+
if (strcmp(argv[2], "all") == 0) {
for (bank=1; bank<=CFG_MAX_FLASH_BANKS; ++bank) {
info = &flash_info[bank-1];
diff --git a/common/cmd_mem.c b/common/cmd_mem.c
index 3918678..35b3901 100644
--- a/common/cmd_mem.c
+++ b/common/cmd_mem.c
@@ -136,13 +136,19 @@ int do_mem_md ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
uint *uip = (uint *)linebuf;
ushort *usp = (ushort *)linebuf;
u_char *ucp = (u_char *)linebuf;
-
+#ifdef CONFIG_HAS_DATAFLASH
+ int rc;
+#endif
printf("%08lx:", addr);
linebytes = (nbytes>DISP_LINE_LEN)?DISP_LINE_LEN:nbytes;
#ifdef CONFIG_HAS_DATAFLASH
- if (read_dataflash(addr, (linebytes/size)*size, linebuf) != -1){
-
+ if ((rc = read_dataflash(addr, (linebytes/size)*size, linebuf)) == DATAFLASH_OK){
+ /* if outside dataflash */
+ /*if (rc != 1) {
+ dataflash_perror (rc);
+ return (1);
+ }*/
for (i=0; i<linebytes; i+= size) {
if (size == 4) {
printf(" %08x", *uip++);
@@ -430,7 +436,12 @@ int do_mem_cp ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
/* Check if we are copying from DataFlash to RAM */
if (addr_dataflash(addr) && !addr_dataflash(dest) && (addr2info(dest)==NULL) ){
- read_dataflash(addr, count * size, (char *) dest);
+ int rc;
+ rc = read_dataflash(addr, count * size, (char *) dest);
+ if (rc != 1) {
+ dataflash_perror (rc);
+ return (1);
+ }
return 0;
}
diff --git a/common/cmd_nvedit.c b/common/cmd_nvedit.c
index 53df582..a3898dd 100644
--- a/common/cmd_nvedit.c
+++ b/common/cmd_nvedit.c
@@ -49,8 +49,12 @@
#include <net.h>
#endif
-#if !defined(CFG_ENV_IS_IN_NVRAM) && !defined(CFG_ENV_IS_IN_EEPROM) && !defined(CFG_ENV_IS_IN_FLASH) && !defined(CFG_ENV_IS_NOWHERE)
-# error Define one of CFG_ENV_IS_IN_NVRAM, CFG_ENV_IS_IN_EEPROM, CFG_ENV_IS_IN_FLASH, CFG_ENV_IS_NOWHERE
+#if !defined(CFG_ENV_IS_IN_NVRAM) && \
+ !defined(CFG_ENV_IS_IN_EEPROM) && \
+ !defined(CFG_ENV_IS_IN_FLASH) && \
+ !defined(CFG_ENV_IS_IN_DATAFLASH) && \
+ !defined(CFG_ENV_IS_NOWHERE)
+# error Define one of CFG_ENV_IS_IN_{NVRAM|EEPROM|FLASH|DATAFLASH|NOWHERE}
#endif
#define XMK_STR(x) #x
diff --git a/common/env_dataflash.c b/common/env_dataflash.c
new file mode 100644
index 0000000..8bfbbc9
--- /dev/null
+++ b/common/env_dataflash.c
@@ -0,0 +1,104 @@
+/* LowLevel function for DataFlash environment support
+ * Author : Gilles Gastaldi (Atmel)
+ *
+ * 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
+ *
+ */
+#include <common.h>
+
+#if defined(CFG_ENV_IS_IN_DATAFLASH) /* Environment is in DataFlash */
+
+#include <command.h>
+#include <environment.h>
+#include <linux/stddef.h>
+#include <malloc.h>
+#include <dataflash.h>
+
+env_t *env_ptr = NULL;
+
+char * env_name_spec = "dataflash";
+
+extern int read_dataflash (unsigned long addr, unsigned long size, char
+*result);
+extern int write_dataflash (unsigned long addr_dest, unsigned long addr_src,
+ unsigned long size);
+extern int AT91F_DataflashInit (void);
+extern uchar default_environment[];
+/* extern int default_environment_size; */
+
+
+uchar env_get_char_spec (int index)
+{
+ uchar c;
+ read_dataflash (CFG_ENV_ADDR+index+offsetof(env_t,data),1,&c);
+ return (c);
+}
+
+void env_relocate_spec (void)
+{
+ read_dataflash (CFG_ENV_ADDR,CFG_ENV_SIZE,(uchar *)env_ptr);
+}
+
+int saveenv(void)
+{
+/* env must be copied to do not alter env structure in memory*/
+unsigned char temp[CFG_ENV_SIZE];
+int i;
+ memcpy(temp, env_ptr, CFG_ENV_SIZE);
+ return write_dataflash (CFG_ENV_ADDR, (unsigned long)temp, CFG_ENV_SIZE);
+}
+
+/************************************************************************
+ * Initialize Environment use
+ *
+ * We are still running from ROM, so data use is limited
+ * Use a (moderately small) buffer on the stack
+ */
+int env_init(void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ ulong crc, len, new;
+ unsigned off;
+ uchar buf[64];
+ if (gd->env_valid == 0){
+ AT91F_DataflashInit(); /* prepare for DATAFLASH read/write */
+
+ /* read old CRC */
+ read_dataflash (CFG_ENV_ADDR+offsetof(env_t,crc),sizeof(ulong),&crc);
+ new = 0;
+ len = ENV_SIZE;
+ off = offsetof(env_t,data);
+ while (len > 0) {
+ int n = (len > sizeof(buf)) ? sizeof(buf) : len;
+ read_dataflash (CFG_ENV_ADDR+off,n , buf);
+ new = crc32 (new, buf, n);
+ len -= n;
+ off += n;
+ }
+ if (crc == new) {
+ gd->env_addr = offsetof(env_t,data);
+ gd->env_valid = 1;
+ } else {
+ gd->env_addr = (ulong)&default_environment[0];
+ gd->env_valid = 0;
+ }
+ }
+
+ return (0);
+}
+
+#endif /* CFG_ENV_IS_IN_DATAFLASH */
generated by cgit v1.1 at 2024-11-24 10:46:34 +0000