diff options
Diffstat (limited to 'src/flash/x7026.c')
| -rw-r--r-- | src/flash/x7026.c | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/src/flash/x7026.c b/src/flash/x7026.c new file mode 100644 index 00000000..e700a8bd --- /dev/null +++ b/src/flash/x7026.c @@ -0,0 +1,217 @@ +/***************************************************************************
+ * Copyright (C) 2008 by Kevin McGuire *
+ * Copyright (C) 2008 by Marcel Wijlaars *
+ *
+ * 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. *
+ ***************************************************************************/
+
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "replacements.h"
+
+#include "flash.h"
+#include "target.h"
+#include "log.h"
+#include "armv4_5.h"
+#include "algorithm.h"
+#include "binarybuffer.h"
+
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+int x7026_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank);
+int x7026_register_commands(struct command_context_s *cmd_ctx);
+int x7026_erase(struct flash_bank_s *bank, int first, int last);
+int x7026_protect(struct flash_bank_s *bank, int set, int first, int last);
+int x7026_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count);
+int x7026_probe(struct flash_bank_s *bank);
+int x7026_info(struct flash_bank_s *bank, char *buf, int buf_size);
+int x7026_protect_check(struct flash_bank_s *bank);
+int x7026_erase_check(struct flash_bank_s *bank);
+
+#define ADUC7026_FLASH 0xfffff800
+#define ADUC7026_FLASH_FEESTA (0*4)
+#define ADUC7026_FLASH_FEEMOD (1*4)
+#define ADUC7026_FLASH_FEECON (2*4)
+#define ADUC7026_FLASH_FEEDAT (3*4)
+#define ADUC7026_FLASH_FEEADR (4*4)
+#define ADUC7026_FLASH_FEESIGN (5*4)
+#define ADUC7026_FLASH_FEEPRO (6*4)
+#define ADUC7026_FLASH_FEEHIDE (7*4)
+
+typedef struct{
+ uint32_t feesta;
+ uint32_t feemod;
+ uint32_t feecon;
+ uint32_t feedat;
+ uint32_t feeadr;
+ uint32_t feesign;
+ uint32_t feepro;
+ uint32_t feehide;
+} ADUC7026_FLASH_MMIO;
+
+typedef struct
+{
+ unsigned char tmp;
+} X7026_BANK;
+
+flash_driver_t x7026_flash =
+{
+ .name = "x7026",
+ .register_commands = x7026_register_commands,
+ .flash_bank_command = x7026_flash_bank_command,
+ .erase = x7026_erase,
+ .protect = x7026_protect,
+ .write = x7026_write,
+ .probe = x7026_probe,
+ .auto_probe = x7026_probe,
+ .erase_check = x7026_erase_check,
+ .protect_check = x7026_protect_check,
+ .info = x7026_info
+};
+
+int x7026_register_commands(struct command_context_s *cmd_ctx)
+{
+ printf("x7026_register_commands not implemented yet.\n");
+ return ERROR_OK;
+}
+
+/* flash bank str7x <base> <size> 0 0 <target#> */
+int x7026_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank)
+{
+ X7026_BANK *nbank;
+
+ if (argc < 6)
+ {
+ LOG_WARNING("incomplete flash_bank x7026 configuration");
+ return ERROR_FLASH_BANK_INVALID;
+ }
+
+ nbank = malloc(sizeof(X7026_BANK));
+ /* just warn that we are used to normally using 0x80000 */
+ if(bank->base != 0x80000)
+ {
+ LOG_WARNING("Default base address is 0x80000 on the ADuC7026!");
+ }
+ nbank->tmp = 1;
+ bank->driver_priv = nbank;
+ return ERROR_OK;
+}
+
+int x7026_protect_check(struct flash_bank_s *bank)
+{
+ printf("x7026_protect_check not implemented yet.\n");
+ return ERROR_OK;
+}
+
+int x7026_erase(struct flash_bank_s *bank, int first, int last)
+{
+ unsigned int x;
+ int count;
+ u32 v;
+ target_t *target = bank->target;
+
+ /* mass erase */
+ if((first | last) == 0)
+ {
+ printf("performing mass erase.\n");
+ target_write_u32(target, ADUC7026_FLASH + ADUC7026_FLASH_FEEDAT, 0x3cff);
+ target_write_u32(target, ADUC7026_FLASH + ADUC7026_FLASH_FEEADR, 0xffc3);
+ target_read_u32(target, ADUC7026_FLASH + ADUC7026_FLASH_FEEMOD, &v);
+ target_write_u32(target, ADUC7026_FLASH + ADUC7026_FLASH_FEEMOD, v | 0x8);
+ target_write_u32(target, ADUC7026_FLASH + ADUC7026_FLASH_FEECON, 0x06);
+ for(v = 0x4; v & 0x4;
+ target_read_u32(target, ADUC7026_FLASH + ADUC7026_FLASH_FEESTA, &v));
+
+ if(!(v & 0x1))
+ {
+ printf("mass erase failed.\n");
+ return -1;
+ }
+ printf("mass erase successful.\n");
+ return ERROR_OK;
+ }
+
+ count = last - first;
+ for(x = 0; x < (unsigned int)count; ++x)
+ {
+ target_write_u32(target, ADUC7026_FLASH + ADUC7026_FLASH_FEEADR, bank->base + first * 512 + x * 512);
+ target_write_u32(target, ADUC7026_FLASH + ADUC7026_FLASH_FEECON, 0x05);
+ for(v = 0x4; v & 0x4; target_read_u32(target, ADUC7026_FLASH + ADUC7026_FLASH_FEESTA, &v));
+ if(!(v & 0x1))
+ {
+ printf("erase failed for page address %x\n", bank->base + first * 512 + x * 512);
+ return -1;
+ }
+ printf("erased page address %x\n", bank->base + first * 512 + x * 512);
+ }
+ return ERROR_OK;
+}
+
+int x7026_protect(struct flash_bank_s *bank, int set, int first, int last)
+{
+ printf("x7026_protect not implemented yet.\n");
+ return -1;
+}
+
+int x7026_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count)
+{
+ unsigned int x;
+ u32 v;
+ target_t *target = bank->target;
+ for(x = 0; x < count; x += 2)
+ {
+ target_write_u32(target, ADUC7026_FLASH + ADUC7026_FLASH_FEEADR, offset + x);
+ /* if we able to encounter a single byte instead of a word */
+ if((x + 1) == count)
+ {
+ target_write_u32(target, ADUC7026_FLASH + ADUC7026_FLASH_FEEDAT, buffer[x]);
+ }else{
+ target_write_u32(target, ADUC7026_FLASH + ADUC7026_FLASH_FEEDAT, buffer[x] | (buffer[x+1] << 8));
+ }
+ target_write_u32(target, ADUC7026_FLASH + ADUC7026_FLASH_FEECON, 0x02);
+ for(v = 0x4; v & 0x4; target_read_u32(target, ADUC7026_FLASH + ADUC7026_FLASH_FEESTA, &v));
+ if(!(v & 0x1))
+ {
+ printf("single write failed for address %x.\n", offset + x);
+ return -1;
+ }
+ printf("single write for address %x.\n", offset + x);
+ }
+ return ERROR_OK;
+}
+
+int x7026_probe(struct flash_bank_s *bank)
+{
+ printf("x7026_probe not implemented yet.\n");
+ return ERROR_OK;
+}
+
+int x7026_info(struct flash_bank_s *bank, char *buf, int buf_size)
+{
+ snprintf(buf, buf_size, "x7026 flash driver info" );
+ return -1;
+}
+
+int x7026_erase_check(struct flash_bank_s *bank)
+{
+ printf("x7026_erase_check not implemented yet.\n");
+ return -1;
+}
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