AVR flash: handle AT90CAN128 chips

I have successfully programmed the AT90CAN128, based on the mega128  
with some small modifications.

[ dbrownell@users.sourceforge.net: patch cleanup ]

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>

diff --git a/src/flash/nor/avrf.c b/src/flash/nor/avrf.c
index c0724190507a55a21fea0294b49a56449086a92b..5b40ad73d80a78541e98360f898b3a34f584b747 100644 (file)
--- a/src/flash/nor/avrf.c
+++ b/src/flash/nor/avrf.c
@@ -52,8 +52,11 @@
 
 struct avrf_type avft_chips_info[] =
 {
-//      name,                  chip_id,        flash_page_size,        flash_page_num, eeprom_page_size,       eeprom_page_num
-       {"atmega128",   0x9702,         256,                            512,                    8,                                      512},
+/*     name, chip_id,  flash_page_size, flash_page_num,
+ *                     eeprom_page_size, eeprom_page_num
+ */
+       {"atmega128",   0x9702, 256, 512, 8, 512},
+       {"at90can128",  0x9781, 256, 512, 8, 512},
 };
 
 int avr_jtag_sendinstr(struct jtag_tap *tap, uint8_t *ir_in, uint8_t ir_out);
@@ -200,8 +203,27 @@ FLASH_BANK_COMMAND_HANDLER(avrf_flash_bank_command)
 
 static int avrf_erase(struct flash_bank *bank, int first, int last)
 {
-       LOG_INFO("%s", __FUNCTION__);
-       return ERROR_OK;
+       struct target *target = bank->target;
+       struct avr_common *avr = target->arch_info;
+       int status;
+
+       LOG_DEBUG("%s", __FUNCTION__);
+
+       if (target->state != TARGET_HALTED)
+       {
+               LOG_ERROR("Target not halted");
+               return ERROR_TARGET_NOT_HALTED;
+       }
+
+       status = avr_jtagprg_enterprogmode(avr);
+       if (status != ERROR_OK)
+               return status;
+
+       status = avr_jtagprg_chiperase(avr);
+       if (status != ERROR_OK)
+               return status;
+
+       return avr_jtagprg_leaveprogmode(avr);
 }
 
 static int avrf_protect(struct flash_bank *bank, int set, int first, int last)