Chip features an optional permanent boot block write protection.
Signed-off-by: Stefan Tauner <[email protected]>
Signed-off-by: David Borg <[email protected]>
---
diff of flashchips.c looks very odd, this is because i moved AT49F020 down.
- rebased
- voltages added
- FEATURE_ADDR_FULL flag removed
- printlock_at49f040 added (location dubios, but w39_idmode_readb
implements what is needed already (and is static...)
- AT49F020 does also feature a permanent lock (8 kB boot block), which uses
the same detection method...
---
chipdrivers.h | 1 +
flashchips.c | 80 ++++++++++++++++++++++++++++++++++++++++++---------------
flashchips.h | 5 ++-
w39.c | 8 +++++
4 files changed, 71 insertions(+), 23 deletions(-)
diff --git a/chipdrivers.h b/chipdrivers.h
index 92ddbea..4583ae6 100644
--- a/chipdrivers.h
+++ b/chipdrivers.h
@@ -136,6 +136,7 @@ int printlock_w39v080fa(struct flashchip *flash);
int printlock_w39v080fa_dual(struct flashchip *flash);
int unlock_w39v040fb(struct flashchip *flash);
int unlock_w39v080fa(struct flashchip *flash);
+int printlock_at49f(struct flashchip *flash);
/* w29ee011.c */
int probe_w29ee011(struct flashchip *flash);
diff --git a/flashchips.c b/flashchips.c
index 1a5622f..3d260b9 100644
--- a/flashchips.c
+++ b/flashchips.c
@@ -2218,19 +2218,27 @@ const struct flashchip flashchips[] = {
{
.vendor = "Atmel",
- .name = "AT49F020",
+ .name = "AT49F002(N)",
.bustype = BUS_PARALLEL,
.manufacture_id = ATMEL_ID,
- .model_id = ATMEL_AT49F020,
+ .model_id = ATMEL_AT49F002N,
.total_size = 256,
.page_size = 256,
.feature_bits = FEATURE_EITHER_RESET,
- .tested = TEST_OK_PRE,
+ .tested = TEST_UNTESTED,
.probe = probe_jedec,
.probe_timing = TIMING_ZERO, /* Datasheet has no timing info
specified */
.block_erasers =
{
{
+ .eraseblocks = {
+ {16 * 1024, 1},
+ {8 * 1024, 2},
+ {96 * 1024, 1},
+ {128 * 1024, 1},
+ },
+ .block_erase = erase_sector_jedec,
+ }, {
.eraseblocks = { {256 * 1024, 1} },
.block_erase = erase_chip_block_jedec,
}
@@ -2242,24 +2250,24 @@ const struct flashchip flashchips[] = {
{
.vendor = "Atmel",
- .name = "AT49F002(N)",
+ .name = "AT49F002(N)T",
.bustype = BUS_PARALLEL,
.manufacture_id = ATMEL_ID,
- .model_id = ATMEL_AT49F002N,
+ .model_id = ATMEL_AT49F002NT,
.total_size = 256,
.page_size = 256,
.feature_bits = FEATURE_EITHER_RESET,
- .tested = TEST_UNTESTED,
+ .tested = TEST_OK_PR,
.probe = probe_jedec,
.probe_timing = TIMING_ZERO, /* Datasheet has no timing info
specified */
.block_erasers =
{
{
.eraseblocks = {
- {16 * 1024, 1},
- {8 * 1024, 2},
- {96 * 1024, 1},
{128 * 1024, 1},
+ {96 * 1024, 1},
+ {8 * 1024, 2},
+ {16 * 1024, 1},
},
.block_erase = erase_sector_jedec,
}, {
@@ -2274,31 +2282,61 @@ const struct flashchip flashchips[] = {
{
.vendor = "Atmel",
- .name = "AT49F002(N)T",
+ .name = "AT49F020",
.bustype = BUS_PARALLEL,
.manufacture_id = ATMEL_ID,
- .model_id = ATMEL_AT49F002NT,
+ .model_id = ATMEL_AT49F020,
.total_size = 256,
.page_size = 256,
.feature_bits = FEATURE_EITHER_RESET,
- .tested = TEST_OK_PR,
+ .tested = TEST_OK_PRE,
.probe = probe_jedec,
.probe_timing = TIMING_ZERO, /* Datasheet has no timing info
specified */
.block_erasers =
{
{
- .eraseblocks = {
- {128 * 1024, 1},
- {96 * 1024, 1},
- {8 * 1024, 2},
- {16 * 1024, 1},
- },
- .block_erase = erase_sector_jedec,
- }, {
.eraseblocks = { {256 * 1024, 1} },
.block_erase = erase_chip_block_jedec,
}
+ /* Chip features an optional permanent write protection
+ * of the first 8 kB. The erase function is the same as
+ * above, but 00000H to 01FFFH will not be erased.
+ * FIXME: add another eraser when partial erasers are
+ * supported.
+ */
+ },
+ .printlock = printlock_at49f,
+ .write = write_jedec_1,
+ .read = read_memmapped,
+ .voltage = {4500, 5500},
+ },
+
+ {
+ .vendor = "Atmel",
+ .name = "AT49F040",
+ .bustype = BUS_PARALLEL,
+ .manufacture_id = ATMEL_ID,
+ .model_id = ATMEL_AT49F040,
+ .total_size = 512,
+ .page_size = 512,
+ .feature_bits = FEATURE_EITHER_RESET,
+ .tested = TEST_UNTESTED,
+ .probe = probe_jedec,
+ .probe_timing = TIMING_ZERO, /* Datasheet has no timing info
specified */
+ .block_erasers =
+ {
+ {
+ .eraseblocks = { {512 * 1024, 1} },
+ .block_erase = erase_chip_block_jedec,
+ }
+ /* Chip features an optional permanent write protection
+ * of the first 16 kB. The erase function is the same as
+ * above, but 00000H to 03FFFH will not be erased.
+ * FIXME: add another eraser when partial erasers are
+ * supported.
+ */
},
+ .printlock = printlock_at49f,
.write = write_jedec_1,
.read = read_memmapped,
.voltage = {4500, 5500},
diff --git a/flashchips.h b/flashchips.h
index ff49d31..c9685ac 100644
--- a/flashchips.h
+++ b/flashchips.h
@@ -181,9 +181,10 @@
#define ATMEL_AT45DB642 /* No ID available */
#define ATMEL_AT45DB642D 0x2800
#define ATMEL_AT49BV512 0x03
-#define ATMEL_AT49F020 0x0B
#define ATMEL_AT49F002N 0x07 /* for AT49F002(N) */
-#define ATMEL_AT49F002NT 0x08 /* for AT49F002(N)T */
+#define ATMEL_AT49F002NT 0x08 /* for AT49F002(N)T */
+#define ATMEL_AT49F020 0x0B
+#define ATMEL_AT49F040 0x13
/* Bright Microelectronics has the same manufacturer ID as Hyundai... */
#define BRIGHT_ID 0xAD /* Bright Microelectronics */
diff --git a/w39.c b/w39.c
index 920a43f..8cc71e8 100644
--- a/w39.c
+++ b/w39.c
@@ -279,3 +279,11 @@ int unlock_w39v080fa(struct flashchip *flash)
return 0;
}
+
+int printlock_at49f(struct flashchip *flash)
+{
+ uint8_t lock = w39_idmode_readb(flash, 0x00002);
+ msg_cdbg("Hardware bootblock lockout is %sactive.\n",
+ (lock & 0x01) ? "" : "not ");
+ return 0;
+}
--
1.7.1
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