Author: hailfinger
Date: 2009-09-24 00:01:33 +0200 (Thu, 24 Sep 2009)
New Revision: 731
Modified:
trunk/flash.h
trunk/flashchips.c
trunk/jedec.c
trunk/sst_fwhub.c
Log:
Switch SST49LF004A/B to block erase, remove the hack which simulated
(unsupported) chip erase.
Annotate SST49LF004B quirks for TBL#.
Add TEST_OK_PRW which is useful when a PREW chip gets a new erase
routine.
Change a few erase function prototypes to use unsigned int instead of
int.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006(a)gmx.net>
Acked-by: Luc Verhaegen <libv(a)skynet.be>
Modified: trunk/flash.h
===================================================================
--- trunk/flash.h 2009-09-23 21:58:34 UTC (rev 730)
+++ trunk/flash.h 2009-09-23 22:01:33 UTC (rev 731)
@@ -225,6 +225,7 @@
#define TEST_OK_WRITE (1 << 3)
#define TEST_OK_PR (TEST_OK_PROBE | TEST_OK_READ)
#define TEST_OK_PRE (TEST_OK_PROBE | TEST_OK_READ | TEST_OK_ERASE)
+#define TEST_OK_PRW (TEST_OK_PROBE | TEST_OK_READ | TEST_OK_WRITE)
#define TEST_OK_PREW (TEST_OK_PROBE | TEST_OK_READ | TEST_OK_ERASE | TEST_OK_WRITE)
#define TEST_OK_MASK 0x0f
@@ -596,8 +597,8 @@
int probe_jedec(struct flashchip *flash);
int erase_chip_jedec(struct flashchip *flash);
int write_jedec(struct flashchip *flash, uint8_t *buf);
-int erase_sector_jedec(struct flashchip *flash, unsigned int page, int pagesize);
-int erase_block_jedec(struct flashchip *flash, unsigned int page, int blocksize);
+int erase_sector_jedec(struct flashchip *flash, unsigned int page, unsigned int pagesize);
+int erase_block_jedec(struct flashchip *flash, unsigned int page, unsigned int blocksize);
int write_sector_jedec(chipaddr bios, uint8_t *src,
chipaddr dst, unsigned int page_size);
@@ -657,6 +658,7 @@
/* sst_fwhub.c */
int probe_sst_fwhub(struct flashchip *flash);
int erase_sst_fwhub(struct flashchip *flash);
+int erase_sst_fwhub_block(struct flashchip *flash, unsigned int offset, unsigned int page_size);
int write_sst_fwhub(struct flashchip *flash, uint8_t *buf);
/* w39v040c.c */
Modified: trunk/flashchips.c
===================================================================
--- trunk/flashchips.c 2009-09-23 21:58:34 UTC (rev 730)
+++ trunk/flashchips.c 2009-09-23 22:01:33 UTC (rev 731)
@@ -2141,6 +2141,9 @@
},
{
+ /* Contrary to the data sheet, TBL# on the SST49LF004B affects the top 128kB (instead of 64kB)
+ * and is only honored for 64k block erase, but not 4k sector erase.
+ */
.vendor = "SST",
.name = "SST49LF004A/B",
.bustype = CHIP_BUSTYPE_FWH, /* A/A Mux */
@@ -2151,7 +2154,20 @@
.tested = TEST_OK_PREW,
.probe = probe_sst_fwhub,
.probe_timing = 1, /* 150 ns | routine is wrapper to probe_jedec (sst_fwhub.c) */
- .erase = erase_sst_fwhub,
+ .erase = NULL,
+ .block_erasers =
+ {
+ {
+ .eraseblocks = { {4 * 1024, 128} },
+ .block_erase = erase_sector_jedec, /* missing unlock */
+ }, {
+ .eraseblocks = { {64 * 1024, 8} },
+ .block_erase = erase_sst_fwhub_block, /* same as erase_sector_block, but with unlock */
+ }, {
+ .eraseblocks = { {512 * 1024, 1} },
+ .block_erase = NULL, /* AA 55 80 AA 55 10, only in PP mode */
+ },
+ },
.write = write_sst_fwhub,
.read = read_memmapped,
},
Modified: trunk/jedec.c
===================================================================
--- trunk/jedec.c 2009-09-23 21:58:34 UTC (rev 730)
+++ trunk/jedec.c 2009-09-23 22:01:33 UTC (rev 731)
@@ -175,7 +175,7 @@
return 0;
}
-int erase_sector_jedec(struct flashchip *flash, unsigned int page, int pagesize)
+int erase_sector_jedec(struct flashchip *flash, unsigned int page, unsigned int pagesize)
{
chipaddr bios = flash->virtual_memory;
@@ -204,7 +204,7 @@
return 0;
}
-int erase_block_jedec(struct flashchip *flash, unsigned int block, int blocksize)
+int erase_block_jedec(struct flashchip *flash, unsigned int block, unsigned int blocksize)
{
chipaddr bios = flash->virtual_memory;
Modified: trunk/sst_fwhub.c
===================================================================
--- trunk/sst_fwhub.c 2009-09-23 21:58:34 UTC (rev 730)
+++ trunk/sst_fwhub.c 2009-09-23 22:01:33 UTC (rev 731)
@@ -94,7 +94,7 @@
return 1;
}
-int erase_sst_fwhub_block(struct flashchip *flash, int offset, int page_size)
+int erase_sst_fwhub_block(struct flashchip *flash, unsigned int offset, unsigned int page_size)
{
uint8_t blockstatus = clear_sst_fwhub_block_lock(flash, offset);