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Re: Flash driver for SST39VF080 and SST39VF016
On Donnerstag, 30. Oktober 2003 20:36, Andrew Lunn wrote:
> On Thu, Oct 02, 2003 at 04:13:42PM +0200, Roland Ca?ebohm wrote:
> > Attached is a flash driver for SST39VF080 and SST39VF016 cloned from the
> > at29xxxx driver.
>
> A question about naming. We already have a 39vf400 driver. You have
> named your new driver 39vfxxx and it support 080 and 016. Would it be
> better to name it 39vf0xx? How generic is the driver? Could it in
> theory support all of xxx, including the 400 or only 0xx?
>
> Thanks
> Andrew
I have attached an additional patch which includes support for
39vf400 taken values from the 39vf400 driver, but I can't test
it because I haven't got hardware with a 39vf400 flash.
But I think in theory it should work.
Best regards,
Roland
--
___________________________________________________
VS Vision Systems GmbH, Industrial Image Processing
Dipl.-Ing. Roland Caßebohm
Aspelohe 27A, D-22848 Norderstedt, Germany
http://www.visionsystems.de
___________________________________________________
Index: ecos.db
===================================================================
RCS file: /home/cassebohm/net/USERS/CVSROOT/VSprojects/ecos/packages/ecos.db,v
retrieving revision 1.1.1.1.2.6
diff -u -5 -p -r1.1.1.1.2.6 ecos.db
--- ecos.db 21 Oct 2003 16:30:59 -0000 1.1.1.1.2.6
+++ ecos.db 31 Oct 2003 09:23:34 -0000
@@ -529,12 +529,12 @@ package CYGPKG_DEVS_FLASH_SST_39VFXXX {
directory devs/flash/sst/39vfxxx
script flash_sst_39vfxxx.cdl
hardware
description "
This package contains hardware support for SST 39VFxxx
- flash memory devices. Until now it supports SST 39VF080
- and 39VF016 devices."
+ flash memory devices. Until now it supports SST 39VF080,
+ 39VF016 and 39VF400 devices."
}
package CYGPKG_DEVS_FLASH_INTEL_28FXXX {
alias { "Generic FLASH memory support for Intel 28Fxxx Flash parts" flashfile }
directory devs/flash/intel/28fxxx
Index: devs/flash/sst/39vfxxx/current/ChangeLog
===================================================================
RCS file: /home/cassebohm/net/USERS/CVSROOT/VSprojects/ecos/packages/devs/flash/sst/39vfxxx/current/Attic/ChangeLog,v
retrieving revision 1.1.2.2
diff -u -5 -p -r1.1.2.2 ChangeLog
--- devs/flash/sst/39vfxxx/current/ChangeLog 2 Oct 2003 13:43:16 -0000 1.1.2.2
+++ devs/flash/sst/39vfxxx/current/ChangeLog 31 Oct 2003 09:19:46 -0000
@@ -1,10 +1,10 @@
2003-10-02 Roland Caßebohm <r.cassebohm@visionsystems.de>
* include/flash_sst_39vfxxx.inl:
* cdl/flash_sst_39vfxxx.cdl: New package cloned from at29xxxx driver.
- Supported devices: SST39VF080 and SST39VF016.
+ Supported devices: SST39VF080, SST39VF016 and SST39VF400.
//===========================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
Index: devs/flash/sst/39vfxxx/current/include/flash_sst_39vfxxx.inl
===================================================================
RCS file: /home/cassebohm/net/USERS/CVSROOT/VSprojects/ecos/packages/devs/flash/sst/39vfxxx/current/include/Attic/flash_sst_39vfxxx.inl,v
retrieving revision 1.1.2.2
diff -u -5 -p -r1.1.2.2 flash_sst_39vfxxx.inl
--- devs/flash/sst/39vfxxx/current/include/flash_sst_39vfxxx.inl 2 Oct 2003 13:43:16 -0000 1.1.2.2
+++ devs/flash/sst/39vfxxx/current/include/flash_sst_39vfxxx.inl 31 Oct 2003 09:26:09 -0000
@@ -104,10 +104,19 @@
# define CYGNUM_FLASH_WIDTH (8)
# define CYGNUM_FLASH_BLANK (1)
# define CYGNUM_FLASH_ID_MANUFACTURER FLASHWORD(0xBF)
# define CYGNUM_FLASH_ID_DEVICE FLASHWORD(0xD9)
#endif
+#ifdef CYGPKG_DEVS_FLASH_SST_39VF400
+# define FLASH_BLOCK_SIZE (0x1000*CYGNUM_FLASH_INTERLEAVE)
+# define FLASH_NUM_REGIONS (0x80000/FLASH_BLOCK_SIZE)
+# define CYGNUM_FLASH_BASE_MASK (0xFFF80000u) // 512kB devices
+# define CYGNUM_FLASH_WIDTH (16)
+# define CYGNUM_FLASH_BLANK (1)
+# define CYGNUM_FLASH_ID_MANUFACTURER FLASHWORD(0x00BF)
+# define CYGNUM_FLASH_ID_DEVICE FLASHWORD(0x2780)
+#endif
#define FLASH_DEVICE_SIZE (FLASH_BLOCK_SIZE*FLASH_NUM_REGIONS)
#define CYGNUM_FLASH_DEVICES (CYGNUM_FLASH_INTERLEAVE*CYGNUM_FLASH_SERIES)
//----------------------------------------------------------------------------