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authorSergey Lapin <slapin@ossfans.org>2008-06-05 11:06:29 +0400
committerJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>2008-07-10 22:50:28 +0200
commitc6457e3b8bc79a97381cf7deffa08f7c5a24f86c (patch)
treeb7484c31084984d78738379c0533640111f027cb /drivers/mtd
parent4109df6f75fc00ab7da56d286ba50149a0d16a69 (diff)
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DataFlash AT45DB021 support
Some boards based on AT91SAM926X-EK use smaller DF chips to keep bootstrap, u-boot and its environment, using NAND or other external storage for kernel and rootfs. This patch adds support for small 1024x263 chip. Signed-off-by: Sergey Lapin <slapin@ossfans.org>
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/dataflash.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/mtd/dataflash.c b/drivers/mtd/dataflash.c
index 8247aa0..a092dc6 100644
--- a/drivers/mtd/dataflash.c
+++ b/drivers/mtd/dataflash.c
@@ -54,6 +54,17 @@ int AT91F_DataflashInit (void)
&dataflash_info[i].Desc);
switch (dfcode) {
+ case AT45DB021:
+ dataflash_info[i].Device.pages_number = 1024;
+ dataflash_info[i].Device.pages_size = 263;
+ dataflash_info[i].Device.page_offset = 9;
+ dataflash_info[i].Device.byte_mask = 0x300;
+ dataflash_info[i].Device.cs = cs[i].cs;
+ dataflash_info[i].Desc.DataFlash_state = IDLE;
+ dataflash_info[i].logical_address = cs[i].addr;
+ dataflash_info[i].id = dfcode;
+ found[i] += dfcode;;
+ break;
case AT45DB161:
dataflash_info[i].Device.pages_number = 4096;
dataflash_info[i].Device.pages_size = 528;
@@ -178,6 +189,9 @@ void dataflash_print_info (void)
if (dataflash_info[i].id != 0) {
printf("DataFlash:");
switch (dataflash_info[i].id) {
+ case AT45DB021:
+ printf("AT45DB021\n");
+ break;
case AT45DB161:
printf("AT45DB161\n");
break;