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 <[EMAIL PROTECTED]>
---
drivers/mtd/dataflash.c | 14 ++++++++++++++
include/dataflash.h | 2 +-
2 files changed, 15 insertions(+), 1 deletions(-)
diff --git a/drivers/mtd/dataflash.c b/drivers/mtd/dataflash.c
index 8247aa0..1730cee 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 = 264;
+ 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;
diff --git a/include/dataflash.h b/include/dataflash.h
index 6fdc4bb..9acd28e 100644
--- a/include/dataflash.h
+++ b/include/dataflash.h
@@ -135,7 +135,8 @@ struct dataflash_addr {
int cs;
};
/*-------------------------------------------------------------------------------------------------*/
+#define AT45DB021 0x14
#define AT45DB161 0x2c
#define AT45DB321 0x34
#define AT45DB642 0x3c
--
1.5.4.1
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