nand_spl: nand_boot.c: Remove CONFIG_SYS_NAND_READ_DELAY
There are multiple reasons why this define should be removed:
First it saves some space and therefore fixes a problem we have on
the canyonlands_nand and glacier_nand targets right now.
Second, the define was hackish and would most likely not work on all
board using nand_boot.c. Boards not providing a real dev_ready()
function should implement a board specific function instead.
I checked and it seems, that all boards using nand_boot.c right now
already implement a board specific dev_ready() function. So this
patch should not break any boards and will result in smaller
NAND_SPL images.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Scott Wood <scottwood@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Sughosh Ganu <urwithsughosh@gmail.com>
Cc: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
Tested-by: Sughosh Ganu <urwithsughosh@gmail.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
diff --git a/nand_spl/nand_boot.c b/nand_spl/nand_boot.c
index 06c6f6d..00df2a0 100644
--- a/nand_spl/nand_boot.c
+++ b/nand_spl/nand_boot.c
@@ -22,9 +22,6 @@
#include <nand.h>
#include <asm/io.h>
-#define CONFIG_SYS_NAND_READ_DELAY \
- { volatile int dummy; int i; for (i=0; i<10000; i++) dummy = i; }
-
static int nand_ecc_pos[] = CONFIG_SYS_NAND_ECCPOS;
#if (CONFIG_SYS_NAND_PAGE_SIZE <= 512)
@@ -61,11 +58,8 @@
/*
* Wait a while for the data to be ready
*/
- if (this->dev_ready)
- while (!this->dev_ready(mtd))
- ;
- else
- CONFIG_SYS_NAND_READ_DELAY;
+ while (!this->dev_ready(mtd))
+ ;
return 0;
}
@@ -80,11 +74,8 @@
void (*hwctrl)(struct mtd_info *mtd, int cmd,
unsigned int ctrl) = this->cmd_ctrl;
- if (this->dev_ready)
- while (!this->dev_ready(mtd))
- ;
- else
- CONFIG_SYS_NAND_READ_DELAY;
+ while (!this->dev_ready(mtd))
+ ;
/* Emulate NAND_CMD_READOOB */
if (cmd == NAND_CMD_READOOB) {
@@ -120,11 +111,8 @@
/*
* Wait a while for the data to be ready
*/
- if (this->dev_ready)
- while (!this->dev_ready(mtd))
- ;
- else
- CONFIG_SYS_NAND_READ_DELAY;
+ while (!this->dev_ready(mtd))
+ ;
return 0;
}