From a9c847cb38991a557c767fd02a71bd5fbdd25a95 Mon Sep 17 00:00:00 2001 From: Stefan Roese Date: Wed, 4 May 2011 11:44:14 +0200 Subject: [PATCH] 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 Cc: Scott Wood Cc: Stefano Babic Cc: Sughosh Ganu Cc: Sudhakar Rajashekhara Tested-by: Sughosh Ganu Signed-off-by: Scott Wood --- nand_spl/nand_boot.c | 24 ++++++------------------ 1 file changed, 6 insertions(+), 18 deletions(-) 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 #include -#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 @@ static int nand_command(struct mtd_info *mtd, int block, int page, int offs, u8 /* * 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 @@ static int nand_command(struct mtd_info *mtd, int block, int page, int offs, u8 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 @@ static int nand_command(struct mtd_info *mtd, int block, int page, int offs, u8 /* * 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; }