-----Original Message----- From: Sun York-R58495 Sent: Tuesday, July 28, 2015 12:37 AM To: Jain Priyanka-B32167; u-boot@lists.denx.de Subject: Re: [PATCH] mpc85xx/T104xRDB: Remove vbank check redundant code
On 05/17/2015 11:31 PM, Priyanka Jain wrote:
sw variable in checkboard function is storing vbank value which can only take 4-bit value. So check of sw value for if greater than 7 is redundant.
Signed-off-by: Priyanka Jain Priyanka.Jain@freescale.com
board/freescale/t104xrdb/t104xrdb.c | 5 +---- 1 files changed, 1 insertions(+), 4 deletions(-)
diff --git a/board/freescale/t104xrdb/t104xrdb.c b/board/freescale/t104xrdb/t104xrdb.c index 9cd5e15..c34eea6 100644 --- a/board/freescale/t104xrdb/t104xrdb.c +++ b/board/freescale/t104xrdb/t104xrdb.c @@ -35,10 +35,7 @@ int checkboard(void) sw = CPLD_READ(flash_ctl_status); sw = ((sw & CPLD_LBMAP_MASK) >> CPLD_LBMAP_SHIFT);
- if (sw <= 7)
printf("vBank: %d\n", sw);- else
printf("Unsupported Bank=%x\n", sw);
printf("vBank: %d\n", sw);
return 0;
}
Priyanka,
4-bit variable can still have value bigger than 7. Is there other reason you want to remove it?
[Jain Priyanka-B32167] Sorry, Its 3-bit variable. So cannot have value greater than 7. CPLD_LBMAP_MASK is 0x3f and CPLD_LBMAB_SHIFT is of value 3. So it is basically bits sw[5], sw[4], sw[3].
York