openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

mtd: bcm47xxnflash: fix typo in freq calculation 

We are supposed to mask value, not multiply it. Add some comments btw.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
This commit is contained in:
Rafał Miłecki 2014-08-19 09:14:13 +02:00 committed by Brian Norris
parent 024629fdca
commit 785e5e111f
1 changed files with 5 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c
View File

@ -364,11 +364,13 @@ int bcm47xxnflash_ops_bcm4706_init(struct bcm47xxnflash *b47n)
/* Configure wait counters */
if (b47n->cc->status & BCMA_CC_CHIPST_4706_PKG_OPTION) {
freq = 100000000;
/* 400 MHz */
freq = 400000000 / 4;
} else {
freq = bcma_chipco_pll_read(b47n->cc, 4);
freq = (freq * 0xFFF) >> 3;
freq = (freq * 25000000) >> 3;
freq = (freq & 0xFFF) >> 3;
/* Fixed reference clock 25 MHz and m = 2 */
freq = (freq * 25000000 / 2) / 4;
}
clock = freq / 1000000;
w0 = bcm47xxnflash_ops_bcm4706_ns_to_cycle(15, clock);