diff options
| author | Rafał Miłecki <zajec5@gmail.com> | 2014-08-19 09:14:13 +0200 |
|---|---|---|
| committer | Brian Norris <computersforpeace@gmail.com> | 2014-09-17 23:18:50 -0700 |
| commit | 785e5e111f2187ea3e6f4035f6009da62dd5c043 (patch) | |
| tree | 0a0918471beaf617031f4e23aeab0f2ff0a0d4f8 | |
| parent | 024629fdca1bbb44a25d40c2362a878a7a67ce3b (diff) | |
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>
| -rw-r--r-- | drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c b/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c index b2ab373c9eef..dc204f3a47ed 100644 --- a/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c +++ b/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c @@ -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); |