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

reset: add socfpga_reset_status 

Populate the reset_status callback for SOCFPGA.

Signed-off-by: Alan Tull <atull@opensource.altera.com>
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
This commit is contained in:
Dinh Nguyen 2014-11-03 16:33:05 -06:00 committed by Philipp Zabel
parent 1a5f77d395
commit f200890f22
1 changed files with 15 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
drivers/reset/reset-socfpga.c
View File

@ -76,9 +76,24 @@ static int socfpga_reset_deassert(struct reset_controller_dev *rcdev,
return 0;
}
static int socfpga_reset_status(struct reset_controller_dev *rcdev,
unsigned long id)
{
struct socfpga_reset_data *data = container_of(rcdev,
struct socfpga_reset_data, rcdev);
int bank = id / BITS_PER_LONG;
int offset = id % BITS_PER_LONG;
u32 reg;
reg = readl(data->membase + OFFSET_MODRST + (bank * NR_BANKS));
return !(reg & BIT(offset));
}
static struct reset_control_ops socfpga_reset_ops = {
.assert = socfpga_reset_assert,
.deassert = socfpga_reset_deassert,
.status = socfpga_reset_status,
};
static int socfpga_reset_probe(struct platform_device *pdev)