summaryrefslogtreecommitdiffstats
path: root/drivers/fsi
diff options
context:
space:
mode:
authorEddie James <eajames@linux.vnet.ibm.com>2018-05-08 17:43:32 -0500
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2018-06-12 14:05:34 +1000
commit52b7116e885e95a0d4206cca7f11ef332bb1dd89 (patch)
treee5d217fb7cd2cb69f7a612ef3b7eeffc2d06674f /drivers/fsi
parent26d79b272d388e2180d93d01b4085208c028f79a (diff)
downloadlinux-stable-52b7116e885e95a0d4206cca7f11ef332bb1dd89.tar.gz
linux-stable-52b7116e885e95a0d4206cca7f11ef332bb1dd89.tar.bz2
linux-stable-52b7116e885e95a0d4206cca7f11ef332bb1dd89.zip
fsi: scom: Remove PIB reset during probe
The PIB reset causes problems for the running P9 chip. The reset shouldn't be performed by this driver. Signed-off-by: Eddie James <eajames@linux.vnet.ibm.com> Reviewed-by: Christopher Bostic <cbostic@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Tested-by: Joel Stanley <joel@jms.id.au>
Diffstat (limited to 'drivers/fsi')
-rw-r--r--drivers/fsi/fsi-scom.c8
1 files changed, 0 insertions, 8 deletions
diff --git a/drivers/fsi/fsi-scom.c b/drivers/fsi/fsi-scom.c
index e13353a2fd7c..c8eb5e5b94a7 100644
--- a/drivers/fsi/fsi-scom.c
+++ b/drivers/fsi/fsi-scom.c
@@ -26,15 +26,11 @@
#define FSI_ENGID_SCOM 0x5
-#define SCOM_FSI2PIB_DELAY 50
-
/* SCOM engine register set */
#define SCOM_DATA0_REG 0x00
#define SCOM_DATA1_REG 0x04
#define SCOM_CMD_REG 0x08
-#define SCOM_RESET_REG 0x1C
-#define SCOM_RESET_CMD 0x80000000
#define SCOM_WRITE_CMD 0x80000000
struct scom_device {
@@ -180,7 +176,6 @@ static const struct file_operations scom_fops = {
static int scom_probe(struct device *dev)
{
- uint32_t data;
struct fsi_device *fsi_dev = to_fsi_dev(dev);
struct scom_device *scom;
@@ -197,9 +192,6 @@ static int scom_probe(struct device *dev)
scom->mdev.parent = dev;
list_add(&scom->link, &scom_devices);
- data = cpu_to_be32(SCOM_RESET_CMD);
- fsi_device_write(fsi_dev, SCOM_RESET_REG, &data, sizeof(uint32_t));
-
return misc_register(&scom->mdev);
}