summaryrefslogtreecommitdiff
path: root/drivers/net/can/c_can/c_can.c
diff options
context:
space:
mode:
authorAlex Shi <alex.shi@linaro.org>2016-07-21 13:58:19 +0800
committerAlex Shi <alex.shi@linaro.org>2016-07-21 13:58:19 +0800
commit74b60e9f6f938d0cd4c7a71e583aee3cc6c5fbba (patch)
tree15cbca70f3f6d7e10da7d82154a78e6ca35dca8c /drivers/net/can/c_can/c_can.c
parentf24f1475658431d60bcd4e6e5de951ba1663dd43 (diff)
parent1d508e233d21a7848cf54d7d03b40dac2d9ea873 (diff)
Merge branch 'linux-linaro-lsk-v4.1' into linux-linaro-lsk-v4.1-rtlsk-v4.1-16.07-rt
Conflicts: mm/swap.c
Diffstat (limited to 'drivers/net/can/c_can/c_can.c')
-rw-r--r--drivers/net/can/c_can/c_can.c38
1 files changed, 31 insertions, 7 deletions
diff --git a/drivers/net/can/c_can/c_can.c b/drivers/net/can/c_can/c_can.c
index 5d214d135332..c076414103d2 100644
--- a/drivers/net/can/c_can/c_can.c
+++ b/drivers/net/can/c_can/c_can.c
@@ -332,9 +332,23 @@ static void c_can_setup_tx_object(struct net_device *dev, int iface,
priv->write_reg(priv, C_CAN_IFACE(MSGCTRL_REG, iface), ctrl);
- for (i = 0; i < frame->can_dlc; i += 2) {
- priv->write_reg(priv, C_CAN_IFACE(DATA1_REG, iface) + i / 2,
- frame->data[i] | (frame->data[i + 1] << 8));
+ if (priv->type == BOSCH_D_CAN) {
+ u32 data = 0, dreg = C_CAN_IFACE(DATA1_REG, iface);
+
+ for (i = 0; i < frame->can_dlc; i += 4, dreg += 2) {
+ data = (u32)frame->data[i];
+ data |= (u32)frame->data[i + 1] << 8;
+ data |= (u32)frame->data[i + 2] << 16;
+ data |= (u32)frame->data[i + 3] << 24;
+ priv->write_reg32(priv, dreg, data);
+ }
+ } else {
+ for (i = 0; i < frame->can_dlc; i += 2) {
+ priv->write_reg(priv,
+ C_CAN_IFACE(DATA1_REG, iface) + i / 2,
+ frame->data[i] |
+ (frame->data[i + 1] << 8));
+ }
}
}
@@ -402,10 +416,20 @@ static int c_can_read_msg_object(struct net_device *dev, int iface, u32 ctrl)
} else {
int i, dreg = C_CAN_IFACE(DATA1_REG, iface);
- for (i = 0; i < frame->can_dlc; i += 2, dreg ++) {
- data = priv->read_reg(priv, dreg);
- frame->data[i] = data;
- frame->data[i + 1] = data >> 8;
+ if (priv->type == BOSCH_D_CAN) {
+ for (i = 0; i < frame->can_dlc; i += 4, dreg += 2) {
+ data = priv->read_reg32(priv, dreg);
+ frame->data[i] = data;
+ frame->data[i + 1] = data >> 8;
+ frame->data[i + 2] = data >> 16;
+ frame->data[i + 3] = data >> 24;
+ }
+ } else {
+ for (i = 0; i < frame->can_dlc; i += 2, dreg++) {
+ data = priv->read_reg(priv, dreg);
+ frame->data[i] = data;
+ frame->data[i + 1] = data >> 8;
+ }
}
}