openwrt/target/linux/layerscape/patches-5.4/802-can-0023-can-flexcan-add-imx8qm-support.patch

From 7ff112c7b144fb084f28f944d7021cd04acabecd Mon Sep 17 00:00:00 2001
From: Joakim Zhang <qiangqing.zhang@nxp.com>
Date: Fri, 12 Jul 2019 08:02:59 +0000
Subject: [PATCH] can: flexcan: add imx8qm support

The Flexcan on i.MX8QM supports CAN FD protocol.

Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 drivers/net/can/flexcan.c | 26 +++++++++++++++++---------
 1 file changed, 17 insertions(+), 9 deletions(-)

--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -200,15 +200,16 @@
 /* FLEXCAN hardware feature flags
  *
  * Below is some version info we got:
- *    SOC   Version   IP-Version  Glitch- [TR]WRN_INT IRQ Err Memory err RTR re-
- *                                Filter? connected?  Passive detection  ception in MB
- *   MX25  FlexCAN2  03.00.00.00     no        no        no       no        no
- *   MX28  FlexCAN2  03.00.04.00    yes       yes        no       no        no
- *   MX35  FlexCAN2  03.00.00.00     no        no        no       no        no
- *   MX53  FlexCAN2  03.00.00.00    yes        no        no       no        no
- *   MX6s  FlexCAN3  10.00.12.00    yes       yes        no       no       yes
- *   VF610 FlexCAN3  ?               no       yes        no      yes       yes?
- * LS1021A FlexCAN2  03.00.04.00     no       yes        no       no       yes
+ *    SOC   Version   IP-Version  Glitch- [TR]WRN_INT IRQ Err Memory err RTR rece-   FD Mode
+ *                                Filter? connected?  Passive detection  ption in MB Supported?
+ *   MX25  FlexCAN2  03.00.00.00     no        no        no       no        no           no
+ *   MX28  FlexCAN2  03.00.04.00    yes       yes        no       no        no           no
+ *   MX35  FlexCAN2  03.00.00.00     no        no        no       no        no           no
+ *   MX53  FlexCAN2  03.00.00.00    yes        no        no       no        no           no
+ *   MX6s  FlexCAN3  10.00.12.00    yes       yes        no       no       yes           no
+ *  MX8QM  FlexCAN3  03.00.23.00    yes       yes        no       no       yes          yes
+ *   VF610 FlexCAN3  ?               no       yes        no      yes       yes?          no
+ * LS1021A FlexCAN2  03.00.04.00     no       yes        no       no       yes           no
  *
  * Some SOCs do not have the RX_WARN & TX_WARN interrupt line connected.
  */
@@ -347,6 +348,12 @@ static const struct flexcan_devtype_data
 		FLEXCAN_QUIRK_SETUP_STOP_MODE,
 };
 
+static struct flexcan_devtype_data fsl_imx8qm_devtype_data = {
+	.quirks = FLEXCAN_QUIRK_DISABLE_RXFG | FLEXCAN_QUIRK_ENABLE_EACEN_RRS |
+		FLEXCAN_QUIRK_USE_OFF_TIMESTAMP | FLEXCAN_QUIRK_BROKEN_PERR_STATE |
+		FLEXCAN_QUIRK_TIMESTAMP_SUPPORT_FD,
+};
+
 static const struct flexcan_devtype_data fsl_vf610_devtype_data = {
 	.quirks = FLEXCAN_QUIRK_DISABLE_RXFG | FLEXCAN_QUIRK_ENABLE_EACEN_RRS |
 		FLEXCAN_QUIRK_DISABLE_MECR | FLEXCAN_QUIRK_USE_OFF_TIMESTAMP |
@@ -1760,6 +1767,7 @@ out_put_node:
 }
 
 static const struct of_device_id flexcan_of_match[] = {
+	{ .compatible = "fsl,imx8qm-flexcan", .data = &fsl_imx8qm_devtype_data, },
 	{ .compatible = "fsl,imx6q-flexcan", .data = &fsl_imx6q_devtype_data, },
 	{ .compatible = "fsl,imx28-flexcan", .data = &fsl_imx28_devtype_data, },
 	{ .compatible = "fsl,imx53-flexcan", .data = &fsl_imx25_devtype_data, },