summaryrefslogtreecommitdiff
path: root/drivers/net/can/flexcan.c
diff options
context:
space:
mode:
authorArnd Bergmann <arnd@arndb.de>2012-11-15 17:27:43 +0100
committerArnd Bergmann <arnd@arndb.de>2012-11-15 17:27:43 +0100
commit12480c2e53d355223cf6884ed1f56e6ac9b7c21f (patch)
treec244c5b4f265dc38f7658fbe5714ba2c402aef28 /drivers/net/can/flexcan.c
parent6c8e94a57c30e31d0807f038b4f98b659fd67776 (diff)
parent936407358759adb302df93ab61fa68141897270c (diff)
Merge tag 'omap-for-v3.8/fixes-non-critical-v4-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/fixes-non-critical
From Tony Lindgren <tony@atomide.com>: Non critical omap fixes that were not considered urgent for the -rc cycle. * tag 'omap-for-v3.8/fixes-non-critical-v4-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (645 commits) ARM: OMAP4: PM: fix errata handling when CONFIG_PM=n ARM: OMAP4: retrigger localtimers after re-enabling gic ARM: OMAP4460: Workaround for ROM bug because of CA9 r2pX GIC control register change. ARM: OMAP4: PM: add errata support Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/net/can/flexcan.c')
-rw-r--r--drivers/net/can/flexcan.c19
1 files changed, 16 insertions, 3 deletions
diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index c78ecfca1e45..a412bf6d73ef 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -144,9 +144,22 @@
#define FLEXCAN_MB_CODE_MASK (0xf0ffffff)
-/* FLEXCAN hardware feature flags */
+/*
+ * FLEXCAN hardware feature flags
+ *
+ * Below is some version info we got:
+ * SOC Version IP-Version Glitch- [TR]WRN_INT
+ * Filter? connected?
+ * MX25 FlexCAN2 03.00.00.00 no no
+ * MX28 FlexCAN2 03.00.04.00 yes yes
+ * MX35 FlexCAN2 03.00.00.00 no no
+ * MX53 FlexCAN2 03.00.00.00 yes no
+ * MX6s FlexCAN3 10.00.12.00 yes yes
+ *
+ * Some SOCs do not have the RX_WARN & TX_WARN interrupt line connected.
+ */
#define FLEXCAN_HAS_V10_FEATURES BIT(1) /* For core version >= 10 */
-#define FLEXCAN_HAS_BROKEN_ERR_STATE BIT(2) /* Broken error state handling */
+#define FLEXCAN_HAS_BROKEN_ERR_STATE BIT(2) /* [TR]WRN_INT not connected */
/* Structure of the message buffer */
struct flexcan_mb {
@@ -205,7 +218,7 @@ static struct flexcan_devtype_data fsl_p1010_devtype_data = {
};
static struct flexcan_devtype_data fsl_imx28_devtype_data;
static struct flexcan_devtype_data fsl_imx6q_devtype_data = {
- .features = FLEXCAN_HAS_V10_FEATURES | FLEXCAN_HAS_BROKEN_ERR_STATE,
+ .features = FLEXCAN_HAS_V10_FEATURES,
};
static const struct can_bittiming_const flexcan_bittiming_const = {