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authorIngo Molnar2013-11-01 08:10:58 +0100
committerIngo Molnar2013-11-01 08:24:41 +0100
commitfb10d5b7efbcc0aa9e46a9aa5ad86772c7bacb9a (patch)
treeea284fe7b9c17a85b8d3c4ba999d6e26d51a12f6 /drivers/net/can/flexcan.c
parentf9f9ffc237dd924f048204e8799da74f9ecf40cf (diff)
parent52469b4fcd4fc433ffc78cec4cf94368e9052890 (diff)
Merge branch 'linus' into sched/core
Resolve cherry-picking conflicts: Conflicts: mm/huge_memory.c mm/memory.c mm/mprotect.c See this upstream merge commit for more details: 52469b4fcd4f Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/net/can/flexcan.c')
-rw-r--r--drivers/net/can/flexcan.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index 3f21142138b7..8f5ce747feb5 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -62,7 +62,7 @@
#define FLEXCAN_MCR_BCC BIT(16)
#define FLEXCAN_MCR_LPRIO_EN BIT(13)
#define FLEXCAN_MCR_AEN BIT(12)
-#define FLEXCAN_MCR_MAXMB(x) ((x) & 0xf)
+#define FLEXCAN_MCR_MAXMB(x) ((x) & 0x1f)
#define FLEXCAN_MCR_IDAM_A (0 << 8)
#define FLEXCAN_MCR_IDAM_B (1 << 8)
#define FLEXCAN_MCR_IDAM_C (2 << 8)
@@ -735,9 +735,11 @@ static int flexcan_chip_start(struct net_device *dev)
*
*/
reg_mcr = flexcan_read(&regs->mcr);
+ reg_mcr &= ~FLEXCAN_MCR_MAXMB(0xff);
reg_mcr |= FLEXCAN_MCR_FRZ | FLEXCAN_MCR_FEN | FLEXCAN_MCR_HALT |
FLEXCAN_MCR_SUPV | FLEXCAN_MCR_WRN_EN |
- FLEXCAN_MCR_IDAM_C | FLEXCAN_MCR_SRX_DIS;
+ FLEXCAN_MCR_IDAM_C | FLEXCAN_MCR_SRX_DIS |
+ FLEXCAN_MCR_MAXMB(FLEXCAN_TX_BUF_ID);
netdev_dbg(dev, "%s: writing mcr=0x%08x", __func__, reg_mcr);
flexcan_write(reg_mcr, &regs->mcr);
@@ -771,6 +773,10 @@ static int flexcan_chip_start(struct net_device *dev)
netdev_dbg(dev, "%s: writing ctrl=0x%08x", __func__, reg_ctrl);
flexcan_write(reg_ctrl, &regs->ctrl);
+ /* Abort any pending TX, mark Mailbox as INACTIVE */
+ flexcan_write(FLEXCAN_MB_CNT_CODE(0x4),
+ &regs->cantxfg[FLEXCAN_TX_BUF_ID].can_ctrl);
+
/* acceptance mask/acceptance code (accept everything) */
flexcan_write(0x0, &regs->rxgmask);
flexcan_write(0x0, &regs->rx14mask);
@@ -979,9 +985,9 @@ static void unregister_flexcandev(struct net_device *dev)
}
static const struct of_device_id flexcan_of_match[] = {
- { .compatible = "fsl,p1010-flexcan", .data = &fsl_p1010_devtype_data, },
- { .compatible = "fsl,imx28-flexcan", .data = &fsl_imx28_devtype_data, },
{ .compatible = "fsl,imx6q-flexcan", .data = &fsl_imx6q_devtype_data, },
+ { .compatible = "fsl,imx28-flexcan", .data = &fsl_imx28_devtype_data, },
+ { .compatible = "fsl,p1010-flexcan", .data = &fsl_p1010_devtype_data, },
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(of, flexcan_of_match);