can: flexcan: mark TX mailbox as TX_INACTIVE
This patch fixes the initialization of the TX mailbox. It is now correctly initialized as TX_INACTIVE not RX_EMPTY. Cc: linux-stable <stable@vger.kernel.org> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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@ -136,6 +136,17 @@
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/* FLEXCAN message buffers */
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#define FLEXCAN_MB_CNT_CODE(x) (((x) & 0xf) << 24)
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#define FLEXCAN_MB_CODE_RX_INACTIVE (0x0 << 24)
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#define FLEXCAN_MB_CODE_RX_EMPTY (0x4 << 24)
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#define FLEXCAN_MB_CODE_RX_FULL (0x2 << 24)
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#define FLEXCAN_MB_CODE_RX_OVERRRUN (0x6 << 24)
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#define FLEXCAN_MB_CODE_RX_RANSWER (0xa << 24)
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#define FLEXCAN_MB_CODE_TX_INACTIVE (0x8 << 24)
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#define FLEXCAN_MB_CODE_TX_ABORT (0x9 << 24)
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#define FLEXCAN_MB_CODE_TX_DATA (0xc << 24)
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#define FLEXCAN_MB_CODE_TX_TANSWER (0xe << 24)
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#define FLEXCAN_MB_CNT_SRR BIT(22)
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#define FLEXCAN_MB_CNT_IDE BIT(21)
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#define FLEXCAN_MB_CNT_RTR BIT(20)
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@ -867,8 +878,8 @@ static int flexcan_chip_start(struct net_device *dev)
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netdev_dbg(dev, "%s: writing ctrl=0x%08x", __func__, reg_ctrl);
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flexcan_write(reg_ctrl, ®s->ctrl);
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/* Abort any pending TX, mark Mailbox as INACTIVE */
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flexcan_write(FLEXCAN_MB_CNT_CODE(0x4),
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/* mark TX mailbox as INACTIVE */
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flexcan_write(FLEXCAN_MB_CODE_TX_INACTIVE,
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®s->cantxfg[FLEXCAN_TX_BUF_ID].can_ctrl);
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/* acceptance mask/acceptance code (accept everything) */
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