Merge branch 'common/serial-rework' into sh-latest

1 files changed, 68 insertions, 0 deletions

diff --git a/include/linux/serial_sci.h b/include/linux/serial_sci.h
index a2afc9fbe186..4ca130a90ea5 100644
--- a/include/linux/serial_sci.h
+++ b/include/linux/serial_sci.h
@@ -8,6 +8,8 @@
  * Generic header for SuperH SCI(F) (used by sh/sh64/h8300 and related parts)
  */
 
+#define SCIx_NOT_SUPPORTED	(-1)
+
 enum {
 	SCBRR_ALGO_1,		/* ((clk + 16 * bps) / (16 * bps) - 1) */
 	SCBRR_ALGO_2,		/* ((clk + 16 * bps) / (32 * bps) - 1) */
@@ -25,6 +27,28 @@ enum {
 #define SCSCR_CKE1	(1 << 1)
 #define SCSCR_CKE0	(1 << 0)
 
+/* SCxSR SCI */
+#define SCI_TDRE  0x80
+#define SCI_RDRF  0x40
+#define SCI_ORER  0x20
+#define SCI_FER   0x10
+#define SCI_PER   0x08
+#define SCI_TEND  0x04
+
+#define SCI_DEFAULT_ERROR_MASK (SCI_PER | SCI_FER)
+
+/* SCxSR SCIF */
+#define SCIF_ER    0x0080
+#define SCIF_TEND  0x0040
+#define SCIF_TDFE  0x0020
+#define SCIF_BRK   0x0010
+#define SCIF_FER   0x0008
+#define SCIF_PER   0x0004
+#define SCIF_RDF   0x0002
+#define SCIF_DR    0x0001
+
+#define SCIF_DEFAULT_ERROR_MASK (SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK)
+
 /* Offsets into the sci_port->irqs array */
 enum {
 	SCIx_ERI_IRQ,
@@ -34,6 +58,22 @@ enum {
 	SCIx_NR_IRQS,
 };
 
+enum {
+	SCIx_PROBE_REGTYPE,
+
+	SCIx_SCI_REGTYPE,
+	SCIx_IRDA_REGTYPE,
+	SCIx_SCIFA_REGTYPE,
+	SCIx_SCIFB_REGTYPE,
+	SCIx_SH3_SCIF_REGTYPE,
+	SCIx_SH4_SCIF_REGTYPE,
+	SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
+	SCIx_SH4_SCIF_FIFODATA_REGTYPE,
+	SCIx_SH7705_SCIF_REGTYPE,
+
+	SCIx_NR_REGTYPES,
+};
+
 #define SCIx_IRQ_MUXED(irq)		\
 {					\
 	[SCIx_ERI_IRQ]	= (irq),	\
@@ -42,8 +82,24 @@ enum {
 	[SCIx_BRI_IRQ]	= (irq),	\
 }
 
+/*
+ * SCI register subset common for all port types.
+ * Not all registers will exist on all parts.
+ */
+enum {
+	SCSMR, SCBRR, SCSCR, SCxSR,
+	SCFCR, SCFDR, SCxTDR, SCxRDR,
+	SCLSR, SCTFDR, SCRFDR, SCSPTR,
+
+	SCIx_NR_REGS,
+};
+
 struct device;
 
+struct plat_sci_port_ops {
+	void (*init_pins)(struct uart_port *, unsigned int cflag);
+};
+
 /*
  * Platform device specific platform_data struct
  */
@@ -56,6 +112,18 @@ struct plat_sci_port {
 	unsigned int	scbrr_algo_id;		/* SCBRR calculation algo */
 	unsigned int	scscr;			/* SCSCR initialization */
 
+	/*
+	 * Platform overrides if necessary, defaults otherwise.
+	 */
+	int		overrun_bit;
+	unsigned int	error_mask;
+
+	int		port_reg;
+	unsigned char	regshift;
+	unsigned char	regtype;
+
+	struct plat_sci_port_ops	*ops;
+
 	struct device	*dma_dev;
 
 	unsigned int	dma_slave_tx;