/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __LINUX_SERIAL_SCI_H
#define __LINUX_SERIAL_SCI_H
#include <linux/bitops.h>
#include <linux/serial_core.h>
#include <linux/sh_dma.h>
/*
* Generic header for SuperH (H)SCI(F) (used by sh/sh64 and related parts)
*/
/* Serial Control Register (@ = not supported by all parts) */
#define SCSCR_TIE BIT(7) /* Transmit Interrupt Enable */
#define SCSCR_RIE BIT(6) /* Receive Interrupt Enable */
#define SCSCR_TE BIT(5) /* Transmit Enable */
#define SCSCR_RE BIT(4) /* Receive Enable */
#define SCSCR_REIE BIT(3) /* Receive Error Interrupt Enable @ */
#define SCSCR_TOIE BIT(2) /* Timeout Interrupt Enable @ */
#define SCSCR_CKE1 BIT(1) /* Clock Enable 1 */
#define SCSCR_CKE0 BIT(0) /* Clock Enable 0 */
enum {
SCIx_PROBE_REGTYPE,
SCIx_SCI_REGTYPE,
SCIx_IRDA_REGTYPE,
SCIx_SCIFA_REGTYPE,
SCIx_SCIFB_REGTYPE,
SCIx_SH2_SCIF_FIFODATA_REGTYPE,
SCIx_SH3_SCIF_REGTYPE,
SCIx_SH4_SCIF_REGTYPE,
SCIx_SH4_SCIF_BRG_REGTYPE,
SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE,
SCIx_SH4_SCIF_FIFODATA_REGTYPE,
SCIx_SH7705_SCIF_REGTYPE,
SCIx_HSCIF_REGTYPE,
SCIx_NR_REGTYPES,
};
struct plat_sci_port_ops {
void (*init_pins)(struct uart_port *, unsigned int cflag);
};
/*
* Platform device specific platform_data struct
*/
struct plat_sci_port {
unsigned int type; /* SCI / SCIF / IRDA / HSCIF */
upf_t flags; /* UPF_* flags */
unsigned int sampling_rate;
unsigned int scscr; /* SCSCR initialization */
/*
* Platform overrides if necessary, defaults otherwise.
*/
unsigned char regtype;
struct plat_sci_port_ops *ops;
};
#endif /* __LINUX_SERIAL_SCI_H */
