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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/serial/sh-sci.h
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/serial/sh-sci.h')
-rw-r--r--drivers/serial/sh-sci.h573
1 files changed, 573 insertions, 0 deletions
diff --git a/drivers/serial/sh-sci.h b/drivers/serial/sh-sci.h
new file mode 100644
index 000000000000..2892169eff05
--- /dev/null
+++ b/drivers/serial/sh-sci.h
@@ -0,0 +1,573 @@
+/* $Id: sh-sci.h,v 1.4 2004/02/19 16:43:56 lethal Exp $
+ *
+ * linux/drivers/serial/sh-sci.h
+ *
+ * SuperH on-chip serial module support. (SCI with no FIFO / with FIFO)
+ * Copyright (C) 1999, 2000 Niibe Yutaka
+ * Copyright (C) 2000 Greg Banks
+ * Copyright (C) 2002, 2003 Paul Mundt
+ * Modified to support multiple serial ports. Stuart Menefy (May 2000).
+ * Modified to support SH7300(SH-Mobile) SCIF. Takashi Kusuda (Jun 2003).
+ * Modified to support H8/300 Series Yoshinori Sato (Feb 2004).
+ */
+#include <linux/config.h>
+#include <linux/serial_core.h>
+
+#if defined(__H8300H__) || defined(__H8300S__)
+#include <asm/gpio.h>
+#if defined(CONFIG_H83007) || defined(CONFIG_H83068)
+#include <asm/regs306x.h>
+#endif
+#if defined(CONFIG_H8S2678)
+#include <asm/regs267x.h>
+#endif
+#endif
+
+/* Offsets into the sci_port->irqs array */
+#define SCIx_ERI_IRQ 0
+#define SCIx_RXI_IRQ 1
+#define SCIx_TXI_IRQ 2
+
+/* ERI, RXI, TXI, BRI */
+#define SCI_IRQS { 23, 24, 25, 0 }
+#define SH3_SCIF_IRQS { 56, 57, 59, 58 }
+#define SH3_IRDA_IRQS { 52, 53, 55, 54 }
+#define SH4_SCIF_IRQS { 40, 41, 43, 42 }
+#define STB1_SCIF1_IRQS {23, 24, 26, 25 }
+#define SH7760_SCIF0_IRQS { 52, 53, 55, 54 }
+#define SH7760_SCIF1_IRQS { 72, 73, 75, 74 }
+#define SH7760_SCIF2_IRQS { 76, 77, 79, 78 }
+#define SH7300_SCIF0_IRQS {80, 80, 80, 80 }
+#define SH73180_SCIF_IRQS {80, 81, 83, 82 }
+#define H8300H_SCI_IRQS0 {52, 53, 54, 0 }
+#define H8300H_SCI_IRQS1 {56, 57, 58, 0 }
+#define H8300H_SCI_IRQS2 {60, 61, 62, 0 }
+#define H8S_SCI_IRQS0 {88, 89, 90, 0 }
+#define H8S_SCI_IRQS1 {92, 93, 94, 0 }
+#define H8S_SCI_IRQS2 {96, 97, 98, 0 }
+#define SH5_SCIF_IRQS {39, 40, 42, 0 }
+
+#if defined(CONFIG_CPU_SUBTYPE_SH7708)
+# define SCI_NPORTS 1
+# define SCSPTR 0xffffff7c /* 8 bit */
+# define SCSCR_INIT(port) 0x30 /* TIE=0,RIE=0,TE=1,RE=1 */
+# define SCI_ONLY
+#elif defined(CONFIG_CPU_SUBTYPE_SH7707) || defined(CONFIG_CPU_SUBTYPE_SH7709)
+# define SCI_NPORTS 3
+# define SCPCR 0xA4000116 /* 16 bit SCI and SCIF */
+# define SCPDR 0xA4000136 /* 8 bit SCI and SCIF */
+# define SCSCR_INIT(port) 0x30 /* TIE=0,RIE=0,TE=1,RE=1 */
+# define SCI_AND_SCIF
+#elif defined(CONFIG_CPU_SUBTYPE_SH7705)
+# define SCIF0 0xA4400000
+# define SCIF2 0xA4410000
+# define SCSMR_Ir 0xA44A0000
+# define IRDA_SCIF SCIF0
+# define SCI_NPORTS 2
+# define SCPCR 0xA4000116
+# define SCPDR 0xA4000136
+
+/* Set the clock source,
+ * SCIF2 (0xA4410000) -> External clock, SCK pin used as clock input
+ * SCIF0 (0xA4400000) -> Internal clock, SCK pin as serial clock output
+ */
+# define SCSCR_INIT(port) (port->mapbase == SCIF2) ? 0xF3 : 0xF0
+# define SCIF_ONLY
+#elif defined(CONFIG_SH_RTS7751R2D)
+# define SCI_NPORTS 1
+# define SCSPTR1 0xffe0001c /* 8 bit SCI */
+# define SCSPTR2 0xFFE80020 /* 16 bit SCIF */
+# define SCIF_ORER 0x0001 /* overrun error bit */
+# define SCSCR_INIT(port) 0x3a /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
+# define SCIF_ONLY
+#elif defined(CONFIG_CPU_SUBTYPE_SH7750) || defined(CONFIG_CPU_SUBTYPE_SH7751)
+# define SCI_NPORTS 2
+# define SCSPTR1 0xffe0001c /* 8 bit SCI */
+# define SCSPTR2 0xFFE80020 /* 16 bit SCIF */
+# define SCIF_ORER 0x0001 /* overrun error bit */
+# define SCSCR_INIT(port) (((port)->type == PORT_SCI) ? \
+ 0x30 /* TIE=0,RIE=0,TE=1,RE=1 */ : \
+ 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */ )
+# define SCI_AND_SCIF
+#elif defined(CONFIG_CPU_SUBTYPE_SH7760)
+# define SCI_NPORTS 3
+# define SCSPTR0 0xfe600000 /* 16 bit SCIF */
+# define SCSPTR1 0xfe610000 /* 16 bit SCIF */
+# define SCSPTR2 0xfe620000 /* 16 bit SCIF */
+# define SCIF_ORER 0x0001 /* overrun error bit */
+# define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
+# define SCIF_ONLY
+#elif defined(CONFIG_CPU_SUBTYPE_SH7300)
+# define SCI_NPORTS 1
+# define SCPCR 0xA4050116 /* 16 bit SCIF */
+# define SCPDR 0xA4050136 /* 16 bit SCIF */
+# define SCSCR_INIT(port) 0x0030 /* TIE=0,RIE=0,TE=1,RE=1 */
+# define SCIF_ONLY
+#elif defined(CONFIG_CPU_SUBTYPE_SH73180)
+# define SCI_NPORTS 1
+# define SCPDR 0xA4050138 /* 16 bit SCIF */
+# define SCSPTR2 SCPDR
+# define SCIF_ORER 0x0001 /* overrun error bit */
+# define SCSCR_INIT(port) 0x0038 /* TIE=0,RIE=0,TE=1,RE=1 */
+# define SCIF_ONLY
+#elif defined(CONFIG_CPU_SUBTYPE_SH4_202)
+# define SCI_NPORTS 1
+# define SCSPTR2 0xffe80020 /* 16 bit SCIF */
+# define SCIF_ORER 0x0001 /* overrun error bit */
+# define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
+# define SCIF_ONLY
+#elif defined(CONFIG_CPU_SUBTYPE_ST40STB1)
+# define SCI_NPORTS 2
+# define SCSPTR1 0xffe00020 /* 16 bit SCIF */
+# define SCSPTR2 0xffe80020 /* 16 bit SCIF */
+# define SCIF_ORER 0x0001 /* overrun error bit */
+# define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
+# define SCIF_ONLY
+#elif defined(CONFIG_CPU_SUBTYPE_SH5_101) || defined(CONFIG_CPU_SUBTYPE_SH5_103)
+# include <asm/hardware.h>
+# define SCIF_BASE_ADDR 0x01030000
+# define SCIF_ADDR_SH5 PHYS_PERIPHERAL_BLOCK+SCIF_BASE_ADDR
+# define SCIF_PTR2_OFFS 0x0000020
+# define SCIF_LSR2_OFFS 0x0000024
+# define SCI_NPORTS 1
+# define SCI_INIT { \
+ { {}, PORT_SCIF, 0, \
+ SH5_SCIF_IRQS, sci_init_pins_scif } \
+}
+# define SCSPTR2 ((port->mapbase)+SCIF_PTR2_OFFS) /* 16 bit SCIF */
+# define SCLSR2 ((port->mapbase)+SCIF_LSR2_OFFS) /* 16 bit SCIF */
+# define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0,
+ TE=1,RE=1,REIE=1 */
+# define SCIF_ONLY
+#elif defined(CONFIG_H83007) || defined(CONFIG_H83068)
+# define SCI_NPORTS 3
+# define SCSCR_INIT(port) 0x30 /* TIE=0,RIE=0,TE=1,RE=1 */
+# define SCI_ONLY
+# define H8300_SCI_DR(ch) *(volatile char *)(P1DR + h8300_sci_pins[ch].port)
+#elif defined(CONFIG_H8S2678)
+# define SCI_NPORTS 3
+# define SCSCR_INIT(port) 0x30 /* TIE=0,RIE=0,TE=1,RE=1 */
+# define SCI_ONLY
+# define H8300_SCI_DR(ch) *(volatile char *)(P1DR + h8300_sci_pins[ch].port)
+#else
+# error CPU subtype not defined
+#endif
+
+/* SCSCR */
+#define SCI_CTRL_FLAGS_TIE 0x80 /* all */
+#define SCI_CTRL_FLAGS_RIE 0x40 /* all */
+#define SCI_CTRL_FLAGS_TE 0x20 /* all */
+#define SCI_CTRL_FLAGS_RE 0x10 /* all */
+#if defined(CONFIG_CPU_SUBTYPE_SH7750) || defined(CONFIG_CPU_SUBTYPE_SH7751)
+#define SCI_CTRL_FLAGS_REIE 0x08 /* 7750 SCIF */
+#else
+#define SCI_CTRL_FLAGS_REIE 0
+#endif
+/* SCI_CTRL_FLAGS_MPIE 0x08 * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
+/* SCI_CTRL_FLAGS_TEIE 0x04 * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
+/* SCI_CTRL_FLAGS_CKE1 0x02 * all */
+/* SCI_CTRL_FLAGS_CKE0 0x01 * 7707 SCI/SCIF, 7708 SCI, 7709 SCI/SCIF, 7750 SCI */
+
+/* SCxSR SCI */
+#define SCI_TDRE 0x80 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
+#define SCI_RDRF 0x40 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
+#define SCI_ORER 0x20 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
+#define SCI_FER 0x10 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
+#define SCI_PER 0x08 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
+#define SCI_TEND 0x04 /* 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
+/* SCI_MPB 0x02 * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
+/* SCI_MPBT 0x01 * 7707 SCI, 7708 SCI, 7709 SCI, 7750 SCI */
+
+#define SCI_ERRORS ( SCI_PER | SCI_FER | SCI_ORER)
+
+/* SCxSR SCIF */
+#define SCIF_ER 0x0080 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
+#define SCIF_TEND 0x0040 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
+#define SCIF_TDFE 0x0020 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
+#define SCIF_BRK 0x0010 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
+#define SCIF_FER 0x0008 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
+#define SCIF_PER 0x0004 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
+#define SCIF_RDF 0x0002 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
+#define SCIF_DR 0x0001 /* 7705 SCIF, 7707 SCIF, 7709 SCIF, 7750 SCIF */
+
+#if defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7705)
+#define SCIF_ORER 0x0200
+#define SCIF_ERRORS ( SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK | SCIF_ORER)
+#define SCIF_RFDC_MASK 0x007f
+#define SCIF_TXROOM_MAX 64
+#else
+#define SCIF_ERRORS ( SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK)
+#define SCIF_RFDC_MASK 0x001f
+#define SCIF_TXROOM_MAX 16
+#endif
+
+#if defined(SCI_ONLY)
+# define SCxSR_TEND(port) SCI_TEND
+# define SCxSR_ERRORS(port) SCI_ERRORS
+# define SCxSR_RDxF(port) SCI_RDRF
+# define SCxSR_TDxE(port) SCI_TDRE
+# define SCxSR_ORER(port) SCI_ORER
+# define SCxSR_FER(port) SCI_FER
+# define SCxSR_PER(port) SCI_PER
+# define SCxSR_BRK(port) 0x00
+# define SCxSR_RDxF_CLEAR(port) 0xbc
+# define SCxSR_ERROR_CLEAR(port) 0xc4
+# define SCxSR_TDxE_CLEAR(port) 0x78
+# define SCxSR_BREAK_CLEAR(port) 0xc4
+#elif defined(SCIF_ONLY)
+# define SCxSR_TEND(port) SCIF_TEND
+# define SCxSR_ERRORS(port) SCIF_ERRORS
+# define SCxSR_RDxF(port) SCIF_RDF
+# define SCxSR_TDxE(port) SCIF_TDFE
+#if defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7705)
+# define SCxSR_ORER(port) SCIF_ORER
+#else
+# define SCxSR_ORER(port) 0x0000
+#endif
+# define SCxSR_FER(port) SCIF_FER
+# define SCxSR_PER(port) SCIF_PER
+# define SCxSR_BRK(port) SCIF_BRK
+#if defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7705)
+# define SCxSR_RDxF_CLEAR(port) (sci_in(port,SCxSR)&0xfffc)
+# define SCxSR_ERROR_CLEAR(port) (sci_in(port,SCxSR)&0xfd73)
+# define SCxSR_TDxE_CLEAR(port) (sci_in(port,SCxSR)&0xffdf)
+# define SCxSR_BREAK_CLEAR(port) (sci_in(port,SCxSR)&0xffe3)
+#else
+/* SH7705 can also use this, clearing is same between 7705 and 7709 and 7300 */
+# define SCxSR_RDxF_CLEAR(port) 0x00fc
+# define SCxSR_ERROR_CLEAR(port) 0x0073
+# define SCxSR_TDxE_CLEAR(port) 0x00df
+# define SCxSR_BREAK_CLEAR(port) 0x00e3
+#endif
+#else
+# define SCxSR_TEND(port) (((port)->type == PORT_SCI) ? SCI_TEND : SCIF_TEND)
+# define SCxSR_ERRORS(port) (((port)->type == PORT_SCI) ? SCI_ERRORS : SCIF_ERRORS)
+# define SCxSR_RDxF(port) (((port)->type == PORT_SCI) ? SCI_RDRF : SCIF_RDF)
+# define SCxSR_TDxE(port) (((port)->type == PORT_SCI) ? SCI_TDRE : SCIF_TDFE)
+# define SCxSR_ORER(port) (((port)->type == PORT_SCI) ? SCI_ORER : 0x0000)
+# define SCxSR_FER(port) (((port)->type == PORT_SCI) ? SCI_FER : SCIF_FER)
+# define SCxSR_PER(port) (((port)->type == PORT_SCI) ? SCI_PER : SCIF_PER)
+# define SCxSR_BRK(port) (((port)->type == PORT_SCI) ? 0x00 : SCIF_BRK)
+# define SCxSR_RDxF_CLEAR(port) (((port)->type == PORT_SCI) ? 0xbc : 0x00fc)
+# define SCxSR_ERROR_CLEAR(port) (((port)->type == PORT_SCI) ? 0xc4 : 0x0073)
+# define SCxSR_TDxE_CLEAR(port) (((port)->type == PORT_SCI) ? 0x78 : 0x00df)
+# define SCxSR_BREAK_CLEAR(port) (((port)->type == PORT_SCI) ? 0xc4 : 0x00e3)
+#endif
+
+/* SCFCR */
+#define SCFCR_RFRST 0x0002
+#define SCFCR_TFRST 0x0004
+#define SCFCR_TCRST 0x4000
+#define SCFCR_MCE 0x0008
+
+#define SCI_MAJOR 204
+#define SCI_MINOR_START 8
+
+/* Generic serial flags */
+#define SCI_RX_THROTTLE 0x0000001
+
+#define SCI_MAGIC 0xbabeface
+
+/*
+ * Events are used to schedule things to happen at timer-interrupt
+ * time, instead of at rs interrupt time.
+ */
+#define SCI_EVENT_WRITE_WAKEUP 0
+
+struct sci_port {
+ struct uart_port port;
+ int type;
+ unsigned char irqs[4]; /* ERI, RXI, TXI, BRI */
+ void (*init_pins)(struct uart_port *port, unsigned int cflag);
+ int break_flag;
+ struct timer_list break_timer;
+};
+
+#define SCI_IN(size, offset) \
+ unsigned int addr = port->mapbase + (offset); \
+ if ((size) == 8) { \
+ return ctrl_inb(addr); \
+ } else { \
+ return ctrl_inw(addr); \
+ }
+#define SCI_OUT(size, offset, value) \
+ unsigned int addr = port->mapbase + (offset); \
+ if ((size) == 8) { \
+ ctrl_outb(value, addr); \
+ } else { \
+ ctrl_outw(value, addr); \
+ }
+
+#define CPU_SCIx_FNS(name, sci_offset, sci_size, scif_offset, scif_size)\
+ static inline unsigned int sci_##name##_in(struct uart_port *port) \
+ { \
+ if (port->type == PORT_SCI) { \
+ SCI_IN(sci_size, sci_offset) \
+ } else { \
+ SCI_IN(scif_size, scif_offset); \
+ } \
+ } \
+ static inline void sci_##name##_out(struct uart_port *port, unsigned int value) \
+ { \
+ if (port->type == PORT_SCI) { \
+ SCI_OUT(sci_size, sci_offset, value) \
+ } else { \
+ SCI_OUT(scif_size, scif_offset, value); \
+ } \
+ }
+
+#define CPU_SCIF_FNS(name, scif_offset, scif_size) \
+ static inline unsigned int sci_##name##_in(struct uart_port *port) \
+ { \
+ SCI_IN(scif_size, scif_offset); \
+ } \
+ static inline void sci_##name##_out(struct uart_port *port, unsigned int value) \
+ { \
+ SCI_OUT(scif_size, scif_offset, value); \
+ }
+
+#define CPU_SCI_FNS(name, sci_offset, sci_size) \
+ static inline unsigned int sci_##name##_in(struct uart_port* port) \
+ { \
+ SCI_IN(sci_size, sci_offset); \
+ } \
+ static inline void sci_##name##_out(struct uart_port* port, unsigned int value) \
+ { \
+ SCI_OUT(sci_size, sci_offset, value); \
+ }
+
+#ifdef CONFIG_CPU_SH3
+#if defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7705)
+#define SCIF_FNS(name, scif_offset, scif_size) \
+ CPU_SCIF_FNS(name, scif_offset, scif_size)
+#else
+#define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size, sh4_sci_offset, sh4_sci_size, \
+ sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size, \
+ h8_sci_offset, h8_sci_size) \
+ CPU_SCIx_FNS(name, sh3_sci_offset, sh3_sci_size, sh3_scif_offset, sh3_scif_size)
+#define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size) \
+ CPU_SCIF_FNS(name, sh3_scif_offset, sh3_scif_size)
+#endif
+#elif defined(__H8300H__) || defined(__H8300S__)
+#define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size, sh4_sci_offset, sh4_sci_size, \
+ sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size, \
+ h8_sci_offset, h8_sci_size) \
+ CPU_SCI_FNS(name, h8_sci_offset, h8_sci_size)
+#define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size)
+#else
+#define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size, sh4_sci_offset, sh4_sci_size, \
+ sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size, \
+ h8_sci_offset, h8_sci_size) \
+ CPU_SCIx_FNS(name, sh4_sci_offset, sh4_sci_size, sh4_scif_offset, sh4_scif_size)
+#define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size) \
+ CPU_SCIF_FNS(name, sh4_scif_offset, sh4_scif_size)
+#endif
+
+#if defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7705)
+SCIF_FNS(SCSMR, 0x00, 16)
+SCIF_FNS(SCBRR, 0x04, 8)
+SCIF_FNS(SCSCR, 0x08, 16)
+SCIF_FNS(SCTDSR, 0x0c, 8)
+SCIF_FNS(SCFER, 0x10, 16)
+SCIF_FNS(SCxSR, 0x14, 16)
+SCIF_FNS(SCFCR, 0x18, 16)
+SCIF_FNS(SCFDR, 0x1c, 16)
+SCIF_FNS(SCxTDR, 0x20, 8)
+SCIF_FNS(SCxRDR, 0x24, 8)
+SCIF_FNS(SCLSR, 0x24, 16)
+#else
+/* reg SCI/SH3 SCI/SH4 SCIF/SH3 SCIF/SH4 SCI/H8*/
+/* name off sz off sz off sz off sz off sz*/
+SCIx_FNS(SCSMR, 0x00, 8, 0x00, 8, 0x00, 8, 0x00, 16, 0x00, 8)
+SCIx_FNS(SCBRR, 0x02, 8, 0x04, 8, 0x02, 8, 0x04, 8, 0x01, 8)
+SCIx_FNS(SCSCR, 0x04, 8, 0x08, 8, 0x04, 8, 0x08, 16, 0x02, 8)
+SCIx_FNS(SCxTDR, 0x06, 8, 0x0c, 8, 0x06, 8, 0x0C, 8, 0x03, 8)
+SCIx_FNS(SCxSR, 0x08, 8, 0x10, 8, 0x08, 16, 0x10, 16, 0x04, 8)
+SCIx_FNS(SCxRDR, 0x0a, 8, 0x14, 8, 0x0A, 8, 0x14, 8, 0x05, 8)
+SCIF_FNS(SCFCR, 0x0c, 8, 0x18, 16)
+SCIF_FNS(SCFDR, 0x0e, 16, 0x1C, 16)
+SCIF_FNS(SCSPTR, 0, 0, 0x20, 16)
+SCIF_FNS(SCLSR, 0, 0, 0x24, 16)
+#endif
+#define sci_in(port, reg) sci_##reg##_in(port)
+#define sci_out(port, reg, value) sci_##reg##_out(port, value)
+
+/* H8/300 series SCI pins assignment */
+#if defined(__H8300H__) || defined(__H8300S__)
+static const struct __attribute__((packed)) {
+ int port; /* GPIO port no */
+ unsigned short rx,tx; /* GPIO bit no */
+} h8300_sci_pins[] = {
+#if defined(CONFIG_H83007) || defined(CONFIG_H83068)
+ { /* SCI0 */
+ .port = H8300_GPIO_P9,
+ .rx = H8300_GPIO_B2,
+ .tx = H8300_GPIO_B0,
+ },
+ { /* SCI1 */
+ .port = H8300_GPIO_P9,
+ .rx = H8300_GPIO_B3,
+ .tx = H8300_GPIO_B1,
+ },
+ { /* SCI2 */
+ .port = H8300_GPIO_PB,
+ .rx = H8300_GPIO_B7,
+ .tx = H8300_GPIO_B6,
+ }
+#elif defined(CONFIG_H8S2678)
+ { /* SCI0 */
+ .port = H8300_GPIO_P3,
+ .rx = H8300_GPIO_B2,
+ .tx = H8300_GPIO_B0,
+ },
+ { /* SCI1 */
+ .port = H8300_GPIO_P3,
+ .rx = H8300_GPIO_B3,
+ .tx = H8300_GPIO_B1,
+ },
+ { /* SCI2 */
+ .port = H8300_GPIO_P5,
+ .rx = H8300_GPIO_B1,
+ .tx = H8300_GPIO_B0,
+ }
+#endif
+};
+#endif
+
+#if defined(CONFIG_CPU_SUBTYPE_SH7708)
+static inline int sci_rxd_in(struct uart_port *port)
+{
+ if (port->mapbase == 0xfffffe80)
+ return ctrl_inb(SCSPTR)&0x01 ? 1 : 0; /* SCI */
+ return 1;
+}
+#elif defined(CONFIG_CPU_SUBTYPE_SH7707) || defined(CONFIG_CPU_SUBTYPE_SH7709)
+static inline int sci_rxd_in(struct uart_port *port)
+{
+ if (port->mapbase == 0xfffffe80)
+ return ctrl_inb(SCPDR)&0x01 ? 1 : 0; /* SCI */
+ if (port->mapbase == 0xa4000150)
+ return ctrl_inb(SCPDR)&0x10 ? 1 : 0; /* SCIF */
+ if (port->mapbase == 0xa4000140)
+ return ctrl_inb(SCPDR)&0x04 ? 1 : 0; /* IRDA */
+ return 1;
+}
+#elif defined(CONFIG_CPU_SUBTYPE_SH7705)
+static inline int sci_rxd_in(struct uart_port *port)
+{
+ if (port->mapbase == SCIF0)
+ return ctrl_inb(SCPDR)&0x04 ? 1 : 0; /* IRDA */
+ if (port->mapbase == SCIF2)
+ return ctrl_inb(SCPDR)&0x10 ? 1 : 0; /* SCIF */
+ return 1;
+}
+#elif defined(CONFIG_CPU_SUBTYPE_SH7750) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7751) || \
+ defined(CONFIG_CPU_SUBTYPE_SH4_202)
+static inline int sci_rxd_in(struct uart_port *port)
+{
+#ifndef SCIF_ONLY
+ if (port->mapbase == 0xffe00000)
+ return ctrl_inb(SCSPTR1)&0x01 ? 1 : 0; /* SCI */
+#endif
+#ifndef SCI_ONLY
+ if (port->mapbase == 0xffe80000)
+ return ctrl_inw(SCSPTR2)&0x0001 ? 1 : 0; /* SCIF */
+#endif
+ return 1;
+}
+#elif defined(CONFIG_CPU_SUBTYPE_SH7760)
+static inline int sci_rxd_in(struct uart_port *port)
+{
+ if (port->mapbase == 0xfe600000)
+ return ctrl_inw(SCSPTR0) & 0x0001 ? 1 : 0; /* SCIF */
+ if (port->mapbase == 0xfe610000)
+ return ctrl_inw(SCSPTR1) & 0x0001 ? 1 : 0; /* SCIF */
+ if (port->mapbase == 0xfe620000)
+ return ctrl_inw(SCSPTR2) & 0x0001 ? 1 : 0; /* SCIF */
+}
+#elif defined(CONFIG_CPU_SUBTYPE_SH7300)
+static inline int sci_rxd_in(struct uart_port *port)
+{
+ if (port->mapbase == 0xa4430000)
+ return ctrl_inb(SCPDR)&0x01 ? 1 : 0; /* SCIF0 */
+ return 1;
+}
+#elif defined(CONFIG_CPU_SUBTYPE_SH73180)
+static inline int sci_rxd_in(struct uart_port *port)
+{
+ return ctrl_inb(SCPDR)&0x01 ? 1 : 0; /* SCIF0 */
+}
+#elif defined(CONFIG_CPU_SUBTYPE_ST40STB1)
+static inline int sci_rxd_in(struct uart_port *port)
+{
+ if (port->mapbase == 0xffe00000)
+ return ctrl_inw(SCSPTR1)&0x0001 ? 1 : 0; /* SCIF */
+ else
+ return ctrl_inw(SCSPTR2)&0x0001 ? 1 : 0; /* SCIF */
+
+}
+#elif defined(CONFIG_CPU_SUBTYPE_SH5_101) || defined(CONFIG_CPU_SUBTYPE_SH5_103)
+static inline int sci_rxd_in(struct uart_port *port)
+{
+ return sci_in(port, SCSPTR)&0x0001 ? 1 : 0; /* SCIF */
+}
+#elif defined(__H8300H__) || defined(__H8300S__)
+static inline int sci_rxd_in(struct uart_port *port)
+{
+ int ch = (port->mapbase - SMR0) >> 3;
+ return (H8300_SCI_DR(ch) & h8300_sci_pins[ch].rx) ? 1 : 0;
+}
+#endif
+
+/*
+ * Values for the BitRate Register (SCBRR)
+ *
+ * The values are actually divisors for a frequency which can
+ * be internal to the SH3 (14.7456MHz) or derived from an external
+ * clock source. This driver assumes the internal clock is used;
+ * to support using an external clock source, config options or
+ * possibly command-line options would need to be added.
+ *
+ * Also, to support speeds below 2400 (why?) the lower 2 bits of
+ * the SCSMR register would also need to be set to non-zero values.
+ *
+ * -- Greg Banks 27Feb2000
+ *
+ * Answer: The SCBRR register is only eight bits, and the value in
+ * it gets larger with lower baud rates. At around 2400 (depending on
+ * the peripherial module clock) you run out of bits. However the
+ * lower two bits of SCSMR allow the module clock to be divided down,
+ * scaling the value which is needed in SCBRR.
+ *
+ * -- Stuart Menefy - 23 May 2000
+ *
+ * I meant, why would anyone bother with bitrates below 2400.
+ *
+ * -- Greg Banks - 7Jul2000
+ *
+ * You "speedist"! How will I use my 110bps ASR-33 teletype with paper
+ * tape reader as a console!
+ *
+ * -- Mitch Davis - 15 Jul 2000
+ */
+
+#define PCLK (current_cpu_data.module_clock)
+
+#if defined(CONFIG_CPU_SUBTYPE_SH7300)
+#define SCBRR_VALUE(bps) ((PCLK+16*bps)/(16*bps)-1)
+#elif defined(CONFIG_CPU_SUBTYPE_SH7705)
+#define SCBRR_VALUE(bps) (((PCLK*2)+16*bps)/(32*bps)-1)
+#elif !defined(__H8300H__) && !defined(__H8300S__)
+#define SCBRR_VALUE(bps) ((PCLK+16*bps)/(32*bps)-1)
+#else
+#define SCBRR_VALUE(bps) (((CONFIG_CPU_CLOCK*1000/32)/bps)-1)
+#endif
+#define BPS_2400 SCBRR_VALUE(2400)
+#define BPS_4800 SCBRR_VALUE(4800)
+#define BPS_9600 SCBRR_VALUE(9600)
+#define BPS_19200 SCBRR_VALUE(19200)
+#define BPS_38400 SCBRR_VALUE(38400)
+#define BPS_57600 SCBRR_VALUE(57600)
+#define BPS_115200 SCBRR_VALUE(115200)
+