| /* $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/serial_core.h> |
| #include <asm/io.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 |
| |
| #if defined(CONFIG_CPU_SUBTYPE_SH7708) |
| # 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) || \ |
| defined(CONFIG_CPU_SUBTYPE_SH7706) |
| # 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 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 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 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 SCSPTR0 0xfe600024 /* 16 bit SCIF */ |
| # define SCSPTR1 0xfe610024 /* 16 bit SCIF */ |
| # define SCSPTR2 0xfe620024 /* 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 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_SH7710) |
| # define SCSPTR0 0xA4400000 /* 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 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_SH7343) |
| # define SCSPTR0 0xffe00010 /* 16 bit SCIF */ |
| # define SCSPTR1 0xffe10010 /* 16 bit SCIF */ |
| # define SCSPTR2 0xffe20010 /* 16 bit SCIF */ |
| # define SCSPTR3 0xffe30010 /* 16 bit SCIF */ |
| # define SCSCR_INIT(port) 0x32 /* TIE=0,RIE=0,TE=1,RE=1,REIE=0,CKE=1 */ |
| # define SCIF_ONLY |
| #elif defined(CONFIG_CPU_SUBTYPE_SH4_202) |
| # 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 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 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 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 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_CPU_SUBTYPE_SH7770) |
| # define SCSPTR0 0xff923020 /* 16 bit SCIF */ |
| # define SCSPTR1 0xff924020 /* 16 bit SCIF */ |
| # define SCSPTR2 0xff925020 /* 16 bit SCIF */ |
| # define SCIF_ORER 0x0001 /* overrun error bit */ |
| # define SCSCR_INIT(port) 0x3c /* TIE=0,RIE=0,TE=1,RE=1,REIE=1,cke=2 */ |
| # define SCIF_ONLY |
| #elif defined(CONFIG_CPU_SUBTYPE_SH7780) |
| # define SCSPTR0 0xffe00024 /* 16 bit SCIF */ |
| # define SCSPTR1 0xffe10024 /* 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_SH7206) |
| # define SCSPTR0 0xfffe8020 /* 16 bit SCIF */ |
| # define SCSPTR1 0xfffe8820 /* 16 bit SCIF */ |
| # define SCSPTR2 0xfffe9020 /* 16 bit SCIF */ |
| # define SCSPTR3 0xfffe9820 /* 16 bit SCIF */ |
| # define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */ |
| # define SCIF_ONLY |
| #elif defined(CONFIG_CPU_SUBTYPE_SH7619) |
| # define SCSPTR0 0xf8400020 /* 16 bit SCIF */ |
| # define SCSPTR1 0xf8410020 /* 16 bit SCIF */ |
| # define SCSPTR2 0xf8420020 /* 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 |
| #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) || defined(CONFIG_CPU_SUBTYPE_SH7780) |
| #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 |
| |
| #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) || \ |
| defined(CONFIG_CPU_SUBTYPE_SH7710) |
| #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) || \ |
| defined(CONFIG_CPU_SUBTYPE_SH7710) |
| 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) |
| #if defined(CONFIG_CPU_SUBTYPE_SH7760) || defined(CONFIG_CPU_SUBTYPE_SH7780) |
| SCIF_FNS(SCFDR, 0x0e, 16, 0x1C, 16) |
| SCIF_FNS(SCTFDR, 0x0e, 16, 0x1C, 16) |
| SCIF_FNS(SCRFDR, 0x0e, 16, 0x20, 16) |
| SCIF_FNS(SCSPTR, 0, 0, 0x24, 16) |
| SCIF_FNS(SCLSR, 0, 0, 0x28, 16) |
| #else |
| SCIF_FNS(SCFDR, 0x0e, 16, 0x1C, 16) |
| SCIF_FNS(SCSPTR, 0, 0, 0x20, 16) |
| SCIF_FNS(SCLSR, 0, 0, 0x24, 16) |
| #endif |
| #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) || \ |
| defined(CONFIG_CPU_SUBTYPE_SH7706) |
| 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_SH7710) |
| static inline int sci_rxd_in(struct uart_port *port) |
| { |
| if (port->mapbase == SCSPTR0) |
| return ctrl_inw(SCSPTR0 + 0x10) & 0x01 ? 1 : 0; |
| 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_SH7343) |
| static inline int sci_rxd_in(struct uart_port *port) |
| { |
| if (port->mapbase == 0xffe00000) |
| return ctrl_inw(SCSPTR0) & 0x0001 ? 1 : 0; /* SCIF */ |
| if (port->mapbase == 0xffe10000) |
| return ctrl_inw(SCSPTR1) & 0x0001 ? 1 : 0; /* SCIF */ |
| if (port->mapbase == 0xffe20000) |
| return ctrl_inw(SCSPTR2) & 0x0001 ? 1 : 0; /* SCIF */ |
| if (port->mapbase == 0xffe30000) |
| return ctrl_inw(SCSPTR3) & 0x0001 ? 1 : 0; /* SCIF */ |
| return 1; |
| } |
| #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; |
| } |
| #elif defined(CONFIG_CPU_SUBTYPE_SH7770) |
| static inline int sci_rxd_in(struct uart_port *port) |
| { |
| if (port->mapbase == 0xff923000) |
| return ctrl_inw(SCSPTR0) & 0x0001 ? 1 : 0; /* SCIF */ |
| if (port->mapbase == 0xff924000) |
| return ctrl_inw(SCSPTR1) & 0x0001 ? 1 : 0; /* SCIF */ |
| if (port->mapbase == 0xff925000) |
| return ctrl_inw(SCSPTR2) & 0x0001 ? 1 : 0; /* SCIF */ |
| } |
| #elif defined(CONFIG_CPU_SUBTYPE_SH7780) |
| static inline int sci_rxd_in(struct uart_port *port) |
| { |
| if (port->mapbase == 0xffe00000) |
| return ctrl_inw(SCSPTR0) & 0x0001 ? 1 : 0; /* SCIF */ |
| if (port->mapbase == 0xffe10000) |
| return ctrl_inw(SCSPTR1) & 0x0001 ? 1 : 0; /* SCIF */ |
| } |
| #elif defined(CONFIG_CPU_SUBTYPE_SH7206) |
| static inline int sci_rxd_in(struct uart_port *port) |
| { |
| if (port->mapbase == 0xfffe8000) |
| return ctrl_inw(SCSPTR0) & 0x0001 ? 1 : 0; /* SCIF */ |
| if (port->mapbase == 0xfffe8800) |
| return ctrl_inw(SCSPTR1) & 0x0001 ? 1 : 0; /* SCIF */ |
| if (port->mapbase == 0xfffe9000) |
| return ctrl_inw(SCSPTR2) & 0x0001 ? 1 : 0; /* SCIF */ |
| if (port->mapbase == 0xfffe9800) |
| return ctrl_inw(SCSPTR3) & 0x0001 ? 1 : 0; /* SCIF */ |
| } |
| #elif defined(CONFIG_CPU_SUBTYPE_SH7619) |
| static inline int sci_rxd_in(struct uart_port *port) |
| { |
| if (port->mapbase == 0xf8400000) |
| return ctrl_inw(SCSPTR0) & 0x0001 ? 1 : 0; /* SCIF */ |
| if (port->mapbase == 0xf8410000) |
| return ctrl_inw(SCSPTR1) & 0x0001 ? 1 : 0; /* SCIF */ |
| if (port->mapbase == 0xf8420000) |
| return ctrl_inw(SCSPTR2) & 0x0001 ? 1 : 0; /* SCIF */ |
| } |
| #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 |
| */ |
| |
| #if defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7780) |
| #define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(16*bps)-1) |
| #elif defined(CONFIG_CPU_SUBTYPE_SH7705) |
| #define SCBRR_VALUE(bps, clk) (((clk*2)+16*bps)/(32*bps)-1) |
| #elif defined(__H8300H__) || defined(__H8300S__) |
| #define SCBRR_VALUE(bps) (((CONFIG_CPU_CLOCK*1000/32)/bps)-1) |
| #elif defined(CONFIG_SUPERH64) |
| #define SCBRR_VALUE(bps) ((current_cpu_data.module_clock+16*bps)/(32*bps)-1) |
| #else /* Generic SH */ |
| #define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(32*bps)-1) |
| #endif |