/* $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> #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 } #define SH7770_SCIF0_IRQS {61, 61, 61, 61 } #define SH7770_SCIF1_IRQS {62, 62, 62, 62 } #define SH7770_SCIF2_IRQS {63, 63, 63, 63 } #define SH7780_SCIF0_IRQS {40, 41, 43, 42 } #define SH7780_SCIF1_IRQS {76, 77, 79, 78 } #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) # 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_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_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_OPER 0x0001 /* Overrun error bit */ # define SCSCR_INIT(port) 0x3a /* 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 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) #if defined(CONFIG_CPU_SUBTYPE_SH7760) || defined(CONFIG_CPU_SUBTYPE_SH7780) 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) 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; } #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 */ } #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