| /* |
| * Copy and modify from linux/drivers/serial/sh-sci.h |
| */ |
| |
| #include <dm/platform_data/serial_sh.h> |
| |
| struct uart_port { |
| unsigned long iobase; /* in/out[bwl] */ |
| unsigned char *membase; /* read/write[bwl] */ |
| unsigned long mapbase; /* for ioremap */ |
| enum sh_serial_type type; /* port type */ |
| enum sh_clk_mode clk_mode; /* clock mode */ |
| }; |
| |
| #if defined(CONFIG_CPU_SH7721) || \ |
| defined(CONFIG_R8A7740) |
| # define SCSCR_INIT(port) 0x0030 /* TIE=0,RIE=0,TE=1,RE=1 */ |
| # define PORT_PTCR 0xA405011EUL |
| # define PORT_PVCR 0xA4050122UL |
| # define SCIF_ORER 0x0200 /* overrun error bit */ |
| #elif defined(CONFIG_CPU_SH7750) || \ |
| defined(CONFIG_CPU_SH7750R) || \ |
| defined(CONFIG_CPU_SH7750S) || \ |
| defined(CONFIG_CPU_SH7751) || \ |
| defined(CONFIG_CPU_SH7751R) |
| # 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 */) |
| #elif defined(CONFIG_CPU_SH7722) |
| # define PADR 0xA4050120 |
| # undef PSDR |
| # define PSDR 0xA405013e |
| # define PWDR 0xA4050166 |
| # define PSCR 0xA405011E |
| # define SCIF_ORER 0x0001 /* overrun error bit */ |
| # define SCSCR_INIT(port) 0x0038 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */ |
| #elif defined(CONFIG_CPU_SH7723) |
| # define SCSPTR0 0xa4050160 |
| # define SCSPTR1 0xa405013e |
| # define SCSPTR2 0xa4050160 |
| # define SCSPTR3 0xa405013e |
| # define SCSPTR4 0xa4050128 |
| # define SCSPTR5 0xa4050128 |
| # define SCIF_ORER 0x0001 /* overrun error bit */ |
| # define SCSCR_INIT(port) 0x0038 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */ |
| #elif defined(CONFIG_CPU_SH7734) |
| # define SCSPTR0 0xFFE40020 |
| # define SCSPTR1 0xFFE41020 |
| # define SCSPTR2 0xFFE42020 |
| # define SCSPTR3 0xFFE43020 |
| # define SCSPTR4 0xFFE44020 |
| # define SCSPTR5 0xFFE45020 |
| # define SCIF_ORER 0x0001 /* overrun error bit */ |
| # define SCSCR_INIT(port) 0x0038 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */ |
| #elif defined(CONFIG_CPU_SH7757) || \ |
| defined(CONFIG_CPU_SH7752) || \ |
| defined(CONFIG_CPU_SH7753) |
| # define SCSPTR0 0xfe4b0020 |
| # define SCSPTR1 0xfe4b0020 |
| # define SCSPTR2 0xfe4b0020 |
| # define SCIF_ORER 0x0001 |
| # define SCSCR_INIT(port) 0x38 |
| # define SCIF_ONLY |
| #elif defined(CONFIG_CPU_SH7763) |
| # define SCSPTR0 0xffe00024 /* 16 bit SCIF */ |
| # define SCSPTR1 0xffe08024 /* 16 bit SCIF */ |
| # define SCSPTR2 0xffe10020 /* 16 bit SCIF/IRDA */ |
| # define SCIF_ORER 0x0001 /* overrun error bit */ |
| # define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */ |
| #elif defined(CONFIG_CPU_SH7780) |
| # define SCSPTR0 0xffe00024 /* 16 bit SCIF */ |
| # define SCSPTR1 0xffe10024 /* 16 bit SCIF */ |
| # define SCIF_ORER 0x0001 /* Overrun error bit */ |
| |
| /* TIE=0,RIE=0,TE=1,RE=1,REIE=1,CKE1=1 */ |
| # define SCSCR_INIT(port) 0x3a |
| |
| #elif defined(CONFIG_RZA1) |
| # define SCSPTR0 0xe8007020 /* 16 bit SCIF */ |
| # define SCSPTR1 0xe8007820 /* 16 bit SCIF */ |
| # define SCSPTR2 0xe8008020 /* 16 bit SCIF */ |
| # define SCSPTR3 0xe8008820 /* 16 bit SCIF */ |
| # define SCSPTR4 0xe8009020 /* 16 bit SCIF */ |
| # define SCSPTR5 0xe8009820 /* 16 bit SCIF */ |
| # define SCSPTR6 0xe800a020 /* 16 bit SCIF */ |
| # define SCSPTR7 0xe800a820 /* 16 bit SCIF */ |
| # define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */ |
| # define SCIF_ORER 0x0001 /* overrun error bit */ |
| #elif defined(CONFIG_RCAR_GEN2) || defined(CONFIG_RCAR_64) || \ |
| defined(CONFIG_R7S72100) |
| # if defined(CFG_SCIF_A) |
| # define SCIF_ORER 0x0200 |
| # else |
| # define SCIF_ORER 0x0001 |
| # endif |
| # define SCSCR_INIT(port) (port->clk_mode == EXT_CLK ? 0x32 : 0x30) |
| /* TIE=0,RIE=0,TE=1,RE=1,REIE=0, */ |
| #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_SH7750) || \ |
| defined(CONFIG_CPU_SH7750R) || \ |
| defined(CONFIG_CPU_SH7722) || \ |
| defined(CONFIG_CPU_SH7734) || \ |
| defined(CONFIG_CPU_SH7750S) || \ |
| defined(CONFIG_CPU_SH7751) || \ |
| defined(CONFIG_CPU_SH7751R) || \ |
| defined(CONFIG_CPU_SH7763) || \ |
| defined(CONFIG_CPU_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_SH7721) || \ |
| defined(CONFIG_R8A7740) |
| # 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 |
| #elif defined(CONFIG_CPU_SH7763) |
| # define SCIF_ERRORS (SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK) |
| # define SCIF_RFDC_MASK 0x007f |
| # define SCIF_TXROOM_MAX 64 |
| /* SH7763 SCIF2 support */ |
| # define SCIF2_RFDC_MASK 0x001f |
| # define SCIF2_TXROOM_MAX 16 |
| #elif defined(CONFIG_RCAR_GEN2) |
| # define SCIF_ERRORS (SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK) |
| # if defined(CFG_SCIF_A) |
| # define SCIF_RFDC_MASK 0x007f |
| # else |
| # define SCIF_RFDC_MASK 0x001f |
| # endif |
| #else |
| # define SCIF_ERRORS (SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK) |
| # define SCIF_RFDC_MASK 0x001f |
| # define SCIF_TXROOM_MAX 16 |
| #endif |
| |
| #ifndef SCIF_ORER |
| #define SCIF_ORER 0x0000 |
| #endif |
| |
| #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_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_ORER(port)\ |
| (((port)->type == PORT_SCI) ? SCI_ORER : SCIF_ORER) |
| |
| #if defined(CONFIG_CPU_SH7721) || \ |
| defined(CONFIG_R8A7740) |
| # 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 |
| # 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)\ |
| if ((size) == 8) {\ |
| return readb(port->membase + (offset));\ |
| } else {\ |
| return readw(port->membase + (offset));\ |
| } |
| #define SCI_OUT(size, offset, value)\ |
| if ((size) == 8) {\ |
| writeb(value, port->membase + (offset));\ |
| } else if ((size) == 16) {\ |
| writew(value, port->membase + (offset));\ |
| } |
| |
| #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_SCIF || port->type == PORT_SCIFB) {\ |
| SCI_IN(scif_size, scif_offset)\ |
| } else { /* PORT_SCI or PORT_SCIFA */\ |
| SCI_IN(sci_size, sci_offset);\ |
| }\ |
| }\ |
| static inline void sci_##name##_out(struct uart_port *port,\ |
| unsigned int value) {\ |
| if (port->type == PORT_SCIF || port->type == PORT_SCIFB) {\ |
| SCI_OUT(scif_size, scif_offset, value)\ |
| } else { /* PORT_SCI or PORT_SCIFA */\ |
| SCI_OUT(sci_size, sci_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);\ |
| } |
| |
| #if defined(CONFIG_R8A7740) |
| #if defined(CONFIG_CPU_SH7721) || \ |
| defined(CONFIG_SH73A0) |
| #define SCIF_FNS(name, scif_offset, scif_size) \ |
| CPU_SCIF_FNS(name, scif_offset, scif_size) |
| #elif defined(CONFIG_R8A7740) |
| #define SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size,\ |
| sh4_scifb_offset, sh4_scifb_size) \ |
| CPU_SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size,\ |
| sh4_scifb_offset, sh4_scifb_size) |
| #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(CONFIG_CPU_SH7723) |
| #define SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size,\ |
| sh4_scif_offset, sh4_scif_size) \ |
| CPU_SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size,\ |
| sh4_scif_offset, sh4_scif_size) |
| #define SCIF_FNS(name, sh4_scif_offset, sh4_scif_size) \ |
| CPU_SCIF_FNS(name, 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_SH7721) |
| |
| 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, 0x00, 0) |
| SCIF_FNS(DL, 0x00, 0) /* dummy */ |
| #elif defined(CONFIG_R8A7740) |
| SCIF_FNS(SCSMR, 0x00, 16) |
| SCIF_FNS(SCBRR, 0x04, 8) |
| SCIF_FNS(SCSCR, 0x08, 16) |
| SCIF_FNS(SCTDSR, 0x0c, 16) |
| SCIF_FNS(SCFER, 0x10, 16) |
| SCIF_FNS(SCxSR, 0x14, 16) |
| SCIF_FNS(SCFCR, 0x18, 16) |
| SCIF_FNS(SCFDR, 0x1c, 16) |
| SCIF_FNS(SCTFDR, 0x38, 16) |
| SCIF_FNS(SCRFDR, 0x3c, 16) |
| SCIx_FNS(SCxTDR, 0x20, 8, 0x40, 8) |
| SCIx_FNS(SCxRDR, 0x24, 8, 0x60, 8) |
| SCIF_FNS(SCLSR, 0x00, 0) |
| SCIF_FNS(DL, 0x00, 0) /* dummy */ |
| #elif defined(CONFIG_CPU_SH7723) |
| SCIx_FNS(SCSMR, 0x00, 16, 0x00, 16) |
| SCIx_FNS(SCBRR, 0x04, 8, 0x04, 8) |
| SCIx_FNS(SCSCR, 0x08, 16, 0x08, 16) |
| SCIx_FNS(SCxTDR, 0x20, 8, 0x0c, 8) |
| SCIx_FNS(SCxSR, 0x14, 16, 0x10, 16) |
| SCIx_FNS(SCxRDR, 0x24, 8, 0x14, 8) |
| SCIx_FNS(SCSPTR, 0, 0, 0, 0) |
| SCIF_FNS(SCTDSR, 0x0c, 8) |
| SCIF_FNS(SCFER, 0x10, 16) |
| SCIF_FNS(SCFCR, 0x18, 16) |
| SCIF_FNS(SCFDR, 0x1c, 16) |
| SCIF_FNS(SCLSR, 0x24, 16) |
| SCIF_FNS(DL, 0x00, 0) /* dummy */ |
| #elif defined(CONFIG_RCAR_GEN2) |
| /* SCIFA and SCIF register offsets and size */ |
| SCIx_FNS(SCSMR, 0, 0, 0x00, 16, 0, 0, 0x00, 16, 0, 0) |
| SCIx_FNS(SCBRR, 0, 0, 0x04, 8, 0, 0, 0x04, 8, 0, 0) |
| SCIx_FNS(SCSCR, 0, 0, 0x08, 16, 0, 0, 0x08, 16, 0, 0) |
| SCIx_FNS(SCxTDR, 0, 0, 0x20, 8, 0, 0, 0x0C, 8, 0, 0) |
| SCIx_FNS(SCxSR, 0, 0, 0x14, 16, 0, 0, 0x10, 16, 0, 0) |
| SCIx_FNS(SCxRDR, 0, 0, 0x24, 8, 0, 0, 0x14, 8, 0, 0) |
| SCIF_FNS(SCFCR, 0, 0, 0x18, 16) |
| SCIF_FNS(SCFDR, 0, 0, 0x1C, 16) |
| SCIF_FNS(SCSPTR, 0, 0, 0x20, 16) |
| SCIF_FNS(DL, 0, 0, 0x30, 16) |
| SCIF_FNS(CKS, 0, 0, 0x34, 16) |
| #if defined(CFG_SCIF_A) |
| SCIF_FNS(SCLSR, 0, 0, 0x14, 16) |
| #else |
| SCIF_FNS(SCLSR, 0, 0, 0x24, 16) |
| #endif |
| #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_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) |
| #elif defined(CONFIG_CPU_SH7763) |
| SCIF_FNS(SCFDR, 0, 0, 0x1C, 16) |
| SCIF_FNS(SCSPTR2, 0, 0, 0x20, 16) |
| SCIF_FNS(SCLSR2, 0, 0, 0x24, 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) |
| #if defined(CONFIG_CPU_SH7722) |
| SCIF_FNS(SCSPTR, 0, 0, 0, 0) |
| #else |
| SCIF_FNS(SCSPTR, 0, 0, 0x20, 16) |
| #endif |
| SCIF_FNS(SCLSR, 0, 0, 0x24, 16) |
| #endif |
| SCIF_FNS(DL, 0, 0, 0x0, 0) /* dummy */ |
| #endif |
| #define sci_in(port, reg) sci_##reg##_in(port) |
| #define sci_out(port, reg, value) sci_##reg##_out(port, value) |
| |
| #if defined(CONFIG_CPU_SH7750) || \ |
| defined(CONFIG_CPU_SH7751) || \ |
| defined(CONFIG_CPU_SH7751R) || \ |
| defined(CONFIG_CPU_SH7750R) || \ |
| defined(CONFIG_CPU_SH7750S) |
| static inline int sci_rxd_in(struct uart_port *port) |
| { |
| if (port->mapbase == 0xffe00000) |
| return __raw_readb(SCSPTR1)&0x01 ? 1 : 0; /* SCI */ |
| return 1; |
| } |
| #else /* default case for non-SCI processors */ |
| static inline int sci_rxd_in(struct uart_port *port) |
| { |
| return 1; |
| } |
| #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_SH7780) |
| #define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(16*bps)-1) |
| #elif defined(CONFIG_CPU_SH7721) || \ |
| defined(CONFIG_R8A7740) |
| #define SCBRR_VALUE(bps, clk) (((clk*2)+16*bps)/(32*bps)-1) |
| #elif defined(CONFIG_CPU_SH7723) |
| static inline int scbrr_calc(struct uart_port *port, int bps, int clk) |
| { |
| if (port->type == PORT_SCIF) |
| return (clk+16*bps)/(32*bps)-1; |
| else |
| return ((clk*2)+16*bps)/(16*bps)-1; |
| } |
| #define SCBRR_VALUE(bps, clk) scbrr_calc(port, bps, clk) |
| #elif defined(CONFIG_RCAR_GEN2) |
| #define DL_VALUE(bps, clk) (clk / bps / 16) /* External Clock */ |
| #if defined(CFG_SCIF_A) |
| #define SCBRR_VALUE(bps, clk) (clk / bps / 16 - 1) /* Internal Clock */ |
| #else |
| #define SCBRR_VALUE(bps, clk) (clk / bps / 32 - 1) /* Internal Clock */ |
| #endif |
| #else /* Generic SH */ |
| #define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(32*bps)-1) |
| #endif |
| |
| #ifndef DL_VALUE |
| #define DL_VALUE(bps, clk) 0 |
| #endif |