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serial: serial-sh: SCIFA interface for R-Car Gen2 SoCs

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Add SCIFA console interface for R-Car Gen2 SoCs.
SCIFA has different registers offsets and sizes then SCI. Hence it needs to
put it's macro definitions separately.

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
master
Vladimir Barinov 9 years ago committed by Nobuhiro Iwamatsu
parent 9035edbae9
commit 53be7bf2a5
1 changed files with 34 additions and 9 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 43
      drivers/serial/serial_sh.h

43
drivers/serial/serial_sh.h
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@ -226,7 +226,11 @@ struct uart_port {
# define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
#elif defined(CONFIG_R8A7790) || defined(CONFIG_R8A7791) || \
defined(CONFIG_R8A7793) || defined(CONFIG_R8A7794)
# define SCIF_ORER 0x0001
# if defined(CONFIG_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
@ -306,7 +310,11 @@ struct uart_port {
#elif defined(CONFIG_R8A7790) || defined(CONFIG_R8A7791) || \
defined(CONFIG_R8A7793) || defined(CONFIG_R8A7794)
# define SCIF_ERRORS (SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK)
# define SCIF_RFDC_MASK 0x003f
# if defined(CONFIG_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
@ -557,6 +565,25 @@ SCIF_FNS(SCFCR, 0x18, 16)
SCIF_FNS(SCFDR, 0x1c, 16)
SCIF_FNS(SCLSR, 0x24, 16)
SCIF_FNS(DL, 0x00, 0) /* dummy */
#elif defined(CONFIG_R8A7790) || defined(CONFIG_R8A7791) || \
defined(CONFIG_R8A7793) || defined(CONFIG_R8A7794)
/* 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(CONFIG_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*/
@ -594,14 +621,8 @@ SCIF_FNS(SCSPTR, 0, 0, 0x20, 16)
#endif
SCIF_FNS(SCLSR, 0, 0, 0x24, 16)
#endif
#if defined(CONFIG_R8A7790) || defined(CONFIG_R8A7791) || \
defined(CONFIG_R8A7793) || defined(CONFIG_R8A7794)
SCIF_FNS(DL, 0, 0, 0x30, 16)
SCIF_FNS(CKS, 0, 0, 0x34, 16)
#else
SCIF_FNS(DL, 0, 0, 0x0, 0) /* dummy */
#endif
#endif
#define sci_in(port, reg) sci_##reg##_in(port)
#define sci_out(port, reg, value) sci_##reg##_out(port, value)
@ -743,7 +764,11 @@ static inline int scbrr_calc(struct uart_port *port, int bps, int clk)
#elif defined(CONFIG_R8A7790) || defined(CONFIG_R8A7791) || \
defined(CONFIG_R8A7793) || defined(CONFIG_R8A7794)
#define DL_VALUE(bps, clk) (clk / bps / 16) /* External Clock */
#define SCBRR_VALUE(bps, clk) (clk / bps / 32 - 1) /* Internal Clock */
#if defined(CONFIG_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

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