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raspberrypi-kernel
提交 e108b2ca 编写于 作者: P Paul Mundt
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serial: Rework sh-sci for driver model. 

sh-sci was turning in to an unmaintainable mess, especially with
regards to the port list. This cleans it up quite a bit, and
switches over to a platform device model where subtypes will
register their port list individually in their setup code.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
上级 56e8d7b5
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drivers/serial/sh-sci.c
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此差异已折叠。
drivers/serial/sh-sci.h
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......@@ -10,7 +10,9 @@
* 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>
#include <asm/io.h>
#if defined(__H8300H__) || defined(__H8300S__)
#include <asm/gpio.h>
......@@ -22,40 +24,13 @@
#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)
#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 */
......@@ -99,12 +74,23 @@
# 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 */
......@@ -145,7 +131,7 @@
#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 SCIF_ORER 0x0001 /* Overrun error bit */
# define SCSCR_INIT(port) 0x3a /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
# define SCIF_ONLY
#else
......@@ -273,15 +259,6 @@
*/
#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) { \
......@@ -336,7 +313,9 @@ struct sci_port {
}
#ifdef CONFIG_CPU_SH3
#if defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7705)
#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
......@@ -362,7 +341,9 @@ struct sci_port {
CPU_SCIF_FNS(name, sh4_scif_offset, sh4_scif_size)
#endif
#if defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7705)
#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)
......@@ -447,7 +428,9 @@ static inline int sci_rxd_in(struct uart_port *port)
return ctrl_inb(SCSPTR)&0x01 ? 1 : 0; /* SCI */
return 1;
}
#elif defined(CONFIG_CPU_SUBTYPE_SH7707) || defined(CONFIG_CPU_SUBTYPE_SH7709)
#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)
......@@ -467,6 +450,13 @@ static inline int sci_rxd_in(struct uart_port *port)
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)
......@@ -504,6 +494,19 @@ 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)
{
......@@ -587,4 +590,3 @@ static inline int sci_rxd_in(struct uart_port *port)
#else /* Generic SH */
#define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(32*bps)-1)
#endif
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