summaryrefslogtreecommitdiffstats
path: root/drivers
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2011-01-13 19:39:38 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2011-01-13 19:39:38 +0100
commit86f6f9b64a730844f1438cbedfacd6fb0170a7f7 (patch)
treecd80f8610b444ae3bd2ebfc136c2c3299a52bd9b /drivers
parentMerge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-2.6 (diff)
parentMerge branch 'sh/alphaproject' into sh-latest (diff)
downloadlinux-86f6f9b64a730844f1438cbedfacd6fb0170a7f7.tar.xz
linux-86f6f9b64a730844f1438cbedfacd6fb0170a7f7.zip
Merge branch 'sh-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* 'sh-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (31 commits) sh: Add support for AP-SH4AD-0A board. sh: Add support for AP-SH4A-3A board. sh: Add a new mach type for alpha project boards. serial: sh-sci: build fixes. sh: sh7372 SH4AL-DSP probe support sh: sh7366 Enable SDIO IRQs sh: sh7343 Enable SDIO IRQs sh: mach-ecovec24: enable runtime PM for SDHI sh: sh7723 / ap325rxa enable SDIO IRQs sh: sh7722 Enable SDIO IRQs sh: sh7724 Enable SDIO IRQs sh: Fix up legacy PTEA space attribute mapping. sh: Stub out legacy PCC pgprot encoding for X2 TLBs. sh: constify prefetch pointers. sh: Add a machvec callback for early memblock reservations. sh: update sh7757lcr_defconfig sh: add PVR probing for SH7757 3rd cut sh: Use device_initcall() instead of __initcall() sh: intc - convert board specific landisk code sh: Move init_landisk_IRQ to header file ...
Diffstat (limited to 'drivers')
-rw-r--r--drivers/serial/sh-sci.c102
-rw-r--r--drivers/serial/sh-sci.h153
2 files changed, 77 insertions, 178 deletions
diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index c291b3add1d2..92c91c83edde 100644
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -3,7 +3,7 @@
*
* SuperH on-chip serial module support. (SCI with no FIFO / with FIFO)
*
- * Copyright (C) 2002 - 2008 Paul Mundt
+ * Copyright (C) 2002 - 2011 Paul Mundt
* Modified to support SH7720 SCIF. Markus Brunner, Mark Jonas (Jul 2007).
*
* based off of the old drivers/char/sh-sci.c by:
@@ -81,14 +81,22 @@ struct sci_port {
struct timer_list break_timer;
int break_flag;
+ /* SCSCR initialization */
+ unsigned int scscr;
+
+ /* SCBRR calculation algo */
+ unsigned int scbrr_algo_id;
+
/* Interface clock */
struct clk *iclk;
/* Function clock */
struct clk *fclk;
struct list_head node;
+
struct dma_chan *chan_tx;
struct dma_chan *chan_rx;
+
#ifdef CONFIG_SERIAL_SH_SCI_DMA
struct device *dma_dev;
unsigned int slave_tx;
@@ -415,9 +423,9 @@ static void sci_transmit_chars(struct uart_port *port)
if (!(status & SCxSR_TDxE(port))) {
ctrl = sci_in(port, SCSCR);
if (uart_circ_empty(xmit))
- ctrl &= ~SCI_CTRL_FLAGS_TIE;
+ ctrl &= ~SCSCR_TIE;
else
- ctrl |= SCI_CTRL_FLAGS_TIE;
+ ctrl |= SCSCR_TIE;
sci_out(port, SCSCR, ctrl);
return;
}
@@ -459,7 +467,7 @@ static void sci_transmit_chars(struct uart_port *port)
sci_out(port, SCxSR, SCxSR_TDxE_CLEAR(port));
}
- ctrl |= SCI_CTRL_FLAGS_TIE;
+ ctrl |= SCSCR_TIE;
sci_out(port, SCSCR, ctrl);
}
}
@@ -708,7 +716,7 @@ static irqreturn_t sci_rx_interrupt(int irq, void *ptr)
disable_irq_nosync(irq);
scr |= 0x4000;
} else {
- scr &= ~SCI_CTRL_FLAGS_RIE;
+ scr &= ~SCSCR_RIE;
}
sci_out(port, SCSCR, scr);
/* Clear current interrupt */
@@ -777,6 +785,18 @@ static irqreturn_t sci_br_interrupt(int irq, void *ptr)
return IRQ_HANDLED;
}
+static inline unsigned long port_rx_irq_mask(struct uart_port *port)
+{
+ /*
+ * Not all ports (such as SCIFA) will support REIE. Rather than
+ * special-casing the port type, we check the port initialization
+ * IRQ enable mask to see whether the IRQ is desired at all. If
+ * it's unset, it's logically inferred that there's no point in
+ * testing for it.
+ */
+ return SCSCR_RIE | (to_sci_port(port)->scscr & SCSCR_REIE);
+}
+
static irqreturn_t sci_mpxed_interrupt(int irq, void *ptr)
{
unsigned short ssr_status, scr_status, err_enabled;
@@ -786,22 +806,25 @@ static irqreturn_t sci_mpxed_interrupt(int irq, void *ptr)
ssr_status = sci_in(port, SCxSR);
scr_status = sci_in(port, SCSCR);
- err_enabled = scr_status & (SCI_CTRL_FLAGS_REIE | SCI_CTRL_FLAGS_RIE);
+ err_enabled = scr_status & port_rx_irq_mask(port);
/* Tx Interrupt */
- if ((ssr_status & SCxSR_TDxE(port)) && (scr_status & SCI_CTRL_FLAGS_TIE) &&
+ if ((ssr_status & SCxSR_TDxE(port)) && (scr_status & SCSCR_TIE) &&
!s->chan_tx)
ret = sci_tx_interrupt(irq, ptr);
+
/*
* Rx Interrupt: if we're using DMA, the DMA controller clears RDF /
* DR flags
*/
if (((ssr_status & SCxSR_RDxF(port)) || s->chan_rx) &&
- (scr_status & SCI_CTRL_FLAGS_RIE))
+ (scr_status & SCSCR_RIE))
ret = sci_rx_interrupt(irq, ptr);
+
/* Error Interrupt */
if ((ssr_status & SCxSR_ERRORS(port)) && err_enabled)
ret = sci_er_interrupt(irq, ptr);
+
/* Break Interrupt */
if ((ssr_status & SCxSR_BRK(port)) && err_enabled)
ret = sci_br_interrupt(irq, ptr);
@@ -951,7 +974,7 @@ static void sci_dma_tx_complete(void *arg)
schedule_work(&s->work_tx);
} else if (port->type == PORT_SCIFA || port->type == PORT_SCIFB) {
u16 ctrl = sci_in(port, SCSCR);
- sci_out(port, SCSCR, ctrl & ~SCI_CTRL_FLAGS_TIE);
+ sci_out(port, SCSCR, ctrl & ~SCSCR_TIE);
}
spin_unlock_irqrestore(&port->lock, flags);
@@ -1214,14 +1237,16 @@ static void sci_start_tx(struct uart_port *port)
if (new != scr)
sci_out(port, SCSCR, new);
}
+
if (s->chan_tx && !uart_circ_empty(&s->port.state->xmit) &&
s->cookie_tx < 0)
schedule_work(&s->work_tx);
#endif
+
if (!s->chan_tx || port->type == PORT_SCIFA || port->type == PORT_SCIFB) {
/* Set TIE (Transmit Interrupt Enable) bit in SCSCR */
ctrl = sci_in(port, SCSCR);
- sci_out(port, SCSCR, ctrl | SCI_CTRL_FLAGS_TIE);
+ sci_out(port, SCSCR, ctrl | SCSCR_TIE);
}
}
@@ -1231,20 +1256,24 @@ static void sci_stop_tx(struct uart_port *port)
/* Clear TIE (Transmit Interrupt Enable) bit in SCSCR */
ctrl = sci_in(port, SCSCR);
+
if (port->type == PORT_SCIFA || port->type == PORT_SCIFB)
ctrl &= ~0x8000;
- ctrl &= ~SCI_CTRL_FLAGS_TIE;
+
+ ctrl &= ~SCSCR_TIE;
+
sci_out(port, SCSCR, ctrl);
}
static void sci_start_rx(struct uart_port *port)
{
- unsigned short ctrl = SCI_CTRL_FLAGS_RIE | SCI_CTRL_FLAGS_REIE;
+ unsigned short ctrl;
+
+ ctrl = sci_in(port, SCSCR) | port_rx_irq_mask(port);
- /* Set RIE (Receive Interrupt Enable) bit in SCSCR */
- ctrl |= sci_in(port, SCSCR);
if (port->type == PORT_SCIFA || port->type == PORT_SCIFB)
ctrl &= ~0x4000;
+
sci_out(port, SCSCR, ctrl);
}
@@ -1252,11 +1281,13 @@ static void sci_stop_rx(struct uart_port *port)
{
unsigned short ctrl;
- /* Clear RIE (Receive Interrupt Enable) bit in SCSCR */
ctrl = sci_in(port, SCSCR);
+
if (port->type == PORT_SCIFA || port->type == PORT_SCIFB)
ctrl &= ~0x4000;
- ctrl &= ~(SCI_CTRL_FLAGS_RIE | SCI_CTRL_FLAGS_REIE);
+
+ ctrl &= ~port_rx_irq_mask(port);
+
sci_out(port, SCSCR, ctrl);
}
@@ -1296,7 +1327,7 @@ static void rx_timer_fn(unsigned long arg)
scr &= ~0x4000;
enable_irq(s->irqs[1]);
}
- sci_out(port, SCSCR, scr | SCI_CTRL_FLAGS_RIE);
+ sci_out(port, SCSCR, scr | SCSCR_RIE);
dev_dbg(port->dev, "DMA Rx timed out\n");
schedule_work(&s->work_rx);
}
@@ -1442,12 +1473,31 @@ static void sci_shutdown(struct uart_port *port)
s->disable(port);
}
+static unsigned int sci_scbrr_calc(unsigned int algo_id, unsigned int bps,
+ unsigned long freq)
+{
+ switch (algo_id) {
+ case SCBRR_ALGO_1:
+ return ((freq + 16 * bps) / (16 * bps) - 1);
+ case SCBRR_ALGO_2:
+ return ((freq + 16 * bps) / (32 * bps) - 1);
+ case SCBRR_ALGO_3:
+ return (((freq * 2) + 16 * bps) / (16 * bps) - 1);
+ case SCBRR_ALGO_4:
+ return (((freq * 2) + 16 * bps) / (32 * bps) - 1);
+ case SCBRR_ALGO_5:
+ return (((freq * 1000 / 32) / bps) - 1);
+ }
+
+ /* Warn, but use a safe default */
+ WARN_ON(1);
+ return ((freq + 16 * bps) / (32 * bps) - 1);
+}
+
static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
struct ktermios *old)
{
-#ifdef CONFIG_SERIAL_SH_SCI_DMA
struct sci_port *s = to_sci_port(port);
-#endif
unsigned int status, baud, smr_val, max_baud;
int t = -1;
u16 scfcr = 0;
@@ -1464,7 +1514,7 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
baud = uart_get_baud_rate(port, termios, old, 0, max_baud);
if (likely(baud && port->uartclk))
- t = SCBRR_VALUE(baud, port->uartclk);
+ t = sci_scbrr_calc(s->scbrr_algo_id, baud, port->uartclk);
do {
status = sci_in(port, SCxSR);
@@ -1490,7 +1540,7 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
sci_out(port, SCSMR, smr_val);
dev_dbg(port->dev, "%s: SMR %x, t %x, SCSCR %x\n", __func__, smr_val, t,
- SCSCR_INIT(port));
+ s->scscr);
if (t > 0) {
if (t >= 256) {
@@ -1506,7 +1556,7 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
sci_init_pins(port, termios->c_cflag);
sci_out(port, SCFCR, scfcr | ((termios->c_cflag & CRTSCTS) ? SCFCR_MCE : 0));
- sci_out(port, SCSCR, SCSCR_INIT(port));
+ sci_out(port, SCSCR, s->scscr);
#ifdef CONFIG_SERIAL_SH_SCI_DMA
/*
@@ -1679,9 +1729,11 @@ static int __devinit sci_init_single(struct platform_device *dev,
port->mapbase = p->mapbase;
port->membase = p->membase;
- port->irq = p->irqs[SCIx_TXI_IRQ];
- port->flags = p->flags;
- sci_port->type = port->type = p->type;
+ port->irq = p->irqs[SCIx_TXI_IRQ];
+ port->flags = p->flags;
+ sci_port->type = port->type = p->type;
+ sci_port->scscr = p->scscr;
+ sci_port->scbrr_algo_id = p->scbrr_algo_id;
#ifdef CONFIG_SERIAL_SH_SCI_DMA
sci_port->dma_dev = p->dma_dev;
diff --git a/drivers/serial/sh-sci.h b/drivers/serial/sh-sci.h
index 4bc614e4221c..b223d6cbf33a 100644
--- a/drivers/serial/sh-sci.h
+++ b/drivers/serial/sh-sci.h
@@ -15,27 +15,17 @@
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 */
#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
#elif defined(CONFIG_CPU_SUBTYPE_SH7720) || \
defined(CONFIG_CPU_SUBTYPE_SH7721) || \
defined(CONFIG_ARCH_SH73A0) || \
defined(CONFIG_ARCH_SH7367) || \
defined(CONFIG_ARCH_SH7377) || \
defined(CONFIG_ARCH_SH7372)
-# 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 */
@@ -43,7 +33,6 @@
# define SCSPTR1 0xFFE0001C /* 8 bit SCIF */
# 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 */
#elif defined(CONFIG_CPU_SUBTYPE_SH7750) || \
defined(CONFIG_CPU_SUBTYPE_SH7750R) || \
defined(CONFIG_CPU_SUBTYPE_SH7750S) || \
@@ -53,39 +42,31 @@
# 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_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 */
#elif defined(CONFIG_CPU_SUBTYPE_SH7710) || defined(CONFIG_CPU_SUBTYPE_SH7712)
# define SCSPTR0 0xA4400000 /* 16 bit SCIF */
# define SCIF_ORER 0x0001 /* overrun error bit */
# define PACR 0xa4050100
# define PBCR 0xa4050102
-# define SCSCR_INIT(port) 0x3B
#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 */
#elif defined(CONFIG_CPU_SUBTYPE_SH7722)
# define PADR 0xA4050120
# 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_SUBTYPE_SH7366)
# define SCPDR0 0xA405013E /* 16 bit SCIF0 PSDR */
# define SCSPTR0 SCPDR0
# 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_SUBTYPE_SH7723)
# define SCSPTR0 0xa4050160
# define SCSPTR1 0xa405013e
@@ -94,62 +75,38 @@
# 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_SUBTYPE_SH7724)
# define SCIF_ORER 0x0001 /* overrun error bit */
-# define SCSCR_INIT(port) ((port)->type == PORT_SCIFA ? \
- 0x30 /* TIE=0,RIE=0,TE=1,RE=1 */ : \
- 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */ )
#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 */
#elif defined(CONFIG_CPU_SUBTYPE_SH5_101) || defined(CONFIG_CPU_SUBTYPE_SH5_103)
-# 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 */
#elif defined(CONFIG_H83007) || defined(CONFIG_H83068)
-# define SCSCR_INIT(port) 0x30 /* TIE=0,RIE=0,TE=1,RE=1 */
# 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 H8300_SCI_DR(ch) *(volatile char *)(P1DR + h8300_sci_pins[ch].port)
#elif defined(CONFIG_CPU_SUBTYPE_SH7757)
# 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_SUBTYPE_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_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 */
#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 */
-
-#if defined(CONFIG_SH_SH2007)
-/* TIE=0,RIE=0,TE=1,RE=1,REIE=1,CKE1=0 */
-# define SCSCR_INIT(port) 0x38
-#else
-/* TIE=0,RIE=0,TE=1,RE=1,REIE=1,CKE1=1 */
-# define SCSCR_INIT(port) 0x3a
-#endif
-
#elif defined(CONFIG_CPU_SUBTYPE_SH7785) || \
defined(CONFIG_CPU_SUBTYPE_SH7786)
# define SCSPTR0 0xffea0024 /* 16 bit SCIF */
@@ -159,7 +116,6 @@
# define SCSPTR4 0xffee0024 /* 16 bit SCIF */
# define SCSPTR5 0xffef0024 /* 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 */
#elif defined(CONFIG_CPU_SUBTYPE_SH7201) || \
defined(CONFIG_CPU_SUBTYPE_SH7203) || \
defined(CONFIG_CPU_SUBTYPE_SH7206) || \
@@ -174,52 +130,21 @@
# define SCSPTR6 0xfffeB020 /* 16 bit SCIF */
# define SCSPTR7 0xfffeB820 /* 16 bit SCIF */
# endif
-# define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
#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 */
#elif defined(CONFIG_CPU_SUBTYPE_SHX3)
# define SCSPTR0 0xffc30020 /* 16 bit SCIF */
# define SCSPTR1 0xffc40020 /* 16 bit SCIF */
# define SCSPTR2 0xffc50020 /* 16 bit SCIF */
# define SCSPTR3 0xffc60020 /* 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 */
#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_SH7091) || \
- defined(CONFIG_CPU_SUBTYPE_SH7750R) || \
- defined(CONFIG_CPU_SUBTYPE_SH7722) || \
- defined(CONFIG_CPU_SUBTYPE_SH7750S) || \
- defined(CONFIG_CPU_SUBTYPE_SH7751) || \
- defined(CONFIG_CPU_SUBTYPE_SH7751R) || \
- defined(CONFIG_CPU_SUBTYPE_SH7763) || \
- defined(CONFIG_CPU_SUBTYPE_SH7780) || \
- defined(CONFIG_CPU_SUBTYPE_SH7785) || \
- defined(CONFIG_CPU_SUBTYPE_SH7786) || \
- defined(CONFIG_CPU_SUBTYPE_SHX3)
-#define SCI_CTRL_FLAGS_REIE 0x08 /* 7750 SCIF */
-#elif defined(CONFIG_CPU_SUBTYPE_SH7724)
-#define SCI_CTRL_FLAGS_REIE ((port)->type == PORT_SCIFA ? 0 : 8)
-#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 */
@@ -300,23 +225,11 @@
/* 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 ioread8(port->membase + (offset)); \
@@ -445,8 +358,6 @@
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)
@@ -476,8 +387,6 @@ 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)
@@ -503,7 +412,6 @@ SCIF_FNS(SCLSR, 0, 0, 0x28, 16)
#elif defined(CONFIG_CPU_SUBTYPE_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)
@@ -597,64 +505,3 @@ 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_SUBTYPE_SH7780) || \
- defined(CONFIG_CPU_SUBTYPE_SH7785) || \
- defined(CONFIG_CPU_SUBTYPE_SH7786)) && \
- !defined(CONFIG_SH_SH2007)
-#define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(16*bps)-1)
-#elif defined(CONFIG_CPU_SUBTYPE_SH7705) || \
- defined(CONFIG_CPU_SUBTYPE_SH7720) || \
- defined(CONFIG_CPU_SUBTYPE_SH7721) || \
- defined(CONFIG_ARCH_SH73A0) || \
- defined(CONFIG_ARCH_SH7367) || \
- defined(CONFIG_ARCH_SH7377) || \
- defined(CONFIG_ARCH_SH7372)
-#define SCBRR_VALUE(bps, clk) (((clk*2)+16*bps)/(32*bps)-1)
-#elif defined(CONFIG_CPU_SUBTYPE_SH7723) ||\
- defined(CONFIG_CPU_SUBTYPE_SH7724)
-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(__H8300H__) || defined(__H8300S__)
-#define SCBRR_VALUE(bps, clk) (((clk*1000/32)/bps)-1)
-#else /* Generic SH */
-#define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(32*bps)-1)
-#endif