sh: Add SH7720 CPU support.
This adds support for the SH7720 (SH3-DSP) CPU.
Signed-off by: Markus Brunner <super.firetwister@gmail.com>
Signed-off by: Mark Jonas <toertel@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index e4abd3a..81318c5 100644
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -4,6 +4,7 @@
* SuperH on-chip serial module support. (SCI with no FIFO / with FIFO)
*
* Copyright (C) 2002 - 2006 Paul Mundt
+ * Modified to support SH7720 SCIF. Markus Brunner, Mark Jonas (Jul 2007).
*
* based off of the old drivers/char/sh-sci.c by:
*
@@ -301,6 +302,38 @@
}
sci_out(port, SCFCR, fcr_val);
}
+#elif defined(CONFIG_CPU_SUBTYPE_SH7720)
+static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag)
+{
+ unsigned int fcr_val = 0;
+ unsigned short data;
+
+ if (cflag & CRTSCTS) {
+ /* enable RTS/CTS */
+ if (port->mapbase == 0xa4430000) { /* SCIF0 */
+ /* Clear PTCR bit 9-2; enable all scif pins but sck */
+ data = ctrl_inw(PORT_PTCR);
+ ctrl_outw((data & 0xfc03), PORT_PTCR);
+ } else if (port->mapbase == 0xa4438000) { /* SCIF1 */
+ /* Clear PVCR bit 9-2 */
+ data = ctrl_inw(PORT_PVCR);
+ ctrl_outw((data & 0xfc03), PORT_PVCR);
+ }
+ fcr_val |= SCFCR_MCE;
+ } else {
+ if (port->mapbase == 0xa4430000) { /* SCIF0 */
+ /* Clear PTCR bit 5-2; enable only tx and rx */
+ data = ctrl_inw(PORT_PTCR);
+ ctrl_outw((data & 0xffc3), PORT_PTCR);
+ } else if (port->mapbase == 0xa4438000) { /* SCIF1 */
+ /* Clear PVCR bit 5-2 */
+ data = ctrl_inw(PORT_PVCR);
+ ctrl_outw((data & 0xffc3), PORT_PVCR);
+ }
+ }
+ sci_out(port, SCFCR, fcr_val);
+}
+
#elif defined(CONFIG_CPU_SH3)
/* For SH7705, SH7706, SH7707, SH7709, SH7709A, SH7729 */
static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag)
diff --git a/drivers/serial/sh-sci.h b/drivers/serial/sh-sci.h
index 941c504..e89ae29 100644
--- a/drivers/serial/sh-sci.h
+++ b/drivers/serial/sh-sci.h
@@ -10,19 +10,19 @@
* Modified to support SH7300(SH-Mobile) SCIF. Takashi Kusuda (Jun 2003).
* Modified to support H8/300 Series Yoshinori Sato (Feb 2004).
* Removed SH7300 support (Jul 2007).
+ * Modified to support SH7720 SCIF. Markus Brunner, Mark Jonas (Aug 2007).
*/
#include <linux/serial_core.h>
#include <asm/io.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
#if defined(CONFIG_CPU_SUBTYPE_SH7706) || \
defined(CONFIG_CPU_SUBTYPE_SH7707) || \
@@ -46,6 +46,10 @@
*/
# define SCSCR_INIT(port) (port->mapbase == SCIF2) ? 0xF3 : 0xF0
# define SCIF_ONLY
+#elif defined(CONFIG_CPU_SUBTYPE_SH7720)
+# define SCSCR_INIT(port) 0x0030 /* TIE=0,RIE=0,TE=1,RE=1 */
+# define SCIF_ONLY
+#define SCIF_ORER 0x0200 /* overrun error bit */
#elif defined(CONFIG_SH_RTS7751R2D)
# define SCSPTR2 0xFFE80020 /* 16 bit SCIF */
# define SCIF_ORER 0x0001 /* overrun error bit */
@@ -217,7 +221,8 @@
#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_SH7705)
+#if defined(CONFIG_CPU_SUBTYPE_SH7705) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7720)
#define SCIF_ORER 0x0200
#define SCIF_ERRORS ( SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK | SCIF_ORER)
#define SCIF_RFDC_MASK 0x007f
@@ -254,7 +259,8 @@
# define SCxSR_FER(port) SCIF_FER
# define SCxSR_PER(port) SCIF_PER
# define SCxSR_BRK(port) SCIF_BRK
-#if defined(CONFIG_CPU_SUBTYPE_SH7705)
+#if defined(CONFIG_CPU_SUBTYPE_SH7705) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7720)
# 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)
@@ -362,7 +368,8 @@
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)
-#elif defined(CONFIG_CPU_SUBTYPE_SH7705)
+#elif defined(CONFIG_CPU_SUBTYPE_SH7705) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7720)
#define SCIF_FNS(name, scif_offset, scif_size) \
CPU_SCIF_FNS(name, scif_offset, scif_size)
#else
@@ -388,7 +395,8 @@
CPU_SCIF_FNS(name, sh4_scif_offset, sh4_scif_size)
#endif
-#if defined(CONFIG_CPU_SUBTYPE_SH7705)
+#if defined(CONFIG_CPU_SUBTYPE_SH7705) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7720)
SCIF_FNS(SCSMR, 0x00, 16)
SCIF_FNS(SCBRR, 0x04, 8)
@@ -510,7 +518,15 @@
return;
}
}
-
+#elif defined(CONFIG_CPU_SUBTYPE_SH7720)
+static inline int sci_rxd_in(struct uart_port *port)
+{
+ if (port->mapbase == 0xa4430000)
+ return sci_in(port, SCxSR) & 0x0003 ? 1 : 0;
+ else if (port->mapbase == 0xa4438000)
+ return sci_in(port, SCxSR) & 0x0003 ? 1 : 0;
+ return 1;
+}
#elif defined(CONFIG_CPU_SUBTYPE_SH7750) || \
defined(CONFIG_CPU_SUBTYPE_SH7751) || \
defined(CONFIG_CPU_SUBTYPE_SH7751R) || \
@@ -692,7 +708,8 @@
#if defined(CONFIG_CPU_SUBTYPE_SH7780) || \
defined(CONFIG_CPU_SUBTYPE_SH7785)
#define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(16*bps)-1)
-#elif defined(CONFIG_CPU_SUBTYPE_SH7705)
+#elif defined(CONFIG_CPU_SUBTYPE_SH7705) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7720)
#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)