sh: Add SH7785 Highlander board support (R7785RP).
This adds preliminary support for the SH7785-based Highlander board.
Some of the Highlander support code is reordered so that most of it
can be reused directly.
This also plugs in missing SH7785 checks in the places that need it,
as this is the first board to support the CPU.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index 4b17f84..94deebd 100644
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -62,7 +62,7 @@
unsigned int type;
/* Port IRQs: ERI, RXI, TXI, BRI (optional) */
- unsigned int irqs[SCIx_NR_IRQS];
+ unsigned int irqs[SCIx_NR_IRQS];
/* Port pin configuration */
void (*init_pins)(struct uart_port *port,
@@ -351,7 +351,7 @@
} else {
#ifdef CONFIG_CPU_SUBTYPE_SH7343
/* Nothing */
-#elif defined(CONFIG_CPU_SUBTYPE_SH7780)
+#elif defined(CONFIG_CPU_SUBTYPE_SH7780) || defined(CONFIG_CPU_SUBTYPE_SH7785)
ctrl_outw(0x0080, SCSPTR0); /* Set RTS = 1 */
#else
ctrl_outw(0x0080, SCSPTR2); /* Set RTS = 1 */
@@ -361,7 +361,9 @@
}
#endif
-#if defined(CONFIG_CPU_SUBTYPE_SH7760) || defined(CONFIG_CPU_SUBTYPE_SH7780)
+#if defined(CONFIG_CPU_SUBTYPE_SH7760) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7780) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7785)
static inline int scif_txroom(struct uart_port *port)
{
return SCIF_TXROOM_MAX - (sci_in(port, SCTFDR) & 0x7f);
@@ -1368,9 +1370,19 @@
struct plat_sci_port *p = dev->dev.platform_data;
int i;
- for (i = 0; p && p->flags != 0 && i < SCI_NPORTS; p++, i++) {
+ for (i = 0; p && p->flags != 0; p++, i++) {
struct sci_port *sciport = &sci_ports[i];
+ /* Sanity check */
+ if (unlikely(i == SCI_NPORTS)) {
+ dev_notice(&dev->dev, "Attempting to register port "
+ "%d when only %d are available.\n",
+ i+1, SCI_NPORTS);
+ dev_notice(&dev->dev, "Consider bumping "
+ "CONFIG_SERIAL_SH_SCI_NR_UARTS!\n");
+ break;
+ }
+
sciport->port.mapbase = p->mapbase;
/*
diff --git a/drivers/serial/sh-sci.h b/drivers/serial/sh-sci.h
index 77f7d63..854153a 100644
--- a/drivers/serial/sh-sci.h
+++ b/drivers/serial/sh-sci.h
@@ -140,6 +140,16 @@
# 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
+#elif defined(CONFIG_CPU_SUBTYPE_SH7785)
+# define SCSPTR0 0xffea0024 /* 16 bit SCIF */
+# define SCSPTR1 0xffeb0024 /* 16 bit SCIF */
+# define SCSPTR2 0xffec0024 /* 16 bit SCIF */
+# define SCSPTR3 0xffed0024 /* 16 bit SCIF */
+# define SCSPTR4 0xffee0024 /* 16 bit SCIF */
+# define SCSPTR5 0xffef0024 /* 16 bit SCIF */
+# define SCIF_OPER 0x0001 /* Overrun error bit */
+# define SCSCR_INIT(port) 0x3a /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
+# define SCIF_ONLY
#elif defined(CONFIG_CPU_SUBTYPE_SH7206)
# define SCSPTR0 0xfffe8020 /* 16 bit SCIF */
# define SCSPTR1 0xfffe8820 /* 16 bit SCIF */
@@ -163,7 +173,10 @@
#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_SH7751) || defined(CONFIG_CPU_SUBTYPE_SH7780)
+#if defined(CONFIG_CPU_SUBTYPE_SH7750) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7751) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7780) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7785)
#define SCI_CTRL_FLAGS_REIE 0x08 /* 7750 SCIF */
#else
#define SCI_CTRL_FLAGS_REIE 0
@@ -385,7 +398,9 @@
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_SUBTYPE_SH7760) || defined(CONFIG_CPU_SUBTYPE_SH7780)
+#if defined(CONFIG_CPU_SUBTYPE_SH7760) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7780) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7785)
SCIF_FNS(SCFDR, 0x0e, 16, 0x1C, 16)
SCIF_FNS(SCTFDR, 0x0e, 16, 0x1C, 16)
SCIF_FNS(SCRFDR, 0x0e, 16, 0x20, 16)
@@ -576,6 +591,23 @@
return ctrl_inw(SCSPTR1) & 0x0001 ? 1 : 0; /* SCIF */
return 1;
}
+#elif defined(CONFIG_CPU_SUBTYPE_SH7785)
+static inline int sci_rxd_in(struct uart_port *port)
+{
+ if (port->mapbase == 0xffea0000)
+ return ctrl_inw(SCSPTR0) & 0x0001 ? 1 : 0; /* SCIF */
+ if (port->mapbase == 0xffeb0000)
+ return ctrl_inw(SCSPTR1) & 0x0001 ? 1 : 0; /* SCIF */
+ if (port->mapbase == 0xffec0000)
+ return ctrl_inw(SCSPTR2) & 0x0001 ? 1 : 0; /* SCIF */
+ if (port->mapbase == 0xffed0000)
+ return ctrl_inw(SCSPTR3) & 0x0001 ? 1 : 0; /* SCIF */
+ if (port->mapbase == 0xffee0000)
+ return ctrl_inw(SCSPTR4) & 0x0001 ? 1 : 0; /* SCIF */
+ if (port->mapbase == 0xffef0000)
+ return ctrl_inw(SCSPTR5) & 0x0001 ? 1 : 0; /* SCIF */
+ return 1;
+}
#elif defined(CONFIG_CPU_SUBTYPE_SH7206)
static inline int sci_rxd_in(struct uart_port *port)
{
@@ -634,7 +666,9 @@
* -- Mitch Davis - 15 Jul 2000
*/
-#if defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7780)
+#if defined(CONFIG_CPU_SUBTYPE_SH7300) || \
+ 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)
#define SCBRR_VALUE(bps, clk) (((clk*2)+16*bps)/(32*bps)-1)