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@@ -42,6 +42,7 @@
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#include <linux/delay.h>
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#include <linux/console.h>
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#include <linux/bitops.h>
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+#include <linux/generic_serial.h>
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#ifdef CONFIG_CPU_FREQ
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#include <linux/notifier.h>
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@@ -53,7 +54,9 @@
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#include <asm/irq.h>
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#include <asm/uaccess.h>
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-#include <linux/generic_serial.h>
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+#if defined(CONFIG_SUPERH) && !defined(CONFIG_SUPERH64)
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+#include <asm/clock.h>
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+#endif
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#ifdef CONFIG_SH_STANDARD_BIOS
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#include <asm/sh_bios.h>
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@@ -86,9 +89,11 @@ static void sci_stop_rx(struct uart_port *port);
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static int sci_request_irq(struct sci_port *port);
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static void sci_free_irq(struct sci_port *port);
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-static struct sci_port sci_ports[SCI_NPORTS];
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+static struct sci_port sci_ports[];
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static struct uart_driver sci_uart_driver;
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+#define SCI_NPORTS sci_uart_driver.nr
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+
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#if defined(CONFIG_SH_STANDARD_BIOS) || defined(CONFIG_SH_KGDB)
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static void handle_error(struct uart_port *port)
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@@ -168,7 +173,7 @@ static void put_string(struct sci_port *sci_port, const char *buffer, int count)
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int usegdb=0;
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#ifdef CONFIG_SH_STANDARD_BIOS
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- /* This call only does a trap the first time it is
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+ /* This call only does a trap the first time it is
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* called, and so is safe to do here unconditionally
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*/
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usegdb |= sh_bios_in_gdb_mode();
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@@ -324,47 +329,46 @@ static void sci_init_pins_sci(struct uart_port* port, unsigned int cflag)
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/* tx mark output*/
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H8300_SCI_DR(ch) |= h8300_sci_pins[ch].tx;
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}
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-#else
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-static void sci_init_pins_sci(struct uart_port *port, unsigned int cflag)
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-{
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-}
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#endif
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#endif
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#if defined(SCIF_ONLY) || defined(SCI_AND_SCIF)
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-#if defined(CONFIG_CPU_SH3)
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-/* For SH7705, SH7707, SH7709, SH7709A, SH7729, SH7300*/
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+#if defined(CONFIG_CPU_SUBTYPE_SH7300)
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+/* SH7300 doesn't use RTS/CTS */
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+static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag)
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+{
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+ sci_out(port, SCFCR, 0);
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+}
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+#elif defined(CONFIG_CPU_SH3)
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+/* For SH7705, SH7707, SH7709, SH7709A, SH7729 */
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static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag)
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{
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unsigned int fcr_val = 0;
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-#if !defined(CONFIG_CPU_SUBTYPE_SH7300) /* SH7300 doesn't use RTS/CTS */
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- {
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- unsigned short data;
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+ unsigned short data;
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+
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+ /* We need to set SCPCR to enable RTS/CTS */
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+ data = ctrl_inw(SCPCR);
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+ /* Clear out SCP7MD1,0, SCP6MD1,0, SCP4MD1,0*/
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+ ctrl_outw(data & 0x0fcf, SCPCR);
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- /* We need to set SCPCR to enable RTS/CTS */
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- data = ctrl_inw(SCPCR);
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- /* Clear out SCP7MD1,0, SCP6MD1,0, SCP4MD1,0*/
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- ctrl_outw(data&0x0fcf, SCPCR);
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- }
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if (cflag & CRTSCTS)
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fcr_val |= SCFCR_MCE;
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else {
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- unsigned short data;
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-
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/* We need to set SCPCR to enable RTS/CTS */
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data = ctrl_inw(SCPCR);
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/* Clear out SCP7MD1,0, SCP4MD1,0,
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Set SCP6MD1,0 = {01} (output) */
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- ctrl_outw((data&0x0fcf)|0x1000, SCPCR);
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+ ctrl_outw((data & 0x0fcf) | 0x1000, SCPCR);
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data = ctrl_inb(SCPDR);
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/* Set /RTS2 (bit6) = 0 */
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- ctrl_outb(data&0xbf, SCPDR);
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+ ctrl_outb(data & 0xbf, SCPDR);
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}
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-#endif
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+
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sci_out(port, SCFCR, fcr_val);
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}
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+#if defined(CONFIG_CPU_SUBTYPE_SH7707) || defined(CONFIG_CPU_SUBTYPE_SH7709)
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static void sci_init_pins_irda(struct uart_port *port, unsigned int cflag)
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{
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unsigned int fcr_val = 0;
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@@ -374,7 +378,7 @@ static void sci_init_pins_irda(struct uart_port *port, unsigned int cflag)
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sci_out(port, SCFCR, fcr_val);
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}
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-
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+#endif
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#else
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/* For SH7750 */
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@@ -385,7 +389,11 @@ static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag)
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if (cflag & CRTSCTS) {
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fcr_val |= SCFCR_MCE;
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} else {
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+#ifdef CONFIG_CPU_SUBTYPE_SH7780
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+ ctrl_outw(0x0080, SCSPTR0); /* Set RTS = 1 */
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+#else
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ctrl_outw(0x0080, SCSPTR2); /* Set RTS = 1 */
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+#endif
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}
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sci_out(port, SCFCR, fcr_val);
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}
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@@ -422,7 +430,11 @@ static void sci_transmit_chars(struct uart_port *port)
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#if !defined(SCI_ONLY)
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if (port->type == PORT_SCIF) {
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+#if defined(CONFIG_CPU_SUBTYPE_SH7760) || defined(CONFIG_CPU_SUBTYPE_SH7780)
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+ txroom = SCIF_TXROOM_MAX - (sci_in(port, SCTFDR) & 0x7f);
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+#else
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txroom = SCIF_TXROOM_MAX - (sci_in(port, SCFDR)>>8);
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+#endif
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} else {
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txroom = (sci_in(port, SCxSR) & SCI_TDRE)?1:0;
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}
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@@ -491,7 +503,11 @@ static inline void sci_receive_chars(struct uart_port *port,
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while (1) {
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#if !defined(SCI_ONLY)
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if (port->type == PORT_SCIF) {
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+#if defined(CONFIG_CPU_SUBTYPE_SH7760) || defined(CONFIG_CPU_SUBTYPE_SH7780)
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+ count = sci_in(port, SCRFDR) & 0x7f;
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+#else
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count = sci_in(port, SCFDR)&SCIF_RFDC_MASK ;
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+#endif
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} else {
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count = (sci_in(port, SCxSR)&SCxSR_RDxF(port))?1:0;
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}
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@@ -652,7 +668,7 @@ static inline int sci_handle_breaks(struct uart_port *port)
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struct tty_struct *tty = port->info->tty;
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struct sci_port *s = &sci_ports[port->line];
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- if (!s->break_flag && status & SCxSR_BRK(port))
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+ if (!s->break_flag && status & SCxSR_BRK(port)) {
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#if defined(CONFIG_CPU_SH3)
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/* Debounce break */
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s->break_flag = 1;
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@@ -783,6 +799,7 @@ static int sci_notifier(struct notifier_block *self, unsigned long phase, void *
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(phase == CPUFREQ_RESUMECHANGE)){
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for (i = 0; i < SCI_NPORTS; i++) {
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struct uart_port *port = &sci_ports[i].port;
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+ struct clk *clk;
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/*
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* Update the uartclk per-port if frequency has
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@@ -795,7 +812,9 @@ static int sci_notifier(struct notifier_block *self, unsigned long phase, void *
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*
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* Clean this up later..
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*/
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- port->uartclk = current_cpu_data.module_clock * 16;
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+ clk = clk_get("module_clk");
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+ port->uartclk = clk_get_rate(clk) * 16;
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+ clk_put(clk);
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}
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printk("%s: got a postchange notification for cpu %d (old %d, new %d)\n",
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@@ -1008,15 +1027,20 @@ static void sci_set_termios(struct uart_port *port, struct termios *termios,
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sci_out(port, SCSMR, smr_val);
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switch (baud) {
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- case 0: t = -1; break;
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- case 2400: t = BPS_2400; break;
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- case 4800: t = BPS_4800; break;
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- case 9600: t = BPS_9600; break;
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- case 19200: t = BPS_19200; break;
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- case 38400: t = BPS_38400; break;
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- case 57600: t = BPS_57600; break;
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- case 115200: t = BPS_115200; break;
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- default: t = SCBRR_VALUE(baud); break;
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+ case 0:
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+ t = -1;
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+ break;
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+ default:
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+ {
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+#if defined(CONFIG_SUPERH) && !defined(CONFIG_SUPERH64)
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+ struct clk *clk = clk_get("module_clk");
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+ t = SCBRR_VALUE(baud, clk_get_rate(clk));
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+ clk_put(clk);
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+#else
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+ t = SCBRR_VALUE(baud);
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+#endif
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+ }
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+ break;
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}
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if (t > 0) {
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@@ -1030,7 +1054,9 @@ static void sci_set_termios(struct uart_port *port, struct termios *termios,
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udelay((1000000+(baud-1)) / baud); /* Wait one bit interval */
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}
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- s->init_pins(port, termios->c_cflag);
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+ if (likely(s->init_pins))
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+ s->init_pins(port, termios->c_cflag);
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+
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sci_out(port, SCSCR, SCSCR_INIT(port));
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if ((termios->c_cflag & CREAD) != 0)
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@@ -1107,7 +1133,7 @@ static struct uart_ops sci_uart_ops = {
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.verify_port = sci_verify_port,
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};
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-static struct sci_port sci_ports[SCI_NPORTS] = {
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+static struct sci_port sci_ports[] = {
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#if defined(CONFIG_CPU_SUBTYPE_SH7708)
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{
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.port = {
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@@ -1121,7 +1147,6 @@ static struct sci_port sci_ports[SCI_NPORTS] = {
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},
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.type = PORT_SCI,
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.irqs = SCI_IRQS,
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- .init_pins = sci_init_pins_sci,
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},
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#elif defined(CONFIG_CPU_SUBTYPE_SH7705)
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{
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@@ -1165,7 +1190,6 @@ static struct sci_port sci_ports[SCI_NPORTS] = {
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},
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.type = PORT_SCI,
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.irqs = SCI_IRQS,
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- .init_pins = sci_init_pins_sci,
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},
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{
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.port = {
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@@ -1225,7 +1249,7 @@ static struct sci_port sci_ports[SCI_NPORTS] = {
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.irqs = SH73180_SCIF_IRQS,
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.init_pins = sci_init_pins_scif,
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},
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-#elif defined(CONFIG_SH_RTS7751R2D)
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+#elif defined(CONFIG_CPU_SUBTYPE_SH4_202)
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{
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.port = {
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.membase = (void *)0xffe80000,
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@@ -1253,7 +1277,6 @@ static struct sci_port sci_ports[SCI_NPORTS] = {
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},
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.type = PORT_SCI,
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.irqs = SCI_IRQS,
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- .init_pins = sci_init_pins_sci,
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},
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{
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.port = {
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@@ -1312,21 +1335,6 @@ static struct sci_port sci_ports[SCI_NPORTS] = {
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.irqs = SH7760_SCIF2_IRQS,
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.init_pins = sci_init_pins_scif,
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},
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-#elif defined(CONFIG_CPU_SUBTYPE_SH4_202)
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- {
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- .port = {
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- .membase = (void *)0xffe80000,
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- .mapbase = 0xffe80000,
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- .iotype = UPIO_MEM,
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- .irq = 43,
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- .ops = &sci_uart_ops,
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- .flags = UPF_BOOT_AUTOCONF,
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- .line = 0,
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- },
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- .type = PORT_SCIF,
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- .irqs = SH4_SCIF_IRQS,
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- .init_pins = sci_init_pins_scif,
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- },
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#elif defined(CONFIG_CPU_SUBTYPE_ST40STB1)
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{
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.port = {
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@@ -1455,6 +1463,78 @@ static struct sci_port sci_ports[SCI_NPORTS] = {
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.irqs = H8S_SCI_IRQS2,
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.init_pins = sci_init_pins_sci,
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},
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+#elif defined(CONFIG_CPU_SUBTYPE_SH7770)
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+ {
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+ .port = {
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+ .membase = (void *)0xff923000,
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+ .mapbase = 0xff923000,
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+ .iotype = SERIAL_IO_MEM,
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+ .irq = 61,
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+ .ops = &sci_uart_ops,
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+ .flags = ASYNC_BOOT_AUTOCONF,
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+ .line = 0,
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+ },
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+ .type = PORT_SCIF,
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+ .irqs = SH7770_SCIF0_IRQS,
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+ .init_pins = sci_init_pins_scif,
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+ },
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+ {
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+ .port = {
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+ .membase = (void *)0xff924000,
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+ .mapbase = 0xff924000,
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+ .iotype = SERIAL_IO_MEM,
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+ .irq = 62,
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+ .ops = &sci_uart_ops,
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+ .flags = ASYNC_BOOT_AUTOCONF,
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+ .line = 1,
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+ },
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+ .type = PORT_SCIF,
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+ .irqs = SH7770_SCIF1_IRQS,
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+ .init_pins = sci_init_pins_scif,
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+ },
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+ {
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+ .port = {
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+ .membase = (void *)0xff925000,
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+ .mapbase = 0xff925000,
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+ .iotype = SERIAL_IO_MEM,
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+ .irq = 63,
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+ .ops = &sci_uart_ops,
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+ .flags = ASYNC_BOOT_AUTOCONF,
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+ .line = 2,
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+ },
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+ .type = PORT_SCIF,
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+ .irqs = SH7770_SCIF2_IRQS,
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+ .init_pins = sci_init_pins_scif,
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+ },
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+#elif defined(CONFIG_CPU_SUBTYPE_SH7780)
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+ {
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+ .port = {
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+ .membase = (void *)0xffe00000,
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+ .mapbase = 0xffe00000,
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+ .iotype = SERIAL_IO_MEM,
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+ .irq = 43,
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+ .ops = &sci_uart_ops,
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+ .flags = ASYNC_BOOT_AUTOCONF,
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+ .line = 0,
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+ },
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+ .type = PORT_SCIF,
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+ .irqs = SH7780_SCIF0_IRQS,
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+ .init_pins = sci_init_pins_scif,
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+ },
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+ {
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+ .port = {
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+ .membase = (void *)0xffe10000,
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+ .mapbase = 0xffe10000,
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+ .iotype = SERIAL_IO_MEM,
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+ .irq = 79,
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+ .ops = &sci_uart_ops,
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+ .flags = ASYNC_BOOT_AUTOCONF,
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+ .line = 1,
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+ },
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+ .type = PORT_SCIF,
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+ .irqs = SH7780_SCIF1_IRQS,
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+ .init_pins = sci_init_pins_scif,
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+ },
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#else
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#error "CPU subtype not defined"
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#endif
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@@ -1480,9 +1560,6 @@ static int __init serial_console_setup(struct console *co, char *options)
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int flow = 'n';
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int ret;
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- if (co->index >= SCI_NPORTS)
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- co->index = 0;
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-
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serial_console_port = &sci_ports[co->index];
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port = &serial_console_port->port;
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port->type = serial_console_port->type;
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@@ -1496,13 +1573,20 @@ static int __init serial_console_setup(struct console *co, char *options)
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* We need to set the initial uartclk here, since otherwise it will
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* only ever be setup at sci_init() time.
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*/
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-#if !defined(__H8300H__) && !defined(__H8300S__)
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- port->uartclk = current_cpu_data.module_clock * 16;
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-#else
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+#if defined(__H8300H__) || defined(__H8300S__)
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port->uartclk = CONFIG_CPU_CLOCK;
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-#endif
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+
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#if defined(__H8300S__)
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h8300_sci_enable(port, sci_enable);
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+#endif
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+#elif defined(CONFIG_SUPERH64)
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+ port->uartclk = current_cpu_info.module_clock * 16;
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+#else
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+ {
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+ struct clk *clk = clk_get("module_clk");
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+ port->uartclk = clk_get_rate(clk) * 16;
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+ clk_put(clk);
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+ }
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#endif
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if (options)
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uart_parse_options(options, &baud, &parity, &bits, &flow);
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@@ -1566,7 +1650,7 @@ int __init kgdb_console_setup(struct console *co, char *options)
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int parity = 'n';
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int flow = 'n';
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- if (co->index >= SCI_NPORTS || co->index != kgdb_portnum)
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+ if (co->index != kgdb_portnum)
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co->index = kgdb_portnum;
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if (options)
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@@ -1606,7 +1690,7 @@ console_initcall(kgdb_console_init);
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#elif defined(CONFIG_SERIAL_SH_SCI_CONSOLE)
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#define SCI_CONSOLE &serial_console
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#else
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-#define SCI_CONSOLE 0
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+#define SCI_CONSOLE 0
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#endif
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static char banner[] __initdata =
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@@ -1621,7 +1705,6 @@ static struct uart_driver sci_uart_driver = {
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.dev_name = "ttySC",
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.major = SCI_MAJOR,
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.minor = SCI_MINOR_START,
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- .nr = SCI_NPORTS,
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.cons = SCI_CONSOLE,
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};
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@@ -1631,15 +1714,21 @@ static int __init sci_init(void)
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|
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|
printk("%s", banner);
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|
|
|
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|
+ sci_uart_driver.nr = ARRAY_SIZE(sci_ports);
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|
|
+
|
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|
ret = uart_register_driver(&sci_uart_driver);
|
|
|
if (ret == 0) {
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|
for (chan = 0; chan < SCI_NPORTS; chan++) {
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|
|
struct sci_port *sciport = &sci_ports[chan];
|
|
|
|
|
|
-#if !defined(__H8300H__) && !defined(__H8300S__)
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|
- sciport->port.uartclk = (current_cpu_data.module_clock * 16);
|
|
|
-#else
|
|
|
+#if defined(__H8300H__) || defined(__H8300S__)
|
|
|
sciport->port.uartclk = CONFIG_CPU_CLOCK;
|
|
|
+#elif defined(CONFIG_SUPERH64)
|
|
|
+ sciport->port.uartclk = current_cpu_info.module_clock * 16;
|
|
|
+#else
|
|
|
+ struct clk *clk = clk_get("module_clk");
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|
|
+ sciport->port.uartclk = clk_get_rate(clk) * 16;
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|
|
+ clk_put(clk);
|
|
|
#endif
|
|
|
uart_add_one_port(&sci_uart_driver, &sciport->port);
|
|
|
sciport->break_timer.data = (unsigned long)sciport;
|