x86: Use CONFIG_SERIAL_MULTI

Signed-off-by: Graeme Russ <graeme.russ@gmail.com>

7 files changed, 32 insertions, 516 deletions

diff --git a/arch/i386/cpu/Makefile b/arch/i386/cpu/Makefile
index c658c6e..bb0a48f 100644
--- a/arch/i386/cpu/Makefile
+++ b/arch/i386/cpu/Makefile
@@ -29,7 +29,7 @@ include $(TOPDIR)/config.mk
 LIB	= $(obj)lib$(CPU).a
 
 START	= start.o start16.o resetvec.o
-COBJS	= serial.o interrupts.o cpu.o
+COBJS	= interrupts.o cpu.o
 
 SRCS	:= $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
diff --git a/arch/i386/cpu/serial.c b/arch/i386/cpu/serial.c
deleted file mode 100644
index e7025a3..0000000
--- a/arch/i386/cpu/serial.c
+++ /dev/null
@@ -1,506 +0,0 @@
-/*
- * (C) Copyright 2002
- * Daniel Engström, Omicron Ceti AB, daniel@omicron.se
- *
- * (C) Copyright 2000
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-/*------------------------------------------------------------------------------+ */
-
-/*
- * This source code is dual-licensed.  You may use it under the terms of the
- * GNU General Public License version 2, or under the license below.
- *
- * This source code has been made available to you by IBM on an AS-IS
- * basis.  Anyone receiving this source is licensed under IBM
- * copyrights to use it in any way he or she deems fit, including
- * copying it, modifying it, compiling it, and redistributing it either
- * with or without modifications.  No license under IBM patents or
- * patent applications is to be implied by the copyright license.
- *
- * Any user of this software should understand that IBM cannot provide
- * technical support for this software and will not be responsible for
- * any consequences resulting from the use of this software.
- *
- * Any person who transfers this source code or any derivative work
- * must include the IBM copyright notice, this paragraph, and the
- * preceding two paragraphs in the transferred software.
- *
- * COPYRIGHT   I B M   CORPORATION 1995
- * LICENSED MATERIAL  -  PROGRAM PROPERTY OF I B M
- */
-/*------------------------------------------------------------------------------- */
-
-#include <common.h>
-#include <watchdog.h>
-#include <asm/io.h>
-#include <asm/ibmpc.h>
-
-#ifdef CONFIG_SERIAL_SOFTWARE_FIFO
-#include <malloc.h>
-#endif
-
-DECLARE_GLOBAL_DATA_PTR;
-
-#define UART_RBR    0x00
-#define UART_THR    0x00
-#define UART_IER    0x01
-#define UART_IIR    0x02
-#define UART_FCR    0x02
-#define UART_LCR    0x03
-#define UART_MCR    0x04
-#define UART_LSR    0x05
-#define UART_MSR    0x06
-#define UART_SCR    0x07
-#define UART_DLL    0x00
-#define UART_DLM    0x01
-
-/*-----------------------------------------------------------------------------+
-  | Line Status Register.
-  +-----------------------------------------------------------------------------*/
-#define asyncLSRDataReady1            0x01
-#define asyncLSROverrunError1         0x02
-#define asyncLSRParityError1          0x04
-#define asyncLSRFramingError1         0x08
-#define asyncLSRBreakInterrupt1       0x10
-#define asyncLSRTxHoldEmpty1          0x20
-#define asyncLSRTxShiftEmpty1         0x40
-#define asyncLSRRxFifoError1          0x80
-
-
-#ifdef CONFIG_SERIAL_SOFTWARE_FIFO
-/*-----------------------------------------------------------------------------+
-  | Fifo
-  +-----------------------------------------------------------------------------*/
-typedef struct {
-	char *rx_buffer;
-	ulong rx_put;
-	ulong rx_get;
-	int cts;
-} serial_buffer_t;
-
-volatile serial_buffer_t buf_info;
-static int serial_buffer_active=0;
-#endif
-
-
-static int serial_div(int baudrate)
-{
-
-	switch (baudrate) {
-	case 1200:
-		return 96;
-	case 9600:
-		return 12;
-	case 19200:
-		return 6;
-	case 38400:
-		return 3;
-	case 57600:
-		return 2;
-	case 115200:
-		return 1;
-	}
-
-	return 12;
-}
-
-
-/*
- * Minimal serial functions needed to use one of the SMC ports
- * as serial console interface.
- */
-
-int serial_init(void)
-{
-	volatile char val;
-	int bdiv = serial_div(gd->baudrate);
-
-	outb(0x80, UART0_BASE + UART_LCR);	/* set DLAB bit */
-	outb(bdiv, UART0_BASE + UART_DLL);	/* set baudrate divisor */
-	outb(bdiv >> 8, UART0_BASE + UART_DLM);/* set baudrate divisor */
-	outb(0x03, UART0_BASE + UART_LCR);	/* clear DLAB; set 8 bits, no parity */
-	outb(0x01, UART0_BASE + UART_FCR);	/* enable FIFO */
-	outb(0x0b, UART0_BASE + UART_MCR);	/* Set DTR and RTS active */
-	val = inb(UART0_BASE + UART_LSR);	/* clear line status */
-	val = inb(UART0_BASE + UART_RBR);	/* read receive buffer */
-	outb(0x00, UART0_BASE + UART_SCR);	/* set scratchpad */
-	outb(0x00, UART0_BASE + UART_IER);	/* set interrupt enable reg */
-
-	return 0;
-}
-
-
-void serial_setbrg(void)
-{
-	unsigned short bdiv;
-
-	bdiv = serial_div(gd->baudrate);
-
-	outb(0x80, UART0_BASE + UART_LCR);	/* set DLAB bit */
-	outb(bdiv&0xff, UART0_BASE + UART_DLL);	/* set baudrate divisor */
-	outb(bdiv >> 8, UART0_BASE + UART_DLM);/* set baudrate divisor */
-	outb(0x03, UART0_BASE + UART_LCR);	/* clear DLAB; set 8 bits, no parity */
-}
-
-
-void serial_putc(const char c)
-{
-	int i;
-
-	if (c == '\n')
-		serial_putc ('\r');
-
-	/* check THRE bit, wait for transmiter available */
-	for (i = 1; i < 3500; i++) {
-		if ((inb (UART0_BASE + UART_LSR) & 0x20) == 0x20) {
-			break;
-		}
-		udelay(100);
-	}
-	outb(c, UART0_BASE + UART_THR);	/* put character out */
-}
-
-
-void serial_puts(const char *s)
-{
-	while (*s) {
-		serial_putc(*s++);
-	}
-}
-
-
-int serial_getc(void)
-{
-	unsigned char status = 0;
-
-#ifdef CONFIG_SERIAL_SOFTWARE_FIFO
-	if (serial_buffer_active) {
-		return serial_buffered_getc();
-	}
-#endif
-
-	while (1) {
-#if defined(CONFIG_HW_WATCHDOG)
-		WATCHDOG_RESET();	/* Reset HW Watchdog, if needed */
-#endif	/* CONFIG_HW_WATCHDOG */
-		status = inb(UART0_BASE + UART_LSR);
-		if ((status & asyncLSRDataReady1) != 0x0) {
-			break;
-		}
-		if ((status & ( asyncLSRFramingError1 |
-				asyncLSROverrunError1 |
-				asyncLSRParityError1  |
-				asyncLSRBreakInterrupt1 )) != 0) {
-			outb(asyncLSRFramingError1 |
-			      asyncLSROverrunError1 |
-			      asyncLSRParityError1  |
-			      asyncLSRBreakInterrupt1, UART0_BASE + UART_LSR);
-		}
-	}
-	return (0x000000ff & (int) inb (UART0_BASE));
-}
-
-
-int serial_tstc(void)
-{
-	unsigned char status;
-
-#ifdef CONFIG_SERIAL_SOFTWARE_FIFO
-	if (serial_buffer_active) {
-		return serial_buffered_tstc();
-	}
-#endif
-
-	status = inb(UART0_BASE + UART_LSR);
-	if ((status & asyncLSRDataReady1) != 0x0) {
-		return (1);
-	}
-	if ((status & ( asyncLSRFramingError1 |
-			asyncLSROverrunError1 |
-			asyncLSRParityError1  |
-			asyncLSRBreakInterrupt1 )) != 0) {
-		outb(asyncLSRFramingError1 |
-		      asyncLSROverrunError1 |
-		      asyncLSRParityError1  |
-		      asyncLSRBreakInterrupt1, UART0_BASE + UART_LSR);
-	}
-	return 0;
-}
-
-
-#ifdef CONFIG_SERIAL_SOFTWARE_FIFO
-
-void serial_isr(void *arg)
-{
-	int space;
-	int c;
-	int rx_put = buf_info.rx_put;
-
-	if (buf_info.rx_get <= rx_put) {
-		space = CONFIG_SERIAL_SOFTWARE_FIFO - (rx_put - buf_info.rx_get);
-	} else {
-		space = buf_info.rx_get - rx_put;
-	}
-
-	while (inb(UART0_BASE + UART_LSR) & 1) {
-		c = inb(UART0_BASE);
-		if (space) {
-			buf_info.rx_buffer[rx_put++] = c;
-			space--;
-
-			if (rx_put == buf_info.rx_get) {
-				buf_info.rx_get++;
-				if (rx_put == CONFIG_SERIAL_SOFTWARE_FIFO) {
-					buf_info.rx_get = 0;
-				}
-			}
-
-			if (rx_put == CONFIG_SERIAL_SOFTWARE_FIFO) {
-				rx_put = 0;
-				if (0 == buf_info.rx_get) {
-					buf_info.rx_get = 1;
-				}
-
-			}
-
-		}
-		if (space < CONFIG_SERIAL_SOFTWARE_FIFO / 4) {
-			/* Stop flow by setting RTS inactive */
-			outb(inb(UART0_BASE + UART_MCR) & (0xFF ^ 0x02),
-			      UART0_BASE + UART_MCR);
-		}
-	}
-	buf_info.rx_put = rx_put;
-}
-
-void serial_buffered_init(void)
-{
-	serial_puts ("Switching to interrupt driven serial input mode.\n");
-	buf_info.rx_buffer = malloc (CONFIG_SERIAL_SOFTWARE_FIFO);
-	buf_info.rx_put = 0;
-	buf_info.rx_get = 0;
-
-	if (inb (UART0_BASE + UART_MSR) & 0x10) {
-		serial_puts ("Check CTS signal present on serial port: OK.\n");
-		buf_info.cts = 1;
-	} else {
-		serial_puts ("WARNING: CTS signal not present on serial port.\n");
-		buf_info.cts = 0;
-	}
-
-	irq_install_handler ( VECNUM_U0 /*UART0 */ /*int vec */ ,
-			      serial_isr /*interrupt_handler_t *handler */ ,
-			      (void *) &buf_info /*void *arg */ );
-
-	/* Enable "RX Data Available" Interrupt on UART */
-	/* outb(inb(UART0_BASE + UART_IER) |0x01, UART0_BASE + UART_IER); */
-	outb(0x01, UART0_BASE + UART_IER);
-
-	/* Set DTR and RTS active, enable interrupts  */
-	outb(inb (UART0_BASE + UART_MCR) | 0x0b, UART0_BASE + UART_MCR);
-
-	/* Setup UART FIFO: RX trigger level: 1 byte, Enable FIFO */
-	outb( /*(1 << 6) |*/  1, UART0_BASE + UART_FCR);
-
-	serial_buffer_active = 1;
-}
-
-void serial_buffered_putc (const char c)
-{
-	int i;
-	/* Wait for CTS */
-#if defined(CONFIG_HW_WATCHDOG)
-	while (!(inb (UART0_BASE + UART_MSR) & 0x10))
-		WATCHDOG_RESET ();
-#else
-	if (buf_info.cts)  {
-		for (i=0;i<1000;i++) {
-			if ((inb (UART0_BASE + UART_MSR) & 0x10)) {
-				break;
-			}
-		}
-		if (i!=1000) {
-			buf_info.cts = 0;
-		}
-	} else {
-		if ((inb (UART0_BASE + UART_MSR) & 0x10)) {
-			buf_info.cts = 1;
-		}
-	}
-
-#endif
-	serial_putc (c);
-}
-
-void serial_buffered_puts(const char *s)
-{
-	serial_puts (s);
-}
-
-int serial_buffered_getc(void)
-{
-	int space;
-	int c;
-	int rx_get = buf_info.rx_get;
-	int rx_put;
-
-#if defined(CONFIG_HW_WATCHDOG)
-	while (rx_get == buf_info.rx_put)
-		WATCHDOG_RESET ();
-#else
-	while (rx_get == buf_info.rx_put);
-#endif
-	c = buf_info.rx_buffer[rx_get++];
-	if (rx_get == CONFIG_SERIAL_SOFTWARE_FIFO) {
-		rx_get = 0;
-	}
-	buf_info.rx_get = rx_get;
-
-	rx_put = buf_info.rx_put;
-	if (rx_get <= rx_put) {
-		space = CONFIG_SERIAL_SOFTWARE_FIFO - (rx_put - rx_get);
-	} else {
-		space = rx_get - rx_put;
-	}
-	if (space > CONFIG_SERIAL_SOFTWARE_FIFO / 2) {
-		/* Start flow by setting RTS active */
-		outb(inb (UART0_BASE + UART_MCR) | 0x02, UART0_BASE + UART_MCR);
-	}
-
-	return c;
-}
-
-int serial_buffered_tstc(void)
-{
-	return (buf_info.rx_get != buf_info.rx_put) ? 1 : 0;
-}
-
-#endif	/* CONFIG_SERIAL_SOFTWARE_FIFO */
-
-
-#if defined(CONFIG_CMD_KGDB)
-/*
-  AS HARNOIS : according to CONFIG_KGDB_SER_INDEX kgdb uses serial port
-  number 0 or number 1
-  - if CONFIG_KGDB_SER_INDEX = 1 => serial port number 0 :
-  configuration has been already done
-  - if CONFIG_KGDB_SER_INDEX = 2 => serial port number 1 :
-  configure port 1 for serial I/O with rate = CONFIG_KGDB_BAUDRATE
-*/
-#if (CONFIG_KGDB_SER_INDEX & 2)
-void kgdb_serial_init(void)
-{
-	volatile char val;
-	bdiv = serial_div (CONFIG_KGDB_BAUDRATE);
-
-	/*
-	 * Init onboard 16550 UART
-	 */
-	outb(0x80, UART1_BASE + UART_LCR);	/* set DLAB bit */
-	outb((bdiv & 0xff), UART1_BASE + UART_DLL);	/* set divisor for 9600 baud */
-	outb((bdiv >> 8  ), UART1_BASE + UART_DLM);	/* set divisor for 9600 baud */
-	outb(0x03, UART1_BASE + UART_LCR);	/* line control 8 bits no parity */
-	outb(0x00, UART1_BASE + UART_FCR);	/* disable FIFO */
-	outb(0x00, UART1_BASE + UART_MCR);	/* no modem control DTR RTS */
-	val = inb(UART1_BASE + UART_LSR);	/* clear line status */
-	val = inb(UART1_BASE + UART_RBR);	/* read receive buffer */
-	outb(0x00, UART1_BASE + UART_SCR);	/* set scratchpad */
-	outb(0x00, UART1_BASE + UART_IER);	/* set interrupt enable reg */
-}
-
-
-void putDebugChar(const char c)
-{
-	if (c == '\n')
-		serial_putc ('\r');
-
-	outb(c, UART1_BASE + UART_THR);	/* put character out */
-
-	/* check THRE bit, wait for transfer done */
-	while ((inb(UART1_BASE + UART_LSR) & 0x20) != 0x20);
-}
-
-
-void putDebugStr(const char *s)
-{
-	while (*s) {
-		serial_putc(*s++);
-	}
-}
-
-
-int getDebugChar(void)
-{
-	unsigned char status = 0;
-
-	while (1) {
-		status = inb(UART1_BASE + UART_LSR);
-		if ((status & asyncLSRDataReady1) != 0x0) {
-			break;
-		}
-		if ((status & ( asyncLSRFramingError1 |
-				asyncLSROverrunError1 |
-				asyncLSRParityError1  |
-				asyncLSRBreakInterrupt1 )) != 0) {
-			outb(asyncLSRFramingError1 |
-			     asyncLSROverrunError1 |
-			     asyncLSRParityError1  |
-			     asyncLSRBreakInterrupt1, UART1_BASE + UART_LSR);
-		}
-	}
-	return (0x000000ff & (int) inb(UART1_BASE));
-}
-
-
-void kgdb_interruptible(int yes)
-{
-	return;
-}
-
-#else	/* ! (CONFIG_KGDB_SER_INDEX & 2) */
-
-void kgdb_serial_init(void)
-{
-	serial_printf ("[on serial] ");
-}
-
-void putDebugChar(int c)
-{
-	serial_putc (c);
-}
-
-void putDebugStr(const char *str)
-{
-	serial_puts (str);
-}
-
-int getDebugChar(void)
-{
-	return serial_getc ();
-}
-
-void kgdb_interruptible(int yes)
-{
-	return;
-}
-#endif	/* (CONFIG_KGDB_SER_INDEX & 2) */
-#endif
diff --git a/arch/i386/lib/board.c b/arch/i386/lib/board.c
index 947a8ec..7115a2f 100644
--- a/arch/i386/lib/board.c
+++ b/arch/i386/lib/board.c
@@ -37,6 +37,7 @@
 #include <malloc.h>
 #include <net.h>
 #include <ide.h>
+#include <serial.h>
 #include <asm/u-boot-i386.h>
 #include <elf.h>
 
@@ -149,7 +150,6 @@ static void display_flash_config (ulong size)
 typedef int (init_fnc_t) (void);
 
 init_fnc_t *init_sequence[] = {
-	serial_init,
 	cpu_init_r,		/* basic cpu dependent setup */
 	board_early_init_r,	/* basic board dependent setup */
 	dram_init,		/* configure available RAM banks */
@@ -277,6 +277,9 @@ void board_init_r(gd_t *id, ulong dest_addr)
 	}
 	show_boot_progress(0x23);
 
+#ifdef CONFIG_SERIAL_MULTI
+	serial_initialize();
+#endif
 	/* configure available FLASH banks */
 	size = flash_init();
 	display_flash_config(size);
diff --git a/board/eNET/eNET.c b/board/eNET/eNET.c
index f794beb..52ea140 100644
--- a/board/eNET/eNET.c
+++ b/board/eNET/eNET.c
@@ -111,8 +111,9 @@ int board_early_init_f(void)
 	writew(0x0615, &sc520_mmcr->romcs1ctl);
 	writew(0x0615, &sc520_mmcr->romcs2ctl);
 
-	writeb(0x02, &sc520_mmcr->adddecctl);
+	writeb(0x00, &sc520_mmcr->adddecctl);
 	writeb(0x07, &sc520_mmcr->uart1ctl);
+	writeb(0x07, &sc520_mmcr->uart2ctl);
 	writeb(0x06, &sc520_mmcr->sysarbctl);
 	writew(0x0003, &sc520_mmcr->sysarbmenb);
 
diff --git a/common/serial.c b/common/serial.c
index 0682faa..fceabfa 100644
--- a/common/serial.c
+++ b/common/serial.c
@@ -41,7 +41,8 @@ struct serial_device *__default_serial_console (void)
 #elif defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_440) \
    || defined(CONFIG_405EP) || defined(CONFIG_405EZ) || defined(CONFIG_405EX) \
    || defined(CONFIG_MPC5xxx) || defined(CONFIG_MPC83xx) \
-   || defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
+   || defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) \
+   || defined(CONFIG_SYS_SC520)
 #if defined(CONFIG_CONS_INDEX) && defined(CONFIG_SYS_NS16550_SERIAL)
 #if (CONFIG_CONS_INDEX==1)
 	return &eserial1_device;
diff --git a/include/configs/eNET.h b/include/configs/eNET.h
index 6a68bf4..05d7db8 100644
--- a/include/configs/eNET.h
+++ b/include/configs/eNET.h
@@ -21,6 +21,7 @@
  * MA 02111-1307 USA
  */
 
+#include <asm/ibmpc.h>
 /*
  * board/config.h - configuration options, board specific
  */
@@ -55,6 +56,26 @@
 #undef CONFIG_HW_WATCHDOG
 
  /*-----------------------------------------------------------------------
+  * Serial Configuration
+  */
+#define CONFIG_SERIAL_MULTI
+#undef CONFIG_SERIAL_SOFTWARE_FIFO
+#define CONFIG_CONS_INDEX		1
+#define CONFIG_SYS_NS16550
+#define CONFIG_SYS_NS16550_SERIAL
+#define CONFIG_SYS_NS16550_REG_SIZE	1
+#define CONFIG_SYS_NS16550_CLK		1843200
+#define CONFIG_BAUDRATE			9600
+#define CONFIG_SYS_BAUDRATE_TABLE	\
+	{300, 600, 1200, 2400, 4800, 9600, 19200, 38400,115200}
+
+#define CONFIG_SYS_NS16550_COM1		UART0_BASE
+#define CONFIG_SYS_NS16550_COM2		UART1_BASE
+#define CONFIG_SYS_NS16550_COM3		(0x1000 + UART0_BASE)
+#define CONFIG_SYS_NS16550_COM4		(0x1000 + UART1_BASE)
+#define CONFIG_SYS_NS16550_PORT_MAPPED
+
+ /*-----------------------------------------------------------------------
   * Video Configuration
   */
 #undef CONFIG_VIDEO			/* No Video Hardware */
@@ -65,8 +86,6 @@
  */
 #define CONFIG_SYS_MALLOC_LEN	(CONFIG_ENV_SIZE + 128*1024)
 
-#define CONFIG_BAUDRATE		9600
-
 /*-----------------------------------------------------------------------
  * Command line configuration.
  */
@@ -123,9 +142,6 @@
 
 #define	CONFIG_SYS_HZ			1024		/* incrementer freq: 1kHz */
 
-						/* valid baudrates */
-#define CONFIG_SYS_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200 }
-
 /*-----------------------------------------------------------------------
  * SDRAM Configuration
  */
diff --git a/include/serial.h b/include/serial.h
index 111edbe..6513d8e 100644
--- a/include/serial.h
+++ b/include/serial.h
@@ -26,7 +26,8 @@ extern struct serial_device * default_serial_console (void);
 #if defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_440) || \
     defined(CONFIG_405EP) || defined(CONFIG_405EZ) || defined(CONFIG_405EX) || \
     defined(CONFIG_MPC5xxx) || defined(CONFIG_MPC83xx) || \
-    defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
+    defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) || \
+    defined(CONFIG_SYS_SC520)
 extern struct serial_device serial0_device;
 extern struct serial_device serial1_device;
 #if defined(CONFIG_SYS_NS16550_SERIAL)