Signed-off-by: Graeme Russ graeme.russ@gmail.com --- arch/i386/cpu/Makefile | 2 +- arch/i386/cpu/serial.c | 506 ------------------------------------------------ arch/i386/lib/board.c | 5 +- board/eNET/eNET.c | 3 +- common/serial.c | 3 +- include/configs/eNET.h | 26 ++- include/serial.h | 3 +- 7 files changed, 32 insertions(+), 516 deletions(-) delete mode 100644 arch/i386/cpu/serial.c
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 5f9ffd7..d4a632b 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 f2638ec..aa87a93 100644 --- a/include/serial.h +++ b/include/serial.h @@ -25,7 +25,8 @@ 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)