nios2: Move serial drivers to individual files in drivers/serial
The standard Altera UART & JTAG UART as well as the OpenCores YANU driver are now in individual files in drivers/serial rather than a single file uner cpu/nios2. Signed-off-by: Scott McNutt <smcnutt@psyent.com>
This commit is contained in:
Scott McNutt
parent
ffa37fc98d
commit
c9d4f46b5d
@ -27,7 +27,7 @@ LIB = $(obj)lib$(CPU).a
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START = start.o
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SOBJS = exceptions.o
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COBJS = cpu.o interrupts.o serial.o sysid.o traps.o epcs.o
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COBJS = cpu.o interrupts.o sysid.o traps.o epcs.o
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SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c)
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OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS))
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@ -25,11 +25,14 @@ include $(TOPDIR)/config.mk
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LIB := $(obj)libserial.a
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COBJS-$(CONFIG_ALTERA_UART) += altera_uart.o
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COBJS-$(CONFIG_ALTERA_JTAG_UART) += altera_jtag_uart.o
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COBJS-$(CONFIG_ARM_DCC) += arm_dcc.o
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COBJS-$(CONFIG_AT91RM9200_USART) += at91rm9200_usart.o
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COBJS-$(CONFIG_ATMEL_USART) += atmel_usart.o
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COBJS-$(CONFIG_MCFUART) += mcfuart.o
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COBJS-$(CONFIG_NS9750_UART) += ns9750_serial.o
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COBJS-$(CONFIG_OPENCORES_YANU) += opencores_yanu.o
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COBJS-$(CONFIG_SYS_NS16550) += ns16550.o
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COBJS-$(CONFIG_DRIVER_S3C4510_UART) += s3c4510b_uart.o
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COBJS-$(CONFIG_S3C64XX) += s3c64xx.o
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70
drivers/serial/altera_jtag_uart.c
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70
drivers/serial/altera_jtag_uart.c
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@ -0,0 +1,70 @@
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/*
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* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
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* Scott McNutt <smcnutt@psyent.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <watchdog.h>
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#include <asm/io.h>
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#include <nios2-io.h>
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DECLARE_GLOBAL_DATA_PTR;
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/*------------------------------------------------------------------
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* JTAG acts as the serial port
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*-----------------------------------------------------------------*/
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static nios_jtag_t *jtag = (nios_jtag_t *)CONFIG_SYS_NIOS_CONSOLE;
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void serial_setbrg( void ){ return; }
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int serial_init( void ) { return(0);}
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void serial_putc (char c)
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{
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while (NIOS_JTAG_WSPACE ( readl (&jtag->control)) == 0)
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WATCHDOG_RESET ();
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writel (&jtag->data, (unsigned char)c);
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}
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void serial_puts (const char *s)
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{
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while (*s != 0)
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serial_putc (*s++);
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}
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int serial_tstc (void)
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{
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return ( readl (&jtag->control) & NIOS_JTAG_RRDY);
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}
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int serial_getc (void)
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{
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int c;
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unsigned val;
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while (1) {
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WATCHDOG_RESET ();
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val = readl (&jtag->data);
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if (val & NIOS_JTAG_RVALID)
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break;
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}
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c = val & 0x0ff;
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return (c);
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}
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94
drivers/serial/altera_uart.c
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94
drivers/serial/altera_uart.c
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@ -0,0 +1,94 @@
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/*
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* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
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* Scott McNutt <smcnutt@psyent.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <watchdog.h>
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#include <asm/io.h>
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#include <nios2-io.h>
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DECLARE_GLOBAL_DATA_PTR;
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/*------------------------------------------------------------------
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* UART the serial port
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*-----------------------------------------------------------------*/
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static nios_uart_t *uart = (nios_uart_t *) CONFIG_SYS_NIOS_CONSOLE;
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#if defined(CONFIG_SYS_NIOS_FIXEDBAUD)
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/* Everything's already setup for fixed-baud PTF
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* assignment
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*/
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void serial_setbrg (void){ return; }
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int serial_init (void) { return (0);}
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#else
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void serial_setbrg (void)
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{
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unsigned div;
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div = (CONFIG_SYS_CLK_FREQ/gd->baudrate)-1;
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writel (&uart->divisor,div);
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return;
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}
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int serial_init (void)
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{
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serial_setbrg ();
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return (0);
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}
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#endif /* CONFIG_SYS_NIOS_FIXEDBAUD */
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/*-----------------------------------------------------------------------
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* UART CONSOLE
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*---------------------------------------------------------------------*/
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void serial_putc (char c)
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{
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if (c == '\n')
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serial_putc ('\r');
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while ((readl (&uart->status) & NIOS_UART_TRDY) == 0)
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WATCHDOG_RESET ();
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writel (&uart->txdata,(unsigned char)c);
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}
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void serial_puts (const char *s)
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{
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while (*s != 0) {
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serial_putc (*s++);
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}
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}
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int serial_tstc (void)
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{
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return (readl (&uart->status) & NIOS_UART_RRDY);
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}
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int serial_getc (void)
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{
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while (serial_tstc () == 0)
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WATCHDOG_RESET ();
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return (readl (&uart->rxdata) & 0x00ff );
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}
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@ -1,8 +1,4 @@
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/*
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* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
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* Scott McNutt <smcnutt@psyent.com>
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*
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* YANU Support:
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* Copyright 2010, Renato Andreola <renato.andreola@imagos.it>
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*
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* See file CREDITS for list of people who contributed to this
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@ -24,61 +20,13 @@
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <watchdog.h>
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#include <asm/io.h>
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#include <nios2-io.h>
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#include <nios2-yanu.h>
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DECLARE_GLOBAL_DATA_PTR;
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/*------------------------------------------------------------------
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* JTAG acts as the serial port
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*-----------------------------------------------------------------*/
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#if defined(CONFIG_CONSOLE_JTAG)
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static nios_jtag_t *jtag = (nios_jtag_t *)CONFIG_SYS_NIOS_CONSOLE;
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void serial_setbrg( void ){ return; }
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int serial_init( void ) { return(0);}
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void serial_putc (char c)
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{
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unsigned val;
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while (NIOS_JTAG_WSPACE ( readl (&jtag->control)) == 0)
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WATCHDOG_RESET ();
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writel (&jtag->data, (unsigned char)c);
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}
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void serial_puts (const char *s)
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{
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while (*s != 0)
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serial_putc (*s++);
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}
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int serial_tstc (void)
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{
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return ( readl (&jtag->control) & NIOS_JTAG_RRDY);
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}
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int serial_getc (void)
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{
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int c;
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unsigned val;
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while (1) {
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WATCHDOG_RESET ();
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val = readl (&jtag->data);
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if (val & NIOS_JTAG_RVALID)
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break;
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}
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c = val & 0x0ff;
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return (c);
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}
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#elif defined(CONFIG_CONSOLE_YANU)
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/*-----------------------------------------------------------------*/
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/* YANU Imagos serial port */
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/*-----------------------------------------------------------------*/
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@ -238,72 +186,3 @@ int serial_getc (void)
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return(readl(&uart->data) & YANU_DATA_CHAR_MASK);
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}
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#else /*CONFIG_CONSOLE_YANU*/
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/*------------------------------------------------------------------
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* UART the serial port
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*-----------------------------------------------------------------*/
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static nios_uart_t *uart = (nios_uart_t *) CONFIG_SYS_NIOS_CONSOLE;
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#if defined(CONFIG_SYS_NIOS_FIXEDBAUD)
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/* Everything's already setup for fixed-baud PTF
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* assignment
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*/
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void serial_setbrg (void){ return; }
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int serial_init (void) { return (0);}
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#else
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void serial_setbrg (void)
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{
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unsigned div;
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div = (CONFIG_SYS_CLK_FREQ/gd->baudrate)-1;
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writel (&uart->divisor,div);
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return;
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}
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int serial_init (void)
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{
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serial_setbrg ();
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return (0);
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}
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#endif /* CONFIG_SYS_NIOS_FIXEDBAUD */
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/*-----------------------------------------------------------------------
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* UART CONSOLE
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*---------------------------------------------------------------------*/
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void serial_putc (char c)
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{
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if (c == '\n')
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serial_putc ('\r');
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while ((readl (&uart->status) & NIOS_UART_TRDY) == 0)
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WATCHDOG_RESET ();
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writel (&uart->txdata,(unsigned char)c);
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}
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void serial_puts (const char *s)
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{
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while (*s != 0) {
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serial_putc (*s++);
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}
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}
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int serial_tstc (void)
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{
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return (readl (&uart->status) & NIOS_UART_RRDY);
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}
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int serial_getc (void)
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{
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while (serial_tstc () == 0)
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WATCHDOG_RESET ();
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return (readl (&uart->rxdata) & 0x00ff );
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}
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#endif /* CONFIG_JTAG_CONSOLE */
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@ -94,7 +94,8 @@
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/*------------------------------------------------------------------------
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* CONSOLE
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*----------------------------------------------------------------------*/
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#if defined(CONFIG_CONSOLE_JTAG)
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#define CONFIG_ALTERA_UART 1 /* Use altera uart */
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#if defined(CONFIG_ALTERA_JTAG_UART)
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#define CONFIG_SYS_NIOS_CONSOLE 0x021208b0 /* JTAG UART base addr */
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#else
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#define CONFIG_SYS_NIOS_CONSOLE 0x02120840 /* UART base addr */
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@ -92,7 +92,8 @@
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/*------------------------------------------------------------------------
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* CONSOLE
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*----------------------------------------------------------------------*/
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#if defined(CONFIG_CONSOLE_JTAG)
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#define CONFIG_ALTERA_UART 1 /* Use altera uart */
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#if defined(CONFIG_ALTERA_JTAG_UART)
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#define CONFIG_SYS_NIOS_CONSOLE 0x021208b0 /* JTAG UART base addr */
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#else
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#define CONFIG_SYS_NIOS_CONSOLE 0x02120840 /* UART base addr */
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@ -92,7 +92,8 @@
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/*------------------------------------------------------------------------
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* CONSOLE
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*----------------------------------------------------------------------*/
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#if defined(CONFIG_CONSOLE_JTAG)
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#define CONFIG_ALTERA_UART 1 /* Use altera uart */
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#if defined(CONFIG_ALTERA_JTAG_UART)
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#define CONFIG_SYS_NIOS_CONSOLE 0x021208b0 /* JTAG UART base addr */
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#else
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#define CONFIG_SYS_NIOS_CONSOLE 0x02120840 /* UART base addr */
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@ -92,7 +92,8 @@
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/*------------------------------------------------------------------------
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* CONSOLE
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*----------------------------------------------------------------------*/
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#if defined(CONFIG_CONSOLE_JTAG)
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#define CONFIG_ALTERA_UART 1 /* Use altera uart */
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#if defined(CONFIG_ALTERA_JTAG_UART)
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#define CONFIG_SYS_NIOS_CONSOLE 0x00920820 /* JTAG UART base addr */
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#else
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#define CONFIG_SYS_NIOS_CONSOLE 0x009208a0 /* UART base addr */
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@ -94,7 +94,8 @@
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/*------------------------------------------------------------------------
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* CONSOLE
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*----------------------------------------------------------------------*/
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#if defined(CONFIG_CONSOLE_JTAG)
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#define CONFIG_ALTERA_UART 1 /* Use altera uart */
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#if defined(CONFIG_ALTERA_JTAG_UART)
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#define CONFIG_SYS_NIOS_CONSOLE 0x021208b0 /* JTAG UART base addr */
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#else
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#define CONFIG_SYS_NIOS_CONSOLE 0x02120840 /* UART base addr */
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