From: Jean-Christophe PLAGNIOL-VILLARD Date: Sun, 29 Mar 2009 21:01:42 +0000 (+0200) Subject: lpc2292: move serial driver to drivers/serial X-Git-Tag: v2009.06-rc1~112^2~11 X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=6790c55704531eb98f76b51d50e0f73d19fa2988;p=oweals%2Fu-boot.git lpc2292: move serial driver to drivers/serial add CONFIG_LPC2292_SERIAL to activate the driver Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD --- diff --git a/cpu/arm720t/serial.c b/cpu/arm720t/serial.c index 54a9b3137b..b54d1cff60 100644 --- a/cpu/arm720t/serial.c +++ b/cpu/arm720t/serial.c @@ -122,81 +122,4 @@ serial_puts (const char *s) serial_putc (*s++); } } - -#elif defined(CONFIG_LPC2292) - -DECLARE_GLOBAL_DATA_PTR; - -#include - -void serial_setbrg (void) -{ - unsigned short divisor = 0; - - switch (gd->baudrate) { - case 1200: divisor = 3072; break; - case 9600: divisor = 384; break; - case 19200: divisor = 192; break; - case 38400: divisor = 96; break; - case 57600: divisor = 64; break; - case 115200: divisor = 32; break; - default: hang (); break; - } - - /* init serial UART0 */ - PUT8(U0LCR, 0); - PUT8(U0IER, 0); - PUT8(U0LCR, 0x80); /* DLAB=1 */ - PUT8(U0DLL, (unsigned char)(divisor & 0x00FF)); - PUT8(U0DLM, (unsigned char)(divisor >> 8)); - PUT8(U0LCR, 0x03); /* 8N1, DLAB=0 */ - PUT8(U0FCR, 1); /* Enable RX and TX FIFOs */ -} - -int serial_init (void) -{ - unsigned long pinsel0; - - serial_setbrg (); - - pinsel0 = GET32(PINSEL0); - pinsel0 &= ~(0x00000003); - pinsel0 |= 5; - PUT32(PINSEL0, pinsel0); - - return (0); -} - -void serial_putc (const char c) -{ - if (c == '\n') - { - while((GET8(U0LSR) & (1<<5)) == 0); /* Wait for empty U0THR */ - PUT8(U0THR, '\r'); - } - - while((GET8(U0LSR) & (1<<5)) == 0); /* Wait for empty U0THR */ - PUT8(U0THR, c); -} - -int serial_getc (void) -{ - while((GET8(U0LSR) & 1) == 0); - return GET8(U0RBR); -} - -void -serial_puts (const char *s) -{ - while (*s) { - serial_putc (*s++); - } -} - -/* Test if there is a byte to read */ -int serial_tstc (void) -{ - return (GET8(U0LSR) & 1); -} - #endif diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile index 95255df5fe..eaf4f8e5df 100644 --- a/drivers/serial/Makefile +++ b/drivers/serial/Makefile @@ -35,6 +35,7 @@ COBJS-$(CONFIG_S3C64XX) += s3c64xx.o COBJS-$(CONFIG_SYS_NS16550_SERIAL) += serial.o COBJS-$(CONFIG_IXP_SERIAL) += serial_ixp.o COBJS-$(CONFIG_KS8695_SERIAL) += serial_ks8695.o +COBJS-$(CONFIG_LPC2292_SERIAL) += serial_lpc2292.o COBJS-$(CONFIG_MAX3100_SERIAL) += serial_max3100.o COBJS-$(CONFIG_MX31_UART) += serial_mx31.o COBJS-$(CONFIG_NETARM_SERIAL) += serial_netarm.o diff --git a/drivers/serial/serial_lpc2292.c b/drivers/serial/serial_lpc2292.c new file mode 100644 index 0000000000..87b7d5f411 --- /dev/null +++ b/drivers/serial/serial_lpc2292.c @@ -0,0 +1,105 @@ +/* + * (C) Copyright 2002-2004 + * Wolfgang Denk, DENX Software Engineering, + * + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH + * Marius Groeger + * + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH + * Alex Zuepke + * + * Copyright (C) 1999 2000 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl) + * + * 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 + * + */ + +#include +#include + +DECLARE_GLOBAL_DATA_PTR; + +void serial_setbrg (void) +{ + unsigned short divisor = 0; + + switch (gd->baudrate) { + case 1200: divisor = 3072; break; + case 9600: divisor = 384; break; + case 19200: divisor = 192; break; + case 38400: divisor = 96; break; + case 57600: divisor = 64; break; + case 115200: divisor = 32; break; + default: hang (); break; + } + + /* init serial UART0 */ + PUT8(U0LCR, 0); + PUT8(U0IER, 0); + PUT8(U0LCR, 0x80); /* DLAB=1 */ + PUT8(U0DLL, (unsigned char)(divisor & 0x00FF)); + PUT8(U0DLM, (unsigned char)(divisor >> 8)); + PUT8(U0LCR, 0x03); /* 8N1, DLAB=0 */ + PUT8(U0FCR, 1); /* Enable RX and TX FIFOs */ +} + +int serial_init (void) +{ + unsigned long pinsel0; + + serial_setbrg (); + + pinsel0 = GET32(PINSEL0); + pinsel0 &= ~(0x00000003); + pinsel0 |= 5; + PUT32(PINSEL0, pinsel0); + + return (0); +} + +void serial_putc (const char c) +{ + if (c == '\n') + { + while((GET8(U0LSR) & (1<<5)) == 0); /* Wait for empty U0THR */ + PUT8(U0THR, '\r'); + } + + while((GET8(U0LSR) & (1<<5)) == 0); /* Wait for empty U0THR */ + PUT8(U0THR, c); +} + +int serial_getc (void) +{ + while((GET8(U0LSR) & 1) == 0); + return GET8(U0RBR); +} + +void +serial_puts (const char *s) +{ + while (*s) { + serial_putc (*s++); + } +} + +/* Test if there is a byte to read */ +int serial_tstc (void) +{ + return (GET8(U0LSR) & 1); +} + diff --git a/include/configs/SMN42.h b/include/configs/SMN42.h index d6f41f926d..05f6d9fc1a 100644 --- a/include/configs/SMN42.h +++ b/include/configs/SMN42.h @@ -59,6 +59,7 @@ /* * select serial console configuration */ +#define CONFIG_LPC2292_SERIAL #define CONFIG_SERIAL1 1 /* we use Serial line 1 */ /* allow to overwrite serial and ethaddr */ diff --git a/include/configs/lpc2292sodimm.h b/include/configs/lpc2292sodimm.h index fa2917eb5d..1515038793 100644 --- a/include/configs/lpc2292sodimm.h +++ b/include/configs/lpc2292sodimm.h @@ -59,6 +59,7 @@ /* * select serial console configuration */ +#define CONFIG_LPC2292_SERIAL #define CONFIG_SERIAL1 1 /* we use Serial line 1 */ /* allow to overwrite serial and ethaddr */