diff options
Diffstat (limited to 'cpu/arm720t')
| -rw-r--r-- | cpu/arm720t/Makefile | 2 | ||||
| -rw-r--r-- | cpu/arm720t/cpu.c | 62 | ||||
| -rw-r--r-- | cpu/arm720t/s3c4510b/Makefile | 46 | ||||
| -rw-r--r-- | cpu/arm720t/s3c4510b/cache.c | 86 | ||||
| -rw-r--r-- | cpu/arm720t/serial.c | 202 | ||||
| -rw-r--r-- | cpu/arm720t/serial_netarm.c | 200 |
6 files changed, 133 insertions, 465 deletions
diff --git a/cpu/arm720t/Makefile b/cpu/arm720t/Makefile index c97f329..d5ac7d3 100644 --- a/cpu/arm720t/Makefile +++ b/cpu/arm720t/Makefile @@ -26,7 +26,7 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(CPU).a START = start.o -COBJS = serial.o serial_netarm.o interrupts.o cpu.o +COBJS = interrupts.o cpu.o SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(COBJS) $(SOBJS)) diff --git a/cpu/arm720t/cpu.c b/cpu/arm720t/cpu.c index 5ac8f59..8166982 100644 --- a/cpu/arm720t/cpu.c +++ b/cpu/arm720t/cpu.c @@ -188,71 +188,9 @@ int dcache_status (void) { return (read_p15_c1 () & C1_IDC) != 0; } - -#elif defined(CONFIG_S3C4510B) - -void icache_enable (void) -{ - s32 i; - - /* disable all cache bits */ - CLR_REG( REG_SYSCFG, 0x3F); - - /* 8KB cache, write enable */ - SET_REG( REG_SYSCFG, CACHE_WRITE_BUFF | CACHE_MODE_01); - - /* clear TAG RAM bits */ - for ( i = 0; i < 256; i++) - PUT_REG( CACHE_TAG_RAM + 4*i, 0x00000000); - - /* clear SET0 RAM */ - for(i=0; i < 1024; i++) - PUT_REG( CACHE_SET0_RAM + 4*i, 0x00000000); - - /* clear SET1 RAM */ - for(i=0; i < 1024; i++) - PUT_REG( CACHE_SET1_RAM + 4*i, 0x00000000); - - /* enable cache */ - SET_REG( REG_SYSCFG, CACHE_ENABLE); - -} - -void icache_disable (void) -{ - /* disable all cache bits */ - CLR_REG( REG_SYSCFG, 0x3F); -} - -int icache_status (void) -{ - return GET_REG( REG_SYSCFG) & CACHE_ENABLE; -} - -void dcache_enable (void) -{ - /* we don't have seperate instruction/data caches */ - icache_enable(); -} - -void dcache_disable (void) -{ - /* we don't have seperate instruction/data caches */ - icache_disable(); -} - -int dcache_status (void) -{ - /* we don't have seperate instruction/data caches */ - return icache_status(); -} - #elif defined(CONFIG_INTEGRATOR) && defined(CONFIG_ARCH_INTEGRATOR) /* No specific cache setup for IntegratorAP/CM720T as yet */ void icache_enable (void) { } -#elif defined(CONFIG_LPC2292) /* just to satisfy the compiler */ -#else -#error No icache/dcache enable/disable functions defined for this CPU type #endif diff --git a/cpu/arm720t/s3c4510b/Makefile b/cpu/arm720t/s3c4510b/Makefile new file mode 100644 index 0000000..c9520b6 --- /dev/null +++ b/cpu/arm720t/s3c4510b/Makefile @@ -0,0 +1,46 @@ +# +# (C) Copyright 2000-2008 +# 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 +# + +include $(TOPDIR)/config.mk + +LIB = $(obj)lib$(SOC).a + +COBJS-y += cache.o + +SRCS := $(SOBJS:.o=.S) $(COBJS-y:.o=.c) +OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS-y)) + +all: $(obj).depend $(LIB) + +$(LIB): $(OBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### + diff --git a/cpu/arm720t/s3c4510b/cache.c b/cpu/arm720t/s3c4510b/cache.c new file mode 100644 index 0000000..104d287 --- /dev/null +++ b/cpu/arm720t/s3c4510b/cache.c @@ -0,0 +1,86 @@ +/* + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger <mgroeger@sysgo.de> + * + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Alex Zuepke <azu@sysgo.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 + */ + +#include <common.h> +#include <asm/hardware.h> + +void icache_enable (void) +{ + s32 i; + + /* disable all cache bits */ + CLR_REG( REG_SYSCFG, 0x3F); + + /* 8KB cache, write enable */ + SET_REG( REG_SYSCFG, CACHE_WRITE_BUFF | CACHE_MODE_01); + + /* clear TAG RAM bits */ + for ( i = 0; i < 256; i++) + PUT_REG( CACHE_TAG_RAM + 4*i, 0x00000000); + + /* clear SET0 RAM */ + for(i=0; i < 1024; i++) + PUT_REG( CACHE_SET0_RAM + 4*i, 0x00000000); + + /* clear SET1 RAM */ + for(i=0; i < 1024; i++) + PUT_REG( CACHE_SET1_RAM + 4*i, 0x00000000); + + /* enable cache */ + SET_REG( REG_SYSCFG, CACHE_ENABLE); + +} + +void icache_disable (void) +{ + /* disable all cache bits */ + CLR_REG( REG_SYSCFG, 0x3F); +} + +int icache_status (void) +{ + return GET_REG( REG_SYSCFG) & CACHE_ENABLE; +} + +void dcache_enable (void) +{ + /* we don't have seperate instruction/data caches */ + icache_enable(); +} + +void dcache_disable (void) +{ + /* we don't have seperate instruction/data caches */ + icache_disable(); +} + +int dcache_status (void) +{ + /* we don't have seperate instruction/data caches */ + return icache_status(); +} diff --git a/cpu/arm720t/serial.c b/cpu/arm720t/serial.c deleted file mode 100644 index 54a9b31..0000000 --- a/cpu/arm720t/serial.c +++ /dev/null @@ -1,202 +0,0 @@ -/* - * (C) Copyright 2002-2004 - * Wolfgang Denk, DENX Software Engineering, <wd@denx.de> - * - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Marius Groeger <mgroeger@sysgo.de> - * - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Alex Zuepke <azu@sysgo.de> - * - * 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 <common.h> - -#if defined(CONFIG_IMPA7) || defined(CONFIG_EP7312) || defined(CONFIG_ARMADILLO) - -#include <clps7111.h> - -DECLARE_GLOBAL_DATA_PTR; - -void serial_setbrg (void) -{ - unsigned int reg = 0; - - switch (gd->baudrate) { - case 1200: reg = 191; break; - case 9600: reg = 23; break; - case 19200: reg = 11; break; - case 38400: reg = 5; break; - case 57600: reg = 3; break; - case 115200: reg = 1; break; - default: hang (); break; - } - - /* init serial serial 1,2 */ - IO_SYSCON1 = SYSCON1_UART1EN; - IO_SYSCON2 = SYSCON2_UART2EN; - - reg |= UBRLCR_WRDLEN8; - - IO_UBRLCR1 = reg; - IO_UBRLCR2 = reg; -} - - -/* - * Initialise the serial port with the given baudrate. The settings - * are always 8 data bits, no parity, 1 stop bit, no start bits. - * - */ -int serial_init (void) -{ - serial_setbrg (); - - return (0); -} - - -/* - * Output a single byte to the serial port. - */ -void serial_putc (const char c) -{ - int tmo; - - /* If \n, also do \r */ - if (c == '\n') - serial_putc ('\r'); - - tmo = get_timer (0) + 1 * CONFIG_SYS_HZ; - while (IO_SYSFLG1 & SYSFLG1_UTXFF) - if (get_timer (0) > tmo) - break; - - IO_UARTDR1 = c; -} - -/* - * Read a single byte from the serial port. Returns 1 on success, 0 - * otherwise. When the function is succesfull, the character read is - * written into its argument c. - */ -int serial_tstc (void) -{ - return !(IO_SYSFLG1 & SYSFLG1_URXFE); -} - -/* - * Read a single byte from the serial port. Returns 1 on success, 0 - * otherwise. When the function is succesfull, the character read is - * written into its argument c. - */ -int serial_getc (void) -{ - while (IO_SYSFLG1 & SYSFLG1_URXFE); - - return IO_UARTDR1 & 0xff; -} - -void -serial_puts (const char *s) -{ - while (*s) { - serial_putc (*s++); - } -} - -#elif defined(CONFIG_LPC2292) - -DECLARE_GLOBAL_DATA_PTR; - -#include <asm/arch/hardware.h> - -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/cpu/arm720t/serial_netarm.c b/cpu/arm720t/serial_netarm.c deleted file mode 100644 index 1a1b2db..0000000 --- a/cpu/arm720t/serial_netarm.c +++ /dev/null @@ -1,200 +0,0 @@ -/* - * Serial Port stuff - taken from Linux - * - * (C) Copyright 2002 - * MAZeT GmbH <www.mazet.de> - * Stephan Linz <linz@mazet.de>, <linz@li-pro.net> - * - * (c) 2004 - * IMMS gGmbH <www.imms.de> - * Thomas Elste <info@elste.org> - * - * 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 - * - */ - -#include <common.h> - -#ifdef CONFIG_NETARM - -#include <asm/hardware.h> - -DECLARE_GLOBAL_DATA_PTR; - -#define PORTA (*(volatile unsigned int *)(NETARM_GEN_MODULE_BASE + NETARM_GEN_PORTA)) -#if !defined(CONFIG_NETARM_NS7520) -#define PORTB (*(volatile unsigned int *)(NETARM_GEN_MODULE_BASE + NETARM_GEN_PORTB)) -#else -#define PORTC (*(volatile unsigned int *)(NETARM_GEN_MODULE_BASE + NETARM_GEN_PORTC)) -#endif - -/* wait until transmitter is ready for another character */ -#define TXWAITRDY(registers) \ -{ \ - ulong tmo = get_timer(0) + 1 * CONFIG_SYS_HZ; \ - while (((registers)->status_a & NETARM_SER_STATA_TX_RDY) == 0 ) { \ - if (get_timer(0) > tmo) \ - break; \ - } \ -} - - -#ifndef CONFIG_UART1_CONSOLE -volatile netarm_serial_channel_t *serial_reg_ch1 = get_serial_channel(0); -volatile netarm_serial_channel_t *serial_reg_ch2 = get_serial_channel(1); -#else -volatile netarm_serial_channel_t *serial_reg_ch1 = get_serial_channel(1); -volatile netarm_serial_channel_t *serial_reg_ch2 = get_serial_channel(0); -#endif - -extern void _netarm_led_FAIL1(void); - -/* - * Setup both serial i/f with given baudrate - */ -void serial_setbrg (void) -{ - /* set 0 ... make sure pins are configured for serial */ -#if !defined(CONFIG_NETARM_NS7520) - PORTA = PORTB = - NETARM_GEN_PORT_MODE (0xef) | NETARM_GEN_PORT_DIR (0xe0); -#else - PORTA = NETARM_GEN_PORT_MODE (0xef) | NETARM_GEN_PORT_DIR (0xe0); - PORTC = NETARM_GEN_PORT_CSF (0xef) | NETARM_GEN_PORT_MODE (0xef) | NETARM_GEN_PORT_DIR (0xe0); -#endif - - /* first turn em off */ - serial_reg_ch1->ctrl_a = serial_reg_ch2->ctrl_a = 0; - - /* clear match register, we don't need it */ - serial_reg_ch1->rx_match = serial_reg_ch2->rx_match = 0; - - /* setup bit rate generator and rx buffer gap timer (1 byte only) */ - if ((gd->baudrate >= MIN_BAUD_RATE) - && (gd->baudrate <= MAX_BAUD_RATE)) { - serial_reg_ch1->bitrate = serial_reg_ch2->bitrate = - NETARM_SER_BR_X16 (gd->baudrate); - serial_reg_ch1->rx_buf_timer = serial_reg_ch2->rx_buf_timer = - 0; - serial_reg_ch1->rx_char_timer = serial_reg_ch2->rx_char_timer = - NETARM_SER_RXGAP (gd->baudrate); - } else { - hang (); - } - - /* setup port mode */ - serial_reg_ch1->ctrl_b = serial_reg_ch2->ctrl_b = - ( NETARM_SER_CTLB_RCGT_EN | - NETARM_SER_CTLB_UART_MODE); - serial_reg_ch1->ctrl_a = serial_reg_ch2->ctrl_a = - ( NETARM_SER_CTLA_ENABLE | - NETARM_SER_CTLA_P_NONE | - /* see errata */ - NETARM_SER_CTLA_2STOP | - NETARM_SER_CTLA_8BITS | - NETARM_SER_CTLA_DTR_EN | - NETARM_SER_CTLA_RTS_EN); -} - - -/* - * Initialise the serial port with the given baudrate. The settings - * are always 8 data bits, no parity, 1 stop bit, no start bits. - */ -int serial_init (void) -{ - serial_setbrg (); - return 0; -} - - -/* - * Output a single byte to the serial port. - */ -void serial_putc (const char c) -{ - volatile unsigned char *fifo; - - /* If \n, also do \r */ - if (c == '\n') - serial_putc ('\r'); - - fifo = (volatile unsigned char *) &(serial_reg_ch1->fifo); - TXWAITRDY (serial_reg_ch1); - *fifo = c; -} - -/* - * Test of a single byte from the serial port. Returns 1 on success, 0 - * otherwise. - */ -int serial_tstc(void) -{ - return serial_reg_ch1->status_a & NETARM_SER_STATA_RX_RDY; -} - -/* - * Read a single byte from the serial port. Returns 1 on success, 0 - * otherwise. - */ -int serial_getc (void) -{ - unsigned int ch_uint; - volatile unsigned int *fifo; - volatile unsigned char *fifo_char = NULL; - int buf_count = 0; - - while (!(serial_reg_ch1->status_a & NETARM_SER_STATA_RX_RDY)) - /* NOP */ ; - - fifo = (volatile unsigned int *) &(serial_reg_ch1->fifo); - fifo_char = (unsigned char *) &ch_uint; - ch_uint = *fifo; - - buf_count = NETARM_SER_STATA_RXFDB (serial_reg_ch1->status_a); - switch (buf_count) { - case NETARM_SER_STATA_RXFDB_4BYTES: - buf_count = 4; - break; - case NETARM_SER_STATA_RXFDB_3BYTES: - buf_count = 3; - break; - case NETARM_SER_STATA_RXFDB_2BYTES: - buf_count = 2; - break; - case NETARM_SER_STATA_RXFDB_1BYTES: - buf_count = 1; - break; - default: - /* panic, be never here */ - break; - } - - serial_reg_ch1->status_a |= NETARM_SER_STATA_RX_CLOSED; - - return ch_uint & 0xff; -} - -void serial_puts (const char *s) -{ - while (*s) { - serial_putc (*s++); - } -} - -#endif /* CONFIG_NETARM */ |