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authorSebastian Huber <sebastian.huber@embedded-brains.de>2018-03-26 12:20:45 +0200
committerSebastian Huber <sebastian.huber@embedded-brains.de>2018-03-26 15:12:49 +0200
commit2190bc61bf60379a0a3c94e08b851fab309628c3 (patch)
tree09743e998f2b44628be481e0cc8c400f5ddd8d59 /c/src/lib/libcpu
parentbsps/m68k: Move fpsp support to bsps (diff)
downloadrtems-2190bc61bf60379a0a3c94e08b851fab309628c3.tar.bz2
bsps/mcf5206elite: Move libcpu content to bsps
This patch is a part of the BSP source reorganization. Update #3285.
Diffstat (limited to 'c/src/lib/libcpu')
-rw-r--r--c/src/lib/libcpu/m68k/Makefile.am27
-rw-r--r--c/src/lib/libcpu/m68k/mcf5206/clock/ckinit.c113
-rw-r--r--c/src/lib/libcpu/m68k/mcf5206/console/mcfuart.c519
-rw-r--r--c/src/lib/libcpu/m68k/mcf5206/mbus/mcfmbus.c565
-rw-r--r--c/src/lib/libcpu/m68k/mcf5206/timer/timer.c158
-rw-r--r--c/src/lib/libcpu/m68k/mcf5206/timer/timerisr.S48
6 files changed, 0 insertions, 1430 deletions
diff --git a/c/src/lib/libcpu/m68k/Makefile.am b/c/src/lib/libcpu/m68k/Makefile.am
index 1b28e60d73..50cc126be0 100644
--- a/c/src/lib/libcpu/m68k/Makefile.am
+++ b/c/src/lib/libcpu/m68k/Makefile.am
@@ -4,33 +4,6 @@ include $(top_srcdir)/../../../automake/compile.am
noinst_PROGRAMS =
-if mcf5206
-# mcf5206/include
-## mcf5206/clock
-noinst_PROGRAMS += mcf5206/clock.rel
-mcf5206_clock_rel_SOURCES = mcf5206/clock/ckinit.c
-mcf5206_clock_rel_CPPFLAGS = $(AM_CPPFLAGS)
-mcf5206_clock_rel_LDFLAGS = $(RTEMS_RELLDFLAGS)
-
-## mcf5206/mcfuart
-noinst_PROGRAMS += mcf5206/mcfuart.rel
-mcf5206_mcfuart_rel_SOURCES = mcf5206/console/mcfuart.c
-mcf5206_mcfuart_rel_CPPFLAGS = $(AM_CPPFLAGS)
-mcf5206_mcfuart_rel_LDFLAGS = $(RTEMS_RELLDFLAGS)
-
-## mcf5206/mbus
-noinst_PROGRAMS += mcf5206/mbus.rel
-mcf5206_mbus_rel_SOURCES = mcf5206/mbus/mcfmbus.c
-mcf5206_mbus_rel_CPPFLAGS = $(AM_CPPFLAGS)
-mcf5206_mbus_rel_LDFLAGS = $(RTEMS_RELLDFLAGS)
-
-## mcf5206/timer
-noinst_PROGRAMS += mcf5206/timer.rel
-mcf5206_timer_rel_SOURCES = mcf5206/timer/timer.c mcf5206/timer/timerisr.S
-mcf5206_timer_rel_CPPFLAGS = $(AM_CPPFLAGS)
-mcf5206_timer_rel_LDFLAGS = $(RTEMS_RELLDFLAGS)
-endif
-
if mcf5272
## mcf5272/include
## clock
diff --git a/c/src/lib/libcpu/m68k/mcf5206/clock/ckinit.c b/c/src/lib/libcpu/m68k/mcf5206/clock/ckinit.c
deleted file mode 100644
index 80962a1d58..0000000000
--- a/c/src/lib/libcpu/m68k/mcf5206/clock/ckinit.c
+++ /dev/null
@@ -1,113 +0,0 @@
-/*
- * Clock Driver for MCF5206eLITE board
- *
- * This driver initailizes timer1 on the MCF5206E as the
- * main system clock
- */
-
-/*
- * Author: Victor V. Vengerov <vvv@oktet.ru>
- *
- * Based on work:
- * David Fiddes, D.J@fiddes.surfaid.org
- * http://www.calm.hw.ac.uk/davidf/coldfire/
- *
- * COPYRIGHT (c) 1989-1998.
- * On-Line Applications Research Corporation (OAR).
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rtems.org/license/LICENSE.
- */
-
-#include <stdlib.h>
-#include <bsp.h>
-#include <rtems/libio.h>
-#include <rtems/clockdrv.h>
-#include "mcf5206/mcf5206e.h"
-
-/*
- * Clock_driver_ticks is a monotonically increasing counter of the
- * number of clock ticks since the driver was initialized.
- */
-volatile uint32_t Clock_driver_ticks;
-
-rtems_isr (*rtems_clock_hook)(rtems_vector_number) = NULL;
-
-static rtems_isr
-Clock_isr (rtems_vector_number vector)
-{
- /* Clear pending interrupt... */
- *MCF5206E_TER(MBAR,1) = MCF5206E_TER_REF | MCF5206E_TER_CAP;
-
- /* Announce the clock tick */
- Clock_driver_ticks++;
- rtems_clock_tick();
- if (rtems_clock_hook != NULL)
- rtems_clock_hook(vector);
-}
-
-void
-Clock_exit(void)
-{
- /* disable all timer1 interrupts */
- *MCF5206E_IMR(MBAR) |= MCF5206E_INTR_BIT(MCF5206E_INTR_TIMER_1);
-
- /* reset timer1 */
- *MCF5206E_TMR(MBAR,1) = MCF5206E_TMR_ICLK_STOP;
-
- /* clear pending */
- *MCF5206E_TER(MBAR,1) = MCF5206E_TER_REF | MCF5206E_TER_CAP;
-}
-
-
-static void
-Install_clock(rtems_isr_entry clock_isr)
-{
- Clock_driver_ticks = 0;
-
- /* Configure timer1 interrupts */
- *MCF5206E_ICR(MBAR,MCF5206E_INTR_TIMER_1) =
- MCF5206E_ICR_AVEC |
- ((BSP_INTLVL_TIMER1 << MCF5206E_ICR_IL_S) & MCF5206E_ICR_IL) |
- ((BSP_INTPRIO_TIMER1 << MCF5206E_ICR_IP_S) & MCF5206E_ICR_IP);
-
- /* Register the interrupt handler */
- set_vector(clock_isr, BSP_INTVEC_TIMER1, 1);
-
- /* Reset timer 1 */
- *MCF5206E_TMR(MBAR, 1) = MCF5206E_TMR_RST;
- *MCF5206E_TMR(MBAR, 1) = MCF5206E_TMR_ICLK_STOP;
- *MCF5206E_TMR(MBAR, 1) = MCF5206E_TMR_RST;
- *MCF5206E_TCN(MBAR, 1) = 0; /* Reset counter */
- *MCF5206E_TER(MBAR, 1) = MCF5206E_TER_REF | MCF5206E_TER_CAP;
-
- /* Set Timer 1 prescaler so that it counts in microseconds */
- *MCF5206E_TMR(MBAR, 1) =
- (((BSP_SYSTEM_FREQUENCY/1000000 - 1) << MCF5206E_TMR_PS_S) &
- MCF5206E_TMR_PS) |
- MCF5206E_TMR_CE_NONE | MCF5206E_TMR_ORI | MCF5206E_TMR_FRR |
- MCF5206E_TMR_RST;
-
- /* Set the timer timeout value from the BSP config */
- *MCF5206E_TRR(MBAR, 1) = rtems_configuration_get_microseconds_per_tick() - 1;
-
- /* Feed system frequency to the timer */
- *MCF5206E_TMR(MBAR, 1) |= MCF5206E_TMR_ICLK_MSCLK;
-
- /* Enable timer 1 interrupts */
- *MCF5206E_IMR(MBAR) &= ~MCF5206E_INTR_BIT(MCF5206E_INTR_TIMER_1);
-
- /* Register the driver exit procedure so we can shutdown */
- atexit(Clock_exit);
-}
-
-rtems_device_driver
-Clock_initialize(rtems_device_major_number major,
- rtems_device_minor_number minor,
- void *pargp)
-{
- Install_clock (Clock_isr);
-
- return RTEMS_SUCCESSFUL;
-}
diff --git a/c/src/lib/libcpu/m68k/mcf5206/console/mcfuart.c b/c/src/lib/libcpu/m68k/mcf5206/console/mcfuart.c
deleted file mode 100644
index fccce8541d..0000000000
--- a/c/src/lib/libcpu/m68k/mcf5206/console/mcfuart.c
+++ /dev/null
@@ -1,519 +0,0 @@
-/*
- * Generic UART Serial driver for Motorola Coldfire processors
- */
-
-/*
- * Copyright (C) 2000 OKTET Ltd., St.-Petersburg, Russian Fed.
- * Author: Victor V. Vengerov <vvv@oktet.ru>
- *
- * COPYRIGHT (c) 1989-2000.
- * On-Line Applications Research Corporation (OAR).
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rtems.org/license/LICENSE.
- */
-
-#include <rtems.h>
-#include <termios.h>
-#include <rtems/libio.h>
-#include "mcf5206/mcfuart.h"
-
-/*
- * int_driven_uart -- mapping between interrupt vector number and
- * UART descriptor structures
- */
-static struct {
- mcfuart *uart;
- int vec;
-} int_driven_uart[2];
-
-/* Forward function declarations */
-static rtems_isr
-mcfuart_interrupt_handler(rtems_vector_number vec);
-
-/*
- * mcfuart_init --
- * This function verifies the input parameters and perform initialization
- * of the Motorola Coldfire on-chip UART descriptor structure.
- *
- * PARAMETERS:
- * uart - pointer to the UART channel descriptor structure
- * tty - pointer to termios structure
- * int_driven - interrupt-driven (1) or polled (0) I/O mode
- * chn - channel number (0/1)
- * rx_buf - pointer to receive buffer
- * rx_buf_len - receive buffer length
- *
- * RETURNS:
- * RTEMS_SUCCESSFUL if all parameters are valid, or error code
- */
-rtems_status_code
-mcfuart_init(
- mcfuart *uart,
- void *tty,
- uint8_t intvec,
- uint32_t chn
-)
-{
- if (uart == NULL)
- return RTEMS_INVALID_ADDRESS;
-
- if ((chn <= 0) || (chn > MCF5206E_UART_CHANNELS))
- return RTEMS_INVALID_NUMBER;
-
- uart->chn = chn;
- uart->intvec = intvec;
- uart->tty = tty;
-
- return RTEMS_SUCCESSFUL;
-}
-
-/* mcfuart_set_baudrate --
- * Program the UART timer to specified baudrate
- *
- * PARAMETERS:
- * uart - pointer to UART descriptor structure
- * baud - termios baud rate (B50, B9600, etc...)
- *
- * RETURNS:
- * none
- */
-static void
-mcfuart_set_baudrate(mcfuart *uart, speed_t baud)
-{
- uint32_t div;
- uint32_t rate;
-
- switch (baud) {
- case B50: rate = 50; break;
- case B75: rate = 75; break;
- case B110: rate = 110; break;
- case B134: rate = 134; break;
- case B150: rate = 150; break;
- case B200: rate = 200; break;
- case B300: rate = 300; break;
- case B600: rate = 600; break;
- case B1200: rate = 1200; break;
- case B2400: rate = 2400; break;
- case B4800: rate = 4800; break;
- case B9600: rate = 9600; break;
- case B19200: rate = 19200; break;
- case B38400: rate = 38400; break;
- case B57600: rate = 57600; break;
-#ifdef B115200
- case B115200: rate = 115200; break;
-#endif
-#ifdef B230400
- case B230400: rate = 230400; break;
-#endif
- default: rate = 9600; break;
- }
-
- div = SYSTEM_CLOCK_FREQUENCY / (rate * 32);
-
- *MCF5206E_UBG1(MBAR,uart->chn) = (uint8_t)((div >> 8) & 0xff);
- *MCF5206E_UBG2(MBAR,uart->chn) = (uint8_t)(div & 0xff);
-}
-
-/*
- * mcfuart_reset --
- * This function perform the hardware initialization of Motorola
- * Coldfire processor on-chip UART controller using parameters
- * filled by the mcfuart_init function.
- *
- * PARAMETERS:
- * uart - pointer to UART channel descriptor structure
- *
- * RETURNS:
- * RTEMS_SUCCESSFUL if channel is initialized successfully, error
- * code in other case
- *
- * ALGORITHM:
- * This function in general follows to algorith described in MCF5206e
- * User's Manual, 12.5 UART Module Initialization Sequence
- */
-rtems_status_code mcfuart_reset(mcfuart *uart)
-{
- register uint32_t chn;
- rtems_status_code rc;
-
- if (uart == NULL)
- return RTEMS_INVALID_ADDRESS;
-
- chn = uart->chn;
-
- /* Reset the receiver and transmitter */
- *MCF5206E_UCR(MBAR,chn) = MCF5206E_UCR_MISC_RESET_RX;
- *MCF5206E_UCR(MBAR,chn) = MCF5206E_UCR_MISC_RESET_TX;
-
- /*
- * Program the vector number for a UART module interrupt, or
- * disable UART interrupts if polled I/O. Enable the desired
- * interrupt sources.
- */
- if (uart->intvec != 0) {
- int_driven_uart[chn - 1].uart = uart;
- int_driven_uart[chn - 1].vec = uart->intvec;
- rc = rtems_interrupt_catch(mcfuart_interrupt_handler, uart->intvec,
- &uart->old_handler);
- if (rc != RTEMS_SUCCESSFUL)
- return rc;
- *MCF5206E_UIVR(MBAR,chn) = uart->intvec;
- *MCF5206E_UIMR(MBAR,chn) = MCF5206E_UIMR_FFULL;
- *MCF5206E_UACR(MBAR,chn) = MCF5206E_UACR_IEC;
- *MCF5206E_IMR(MBAR) &= ~MCF5206E_INTR_BIT(uart->chn == 1 ?
- MCF5206E_INTR_UART_1 :
- MCF5206E_INTR_UART_2);
- } else {
- *MCF5206E_UIMR(MBAR,chn) = 0;
- }
-
- /* Select the receiver and transmitter clock. */
- mcfuart_set_baudrate(uart, B19200); /* dBUG defaults (unfortunately,
- it is differ to termios default */
- *MCF5206E_UCSR(MBAR,chn) = MCF5206E_UCSR_RCS_TIMER | MCF5206E_UCSR_TCS_TIMER;
-
- /* Mode Registers 1,2 - set termios defaults (8N1) */
- *MCF5206E_UCR(MBAR,chn) = MCF5206E_UCR_MISC_RESET_MR;
- *MCF5206E_UMR(MBAR,chn) =
-/* MCF5206E_UMR1_RXRTS | */
- MCF5206E_UMR1_PM_NO_PARITY |
- MCF5206E_UMR1_BC_8;
- *MCF5206E_UMR(MBAR,chn) =
- MCF5206E_UMR2_CM_NORMAL |
-/* MCF5206E_UMR2_TXCTS | */
- MCF5206E_UMR2_SB_1;
-
- /* Enable Receiver and Transmitter */
- *MCF5206E_UCR(MBAR,chn) = MCF5206E_UCR_MISC_RESET_ERR;
- *MCF5206E_UCR(MBAR,chn) = MCF5206E_UCR_TC_ENABLE;
- *MCF5206E_UCR(MBAR,chn) = MCF5206E_UCR_RC_ENABLE;
-
- return RTEMS_SUCCESSFUL;
-}
-
-/*
- * mcfuart_disable --
- * This function disable the operations on Motorola Coldfire UART
- * controller
- *
- * PARAMETERS:
- * uart - pointer to UART channel descriptor structure
- *
- * RETURNS:
- * RTEMS_SUCCESSFUL if UART closed successfuly, or error code in
- * other case
- */
-rtems_status_code mcfuart_disable(mcfuart *uart)
-{
- rtems_status_code rc;
-
- *MCF5206E_UCR(MBAR,uart->chn) =
- MCF5206E_UCR_TC_DISABLE |
- MCF5206E_UCR_RC_DISABLE;
- if (uart->intvec != 0) {
- *MCF5206E_IMR(MBAR) |= MCF5206E_INTR_BIT(uart->chn == 1 ?
- MCF5206E_INTR_UART_1 :
- MCF5206E_INTR_UART_2);
- rc = rtems_interrupt_catch(uart->old_handler, uart->intvec, NULL);
- int_driven_uart[uart->chn - 1].uart = NULL;
- int_driven_uart[uart->chn - 1].vec = 0;
- if (rc != RTEMS_SUCCESSFUL)
- return rc;
- }
- return RTEMS_SUCCESSFUL;
-}
-
-/*
- * mcfuart_set_attributes --
- * This function parse the termios attributes structure and perform
- * the appropriate settings in hardware.
- *
- * PARAMETERS:
- * uart - pointer to the UART descriptor structure
- * t - pointer to termios parameters
- *
- * RETURNS:
- * RTEMS_SUCCESSFUL
- */
-int mcfuart_set_attributes(mcfuart *uart, const struct termios *t)
-{
- int level;
- speed_t baud;
- uint8_t umr1, umr2;
-
- baud = cfgetospeed(t);
- umr1 = 0;
- umr2 = MCF5206E_UMR2_CM_NORMAL;
-
- /* Set flow control */
- if ((t->c_cflag & CRTSCTS) != 0) {
- umr1 |= MCF5206E_UMR1_RXRTS;
- umr2 |= MCF5206E_UMR2_TXCTS;
- }
-
- /* Set character size */
- switch (t->c_cflag & CSIZE) {
- case CS5: umr1 |= MCF5206E_UMR1_BC_5; break;
- case CS6: umr1 |= MCF5206E_UMR1_BC_6; break;
- case CS7: umr1 |= MCF5206E_UMR1_BC_7; break;
- case CS8: umr1 |= MCF5206E_UMR1_BC_8; break;
- }
-
- /* Set number of stop bits */
- if ((t->c_cflag & CSTOPB) != 0) {
- if ((t->c_cflag & CSIZE) == CS5) {
- umr2 |= MCF5206E_UMR2_SB5_2;
- } else {
- umr2 |= MCF5206E_UMR2_SB_2;
- }
- } else {
- if ((t->c_cflag & CSIZE) == CS5) {
- umr2 |= MCF5206E_UMR2_SB5_1;
- } else {
- umr2 |= MCF5206E_UMR2_SB_1;
- }
- }
-
- /* Set parity mode */
- if ((t->c_cflag & PARENB) != 0) {
- if ((t->c_cflag & PARODD) != 0) {
- umr1 |= MCF5206E_UMR1_PM_ODD;
- } else {
- umr1 |= MCF5206E_UMR1_PM_EVEN;
- }
- } else {
- umr1 |= MCF5206E_UMR1_PM_NO_PARITY;
- }
-
- rtems_interrupt_disable(level);
- *MCF5206E_UCR(MBAR,uart->chn) =
- MCF5206E_UCR_TC_DISABLE | MCF5206E_UCR_RC_DISABLE;
- mcfuart_set_baudrate(uart, baud);
- *MCF5206E_UCR(MBAR,uart->chn) = MCF5206E_UCR_MISC_RESET_MR;
- *MCF5206E_UMR(MBAR,uart->chn) = umr1;
- *MCF5206E_UMR(MBAR,uart->chn) = umr2;
- if ((t->c_cflag & CREAD) != 0) {
- *MCF5206E_UCR(MBAR,uart->chn) =
- MCF5206E_UCR_TC_ENABLE | MCF5206E_UCR_RC_ENABLE;
- } else {
- *MCF5206E_UCR(MBAR,uart->chn) = MCF5206E_UCR_TC_ENABLE;
- }
- rtems_interrupt_enable(level);
-
- return RTEMS_SUCCESSFUL;
-}
-
-/*
- * mcfuart_poll_read --
- * This function tried to read character from MCF UART and perform
- * error handling. When parity or framing error occured, return
- * value dependent on termios input mode flags:
- * - received character, if IGNPAR == 1
- * - 0, if IGNPAR == 0 and PARMRK == 0
- * - 0xff and 0x00 on next poll_read invocation, if IGNPAR == 0 and
- * PARMRK == 1
- *
- * PARAMETERS:
- * uart - pointer to UART descriptor structure
- *
- * RETURNS:
- * code of received character or -1 if no characters received.
- */
-int mcfuart_poll_read(mcfuart *uart)
-{
- uint8_t usr;
- int ch;
-
- if (uart->parerr_mark_flag == true) {
- uart->parerr_mark_flag = false;
- return 0;
- }
-
- usr = *MCF5206E_USR(MBAR,uart->chn);
- if ((usr & MCF5206E_USR_RXRDY) != 0) {
- if (((usr & (MCF5206E_USR_FE | MCF5206E_USR_PE)) != 0) &&
- !(uart->c_iflag & IGNPAR)) {
- ch = *MCF5206E_URB(MBAR,uart->chn); /* Clear error bits */
- if (uart->c_iflag & PARMRK) {
- uart->parerr_mark_flag = true;
- ch = 0xff;
- } else {
- ch = 0;
- }
- } else {
- ch = *MCF5206E_URB(MBAR,uart->chn);
- }
- } else
- ch = -1;
- return ch;
-}
-
-/*
- * mcfuart_poll_write --
- * This function transmit buffer byte-by-byte in polling mode.
- *
- * PARAMETERS:
- * uart - pointer to the UART descriptor structure
- * buf - pointer to transmit buffer
- * len - transmit buffer length
- *
- * RETURNS:
- * 0
- */
-ssize_t mcfuart_poll_write(mcfuart *uart, const char *buf, size_t len)
-{
- size_t retval = len;
-
- while (len--) {
- while ((*MCF5206E_USR(MBAR, uart->chn) & MCF5206E_USR_TXRDY) == 0);
- *MCF5206E_UTB(MBAR, uart->chn) = *buf++;
- }
- return retval;
-}
-
-/* mcfuart_interrupt_handler --
- * UART interrupt handler routine
- *
- * PARAMETERS:
- * vec - interrupt vector number
- *
- * RETURNS:
- * none
- */
-static rtems_isr mcfuart_interrupt_handler(rtems_vector_number vec)
-{
- mcfuart *uart;
- register uint8_t usr;
- register uint8_t uisr;
- register int chn;
- register int bp = 0;
-
- /* Find UART descriptor from vector number */
- if (int_driven_uart[0].vec == vec)
- uart = int_driven_uart[0].uart;
- else if (int_driven_uart[1].vec == vec)
- uart = int_driven_uart[1].uart;
- else
- return;
-
- chn = uart->chn;
-
- uisr = *MCF5206E_UISR(MBAR, chn);
- if (uisr & MCF5206E_UISR_DB) {
- *MCF5206E_UCR(MBAR, chn) = MCF5206E_UCR_MISC_RESET_BRK;
- }
-
- /* Receiving */
- while (1) {
- char buf[32];
- usr = *MCF5206E_USR(MBAR,chn);
- if ((bp < sizeof(buf) - 1) && ((usr & MCF5206E_USR_RXRDY) != 0)) {
- /* Receive character and handle frame/parity errors */
- if (((usr & (MCF5206E_USR_FE | MCF5206E_USR_PE)) != 0) &&
- !(uart->c_iflag & IGNPAR)) {
- if (uart->c_iflag & PARMRK) {
- buf[bp++] = 0xff;
- buf[bp++] = 0x00;
- } else {
- buf[bp++] = 0x00;
- }
- } else {
- buf[bp++] = *MCF5206E_URB(MBAR, chn);
- }
-
- /* Reset error condition if any errors has been detected */
- if (usr & (MCF5206E_USR_RB | MCF5206E_USR_FE |
- MCF5206E_USR_PE | MCF5206E_USR_OE)) {
- *MCF5206E_UCR(MBAR, chn) = MCF5206E_UCR_MISC_RESET_ERR;
- }
- } else {
- if (bp != 0)
- rtems_termios_enqueue_raw_characters(uart->tty, buf, bp);
- break;
- }
- }
-
- /* Transmitting */
- while (1) {
- if ((*MCF5206E_USR(MBAR, chn) & MCF5206E_USR_TXRDY) == 0)
- break;
- if (uart->tx_buf != NULL) {
- if (uart->tx_ptr >= uart->tx_buf_len) {
- register int dequeue = uart->tx_buf_len;
-
- *MCF5206E_UIMR(MBAR, uart->chn) = MCF5206E_UIMR_FFULL;
- uart->tx_buf = NULL;
- uart->tx_ptr = uart->tx_buf_len = 0;
- rtems_termios_dequeue_characters(uart->tty, dequeue);
- } else {
- *MCF5206E_UTB(MBAR, chn) = uart->tx_buf[uart->tx_ptr++];
- }
- }
- else
- break;
- }
-}
-
-/* mcfuart_interrupt_write --
- * This function initiate transmitting of the buffer in interrupt mode.
- *
- * PARAMETERS:
- * uart - pointer to the UART descriptor structure
- * buf - pointer to transmit buffer
- * len - transmit buffer length
- *
- * RETURNS:
- * 0
- */
-ssize_t mcfuart_interrupt_write(
- mcfuart *uart,
- const char *buf,
- size_t len
-)
-{
- if (len > 0) {
- uart->tx_buf = buf;
- uart->tx_buf_len = len;
- uart->tx_ptr = 0;
- *MCF5206E_UIMR(MBAR, uart->chn) =
- MCF5206E_UIMR_FFULL | MCF5206E_UIMR_TXRDY;
- while (((*MCF5206E_USR(MBAR,uart->chn) & MCF5206E_USR_TXRDY) != 0) &&
- (uart->tx_ptr < uart->tx_buf_len)) {
- *MCF5206E_UTB(MBAR,uart->chn) = uart->tx_buf[uart->tx_ptr++];
- }
- }
-
- return 0;
-}
-
-/* mcfuart_stop_remote_tx --
- * This function stop data flow from remote device.
- *
- * PARAMETERS:
- * uart - pointer to the UART descriptor structure
- *
- * RETURNS:
- * RTEMS_SUCCESSFUL
- */
-int mcfuart_stop_remote_tx(mcfuart *uart)
-{
- *MCF5206E_UOP0(MBAR, uart->chn) = 1;
- return RTEMS_SUCCESSFUL;
-}
-
-/* mcfuart_start_remote_tx --
- * This function resume data flow from remote device.
- *
- * PARAMETERS:
- * uart - pointer to the UART descriptor structure
- *
- * RETURNS:
- * RTEMS_SUCCESSFUL
- */
-int mcfuart_start_remote_tx(mcfuart *uart)
-{
- *MCF5206E_UOP1(MBAR, uart->chn) = 1;
- return RTEMS_SUCCESSFUL;
-}
diff --git a/c/src/lib/libcpu/m68k/mcf5206/mbus/mcfmbus.c b/c/src/lib/libcpu/m68k/mcf5206/mbus/mcfmbus.c
deleted file mode 100644
index d9e70089f2..0000000000
--- a/c/src/lib/libcpu/m68k/mcf5206/mbus/mcfmbus.c
+++ /dev/null
@@ -1,565 +0,0 @@
-/*
- * MCF5206e MBUS module (I2C bus) driver
- */
-
-/*
- * Copyright (C) 2000 OKTET Ltd., St.-Petersburg, Russia
- * Author: Victor V. Vengerov <vvv@oktet.ru>
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rtems.org/license/LICENSE.
- */
-
-#include "mcf5206/mcfmbus.h"
-#include "mcf5206/mcf5206e.h"
-#include "i2c.h"
-
-/* Events of I2C machine */
-typedef enum i2c_event {
- EVENT_NONE, /* Spurious event */
- EVENT_TRANSFER, /* Start new transfer */
- EVENT_NEXTMSG, /* Start processing of next message in transfer */
- EVENT_ACK, /* Sending finished with ACK */
- EVENT_NACK, /* Sending finished with NACK */
- EVENT_TIMEOUT, /* Timeout occured */
- EVENT_DATA_RECV, /* Data received */
- EVENT_ARB_LOST, /* Arbitration lost */
- EVENT_SLAVE /* Addressed as a slave */
-} i2c_event;
-
-static mcfmbus *mbus;
-
-/*** Auxillary primitives ***/
-
-/* Change state of finite state machine */
-#define next_state(bus,new_state) \
- do { \
- (bus)->state = (new_state); \
- } while (0)
-
-/* Initiate start condition on the I2C bus */
-#define mcfmbus_start(bus) \
- do { \
- *MCF5206E_MBCR((bus)->base) |= MCF5206E_MBCR_MSTA; \
- } while (0)
-
-/* Initiate stop condition on the I2C bus */
-#define mcfmbus_stop(bus) \
- do { \
- *MCF5206E_MBCR((bus)->base) &= ~MCF5206E_MBCR_MSTA; \
- } while (0)
-
-/* Initiate repeat start condition on the I2C bus */
-#define mcfmbus_rstart(bus) \
- do { \
- *MCF5206E_MBCR((bus)->base) |= MCF5206E_MBCR_RSTA; \
- } while (0)
-
-/* Send byte to the bus */
-#define mcfmbus_send(bus,byte) \
- do { \
- *MCF5206E_MBDR((bus)->base) = (byte); \
- } while (0)
-
-/* Set transmit mode */
-#define mcfmbus_tx_mode(bus) \
- do { \
- *MCF5206E_MBCR((bus)->base) |= MCF5206E_MBCR_MTX; \
- } while (0)
-
-/* Set receive mode */
-#define mcfmbus_rx_mode(bus) \
- do { \
- *MCF5206E_MBCR((bus)->base) &= ~MCF5206E_MBCR_MTX; \
- (void)*MCF5206E_MBDR((bus)->base); \
- } while (0)
-
-
-/* Transmit acknowledge when byte received */
-#define mcfmbus_send_ack(bus) \
- do { \
- *MCF5206E_MBCR((bus)->base) &= ~MCF5206E_MBCR_TXAK; \
- } while (0)
-
-/* DO NOT transmit acknowledge when byte received */
-#define mcfmbus_send_nack(bus) \
- do { \
- *MCF5206E_MBCR((bus)->base) |= MCF5206E_MBCR_TXAK; \
- } while (0)
-
-#define mcfmbus_error(bus,err_status) \
- do { \
- do { \
- (bus)->cmsg->status = (err_status); \
- (bus)->cmsg++; \
- } while (((bus)->cmsg - (bus)->msg < (bus)->nmsg) && \
- ((bus)->cmsg->flags & I2C_MSG_ERRSKIP)); \
- bus->cmsg--; \
- } while (0)
-
-/* mcfmbus_get_event --
- * Read MBUS module status register, determine interrupt reason and
- * return appropriate event.
- *
- * PARAMETERS:
- * bus - pointer to MBUS module descriptor structure
- *
- * RETURNS:
- * event code
- */
-static i2c_event
-mcfmbus_get_event(mcfmbus *bus)
-{
- i2c_event event;
- uint8_t status, control;
- rtems_interrupt_level level;
- rtems_interrupt_disable(level);
- status = *MCF5206E_MBSR(bus->base);
- control = *MCF5206E_MBCR(bus->base);
-
- if (status & MCF5206E_MBSR_MIF) { /* Interrupt occured */
- if (status & MCF5206E_MBSR_MAAS) {
- event = EVENT_SLAVE;
- *MCF5206E_MBCR(bus->base) = control; /* To clear Addressed As Slave
- condition */
- } else if (status & MCF5206E_MBSR_MAL) { /* Arbitration lost */
- *MCF5206E_MBSR(bus->base) = status & ~MCF5206E_MBSR_MAL;
- event = EVENT_ARB_LOST;
- }
- else if (control & MCF5206E_MBCR_MTX) { /* Trasmit mode */
- if (status & MCF5206E_MBSR_RXAK)
- event = EVENT_NACK;
- else
- event = EVENT_ACK;
- } else { /* Received */
- event = EVENT_DATA_RECV;
- }
-
- /* Clear interrupt condition */
- *MCF5206E_MBSR(bus->base) &= ~MCF5206E_MBSR_MIF;
- } else {
- event = EVENT_NONE;
- }
- rtems_interrupt_enable(level);
- return event;
-}
-
-static void mcfmbus_machine_error(mcfmbus *bus, i2c_event event)
-{
-}
-
-/* mcfmbus_machine --
- * finite state machine for I2C bus protocol
- *
- * PARAMETERS:
- * bus - pointer to ColdFire MBUS descriptor structure
- * event - I2C event
- *
- * RETURNS:
- * none
- */
-static void mcfmbus_machine(mcfmbus *bus, i2c_event event)
-{
- uint8_t b;
-
- switch (bus->state) {
- case STATE_IDLE:
- switch (event) {
- case EVENT_NEXTMSG: /* Start new message processing */
- bus->cmsg++;
- /* FALLTHRU */
-
- case EVENT_TRANSFER: /* Initiate new transfer */
- if (bus->cmsg - bus->msg >= bus->nmsg) {
- mcfmbus_stop(bus);
- next_state(bus, STATE_IDLE);
- bus->msg = bus->cmsg = NULL;
- bus->nmsg = bus->byte = 0;
- bus->done((void *)bus->done_arg_ptr);
- break;
- }
-
- /* Initiate START or REPEATED START condition on the bus */
- if (event == EVENT_TRANSFER) {
- mcfmbus_start(bus);
- } else { /* (event == EVENT_NEXTMSG) */
- mcfmbus_rstart(bus);
- }
-
- bus->byte = 0;
- mcfmbus_tx_mode(bus);
-
- /* Initiate slave address sending */
- if (bus->cmsg->flags & I2C_MSG_ADDR_10) {
- i2c_address a = bus->cmsg->addr;
- b = 0xf0 | (((a >> 8) & 0x03) << 1);
- if (bus->cmsg->flags & I2C_MSG_WR) {
- mcfmbus_send(bus, b);
- next_state(bus, STATE_ADDR_1_W);
- } else {
- mcfmbus_send(bus, b | 1);
- next_state(bus, STATE_ADDR_1_R);
- }
- } else {
- b = (bus->cmsg->addr & ~0x01);
-
- if (bus->cmsg->flags & I2C_MSG_WR) {
- next_state(bus, STATE_SENDING);
- } else {
- next_state(bus, STATE_ADDR_7);
- b |= 1;
- }
-
- mcfmbus_send(bus, b);
- }
- break;
-
- default:
- mcfmbus_machine_error(bus, event);
- break;
- }
- break;
-
- case STATE_ADDR_7:
- switch (event) {
- case EVENT_ACK:
- mcfmbus_rx_mode(bus);
- if (bus->cmsg->len <= 1)
- mcfmbus_send_nack(bus);
- else
- mcfmbus_send_ack(bus);
- next_state(bus, STATE_RECEIVING);
- break;
-
- case EVENT_NACK:
- mcfmbus_error(bus, I2C_NO_DEVICE);
- next_state(bus, STATE_IDLE);
- mcfmbus_machine(bus, EVENT_NEXTMSG);
- break;
-
- case EVENT_ARB_LOST:
- mcfmbus_error(bus, I2C_ARBITRATION_LOST);
- next_state(bus, STATE_IDLE);
- mcfmbus_machine(bus, EVENT_NEXTMSG);
- break;
-
- default:
- mcfmbus_machine_error(bus, event);
- break;
- }
- break;
-
- case STATE_ADDR_1_R:
- case STATE_ADDR_1_W:
- switch (event) {
- case EVENT_ACK: {
- uint8_t b = (bus->cmsg->addr & 0xff);
- mcfmbus_send(bus, b);
- if (bus->state == STATE_ADDR_1_W) {
- next_state(bus, STATE_SENDING);
- } else {
- i2c_address a;
- mcfmbus_rstart(bus);
- mcfmbus_tx_mode(bus);
- a = bus->cmsg->addr;
- b = 0xf0 | (((a >> 8) & 0x03) << 1) | 1;
- mcfmbus_send(bus, b);
- next_state(bus, STATE_ADDR_7);
- }
- break;
- }
-
- case EVENT_NACK:
- mcfmbus_error(bus, I2C_NO_DEVICE);
- next_state(bus, STATE_IDLE);
- mcfmbus_machine(bus, EVENT_NEXTMSG);
- break;
-
- case EVENT_ARB_LOST:
- mcfmbus_error(bus, I2C_ARBITRATION_LOST);
- next_state(bus, STATE_IDLE);
- mcfmbus_machine(bus, EVENT_NEXTMSG);
- break;
-
- default:
- mcfmbus_machine_error(bus, event);
- break;
- }
- break;
-
- case STATE_SENDING:
- switch (event) {
- case EVENT_ACK:
- if (bus->byte == bus->cmsg->len) {
- next_state(bus, STATE_IDLE);
- mcfmbus_machine(bus, EVENT_NEXTMSG);
- } else {
- mcfmbus_send(bus, bus->cmsg->buf[bus->byte++]);
- next_state(bus, STATE_SENDING);
- }
- break;
-
- case EVENT_NACK:
- if (bus->byte == 0) {
- mcfmbus_error(bus, I2C_NO_DEVICE);
- } else {
- mcfmbus_error(bus, I2C_NO_ACKNOWLEDGE);
- }
- next_state(bus, STATE_IDLE);
- mcfmbus_machine(bus, EVENT_NEXTMSG);
- break;
-
- case EVENT_ARB_LOST:
- mcfmbus_error(bus, I2C_ARBITRATION_LOST);
- next_state(bus, STATE_IDLE);
- mcfmbus_machine(bus, EVENT_NEXTMSG);
- break;
-
- default:
- mcfmbus_machine_error(bus, event);
- break;
- }
- break;
-
- case STATE_RECEIVING:
- switch (event) {
- case EVENT_DATA_RECV:
- if (bus->cmsg->len - bus->byte <= 2) {
- mcfmbus_send_nack(bus);
- if (bus->cmsg->len - bus->byte <= 1) {
- if (bus->cmsg - bus->msg + 1 == bus->nmsg)
- mcfmbus_stop(bus);
- else
- mcfmbus_rstart(bus);
- }
- } else {
- mcfmbus_send_ack(bus);
- }
- bus->cmsg->buf[bus->byte++] = *MCF5206E_MBDR(bus->base);
- if (bus->cmsg->len == bus->byte) {
- next_state(bus,STATE_IDLE);
- mcfmbus_machine(bus, EVENT_NEXTMSG);
- } else {
- next_state(bus,STATE_RECEIVING);
- }
- break;
-
- case EVENT_ARB_LOST:
- mcfmbus_error(bus, I2C_ARBITRATION_LOST);
- next_state(bus, STATE_IDLE);
- mcfmbus_machine(bus, EVENT_NEXTMSG);
- break;
-
- default:
- mcfmbus_machine_error(bus, event);
- break;
- }
- break;
- }
-}
-
-/* mcfmbus_interrupt_handler --
-* MBUS module interrupt handler routine
-*
-* PARAMETERS:
-* vector - interrupt vector number (not used)
-*
-* RETURNS:
-* none
-*/
-static rtems_isr mcfmbus_interrupt_handler(rtems_vector_number vector)
-{
- i2c_event event;
- event = mcfmbus_get_event(mbus);
- mcfmbus_machine(mbus, event);
-}
-
-/* mcfmbus_poll --
-* MBUS module poll routine; used to poll events when I2C driver
-* operates in poll-driven mode.
-*
-* PARAMETERS:
-* none
-*
-* RETURNS:
-* none
-*/
-void
-mcfmbus_poll(mcfmbus *bus)
-{
- i2c_event event;
- event = mcfmbus_get_event(bus);
- if (event != EVENT_NONE)
- mcfmbus_machine(bus, event);
-}
-
-/* mcfmbus_select_clock_divider --
-* Select divider for system clock which is used for I2C bus clock
-* generation. Not each divider can be selected for I2C bus; this
-* function select nearest larger or equal divider.
-*
-* PARAMETERS:
-* i2c_bus - pointer to the bus descriptor structure
-* divider - system frequency divider for I2C serial clock.
-* RETURNS:
-* RTEMS_SUCCESSFUL, if operation performed successfully, or
-* RTEMS error code when failed.
-*/
-rtems_status_code
-mcfmbus_select_clock_divider(mcfmbus *i2c_bus, int divider)
-{
- int i;
- int mbc;
- struct {
- int divider;
- int mbc;
- } dividers[] ={
- { 20, 0x20 }, { 22, 0x21 }, { 24, 0x22 }, { 26, 0x23 },
- { 28, 0x00 }, { 30, 0x01 }, { 32, 0x25 }, { 34, 0x02 },
- { 36, 0x26 }, { 40, 0x03 }, { 44, 0x04 }, { 48, 0x05 },
- { 56, 0x06 }, { 64, 0x2a }, { 68, 0x07 }, { 72, 0x2B },
- { 80, 0x08 }, { 88, 0x09 }, { 96, 0x2D }, { 104, 0x0A },
- { 112, 0x2E }, { 128, 0x0B }, { 144, 0x0C }, { 160, 0x0D },
- { 192, 0x0E }, { 224, 0x32 }, { 240, 0x0F }, { 256, 0x33 },
- { 288, 0x10 }, { 320, 0x11 }, { 384, 0x12 }, { 448, 0x36 },
- { 480, 0x13 }, { 512, 0x37 }, { 576, 0x14 }, { 640, 0x15 },
- { 768, 0x16 }, { 896, 0x3A }, { 960, 0x17 }, { 1024, 0x3B },
- { 1152, 0x18 }, { 1280, 0x19 }, { 1536, 0x1A }, { 1792, 0x3E },
- { 1920, 0x1B }, { 2048, 0x3F }, { 2304, 0x1C }, { 2560, 0x1D },
- { 3072, 0x1E }, { 3840, 0x1F }
- };
-
- if (i2c_bus == NULL)
- return RTEMS_INVALID_ADDRESS;
-
- for (i = 0, mbc = -1; i < sizeof(dividers)/sizeof(dividers[0]); i++) {
- mbc = dividers[i].mbc;
- if (dividers[i].divider >= divider) {
- break;
- }
- }
- *MCF5206E_MFDR(i2c_bus->base) = mbc;
- return RTEMS_SUCCESSFUL;
-}
-
-/* mcfmbus_initialize --
-* Initialize ColdFire MBUS I2C bus controller.
-*
-* PARAMETERS:
-* i2c_bus - pointer to the bus descriptor structure
-* base - ColdFire internal peripherial base address
-*
-* RETURNS:
-* RTEMS_SUCCESSFUL, or RTEMS error code when initialization failed.
-*/
-rtems_status_code mcfmbus_initialize(mcfmbus *i2c_bus, uint32_t base)
-{
- rtems_interrupt_level level;
- rtems_status_code sc;
-
- if (mbus != NULL) /* Check if already initialized */
- return RTEMS_RESOURCE_IN_USE;
-
- if (i2c_bus == NULL)
- return RTEMS_INVALID_ADDRESS;
-
-
- i2c_bus->base = base;
- i2c_bus->state = STATE_IDLE;
- i2c_bus->msg = NULL;
- i2c_bus->cmsg = NULL;
- i2c_bus->nmsg = 0;
- i2c_bus->byte = 0;
-
- sc = rtems_interrupt_catch(
- mcfmbus_interrupt_handler,
- 24 + ((*MCF5206E_ICR(base, MCF5206E_INTR_MBUS) & MCF5206E_ICR_IL) >>
- MCF5206E_ICR_IL_S),
- &i2c_bus->oldisr
- );
- if (sc != RTEMS_SUCCESSFUL)
- return sc;
-
- mbus = i2c_bus;
- rtems_interrupt_disable(level);
- *MCF5206E_IMR(base) &= ~MCF5206E_INTR_BIT(MCF5206E_INTR_MBUS);
- *MCF5206E_MBCR(base) = 0;
- *MCF5206E_MBSR(base) = 0;
- *MCF5206E_MBDR(base) = 0x1F; /* Maximum possible divider is 3840 */
- *MCF5206E_MBCR(base) = MCF5206E_MBCR_MEN | MCF5206E_MBCR_MIEN;
- rtems_interrupt_enable(level);
-
- return RTEMS_SUCCESSFUL;
-}
-
-/* mcfmbus_i2c_transfer --
-* Initiate multiple-messages transfer over I2C bus via ColdFire MBUS
-* controller.
-*
-* PARAMETERS:
-* bus - pointer to MBUS controller descriptor
-* nmsg - number of messages
-* msg - pointer to messages array
-* done - function which is called when transfer is finished
-* done_arg_ptr - arbitrary argument ptr passed to done funciton
-*
-* RETURNS:
-* RTEMS_SUCCESSFUL if transfer initiated successfully, or error
-* code when failed.
-*/
-rtems_status_code mcfmbus_i2c_transfer(
- mcfmbus *bus,
- int nmsg,
- i2c_message *msg,
- i2c_transfer_done done,
- void *done_arg_ptr
-)
-{
- if (bus != mbus)
- return RTEMS_NOT_CONFIGURED;
-
- bus->done = done;
- bus->done_arg_ptr = (uintptr_t) done_arg_ptr;
- bus->cmsg = bus->msg = msg;
- bus->nmsg = nmsg;
- bus->byte = 0;
- bus->state = STATE_IDLE;
- mcfmbus_machine(bus, EVENT_TRANSFER);
- return RTEMS_SUCCESSFUL;
-}
-
-
-/* mcfmbus_i2c_done --
-* Close ColdFire MBUS I2C bus controller and release all resources.
-*
-* PARAMETERS:
-* bus - pointer to MBUS controller descriptor
-*
-* RETURNS:
-* RTEMS_SUCCESSFUL, if transfer initiated successfully, or error
-* code when failed.
-*/
-rtems_status_code mcfmbus_i2c_done(mcfmbus *i2c_bus)
-{
- rtems_status_code sc;
- uint32_t base;
- if (mbus == NULL)
- return RTEMS_NOT_CONFIGURED;
-
- if (mbus != i2c_bus)
- return RTEMS_INVALID_ADDRESS;
-
- base = i2c_bus->base;
-
- *MCF5206E_IMR(base) |= MCF5206E_INTR_BIT(MCF5206E_INTR_MBUS);
- *MCF5206E_MBCR(base) = 0;
-
- sc = rtems_interrupt_catch(
- i2c_bus->oldisr,
- 24 + ((*MCF5206E_ICR(base, MCF5206E_INTR_MBUS) & MCF5206E_ICR_IL) >>
- MCF5206E_ICR_IL_S),
- NULL
- );
- return sc;
-}
diff --git a/c/src/lib/libcpu/m68k/mcf5206/timer/timer.c b/c/src/lib/libcpu/m68k/mcf5206/timer/timer.c
deleted file mode 100644
index dbeebc80e0..0000000000
--- a/c/src/lib/libcpu/m68k/mcf5206/timer/timer.c
+++ /dev/null
@@ -1,158 +0,0 @@
-/**
- * @file
- * @brief Timer Init
- *
- * This module initializes TIMER 2 for on the MCF5206E for benchmarks.
- */
-
-/*
- * Copyright (C) 2000 OKTET Ltd., St.-Petersburg, Russia
- * Author: Victor V. Vengerov <vvv@oktet.ru>
- *
- * Based on work:
- * Author:
- * David Fiddes, D.J@fiddes.surfaid.org
- * http://www.calm.hw.ac.uk/davidf/coldfire/
- *
- * COPYRIGHT (c) 1989-1998.
- * On-Line Applications Research Corporation (OAR).
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rtems.org/license/LICENSE.
- */
-
-#include <rtems.h>
-#include <bsp.h>
-#include <rtems/btimer.h>
-#include "mcf5206/mcf5206e.h"
-
-#define TRR2_VAL 65530
-
-uint32_t Timer_interrupts;
-
-bool benchmark_timer_find_average_overhead;
-
-/* External assembler interrupt handler routine */
-extern rtems_isr timerisr(rtems_vector_number vector);
-
-
-/* benchmark_timer_initialize --
- * Initialize timer 2 for accurate time measurement.
- *
- * PARAMETERS:
- * none
- *
- * RETURNS:
- * none
- */
-void
-benchmark_timer_initialize(void)
-{
- /* Catch timer2 interrupts */
- set_vector(timerisr, BSP_INTVEC_TIMER2, 0);
-
- /* Initialize interrupts for timer2 */
- *MCF5206E_ICR(MBAR, MCF5206E_INTR_TIMER_2) =
- MCF5206E_ICR_AVEC |
- ((BSP_INTLVL_TIMER2 << MCF5206E_ICR_IL_S) & MCF5206E_ICR_IL) |
- ((BSP_INTPRIO_TIMER2 << MCF5206E_ICR_IP_S) & MCF5206E_ICR_IP);
-
- /* Enable interrupts from timer2 */
- *MCF5206E_IMR(MBAR) &= ~MCF5206E_INTR_BIT(MCF5206E_INTR_TIMER_2);
-
- /* Reset Timer */
- *MCF5206E_TMR(MBAR, 2) = MCF5206E_TMR_RST;
- *MCF5206E_TMR(MBAR, 2) = MCF5206E_TMR_ICLK_STOP;
- *MCF5206E_TMR(MBAR, 2) = MCF5206E_TMR_RST;
- *MCF5206E_TCN(MBAR, 2) = 0; /* Zero timer counter */
- Timer_interrupts = 0; /* Clear timer ISR counter */
- *MCF5206E_TER(MBAR, 2) = MCF5206E_TER_REF | MCF5206E_TER_CAP; /*clr pend*/
- *MCF5206E_TRR(MBAR, 2) = TRR2_VAL - 1;
- *MCF5206E_TMR(MBAR, 2) =
- (((BSP_SYSTEM_FREQUENCY / 1000000) << MCF5206E_TMR_PS_S) &
- MCF5206E_TMR_PS) |
- MCF5206E_TMR_CE_NONE | MCF5206E_TMR_ORI | MCF5206E_TMR_FRR |
- MCF5206E_TMR_RST;
- *MCF5206E_TMR(MBAR, 2) |= MCF5206E_TMR_ICLK_MSCLK;
-}
-
-/*
- * The following controls the behavior of benchmark_timer_read().
- *
- * FIND_AVG_OVERHEAD * instructs the routine to return the "raw" count.
- *
- * AVG_OVEREHAD is the overhead for starting and stopping the timer. It
- * is usually deducted from the number returned.
- *
- * LEAST_VALID is the lowest number this routine should trust. Numbers
- * below this are "noise" and zero is returned.
- */
-
-#define AVG_OVERHEAD 0 /* It typically takes 2.0 microseconds */
- /* (Y countdowns) to start/stop the timer. */
- /* This value is in microseconds. */
-#define LEAST_VALID 1 /* Don't trust a clicks value lower than this */
-
-/* benchmark_timer_read --
- * Read timer value in microsecond units since timer start.
- *
- * PARAMETERS:
- * none
- *
- * RETURNS:
- * number of microseconds since timer has been started
- */
-benchmark_timer_t
-benchmark_timer_read( void )
-{
- uint16_t clicks;
- uint32_t total;
-
- /*
- * Read the timer and see how many clicks it has been since counter
- * rolled over.
- */
- clicks = *MCF5206E_TCN(MBAR, 2);
-
- /* Stop Timer... */
- *MCF5206E_TMR(MBAR, 2) = MCF5206E_TMR_ICLK_STOP |
- MCF5206E_TMR_RST;
-
- /*
- * Total is calculated by taking into account the number of timer
- * overflow interrupts since the timer was initialized and clicks
- * since the last interrupts.
- */
-
- total = (Timer_interrupts * TRR2_VAL) + clicks;
-
- if ( benchmark_timer_find_average_overhead == 1 )
- return total; /* in XXX microsecond units */
-
- if ( total < LEAST_VALID )
- return 0; /* below timer resolution */
-
- /*
- * Return the count in microseconds
- */
- return (total - AVG_OVERHEAD);
-}
-
-/* benchmark_timer_disable_subtracting_average_overhead --
- * This routine is invoked by the "Check Timer" (tmck) test in the
- * RTEMS Timing Test Suite. It makes the benchmark_timer_read routine not
- * subtract the overhead required to initialize and read the benchmark
- * timer.
- *
- * PARAMETERS:
- * find_flag - boolean flag, true if overhead must not be subtracted.
- *
- * RETURNS:
- * none
- */
-void
-benchmark_timer_disable_subtracting_average_overhead(bool find_flag)
-{
- benchmark_timer_find_average_overhead = find_flag;
-}
diff --git a/c/src/lib/libcpu/m68k/mcf5206/timer/timerisr.S b/c/src/lib/libcpu/m68k/mcf5206/timer/timerisr.S
deleted file mode 100644
index bbcf6e2d6a..0000000000
--- a/c/src/lib/libcpu/m68k/mcf5206/timer/timerisr.S
+++ /dev/null
@@ -1,48 +0,0 @@
-/**
- * @file
- * @brief Handle MCF5206 TIMER2 interrupts
- *
- * All code in this routine is pure overhead which can perturb the
- * accuracy of RTEMS' timing test suite.
- *
- * See also: benchmark_timer_read()
- *
- * To reduce overhead this is best to be the "rawest" hardware interupt
- * handler you can write. This should be the only interrupt which can
- * occur during the measured time period.
- *
- * An external counter, Timer_interrupts, is incremented.
- */
-
-/*
- * Copyright (C) 2000 OKTET Ltd., St.-Petersburg, Russia
- * Author: Victor V. Vengerov <vvv@oktet.ru>
- *
- * This file based on work:
- * Author:
- * David Fiddes, D.J@fiddes.surfaid.org
- * http://www.calm.hw.ac.uk/davidf/coldfire/
- *
- * COPYRIGHT (c) 1989-1998.
- * On-Line Applications Research Corporation (OAR).
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rtems.org/license/LICENSE.
- */
-
-#include <rtems/asm.h>
-#include <bsp.h>
-#include "mcf5206/mcf5206e.h"
-
-BEGIN_CODE
- PUBLIC(timerisr)
-SYM(timerisr):
- move.l a0, a7@-
- move.l #MCF5206E_TER(BSP_MEM_ADDR_IMM, 2), a0
- move.b # (MCF5206E_TER_REF + MCF5206E_TER_CAP), (a0)
- addq.l #1,SYM(Timer_interrupts) | increment timer value
- move.l a7@+, a0
- rte
-END_CODE
-END