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authorSebastian Huber <sebastian.huber@embedded-brains.de>2018-04-25 10:22:37 +0200
committerSebastian Huber <sebastian.huber@embedded-brains.de>2018-04-25 10:30:20 +0200
commit8f12ee32b647fa6b26c20ba1b6ba7133e5349cea (patch)
tree11c9b64b72ecc3429986224e42c9b33e41b5ffda /c/src/lib/libbsp/powerpc
parent25787041cf14b1e5237ef9539cd81c8090a8ba9f (diff)
downloadrtems-8f12ee32b647fa6b26c20ba1b6ba7133e5349cea.tar.bz2
bsp/mvme5500: Move source files to bsps
This patch is a part of the BSP source reorganization. Update #3285.
Diffstat (limited to 'c/src/lib/libbsp/powerpc')
-rw-r--r--c/src/lib/libbsp/powerpc/mvme5500/GT64260/GT64260TWSI.c214
-rw-r--r--c/src/lib/libbsp/powerpc/mvme5500/GT64260/MVME5500I2C.c107
-rw-r--r--c/src/lib/libbsp/powerpc/mvme5500/Makefile.am6
-rw-r--r--c/src/lib/libbsp/powerpc/mvme5500/vectors/exceptionhandler.c221
4 files changed, 3 insertions, 545 deletions
diff --git a/c/src/lib/libbsp/powerpc/mvme5500/GT64260/GT64260TWSI.c b/c/src/lib/libbsp/powerpc/mvme5500/GT64260/GT64260TWSI.c
deleted file mode 100644
index 6b5b46e511..0000000000
--- a/c/src/lib/libbsp/powerpc/mvme5500/GT64260/GT64260TWSI.c
+++ /dev/null
@@ -1,214 +0,0 @@
-/*
- * Two-Wire Serial Interface (TWSI) support for the GT64260
- */
-
-/*
- * Copyright (c) 2004, Brookhaven National Laboratory and
- * Shuchen Kate Feng <feng1@bnl.gov>
- * All rights reserved.
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution.
- *
- * See section 24:TWSI interface of "the GT-64260B System Controller
- * for powerPc Processors Data Sheet".
- *
- * For full TWSI protocol description look in Philips Semiconductor
- * TWSI spec.
- *
- * We need it to read out I2C devices used for the MVME5500
- * (eg. the memory SPD and VPD).
- */
-
-#include <libcpu/spr.h> /*registers.h included here for rtems_bsp_delay()*/
-#include <libcpu/io.h>
-#include <rtems/bspIo.h>
-
-#include "bsp/gtreg.h"
-#include "bsp/GT64260TWSI.h"
-
-#define MAX_LOOP 100
-
-#define TWSI_DEBUG 0
-
-static int TWSI_initFlg = 0; /* TWSI Initialization Flag */
-
-void GT64260TWSIinit(void)
-{
- if ( !TWSI_initFlg ) {
-#if TWSI_DEBUG
- printk("GT64260TWSIinit(");
-#endif
- outl( 0, TWSI_SFT_RST); /* soft reset */
- rtems_bsp_delay(1000);
-
- /* See 24.2.5 : Assume bus speed is 133MHZ
- * Try to be close to the default frequency : 62.5KHZ
- * value 0x2c: 69.27 KHz TWSI bus clock
- */
- outl(0x2c, TWSI_BAUDE_RATE);
- rtems_bsp_delay(1000);
-
- /* Set Acknowledge and enable TWSI in the Control register */
- outl(0x44, TWSI_CTRL);
- rtems_bsp_delay(4000);
- TWSI_initFlg = 1;
-#if TWSI_DEBUG
- printk(")\n");
-#endif
- }
-}
-
-/* return the interrupt flag */
-static int GT64260TWSIintFlag(void)
-{
- unsigned int loop;
-
- for (loop = 0; loop < MAX_LOOP; loop++ ) {
- /* Return 1 if the interrupt flag is set */
- if (inl(TWSI_CTRL) & TWSI_INTFLG)
- return(1);
- rtems_bsp_delay(1000);
- }
- return(0);
-}
-
-int GT64260TWSIstop(void)
-{
-
-#if TWSI_DEBUG
- printk("GT64260TWSIstop(");
-#endif
-
- outl((inl(TWSI_CTRL) | TWSI_STOP), TWSI_CTRL);
- rtems_bsp_delay(1000);
-
- /* Check if interrupt flag bit is set*/
- if (GT64260TWSIintFlag()) {
- outl((inl( TWSI_CTRL) & ~TWSI_INTFLG), TWSI_CTRL);
- rtems_bsp_delay(1000);
-#if TWSI_DEBUG
- printk(")\n");
-#endif
- return(0);
- }
-#if TWSI_DEBUG
- printk("NoIntFlag\n");
-#endif
- return(-1);
-}
-
-int GT64260TWSIstart(void)
-{
- unsigned int loop;
- unsigned int status;
-
-#if TWSI_DEBUG
- printk("GT64260TWSIstart(");
-#endif
- /* Initialize the TWSI interface */
- GT64260TWSIinit();
-
- /* set the start bit */
- outl((TWSI_START | TWSI_TWSIEN), TWSI_CTRL);
- rtems_bsp_delay(1000);
-
- if (GT64260TWSIintFlag()) {
- /* Check for completion of START sequence */
- for (loop = 0; loop<MAX_LOOP; loop++ ) {
- /* if (start condition transmitted) ||
- * (repeated start condition transmitted )
- */
- if (((status= inl( TWSI_STATUS)) == 8) || (status == 0x10)) {
-#if TWSI_DEBUG
- printk(")");
-#endif
- return(0);
- }
- rtems_bsp_delay(1000);
- }
- }
- /* if loop ends or intFlag ==0 */
- GT64260TWSIstop();
- return(-1);
-}
-
-int GT64260TWSIread(unsigned char * pData, int lastByte)
-{
- unsigned int loop;
-
-#if TWSI_DEBUG
- printk("GT64260TWSIread(");
-#endif
- /* Clear INTFLG and set ACK and ENABLE bits */
- outl((TWSI_ACK | TWSI_TWSIEN), TWSI_CTRL);
- rtems_bsp_delay(1000);
-
- if (GT64260TWSIintFlag()) {
- for (loop = 0; loop< MAX_LOOP; loop++) {
- /* if Master received read data, acknowledge transmitted */
- if ( (inl( TWSI_STATUS) == 0x50)) {
- *pData = (unsigned char) inl( TWSI_DATA);
- rtems_bsp_delay(1500);
-
- /* Clear INTFLAG and set Enable bit only */
- if (lastByte)
- outl(TWSI_TWSIEN, TWSI_CTRL);
- rtems_bsp_delay(1500);
-#if TWSI_DEBUG
- printk(")\n");
-#endif
- return(0);
- }
- rtems_bsp_delay(1000);
- } /* end for */
- }
- /* if loop ends or intFlag ==0 */
- GT64260TWSIstop();
- return(-1);
-}
-
-/* do a TWSI write cycle on the TWSI bus*/
-int GT64260TWSIwrite(unsigned char Data)
-{
- unsigned int loop;
- unsigned int status;
-
-#if TWSI_DEBUG
- printk("GT64260TWSIwrite(");
-#endif
- /* Write data into the TWSI data register */
- outl(((unsigned int) Data), TWSI_DATA);
- rtems_bsp_delay(1000);
-
- /* Clear INTFLG in the control register to drive data onto TWSI bus */
- outl(0, TWSI_CTRL);
- rtems_bsp_delay(1000);
-
- if (GT64260TWSIintFlag() ) {
- for (loop = 0; loop< MAX_LOOP; loop++) {
- rtems_bsp_delay(1000);
- /* if address + write bit transmitted, acknowledge not received */
- if ( (status = inl( TWSI_STATUS)) == 0x20) {
- /* No device responding, generate STOP and return -1 */
- printk("no device responding\n");
- GT64260TWSIstop();
- return(-1);
- }
- /* if (address + write bit transmitted, acknowledge received)
- * (Master transmmitted data byte, acknowledge received)
- * (address + read bit transmitted, acknowledge received)
- */
- if ((status == 0x18)||(status == 0x28)||(status == 0x40)) {
-#if TWSI_DEBUG
- printk(")\n");
-#endif
- return(0);
- }
- rtems_bsp_delay(1000);
- } /* end for */
- }
- printk("No correct status, timeout\n");
- GT64260TWSIstop();
- return(-1);
-}
diff --git a/c/src/lib/libbsp/powerpc/mvme5500/GT64260/MVME5500I2C.c b/c/src/lib/libbsp/powerpc/mvme5500/GT64260/MVME5500I2C.c
deleted file mode 100644
index 107b8f15cb..0000000000
--- a/c/src/lib/libbsp/powerpc/mvme5500/GT64260/MVME5500I2C.c
+++ /dev/null
@@ -1,107 +0,0 @@
-/*
- * To read information of the EEPROM via the I2C
- */
-
-/*
- * Copyright (c) 2003, 2004 Brookhaven National Laboratory
- * Author: S. Kate Feng <feng1@bnl.gov>
- * All rights reserved.
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution.
- */
-
-#include <bsp.h>
-#include <rtems/bspIo.h> /* printk */
-#include <stdint.h> /* uint32_t */
-#include "bsp/GT64260TWSI.h"
-
-/* #define I2C_DEBUG*/
-
-static unsigned char I2cAddrPack(unsigned char busAddr,uint32_t offset)
-{
- return(busAddr | ((offset & 0x700) >> 7));
-}
-
-static unsigned char I2cDevByteAddr(uint32_t devA2A1A0, unsigned char byteNum)
-{
- return(( devA2A1A0 >>(byteNum*8)) & 0xff);
-}
-/****************************************************************************
-* I2Cread_eeprom - read EEPROM VPD from the I2C
-*/
-int I2Cread_eeprom(
- unsigned char I2cBusAddr,
- uint32_t devA2A1A0,
- uint32_t AddrBytes,
- unsigned char *pBuff,
- uint32_t numBytes
-)
-{
- int status=0, lastByte=0;
-
- switch (AddrBytes) {
- case 1:
- if ((status=GT64260TWSIstart()) != -1) {
- if ((status=GT64260TWSIwrite(I2cAddrPack(I2cBusAddr,devA2A1A0)))!= -1){
- if ((status=GT64260TWSIwrite(devA2A1A0))!=-1){
- if ((status=GT64260TWSIstart())!=-1)
- status=GT64260TWSIwrite(I2cAddrPack((I2cBusAddr|0x01),devA2A1A0));
- }
- }
- }
- break;
- case 2:
- if ((status=GT64260TWSIstart())!=-1) {
- if ((status=GT64260TWSIwrite(I2cBusAddr))!= -1) {
- if ((status=GT64260TWSIwrite(I2cDevByteAddr(devA2A1A0,1)))!=-1) {
- if ((status=GT64260TWSIwrite(I2cDevByteAddr(devA2A1A0,0)))!= -1){
- if ((status=GT64260TWSIstart()) != -1) {
- status = GT64260TWSIwrite((I2cBusAddr | 0x01));
- }
- }
- }
- }
- }
- break;
- case 3:
- if ((status = GT64260TWSIstart())!= -1) {
- if ((status = GT64260TWSIwrite(I2cBusAddr))!= -1) {
- if ((status=GT64260TWSIwrite(I2cDevByteAddr(devA2A1A0,2)))!= -1){
- if ((status=GT64260TWSIwrite(I2cDevByteAddr(devA2A1A0,1)))!= -1){
- if ((status=GT64260TWSIwrite(I2cDevByteAddr(devA2A1A0,0)))!= -1){
- if ((status=GT64260TWSIstart())!= -1) {
- status = GT64260TWSIwrite(I2cBusAddr | 0x01);
- }
- }
- }
- }
- }
- }
- break;
- default:
- status=-1;
- break;
- }
- if (status !=-1) {
-#ifdef I2C_DEBUG
- printk("\n");
-#endif
- /* read data from device */
- for ( ; numBytes > 0; numBytes-- ) {
- if ( numBytes == 1) lastByte=1;
- if (GT64260TWSIread(pBuff,lastByte) == -1) return (-1);
-#ifdef I2C_DEBUG
- printk("%2x ", *pBuff);
- if ( (numBytes % 20)==0 ) printk("\n");
-#endif
- pBuff++;
- }
-#ifdef I2C_DEBUG
- printk("\n");
-#endif
- if (GT64260TWSIstop() == -1) return (-1);
- }
- return (status);
-}
-
diff --git a/c/src/lib/libbsp/powerpc/mvme5500/Makefile.am b/c/src/lib/libbsp/powerpc/mvme5500/Makefile.am
index e2e57d8345..5d8d807613 100644
--- a/c/src/lib/libbsp/powerpc/mvme5500/Makefile.am
+++ b/c/src/lib/libbsp/powerpc/mvme5500/Makefile.am
@@ -47,12 +47,12 @@ librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/dev/rtc/rtc-support.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/powerpc/mvme5500/rtc/todcfg.c
# vectors
-librtemsbsp_a_SOURCES += vectors/exceptionhandler.c
+librtemsbsp_a_SOURCES += ../../../../../../bsps/powerpc/mvme5500/start/exceptionhandler.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/powerpc/shared/start/vectors_entry.S
# GT64260
-librtemsbsp_a_SOURCES += GT64260/GT64260TWSI.c
-librtemsbsp_a_SOURCES += GT64260/MVME5500I2C.c
+librtemsbsp_a_SOURCES += ../../../../../../bsps/powerpc/mvme5500/GT64260/GT64260TWSI.c
+librtemsbsp_a_SOURCES += ../../../../../../bsps/powerpc/mvme5500/GT64260/MVME5500I2C.c
if HAS_NETWORKING
librtemsbsp_a_SOURCES += ../../../../../../bsps/powerpc/mvme5500/net/if_100MHz/GT64260eth.c
diff --git a/c/src/lib/libbsp/powerpc/mvme5500/vectors/exceptionhandler.c b/c/src/lib/libbsp/powerpc/mvme5500/vectors/exceptionhandler.c
deleted file mode 100644
index be5f78f2d3..0000000000
--- a/c/src/lib/libbsp/powerpc/mvme5500/vectors/exceptionhandler.c
+++ /dev/null
@@ -1,221 +0,0 @@
-/*
- * Authorship
- * ----------
- * This software was created by
- * Till Straumann <strauman@slac.stanford.edu>, 5/2002,
- * Stanford Linear Accelerator Center, Stanford University.
- *
- * Acknowledgement of sponsorship
- * ------------------------------
- * This software was produced by
- * the Stanford Linear Accelerator Center, Stanford University,
- * under Contract DE-AC03-76SFO0515 with the Department of Energy.
- *
- * Government disclaimer of liability
- * ----------------------------------
- * Neither the United States nor the United States Department of Energy,
- * nor any of their employees, makes any warranty, express or implied, or
- * assumes any legal liability or responsibility for the accuracy,
- * completeness, or usefulness of any data, apparatus, product, or process
- * disclosed, or represents that its use would not infringe privately owned
- * rights.
- *
- * Stanford disclaimer of liability
- * --------------------------------
- * Stanford University makes no representations or warranties, express or
- * implied, nor assumes any liability for the use of this software.
- *
- * Stanford disclaimer of copyright
- * --------------------------------
- * Stanford University, owner of the copyright, hereby disclaims its
- * copyright and all other rights in this software. Hence, anyone may
- * freely use it for any purpose without restriction.
- *
- * Maintenance of notices
- * ----------------------
- * In the interest of clarity regarding the origin and status of this
- * SLAC software, this and all the preceding Stanford University notices
- * are to remain affixed to any copy or derivative of this software made
- * or distributed by the recipient and are to be affixed to any copy of
- * software made or distributed by the recipient that contains a copy or
- * derivative of this software.
- *
- * ------------------ SLAC Software Notices, Set 4 OTT.002a, 2004 FEB 03
- */
-/* Copyright :
- * (C) S. Kate Feng <feng1@bnl.gov> 4/2004 modified it for MVME5500
- */
-
-#include <bsp.h>
-#include <bsp/vectors.h>
-#include <bsp/bootcard.h>
-#include <libcpu/spr.h>
-#include <bsp/pci.h>
-#include <rtems/bspIo.h>
-#include <rtems/score/percpu.h>
-#include <threads.h>
-#include <inttypes.h>
-
-#include <bsp/bspException.h>
-
-#define SRR1_TEA_EXC (1<<(31-13))
-#define SRR1_MCP_EXC (1<<(31-12))
-
-static thread_local volatile BSP_ExceptionExtension BSP_exceptionExtension = 0;
-
-BSP_ExceptionExtension
-BSP_exceptionHandlerInstall(BSP_ExceptionExtension e)
-{
-volatile BSP_ExceptionExtension test;
- test = BSP_exceptionExtension;
- BSP_exceptionExtension = e;
- return test;
-}
-
-void
-BSP_exceptionHandler(BSP_Exception_frame* excPtr)
-{
-BSP_ExceptionExtension ext=0;
-rtems_id id=0;
-int recoverable = 0;
-char *fmt="Uhuuuh, Exception %d in unknown task???\n";
-int quiet=0;
-
- if (!quiet) printk("In BSP_exceptionHandler()\n");
- /* If we are in interrupt context, we are in trouble - skip the user
- * hook and panic
- */
- if (rtems_interrupt_is_in_progress()) {
- fmt="Aieeh, Exception %d in interrupt handler\n";
- } else if ( !_Thread_Executing) {
- fmt="Aieeh, Exception %d in initialization code\n";
- } else {
- /* retrieve the notepad which possibly holds an extention pointer */
- if (RTEMS_SUCCESSFUL==rtems_task_ident(RTEMS_SELF,RTEMS_LOCAL,&id)) {
- ext = BSP_exceptionExtension;
- if (ext)
- quiet=ext->quiet;
- if (!quiet) {
- printk("Task (Id 0x%08" PRIx32 ") got ",id);
- }
- fmt="exception %d\n";
- }
- }
-
- if (ext && ext->lowlevelHook && ext->lowlevelHook(excPtr,ext,0)) {
- /* they did all the work and want us to do nothing! */
- printk("they did all the work and want us to do nothing!\n");
- return;
- }
-
- if (!quiet) {
- /* message about exception */
- printk(fmt, excPtr->_EXC_number);
- /* register dump */
- printk("\t Next PC or Address of fault = %" PRIxPTR ", ", excPtr->EXC_SRR0);
- printk("Mvme5500 Saved MSR = %" PRIxPTR "\n", excPtr->EXC_SRR1);
- printk("\t R0 = %08" PRIxPTR, excPtr->GPR0);
- printk(" R1 = %08" PRIxPTR, excPtr->GPR1);
- printk(" R2 = %08" PRIxPTR, excPtr->GPR2);
- printk(" R3 = %08" PRIxPTR "\n", excPtr->GPR3);
- printk("\t R4 = %08" PRIxPTR, excPtr->GPR4);
- printk(" R5 = %08" PRIxPTR, excPtr->GPR5);
- printk(" R6 = %08" PRIxPTR, excPtr->GPR6);
- printk(" R7 = %08" PRIxPTR "\n", excPtr->GPR7);
- printk("\t R8 = %08" PRIxPTR, excPtr->GPR8);
- printk(" R9 = %08" PRIxPTR, excPtr->GPR9);
- printk(" R10 = %08" PRIxPTR, excPtr->GPR10);
- printk(" R11 = %08" PRIxPTR "\n", excPtr->GPR11);
- printk("\t R12 = %08" PRIxPTR, excPtr->GPR12);
- printk(" R13 = %08" PRIxPTR, excPtr->GPR13);
- printk(" R14 = %08" PRIxPTR, excPtr->GPR14);
- printk(" R15 = %08" PRIxPTR "\n", excPtr->GPR15);
- printk("\t R16 = %08" PRIxPTR, excPtr->GPR16);
- printk(" R17 = %08" PRIxPTR, excPtr->GPR17);
- printk(" R18 = %08" PRIxPTR, excPtr->GPR18);
- printk(" R19 = %08" PRIxPTR "\n", excPtr->GPR19);
- printk("\t R20 = %08" PRIxPTR, excPtr->GPR20);
- printk(" R21 = %08" PRIxPTR, excPtr->GPR21);
- printk(" R22 = %08" PRIxPTR, excPtr->GPR22);
- printk(" R23 = %08" PRIxPTR "\n", excPtr->GPR23);
- printk("\t R24 = %08" PRIxPTR, excPtr->GPR24);
- printk(" R25 = %08" PRIxPTR, excPtr->GPR25);
- printk(" R26 = %08" PRIxPTR, excPtr->GPR26);
- printk(" R27 = %08" PRIxPTR "\n", excPtr->GPR27);
- printk("\t R28 = %08" PRIxPTR, excPtr->GPR28);
- printk(" R29 = %08" PRIxPTR, excPtr->GPR29);
- printk(" R30 = %08" PRIxPTR, excPtr->GPR30);
- printk(" R31 = %08" PRIxPTR "\n", excPtr->GPR31);
- printk("\t CR = %08" PRIx32 "\n", excPtr->EXC_CR);
- printk("\t CTR = %08" PRIxPTR "\n", excPtr->EXC_CTR);
- printk("\t XER = %08" PRIx32 "\n", excPtr->EXC_XER);
- printk("\t LR = %08" PRIxPTR "\n", excPtr->EXC_LR);
-
- BSP_printStackTrace(excPtr);
- }
-
- if (ASM_MACH_VECTOR == excPtr->_EXC_number) {
- /* ollah , we got a machine check - this could either
- * be a TEA, MCP or internal; let's see and provide more info
- */
- if (!quiet)
- printk("Machine check; reason:");
- if ( ! (excPtr->EXC_SRR1 & (SRR1_TEA_EXC | SRR1_MCP_EXC)) ) {
- if (!quiet)
- printk("SRR1\n");
- } else {
- if (excPtr->EXC_SRR1 & (SRR1_TEA_EXC)) {
- if (!quiet)
- printk(" TEA");
- }
- if (excPtr->EXC_SRR1 & (SRR1_MCP_EXC)) {
- unsigned long gerr;
-
- if (!quiet) printk(" MCP\n");
-
- /* it's MCP; gather info from the host bridge */
- gerr=_BSP_clear_hostbridge_errors(0,0);
- if (gerr&0x80000000) printk("GT64260 Parity error\n");
- if (gerr&0x40000000) printk("GT64260 SysErr\n");
- if ((!quiet) && (!gerr)) printk("GT64260 host bridge seems OK\n");
- }
- }
- } else if (ASM_DEC_VECTOR == excPtr->_EXC_number) {
- recoverable = 1;
- } else if (ASM_SYS_VECTOR == excPtr->_EXC_number) {
-#ifdef TEST_RAW_EXCEPTION_CODE
- recoverable = 1;
-#else
- recoverable = 0;
-#endif
- }
-
- /* call them for a second time giving a chance to intercept
- * the task_suspend
- */
- if (ext && ext->lowlevelHook && ext->lowlevelHook(excPtr, ext, 1))
- return;
-
- if (!recoverable) {
- if (id) {
- /* if there's a highlevel hook, install it */
- if (ext && ext->highlevelHook) {
- excPtr->EXC_SRR0 = (uint32_t)ext->highlevelHook;
- excPtr->GPR3 = (uint32_t)ext;
- return;
- }
- if (excPtr->EXC_SRR1 & MSR_FP) {
- /* thread dispatching is _not_ disabled at this point; hence
- * we must make sure we have the FPU enabled...
- */
- _write_MSR( _read_MSR() | MSR_FP );
- __asm__ __volatile__("isync");
- }
- printk("unrecoverable exception!!! task %08" PRIx32 " suspended\n",id);
- rtems_task_suspend(id);
- } else {
- printk("PANIC, rebooting...\n");
- bsp_reset();
- }
- }
-}