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-rw-r--r--main/common/start.c458
1 files changed, 237 insertions, 221 deletions
diff --git a/main/common/start.c b/main/common/start.c
index 18919a2..4f2f3a0 100644
--- a/main/common/start.c
+++ b/main/common/start.c
@@ -1,7 +1,7 @@
/**************************************************************************
*
* Copyright (c) 2013 Alcatel-Lucent
- *
+ *
* Alcatel Lucent licenses this file to You under the Apache License,
* Version 2.0 (the "License"); you may not use this file except in
* compliance with the License. A copy of the License is contained the
@@ -22,7 +22,7 @@
*
* This is typically the first 'C' code executed by the processor after a
* reset.
- *
+ *
* Original author: Ed Sutter (ed.sutter@alcatel-lucent.com)
*
*/
@@ -49,42 +49,42 @@ extern void PRE_COMMANDLOOP_HOOK();
#define EXCEPTION_HEADING "EXCEPTION"
#endif
-extern void vinit(void);
-extern int addcommand(struct monCommand *cmdlist, char *cmdlvl);
+extern void vinit(void);
+extern int addcommand(struct monCommand *cmdlist, char *cmdlvl);
/* StateOfMonitor:
* The StateOfMonitor variable is used throughout the code to determine
- * how the monitor started up. In general, the three most common
+ * how the monitor started up. In general, the three most common
* startup types are: INITIALIZE, APP_EXIT and EXCEPTION.
*/
-int StateOfMonitor;
+int StateOfMonitor;
/* MonStack:
* The monitor's stack is declared within the monitor's own .bss space.
* This keeps the memory map simple, the only thing that needs to be
* accounted for is that in the bss init loop, this section should not
- * be initialized. MONSTACKSIZE must be defined in config.h.
+ * be initialized. MONSTACKSIZE must be defined in config.h.
*/
-ulong MonStack[MONSTACKSIZE/4];
+ulong MonStack[MONSTACKSIZE/4];
/* APPLICATION_RAMSTART:
* Loaded with the address after which the application can be loaded.
*/
-ulong APPLICATION_RAMSTART;
+ulong APPLICATION_RAMSTART;
/* BOOTROM_BASE:
* Loaded with the address considered to be the base address at which
* the monitor is burned into flash.
*/
-ulong BOOTROM_BASE;
+ulong BOOTROM_BASE;
/* LoopsPerMillisecond:
* Loaded with a count (established in config.h) that is an estimation of
* one second of elapsed time. It is NOT an accurate value, but serves the
- * purpose of providing a hardware-independent mechanism for establishing
+ * purpose of providing a hardware-independent mechanism for establishing
* a reasonable estimation of one second's worth of elapsed time.
*/
-ulong LoopsPerMillisecond;
+ulong LoopsPerMillisecond;
/* init0():
* The code in this function was originally part of start(). It has been
@@ -96,33 +96,33 @@ init0(void)
{
/* Store the base address of memory that is used by application.
* Start it off on the next 4K boundary after the end of monitor ram.
- * Usually APPRAMBASE and BOOTROMBASE can be retrieved from bss_end and
- * boot_base; but they can be overridden with values specified in the
- * target-specific config.h file.
- */
+ * Usually APPRAMBASE and BOOTROMBASE can be retrieved from bss_end and
+ * boot_base; but they can be overridden with values specified in the
+ * target-specific config.h file.
+ */
#ifdef APPRAMBASE_OVERRIDE
- APPLICATION_RAMSTART = APPRAMBASE_OVERRIDE;
+ APPLICATION_RAMSTART = APPRAMBASE_OVERRIDE;
#else
- APPLICATION_RAMSTART = (((ulong)&bss_end) | 0xfff) + 1;
+ APPLICATION_RAMSTART = (((ulong)&bss_end) | 0xfff) + 1;
#endif
#ifdef BOOTROMBASE_OVERRIDE
- BOOTROM_BASE = BOOTROMBASE_OVERRIDE;
+ BOOTROM_BASE = BOOTROMBASE_OVERRIDE;
#else
- BOOTROM_BASE = (ulong)&boot_base;
+ BOOTROM_BASE = (ulong)&boot_base;
#endif
- /* Load bottom of stack with 0xdeaddead to be used by stkchk().
- */
- MonStack[0] = 0xdeaddead;
+ /* Load bottom of stack with 0xdeaddead to be used by stkchk().
+ */
+ MonStack[0] = 0xdeaddead;
- /* Set up default loops-per-millisecond count.
- */
- LoopsPerMillisecond = LOOPS_PER_SECOND/1000;
+ /* Set up default loops-per-millisecond count.
+ */
+ LoopsPerMillisecond = LOOPS_PER_SECOND/1000;
- /* Clear any user-installed command list.
- */
- addcommand(0,0);
+ /* Clear any user-installed command list.
+ */
+ addcommand(0,0);
}
/* init1():
@@ -132,17 +132,18 @@ init0(void)
void
init1(void)
{
- initCPUio(); /* Configure all chip-selects, parallel IO
- * direction registers, etc... This may have
- * been done already in reset.s
- */
- vinit(); /* Initialize the CPU's vector table. */
- InitRemoteIO(); /* Initialize all application-settable IO functions */
-
- if (ConsoleBaudRate == 0)
- ConsoleBaudRate = DEFAULT_BAUD_RATE;
+ initCPUio(); /* Configure all chip-selects, parallel IO
+ * direction registers, etc... This may have
+ * been done already in reset.s
+ */
+ vinit(); /* Initialize the CPU's vector table. */
+ InitRemoteIO(); /* Initialize all application-settable IO functions */
+
+ if(ConsoleBaudRate == 0) {
+ ConsoleBaudRate = DEFAULT_BAUD_RATE;
+ }
- devInit(ConsoleBaudRate);
+ devInit(ConsoleBaudRate);
}
@@ -152,19 +153,21 @@ void
init2(void)
{
#if INCLUDE_FLASH | INCLUDE_TFS
- int rc = 0;
+ int rc = 0;
#endif
#if INCLUDE_FBI
- if (StateOfMonitor == INITIALIZE)
- fbdev_init(); /* Initialize the frame-buffer device */
+ if(StateOfMonitor == INITIALIZE) {
+ fbdev_init(); /* Initialize the frame-buffer device */
+ }
#endif
#if INCLUDE_FLASH
- if (StateOfMonitor == INITIALIZE)
- rc = FlashInit(); /* Init flashop data structures and (possibly) */
- /* the relocatable functions. This MUST be */
-#endif /* done prior to turning on cache!!! */
+ if(StateOfMonitor == INITIALIZE) {
+ rc = FlashInit(); /* Init flashop data structures and (possibly) */
+ }
+ /* the relocatable functions. This MUST be */
+#endif /* done prior to turning on cache!!! */
cacheInit(); /* Initialize cache. */
@@ -173,32 +176,33 @@ init2(void)
#endif
#if INCLUDE_TFS
- if (rc != -1) /* Start up TFS as long as flash */
- tfsstartup(); /* initialization didn't fail. */
+ if(rc != -1) { /* Start up TFS as long as flash */
+ tfsstartup(); /* initialization didn't fail. */
+ }
#endif
}
/* init3():
- * As each target boots up, it calls init1() and init2() to do multiple
- * phases of hardware initialization. This third initialization phase
- * is always common to all targets...
+ * As each target boots up, it calls init1() and init2() to do multiple
+ * phases of hardware initialization. This third initialization phase
+ * is always common to all targets...
* It is possible that this is being called by AppWarmStart(). In this
- * case, the user can specify which portions of the monitor code are
- * to be initialized by specifying them in the startmode mask.
+ * case, the user can specify which portions of the monitor code are
+ * to be initialized by specifying them in the startmode mask.
*/
static void
_init3(ulong startmode)
{
- char *baud;
+ char *baud;
#if INCLUDE_LINEEDIT
- /* Initialize command line history table. */
- historyinit();
+ /* Initialize command line history table. */
+ historyinit();
#endif
#if INCLUDE_SHELLVARS
- /* Init shell variable table. */
- ShellVarInit();
+ /* Init shell variable table. */
+ ShellVarInit();
#endif
#if INCLUDE_USRLVL
@@ -207,91 +211,98 @@ _init3(ulong startmode)
#endif
#if INCLUDE_BOARDINFO
- /* Check for board-specific-information in some otherwise unused
- * sector. Also, establish shell variables from this information
- * based on the content of the boardinfo structure.
- * Note that the second half of the board-specific information setup
- * (the call to BoardInfoEnvInit()) must be done AFTER ShellVarInit()
- * because shell variables are established here.
- */
- if (startmode & WARMSTART_BOARDINFO) {
- BoardInfoInit();
- BoardInfoEnvInit();
- }
+ /* Check for board-specific-information in some otherwise unused
+ * sector. Also, establish shell variables from this information
+ * based on the content of the boardinfo structure.
+ * Note that the second half of the board-specific information setup
+ * (the call to BoardInfoEnvInit()) must be done AFTER ShellVarInit()
+ * because shell variables are established here.
+ */
+ if(startmode & WARMSTART_BOARDINFO) {
+ BoardInfoInit();
+ BoardInfoEnvInit();
+ }
#endif
#ifdef MONCOMPTR
- /* If MONCOMPTR is defined, then verify that the definition matches
- * the location of the actual moncomptr value. The definition in
- * config.h is provided so that outside applications can include that
- * header file so that the value passed into monConnect() is defined
- * formally. The REAL value of moncomptr is based on the location of
- * the pointer in monitor memory space, determined only after the final
- * link has been done. As a result, this check is used to simply verify
- * that the definition matches the actual value.
- */
- {
- if (MONCOMPTR != (ulong)&moncomptr)
- printf("\nMONCOMPTR WARNING: runtime != definition\n");
- }
+ /* If MONCOMPTR is defined, then verify that the definition matches
+ * the location of the actual moncomptr value. The definition in
+ * config.h is provided so that outside applications can include that
+ * header file so that the value passed into monConnect() is defined
+ * formally. The REAL value of moncomptr is based on the location of
+ * the pointer in monitor memory space, determined only after the final
+ * link has been done. As a result, this check is used to simply verify
+ * that the definition matches the actual value.
+ */
+ {
+ if(MONCOMPTR != (ulong)&moncomptr) {
+ printf("\nMONCOMPTR WARNING: runtime != definition\n");
+ }
+ }
#endif
#if INCLUDE_TFS
- /* After basic initialization, if the monitor's run-control file
- * exists, run it prior to EthernetStartup() so that the
- * MAC/IP addresses can be configured based on shell variables
- * that would be loaded by the rc file.
- */
- if (startmode & WARMSTART_RUNMONRC)
- tfsrunrcfile();
+ /* After basic initialization, if the monitor's run-control file
+ * exists, run it prior to EthernetStartup() so that the
+ * MAC/IP addresses can be configured based on shell variables
+ * that would be loaded by the rc file.
+ */
+ if(startmode & WARMSTART_RUNMONRC) {
+ tfsrunrcfile();
+ }
#endif
- /* After MONRC is run, establish monitor flags...
- */
- InitMonitorFlags();
-
- /* We've run the monrc file at this point, so check for the
- * presence of the CONSOLEBAUD shell variable. If it's set,
- * then use the value to re-establish the console baud rate.
- * If it isn't set, then establish the CONSOLEBAUD shell variable
- * using the default, pre-configured baud rate.
- */
- baud = getenv("CONSOLEBAUD");
- if (baud)
- ChangeConsoleBaudrate(atoi(baud));
- ConsoleBaudEnvSet();
+ /* After MONRC is run, establish monitor flags...
+ */
+ InitMonitorFlags();
+
+ /* We've run the monrc file at this point, so check for the
+ * presence of the CONSOLEBAUD shell variable. If it's set,
+ * then use the value to re-establish the console baud rate.
+ * If it isn't set, then establish the CONSOLEBAUD shell variable
+ * using the default, pre-configured baud rate.
+ */
+ baud = getenv("CONSOLEBAUD");
+ if(baud) {
+ ChangeConsoleBaudrate(atoi(baud));
+ }
+ ConsoleBaudEnvSet();
#if INCLUDE_ETHERNET
#if INCLUDE_STOREMAC
- storeMac(0);
+ storeMac(0);
#endif
- if (startmode & WARMSTART_IOINIT)
- EthernetStartup(0,1);
+ if(startmode & WARMSTART_IOINIT) {
+ EthernetStartup(0,1);
+ }
#endif
- /* Now that all has been initialized, display the monitor header. */
+ /* Now that all has been initialized, display the monitor header. */
#ifndef NO_UMON_STARTUP_HDR
- if (startmode & WARMSTART_MONHEADER) {
- if (!MFLAGS_NOMONHEADER())
- monHeader(1);
- }
+ if(startmode & WARMSTART_MONHEADER) {
+ if(!MFLAGS_NOMONHEADER()) {
+ monHeader(1);
+ }
+ }
#endif
#if INCLUDE_FBI
- if (StateOfMonitor == INITIALIZE)
- fbi_splash();
+ if(StateOfMonitor == INITIALIZE) {
+ fbi_splash();
+ }
#endif
#if INCLUDE_TFS
- if (startmode & WARMSTART_TFSAUTOBOOT)
- tfsrunboot();
+ if(startmode & WARMSTART_TFSAUTOBOOT) {
+ tfsrunboot();
+ }
#endif
}
void
init3(void)
{
- _init3(WARMSTART_ALL);
+ _init3(WARMSTART_ALL);
}
/* umonBssInit():
@@ -305,17 +316,19 @@ init3(void)
void
umonBssInit(void)
{
- int *tmp;
- volatile ulong *bssptr;
-
- tmp = &bss_start;
- bssptr = (ulong *)tmp;
- while(bssptr < MonStack)
- *bssptr++ = 0;
- bssptr = (ulong *)MonStack+(MONSTACKSIZE/4);
- tmp = &bss_end;
- while(bssptr < (ulong *)tmp)
- *bssptr++ = 0;
+ int *tmp;
+ volatile ulong *bssptr;
+
+ tmp = &bss_start;
+ bssptr = (ulong *)tmp;
+ while(bssptr < MonStack) {
+ *bssptr++ = 0;
+ }
+ bssptr = (ulong *)MonStack+(MONSTACKSIZE/4);
+ tmp = &bss_end;
+ while(bssptr < (ulong *)tmp) {
+ *bssptr++ = 0;
+ }
}
/* AppWarmStart():
@@ -333,34 +346,36 @@ umonBssInit(void)
void
AppWarmStart(ulong mask)
{
- /* First initialize monitor bss space (skipping over MonStack[]): */
- if (mask & WARMSTART_BSSINIT)
- umonBssInit();
-
- StateOfMonitor = INITIALIZE;
-
- /* Initialize some of the real fundamental stuff regardless of
- * the incoming mask.
- */
- init0();
-
- /* Subset of init1(): */
- if (mask & WARMSTART_IOINIT) {
- initCPUio();
- InitRemoteIO();
- if (ConsoleBaudRate == 0)
- ConsoleBaudRate = DEFAULT_BAUD_RATE;
- devInit(ConsoleBaudRate);
- }
- init2();
- _init3(mask);
+ /* First initialize monitor bss space (skipping over MonStack[]): */
+ if(mask & WARMSTART_BSSINIT) {
+ umonBssInit();
+ }
+
+ StateOfMonitor = INITIALIZE;
+
+ /* Initialize some of the real fundamental stuff regardless of
+ * the incoming mask.
+ */
+ init0();
+
+ /* Subset of init1(): */
+ if(mask & WARMSTART_IOINIT) {
+ initCPUio();
+ InitRemoteIO();
+ if(ConsoleBaudRate == 0) {
+ ConsoleBaudRate = DEFAULT_BAUD_RATE;
+ }
+ devInit(ConsoleBaudRate);
+ }
+ init2();
+ _init3(mask);
}
/* start():
* Called at the end of reset.s as the first C function after processor
* bootup. It is passed a state that is used to determine whether or not
* the CPU is restarting as a result of a warmstart or a coldstart. If
- * the restart is a coldstart, then state will be INITIALIZE. if the
+ * the restart is a coldstart, then state will be INITIALIZE. if the
* restart is a warmstart, then there are a few typical values of state,
* the most common of which are APP_EXIT and EXCEPTION.
*
@@ -381,92 +396,93 @@ start(int state)
char buf[48];
#ifdef FORCE_BSS_INIT
- state = INITIALIZE;
+ state = INITIALIZE;
#endif
- /* Based on the incoming value of 'state' we may or may not initialize
- * monitor-owned ram. Ideally, we only want to initialize
- * monitor-owned ram when 'state' is INITIALIZE (power-up or reset);
- * however, to support the case where the incoming state variable may
- * be corrupted, we also initialize monitor-owned ram when 'state'
- * is anything unexpected...
- */
- switch(state) {
- case EXCEPTION:
- case APP_EXIT:
- break;
- case INITIALIZE:
- default:
- umonBssInit();
- break;
- }
-
- /* Now that the BSS clear loop has been done, we can copy the
- * value of state (either a register or on stack) to the global
- * variable (in BSS) StateOfMonitor...
- */
- StateOfMonitor = state;
-
- /* Step through different phases of startup...
- */
- init0();
- init1();
- init2();
-
- /* Depending on the type of startup, alert the console and do
- * further initialization as needed...
- */
+ /* Based on the incoming value of 'state' we may or may not initialize
+ * monitor-owned ram. Ideally, we only want to initialize
+ * monitor-owned ram when 'state' is INITIALIZE (power-up or reset);
+ * however, to support the case where the incoming state variable may
+ * be corrupted, we also initialize monitor-owned ram when 'state'
+ * is anything unexpected...
+ */
+ switch(state) {
+ case EXCEPTION:
+ case APP_EXIT:
+ break;
+ case INITIALIZE:
+ default:
+ umonBssInit();
+ break;
+ }
+
+ /* Now that the BSS clear loop has been done, we can copy the
+ * value of state (either a register or on stack) to the global
+ * variable (in BSS) StateOfMonitor...
+ */
+ StateOfMonitor = state;
+
+ /* Step through different phases of startup...
+ */
+ init0();
+ init1();
+ init2();
+
+ /* Depending on the type of startup, alert the console and do
+ * further initialization as needed...
+ */
switch(StateOfMonitor) {
- case INITIALIZE:
- reginit();
- init3();
- break;
- case APP_EXIT:
- EthernetStartup(0,0);
- if (!MFLAGS_NOEXITSTATUS()) {
- printf("\nApplication Exit Status: %d (0x%x)\n",
- AppExitStatus,AppExitStatus);
- }
- break;
- case EXCEPTION:
- EthernetStartup(0,0);
- printf("\n%s: '%s'\n",EXCEPTION_HEADING,
- ExceptionType2String(ExceptionType));
- printf(" Occurred near 0x%lx",ExceptionAddr);
- if (AddrToSym(-1,ExceptionAddr,buf,0))
- printf(" (within %s)",buf);
- printf("\n\n");
- exceptionAutoRestart(INITIALIZE);
- break;
- default:
- printf("Unexpected monitor state: 0x%x (sp @ 0x%x)\n",
- StateOfMonitor, buf);
- /* To attempt to recover from the bad state, just do
- * what INITIALIZE would do...
- */
- reginit();
- init3();
- break;
+ case INITIALIZE:
+ reginit();
+ init3();
+ break;
+ case APP_EXIT:
+ EthernetStartup(0,0);
+ if(!MFLAGS_NOEXITSTATUS()) {
+ printf("\nApplication Exit Status: %d (0x%x)\n",
+ AppExitStatus,AppExitStatus);
+ }
+ break;
+ case EXCEPTION:
+ EthernetStartup(0,0);
+ printf("\n%s: '%s'\n",EXCEPTION_HEADING,
+ ExceptionType2String(ExceptionType));
+ printf(" Occurred near 0x%lx",ExceptionAddr);
+ if(AddrToSym(-1,ExceptionAddr,buf,0)) {
+ printf(" (within %s)",buf);
+ }
+ printf("\n\n");
+ exceptionAutoRestart(INITIALIZE);
+ break;
+ default:
+ printf("Unexpected monitor state: 0x%x (sp @ 0x%x)\n",
+ StateOfMonitor, buf);
+ /* To attempt to recover from the bad state, just do
+ * what INITIALIZE would do...
+ */
+ reginit();
+ init3();
+ break;
}
#ifdef LOCK_FLASH_PROTECT_RANGE
- /* Issue the command that will cause the range of sectors
- * designated by FLASH_PROTECT_RANGE to be locked. This only
- * works if the flash device is capable of being locked.
- */
- sprintf(buf,"flash lock %s",FLASH_PROTECT_RANGE);
- docommand(buf,0);
+ /* Issue the command that will cause the range of sectors
+ * designated by FLASH_PROTECT_RANGE to be locked. This only
+ * works if the flash device is capable of being locked.
+ */
+ sprintf(buf,"flash lock %s",FLASH_PROTECT_RANGE);
+ docommand(buf,0);
#endif
#ifdef PRE_COMMANDLOOP_HOOK
- PRE_COMMANDLOOP_HOOK();
+ PRE_COMMANDLOOP_HOOK();
#endif
/* Enter the endless loop of command processing: */
CommandLoop();
- printf("ERROR: CommandLoop() returned\n");
- monrestart(INITIALIZE);
+ printf("ERROR: CommandLoop() returned\n");
+ monrestart(INITIALIZE);
}
/* __eabi():
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-04 22:40:06 +0000