Hello everyone,
I am encountering difficulties with initializing I2C on the RTEMS6 MVME3100
BSP, required to run EPICS test. I have made adaptations based on Heinz's patch
for RTEMS5, but I am experiencing an error. Here is the specific error message
alongside an attached file showing the modifications made.
Welcome to rtems-6.0.0 (PowerPC/Generic (no FPU)/mvme3100)
BSP: mvme3100, CVS Release ($Name$)
CPU 0x8020 - rev 0x20
Additional boot options are
Initial system stack at 41cb0
Going to start PCI buses scanning and initialization
Board Type: MVME3100-1152 (S/N E1726C0)
External (=PCI Bus) Clock Freq : 66666666 Hz
Core Complex Bus (CCB) Clock Freq: 333333330 Hz
CPU Clock Freq: 133333332 Hz
Ethernet 0 EC:9E:CD:19:B3:53
Ethernet 1 EC:9E:CD:19:B3:54
Ethernet 2 EC:9E:CD:19:B3:55
Number of PCI buses found is : 2
BUS:SLOT:FUN VENDOR-DEV_ID: COMMAND STATUS BASE_ADDR0 BASE_ADDR1 IRQ_PIN ->
IRQ_LINE
0:0x00:0 0x1057-0x0008: 0x0006 0x20b0 0x80000000 0x00000000 0 ->
0 (=0x00)
0:0x11:0 0x10e3-0x0148: 0x0146 0x02b0 0x80100004 0x00000000 1 ->
0 (=0x00)
0:0x12:0 0x10b5-0x6520: 0x0147 0x02b0 0x00000000 0x00000000 0 ->
0 (=0x00)
0:0x14:0 0x1095-0x3124: 0x01c7 0x02b0 0x80300004 0x00000000 1 ->
2 (=0x02)
Memory: 268435456 bytes
Cleared PCI errors: pci_stat was 0x20b0
OpenPIC Version 1.2 (1 CPUs and 56 IRQ sources) at 0x3775135744
OpenPIC Vendor 0 (Unknown), Device 0 (Unknown), Stepping 0
OpenPIC timer frequency is not set
MSR is 0x00001000, TCR 0x04000000
-----------------------------------------
Exit from bspstart
Tundra Tsi148 PCI-VME bridge detected at 0x80100000, IRQ 0
Tsi148 Outbound Ports:
Port VME-Addr Size PCI-Adrs Mode:
0: 0x20000000 0x0e000000 0xc0000000 A32, SUP, D32, SCT
1: 0x00000000 0x00ff0000 0xcf000000 A24, SUP, D32, SCT
2: 0x00000000 0x00010000 0xcfff0000 A16, SUP, D32, SCT
7: 0x00000000 0x01000000 0xce000000 CSR, SUP, D32, SCT
Tsi148 Inbound Ports:
Port VME-Addr Size PCI-Adrs Mode:
0: 0xc0000000 0x10000000 0x00000000 A32, PGM, DAT, SUP, USR, MBLT, BLT
vmeTsi148 IRQ manager: looking for registers on VME...
Trying to find CSR on VME...
vmeTsi148 - IRQ manager using VME CSR to flush FIFO
-------- call BSP_i2c_initialize() with _IO_All_drivers_initialized = true
assumes that major 0 is assigned to i2c ---------
now trying to i2c intialized
libi2c: Claiming driver slot failed (rtems status code 10)
Initializing I2C library failed
now i2c intialized 2
*** BEGIN OF TEST HELLO WORLD ***
*** TEST VERSION: 6.0.0.b2967081e5daa673141d714a2e53280898dce566
*** TEST STATE: EXPECTED_PASS
*** TEST BUILD: RTEMS_POSIX_API
*** TEST TOOLS: 12.2.1 20230425 (RTEMS 6, RSB
3c8c2ce38a8fe0a622f88fb3422d1f8fa609609b, Newlib 9ae9eef)
Hello World
*** END OF TEST HELLO WORLD ***
fatal source: RTEMS_FATAL_SOURCE_EXIT
exception vector 1 (0x1)
next PC or address of fault = 0x902d8100
saved MSR = 0x908d80f4
context = task, ISR nest level = 0
thread dispatch disable level = 0
R0 = 0x9081003c R1 = 0x38800003 R2 = 0x48014e50 R3 = 0x9421ff50
R4 = 0x9081003c R5 = 0x38800004 R6 = 0x48014e40 R7 = 0x902d8104
R8 = 0x908d80f8 R9 = 0x38808005 R10 = 0x48014e2c R11 = 0x9421ff50
R12 = 0x9081003c R13 = 0x38800006 R14 = 0x48014e20 R15 = 0x9421ff50
R16 = 0x9081003c R17 = 0x38800007 R18 = 0x48014e10 R19 = 0x9421ff50
R20 = 0x9081003c R21 = 0x38800008 R22 = 0x48014e00 R23 = 0x9421ff50
R24 = 0x9081003c R25 = 0x3880000c R26 = 0x48014df0 R27 = 0x9421ff50
R28 = 0x9081003c R29 = 0x38800018 R30 = 0x48014de0 R31 = 0x902d8104
CR = 0x9421ff50
CTR = 0x38800002
XER = 0x9081003c
LR = 0x48015578
DEAR = 0x00000000
ESR = 0x02000000
MCSR = 0x00000000
executing thread ID = 0x0a010001, name = UI1
Best Regards,
Zainab Olalekan
diff --git a/bsps/powerpc/mvme3100/start/bspstart.c
b/bsps/powerpc/mvme3100/start/bspstart.c
index f27304c144..4df6f5326a 100644
--- a/bsps/powerpc/mvme3100/start/bspstart.c
+++ b/bsps/powerpc/mvme3100/start/bspstart.c
@@ -52,6 +52,8 @@
extern unsigned long __rtems_end[];
extern unsigned ppc_exc_lock_std, ppc_exc_gpr3_std;
+extern bool _IO_All_drivers_initialized;
+
/*
* Copy Additional boot param passed by boot loader
*/
@@ -249,7 +251,7 @@ VpdBufRec vpdData [] = {
printk("CPU 0x%x - rev 0x%x\n", myCpu, myCpuRevision);
#ifdef SHOW_MORE_INIT_SETTINGS
- printk("Additionnal boot options are %s\n", BSP_commandline_string);
+ printk("Additional boot options are %s\n", BSP_commandline_string);
printk("Initial system stack at %" PRIxPTR "\n", (uintptr_t) stack);
#endif
@@ -431,7 +433,15 @@ void bsp_start( void )
static void mvme3100_i2c_initialize(void)
{
+
+ printk("-------- call BSP_i2c_initialize() with _IO_All_drivers_initialized
= true\n");
+ printk("assumes that major 0 is assigned to i2c ---------\n");
+
+ printk("now trying to i2c intialized\n");
+ _IO_All_drivers_initialized = true;
BSP_i2c_initialize();
+ _IO_All_drivers_initialized = false;
+ printk("now i2c intialized 2\n");
}
RTEMS_SYSINIT_ITEM(
diff --git a/bsps/shared/dev/rtc/ds1375.c b/bsps/shared/dev/rtc/ds1375.c
index e51744355f..dbb599ae19 100644
--- a/bsps/shared/dev/rtc/ds1375.c
+++ b/bsps/shared/dev/rtc/ds1375.c
@@ -434,7 +434,6 @@ bool rtc_ds1375_device_probe(
)
{
int fd;
-
if ( ( fd = getfd( minor ) ) < 0 ) {
STDIOSAFE( "ds1375_probe (open): %s\n", strerror( errno ) );
return false;
diff --git a/cpukit/sapi/src/io.c b/cpukit/sapi/src/io.c
index 3a3780610e..527d9c082b 100644
--- a/cpukit/sapi/src/io.c
+++ b/cpukit/sapi/src/io.c
@@ -50,6 +50,9 @@ void _IO_Initialize_all_drivers( void )
_IO_All_drivers_initialized = true;
- for ( major=0 ; major < _IO_Number_of_drivers ; major ++ )
+ //for ( major=0 ; major < _IO_Number_of_drivers ; major ++ )
+
+ //printk(" _IO_Initialize_all_drivers starts from major=1 !!!\n");
+ for ( major=1 ; major < _IO_Number_of_drivers ; major ++ )
(void) rtems_io_initialize( major, 0, NULL );
}
diff --git a/spec/build/bsps/powerpc/mvme3100/bspmvme3100.yml
b/spec/build/bsps/powerpc/mvme3100/bspmvme3100.yml
index 1667c1617a..dc04e4dd36 100644
--- a/spec/build/bsps/powerpc/mvme3100/bspmvme3100.yml
+++ b/spec/build/bsps/powerpc/mvme3100/bspmvme3100.yml
@@ -64,6 +64,7 @@ source:
- bsps/powerpc/mvme3100/pci/detect_host_bridge.c
- bsps/powerpc/mvme3100/rtc/todcfg.c
- bsps/powerpc/mvme3100/start/bspstart.c
+- bsps/powerpc/mvme3100/start/bspclean.c
- bsps/powerpc/mvme3100/start/misc.c
- bsps/powerpc/shared/btimer/btimer-ppc-dec.c
- bsps/powerpc/shared/cache/cache.c
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