Changeset 7ee59313 in rtems for bsps/mips/rbtx4938

Timestamp:

06/01/18 05:11:12 (5 years ago)

Author:

Sebastian Huber <sebastian.huber@…>

Branches:

5, master

Children:

196ce18

Parents:

718a84af

git-author:

Sebastian Huber <sebastian.huber@…> (06/01/18 05:11:12)

git-committer:

Sebastian Huber <sebastian.huber@…> (06/27/18 06:58:16)

Message:

Remove Clock_driver_support_shutdown_hardware()

The aim of this clock driver hook was to stop clock tick interrupts at
some late point in the exit() procedure.

The use of atexit() pulls in malloc() which pulls in errno. It is
incompatible with the intention of the
CONFIGURE_DISABLE_NEWLIB_REENTRANCY configuration option.

The exit() function must be called from thread context, so accompanied
clock tick interrupts should cause no harm. On the contrary, someone
may assume a normal operating system operation, e.g. working timeouts.

Remove the Clock_driver_support_shutdown_hardware() clock driver hook.

Close #3436.

File:

• bsps/mips/rbtx4938/clock/clockdrv.c (modified) (1 diff)

bsps/mips/rbtx4938/clock/clockdrv.c

@@ -101 +101 @@
 
 
-
-#define Clock_driver_support_shutdown_hardware() \
-  do { \
-        uint32_t temp; \
-    temp = TX4938_REG_READ( TX4938_REG_BASE, TX4938_TIMER0_BASE + TX4938_TIMER_ITMR ); /* Disable interval timer interrupt */ \
-    temp &= ~TIMER_INT_ENABLE_MASK; \
-    TX4938_REG_WRITE( TX4938_REG_BASE, TX4938_TIMER0_BASE + TX4938_TIMER_ITMR, temp ); \
-    temp = TX4938_REG_READ( TX4938_REG_BASE, TX4938_TIMER0_BASE + TX4938_TIMER_PGMR ); /* Disable pulse generator interrupt */ \
-    temp &= ~(TPIAE | TPIBE); \
-    TX4938_REG_WRITE( TX4938_REG_BASE, TX4938_TIMER0_BASE + TX4938_TIMER_PGMR, temp ); \
-    TX4938_REG_WRITE( TX4938_REG_BASE, TX4938_TIMER0_BASE + TX4938_TIMER_TCR, 0x0 ); /* Disable timer */ \
-  } while(0)
-
-
 #define CLOCK_DRIVER_USE_DUMMY_TIMECOUNTER