forked from Imagelibrary/rtems
002c6067ba
Mark bsp_reset() as no-return. Use default BSP fatal handler in lm32 and m68k BSPs. Remove empty bsp_reset() implementation. Update #5067.
137 lines
3.5 KiB
C
137 lines
3.5 KiB
C
/* Miscellaneous small BSP routines; reboot, board CSR, ... */
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/*
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* Authorship
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* ----------
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* This software ('mvme3100' RTEMS BSP) was created by
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*
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* Till Straumann <strauman@slac.stanford.edu>, 2005-2007,
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* Stanford Linear Accelerator Center, Stanford University.
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*
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* Acknowledgement of sponsorship
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* ------------------------------
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* The 'mvme3100' BSP was produced by
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* the Stanford Linear Accelerator Center, Stanford University,
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* under Contract DE-AC03-76SFO0515 with the Department of Energy.
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*
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* Government disclaimer of liability
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* ----------------------------------
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* Neither the United States nor the United States Department of Energy,
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* nor any of their employees, makes any warranty, express or implied, or
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* assumes any legal liability or responsibility for the accuracy,
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* completeness, or usefulness of any data, apparatus, product, or process
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* disclosed, or represents that its use would not infringe privately owned
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* rights.
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*
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* Stanford disclaimer of liability
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* --------------------------------
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* Stanford University makes no representations or warranties, express or
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* implied, nor assumes any liability for the use of this software.
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*
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* Stanford disclaimer of copyright
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* --------------------------------
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* Stanford University, owner of the copyright, hereby disclaims its
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* copyright and all other rights in this software. Hence, anyone may
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* freely use it for any purpose without restriction.
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*
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* Maintenance of notices
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* ----------------------
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* In the interest of clarity regarding the origin and status of this
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* SLAC software, this and all the preceding Stanford University notices
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* are to remain affixed to any copy or derivative of this software made
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* or distributed by the recipient and are to be affixed to any copy of
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* software made or distributed by the recipient that contains a copy or
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* derivative of this software.
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*
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* ------------------ SLAC Software Notices, Set 4 OTT.002a, 2004 FEB 03
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*/
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#include <bsp.h>
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#include <bsp/bootcard.h>
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void bsp_reset( rtems_fatal_source source, rtems_fatal_code code )
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{
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uint8_t v;
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(void) source;
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(void) code;
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/*
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* AFAIK, the hardest reset available; cleared
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* some errors a VME-bus reset wouldn't (hung
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* i2c bus)...
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*/
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v = in_8( BSP_MVME3100_SYS_CR );
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v &= ~BSP_MVME3100_SYS_CR_RESET_MSK;
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v |= BSP_MVME3100_SYS_CR_RESET;
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out_8( BSP_MVME3100_SYS_CR, v );
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RTEMS_UNREACHABLE();
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}
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uint8_t
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BSP_setSysReg(volatile uint8_t *r, uint8_t mask)
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{
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uint8_t v;
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rtems_interrupt_level l;
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if ( !mask )
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return in_8( r );
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rtems_interrupt_disable(l);
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v = in_8( r );
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if ( mask ) {
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out_8( r, v | mask );
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}
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rtems_interrupt_enable(l);
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return v;
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}
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uint8_t
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BSP_clrSysReg(volatile uint8_t *r, uint8_t mask)
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{
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uint8_t v;
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rtems_interrupt_level l;
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if ( !mask )
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return in_8( r );
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rtems_interrupt_disable(l);
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v = in_8( r );
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if ( mask ) {
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out_8( r, v & ~mask );
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}
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rtems_interrupt_enable(l);
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return v;
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}
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uint8_t
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BSP_setLEDs(uint8_t mask)
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{
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return BSP_setSysReg( BSP_MVME3100_SYS_IND_REG, mask );
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}
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uint8_t
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BSP_clrLEDs(uint8_t mask)
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{
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return BSP_clrSysReg( BSP_MVME3100_SYS_IND_REG, mask );
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}
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uint8_t
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BSP_eeprom_write_protect(void)
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{
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uint8_t m = BSP_MVME3100_SYS_CR_EEPROM_WP;
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volatile uint8_t *r = BSP_MVME3100_SYS_CR;
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return m & BSP_setSysReg( r, m );
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}
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uint8_t
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BSP_eeprom_write_enable(void)
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{
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uint8_t m = BSP_MVME3100_SYS_CR_EEPROM_WP;
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volatile uint8_t *r = BSP_MVME3100_SYS_CR;
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return m & BSP_clrSysReg( r, m );
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}
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