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Diffstat (limited to 'c/src/lib/libbsp/powerpc/mvme3100/startup/misc.c')
| -rw-r--r-- | c/src/lib/libbsp/powerpc/mvme3100/startup/misc.c | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/powerpc/mvme3100/startup/misc.c b/c/src/lib/libbsp/powerpc/mvme3100/startup/misc.c new file mode 100644 index 0000000000..98ab3eb07b --- /dev/null +++ b/c/src/lib/libbsp/powerpc/mvme3100/startup/misc.c @@ -0,0 +1,133 @@ +/* $Id$ */ + +/* Miscellaneous small BSP routines; reboot, board CSR, ... */ + +/* + * Authorship + * ---------- + * This software ('mvme3100' RTEMS BSP) was created by + * + * Till Straumann <strauman@slac.stanford.edu>, 2005-2007, + * Stanford Linear Accelerator Center, Stanford University. + * + * Acknowledgement of sponsorship + * ------------------------------ + * The 'mvme3100' BSP 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 + */ + +#include <rtems.h> +#include <bsp.h> + +void +rtemsReboot() +{ +uint8_t v; + /* + * AFAIK, the hardest reset available; cleared + * some errors a VME-bus reset wouldn't (hung + * i2c bus)... + */ + v = in_8( BSP_MVME3100_SYS_CR ); + v &= ~BSP_MVME3100_SYS_CR_RESET_MSK; + v |= BSP_MVME3100_SYS_CR_RESET; + out_8( BSP_MVME3100_SYS_CR, v ); +} + +uint8_t +BSP_setSysReg(volatile uint8_t *r, uint8_t mask) +{ +uint8_t v; +rtems_interrupt_level l; + + if ( !mask ) + return in_8( r ); + + rtems_interrupt_disable(l); + v = in_8( r ); + if ( mask ) { + out_8( r, v | mask ); + } + rtems_interrupt_enable(l); + return v; +} + +uint8_t +BSP_clrSysReg(volatile uint8_t *r, uint8_t mask) +{ +uint8_t v; +rtems_interrupt_level l; + + if ( !mask ) + return in_8( r ); + + rtems_interrupt_disable(l); + v = in_8( r ); + if ( mask ) { + out_8( r, v & ~mask ); + } + rtems_interrupt_enable(l); + return v; +} + +uint8_t +BSP_setLEDs(uint8_t mask) +{ + return BSP_setSysReg( BSP_MVME3100_SYS_IND_REG, mask ); +} + +uint8_t +BSP_clrLEDs(uint8_t mask) +{ + return BSP_clrSysReg( BSP_MVME3100_SYS_IND_REG, mask ); +} + +uint8_t +BSP_eeprom_write_protect() +{ +uint8_t m = BSP_MVME3100_SYS_CR_EEPROM_WP; +volatile uint8_t *r = BSP_MVME3100_SYS_CR; + + return m & BSP_setSysReg( r, m ); +} + +uint8_t +BSP_eeprom_write_enable() +{ +uint8_t m = BSP_MVME3100_SYS_CR_EEPROM_WP; +volatile uint8_t *r = BSP_MVME3100_SYS_CR; + + return m & BSP_clrSysReg( r, m ); +} |