diff options
Diffstat (limited to 'arch/arm/plat-omap/include/plat/common.h')
| -rw-r--r-- | arch/arm/plat-omap/include/plat/common.h | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/include/plat/common.h b/arch/arm/plat-omap/include/plat/common.h new file mode 100644 index 00000000000..32c22272425 --- /dev/null +++ b/arch/arm/plat-omap/include/plat/common.h @@ -0,0 +1,83 @@ +/* + * arch/arm/plat-omap/include/mach/common.h + * + * Header for code common to all OMAP machines. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef __ARCH_ARM_MACH_OMAP_COMMON_H +#define __ARCH_ARM_MACH_OMAP_COMMON_H + +#include <plat/i2c.h> + +struct sys_timer; + +/* used by omap-smp.c and board-4430sdp.c */ +extern void __iomem *gic_cpu_base_addr; + +extern void omap_map_common_io(void); +extern struct sys_timer omap_timer; + +/* IO bases for various OMAP processors */ +struct omap_globals { + u32 class; /* OMAP class to detect */ + void __iomem *tap; /* Control module ID code */ + void __iomem *sdrc; /* SDRAM Controller */ + void __iomem *sms; /* SDRAM Memory Scheduler */ + void __iomem *ctrl; /* System Control Module */ + void __iomem *prm; /* Power and Reset Management */ + void __iomem *cm; /* Clock Management */ + void __iomem *cm2; +}; + +void omap2_set_globals_242x(void); +void omap2_set_globals_243x(void); +void omap2_set_globals_343x(void); +void omap2_set_globals_443x(void); + +/* These get called from omap2_set_globals_xxxx(), do not call these */ +void omap2_set_globals_tap(struct omap_globals *); +void omap2_set_globals_sdrc(struct omap_globals *); +void omap2_set_globals_control(struct omap_globals *); +void omap2_set_globals_prcm(struct omap_globals *); + +/** + * omap_test_timeout - busy-loop, testing a condition + * @cond: condition to test until it evaluates to true + * @timeout: maximum number of microseconds in the timeout + * @index: loop index (integer) + * + * Loop waiting for @cond to become true or until at least @timeout + * microseconds have passed. To use, define some integer @index in the + * calling code. After running, if @index == @timeout, then the loop has + * timed out. + */ +#define omap_test_timeout(cond, timeout, index) \ +({ \ + for (index = 0; index < timeout; index++) { \ + if (cond) \ + break; \ + udelay(1); \ + } \ +}) + +#endif /* __ARCH_ARM_MACH_OMAP_COMMON_H */ |