diff options
Diffstat (limited to 'arch/arm/plat-omap/include/plat/common.h')
| -rw-r--r-- | arch/arm/plat-omap/include/plat/common.h | 100 |
1 files changed, 100 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 00000000..5288130b --- /dev/null +++ b/arch/arm/plat-omap/include/plat/common.h @@ -0,0 +1,100 @@ +/* + * 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 <linux/delay.h> + +#include <plat/i2c.h> + +struct sys_timer; + +extern void omap_map_common_io(void); +extern struct sys_timer omap_timer; +extern bool omap_32k_timer_init(void); +extern int __init omap_init_clocksource_32k(void); +extern unsigned long long notrace omap_32k_sched_clock(void); + +extern void omap_reserve(void); + +/* + * IO bases for various OMAP processors + * Except the tap base, rest all the io bases + * listed are physical addresses. + */ +struct omap_globals { + u32 class; /* OMAP class to detect */ + void __iomem *tap; /* Control module ID code */ + unsigned long sdrc; /* SDRAM Controller */ + unsigned long sms; /* SDRAM Memory Scheduler */ + unsigned long ctrl; /* System Control Module */ + unsigned long ctrl_pad; /* PAD Control Module */ + unsigned long prm; /* Power and Reset Management */ + unsigned long cm; /* Clock Management */ + unsigned long cm2; +}; + +void omap2_set_globals_242x(void); +void omap2_set_globals_243x(void); +void omap2_set_globals_3xxx(void); +void omap2_set_globals_443x(void); +void omap2_set_globals_ti816x(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 *); + +void omap3_map_io(void); + +/** + * 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); \ + } \ +}) + +extern struct device *omap2_get_mpuss_device(void); +extern struct device *omap2_get_iva_device(void); +extern struct device *omap2_get_l3_device(void); +extern struct device *omap4_get_dsp_device(void); + +#endif /* __ARCH_ARM_MACH_OMAP_COMMON_H */ |