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author | 2009-12-08 08:15:29 -0800 | |
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committer | 2009-12-08 08:15:29 -0800 | |
commit | 1c496784a0d317535f846ddb2c93a08ba936266b (patch) | |
tree | 6d0225860032f263b6d95a3e55c364a1a5f55ec1 /arch/arm/mach-omap1/include/mach/mtd-xip.h | |
parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k (diff) | |
parent | arm: omap: Add omap3_defconfig (diff) | |
download | linux-dev-1c496784a0d317535f846ddb2c93a08ba936266b.tar.xz linux-dev-1c496784a0d317535f846ddb2c93a08ba936266b.zip |
Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6
* 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (149 commits)
arm: omap: Add omap3_defconfig
AM35xx: Defconfig for AM3517 EVM board
AM35xx: Add support for AM3517 EVM board
omap: 3630sdp: defconfig creation
omap: 3630sdp: introduce 3630 sdp board support
omap3: Add defconfig for IGEP v2 board
omap3: Add minimal IGEP v2 support
omap3: Add CompuLab CM-T35 defconfig
omap3: Add CompuLab CM-T35 board support
omap3: rx51: Add wl1251 wlan driver support
omap3: rx51: Add SDRAM init
omap1: Add default kernel configuration for Herald
omap1: Add board support and LCD for HTC Herald
omap: zoom2: update defconfig for LL_DEBUG_NONE
omap: zoom3: defconfig creation
omap3: zoom: Introduce zoom3 board support
omap3: zoom: Drop i2c-1 speed to 2400
omap3: zoom: rename zoom2 name to generic zoom
omap3: zoom: split board file for software reuse
omap3evm: MIgrate to smsc911x ethernet driver
...
Fix trivial conflict (two unrelated config options added next to each
other) in arch/arm/mach-omap2/Makefile
Diffstat (limited to 'arch/arm/mach-omap1/include/mach/mtd-xip.h')
-rw-r--r-- | arch/arm/mach-omap1/include/mach/mtd-xip.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/arch/arm/mach-omap1/include/mach/mtd-xip.h b/arch/arm/mach-omap1/include/mach/mtd-xip.h new file mode 100644 index 000000000000..f82a8dcaad94 --- /dev/null +++ b/arch/arm/mach-omap1/include/mach/mtd-xip.h @@ -0,0 +1,61 @@ +/* + * MTD primitives for XIP support. Architecture specific functions. + * + * Do not include this file directly. It's included from linux/mtd/xip.h + * + * Author: Vladimir Barinov <vbarinov@embeddedalley.com> + * + * (c) 2005 MontaVista Software, Inc. This file is licensed under the + * terms of the GNU General Public License version 2. This program is + * licensed "as is" without any warranty of any kind, whether express or + * implied. + */ + +#ifndef __ARCH_OMAP_MTD_XIP_H__ +#define __ARCH_OMAP_MTD_XIP_H__ + +#include <mach/hardware.h> +#define OMAP_MPU_TIMER_BASE (0xfffec500) +#define OMAP_MPU_TIMER_OFFSET 0x100 + +typedef struct { + u32 cntl; /* CNTL_TIMER, R/W */ + u32 load_tim; /* LOAD_TIM, W */ + u32 read_tim; /* READ_TIM, R */ +} xip_omap_mpu_timer_regs_t; + +#define xip_omap_mpu_timer_base(n) \ +((volatile xip_omap_mpu_timer_regs_t*)OMAP1_IO_ADDRESS(OMAP_MPU_TIMER_BASE + \ + (n)*OMAP_MPU_TIMER_OFFSET)) + +static inline unsigned long xip_omap_mpu_timer_read(int nr) +{ + volatile xip_omap_mpu_timer_regs_t* timer = xip_omap_mpu_timer_base(nr); + return timer->read_tim; +} + +#define xip_irqpending() \ + (omap_readl(OMAP_IH1_ITR) & ~omap_readl(OMAP_IH1_MIR)) +#define xip_currtime() (~xip_omap_mpu_timer_read(0)) + +/* + * It's permitted to do approxmation for xip_elapsed_since macro + * (see linux/mtd/xip.h) + */ + +#ifdef CONFIG_MACH_OMAP_PERSEUS2 +#define xip_elapsed_since(x) (signed)((~xip_omap_mpu_timer_read(0) - (x)) / 7) +#else +#define xip_elapsed_since(x) (signed)((~xip_omap_mpu_timer_read(0) - (x)) / 6) +#endif + +/* + * xip_cpu_idle() is used when waiting for a delay equal or larger than + * the system timer tick period. This should put the CPU into idle mode + * to save power and to be woken up only when some interrupts are pending. + * As above, this should not rely upon standard kernel code. + */ + +#define xip_cpu_idle() asm volatile ("mcr p15, 0, %0, c7, c0, 4" :: "r" (1)) + +#endif /* __ARCH_OMAP_MTD_XIP_H__ */ |