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| author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2013-03-11 17:51:42 +0000 |
|---|---|---|
| committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2013-03-11 17:51:42 +0000 |
| commit | 3578c60ae17a31fef6486ba5c3a2f97b899fb243 (patch) | |
| tree | 69156c78a6928e337491e60e93b707b1bf362c97 /nuttx/arch/arm/src/armv7-m | |
| parent | 065661cbab0d8ca6f3739c02d0536de3de362402 (diff) | |
| download | px4-nuttx-3578c60ae17a31fef6486ba5c3a2f97b899fb243.tar.gz px4-nuttx-3578c60ae17a31fef6486ba5c3a2f97b899fb243.tar.bz2 px4-nuttx-3578c60ae17a31fef6486ba5c3a2f97b899fb243.zip | |
Add MPU support for the LPC17xx family
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5731 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/arch/arm/src/armv7-m')
| -rw-r--r-- | nuttx/arch/arm/src/armv7-m/up_mpu.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/nuttx/arch/arm/src/armv7-m/up_mpu.c b/nuttx/arch/arm/src/armv7-m/up_mpu.c index d4b04a444..2b8a8f994 100644 --- a/nuttx/arch/arm/src/armv7-m/up_mpu.c +++ b/nuttx/arch/arm/src/armv7-m/up_mpu.c @@ -48,6 +48,11 @@ /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ +/* Configuration ************************************************************/ + +#ifndef CONFIG_ARMV7M_MPU_NREGIONS +# define CONFIG_ARMV7M_MPU_NREGIONS 8 +#endif /**************************************************************************** * Private Data @@ -84,13 +89,14 @@ static uint8_t g_region; * * Assumptions: * - Regions are never deallocated - * - Regions are only allocated early in initialization, so nothing - * special is require; + * - Regions are only allocated early in initialization, so no special + * protection against re-entrancy is required; * ****************************************************************************/ unsigned int mpu_allocregion(void) { + DEBUGASSERT(g_region < CONFIG_ARMV7M_MPU_NREGIONS); return (unsigned int)g_region++; } |