Mercurial > flash_v2
diff packages/hal/powerpc/mpc8xx/current/include/var_cache.h @ 419:047f0d36832a
Add cache control for writethru/copyback modes
| author | gthomas |
|---|---|
| date | Wed, 13 Nov 2002 21:05:25 +0000 |
| parents | d2c90368aeef |
| children | 8e23fe1ac05e |
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--- a/packages/hal/powerpc/mpc8xx/current/include/var_cache.h +++ b/packages/hal/powerpc/mpc8xx/current/include/var_cache.h @@ -148,10 +148,24 @@ //#define HAL_DCACHE_BURST_SIZE(_size_) // Set the data cache write mode -//#define HAL_DCACHE_WRITE_MODE( _mode_ ) +#define HAL_DCACHE_WRITE_MODE( _mode_ ) \ + CYG_MACRO_START \ + if (_mode_ == HAL_DCACHE_WRITETHRU_MODE) { \ + asm volatile ("sync;" \ + "mtspr %0, %1;" \ + : : "I" (CYGARC_REG_DC_CST), \ + "r" (CYGARC_REG_DC_CMD_SW)); \ + } \ + if (_mode_ == HAL_DCACHE_WRITEBACK_MODE) { \ + asm volatile ("sync;" \ + "mtspr %0, %1;" \ + : : "I" (CYGARC_REG_DC_CST), \ + "r" (CYGARC_REG_DC_CMD_CW)); \ + } \ + CYG_MACRO_END -//#define HAL_DCACHE_WRITETHRU_MODE 0 -//#define HAL_DCACHE_WRITEBACK_MODE 1 +#define HAL_DCACHE_WRITETHRU_MODE 0 +#define HAL_DCACHE_WRITEBACK_MODE 1 // Load the contents of the given address range into the data cache