C++ (Cpp) CP15_WriteControl Examples

Example #1

File: cp15.c Project: Meteroi/mboot

//------------------------------------------------------------------------------
/// Disable Instruction cache
//------------------------------------------------------------------------------
void CP15_DisableIcache(void)
{
    U32 control;

    control = CP15_ReadControl();

    // Check if cache is enabled
    if ((control & (1 << CP15_I_BIT)) != 0) {
        control &= ~(1 << CP15_I_BIT);
        CP15_WriteControl(control);        
        DEBUG_MSG("I cache disabled.");
    }
    else {
        DEBUG_MSG("I cache is already disabled.");
    }
} 

Example #2

File: cp15.c Project: Meteroi/mboot

//------------------------------------------------------------------------------
/// Enable MMU
//------------------------------------------------------------------------------
void CP15_EnableMMU(void)
{
    U32 control;

    control = CP15_ReadControl();

    // Check if MMU is disabled
    if ((control & (1 << CP15_M_BIT)) == 0) {

        control |= (1 << CP15_M_BIT);
        CP15_WriteControl(control);        
        DEBUG_MSG("MMU enabled.");
    }
    else {
        DEBUG_MSG("MMU is already enabled.");
    }
}

Example #3

File: cp15.c Project: running1919/qianlab

//------------------------------------------------------------------------------
/// Disable Data cache
//------------------------------------------------------------------------------
void CP15_DisableDcache(void)
{
    unsigned int control;

    control = CP15_ReadControl();

    // Check if cache is enabled
    if ((control & (1 << CP15_C_BIT)) != 0) {

        control &= ~(1ul << CP15_C_BIT);
        CP15_WriteControl(control);        
        TRACE_INFO("D cache disabled.\n\r");
    }
    else {

        TRACE_INFO("D cache is already disabled.\n\r");
    }
}

Example #4

File: cp15.c Project: running1919/qianlab

//------------------------------------------------------------------------------
/// Enable MMU
//------------------------------------------------------------------------------
void CP15_EnableMMU(void)
{
    unsigned int control;

    control = CP15_ReadControl();

    // Check if MMU is disabled
    if ((control & (1 << CP15_M_BIT)) == 0) {

        control |= (1 << CP15_M_BIT);
        CP15_WriteControl(control);        
        TRACE_INFO("MMU enabled.\n\r");
    }
    else {

        TRACE_INFO("MMU is already enabled.\n\r");
    }
}

Example #5

File: cp15.c Project: Meteroi/mboot

//------------------------------------------------------------------------------
/// Enable Instruction cache
//------------------------------------------------------------------------------
void CP15_EnableIcache(void)
{
    U32 control;

    control = CP15_ReadControl();

    // Check if cache is disabled
    if ((control & (1 << CP15_I_BIT)) == 0) {
        control |= (1 << CP15_I_BIT);
        CP15_WriteControl(control);        
        DEBUG_MSG("I cache enabled.");
    }
#if !defined(OP_BOOTSTRAP_on)
    else {
        DEBUG_MSG("I cache is already enabled.");
    }
#endif
}

Example #6

File: cp15.c Project: Meteroi/mboot

//------------------------------------------------------------------------------
/// Disable MMU
//------------------------------------------------------------------------------
void CP15_DisableMMU(void)
{
    U32 control;

    control = CP15_ReadControl();

    // Check if MMU is enabled
    if ((control & (1 << CP15_M_BIT)) != 0) {

        control &= ~(1 << CP15_M_BIT);
        control &= ~(1 << CP15_C_BIT);
        CP15_WriteControl(control);        
        DEBUG_MSG("MMU disabled.");
    }
    else {

        DEBUG_MSG("MMU is already disabled.");
    }
}

Example #7

File: cp15.c Project: Flyagin/BS-MRZV

//------------------------------------------------------------------------------
/// Disable MMU
//------------------------------------------------------------------------------
void CP15_DisableMMU(void)
{
    unsigned int control;

    control = CP15_ReadControl();

    // Check if MMU is enabled
    if ((control & (1 << CP15_M_BIT)) != 0) {

        control &= (unsigned int)(~(1 << CP15_M_BIT));
        control &= (unsigned int)(~(1 << CP15_C_BIT));
        CP15_WriteControl(control);        
        TRACE_INFO("MMU disabled.\n\r");
    }
    else {

        TRACE_INFO("MMU is already disabled.\n\r");
    }
}

Example #8

File: cp15.c Project: running1919/qianlab

//------------------------------------------------------------------------------
/// Enable Instruction cache
//------------------------------------------------------------------------------
void CP15_EnableIcache(void)
{
    unsigned int control;

    control = CP15_ReadControl();

    // Check if cache is disabled
    if ((control & (1 << CP15_I_BIT)) == 0) {

        control |= (1 << CP15_I_BIT);
        CP15_WriteControl(control);        
        TRACE_INFO("I cache enabled.\n\r");
    }
#if !defined(OP_BOOTSTRAP_on)
    else {

        TRACE_INFO("I cache is already enabled.\n\r");
    }
#endif
}

Example #9

File: cp15.c Project: Meteroi/mboot

//------------------------------------------------------------------------------
/// Enable Data cache
//------------------------------------------------------------------------------
void CP15_EnableDcache(void)
{
    U32 control;

    control = CP15_ReadControl();

    if( !CP15_IsMMUEnabled() ) {
        DEBUG_MSG("Do nothing: MMU not enabled");
    }
    else {
        // Check if cache is disabled
        if ((control & (1 << CP15_C_BIT)) == 0) {

            control |= (1 << CP15_C_BIT);
            CP15_WriteControl(control);        
            DEBUG_MSG("D cache enabled.");
        }
        else {
            DEBUG_MSG("D cache is already enabled.");
        }
    }
}

Example #10

File: cp15.c Project: running1919/qianlab

//------------------------------------------------------------------------------
/// Enable Data cache
//------------------------------------------------------------------------------
void CP15_EnableDcache(void)
{
    unsigned int control;

    control = CP15_ReadControl();

    if( !CP15_IsMMUEnabled() ) {
        TRACE_ERROR("Do nothing: MMU not enabled\n\r");
    }
    else {
        // Check if cache is disabled
        if ((control & (1 << CP15_C_BIT)) == 0) {

            control |= (1 << CP15_C_BIT);
            CP15_WriteControl(control);        
            TRACE_INFO("D cache enabled.\n\r");
        }
        else {

            TRACE_INFO("D cache is already enabled.\n\r");
        }
    }
}