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/*
* Broadcom specific AMBA
* Core ops
*
* Licensed under the GNU/GPL. See COPYING for details.
*/
#include "bcma_private.h"
#include <linux/bcma/bcma.h>
bool bcma_core_is_enabled(struct bcma_device *core)
{
if ((bcma_aread32(core, BCMA_IOCTL) & (BCMA_IOCTL_CLK | BCMA_IOCTL_FGC))
!= BCMA_IOCTL_CLK)
return false;
if (bcma_aread32(core, BCMA_RESET_CTL) & BCMA_RESET_CTL_RESET)
return false;
return true;
}
EXPORT_SYMBOL_GPL(bcma_core_is_enabled);
static void bcma_core_disable(struct bcma_device *core, u32 flags)
{
if (bcma_aread32(core, BCMA_RESET_CTL) & BCMA_RESET_CTL_RESET)
return;
bcma_awrite32(core, BCMA_IOCTL, flags);
bcma_aread32(core, BCMA_IOCTL);
udelay(10);
bcma_awrite32(core, BCMA_RESET_CTL, BCMA_RESET_CTL_RESET);
udelay(1);
}
int bcma_core_enable(struct bcma_device *core, u32 flags)
{
bcma_core_disable(core, flags);
bcma_awrite32(core, BCMA_IOCTL, (BCMA_IOCTL_CLK | BCMA_IOCTL_FGC | flags));
bcma_aread32(core, BCMA_IOCTL);
bcma_awrite32(core, BCMA_RESET_CTL, 0);
udelay(1);
bcma_awrite32(core, BCMA_IOCTL, (BCMA_IOCTL_CLK | flags));
bcma_aread32(core, BCMA_IOCTL);
udelay(1);
return 0;
}
EXPORT_SYMBOL_GPL(bcma_core_enable);
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