diff options
Diffstat (limited to 'drivers/arm/cci/cci.c')
| -rw-r--r-- | drivers/arm/cci/cci.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/arm/cci/cci.c b/drivers/arm/cci/cci.c index 81808b9f7..71b65f42c 100644 --- a/drivers/arm/cci/cci.c +++ b/drivers/arm/cci/cci.c @@ -5,6 +5,7 @@ */ #include <arch.h> +#include <arch_helpers.h> #include <assert.h> #include <cci.h> #include <debug.h> @@ -142,6 +143,12 @@ void cci_enable_snoop_dvm_reqs(unsigned int master_id) SLAVE_IFACE_OFFSET(slave_if_id) + SNOOP_CTRL_REG, DVM_EN_BIT | SNOOP_EN_BIT); + /* + * Wait for the completion of the write to the Snoop Control Register + * before testing the change_pending bit + */ + dmbish(); + /* Wait for the dust to settle down */ while (mmio_read_32(cci_base + STATUS_REG) & CHANGE_PENDING_BIT) ; @@ -163,6 +170,12 @@ void cci_disable_snoop_dvm_reqs(unsigned int master_id) SLAVE_IFACE_OFFSET(slave_if_id) + SNOOP_CTRL_REG, ~(DVM_EN_BIT | SNOOP_EN_BIT)); + /* + * Wait for the completion of the write to the Snoop Control Register + * before testing the change_pending bit + */ + dmbish(); + /* Wait for the dust to settle down */ while (mmio_read_32(cci_base + STATUS_REG) & CHANGE_PENDING_BIT) ; |