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Merge pull request #1520 from robertovargas-arm/cci-dsb

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cci: Use dsb to wait before reading status register
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Dimitris Papastamos 2018-08-13 15:29:22 +01:00 • committed by GitHub
commit 09895d42b5
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1 changed files with 2 additions and 2 deletions
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drivers/arm/cci/cci.c
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@ -147,7 +147,7 @@ void cci_enable_snoop_dvm_reqs(unsigned int master_id)
* Wait for the completion of the write to the Snoop Control Register * Wait for the completion of the write to the Snoop Control Register
* before testing the change_pending bit * before testing the change_pending bit
*/ */
dmbish(); dsbish();
/* Wait for the dust to settle down */ /* Wait for the dust to settle down */
while (mmio_read_32(cci_base + STATUS_REG) & CHANGE_PENDING_BIT) while (mmio_read_32(cci_base + STATUS_REG) & CHANGE_PENDING_BIT)
@ -174,7 +174,7 @@ void cci_disable_snoop_dvm_reqs(unsigned int master_id)
* Wait for the completion of the write to the Snoop Control Register * Wait for the completion of the write to the Snoop Control Register
* before testing the change_pending bit * before testing the change_pending bit
*/ */
dmbish(); dsbish();
/* Wait for the dust to settle down */ /* Wait for the dust to settle down */
while (mmio_read_32(cci_base + STATUS_REG) & CHANGE_PENDING_BIT) while (mmio_read_32(cci_base + STATUS_REG) & CHANGE_PENDING_BIT)