[PATCH v2 3/7] mailbox: bcm-flexrm-mailbox: Fix mask used in CMPL_START_ADDR_VALUE()

From: Anup Patel
Date: Fri Jul 21 2017 - 02:56:29 EST


The mask used in CMPL_START_ADDR_VALUE() should be 27bits instead of
26bits. This incorrect mask was causing completion writes to 40bits
physical address fail.

This patch fixes mask used in CMPL_START_ADDR_VALUE() macro.

Fixes: dbc049eee730 ("mailbox: Add driver for Broadcom FlexRM
ring manager")

Signed-off-by: Anup Patel <anup.patel@xxxxxxxxxxxx>
Reviewed-by: Ray Jui <ray.jui@xxxxxxxxxxxx>
Reviewed-by: Scott Branden <scott.branden@xxxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
---
drivers/mailbox/bcm-flexrm-mailbox.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mailbox/bcm-flexrm-mailbox.c b/drivers/mailbox/bcm-flexrm-mailbox.c
index a0be2ea..46ad305 100644
--- a/drivers/mailbox/bcm-flexrm-mailbox.c
+++ b/drivers/mailbox/bcm-flexrm-mailbox.c
@@ -97,7 +97,7 @@

/* Register RING_CMPL_START_ADDR fields */
#define CMPL_START_ADDR_VALUE(pa) \
- ((u32)((((u64)(pa)) >> RING_CMPL_ALIGN_ORDER) & 0x03ffffff))
+ ((u32)((((u64)(pa)) >> RING_CMPL_ALIGN_ORDER) & 0x07ffffff))

/* Register RING_CONTROL fields */
#define CONTROL_MASK_DISABLE_CONTROL 12
--
2.7.4