[1/6] nvmem: imx-ocotp: Elongate OCOTP_CTRL ADDR field to eight bits

Message ID 20190626102733.11708-2-srinivas.kandagatla@linaro.org
State New
Headers show
Series
  • nvmem: patches for 5.3 set 2
Related show

Commit Message

Srinivas Kandagatla June 26, 2019, 10:27 a.m.
From: Bryan O'Donoghue <pure.logic@nexus-software.ie>


i.MX6 defines OCOTP_CTRLn:ADDR as seven bit address-field with a one bit
RSVD0 field, i.MX7 defines OCOTP_CTRLn:ADDR as a four bit address-field
with a four bit RSVD0 field.

i.MX8 defines the OCOTP_CTRLn:ADDR bit-field as a full range eight bits.

i.MX6 and i.MX7 should return zero for their respective RSVD0 bits and
ignore a write-back of zero where i.MX8 will make use of the full range.

This patch expands the bit-field definition for all users to eight bits,
which is safe due to RSVD0 being a no-op for the i.MX6 and i.MX7.

Signed-off-by: Bryan O'Donoghue <pure.logic@nexus-software.ie>

Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>

---
 drivers/nvmem/imx-ocotp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

-- 
2.21.0

Patch

diff --git a/drivers/nvmem/imx-ocotp.c b/drivers/nvmem/imx-ocotp.c
index bd016b928589..14c2bff2cd96 100644
--- a/drivers/nvmem/imx-ocotp.c
+++ b/drivers/nvmem/imx-ocotp.c
@@ -39,7 +39,7 @@ 
 #define IMX_OCOTP_ADDR_DATA2		0x0040
 #define IMX_OCOTP_ADDR_DATA3		0x0050
 
-#define IMX_OCOTP_BM_CTRL_ADDR		0x0000007F
+#define IMX_OCOTP_BM_CTRL_ADDR		0x000000FF
 #define IMX_OCOTP_BM_CTRL_BUSY		0x00000100
 #define IMX_OCOTP_BM_CTRL_ERROR		0x00000200
 #define IMX_OCOTP_BM_CTRL_REL_SHADOWS	0x00000400