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authorBryan O'Donoghue <pure.logic@nexus-software.ie>2019-06-26 13:27:28 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-06-26 15:26:46 +0300
commitc03bb448f04f8195f04fe6fb3b0fb4699b311ece (patch)
treef9fc27c186f055150f34be59e94eb832f743aa49 /drivers/nvmem
parent8083f3d78825c0ea1948339613914b46105bfd0b (diff)
downloadlinux-c03bb448f04f8195f04fe6fb3b0fb4699b311ece.tar.xz
nvmem: imx-ocotp: Elongate OCOTP_CTRL ADDR field to eight bits
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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/nvmem')
-rw-r--r--drivers/nvmem/imx-ocotp.c2
1 files changed, 1 insertions, 1 deletions
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