From: Bryan O'Donoghue <pure.logic@nexus-software.ie>
To: l.stach@pengutronix.de, peng.fan@nxp.com, shawnguo@kernel.org,
srinivas.kandagatla@linaro.org, leonard.crestez@nxp.com
Cc: aisheng.dong@nxp.com, abel.vesa@nxp.com, anson.huang@nxp.com,
linux-imx@nxp.com, kernel@pengutronix.de, fabio.estevam@nxp.com,
Bryan O'Donoghue <pure.logic@nexus-software.ie>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 1/5] nvmem: imx-ocotp: Elongate OCOTP_CTRL ADDR field to eight bits
Date: Mon, 22 Apr 2019 16:04:56 +0100 [thread overview]
Message-ID: <20190422150500.11082-2-pure.logic@nexus-software.ie> (raw)
In-Reply-To: <20190422150500.11082-1-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>
---
drivers/nvmem/imx-ocotp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/nvmem/imx-ocotp.c b/drivers/nvmem/imx-ocotp.c
index 4cf7b61e4bf5..6600c4ddeb51 100644
--- a/drivers/nvmem/imx-ocotp.c
+++ b/drivers/nvmem/imx-ocotp.c
@@ -45,7 +45,7 @@
#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
--
2.20.1
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next prev parent reply other threads:[~2019-04-22 15:05 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-22 15:04 [PATCH v4 0/5] Add i.MX8MM support Bryan O'Donoghue
2019-04-22 15:04 ` Bryan O'Donoghue [this message]
2019-04-22 15:04 ` [PATCH v4 2/5] nvmem: imx-ocotp: Ensure WAIT bits are preserved when setting timing Bryan O'Donoghue
2019-04-22 15:04 ` [PATCH v4 3/5] nvmem: imx-ocotp: Ensure the RELAX field is non-zero Bryan O'Donoghue
2019-04-23 8:48 ` Leonard Crestez
2019-04-23 14:07 ` Bryan O'Donoghue
2019-04-23 14:42 ` Leonard Crestez
2019-04-23 14:58 ` Bryan O'Donoghue
2019-04-22 15:04 ` [PATCH v4 4/5] nvmem: imx-ocotp: Add i.MX8MM support Bryan O'Donoghue
2019-04-22 19:06 ` Leonard Crestez
2019-04-22 15:05 ` [PATCH v4 5/5] dt-bindings: imx-ocotp: Add i.MX8MM compatible Bryan O'Donoghue
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