diff options
| author | Bryan O'Donoghue <[email protected]> | 2019-06-26 11:27:29 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2019-06-26 20:26:46 +0800 |
| commit | 0493c4792b4eb260441e57f52cc11a9ded48b5a7 (patch) | |
| tree | cf595ad4ad59502cfb41a9fe8cb864e0034d9913 | |
| parent | c03bb448f04f8195f04fe6fb3b0fb4699b311ece (diff) | |
nvmem: imx-ocotp: Ensure WAIT bits are preserved when setting timing
The i.MX6 and i.MX8 both have a bit-field spanning bits 27:22 called the
WAIT field.
The WAIT field according to the documentation for both parts "specifies
time interval between auto read and write access in one time program. It is
given in number of ipg_clk periods."
This patch ensures that the relevant field is read and written back to the
timing register.
Fixes: 0642bac7da42 ("nvmem: imx-ocotp: add write support")
Signed-off-by: Bryan O'Donoghue <[email protected]>
Reviewed-by: Leonard Crestez <[email protected]>
Signed-off-by: Srinivas Kandagatla <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
| -rw-r--r-- | drivers/nvmem/imx-ocotp.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/nvmem/imx-ocotp.c b/drivers/nvmem/imx-ocotp.c index 14c2bff2cd96..f4e117bbf2c3 100644 --- a/drivers/nvmem/imx-ocotp.c +++ b/drivers/nvmem/imx-ocotp.c @@ -183,7 +183,8 @@ static void imx_ocotp_set_imx6_timing(struct ocotp_priv *priv) strobe_prog = clk_rate / (1000000000 / 10000) + 2 * (DEF_RELAX + 1) - 1; strobe_read = clk_rate / (1000000000 / 40) + 2 * (DEF_RELAX + 1) - 1; - timing = strobe_prog & 0x00000FFF; + timing = readl(priv->base + IMX_OCOTP_ADDR_TIMING) & 0x0FC00000; + timing |= strobe_prog & 0x00000FFF; timing |= (relax << 12) & 0x0000F000; timing |= (strobe_read << 16) & 0x003F0000; |