Commit a7526723b7fced9fc0dfa033c4227f040e351e78
Committed by
Greg Kroah-Hartman
1 parent
e95ec3582a
Exists in
smarct4x-processor-sdk-04.01.00.06
and in
1 other branch
nvmem: imx-ocotp: Fix wrong register size
[ Upstream commit 14ba972842f9e84e6d3264bc0302101b8a792288 ] All i.MX6 SoCs have an OCOTP Controller with 4kbit fuses. The i.MX6SL is an exception and has only 2kbit fuses. In the TRM for the i.MX6DQ (IMX6QDRM - Rev 2, 06/2014) the fuses size is described in chapter 46.1.1 with: "32-bit word restricted program and read to 4Kbits of eFuse OTP(512x8)." In the TRM for the i.MX6SL (IMX6SLRM - Rev 2, 06/2015) the fuses size is described in chapter 34.1.1 with: "32-bit word restricted program and read to 2 kbit of eFuse OTP(128x8)." Since the Freescale Linux kernel OCOTP driver works with a fuses size of 2 kbit for the i.MX6SL, it looks like the TRM is wrong and the formula to calculate the correct fuses size has to be 256x8. Signed-off-by: Daniel Schultz <d.schultz@phytec.de> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Showing 1 changed file with 1 additions and 1 deletions Side-by-side Diff
drivers/nvmem/imx-ocotp.c
... | ... | @@ -71,7 +71,7 @@ |
71 | 71 | |
72 | 72 | static const struct of_device_id imx_ocotp_dt_ids[] = { |
73 | 73 | { .compatible = "fsl,imx6q-ocotp", (void *)128 }, |
74 | - { .compatible = "fsl,imx6sl-ocotp", (void *)32 }, | |
74 | + { .compatible = "fsl,imx6sl-ocotp", (void *)64 }, | |
75 | 75 | { .compatible = "fsl,imx6sx-ocotp", (void *)128 }, |
76 | 76 | { }, |
77 | 77 | }; |