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nvmem: lan9662-otp: add support for LAN969x

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Microchip LAN969x provides OTP with the same control logic, only the size
differs as LAN969x has 16KB of OTP instead of 8KB like on LAN966x.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Signed-off-by: Srinivas Kandagatla <srini@kernel.org>
Link: https://patch.msgid.link/20260530205333.117458-9-srini@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Horatiu Vultur
2026-05-30 21:53:27 +01:00
committed by Greg Kroah-Hartman
parent 7acd1e983c
commit 4d8d405b13
2 changed files with 10 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/nvmem/Kconfig
View File

@@ -138,7 +138,7 @@ config NVMEM_JZ4780_EFUSE
config NVMEM_LAN9662_OTPC
tristate "Microchip LAN9662 OTP controller support"
depends on SOC_LAN966 || COMPILE_TEST
depends on SOC_LAN966 || ARCH_LAN969X || COMPILE_TEST
depends on HAS_IOMEM
help
This driver enables the OTP controller available on Microchip LAN9662

12
drivers/nvmem/lan9662-otpc.c
View File

@@ -27,7 +27,6 @@
#define OTP_OTP_STATUS_OTP_CPUMPEN BIT(1)
#define OTP_OTP_STATUS_OTP_BUSY BIT(0)
#define OTP_MEM_SIZE 8192
#define OTP_SLEEP_US 10
#define OTP_TIMEOUT_US 500000
@@ -176,7 +175,6 @@ static struct nvmem_config otp_config = {
.word_size = 1,
.reg_read = lan9662_otp_read,
.reg_write = lan9662_otp_write,
.size = OTP_MEM_SIZE,
};
static int lan9662_otp_probe(struct platform_device *pdev)
@@ -196,6 +194,7 @@ static int lan9662_otp_probe(struct platform_device *pdev)
otp_config.priv = otp;
otp_config.dev = dev;
otp_config.size = (uintptr_t) device_get_match_data(dev);
nvmem = devm_nvmem_register(dev, &otp_config);
@@ -203,7 +202,14 @@ static int lan9662_otp_probe(struct platform_device *pdev)
}
static const struct of_device_id lan9662_otp_match[] = {
{ .compatible = "microchip,lan9662-otpc", },
{
.compatible = "microchip,lan9662-otpc",
.data = (const void *) SZ_8K,
},
{
.compatible = "microchip,lan9691-otpc",
.data = (const void *) SZ_16K,
},
{ },
};
MODULE_DEVICE_TABLE(of, lan9662_otp_match);