From: Robert Marko <robert.marko@sartura.hr>
To: srini@kernel.org, robh@kernel.org, krzk+dt@kernel.org,
conor+dt@kernel.org, nicolas.ferre@microchip.com,
claudiu.beznea@tuxon.dev, horatiu.vultur@microchip.com,
daniel.machon@microchip.com, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Cc: luka.perkov@sartura.hr, Robert Marko <robert.marko@sartura.hr>
Subject: [PATCH v3 2/3] nvmem: lan9662-otp: add support for LAN969x
Date: Fri, 15 May 2026 13:59:08 +0200 [thread overview]
Message-ID: <20260515115954.701155-2-robimarko@gmail.com> (raw)
In-Reply-To: <20260515115954.701155-1-robimarko@gmail.com>
From: Horatiu Vultur <horatiu.vultur@microchip.com>
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>
---
Changes in v3:
* Rebase onto current next-20260508
drivers/nvmem/Kconfig | 2 +-
drivers/nvmem/lan9662-otpc.c | 12 +++++++++---
2 files changed, 10 insertions(+), 4 deletions(-)
diff --git a/drivers/nvmem/Kconfig b/drivers/nvmem/Kconfig
index 74ddbd0f79b0..78b648e14727 100644
--- a/drivers/nvmem/Kconfig
+++ b/drivers/nvmem/Kconfig
@@ -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
diff --git a/drivers/nvmem/lan9662-otpc.c b/drivers/nvmem/lan9662-otpc.c
index 56fc19f092a7..62d1d6381bf8 100644
--- a/drivers/nvmem/lan9662-otpc.c
+++ b/drivers/nvmem/lan9662-otpc.c
@@ -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);
--
2.54.0
next prev parent reply other threads:[~2026-05-15 12:00 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-15 11:59 [PATCH v3 1/3] dt-bindings: nvmem: lan9662-otpc: Add LAN969x series Robert Marko
2026-05-15 11:59 ` Robert Marko [this message]
2026-05-15 12:31 ` [PATCH v3 2/3] nvmem: lan9662-otp: add support for LAN969x sashiko-bot
2026-05-15 11:59 ` [PATCH v3 3/3] arm64: dts: microchip: lan969x: add OTP node Robert Marko
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