Mule is an MCU that emulates a set of I2C devices which are reachable
through an I2C-mux that is implemented in a different patch-series[1].
Device #2 on the mux is an emulation of NVRAM (PCF8570 I2C interface)
with a size of 8 bytes.
Device #3 on the mux is an emulation of a read-only NVRAM (PCF8570 I2C
interface) with a size of 32 bytes. This memory contains information
relevant to the Mule firmware.
+-----------------------------------------------+
| Mule |
| +---------------+ |
----+----->|Config register| |
| | +--------|------+ |
| | | |
| | V |
| | __ +--------------+ |
| | | \-------->| amc6821 | |
| | | | +--------------+ |
| | | M |-------->| PWM over I2C | |
| +------------->| U | +--------------+ |
| | X |-------->| NVRAM | |
| | | +--------------+ |
| | /-------->| ROM | |
| |__/ +--------------+ |
+-----------------------------------------------+
This patch-series adds support for the NVRAM and ROM on rk3399-puma-haikou,
px30-ringneck-haikou, rk3588-tiger-haikou and rk3588-jaguar boards.
This patch-series can only be merged after [1].
[1] https://lore.kernel.org/lkml/[email protected]/
Signed-off-by: Farouk Bouabid <[email protected]>
---
Farouk Bouabid (4):
arm64: dts: rockchip: add mule nvram/rom to rk3399-puma
arm64: dts: rockchip: add mule nvram/rom to px30-ringneck
arm64: dts: rockchip: add mule nvram/rom to rk3588-tiger
arm64: dts: rockchip: add mule nvram/rom to rk3588-jaguar
arch/arm64/boot/dts/rockchip/px30-ringneck.dtsi | 45 +++++++++++++++++++++++++
arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi | 45 +++++++++++++++++++++++++
arch/arm64/boot/dts/rockchip/rk3588-jaguar.dts | 45 +++++++++++++++++++++++++
arch/arm64/boot/dts/rockchip/rk3588-tiger.dtsi | 45 +++++++++++++++++++++++++
4 files changed, 180 insertions(+)
---
base-commit: 2917aef27decdfc367f37f599a613255c98c2c26
change-id: 20240531-nvmem-fd2902430de5
Best regards,
--
Farouk Bouabid <[email protected]>
Add mule NVRAM and ROM on the Mule I2C mux (0x18).
Signed-off-by: Farouk Bouabid <[email protected]>
---
arch/arm64/boot/dts/rockchip/rk3588-jaguar.dts | 45 ++++++++++++++++++++++++++
1 file changed, 45 insertions(+)
diff --git a/arch/arm64/boot/dts/rockchip/rk3588-jaguar.dts b/arch/arm64/boot/dts/rockchip/rk3588-jaguar.dts
index 14f1322c162f..7434771901c3 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-jaguar.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588-jaguar.dts
@@ -33,6 +33,8 @@ button-bios-disable {
aliases {
ethernet0 = &gmac0;
i2c10 = &i2c10;
+ i2c12 = &i2c12;
+ i2c13 = &i2c13;
mmc0 = &sdhci;
mmc1 = &sdmmc;
rtc0 = &rtc_twi;
@@ -267,6 +269,49 @@ fan: fan@18 {
#cooling-cells = <2>;
};
};
+
+ i2c12: i2c@2 {
+ reg = <0x2>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ eeprom@18 {
+ compatible = "atmel,24c02";
+ reg = <0x18>;
+ size = <8>;
+ };
+ };
+
+ i2c13: i2c@3 {
+ reg = <0x3>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ eeprom@18 {
+ compatible = "atmel,24c02";
+ reg = <0x18>;
+ read-only;
+ size = <32>;
+
+ nvmem-layout {
+ compatible = "fixed-layout";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ mule-variant@0 {
+ reg = <0x0 0x1>;
+ };
+
+ mule-bl-version@1 {
+ reg = <0x1 0x8>;
+ };
+
+ mule-version@9 {
+ reg = <0x9 0x8>;
+ };
+ };
+ };
+ };
};
vdd_npu_s0: regulator@42 {
--
2.34.1
Add mule NVRAM and ROM on the Mule I2C mux (0x18).
Signed-off-by: Farouk Bouabid <[email protected]>
---
arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi | 45 +++++++++++++++++++++++++++
1 file changed, 45 insertions(+)
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
index 69b57cde7d78..7ab688c46a49 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
@@ -11,6 +11,8 @@ / {
aliases {
ethernet0 = &gmac;
i2c10 = &i2c10;
+ i2c12 = &i2c12;
+ i2c13 = &i2c13;
mmc0 = &sdhci;
};
@@ -395,6 +397,49 @@ fan: fan@18 {
#cooling-cells = <2>;
};
};
+
+ i2c12: i2c@2 {
+ reg = <0x2>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ eeprom@18 {
+ compatible = "atmel,24c02";
+ reg = <0x18>;
+ size = <8>;
+ };
+ };
+
+ i2c13: i2c@3 {
+ reg = <0x3>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ eeprom@18 {
+ compatible = "atmel,24c02";
+ reg = <0x18>;
+ read-only;
+ size = <32>;
+
+ nvmem-layout {
+ compatible = "fixed-layout";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ mule-variant@0 {
+ reg = <0x0 0x1>;
+ };
+
+ mule-bl-version@1 {
+ reg = <0x1 0x8>;
+ };
+
+ mule-version@9 {
+ reg = <0x9 0x8>;
+ };
+ };
+ };
+ };
};
rtc_twi: rtc@6f {
--
2.34.1
Add mule NVRAM and ROM on the Mule I2C mux (0x18).
Signed-off-by: Farouk Bouabid <[email protected]>
---
arch/arm64/boot/dts/rockchip/rk3588-tiger.dtsi | 45 ++++++++++++++++++++++++++
1 file changed, 45 insertions(+)
diff --git a/arch/arm64/boot/dts/rockchip/rk3588-tiger.dtsi b/arch/arm64/boot/dts/rockchip/rk3588-tiger.dtsi
index 5ed7d51717bb..7418bf86a618 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-tiger.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3588-tiger.dtsi
@@ -13,6 +13,8 @@ / {
aliases {
i2c10 = &i2c10;
+ i2c12 = &i2c12;
+ i2c13 = &i2c13;
mmc0 = &sdhci;
rtc0 = &rtc_twi;
};
@@ -228,6 +230,49 @@ fan: fan@18 {
#cooling-cells = <2>;
};
};
+
+ i2c12: i2c@2 {
+ reg = <0x2>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ eeprom@18 {
+ compatible = "atmel,24c02";
+ reg = <0x18>;
+ size = <8>;
+ };
+ };
+
+ i2c13: i2c@3 {
+ reg = <0x3>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ eeprom@18 {
+ compatible = "atmel,24c02";
+ reg = <0x18>;
+ read-only;
+ size = <32>;
+
+ nvmem-layout {
+ compatible = "fixed-layout";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ mule-variant@0 {
+ reg = <0x0 0x1>;
+ };
+
+ mule-bl-version@1 {
+ reg = <0x1 0x8>;
+ };
+
+ mule-version@9 {
+ reg = <0x9 0x8>;
+ };
+ };
+ };
+ };
};
rtc_twi: rtc@6f {
--
2.34.1