diff options
Diffstat (limited to 'target/linux/bcm53xx/patches-5.10/332-Meraki-MR32-use-hw-i2c.patch')
| -rw-r--r-- | target/linux/bcm53xx/patches-5.10/332-Meraki-MR32-use-hw-i2c.patch | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/target/linux/bcm53xx/patches-5.10/332-Meraki-MR32-use-hw-i2c.patch b/target/linux/bcm53xx/patches-5.10/332-Meraki-MR32-use-hw-i2c.patch new file mode 100644 index 0000000000..acd69edaab --- /dev/null +++ b/target/linux/bcm53xx/patches-5.10/332-Meraki-MR32-use-hw-i2c.patch @@ -0,0 +1,85 @@ +From: Christian Lamparter <chunkeey@gmail.com> +Date: Sat, 12 Sep 2020 22:11:12 +0200 +Subject: bcm53xx: Meraki MR32 use hw i2c + +replace the i2c-gpio provided i2c functionality with the +hardware in the SoC. This can be activated once the +internal i2c works as well as the bit-banged i2c-gpio. + +Signed-off-by: Christian Lamparter <chunkeey@gmail.com> + +--- a/arch/arm/boot/dts/bcm53016-meraki-mr32.dts ++++ b/arch/arm/boot/dts/bcm53016-meraki-mr32.dts +@@ -85,40 +85,6 @@ + max-brightness = <255>; + }; + }; +- +- i2c { +- /* +- * The platform provided I2C does not budge. +- * This is a replacement until I can figure +- * out what are the missing bits... +- */ +- +- compatible = "i2c-gpio"; +- sda-gpios = <&chipcommon 5 GPIO_ACTIVE_HIGH>; +- scl-gpios = <&chipcommon 4 GPIO_ACTIVE_HIGH>; +- i2c-gpio,delay-us = <10>; /* close to 100 kHz */ +- #address-cells = <1>; +- #size-cells = <0>; +- +- current_sense: ina219@45 { +- compatible = "ti,ina219"; +- reg = <0x45>; +- shunt-resistor = <60000>; /* = 60 mOhms */ +- }; +- +- eeprom: eeprom@50 { +- compatible = "atmel,24c64"; +- reg = <0x50>; +- pagesize = <32>; +- read-only; +- #address-cells = <1>; +- #size-cells = <1>; +- +- mac_address: mac-address@66 { +- reg = <0x66 0x6>; +- }; +- }; +- }; + }; + + &uart0 { +@@ -196,3 +168,31 @@ + }; + }; + }; ++ ++&i2c0 { ++ status = "okay"; ++ ++ pinctrl-names = "default"; ++ pinctrl-0 = <&pinmux_i2c>; ++ ++ clock-frequency = <100000>; ++ ++ current_sense: ina219@45 { ++ compatible = "ti,ina219"; ++ reg = <0x45>; ++ shunt-resistor = <60000>; /* = 60 mOhms */ ++ }; ++ ++ eeprom: eeprom@50 { ++ compatible = "atmel,24c64"; ++ reg = <0x50>; ++ pagesize = <32>; ++ read-only; ++ #address-cells = <1>; ++ #size-cells = <1>; ++ ++ mac_address: mac-address@66 { ++ reg = <0x66 0x6>; ++ }; ++ }; ++}; |