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author | 2021-10-28 09:03:44 +0200 | |
---|---|---|
committer | 2021-11-15 09:33:21 -0800 | |
commit | de7880016665afe7fa7d40e1fafa859260d53ba1 (patch) | |
tree | 146c74d19d4946642db1848e5bd4aab937dca78a /arch/arm/boot/dts/bcm53016-meraki-mr32.dts | |
parent | ARM: dts: BCM5301X: define RTL8365MB switch on Asus RT-AC88U (diff) | |
download | wireguard-linux-de7880016665afe7fa7d40e1fafa859260d53ba1.tar.xz wireguard-linux-de7880016665afe7fa7d40e1fafa859260d53ba1.zip |
ARM: BCM53016: MR32: convert to Broadcom iProc I2C Driver
replaces the bit-banged i2c-gpio provided i2c functionality
with the hardware in the SoC.
During review of the MR32, Florian Fainelli pointed out that the
SoC has a real I2C-controller. Furthermore, the connected pins
(SDA and SCL) would line up perfectly for use. Back then I couldn't
get it working though and I left it with i2c-gpio (which worked).
Now we know the reason: the interrupt was incorrectly specified.
(Hence, this patch depends on Florian Fainelli's
"ARM: dts: BCM5301X: Fix I2C controller interrupt" patch).
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Rafał Miłecki <zajec5@gmail.com>
Cc: Matthew Hagan <mnhagan88@gmail.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Diffstat (limited to 'arch/arm/boot/dts/bcm53016-meraki-mr32.dts')
-rw-r--r-- | arch/arm/boot/dts/bcm53016-meraki-mr32.dts | 62 |
1 files changed, 28 insertions, 34 deletions
diff --git a/arch/arm/boot/dts/bcm53016-meraki-mr32.dts b/arch/arm/boot/dts/bcm53016-meraki-mr32.dts index 64f973e1ef12..66c64a6ec414 100644 --- a/arch/arm/boot/dts/bcm53016-meraki-mr32.dts +++ b/arch/arm/boot/dts/bcm53016-meraki-mr32.dts @@ -84,40 +84,6 @@ 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 { @@ -228,3 +194,31 @@ }; }; }; + +&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>; + }; + }; +}; |