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| author | Wealian Liao <whliao@nuvoton.corp-partner.google.com> | 2021-07-06 17:52:16 +0800 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-07-29 16:53:01 +0000 |
| commit | 5e07ac82ecf51aff07a8def8a4bae1330c426b22 (patch) | |
| tree | 58eb76f1407c91b28f37ec9949383b72282ec59b /zephyr/boards | |
| parent | 128ffb9526c7275f158d588243d03a4f4e2ac0af (diff) | |
| download | chrome-ec-5e07ac82ecf51aff07a8def8a4bae1330c426b22.tar.gz | |
zephyr: npcx_evb: Enable I2C
This CL enables I2C for npcx7/9_evb. Currently, zephyr-OS ec doesn't
use the GPIO for i2c unwedge functionality. Remove the GPIO setting for
i2c in gpio.dts.
BUG=none
BRANCH=none
TEST=Get sensor value by `i2c` shell command
```
uart:~$ i2c scan I2C_2_PORT_0
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- 48 -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
1 devices found on I2C_2_PORT_0
uart:~$ i2c read I2C_2_PORT_0 0x48 0x00 2
00000000: 1f 80
```
Signed-off-by: Wealian Liao <whliao@nuvoton.corp-partner.google.com>
Change-Id: If5029c41b7ba5400ee1492b408f7ab6975218c5b
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3060348
Reviewed-by: Yuval Peress <peress@chromium.org>
Commit-Queue: Yuval Peress <peress@chromium.org>
Diffstat (limited to 'zephyr/boards')
| -rw-r--r-- | zephyr/boards/arm/npcx_evb/npcx7_evb_defconfig | 3 | ||||
| -rw-r--r-- | zephyr/boards/arm/npcx_evb/npcx9_evb_defconfig | 3 | ||||
| -rw-r--r-- | zephyr/boards/arm/npcx_evb/npcx_evb.dtsi | 55 |
3 files changed, 61 insertions, 0 deletions
diff --git a/zephyr/boards/arm/npcx_evb/npcx7_evb_defconfig b/zephyr/boards/arm/npcx_evb/npcx7_evb_defconfig index 7491ae09df..cacc3fe709 100644 --- a/zephyr/boards/arm/npcx_evb/npcx7_evb_defconfig +++ b/zephyr/boards/arm/npcx_evb/npcx7_evb_defconfig @@ -32,3 +32,6 @@ CONFIG_CLOCK_CONTROL=y # WATCHDOG configuration CONFIG_WATCHDOG=y + +# I2C +CONFIG_I2C=y diff --git a/zephyr/boards/arm/npcx_evb/npcx9_evb_defconfig b/zephyr/boards/arm/npcx_evb/npcx9_evb_defconfig index cfb3a263e8..3dc981e555 100644 --- a/zephyr/boards/arm/npcx_evb/npcx9_evb_defconfig +++ b/zephyr/boards/arm/npcx_evb/npcx9_evb_defconfig @@ -31,3 +31,6 @@ CONFIG_CLOCK_CONTROL=y # WATCHDOG configuration CONFIG_WATCHDOG=y + +# I2C +CONFIG_I2C=y diff --git a/zephyr/boards/arm/npcx_evb/npcx_evb.dtsi b/zephyr/boards/arm/npcx_evb/npcx_evb.dtsi index 65c1ab7e68..3c1bb67f94 100644 --- a/zephyr/boards/arm/npcx_evb/npcx_evb.dtsi +++ b/zephyr/boards/arm/npcx_evb/npcx_evb.dtsi @@ -14,4 +14,59 @@ zephyr,shell-uart = &uart1; zephyr,flash = &flash0; }; + + named-i2c-ports { + compatible = "named-i2c-ports"; + + i2c_evb_0_0 { + i2c-port = <&i2c0_0>; + enum-name = "I2C_PORT_EVB_0"; + label = "I2C0_0"; + }; + i2c_evb_1_0 { + i2c-port = <&i2c1_0>; + enum-name = "I2C_PORT_EVB_1"; + label = "I2C1_0"; + }; + i2c_evb_2_0 { + i2c-port = <&i2c2_0>; + enum-name = "I2C_PORT_EVB_2"; + label = "I2C2_0"; + }; + i2c_evb_3_0 { + i2c-port = <&i2c3_0>; + enum-name = "I2C_PORT_EVB_3"; + label = "I2C3_0"; + }; + i2c_evb_7_0 { + i2c-port = <&i2c7_0>; + enum-name = "I2C_PORT_EVB_7"; + label = "I2C7_0"; + }; + }; +}; + +&i2c0_0 { + status = "okay"; + clock-frequency = <I2C_BITRATE_STANDARD>; +}; + +&i2c1_0 { + status = "okay"; + clock-frequency = <I2C_BITRATE_STANDARD>; +}; + +&i2c2_0 { + status = "okay"; + clock-frequency = <I2C_BITRATE_STANDARD>; +}; + +&i2c3_0 { + status = "okay"; + clock-frequency = <I2C_BITRATE_STANDARD>; +}; + +&i2c7_0 { + status = "okay"; + clock-frequency = <I2C_BITRATE_STANDARD>; }; |