diff options
| author | Tim Lin <tim2.lin@ite.corp-partner.google.com> | 2021-11-08 14:00:12 +0800 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2022-01-06 21:52:29 +0000 |
| commit | 571863fea90b0527698871fafbac88ab197546ee (patch) | |
| tree | aed215145e76a9ff6c5c589f5496815f134b4841 | |
| parent | fe0ec4ebae9225bc9141322eca7a2c55c863ad3e (diff) | |
| download | chrome-ec-571863fea90b0527698871fafbac88ab197546ee.tar.gz | |
zephyr: dts: it8xxx2_evb: adjust the initial state of GPIO pin
Adjust the initial state of gpio pin to prevent leakage on the
it8xxx2_evb board.
Note1: pch_smi_l, pch_sci_l, gate_a20_h, lpc_clkrun_l have been
moved to unused-pins.
Note2: The following GPIO pins cannot be set as unused-gpios because
there alternate function needs to be tested on it8xxx2_evb.
These pins need to be pulled down externally to prevent leakage.
SPI_CONTROLLER: GPIOA6, GPIOC3, GPIOC5, GPIOG0(output low), GPIOG2
TECH0A : GPIOD6
ADC0~ADC5 : GPIOI0~GPIOI5
BUG=b:192354255
BRANCH=none
TEST=zmake testall
Signed-off-by: Tim Lin <tim2.lin@ite.corp-partner.google.com>
Change-Id: Ib5669d45b6b6f7c6233e5742447e5defb84417c0
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3367358
Reviewed-by: Denis Brockus <dbrockus@chromium.org>
Reviewed-by: Keith Short <keithshort@chromium.org>
Commit-Queue: Keith Short <keithshort@chromium.org>
| -rw-r--r-- | zephyr/boards/riscv/it8xxx2_evb/it8xxx2_evb.dts | 132 |
1 files changed, 116 insertions, 16 deletions
diff --git a/zephyr/boards/riscv/it8xxx2_evb/it8xxx2_evb.dts b/zephyr/boards/riscv/it8xxx2_evb/it8xxx2_evb.dts index ffdcc09083..52ee525eae 100644 --- a/zephyr/boards/riscv/it8xxx2_evb/it8xxx2_evb.dts +++ b/zephyr/boards/riscv/it8xxx2_evb/it8xxx2_evb.dts @@ -43,26 +43,10 @@ gpios = <&gpiob 0 GPIO_INPUT_PULL_UP>; #enum-name = "GPIO_UART1_RX"; }; - pch_smi_l { - gpios = <&gpiod 3 GPIO_OUT_HIGH>; - #enum-name = "GPIO_PCH_SMI_L"; - }; - pch_sci_l { - gpios = <&gpiod 4 GPIO_OUT_HIGH>; - #enum-name = "GPIO_PCH_SCI_L"; - }; - gate_a20_h { - gpios = <&gpiob 5 GPIO_OUT_HIGH>; - #enum-name = "GPIO_GATE_A20_H"; - }; sys_reset_l { gpios = <&gpiob 6 GPIO_OUT_HIGH>; enum-name = "GPIO_SYS_RESET_L"; }; - lpc_clkrun_l { - gpios = <&gpioh 0 GPIO_OUT_LOW>; - #enum-name = "GPIO_LPC_CLKRUN_L"; - }; pch_wake_l { gpios = <&gpiob 7 GPIO_OUT_HIGH>; enum-name = "GPIO_EC_PCH_WAKE_ODL"; @@ -198,6 +182,122 @@ rpm_max = <6500>; }; }; + + unused-pins { + compatible = "unused-gpios"; + + unused-gpios = + /* gpioa1 */ + <&gpioa 1 GPIO_INPUT_PULL_DOWN>, + /* gpioa2 */ + <&gpioa 2 GPIO_INPUT_PULL_DOWN>, + /* gpioa3 */ + <&gpioa 3 GPIO_INPUT_PULL_DOWN>, + /* gpioa4 */ + <&gpioa 4 GPIO_INPUT_PULL_DOWN>, + /* gpioa5 */ + <&gpioa 5 GPIO_INPUT_PULL_DOWN>, + + /* gpiob2 */ + <&gpiob 2 GPIO_INPUT_PULL_DOWN>, + /* gpiob5 */ + <&gpiob 5 GPIO_INPUT_PULL_DOWN>, + + /* gpioc0 */ + <&gpioc 0 GPIO_INPUT_PULL_DOWN>, + /* gpioc4 */ + <&gpioc 4 GPIO_INPUT_PULL_DOWN>, + /* gpioc6 */ + <&gpioc 6 GPIO_INPUT_PULL_DOWN>, + /* gpioc7 */ + <&gpioc 7 GPIO_INPUT_PULL_DOWN>, + + /* gpiod0 */ + <&gpiod 0 GPIO_INPUT_PULL_DOWN>, + /* gpiod1 */ + <&gpiod 1 GPIO_INPUT_PULL_DOWN>, + /* gpiod2 */ + <&gpiod 2 GPIO_INPUT_PULL_DOWN>, + /* gpiod3 */ + <&gpiod 3 GPIO_INPUT_PULL_DOWN>, + /* gpiod4 */ + <&gpiod 4 GPIO_INPUT_PULL_DOWN>, + /* gpiod5 */ + <&gpiod 5 GPIO_INPUT_PULL_DOWN>, + /* gpiod7 */ + <&gpiod 7 GPIO_INPUT_PULL_DOWN>, + + /* gpioe1 */ + <&gpioe 1 GPIO_INPUT_PULL_DOWN>, + /* gpioe5 */ + <&gpioe 5 GPIO_INPUT_PULL_DOWN>, + /* gpioe6 */ + <&gpioe 6 GPIO_INPUT_PULL_DOWN>, + + /* gpiof0 */ + <&gpiof 0 GPIO_INPUT_PULL_DOWN>, + /* gpiof1 */ + <&gpiof 1 GPIO_INPUT_PULL_DOWN>, + /* gpiof2 */ + <&gpiof 2 GPIO_INPUT_PULL_DOWN>, + /* gpiof3 */ + <&gpiof 3 GPIO_INPUT_PULL_DOWN>, + /* gpiof4 */ + <&gpiof 4 GPIO_INPUT_PULL_DOWN>, + /* gpiof5 */ + <&gpiof 5 GPIO_INPUT_PULL_DOWN>, + + /* gpiog1 */ + <&gpiog 1 GPIO_INPUT_PULL_DOWN>, + /* gpiog6 */ + <&gpiog 6 GPIO_INPUT_PULL_UP>, + + /* gpioh0 */ + <&gpioh 0 GPIO_INPUT_PULL_DOWN>, + /* gpioh3 */ + <&gpioh 3 GPIO_INPUT_PULL_DOWN>, + /* gpioh4 */ + <&gpioh 4 GPIO_INPUT_PULL_DOWN>, + /* gpioh5 */ + <&gpioh 5 GPIO_INPUT_PULL_DOWN>, + /* gpioh6 */ + <&gpioh 6 GPIO_INPUT_PULL_DOWN>, + + /* gpioi6 */ + <&gpioi 6 GPIO_INPUT_PULL_DOWN>, + /* gpioi7 */ + <&gpioi 7 GPIO_INPUT_PULL_DOWN>, + + /* gpioj0 */ + <&gpioj 0 GPIO_INPUT_PULL_DOWN>, + /* gpioj1 */ + <&gpioj 1 GPIO_INPUT_PULL_DOWN>, + /* gpioj2 */ + <&gpioj 2 GPIO_INPUT_PULL_DOWN>, + /* gpioj3 */ + <&gpioj 3 GPIO_INPUT_PULL_DOWN>, + /* gpioj4 */ + <&gpioj 4 GPIO_INPUT_PULL_DOWN>, + /* gpioj5 */ + <&gpioj 5 GPIO_INPUT_PULL_DOWN>, + /* gpioj6 */ + <&gpioj 6 GPIO_OUT_LOW>, + /* gpioj7 */ + <&gpioj 7 GPIO_OUT_LOW>, + + /* gpiom0 */ + <&gpiom 0 GPIO_INPUT_PULL_DOWN>, + /* gpiom1 */ + <&gpiom 1 GPIO_INPUT_PULL_DOWN>, + /* gpiom2 */ + <&gpiom 2 GPIO_INPUT_PULL_DOWN>, + /* gpiom3 */ + <&gpiom 3 GPIO_INPUT_PULL_DOWN>, + /* gpiom4 */ + <&gpiom 4 GPIO_INPUT_PULL_DOWN>, + /* gpiom6 */ + <&gpiom 6 GPIO_INPUT_PULL_DOWN>; + }; }; &adc0 { |