diff options
| author | Havard Skinnemoen <hskinnemoen@google.com> | 2020-10-23 14:06:37 -0700 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2020-10-27 11:10:32 +0000 |
| commit | 526dbbe087475599589ada4df70a337c09ae0f3f (patch) | |
| tree | e952fde2b6f45bb9bdb891998a9fa71c16b0bb67 /docs | |
| parent | e23e7b12594ec0804c2d9f509f71841c82a62d1c (diff) | |
hw/gpio: Add GPIO model for Nuvoton NPCM7xx
The NPCM7xx chips have multiple GPIO controllers that are mostly
identical except for some minor differences like the reset values of
some registers. Each controller controls up to 32 pins.
Each individual pin is modeled as a pair of unnamed GPIOs -- one for
emitting the actual pin state, and one for driving the pin externally.
Like the nRF51 GPIO controller, a gpio level may be negative, which
means the pin is not driven, or floating.
Reviewed-by: Tyrone Ting <kfting@nuvoton.com>
Signed-off-by: Havard Skinnemoen <hskinnemoen@google.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/system/arm/nuvoton.rst | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/docs/system/arm/nuvoton.rst b/docs/system/arm/nuvoton.rst index 99fc61c740..b00d405d52 100644 --- a/docs/system/arm/nuvoton.rst +++ b/docs/system/arm/nuvoton.rst @@ -40,11 +40,11 @@ Supported devices * Flash Interface Unit (FIU; no protection features) * Random Number Generator (RNG) * USB host (USBH) + * GPIO controller Missing devices --------------- - * GPIO controller * LPC/eSPI host-to-BMC interface, including * Keyboard and mouse controller interface (KBCI) |