1cdcfb6e93
Features supported :
- the 8 STM32L4x5 GPIOs are initialized with their reset values
(except IDR, see below)
- input mode : setting a pin in input mode "externally" (using input
irqs) results in an out irq (transmitted to SYSCFG)
- output mode : setting a bit in ODR sets the corresponding out irq
(if this line is configured in output mode)
- pull-up, pull-down
- push-pull, open-drain
Difference with the real GPIOs :
- Alternate Function and Analog mode aren't implemented :
pins in AF/Analog behave like pins in input mode
- floating pins stay at their last value
- register IDR reset values differ from the real one :
values are coherent with the other registers reset values
and the fact that AF/Analog modes aren't implemented
- setting I/O output speed isn't supported
- locking port bits isn't supported
- ADC function isn't supported
- GPIOH has 16 pins instead of 2 pins
- writing to registers LCKR, AFRL, AFRH and ASCR is ineffective
Signed-off-by: Arnaud Minier <arnaud.minier@telecom-paris.fr>
Signed-off-by: Inès Varhol <ines.varhol@telecom-paris.fr>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20240305210444.310665-2-ines.varhol@telecom-paris.fr
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
19 lines
1007 B
Meson
19 lines
1007 B
Meson
system_ss.add(when: 'CONFIG_GPIO_KEY', if_true: files('gpio_key.c'))
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system_ss.add(when: 'CONFIG_GPIO_MPC8XXX', if_true: files('mpc8xxx.c'))
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system_ss.add(when: 'CONFIG_GPIO_PWR', if_true: files('gpio_pwr.c'))
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system_ss.add(when: 'CONFIG_MAX7310', if_true: files('max7310.c'))
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system_ss.add(when: 'CONFIG_PL061', if_true: files('pl061.c'))
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system_ss.add(when: 'CONFIG_ZAURUS', if_true: files('zaurus.c'))
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system_ss.add(when: 'CONFIG_IMX', if_true: files('imx_gpio.c'))
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system_ss.add(when: 'CONFIG_NPCM7XX', if_true: files('npcm7xx_gpio.c'))
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system_ss.add(when: 'CONFIG_NRF51_SOC', if_true: files('nrf51_gpio.c'))
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system_ss.add(when: 'CONFIG_OMAP', if_true: files('omap_gpio.c'))
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system_ss.add(when: 'CONFIG_RASPI', if_true: files(
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'bcm2835_gpio.c',
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'bcm2838_gpio.c'
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))
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system_ss.add(when: 'CONFIG_STM32L4X5_SOC', if_true: files('stm32l4x5_gpio.c'))
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system_ss.add(when: 'CONFIG_ASPEED_SOC', if_true: files('aspeed_gpio.c'))
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system_ss.add(when: 'CONFIG_SIFIVE_GPIO', if_true: files('sifive_gpio.c'))
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