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https://github.com/ARM-software/arm-trusted-firmware.git
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0d92745e10
There is really no reason to use and pass around a struct when its only member is the (fixed) base address. Remove the struct and just use the base address on its own inside the GPIO driver. Then set the base address automatically. This simplifies GPIO setup for users, which now don't need to deal with zeroing a struct and setting the base address anymore. Change-Id: I3060f7859e3f8ef9a24cc8fb38307b5da943f127 Signed-off-by: Andre Przywara <andre.przywara@arm.com>
34 lines
954 B
C
34 lines
954 B
C
/*
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* Copyright (c) 2019, Linaro Limited
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* Copyright (c) 2019, Ying-Chun Liu (PaulLiu) <paul.liu@linaro.org>
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef RPI3_GPIO_H
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#define RPI3_GPIO_H
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#include <stdint.h>
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#include <drivers/gpio.h>
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void rpi3_gpio_init(void);
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int rpi3_gpio_get_select(int gpio);
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void rpi3_gpio_set_select(int gpio, int fsel);
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#define RPI3_GPIO_GPFSEL(n) ((n) * U(0x04))
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#define RPI3_GPIO_GPSET(n) (((n) * U(0x04)) + U(0x1C))
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#define RPI3_GPIO_GPCLR(n) (((n) * U(0x04)) + U(0x28))
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#define RPI3_GPIO_GPLEV(n) (((n) * U(0x04)) + U(0x34))
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#define RPI3_GPIO_GPPUD U(0x94)
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#define RPI3_GPIO_GPPUDCLK(n) (((n) * U(0x04)) + U(0x98))
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#define RPI3_GPIO_FUNC_INPUT U(0)
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#define RPI3_GPIO_FUNC_OUTPUT U(1)
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#define RPI3_GPIO_FUNC_ALT0 U(4)
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#define RPI3_GPIO_FUNC_ALT1 U(5)
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#define RPI3_GPIO_FUNC_ALT2 U(6)
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#define RPI3_GPIO_FUNC_ALT3 U(7)
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#define RPI3_GPIO_FUNC_ALT4 U(3)
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#define RPI3_GPIO_FUNC_ALT5 U(2)
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#endif /* RPI3_GPIO_H */
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