diff options
| -rw-r--r-- | src/soc/rockchip/rk3399/Makefile.inc | 2 | ||||
| -rw-r--r-- | src/soc/rockchip/rk3399/gpio.c | 49 |
2 files changed, 51 insertions, 0 deletions
diff --git a/src/soc/rockchip/rk3399/Makefile.inc b/src/soc/rockchip/rk3399/Makefile.inc index bdd9d3eb26..bd6200f30a 100644 --- a/src/soc/rockchip/rk3399/Makefile.inc +++ b/src/soc/rockchip/rk3399/Makefile.inc @@ -51,6 +51,8 @@ ramstage-y += sdram.c ramstage-y += ../common/spi.c ramstage-$(CONFIG_DRIVERS_UART) += ../common/uart.c ramstage-y += clock.c +ramstage-y += ../common/gpio.c +ramstage-y += gpio.c ramstage-y += ../common/i2c.c ramstage-y += soc.c ramstage-y += timer.c diff --git a/src/soc/rockchip/rk3399/gpio.c b/src/soc/rockchip/rk3399/gpio.c new file mode 100644 index 0000000000..18e0b70931 --- /dev/null +++ b/src/soc/rockchip/rk3399/gpio.c @@ -0,0 +1,49 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2016 Rockchip Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <arch/io.h> +#include <console/console.h> +#include <gpio.h> +#include <soc/addressmap.h> +#include <soc/gpio.h> +#include <soc/grf.h> +#include <soc/soc.h> +#include <stdlib.h> + +struct rockchip_gpio_regs *gpio_port[] = { + (struct rockchip_gpio_regs *)GPIO0_BASE, + (struct rockchip_gpio_regs *)GPIO1_BASE, + (struct rockchip_gpio_regs *)GPIO2_BASE, + (struct rockchip_gpio_regs *)GPIO3_BASE, + (struct rockchip_gpio_regs *)GPIO4_BASE, +}; + +#define PMU_GPIO_PORT0 0 +#define PMU_GPIO_PORT1 1 + +int is_pmu_gpio(gpio_t gpio) +{ + if (gpio.port == PMU_GPIO_PORT0 || gpio.port == PMU_GPIO_PORT1) + return 1; + return 0; +} + +void *gpio_grf_reg(gpio_t gpio) +{ + if (is_pmu_gpio(gpio)) + return &rk3399_pmugrf->gpio0_p[gpio.port][gpio.bank]; + /* There are two pmu gpio, 0 and 1, so " - 2" */ + return &rk3399_grf->gpio2_p[(gpio.port - 2)][gpio.bank]; +} |