diff options
Diffstat (limited to 'sys/arm/allwinner/a10_gpio.c')
| -rw-r--r-- | sys/arm/allwinner/a10_gpio.c | 124 |
1 files changed, 66 insertions, 58 deletions
diff --git a/sys/arm/allwinner/a10_gpio.c b/sys/arm/allwinner/a10_gpio.c index 0eae992..4e6e612 100644 --- a/sys/arm/allwinner/a10_gpio.c +++ b/sys/arm/allwinner/a10_gpio.c @@ -54,49 +54,26 @@ __FBSDID("$FreeBSD$"); #include <arm/allwinner/allwinner_machdep.h> #include <arm/allwinner/allwinner_pinctrl.h> +#include <dev/extres/clk/clk.h> +#include <dev/extres/hwreset/hwreset.h> #include "gpio_if.h" -/* - * A10 have 9 banks of gpio. - * 32 pins per bank: - * PA0 - PA17 | PB0 - PB23 | PC0 - PC24 - * PD0 - PD27 | PE0 - PE31 | PF0 - PF5 - * PG0 - PG9 | PH0 - PH27 | PI0 - PI12 - */ - #define A10_GPIO_DEFAULT_CAPS (GPIO_PIN_INPUT | GPIO_PIN_OUTPUT | \ GPIO_PIN_PULLUP | GPIO_PIN_PULLDOWN) -#define A10_GPIO_NONE 0 -#define A10_GPIO_PULLUP 1 -#define A10_GPIO_PULLDOWN 2 +#define A10_GPIO_NONE 0 +#define A10_GPIO_PULLUP 1 +#define A10_GPIO_PULLDOWN 2 -#define A10_GPIO_INPUT 0 -#define A10_GPIO_OUTPUT 1 +#define A10_GPIO_INPUT 0 +#define A10_GPIO_OUTPUT 1 -#define AW_GPIO_DRV_MASK 0x3 -#define AW_GPIO_PUD_MASK 0x3 +#define AW_GPIO_DRV_MASK 0x3 +#define AW_GPIO_PUD_MASK 0x3 -static struct ofw_compat_data compat_data[] = { - {"allwinner,sun4i-a10-pinctrl", 1}, - {"allwinner,sun7i-a20-pinctrl", 1}, - {"allwinner,sun6i-a31-pinctrl", 1}, - {"allwinner,sun6i-a31s-pinctrl", 1}, - {NULL, 0} -}; - -struct a10_gpio_softc { - device_t sc_dev; - device_t sc_busdev; - struct mtx sc_mtx; - struct resource * sc_mem_res; - struct resource * sc_irq_res; - bus_space_tag_t sc_bst; - bus_space_handle_t sc_bsh; - void * sc_intrhand; - const struct allwinner_padconf * padconf; -}; +#define AW_PINCTRL 1 +#define AW_R_PINCTRL 2 /* Defined in a10_padconf.c */ #ifdef SOC_ALLWINNER_A10 @@ -118,6 +95,41 @@ extern const struct allwinner_padconf a31_padconf; extern const struct allwinner_padconf a31s_padconf; #endif +#if defined(SOC_ALLWINNER_A31) || defined(SOC_ALLWINNER_A31S) +extern const struct allwinner_padconf a31_r_padconf; +#endif + +static struct ofw_compat_data compat_data[] = { +#ifdef SOC_ALLWINNER_A10 + {"allwinner,sun4i-a10-pinctrl", (uintptr_t)&a10_padconf}, +#endif +#ifdef SOC_ALLWINNER_A20 + {"allwinner,sun7i-a20-pinctrl", (uintptr_t)&a20_padconf}, +#endif +#ifdef SOC_ALLWINNER_A31 + {"allwinner,sun6i-a31-pinctrl", (uintptr_t)&a31_padconf}, +#endif +#ifdef SOC_ALLWINNER_A31S + {"allwinner,sun6i-a31s-pinctrl", (uintptr_t)&a31s_padconf}, +#endif +#if defined(SOC_ALLWINNER_A31) || defined(SOC_ALLWINNER_A31S) + {"allwinner,sun6i-a31-r-pinctrl", (uintptr_t)&a31_r_padconf}, +#endif + {NULL, 0} +}; + +struct a10_gpio_softc { + device_t sc_dev; + device_t sc_busdev; + struct mtx sc_mtx; + struct resource * sc_mem_res; + struct resource * sc_irq_res; + bus_space_tag_t sc_bst; + bus_space_handle_t sc_bsh; + void * sc_intrhand; + const struct allwinner_padconf * padconf; +}; + #define A10_GPIO_LOCK(_sc) mtx_lock_spin(&(_sc)->sc_mtx) #define A10_GPIO_UNLOCK(_sc) mtx_unlock_spin(&(_sc)->sc_mtx) #define A10_GPIO_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->sc_mtx, MA_OWNED) @@ -526,9 +538,11 @@ a10_gpio_probe(device_t dev) static int a10_gpio_attach(device_t dev) { - int rid; + int rid, error; phandle_t gpio; struct a10_gpio_softc *sc; + clk_t clk; + hwreset_t rst; sc = device_get_softc(dev); sc->sc_dev = dev; @@ -561,29 +575,23 @@ a10_gpio_attach(device_t dev) goto fail; /* Use the right pin data for the current SoC */ - switch (allwinner_soc_type()) { -#ifdef SOC_ALLWINNER_A10 - case ALLWINNERSOC_A10: - sc->padconf = &a10_padconf; - break; -#endif -#ifdef SOC_ALLWINNER_A20 - case ALLWINNERSOC_A20: - sc->padconf = &a20_padconf; - break; -#endif -#ifdef SOC_ALLWINNER_A31 - case ALLWINNERSOC_A31: - sc->padconf = &a31_padconf; - break; -#endif -#ifdef SOC_ALLWINNER_A31S - case ALLWINNERSOC_A31S: - sc->padconf = &a31s_padconf; - break; -#endif - default: - return (ENOENT); + sc->padconf = (struct allwinner_padconf *)ofw_bus_search_compatible(dev, + compat_data)->ocd_data; + + if (hwreset_get_by_ofw_idx(dev, 0, &rst) == 0) { + error = hwreset_deassert(rst); + if (error != 0) { + device_printf(dev, "cannot de-assert reset\n"); + return (error); + } + } + + if (clk_get_by_ofw_index(dev, 0, &clk) == 0) { + error = clk_enable(clk); + if (error != 0) { + device_printf(dev, "could not enable clock\n"); + return (error); + } } sc->sc_busdev = gpiobus_attach_bus(dev); |
